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We encourage you to perform a real-time search of NLEBeta
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1

Aging gauge  

DOE Patents [OSTI]

An aging gauge comprising a container having a fixed or a variable sized t opening with a cap which can be opened to control the sublimation rate of a thermally sublimational material contained within the container. In use, the aging gauge is stored with an item to determine total heat the item is subjected to and also the maximum temperature to which the item has been exposed. The aging gauge container contains a thermally sublimational material such as naphthalene or similar material which has a low sublimation rate over the temperature range from about 70.degree. F. to about 160.degree. F. The aging products determined by analyses of a like item aged along with the aging gauge for which the sublimation amount is determined is employed to establish a calibration curve for future aging evaluation. The aging gauge is provided with a means for determining the maximum temperature exposure (i.e., a thermally indicating material which gives an irreversible color change, Thermocolor pigment). Because of the relationship of doubling reaction rates for increases of 10.degree. C., equivalency of item used in accelerated aging evaluation can be obtained by referring to a calibration curve depicting storage temperature on the abscissa scale and multiplier on the ordinate scale.

Betts, Robert E. (Huntsville, AL); Crawford, John F. (Huntsville, AL)

1989-01-01T23:59:59.000Z

2

A comparison of recharge rates in aquifers of the United States based on groundwater-age data  

E-Print Network [OSTI]

complete model-based methods. Keywords Groundwater age . Groundwater recharge/ water budget . USA Introduction Well-constrained water budgets are needed to assess groundwater availability and manage aquifersA comparison of recharge rates in aquifers of the United States based on groundwater-age data P. B

3

Nuclear power plant performance assessment pertaining to plant aging in France and the United States  

E-Print Network [OSTI]

The effect of aging on nuclear power plant performance has come under increased scrutiny in recent years. The approaches used to make an assessment of this effect strongly influence the economics of nuclear power plant ...

Guyer, Brittany (Brittany Leigh)

2013-01-01T23:59:59.000Z

4

Design Evolution Study - Aging Options  

SciTech Connect (OSTI)

The purpose of this study is to identify options and issues for aging commercial spent nuclear fuel received for disposal at the Yucca Mountain Mined Geologic Repository. Some early shipments of commercial spent nuclear fuel to the repository may be received with high-heat-output (younger) fuel assemblies that will need to be managed to meet thermal goals for emplacement. The capability to age as much as 40,000 metric tons of heavy metal of commercial spent nuclear he1 would provide more flexibility in the design to manage this younger fuel and to decouple waste receipt and waste emplacement. The following potential aging location options are evaluated: (1) Surface aging at four locations near the North Portal; (2) Subsurface aging in the permanent emplacement drifts; and (3) Subsurface aging in a new subsurface area. The following aging container options are evaluated: (1) Complete Waste Package; (2) Stainless Steel inner liner of the waste package; (3) Dual Purpose Canisters; (4) Multi-Purpose Canisters; and (5) New disposable canister for uncanistered commercial spent nuclear fuel. Each option is compared to a ''Base Case,'' which is the expected normal waste packaging process without aging. A Value Engineering approach is used to score each option against nine technical criteria and rank the options. Open issues with each of the options and suggested future actions are also presented. Costs for aging containers and aging locations are evaluated separately. Capital costs are developed for direct costs and distributable field costs. To the extent practical, unit costs are presented. Indirect costs, operating costs, and total system life cycle costs will be evaluated outside of this study. Three recommendations for aging commercial spent nuclear fuel--subsurface, surface, and combined surface and subsurface are presented for further review in the overall design re-evaluation effort. Options that were evaluated but not recommended are: subsurface aging in a new subsurface area (high cost); surface aging in the complete waste package (risk to the waste package and impact on the Waste Handling Facility); and aging in the stainless steel liner (impact on the waste package design and new high risk operations added to the waste packaging process). The selection of a design basis for aging will be made in conjunction with the other design re-evaluation studies.

P. McDaniel

2002-04-05T23:59:59.000Z

5

Parylene C Aging Studies.  

SciTech Connect (OSTI)

Parylene C is used in a device because of its conformable deposition and other advantages. Techniques to study Parylene C aging were developed, and %22lessons learned%22 that could be utilized for future studies are the result of this initial study. Differential Scanning Calorimetry yielded temperature ranges for Parylene C aging as well as post-deposition treatment. Post-deposition techniques are suggested to improve Parylene C performance. Sample preparation was critical to aging regimen. Short-term (~40 days) aging experiments with free standing and ceramic-supported Parylene C films highlighted %22lessons learned%22 which stressed further investigations in order to refine sample preparation (film thickness, single sided uniform coating, machine versus laser cutting, annealing time, temperature) and testing issues (%22necking%22) for robust accelerated aging of Parylene C.

Achyuthan, Komandoor; Sawyer, Patricia Sue.; Mata, Guillermo Adrian; White II, Gregory Von; Bernstein, Robert

2014-09-01T23:59:59.000Z

6

COOEE bitumen: chemical aging  

E-Print Network [OSTI]

We study chemical aging in "COOEE bitumen" using molecular dynamic simulations. The model bitumen is composed of four realistic molecule types: saturated hydrocarbon, resinous oil, resin, and asphaltene. The aging reaction is modelled by the chemical reaction: "2 resins $\\rightarrow$ 1 asphaltene". Molecular dynamic simulations of four bitumen compositions, obtained by a repeated application of the aging reaction, are performed. The stress autocorrelation function, the fluid structure, the rotational dynamics of the plane aromatic molecules, and the diffusivity of each molecule, are determined for the four different compositions. The aging reaction causes a significant dynamics slowdown, which is correlated to the aggregation of asphaltene molecules in larger and dynamically slower nanoaggregates. Finally, a detailed description of the role of each molecule types in the aggregation and aging processes is given.

Lemarchand, Claire A; Dyre, Jeppe C; Hansen, Jesper S

2013-01-01T23:59:59.000Z

7

New Age Teaching: Beyond Didactics  

E-Print Network [OSTI]

Age Teaching: Beyond Didactics TheScientificWorldJOURNAL (New age teaching: beyond didactics. TSW Urology 1, 75Ė85.New Age Teaching: Beyond Didactics Peter D. Vlaovic and

Vlaovic, Peter D; McDougall, Elspeth M

2006-01-01T23:59:59.000Z

8

Aging in community  

E-Print Network [OSTI]

Baby Boomers are on the brink of retirement. According to U.S. Census Bureau projections, the number of people aged 65 and over will more than double in the coming decades, growing from 35 million in 2000 to 72 million in ...

Fay, Justin (Justin Thomas)

2008-01-01T23:59:59.000Z

9

Concrete containment aging study  

SciTech Connect (OSTI)

In 1989, IAEA initiated a pilot study on the management of aging of nuclear power plant components. The Phase I and II studies of concrete containment are discussed. With the data base, plant owners will be able to review and enhance their existing programs. IAEA will analyze data provided by participating plants and the report is scheduled to be released by late 1994 (final report release mid-1995).

Pachner, J. [International Atomic Energy Agency, Vienna (Austria); Tai, T.M. [Bechtel National, Inc., Oak Ridge, TN (United States); Naus, D. [Oak Ridge National Lab., TN (United States)

1994-04-01T23:59:59.000Z

10

Aging and functional brain networks  

SciTech Connect (OSTI)

Aging is associated with changes in human brain anatomy and function and cognitive decline. Recent studies suggest the aging decline of major functional connectivity hubs in the 'default-mode' network (DMN). Aging effects on other networks, however, are largely unknown. We hypothesized that aging would be associated with a decline of short- and long-range functional connectivity density (FCD) hubs in the DMN. To test this hypothesis, we evaluated resting-state data sets corresponding to 913 healthy subjects from a public magnetic resonance imaging database using functional connectivity density mapping (FCDM), a voxelwise and data-driven approach, together with parallel computing. Aging was associated with pronounced long-range FCD decreases in DMN and dorsal attention network (DAN) and with increases in somatosensory and subcortical networks. Aging effects in these networks were stronger for long-range than for short-range FCD and were also detected at the level of the main functional hubs. Females had higher short- and long-range FCD in DMN and lower FCD in the somatosensory network than males, but the gender by age interaction effects were not significant for any of the networks or hubs. These findings suggest that long-range connections may be more vulnerable to aging effects than short-range connections and that, in addition to the DMN, the DAN is also sensitive to aging effects, which could underlie the deterioration of attention processes that occurs with aging.

Tomasi D.; Tomasi, D.; Volkow, N.D.

2011-07-11T23:59:59.000Z

11

Relative Ages of Globular Clusters  

E-Print Network [OSTI]

Ages of extragalactic globular clusters can provide valuable insights into the formation and evolution of galaxies. In this contribution the photometric methods of age dating old globular cluster systems are summarised. The spectroscopic approach is reviewed with an emphasis of the right choice of age diagnostics. We present a new method of quantifying the relatively best age-sensitive spectroscopic index given the quality of a data set and a certain theoretical stellar synthesis model. The relatively best diagnostic plot is constructed from the set of Lick indices and used to age date globular clusters in several early-type galaxies which are part of a large spectroscopic survey of extragalactic globular cluster systems. We find that, independently of host galaxy, metal-poor ([Fe/H] 8 Gyr) and coeval. Metal-rich clusters show a wide range of ages from ~15 down to a few Gyr.

Thomas H. Puzia

2002-10-18T23:59:59.000Z

12

AGING FACILITY WORKER DOSE ASSESSMENT  

SciTech Connect (OSTI)

The purpose of this calculation is to estimate radiation doses received by personnel working in the Aging Facility performing operations to transfer aging casks to the aging pads for thermal and logistical management, stage empty aging casks, and retrieve aging casks from the aging pads for further processing in other site facilities. Doses received by workers due to aging cask surveillance and maintenance operations are also included. The specific scope of work contained in this calculation covers both collective doses and individual worker group doses on an annual basis, and includes the contributions due to external and internal radiation from normal operation. There are no Category 1 event sequences associated with the Aging Facility (BSC 2004 [DIRS 167268], Section 7.2.1). The results of this calculation will be used to support the design of the Aging Facility and to provide occupational dose estimates for the License Application. The calculations contained in this document were developed by Environmental and Nuclear Engineering of the Design and Engineering Organization and are intended solely for the use of the Design and Engineering Organization in its work regarding facility operation. Yucca Mountain Project personnel from the Environmental and Nuclear Engineering should be consulted before use of the calculations for purposes other than those stated herein or use by individuals other than authorized personnel in Environmental and Nuclear Engineering.

R.L. Thacker

2005-03-24T23:59:59.000Z

13

Blind teen-age students' expectations Focus: school-age  

E-Print Network [OSTI]

Blind teen-age students' expectations Focus: school-age Topic: What are the changing demands disabled pupils, inclusion increased significantly, particularly in high schools. Blind learners, who used. For this lecture, I will present a few blind students' opinions, which will help building the items for the case

Paris-Sud XI, Universitť de

14

AGING SYSTEM DESIGN DEVELOPMENT STRATEGY  

SciTech Connect (OSTI)

This plan provides an overview, work to date, and the path forward for the design development strategy of the Aging cask for aging commercial spent nuclear fuel (CSNF) at the Yucca Mountain Project (YMP) repository site. Waste for subsurface emplacement at the repository includes US Department of Energy (DOE) high-level radioactive waste (HLW), DOE SNF, commercial fuel in dual-purpose canisters (DPCs), uncanistered bare fuel, naval fuel, and other waste types. Table 1-1 lists the types of radioactive materials that may be aged at YMP, and those materials that will not be placed in an aging cask or module. This plan presents the strategy for design development of the Aging system. The Aging system will not handle naval fuel, DOE HLW, MCOs, or DOE SNF since those materials will be delivered to the repository in a state and sequence that allows them to be placed into waste packages for emplacement. Some CSNF from nuclear reactors, especially CSNF that is thermally too hot for emplacement underground, will need to be aged at the repository.

J. Beesley

2005-02-07T23:59:59.000Z

15

Cell Senescence: Aging and Cancer  

ScienceCinema (OSTI)

Scientists have identified a molecular cause behind the ravages of old age and in doing so have also shown how a natural process for fighting cancer in younger persons can actually promote cancer in older individuals.

Campisi, Judith

2013-05-29T23:59:59.000Z

16

Malcolm Guite Poets in Age  

E-Print Network [OSTI]

Malcolm Guite Poets in Age or A Study of Reading Habits At first I used to wish that I were Keats passing bell is rung. But now I need the poets who grew old And wore the bottoms of their trousers rolled of pure gold. I need the poets now, who match my age, Like Coleridge I could become a sage, And I bet I

Robertson, Stephen

17

THE AGE OF PLASTIC INGENUITY + RESPONSIBILITY  

E-Print Network [OSTI]

THE AGE OF PLASTIC INGENUITY + RESPONSIBILITY An Interdisciplinary Symposium Stone Age, Bronze Age, Iron Age...and now the Age of Plastic. The Smithsonian Institution is leveraging its collections--arguably the world's greatest repository of plastic material culture--to investigate the significance of plastic, its

Mathis, Wayne N.

18

Deactivation of Accelerated Engine-Aged and Field-Aged SCR Catalysts...  

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

Deactivation of Accelerated Engine-Aged and Field-Aged SCR Catalysts and the Role of the DOC Deactivation of Accelerated Engine-Aged and Field-Aged SCR Catalysts and the Role of...

19

Transportation, Aging and Disposal Canister System Performance...  

Office of Environmental Management (EM)

specifications for selected system components of the Transportation, Aging and Disposal (TAD) canister-based system. Transportation, Aging and Disposal Canister System Performance...

20

!anspace age esa SP-1150  

E-Print Network [OSTI]

.2 Solar Wind 3.3 Role of Europe 3.4 Conclusions and Recommendations 4. High-Energy Physics 4.8 Role of Europe 5.9 Conclusions and Recommendations 6. Exploitation of the Moon 6.1 Power Generation!anspace age #12;esa SP-1150 June 1992 MISSIONto the MOON Europe's Priorities

Rathbun, Julie A.

Note: This page contains sample records for the topic "units age age" 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

Kentucky Cheese: Coming of Age  

E-Print Network [OSTI]

i The FoodIssue Kentucky Cheese: Coming of Age pg. 7 Kentucky is Apple-icious A Taste for Success and does not imply approval to the exclusion of other suitable products or firms. Kentucky Cheese: Coming, and approved by UK's Food Systems Innovation Center. Kentucky is Apple-icious Let those northern and western

Hayes, Jane E.

22

June 17, 2013 Symposium on Aging  

E-Print Network [OSTI]

to forestall and treat diseases of aging such as diabetes, cancer, Alzheimer's and heart disease. Today

Church, George M.

23

Continuous Commissioningģ in an Aged Office Building  

E-Print Network [OSTI]

ICEBO2005 Cui and Liu Continuous Commissioning SM in an Aged Office Building Y. Cui, Ph.D. Energy Systems Laboratory Architectural Engineering Department University of Nebraska-Lincoln Omaha, NE 68182 cuiy@unomaha.edu Mingsheng Liu, Ph... and Liu Units (AHUs). Among these, 7 AHUs serve the Main Building and Executive Wing areas: one AHU, called Primary AHU, for the perimeter of the Main Building and Executive Wing areas, and six AHUs, called Interior AHUs, for the interior of Main...

Cui, Y.; Liu, M.

2005-01-01T23:59:59.000Z

24

advancing paternal age: Topics by E-print Network  

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

In most animals, advancing age is accompanied by the deteriorative process of aging (senescence). Aging is the main cause of severe illness and death in humans aging is...

25

advanced paternal age: Topics by E-print Network  

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

In most animals, advancing age is accompanied by the deteriorative process of aging (senescence). Aging is the main cause of severe illness and death in humans aging is...

26

Chelation: A Fundamental Mechanism of Action of AGE Inhibitors...  

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

Mechanism of Action of AGE Inhibitors, AGE Breakers, and Other Inhibitors of Diabetes Complications. Chelation: A Fundamental Mechanism of Action of AGE Inhibitors, AGE...

27

Aging of Pentaerythritol Tetranitrate (PETN)  

SciTech Connect (OSTI)

Pentaerythritol tetranitrate (PETN) is a relatively sensitive explosive used in many electroexplosive devices as well as in medicine. Of primary interest to LLNL is its use in items such as exploding bridgewire (EBW) detonators and exploding bridge foil initiators (EFI). In these devices the crystalline powder is pressed into a granular, low-density compact that can be initiated by an exploding wire or foil. The long-term stability of this pressed compact is of interest to weapon stockpile lifetime prediction studies. Key points about potential aging mechanisms can be summarized as follows: (1) There are a number of factors that can contribute to PETN instability. These include particle size, polymorphic phase transitions, crystal structure, impurities, moisture, occlusions, chemical incompatibility and biological (microorganism) action. of these factors the most important for long-term aging of high surface area powders used in detonators appears to be that of particle size growth. (2) There is a great deal of literature on the thermal degradation kinetics of PETN, unfortunately much of it with little bearing on ambient temperature aging during long-term storage. PETN is very stable with respect to thermal decomposition. Low-temperature thermal studies have not revealed evidence of chemical degradation products in archived PETN. Data extrapolated to 30 C predicts a half-life of 12 million years. (3) Moisture seems to lower the activation energy for and accelerate the decomposition of PETN. (4) External drivers affecting stability include temperature, moisture, radiation fields, and stress, while internal drivers include residual solvents, and impurities. Temperature affects kinetic processes of crystal growth such as adsorption, desorption, and diffusion rates of molecules on the surface of PETN crystals. A low-level radiation field may induce unexpected changes in the chemical makeup of PETN and its homologue impurities. Stress at high pressure points caused by crystalline surface irregularities may cause a decrease in surface area over time due to smoothing of contact points and sintering. PETN has been found to contain a number of impurities, including homologues, pentaerythryl ethers with a mixture of hydroxyl and nitrate functional groups, and organic salts, that can alter its physical and chemical properties. (5) The processes of sublimation/recrystallization and surface diffusion are important processes that can cause changes in PETN crystal morphology, particle size distribution and specific surface area. Sublimation feeds a process called Ostwald ripening, which involves the spontaneous growth of larger crystals from those of smaller size. This process proceeds with age regardless of storage conditions unless the crystals are treated to retard growth. The coarsening mechanisms include Ostwald ripening, 'sintering', and surface diffusion. The latter has not been experimentally observed, but a molecular modeling approach has attempted to investigate this phenomenon theoretically. (6) Threshold test fire, particle size distribution, specific surface area, thermal analysis, chemical analysis, powder compact specific surface area and density are approaches that have been used in the attempt to assess changes attributable to aging of PETN, with varying results. The biggest problem lies in the aging mechanism itself, which likely influences small changes in morphology, both internal and external, and particle size distribution changes on a scale too small to reliably monitor. Other aspects, such as subtle changes in density profiles within pressed powder compacts, may be beyond the capability of current technology to assess. Crystal growth significant enough to affect the PETN particle size distribution is expected to impact detonator performance. (7) Factors relevant to stabilizing particle size growth include crystal morphology, powder surface area and particle size distribution; crystal density and internal defects; and powder compact density and density gradients.

Foltz, M F

2009-04-22T23:59:59.000Z

28

SNF AGING SYSTEM DESCRIPTION DOCUMENT  

SciTech Connect (OSTI)

The purpose of this system description document (SDD) is to establish requirements that drive the design of the spent nuclear fuel (SNF) aging system and associated bases, which will allow the design effort to proceed. This SDD will be revised at strategic points as the design matures. This SDD identifies the requirements and describes the system design, as it currently exists, with emphasis on attributes of the design provided to meet the requirements. This SDD is an engineering tool for design control; accordingly, the primary audience and users are design engineers. This SDD is part of an iterative design process. It leads the design process with regard to the flow down of upper tier requirements onto the system. Knowledge of these requirements is essential in performing the design process. The SDD follows the design with regard to the description of the system. The description provided in the SDD reflects the current results of the design process. Throughout this SDD, the term aging cask applies to vertical site-specific casks and to horizontal aging modules. The term overpack is a vertical site-specific cask that contains a dual-purpose canister (DPC) or a disposable canister. Functional and operational requirements applicable to this system were obtained from ''Project Functional and Operational Requirements'' (F&OR) (Curry 2004 [DIRS 170557]). Other requirements that support the design process were taken from documents such as ''Project Design Criteria Document'' (PDC) (BSC 2004 [DES 171599]), ''Site Fire Hazards Analyses'' (BSC 2005 [DIRS 172174]), and ''Nuclear Safety Design Bases for License Application'' (BSC 2005 [DIRS 171512]). The documents address requirements in the ''Project Requirements Document'' (PRD) (Canori and Leitner 2003 [DIRS 166275]). This SDD includes several appendices. Appendix A is a Glossary; Appendix B is a list of key system charts, diagrams, drawings, lists and additional supporting information; and Appendix C is a list of procedures that will be used to operate the system.

L.L. Swanson

2005-04-06T23:59:59.000Z

29

arabian iron age: Topics by E-print Network  

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

iron deficiency should be the goal of nutritional intervention programs. In the United States, approximately 5 % of children from 1-5 years of age suffer from iron deficiency...

30

ageing study bhas: Topics by E-print Network  

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

Growing-Stock Study at Age 401 William W. Oliver2 Abstract in the southwestern United States (Oliver and Ryker 1990). Throughout this vast area ponderosa pine is one of the most...

31

aging study bhas: Topics by E-print Network  

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

Growing-Stock Study at Age 401 William W. Oliver2 Abstract in the southwestern United States (Oliver and Ryker 1990). Throughout this vast area ponderosa pine is one of the most...

32

Dark Energy in the Dark Ages  

E-Print Network [OSTI]

LBNL- 61876 Dark Energy in the Dark Ages Eric V. LinderUniversity of California. Dark Energy in the Dark Ages Eric2008) Non-negligible dark energy density at high redshifts

Linder, Eric V.

2009-01-01T23:59:59.000Z

33

Utah Commission on Aging June 6, 2007  

E-Print Network [OSTI]

Institutions Norma Matheson Chair Anne Peterson University of Utah Mayor JoAnn Seghini Midvale City Sara to the Commission for consideration. ∑ Aging SMART: Denise Brooks distributed Aging SMART Sourcebook. Website is up

Tipple, Brett

34

Dry aging beef for the retail channel  

E-Print Network [OSTI]

Koohmaraie, & Goll, 1995). The Z-line is one myofibrillar structure clearly altered by proteases in the postmortem aging of beef (Goll, Otsuka, Nagainis, Shannon, Sathe, & Muguruma, 1983). However, Z-disk degradation does not occur to any significant... and humidity is said to be dry aged. Practically all beef is vacuumed packaged at the packer level. However, many believe 3 that wet aging does not produce the enhanced palatability characteristics associated with dry aged beef. This process can...

Smith, Robert David

2007-09-17T23:59:59.000Z

35

aged rat erectile: Topics by E-print Network  

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

98504-3144 An age-length key (ALK) is the tra- ditional method for estimating age-stage length samples for relatively costly age determination (age subsamplel. Age...

36

aged interleukin-18 deficient: Topics by E-print Network  

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

98504-3144 An age-length key (ALK) is the tra- ditional method for estimating age-stage length samples for relatively costly age determination (age subsamplel. Age...

37

age stratigraphic relationships: Topics by E-print Network  

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

98504-3144 An age-length key (ALK) is the tra- ditional method for estimating age-stage length samples for relatively costly age determination (age subsamplel. Age...

38

aged korean adults: Topics by E-print Network  

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

AGING & SOCIETY Engineering Websites Summary: DEPARTMENT OF HEALTH, AGING & SOCIETY Monthly Speaker Series Dr. Ellen B. Ryan DATE TIME ROOM Department of Health, Aging, &...

39

Materials Research in the Information Age  

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

Materials Research in the Information Age Accelerating Advanced Material Development NERSC Science Gateway a 'Google of Material Properties' October 31, 2011 | Tags: Materials...

40

UNDEREMPLOYMENT AMONG MATURE AGE WORKERS IN AUSTRALIA  

E-Print Network [OSTI]

1 UNDEREMPLOYMENT AMONG MATURE AGE WORKERS IN AUSTRALIA * Jinjing Li1 , Alan Duncan2 and Riyana Miranti1 1 NATSEM, University of Canberra, Australia 2 Bankwest Curtin Economics Centre, Curtin University of underemployment for mature aged workers in Australia, and seeks in particular to determine the principal factors

Note: This page contains sample records for the topic "units age age" 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

6, 39453963, 2006 Methanol inside aged  

E-Print Network [OSTI]

. The oxidation of methane (and other hydrocarbons) can also produce methanol primarily via the self reactionACPD 6, 3945­3963, 2006 Methanol inside aged tropical biomass burning plumes G. Dufour et al. Title Chemistry and Physics Discussions First space-borne measurements of methanol inside aged tropical biomass

42

New age constraints on the Middle Stone Age occupations of Kharga Oasis, Western Desert, Egypt  

E-Print Network [OSTI]

New age constraints on the Middle Stone Age occupations of Kharga Oasis, Western Desert, Egypt rocks, or tufas, exposed along the flanks of the Libyan Plateau near Kharga Oasis, Western Desert, Egypt

Asmerom, Yemane

43

Deactivation of Accelerated Engine-Aged and Field-Aged SCR Catalysts...  

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

of Accelerated Engine-Aged and Field-Aged SCR Catalysts and the Role of the DOC Adam Foster and Ke Nguyen University of Tennessee - Knoxville Bruce G. Bunting and Todd J. Toops Oak...

44

Evidence of aging effects on certain safety-related components  

SciTech Connect (OSTI)

In response to interest shown by the Nuclear Energy Agency (NEA), Principal Working Group I (PWG- 1) of the Committee on the Safety of Nuclear Installations (CSNI) conducted a generic study on the effects of aging of active components in nuclear power plants. (This focus on active components is consistent with PWG-l`s mandate; passive components are primarily within the mandate of PWG-3.) Representatives from France, Sweden, Finland, Japan, the United States, and the United Kingdom participated in the study by submitting reports documenting aging studies performed in their countries. This report consists of summaries of those reports, along with a comparison of the various statistical analysis methods used in the studies. The studies indicate that with some exceptions, active components generally do not present a significant aging problem in nuclear power plants. Design criteria and effective preventative maintenance programs, including timely replacement of components, are effective in mitigating potential aging problems. However, aging studies (such as qualitative and statistical analyses of failure modes and maintenance data) are an important part of efforts to identify and solve potential aging problems. Solving these problems typically includes such strategies as replacing suspect components with improved components, and implementing improved maintenance programs.

Magleby, H.L.; Atwood, C.L.; MacDonald, P.E.; Edson, J.L.; Bramwell, D.L. [Lockheed Idaho Technologies Co., Idaho Falls, ID (United States)

1996-01-01T23:59:59.000Z

45

Aging study of boiling water reactor high pressure injection systems  

SciTech Connect (OSTI)

The purpose of high pressure injection systems is to maintain an adequate coolant level in reactor pressure vessels, so that the fuel cladding temperature does not exceed 1,200{degrees}C (2,200{degrees}F), and to permit plant shutdown during a variety of design basis loss-of-coolant accidents. This report presents the results of a study on aging performed for high pressure injection systems of boiling water reactor plants in the United States. The purpose of the study was to identify and evaluate the effects of aging and the effectiveness of testing and maintenance in detecting and mitigating aging degradation. Guidelines from the United States Nuclear Regulatory Commission`s Nuclear Plant Aging Research Program were used in performing the aging study. Review and analysis of the failures reported in databases such as Nuclear Power Experience, Licensee Event Reports, and the Nuclear Plant Reliability Data System, along with plant-specific maintenance records databases, are included in this report to provide the information required to identify aging stressors, failure modes, and failure causes. Several probabilistic risk assessments were reviewed to identify risk-significant components in high pressure injection systems. Testing, maintenance, specific safety issues, and codes and standards are also discussed.

Conley, D.A.; Edson, J.L.; Fineman, C.F. [Lockheed Idaho Technologies Co., Idaho Falls, ID (United States)

1995-03-01T23:59:59.000Z

46

Computational Age Dating of Special Nuclear Materials  

SciTech Connect (OSTI)

This slide-show presented an overview of the Constrained Progressive Reversal (CPR) method for computing decays, age dating, and spoof detecting. The CPR method is: Capable of temporal profiling a SNM sample; Precise (compared with known decay code, such a ORIGEN); Easy (for computer implementation and analysis). ? We have illustrated with real SNM data using CPR for age dating and spoof detection. If SNM is pure, may use CPR to derive its age. If SNM is mixed, CPR will indicate that it is mixed or spoofed.

None

2012-06-30T23:59:59.000Z

47

Aging and weathering of cool roofing membranes  

SciTech Connect (OSTI)

Aging and weathering can reduce the solar reflectance of cool roofing materials. This paper summarizes laboratory measurements of the solar spectral reflectance of unweathered, weathered, and cleaned samples collected from single-ply roofing membranes at various sites across the United States. Fifteen samples were examined in each of the following six conditions: unweathered; weathered; weathered and brushed; weathered, brushed and then rinsed with water; weathered, brushed, rinsed with water, and then washed with soap and water; and weathered, brushed, rinsed with water, washed with soap and water, and then washed with an algaecide. Another 25 samples from 25 roofs across the United States and Canada were measured in their unweathered state, weathered, and weathered and wiped. We document reduction in reflectivity resulted from various soiling mechanisms and provide data on the effectiveness of various cleaning approaches. Results indicate that although the majority of samples after being washed with detergent could be brought to within 90% of their unweathered reflectivity, in some instances an algaecide was required to restore this level of reflectivity.

Akbari, Hashem; Berhe, Asmeret A.; Levinson, Ronnen; Graveline,Stanley; Foley, Kevin; Delgado, Ana H.; Paroli, Ralph M.

2005-08-23T23:59:59.000Z

48

HYGROTHERMAL AGING OF POLYIMIDE MATRIX COMPOSITE LAMINATES  

E-Print Network [OSTI]

. The time to initiate water-induced microcracks, tm, (in minutes), was log .t T m = + 3423 1 35 (1) #12-ply laminates and supplied to us by the Boeing Company. For hygrothermal aging experiments, a series

Nairn, John A.

49

Aging of polymeric composites : a literature review  

E-Print Network [OSTI]

Due to their increased use in today's society, an extensive survey was undertaken in this report to condense what's been, thus far, discovered as to the effects of aging on polymeric composites. Special emphasis was placed ...

TreviŮo-Garrido, Margie N

2013-01-01T23:59:59.000Z

50

QUANTITY SEX AGE WEIGHT WITH: VENDOR  

E-Print Network [OSTI]

QUANTITY SEX AGE WEIGHT NUMBER/ CAGE WITH: VENDOR: REFERENCE No: PO No: FACILITY: RECEIVED ON PLACED BY: DATE: SUGGESTED VENDOR: AUP No: USER's PHONE No: USER's NAME: USER's EMAIL: ANIMAL REQUEST

Arnold, Jonathan

51

June 18, 2012 Symposium on Aging  

E-Print Network [OSTI]

, anemia, muscular dystrophy, and diabetes. The reasons for accelerating research into the molecular diseases of aging such as diabetes, cancer, Alzheimer's and heart disease. Today's attendees come not only

Church, George M.

52

Understanding the genetics of aging: a canine model  

E-Print Network [OSTI]

................................................................. 62 8 P-values for Prop1 polymorphisms.............................................................. 63 1 CHfAPTER I INTRODUCTION Aging and Longevity Life expectancy in the United States is increasing each... in mice of smaller size were analyzed to determine if any sequence differences are responsibfle for the similar phenomenon which is obfserved in the dog. 14 CHfAPTER II STATISTICAL ANALYSIS REGARDING...

Canterberry, Sarah Christine

2007-04-25T23:59:59.000Z

53

Maximum Entry and Mandatory Separation Ages for Certain Security Employees  

Broader source: Directives, Delegations, and Requirements [Office of Management (MA)]

The policy establishes the DOE policy on maximum entry and mandatory separation ages for primary or secondary positions covered under special statutory retirement provisions and for those employees whose primary duties are the protection of officials of the United States against threats to personal safety or the investigation, apprehension, and detention of individuals suspected or convicted of offenses against the criminal laws of the United States. Admin Chg 1, dated 12-1-11, cancels DOE P 310.1.

2001-10-11T23:59:59.000Z

54

E-Print Network 3.0 - aging society aging Sample Search Results  

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

of two different aging techniques. ... Source: South Dakota State University, Climate Change and Prairie Wetlands Program Collection: Environmental Sciences and Ecology ;...

55

E-Print Network 3.0 - age gestational age Sample Search Results  

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

Collection: Energy Storage, Conversion and Utilization 25 Pregnancy ComplicationsHealth Problems Complication Explanation Summary: her gestational age. (Sometimes referred to as...

56

Restructuring and aging in a capillary suspension  

E-Print Network [OSTI]

The rheological properties of capillary suspensions, suspensions with small amounts of an added immiscible fluid, are dramatically altered with the addition of the secondary fluid. We investigate a capillary suspension to determine how the network ages and restructures at rest and under applied external shear deformation. The present work uses calcium carbonate suspended in silicone oil (11 % solids) with added water as a model system. Aging of capillary suspensions and their response to applied oscillatory shear is distinctly different from particulate gels dominated by the van der Waals forces. The suspensions dominated by the capillary force are very sensitive to oscillatory flow, with the linear viscoelastic regime ending at a deformation of only 0.1 % and demonstrating power-law aging behavior. This aging persists for long times at low deformations or for shorter times with a sudden decrease in the strength at higher deformations. This aging behavior suggests that the network is able to rearrange and even rupture. This same sensitivity is not demonstrated in shear flow where very high shear rates are required to rupture the agglomerates returning the apparent viscosity of capillary suspensions to the same viscosity as for the pure vdW suspension. A transitional region is also present at intermediate water contents wherein the material response depends very strongly on the type, strength, and duration of the external forcing.

Erin Koos; Wolfgang Kannowade; Norbert Willenbacher

2014-10-16T23:59:59.000Z

57

Globular Cluster Ages and Stromgren CCD Photometry  

E-Print Network [OSTI]

Stromgren uvby CCD photometry can be used in a variety of ways to constrain the absolute and relative ages of globular clusters. The reddening corrected (v-y, c1) diagram offers the means to derive ages that are completely independent of distance. Very precise differential ages for clusters of the same chemical composition may also be determined from such 2-color plots, or from measurements of the magnitude difference, Delta_u, between the subgiant and horizontal branches on the $u-y, u$ plane (where both of these features are flat and well-defined, even for clusters like M13 that have extremely blue HBs on the (B-V, V) diagram). Based on high-quality photometry we find that: (1) M92 is 15 Gyr old, (2) M3 and M13 differ in age by < 1 Gyr, and (3) NGC 288, NGC 362, and NGC 1851 are coeval to within ~1.5 Gyr. These results strongly suggest that age cannot be the only ``second parameter''. Finally, we suggest that the observed variations in c1 among giant branch stars in all the metal-poor clusters that we have studied so far are likely due to star-to-star C and N abundance variations, and potentially indicate that most (if not all) globular clusters have ``primordial'' variations in at least these elements.

Frank Grundahl

1999-09-23T23:59:59.000Z

58

Died suddenly under age 50 Heart disease  

E-Print Network [OSTI]

­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­ _____________________________________________________________ Student cell phone Current email address (for contact over the summer) Persons to contact in case _________________________________________________ _________________________________________________ Home phone Business phone Cell phone Home phone Business phone Cell phone State of Age at Age Health _________________________________________________ _________________________________________________ City State Zip Code Nation (if not US) Home phone

Smith, Marc L.

59

american children ages: Topics by E-print Network  

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

july 2004 Age-Specific Demography in Plantago: Uncovering Roach,. Deborah 17 Tackling Dyslexia at an Early Age esearchers at HMS and Boston Children's Biology and Medicine Websites...

60

aging tumor growth: Topics by E-print Network  

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

1983), provide valuable data on the age 85 AGE AND GROWTH OF SKIPJACK TUNA, KATSUWONUS PELAMIS, AND YELLOWFIN TUNA, THUNNUS ALBACARES, AS INDICATED Environmental Sciences and...

Note: This page contains sample records for the topic "units age age" 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

aging aircraft nondestructive: Topics by E-print Network  

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

at Early Ages An Experimental and Numerical Analysis by Dr for Nondestructive Testing of Cement-Based Materials at Early Ages - An Experi- mental and Numerical Analysis...

62

Diagnostic and Prognostic Analysis of Battery Performance & Aging...  

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

and Prognostic Analysis of Battery Performance & Aging based on Kinetic and Thermodynamic Principles Diagnostic and Prognostic Analysis of Battery Performance & Aging based on...

63

Rapid Aging Protocols for Diesel Aftertreatment Devices: NOx...  

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

Rapid Aging Protocols for Diesel Aftertreatment Devices: NOx Abatement Catalysts Rapid Aging Protocols for Diesel Aftertreatment Devices: NOx Abatement Catalysts Poster...

64

Accelerated Aging of Roofing Surfaces | Department of Energy  

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

Accelerated Aging of Roofing Surfaces Accelerated Aging of Roofing Surfaces Emerging Technologies Project for the 2013 Building Technologies Office's Program Peer Review...

65

THYROID HORMONE REVERSES AGING-INDUCED MYOCARDIAL FATTY ACID...  

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

occurs during aging in humans and mice and may contribute to development of heart failure. Aging also impairs myocardial fatty acid oxidation, causing increased...

66

Review: Glut: Mastering Information throughout the Ages by Alex Wright  

E-Print Network [OSTI]

In positing his proposal, Wright has provided the literaturethrough the Ages by Alex Wright. Washington: Joseph Henrythrough the Ages, Alex Wright may have uncovered one such

Haley, Dan

2008-01-01T23:59:59.000Z

67

Effect of non-ageing and ageing ceria nanoparticles suspensions on fresh water micro-algae  

E-Print Network [OSTI]

Effect of non-ageing and ageing ceria nanoparticles suspensions on fresh water micro-algae Manier nanoparticle (nCeO2) suspensions, towards freshwater micro-algae assessing the effect nCeO2 suspensions microscopy (TEM). In addition, the interaction between NPs and algae were investigated using flow

Boyer, Edmond

68

Adapting Dry Cask Storage for Aging at a Geologic Repository  

SciTech Connect (OSTI)

A Spent Nuclear Fuel (SNF) Aging System is a crucial part of operations at the proposed Yucca Mountain repository in the United States. Incoming commercial SNF that does not meet thermal limits for emplacement will be aged on outdoor pads. U.S. Department of Energy SNF will also be managed using the Aging System. Proposed site-specific designs for the Aging System are closely based upon designs for existing dry cask storage (DCS) systems. This paper evaluates the applicability of existing DCS systems for use in the SNF Aging System at Yucca Mountain. The most important difference between existing DCS facilities and the Yucca Mountain facility is the required capacity. Existing DCS facilities typically have less than 50 casks. The current design for the aging pad at Yucca Mountain calls for a capacity of over 2,000 casks (20,000 MTHM) [1]. This unprecedented number of casks poses some unique problems. The response of DCS systems to off-normal and accident conditions needs to be re-evaluated for multiple storage casks. Dose calculations become more complicated, since doses from multiple or very long arrays of casks can dramatically increase the total boundary dose. For occupational doses, the geometry of the cask arrays and the order of loading casks must be carefully considered in order to meet ALARA goals during cask retrieval. Due to the large area of the aging pad, skyshine must also be included when calculating public and worker doses. The expected length of aging will also necessitate some design adjustments. Under 10 CFR 72.236, DCS systems are initially certified for a period of 20 years [2]. Although the Yucca Mountain facility is not intended to be a storage facility under 10 CFR 72, the operational life of the SNF Aging System is 50 years [1]. Any cask system selected for use in aging will have to be qualified to this design lifetime. These considerations are examined, and a summary is provided of the adaptations that must be made in order to use DCS technologies successfully at a geologic repository.

C. Sanders; D. Kimball

2005-08-02T23:59:59.000Z

69

Utah Commission on Aging June 16, 2009  

E-Print Network [OSTI]

is focusing on fall prevention, end of life care, and elder abuse issues, all of which fall under the auspices Cherie Brunker Health Care Shauna O'Neil Area Agencies on Aging Robert Archuleta Ethnic Minorities Helen-Michele Church Department of Human Services Kent Alderman Legal Profession Gary Kelso Long-Term Care Jo

Tipple, Brett

70

7, 1365313697, 2007 Global mean age of  

E-Print Network [OSTI]

ACPD 7, 13653­13697, 2007 Global mean age of air from MIPAS G. P. Stiller et al. Title Page measurements G. P. Stiller 1 , T. von Clarmann 1 , M. H¨opfner 1 , N. Glatthor 1 , U. Grabowski 1 , S. Kellmann Correspondence to: G. P. Stiller (gabriele.stiller@imk.fzk.de) 13653 #12;ACPD 7, 13653­13697, 2007 Global mean

Paris-Sud XI, Université de

71

Bitcoin and the Age of Bespoke Silicon  

E-Print Network [OSTI]

Bitcoin and the Age of Bespoke Silicon Michael B. Taylor Associate Professor University of California, San Diego #12;This Talk Introduction An Overview of the Bitcoin Cryptocurrency Bitcoin's Computing Evolution Bespoke Silicon #12;Interesting Facts about Bitcoin The most successful digital

Wang, Deli

72

Aging and Place: Building Health Promotion into  

E-Print Network [OSTI]

Aging and Place: Building Health Promotion into Long-Term Care IHRP Brownbag May 21, 2013 Naoko-being in social contexts. ­ To improve quality of services by building health promotion into long-term care. #12 ­ U.S. 3. Building health promotion into long-term care ­ Why important? ­ Challenges

Illinois at Chicago, University of

73

Stone Age Distributed Computing (Extended Abstract)  

E-Print Network [OSTI]

on the first page. Copyrights for components of this work owned by others than ACM must be honored. AbstractingStone Age Distributed Computing (Extended Abstract) Yuval Emek Distributed Computing Group ETH wattenhofer@ethz.ch ABSTRACT A new model that depicts a network of randomized finite state machines operating

74

Aging assessment of auxiliary feedwater systems  

SciTech Connect (OSTI)

A study of Pressurized Water Reactor Auxiliary Feedwater (AFW) Systems has been conducted by Oak Ridge National Laboratory (ORNL) under the auspices of the Nuclear Regulatory Commission's Nuclear Plant Aging Research Program. The study has reviewed historical failure experience and current monitoring practices for the AFW System. This paper provides an overview of the study approach and results. 7 figs.

Casada, D.A. (Oak Ridge National Lab., TN (USA))

1989-01-01T23:59:59.000Z

75

Eligibility: Cancer Survivor ages 35-75  

E-Print Network [OSTI]

Eligibility: · Cancer Survivor ages 35-75 · Patient has completed treatment within last two years for non-metastic solid tumor · Patient's cancer is currently considered stable or in remission · At least. Please contact Missy Buchanan 415-353-7019 for more information. Helen Diller Family Comprehensive Cancer

Walter, Peter

76

Metabolic reprogramming, caloric restriction and aging  

E-Print Network [OSTI]

metabolic response to changes in nutrient availability, energetic demand or redox status. The fact that many the response to altered nutri- ent availability with CR and how the pathways they regulate can retard the aging and has the potential to reveal cellular pathways that are important in directing

Sheridan, Jennifer

77

The 2006 Harvard / Paul F. Glenn Symposium on Aging  

E-Print Network [OSTI]

diseases of aging, such as diabetes, cancer, Alzheimer's and heart disease. A recent study1 concluded

Church, George M.

78

AGES: THE AGN AND GALAXY EVOLUTION SURVEY  

SciTech Connect (OSTI)

The AGN and Galaxy Evolution Survey (AGES) is a redshift survey covering, in its standard fields, 7.7 deg{sup 2} of the Booetes field of the NOAO Deep Wide-Field Survey. The final sample consists of 23,745 redshifts. There are well-defined galaxy samples in 10 bands (the B{sub W} , R, I, J, K, IRAC 3.6, 4.5, 5.8, and 8.0 {mu}m, and MIPS 24 {mu}m bands) to a limiting magnitude of I < 20 mag for spectroscopy. For these galaxies, we obtained 18,163 redshifts from a sample of 35,200 galaxies, where random sparse sampling was used to define statistically complete sub-samples in all 10 photometric bands. The median galaxy redshift is 0.31, and 90% of the redshifts are in the range 0.085 < z < 0.66. Active galactic nuclei (AGNs) were selected as radio, X-ray, IRAC mid-IR, and MIPS 24 {mu}m sources to fainter limiting magnitudes (I < 22.5 mag for point sources). Redshifts were obtained for 4764 quasars and galaxies with AGN signatures, with 2926, 1718, 605, 119, and 13 above redshifts of 0.5, 1, 2, 3, and 4, respectively. We detail all the AGES selection procedures and present the complete spectroscopic redshift catalogs and spectral energy distribution decompositions. Photometric redshift estimates are provided for all sources in the AGES samples.

Kochanek, C. S. [Department of Astronomy, Ohio State University, 140 West 18th Avenue, Columbus, OH 43210 (United States); Eisenstein, D. J.; Caldwell, N.; Jones, C.; Murray, S. S.; Forman, W. R.; Green, P. [Harvard-Smithsonian Center for Astrophysics, 60 Garden Street, Cambridge, MA 02138 (United States); Cool, R. J. [Department of Astrophysical Sciences, Princeton University, Peyton Hall, Princeton, NJ 08544 (United States); Assef, R. J.; Eisenhardt, P.; Stern, D. [Jet Propulsion Laboratory, California Institute of Technology, 4800 Oak Grove Drive, Pasadena, CA 91109 (United States); Jannuzi, B. T.; Dey, A. [NOAO, 950 North Cherry Avenue, Tucson, AZ 85719 (United States); Brown, M. J. I. [School of Physics, Monash University, Clayton, Victoria 3800 (Australia); Gonzalez, A. H. [Department of Astronomy, Bryant Space Science Center, University of Florida, Gainesville, FL 32611 (United States)

2012-05-01T23:59:59.000Z

79

Age-dependent decay in the landscape  

E-Print Network [OSTI]

The picture of the "multiverse" arising in diverse cosmological scenarios involves transitions between metastable vacuum states. It was pointed out by Krauss and Dent that the transition rates decrease at very late times, leading to a dependence of the transition probability between vacua on the age of each vacuum region. I investigate the implications of this non-Markovian, age-dependent decay on the global structure of the spacetime in landscape scenarios. I show that the fractal dimension of the eternally inflating domain is precisely equal to 3, instead of being slightly below 3 in scenarios with purely Markovian, age-independent decay. I develop a complete description of a non-Markovian landscape in terms of a nonlocal master equation. Using this description I demonstrate by an explicit calculation that, under some technical assumptions about the landscape, the probabilistic predictions of our position in the landscape are essentially unchanged, regardless of the measure used to extract these predictions. I briefly discuss the physical plausibility of realizing non-Markovian vacuum decay in cosmology in view of the possible decoherence of the metastable quantum state.

Sergei Winitzki

2007-12-14T23:59:59.000Z

80

On the seismic age of the Sun  

E-Print Network [OSTI]

We use low-degree acoustic modes obtained by the BiSON to estimate the main-sequence age $t_\\odot$ of the Sun. The calibration is accomplished by linearizing the deviations from a standard solar model the seismic frequencies of which are close to those of the Sun. Formally, we obtain the preliminary value $t_\\odot=4.68\\pm0.02 $Gy, coupled with an initial heavy-element abundance $Z=0.0169\\pm0.0005$. The quoted standard errors, which are not independent, are upper bounds implied under the assumption that the standard errors in the observed frequencies are independent.

G. Houdek; D. O. Gough

2007-10-03T23:59:59.000Z

Note: This page contains sample records for the topic "units age age" 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

Rock of Ages | Open Energy Information  

Open Energy Info (EERE)

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 Home5b9fcbce19 No revisionEnvReviewNonInvasiveExplorationUT-g Grant ofRichardton Abbey Wind Farm It is classified asOpenAges Jump

82

AGE UFMG Incubator | Open Energy Information  

Open Energy Info (EERE)

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 Home5b9fcbce19 NoPublic Utilities Address: 160 East 300 SouthWater Rights,Information OfOpen EnergyEnergyAGE UFMG Incubator Jump

83

Microstructural Features in Aged Erbium Tritide Foils  

SciTech Connect (OSTI)

Aged erbium tritide foil specimens are found to contain five distinctly different microstructural features. The general structure was of large columnar grains of ErT2. But on a fine scale, precipitates believed to be erbium oxy-tritides and helium bubbles could be identified. The precipitate size was in the range of ~10 nm and the bubbles were of an unusual planar shape on {111} planes with an invariant thickness of ~1 nm and a diameter on the order of 10 nm. Also, an outer layer containing no fine precipitate structure and only a few helium bubbles was present on foils. This layer is best described as a denuded zone which probably grew during aging in air. Finally, large embedded Er2O3 particles were found at low density and non-uniformly distributed, but sometimes extending through the thickness of the foil. A failure mechanism allowing the helium to escape is suggested by observed cracking between bubbles closer to end of life.

Gelles, David S.; Brewer, L. N.; Kotula, Paul G.; Cowgill, Donald F.; Busick, C. C.; Snow, C. S.

2008-01-01T23:59:59.000Z

84

SEECAL: Program to calculate age-dependent  

SciTech Connect (OSTI)

This report describes the computer program SEECAL, which calculates specific effective energies (SEE) to specified target regions for ages newborn, 1 y, 5 y, 10 y, 15 y, a 70-kg adult male, and a 58-kg adult female. The dosimetric methodology is that of the International Commission on Radiological Protection (ICRP) and is generally consistent with the schema of the Medical Internal Radiation Dose committee of the US Society of Nuclear Medicine. Computation of SEEs is necessary in the computation of equivalent dose rate in a target region, for occupational or public exposure to radionuclides taken into the body. Program SEECAL replaces the program SEE that was previously used by the Dosimetry Research Group at Oak Ridge National Laboratory. The program SEE was used in the dosimetric calculations for occupational exposures for ICRP Publication 30 and is limited to adults. SEECAL was used to generate age-dependent SEEs for ICRP Publication 56, Part 1. SEECAL is also incorporated into DCAL, a radiation dose and risk calculational system being developed for the Environmental Protection Agency. Electronic copies of the program and data files and this report are available from the Radiation Shielding Information Center at Oak Ridge National Laboratory.

Cristy, M.; Eckerman, K.F.

1993-12-01T23:59:59.000Z

85

Age Dating of Mixed SNM--Preliminary Investigations  

SciTech Connect (OSTI)

Recently we investigated the nuclear forensics problem of age determination for mixed special nuclear material (SNM). Through limited computational mixing experiments and interactive age analysis, it was observed that age dating results are generally affected by the mixing of samples with different assays or even by small radioactive material contamination. The mixing and contamination can be detected through interactive age analysis, a function provided by the Decay Interaction, Visualization and Analysis (DIVA) software developed by NSTec. It is observed that for mixed SNM with two components, the age estimators typically fall into two distinct clusters on the time axis. This suggests that averaging or other simple statistical methods may not always be suitable for age dating SNM mixtures. Instead, an interactive age analysis would be more suitable for age determination of material components of such SNM mixtures. This work was supported by the National Center for Nuclear Security (NCNS).

Yuan, D., Guss, P. P., Yfantis, E., Klingensmith, A., Emer, D.

2011-12-01T23:59:59.000Z

86

Managing Aging Effects on Dry Cask Storage Systems for Extended...  

Office of Environmental Management (EM)

Managing Aging Effects on Dry Cask Storage Systems for Extended Long Term Storage and Transportation of Used Fuel Rev0 Managing Aging Effects on Dry Cask Storage Systems for...

87

Characterization of thermal aging of duplex stainless steel by SQUID  

SciTech Connect (OSTI)

Thermal aging is a growing concern for long-term-aged duplex stainless steel piping in nuclear power plants. Superconducting QUantum Interference Device (SQUID) was used for the detection of thermal aging of SUS329 rolled duplex stainless steel and SCS16 cast duplex stainless steel. It was found that the SQUID output signal pattern in the presence of AC magnetic field applied to the specimen was sensitive to the changes in electromagnetic properties due to thermal aging.

Isobe, Y.; Kamimura, A.; Aoki, K.; Nakayasu, F. [Nuclear Fuel Industries, Ltd., Osaka (Japan)

1995-08-01T23:59:59.000Z

88

AGE: a distributed environment for creating interactive animations of graphs  

E-Print Network [OSTI]

com- munication domain. Standard routines, which we shall refer to as the AGE client primitives, that read snd write AGE messages to and from the socket, and routines that create and interpret AGE messages have been developed and are available... for use by those wishing to code a client program (refer to Appendix C). While most requirements for the environment desired are fulfilled by the AGE server, itself, some facilities are supplied by clients, namely, scripts, view broadcasting...

Veatch, Timothy Richard

1990-01-01T23:59:59.000Z

89

The 2008 Harvard / Paul F. Glenn Symposium on Aging  

E-Print Network [OSTI]

of aging such as diabetes, cancer, Alzheimer's and heart disease. Thus, a major goal in the coming years

Church, George M.

90

The 2007 Harvard / Paul F. Glenn Symposium on Aging  

E-Print Network [OSTI]

are regulated, leading to novel medicines to forestall and treat diseases of aging such as diabetes, cancer

Church, George M.

91

The 2009 Harvard / Paul F. Glenn Symposium on Aging  

E-Print Network [OSTI]

of aging such as diabetes, cancer, Alzheimer's and heart disease. Thus, a major goal in the coming years

Church, George M.

92

Virtual Age: Enabling Technologies and Trends Hamid Mahmoodi 1  

E-Print Network [OSTI]

. This much-needed breakthrough manifested itself in the form of the industrial revolution. Industrial revolution signaled the end of the Agricultural Age and moved the human society forward towards the Industrial Age which lasted for about 500 years. In this age, great inventions, such as, the steam engine

Mahmoodi, Hamid

93

FUNCTIONAL ESTIMATION FOR A MULTICOMPONENT AGE REPLACEMENT MODEL  

E-Print Network [OSTI]

1 FUNCTIONAL ESTIMATION FOR A MULTICOMPONENT AGE REPLACEMENT MODEL Pierre L'Ecuyer, Benoit Martin, controlled by a replacement rule based on age thresholds. We show how to estimate the expected cost­ generative simulation, maintenance models, age replacement policies. #12; 2 L'ECUYER, MARTIN, AND V ' AZQUEZ

L'Ecuyer, Pierre

94

FUNCTIONAL ESTIMATION FOR A MULTICOMPONENT AGE REPLACEMENT MODEL  

E-Print Network [OSTI]

FUNCTIONAL ESTIMATION FOR A MULTICOMPONENT AGE REPLACEMENT MODEL Pierre L'Ecuyer, Benoit Martin, controlled by a replacement rule based on age thresholds. We show how to estimate the expected cost­ generative simulation, maintenance models, age replacement policies. #12; L'ECUYER, MARTIN, AND V ' AZQUEZ

V√°zquez-Abad, Felisa J.

95

Dark Energy in the Dark Ages  

E-Print Network [OSTI]

Non-negligible dark energy density at high redshifts would indicate dark energy physics distinct from a cosmological constant or ``reasonable'' canonical scalar fields. Such dark energy can be constrained tightly through investigation of the growth of structure, with limits of \\la2% of total energy density at z\\gg1 for many models. Intermediate dark energy can have effects distinct from its energy density; the dark ages acceleration can be constrained to last less than 5% of a Hubble e-fold time, exacerbating the coincidence problem. Both the total linear growth, or equivalently \\sigma_8, and the shape and evolution of the nonlinear mass power spectrum for zenergy behavior over the entire range z=0-1100.

Eric V. Linder

2006-04-11T23:59:59.000Z

96

Ageing of Natural Rubber under Stress  

E-Print Network [OSTI]

We report a dynamical-mechanical study of stress relaxation at small deformation in a natural (polyisoprene) rubber well above its glass transition temperature Tg. We find that an almost complete relaxation of stress takes place over very long periods of time, even though the elastic network integrity is fully retained. The relaxation rate and the long-time equilibrium modulus are sensitive functions of temperature which do not follow time-temperature superposition. Many characteristic features of non-ergodic ageing response are apparent at both short and very long times. We interpret the observed behaviour in terms of the properties of rubber crosslinks, capable of isomerisation under stress, and relate the results to recent models of soft glassy rheology.

S. M. Clarke; F. Elias; E. M. Terentjev

2000-05-04T23:59:59.000Z

97

Evaluation of aging degradation of structural components  

SciTech Connect (OSTI)

Irradiation embrittlement of the neutron shield tank (NST) A212 Grade B steel from the Shippingport reactor, as well as thermal embrittlement of CF-8 cast stainless steel components from the Shippingport and KRB reactors, has been characterized. Increases in Charpy transition temperature (CTT), yield stress, and hardness of the NST material in the low-temperature low-flux environment are consistent with the test reactor data for irradiations at < 232{degrees}C. The shift in CTT is not as severe as that observed in surveillance samples from the High Flux Isotope Reactor (HFIR): however, it shows very good agreement with the results for HFIR A212-B steel irradiated in the Oak Ridge Research Reactor. The results indicate that fluence rate has not effect on radiation embrittlement at rates as low as 2 {times} 10{sup 8} n/cm{sup 2}{center_dot}s at the low operating temperature of the Shippingport NST, i.e., 55{degrees}C. This suggest that radiation damage in Shippingport NST and HFIR surveillance samples may be different because of the neutron spectra and/or Cu and Ni content of the two materials. Cast stainless steel components show relatively modest decreases in fracture toughness and Charpy-impact properties and a small increase in tensile strength. Correlations for estimating mechanical properties of cast stainless steels predict accurate or slightly conservative values for Charpy-impact energy, tensile flow stress, fracture toughness J-R curve, and J{sub IC} of the materials. The kinetics of thermal embrittlement and degree of embrittlement at saturation, i.e., the minimum impact energy achieved after long-term aging, were established from materials that were aged further in the laboratory. The results were consistent with the estimates. The correlations successfully predict the mechanical properties of the Ringhals 2 reactor hot- and crossover-leg elbows (CF-8M steel) after service of {approx}15 y.

Chopra, O.K.; Shack, W.J.

1992-03-01T23:59:59.000Z

98

Evaluation of aging degradation of structural components  

SciTech Connect (OSTI)

Irradiation embrittlement of the neutron shield tank (NST) A212 Grade B steel from the Shippingport reactor, as well as thermal embrittlement of CF-8 cast stainless steel components from the Shippingport and KRB reactors, has been characterized. Increases in Charpy transition temperature (CTT), yield stress, and hardness of the NST material in the low-temperature low-flux environment are consistent with the test reactor data for irradiations at < 232{degrees}C. The shift in CTT is not as severe as that observed in surveillance samples from the High Flux Isotope Reactor (HFIR): however, it shows very good agreement with the results for HFIR A212-B steel irradiated in the Oak Ridge Research Reactor. The results indicate that fluence rate has not effect on radiation embrittlement at rates as low as 2 {times} 10{sup 8} n/cm{sup 2}{center dot}s at the low operating temperature of the Shippingport NST, i.e., 55{degrees}C. This suggest that radiation damage in Shippingport NST and HFIR surveillance samples may be different because of the neutron spectra and/or Cu and Ni content of the two materials. Cast stainless steel components show relatively modest decreases in fracture toughness and Charpy-impact properties and a small increase in tensile strength. Correlations for estimating mechanical properties of cast stainless steels predict accurate or slightly conservative values for Charpy-impact energy, tensile flow stress, fracture toughness J-R curve, and J{sub IC} of the materials. The kinetics of thermal embrittlement and degree of embrittlement at saturation, i.e., the minimum impact energy achieved after long-term aging, were established from materials that were aged further in the laboratory. The results were consistent with the estimates. The correlations successfully predict the mechanical properties of the Ringhals 2 reactor hot- and crossover-leg elbows (CF-8M steel) after service of {approx}15 y.

Chopra, O.K.; Shack, W.J.

1992-03-01T23:59:59.000Z

99

Aging management guideline for commercial nuclear power plants - heat exchangers  

SciTech Connect (OSTI)

This Aging Management Guideline (AMG) describes recommended methods for effective detection and mitigation of age-related degradation mechanisms in commercial nuclear power plant heat exchangers important to license renewal. The intent of this AMG is to assist plant maintenance and operations personnel in maximizing the safe, useful life of these components. It also supports the documentation of effective aging management programs required under the License Renewal Rule 10 CFR 54. This AMG is presented in a manner that allows personnel responsible for performance analysis and maintenance to compare their plant-specific aging mechanisms (expected or already experienced) and aging management program activities to the more generic results and recommendations presented herein.

Booker, S.; Lehnert, D.; Daavettila, N.; Palop, E.

1994-06-01T23:59:59.000Z

100

LIGA microsystems aging : evaluation and mitigation.  

SciTech Connect (OSTI)

The deployment of LIGA structures in DP applications requires a thorough understanding of potential long term physical and chemical changes that may occur during service. While these components are generally fabricated from simple metallic systems such as copper, nickel and nickel alloys, the electroplating process used to form them creates microstructural features which differ from those found in conventional (e.g. ingot metallurgy) processing of such materials. Physical changes in non-equilibrium microstructures may occur due to long term exposure to temperatures sufficient to permit atomic and vacancy mobility. Chemical changes, particularly at the surfaces of LIGA parts, may occur in the presence of gaseous chemical species (e.g. water vapor, HE off-gassing compounds) and contact with other metallic structures. In this study, we have characterized the baseline microstructure of several nickel-based materials that are used to fabricate LIGA structures. Solute content and distribution was found to have a major effect on the electroplated microstructures. Microstructural features were correlated to measurements of hardness and tensile strength. Dormancy testing was conducted on one of the baseline compositions, nickel-sulfamate. Groups of specimens were exposed to controlled thermal cycles; subsequent examinations compared properties of 'aged' specimens to the baseline conditions. Results of our testing indicate that exposure to ambient temperatures (-54 C to 71 C) do not result in microstructural changes that might be expected to significantly effect mechanical performance. Additionally, no localized changes in surface appearance were found as a result of contact between electroplated parts.

Cadden, Charles H.; Yang, Nancy Y. C.; San Marchi, Christopher W.

2003-12-01T23:59:59.000Z

Note: This page contains sample records for the topic "units age age" 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

E-Print Network 3.0 - aging glassy systems Sample Search Results  

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

shear melting and aging experiments... was the first to term this phenomenon as phy- sical aging 26, 29, 30. Aging in glassy materials contin- ues... at that tempera-...

102

Chelation: A Fundamental Mechanism of Action of AGE Inhibitors, AGE Breakers, and Other Inhibitors of Diabetes Complications  

SciTech Connect (OSTI)

Advanced glycation or glycoxidation end-products (AGE) increase in tissue proteins with age, and their rate of accumulation is increased in diabetes, nephropathy and inflammatory diseases. AGE inhibitors include a range of compounds that are proposed to act by trapping carbonyl and dicarbonyl intermediates in AGE formation. However, some among the newer generation of AGE inhibitors lack reactive functional groups that would trap reaction intermediates, indicating an alternative mechanism of action. We propose that AGE inhibitors function primarily as chelators, inhibiting metal-catalyzed oxidation reactions. The AGE-inhibitory activity of angiotensin-converting enzyme inhibitors and angiotensin receptor blockers is also consistent with their chelating activity. Finally, compounds described as AGE breakers, or their hydrolysis products, also have strong chelating activity, suggesting that these compounds also act through their chelating activity. We conclude that chelation is the common, and perhaps the primary, mechanism of action of AGE inhibitors and breakers, and that chronic, mild chelation therapy should prove useful in treatment of diabetes and age-related diseases characterized by oxidative stress, inflammation and increased chemical modification of tissue proteins by advanced glycoxidation and lipoxidation end-products.

Nagai, Rhoji; Murray, David B.; Metz, Thomas O.; Baynes, John

2012-03-01T23:59:59.000Z

103

age children group: Topics by E-print Network  

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

surface area, and thickness measures were obtained. Anxiety symptoms were 22 Tackling Dyslexia at an Early Age esearchers at HMS and Boston Children's Biology and Medicine Websites...

104

aged children hbsc: Topics by E-print Network  

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

surface area, and thickness measures were obtained. Anxiety symptoms were 13 Tackling Dyslexia at an Early Age esearchers at HMS and Boston Children's Biology and Medicine Websites...

105

age children preliminary: Topics by E-print Network  

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

surface area, and thickness measures were obtained. Anxiety symptoms were 17 Tackling Dyslexia at an Early Age esearchers at HMS and Boston Children's Biology and Medicine Websites...

106

age tumor size: Topics by E-print Network  

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

alternate body arches, fin cartilage 422 AGE AND GROWTH OF SKIPJACK TUNA, KATSUWONUS PELAMIS, AND YELLOWFIN TUNA, THUNNUS ALBACARES, AS INDICATED Environmental Sciences and...

107

Influence of Aging and Environment on Nanoparticle Chemistry...  

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

of cerium in cerium oxide nanoparticles is studied in detail. The influence of synthesis medium, aging time and local environment on the oxidation state switching, between +3 and...

108

aged patients usefulness: Topics by E-print Network  

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

(6-month old, 12-month old, and adult) based on auditory event-related potentials Reilly, James P. 34 USING OBJECTIVE CRITERIA AND MULTIPLE REGRESSION MODELS FOR AGE...

109

Successful cognitive aging in persons living with HIV infection  

E-Print Network [OSTI]

medical evaluations. Successful cognitive aging (SCA) wasby a battery of well- validated cognitive tests andself-endorsed cognitive com- plaints. Thirty-two percent of

2011-01-01T23:59:59.000Z

110

accelerated aging studies: Topics by E-print Network  

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

the nominal one, increasing background and pile-up event probability. This requires detector performances which are currently under study in intensive R&D activities. Aging is...

111

age spectrum epidemiology: Topics by E-print Network  

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

of a young supernova. We associate this break with the phenomenon of synchrotron aging of radiating electrons. From the break in the spectrum we calculate the magnetic field...

112

age experimental analysis: Topics by E-print Network  

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

Websites Summary: , by improving the seismic hazard evaluation using probabilistic seismic hazard assessment (PSHA) methodsSeismic vulnerability assessment to slight dam- age...

113

The Work of Art in the Age of Deindustrialization  

E-Print Network [OSTI]

Deindustrialization By Jasper Quentin Bernes A dissertationof Deindustrialization by Jasper Quentin Bernes Doctor ofAge of Deindustrialization Jasper Bernes i Acknowledgments

Bernes, Jasper

2012-01-01T23:59:59.000Z

114

An Accelerated Aging Method for Diesel Exhaust Aftertreatment...  

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

for Diesel Aftertreatment Devices Impact of Fuel Metal Impurities on Diesel Exhaust Catalysts Rapid Aging Protocols for Diesel Aftertreatment Devices: NOx Abatement Catalysts...

115

Empowering Communities in the Age of E-Government | Department...  

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

in the Age of E-Government (March 2006) More Documents & Publications Technology Transfer for Brownfields Redevelopment Project Environmental Justice and Public...

116

Strategy for Aging Tests of Fuel Cell Membranes (Presentation...  

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

Aging Tests Advanced Post Mortem Analysis Concluding Remarks Radiation Grafted Fuel Cell Membranes Lorenz Gubler, Paul Scherrer Institut, 2007 HTWG Meeting @ 212th ECS...

117

aged adults: Topics by E-print Network  

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

The "Aging in Place" project strives to delay taking that first step away from the family home. Through the careful placement of technological support we believe older...

118

age shetland implications: Topics by E-print Network  

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

initial pricing of this program are not included--see below; all land and water transportation; airport Rowley, Clarence W. 111 Supercomputing Comes of Age Computer Technologies...

119

Aging Impairs Myocardial Fatty Acid and Ketone Oxidation and...  

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

that aging modifies substrate utilization and alters insulin sensitivity in mouse heart when provided multiple substrates. In vivo cardiac function was measured with...

120

Microsoft Word - CASS_Aging-LWRS_5YR_Plan  

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

LTR-2012440 Light Water Reactor Sustainability Cast Stainless Steel Aging Research Plan September 2012 Prepared by: T. S. Byun and J. T. Busby Oak Ridge National Laboratory This...

Note: This page contains sample records for the topic "units age age" 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

Investigation of Aging Mechanisms in Lean NOx Traps  

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

Annual Merit Review 1 Investigation of Aging Mechanisms in Lean NOx Traps Mark Crocker Center for Applied Energy Research, University of Kentucky May 20, 2009 This presentation...

122

aging colloidal glass: Topics by E-print Network  

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

Matter (arXiv) Summary: We use confocal microscopy to directly visualize the dynamics of aging colloidal glasses. We prepare a colloidal suspension at high density, a...

123

Theoretical foundation for measuring the groundwater age distribution.  

SciTech Connect (OSTI)

In this study, we use PFLOTRAN, a highly scalable, parallel, flow and reactive transport code to simulate the concentrations of 3H, 3He, CFC-11, CFC-12, CFC-113, SF6, 39Ar, 81Kr, 4He and themean groundwater age in heterogeneous fields on grids with an excess of 10 million nodes. We utilize this computational platform to simulate the concentration of multiple tracers in high-resolution, heterogeneous 2-D and 3-D domains, and calculate tracer-derived ages. Tracer-derived ages show systematic biases toward younger ages when the groundwater age distribution contains water older than the maximum tracer age. The deviation of the tracer-derived age distribution from the true groundwater age distribution increases with increasing heterogeneity of the system. However, the effect of heterogeneity is diminished as the mean travel time gets closer the tracer age limit. Age distributions in 3-D domains differ significantly from 2-D domains. 3D simulations show decreased mean age, and less variance in age distribution for identical heterogeneity statistics. High-performance computing allows for investigation of tracer and groundwater age systematics in high-resolution domains, providing a platform for understanding and utilizing environmental tracer and groundwater age information in heterogeneous 3-D systems. Groundwater environmental tracers can provide important constraints for the calibration of groundwater flow models. Direct simulation of environmental tracer concentrations in models has the additional advantage of avoiding assumptions associated with using calculated groundwater age values. This study quantifies model uncertainty reduction resulting from the addition of environmental tracer concentration data. The analysis uses a synthetic heterogeneous aquifer and the calibration of a flow and transport model using the pilot point method. Results indicate a significant reduction in the uncertainty in permeability with the addition of environmental tracer data, relative to the use of hydraulic measurements alone. Anthropogenic tracers and their decay products, such as CFC11, 3H, and 3He, provide significant constraint oninput permeability values in the model. Tracer data for 39Ar provide even more complete information on the heterogeneity of permeability and variability in the flow system than the anthropogenic tracers, leading to greater parameter uncertainty reduction.

Gardner, William Payton; Arnold, Bill Walter

2014-01-01T23:59:59.000Z

124

E-Print Network 3.0 - age structured equations Sample Search...  

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

ageing may result in biases in stock assessments and Summary: recapture and known-age data. As with Equation 1, for a given true age b, the bias (b) of the observed age... to...

125

The Cognitive Aging and Neuroimaging (CAN) Lab The Cognitive Aging and Neuroimaging (CAN)Lab investigates the development of both cognitive and neural processes associated  

E-Print Network [OSTI]

The Cognitive Aging and Neuroimaging (CAN) Lab Overview: The Cognitive Aging and Neuroimaging (CAN)Lab investigates the development of both cognitive and neural processes associated with aging -with a focus on ageMRI to elucidate the cognitive and neural processes underlying age-related differences in cognitive control

Bj√łrnstad, Ottar Nordal

126

Colored figures Franke & Gaser (2012): Longitudinal changes in individual BrainAGE in healthy aging, mild cognitive impairment, and Alzheimer's disease  

E-Print Network [OSTI]

Colored figures Franke & Gaser (2012): Longitudinal changes in individual BrainAGE in healthy aging, mild cognitive impairment, and Alzheimer's disease Figure 1: Depiction of the BrainAGE concept. A: The model of healthy brain aging is trained with the chronological age and preprocessed structural MRI data

Gaser, Christian

127

The effect of chrome adhesion layer on quartz resonator aging.  

SciTech Connect (OSTI)

This SAND report documents a late start LDRD designed to determine the possible aging effects of a quartz resonator gold adhesion layer. Sandia uses quartz resonators for applications. These applications require a very stable frequency source with excellent aging (low drift) characteristics. These parts are manufactured by one of our qualified vendors outside Sandia Laboratories, Statek Corp. Over the years we, Sandia and the vendor, have seen aging variations that have not been completely explained by the typical mechanisms known in the industry. One theory was that the resonator metallization may be contributing to the resonator aging. This LDRD would allow us to test and analyze a group of resonators with known differentiating metallization and via accelerated aging determine if a chrome adhesion layer used to accept the final gold plating may contribute to poor aging. We worked with our main vendor to design and manufacture a set of quartz resonators with a wide range of metallization thickness ratios between the chrome and gold that will allow us determine the cause of this aging and which plating thickness ratios provide the best aging performance while not degrading other key characteristics.

Wessendorf, Kurt O.; Ohlhausen, James Anthony

2011-03-01T23:59:59.000Z

128

Communicating Coastal Risk Analysis in an Age of Climate Change  

E-Print Network [OSTI]

Communicating Coastal Risk Analysis in an Age of Climate Change TR-11-04 Brian Blanton, John Mc in an Age of Climate Change Brian Blanton, John McGee, Oleg Kapeljushnik Renaissance Computing Institute of climate change complicates matters further. An immersive visualization environment integrating data from

129

aging materials: Topics by E-print Network  

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

aging materials First Page Previous Page 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 Next Page Last Page Topic Index 1 Ageing and Rheology in Soft Materials...

130

International Trade in Natural Gas: Golden Age of LNG?  

E-Print Network [OSTI]

International Trade in Natural Gas: Golden Age of LNG? Yichen Du and Sergey Paltsev Report No. 271;1 International Trade in Natural Gas: Golden Age of LNG? Yichen Du* and Sergey Paltsev* Abstract The introduction of liquefied natural gas (LNG) as an option for international trade has created a market for natural gas where

Gabrieli, John

131

Revised isotopic (40 Ar) age for the lamproite volcano of  

E-Print Network [OSTI]

Revised isotopic (40 Ar/39 Ar) age for the lamproite volcano of Cabezos Negros, Fortuna Basin (lamproites) of the Fortuna Basin in southeast Spain. This age is significantly older than earlier reported K. Because the volcanic rocks are intercalated in the stratigraphic sequence of the Fortuna Basin directly

Utrecht, Universiteit

132

THE ROLE OF AGING AND ONCE-THROUGH-COOLED POWER  

E-Print Network [OSTI]

CALIFORNIA ENERGY COMMISSION THE ROLE OF AGING AND ONCE-THROUGH-COOLED POWER PLANTS IN CALIFORNIA Nyberg, Darryl Metz, Connie Leni. 2009. The Role of Aging and Once-Through-Cooled Power Plants .......................................9 The Performance of Once-Through-Cooled Power Plants 2002

133

Microscopic histochemical changes associated with aging in the feline kidney  

E-Print Network [OSTI]

, 13). This activity increased at one year of age to a moderate level and at 3 years to a high level of activity. A slight non-significant increase in activity was apparent from 5. 5 to 7. 5 years of age (Fig. 14). Aldolase N*-* tive l~omo t...

Kaler, Lawrence William

1975-01-01T23:59:59.000Z

134

Preserved lignin structures in Miocene-aged lignite lithotypes, Bulgaria  

E-Print Network [OSTI]

Preserved lignin structures in Miocene-aged lignite lithotypes, Bulgaria M. Stefanova, O. Maman, B, Orleans Cedex 2, France Abstract Contents of preserved lignin structures in Miocene-aged lignite lithotypes were determined. Phenol aldehydes, ketones and acids released from lignin by CuO oxidative

Paris-Sud XI, Université de

135

Aging management guideline for commercial nuclear power plants-pumps  

SciTech Connect (OSTI)

This Aging Management Guideline (AMG) describes recommended methods for effective detection and mitigation of age-related degradation mechanisms in BWR and PWR commercial nuclear power plant pumps important to license renewal. The intent of this AMG is to assist plant maintenance and operations personnel in maximizing the safe, useful life of these components. It also supports the documentation of effective aging management programs required under the License Renewal Rule 10 CFR Part 54. This AMG is presented in a manner that allows personnel responsible for performance analysis and maintenance to compare their plant-specific aging mechanisms (expected or already experienced) and aging management program activities to the more generic results and recommendations presented herein.

Booker, S.; Katz, D.; Daavettila, N.; Lehnert, D. [MDC-Ogden Environmental and Energy Services, Southfield, MI (United States)

1994-03-01T23:59:59.000Z

136

Users, technology and space in libraries in the digital age  

E-Print Network [OSTI]

This thesis is a user research study of emerging issues in the use of libraries as public spaces and as information repositories in the digital age. Till recently strong physicality was attached to the library with the ...

G-Chandorkar, Tripti (Gore-Chandorkar)

2005-01-01T23:59:59.000Z

137

Aging effects on oil-contaminated Kuwaiti sand  

SciTech Connect (OSTI)

Large quantities of oil-contaminated sands resulted from the destruction of oil wells and the formation of oil lakes in Kuwait at the end of the Gulf Wa/r. A laboratory testing program was carried out to determine the geotechnical properties of this material and the effect of aging on their properties. Tests included direct shear, triaxial, and consolidation tests on clean and contaminated sand at the same relative density. The influence of aging was examined by testing uncontaminated sand after aging for one, three, and six months in natural environmental conditions. The results indicated increased strength and stiffness due to aging and a reduction of the oil content due to evaporation of volatile compounds. The factors that influence the depth of oil penetration in compacted sand columns were also examined including the type of oil, relative density, and the amount of fines.

Al-Sanad, H.A.; Ismael, N.F. [Kuwait Univ., Safat (Kuwait). Dept. of Civil Engineering

1997-03-01T23:59:59.000Z

138

Enzyme Structure Provides Insights into Cancer and Aging  

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

Enzyme Structure Provides Insights into Cancer and Aging Print XPD helicase is an enzyme that unwinds the DNA double helix; it is one component of an essential repair mechanism...

139

administration normative aging: Topics by E-print Network  

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

U.S:pr.aoa.dhhs.govaoastatsaging21demography.html . Administration on Aging. 1999. Profile of Older Americans: 1999. U.S. Department:pr.aoa.dhhs.govaoastatsprofile...

140

Health, Ageing and Ethnicity: A Retrospective and Prospects  

E-Print Network [OSTI]

Health, Ageing and Ethnicity: A Retrospective and Prospects Naina Patel, PhD. Dr. Patel called Minority Elderly Care (MEC) under the EC 5th Framework Research Programme. Formerly the UK

Note: This page contains sample records for the topic "units age age" 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

Figure 2. Stratigraphic Summary of Ages, Names and Rock Types...  

Gasoline and Diesel Fuel Update (EIA)

2. Stratigraphic Summary of Ages, Names and Rock Types in the ANWR 1002 and Coastal Plain Area of the Alaska North Slope. Potentially Productive Reservoirs and Plays Assessed by...

142

Cognitive training in schizophrenia: golden age or wild west?  

E-Print Network [OSTI]

Golden Age or Wild West? Sophia Vinogradov, Melissa Fisher,Address correspondence to Sophia Vinogradov, M.D. , 116AĖFrancisco, CA 94121; E-mail: sophia. vinogradov@ucsf.edu.

Vinogradov, Sophia

2013-01-01T23:59:59.000Z

143

age infant sex: Topics by E-print Network  

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

old, 12-month old, and adult) based on auditory event-related potentials Reilly, James P. 13 RESEARCH ARTICLE Open Access Sex-related differences and age of peak Physics...

144

advancing age potential: Topics by E-print Network  

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

old, 12-month old, and adult) based on auditory event-related potentials Reilly, James P. 10 Paradoxical down?regulation of p16 INK4a mRNA with advancing age in Acute...

145

aging decreases expression: Topics by E-print Network  

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

interacting sensory stimuli... Duncan, Nikki 2013-03-13 35 Analysis of Telomere Length in the Aged mdx Diaphragm with and without Transgenic IGF-I Expression CiteSeer...

146

The Effects of Ageing on Memory and Thinking†  

E-Print Network [OSTI]

The main aim of the present study is to examine the effects of ageing on memory and thinking by examining verbal fluency performance. More specifically looking at the differences between older and younger people, to ...

Ford, Amanda

2007-01-01T23:59:59.000Z

147

Determining Remaining Useful Life of Aging Cables in Nuclear...  

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

3624 Determining Remaining Useful Life of Aging Cables in Nuclear Power Plants - Interim Status for FY2014 Milestone Report M3LW-140R04022 September 2014 KL Simmons AM Jones LS...

148

ageing electronic systems: Topics by E-print Network  

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

a time, due to changes in the load current and due to ageing. The calorimeter light emitting diode (LED) monitoring system has been developed to monitor the PMT gain over time...

149

r Journalof Geology LATE ARCHEAN ZIRCON AGES 419  

E-Print Network [OSTI]

sows t at t e popu a Ion 0 zIrcons in the banded granulite Ch Zr I, which record ages 238UfO6Pb at 2622

Mojzsis, Stephen J.

150

Space-Age Ceramics Get Their Toughest Test  

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

operational temperatures projected for hypersonic jet and next-generation gas-turbine engines, but real-time analysis of the mechanical properties of these space-age materials at...

151

System to estimate ages and redshifts for radio galaxies  

E-Print Network [OSTI]

The system allowing a user to operate with simulated curves of spectral energy distribution (SED) and to estimate ages and redshifts by photometric data at server {\\bf sed.sao.ru} is described.

O. V. Verkhodanov; A. I. Kopylov; N. V. Verkhodanova; O. P. Zhelenkova; V. N. Chernenkov; Yu. N. Parijskij; N. S. Soboleva; A. V. Temirova

2001-12-06T23:59:59.000Z

152

Solar System impact rates measured from lunar spherule ages  

E-Print Network [OSTI]

. The samples were irradiated with fast neutrons for 100 hours at the Oregon State University Reactor. Each measured using a MAP 215-C noble gas mass spectrometer. Spherule ages were determined using the 40 Ar/39 Ar

Muller, Richard A.

153

ageing seed pools: Topics by E-print Network  

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

of the methods, expense, and logistics of sample collection. The ability to inventory wild populations would be greatly expanded if pooled adult age-class data (e.g.,...

154

Helena Petrovna Blavatsky: missionary to the gilded age  

E-Print Network [OSTI]

HELENA PETROVNA BLAVATSKY: MISSIONARY TO THE GILDED AGE A Thesis by MARJORIE JO NEELY Submitted to the Graduate College of Texas AiM Vniversity in partial fulfillment of the requirement for the degree of MASTER OF ARTS August 1977 Major... Subject: History HELENA PETROVNA BLAVATSKY: MISSIONARY TO THE GILDED AGE A Thesis MARJORIE JO NEELY Approved as to style and content by: Cha rman o Commit ee H o epar en Mem er m er August 1977 ABSTRACT Helena Petrovna Blavatsky: Missionary...

Neely, Marjorie Jo

1977-01-01T23:59:59.000Z

155

Age characteristics in a multidecadal Arctic sea ice simulation  

SciTech Connect (OSTI)

Results from adding a tracer for age of sea ice to a sophisticated sea ice model that is widely used for climate studies are presented. The consistent simulation of ice age, dynamics, and thermodynamics in the model shows explicitly that the loss of Arctic perennial ice has accelerated in the past three decades, as has been seen in satellite-derived observations. Our model shows that the September ice age average across the Northern Hemisphere varies from about 5 to 8 years, and the ice is much younger (about 2--3 years) in late winter because of the expansion of first-year ice. We find seasonal ice on average comprises about 5% of the total ice area in September, but as much as 1.34 x 10{sup 6} km{sup 2} survives in some years. Our simulated ice age in the late 1980s and early 1990s declined markedly in agreement with other studies. After this period of decline, the ice age began to recover, but in the final years of the simulation very little young ice remains after the melt season, a strong indication that the age of the pack will again decline in the future as older ice classes fail to be replenished. The Arctic ice pack has fluctuated between older and younger ice types over the past 30 years, while ice area, thickness, and volume all declined over the same period, with an apparent acceleration in the last decade.

Hunke, Elizabeth C [Los Alamos National Laboratory; Bitz, Cecllia M [UNIV. OF WASHINGTON

2008-01-01T23:59:59.000Z

156

Age determination of the HR8799 planetary system using asteroseismology  

E-Print Network [OSTI]

Discovery of the first planetary system by direct imaging around HR8799 has made the age determination of the host star a very important task. This determination is the key to derive accurate masses of the planets and to study the dynamical stability of the system. The age of this star has been estimated using different procedures. In this work we show that some of these procedures have problems and large uncertainties, and the real age of this star is still unknown, needing more observational constraints. Therefore, we have developed a comprehensive modeling of HR8799, and taking advantage of its gamma Doradus-type pulsations, we have estimated the age of the star using asteroseismology. The accuracy in the age determination depends on the rotation velocity of the star, and therefore an accurate value of the inclination angle is required to solve the problem. Nevertheless, we find that the age estimate for this star previously published in the literature ([30,160] Myr) is unlikely, and a more accurate value ...

Moya, A; Barrado, D; HernŠndez, A GarcŪa; Aberasturi, M; Montesinos, B; Aceituno, F

2010-01-01T23:59:59.000Z

157

Vulnerability of age-0 pallid sturgeon Scaphirhynchus albus to fish predation By W. E. French1  

E-Print Network [OSTI]

and smallmouth bass is low, especially in the presence of an alternative fish prey. Introduction SturgeonVulnerability of age-0 pallid sturgeon Scaphirhynchus albus to fish predation By W. E. French1 , B, Brookings, SD, USA; 2 USGS South Dakota Cooperative Fish & Wildlife Research Unit, Department of Wildlife

158

Constraints on the cosmic equation of state: age conflict versus phantom energy. Age-redshift relations in an accelerated universe  

E-Print Network [OSTI]

The currently available values and confidence limits for Omega_m0, H_0 and globular cluster ages still indicate that the dark energy that dominates the Universe could also be a form of quintessence or phantom energy. In fact, current cosmological values favor phantom energy. To increase the likelihood of a cosmological constant as dark energy instead of phantom energy, the possibilities seem to lie in reducing globular cluster ages, the Hubble constant, or both, and possibly advancing the epoch of globular cluster formation. For a set of possible dark energy equations of state that includes the cosmological constant, quintessence or phantom energy, age-redshift analytical expressions for null curvature universes that include ordinary matter are derived together with the corresponding ages for these universes.

J. Cepa

2004-03-26T23:59:59.000Z

159

Managing aging in nuclear power plants: Insights from NRC maintenance team inspection reports  

SciTech Connect (OSTI)

A plant`s maintenance program is the principal vehicle through which age-related degradation is managed. From 1988 to 1991, the NRC evaluated the maintenance program of every nuclear power plant in the United States. Forty-four out of a total of 67 of the reports issued on these in-depth team inspections were reviewed for insights into the strengths and weaknesses of the programs as related to the need to understand and manage the effects of aging on nuclear plant systems, structures, and components. Relevant information was extracted from these inspection reports and sorted into several categories, including Specific Aging Insights, Preventive Maintenance, Predictive Maintenance and Condition Monitoring, Post Maintenance Testing, Failure Trending, Root Cause Analysis and Usage of Probabilistic Risk Assessment in the Maintenance Process. Specific examples of inspection and monitoring techniques successfully used by utilities to detect degradation due to aging have been identified. The information also was sorted according to systems and components, including: Auxiliary Feedwater, Main Feedwater, High Pressure Injection for both BWRs and PWRs, Service Water, Instrument Air, and Emergency Diesel Generator Air Start Systems, and Emergency Diesel Generators Air Start Systems, emergency diesel generators, electrical components such as switchgear, breakers, relays, and motor control centers, motor operated valves and check valves. This information was compared to insights gained from the Nuclear Plant Aging Research (NPAR) Program. Attributes of plant maintenance programs where the NRC inspectors felt that improvement was needed to properly address the aging issue also are discussed.

Fresco, A.; Subudhi, M.; Gunther, W.; Grove, E.; Taylor, J. [Brookhaven National Lab., Upton, NY (United States)

1993-12-01T23:59:59.000Z

160

COMPONENT DEGRADATION SUSCEPTIBILITIES AS THE BASES FOR MODELING REACTOR AGING RISK  

SciTech Connect (OSTI)

The extension of nuclear power plant operating licenses beyond 60 years in the United States will be necessary if we are to meet national energy needs while addressing the issues of carbon and climate. Characterizing the operating risks associated with aging reactors is problematic because the principal tool for risk-informed decision-making, Probabilistic Risk Assessment (PRA), is not ideally-suited to addressing aging systems. The components most likely to drive risk in an aging reactor - the passives - receive limited treatment in PRA, and furthermore, standard PRA methods are based on the assumption of stationary failure rates: a condition unlikely to be met in an aging system. A critical barrier to modeling passives aging on the wide scale required for a PRA is that there is seldom sufficient field data to populate parametric failure models, and nor is there the availability of practical physics models to predict out-year component reliability. The methodology described here circumvents some of these data and modeling needs by using materials degradation metrics, integrated with conventional PRA models, to produce risk importance measures for specific aging mechanisms and component types. We suggest that these measures have multiple applications, from the risk-screening of components to the prioritization of materials research.

Unwin, Stephen D.; Lowry, Peter P.; Toyooka, Michael Y.

2010-07-18T23:59:59.000Z

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While these samples are representative of the content of NLEBeta,
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to obtain the most current and comprehensive results.


161

Hydraulic limitation not declining nitrogen availability causes the age-related photosynthetic decline in loblolly  

E-Print Network [OSTI]

Hydraulic limitation not declining nitrogen availability causes the age-related photosynthetic capacity and thus decreases GPP with increasing age; and (2) hydraulic limitations increasingly induce conservative with age. We conclude that hydraulic limitation increasingly limits the photosyn- thetic rates

DeLucia, Evan H.

162

E-Print Network 3.0 - ageing Sample Search Results  

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

Advanced Search Sample search results for: ageing Page: << < 1 2 3 4 5 > >> 1 Errors in fish ageing may result in biases in stock assessments and Summary: 256 Errors in fish ageing...

163

E-Print Network 3.0 - age Sample Search Results  

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

Advanced Search Sample search results for: age Page: << < 1 2 3 4 5 > >> 1 Errors in fish ageing may result in biases in stock assessments and Summary: 256 Errors in fish ageing...

164

E-Print Network 3.0 - aging Sample Search Results  

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

Advanced Search Sample search results for: aging Page: << < 1 2 3 4 5 > >> 1 Errors in fish ageing may result in biases in stock assessments and Summary: 256 Errors in fish ageing...

165

E-Print Network 3.0 - aged Sample Search Results  

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

Advanced Search Sample search results for: aged Page: << < 1 2 3 4 5 > >> 1 Errors in fish ageing may result in biases in stock assessments and Summary: 256 Errors in fish ageing...

166

The impact of minimum age of employment regulation on child labor and schooling  

E-Print Network [OSTI]

Promoting minimum age of employment regulation has been a centerpiece in child labor policy for the last 15 years. If enforced, minimum age regulation would change the age profile of paid child employment. Using micro-data ...

Edmonds, Eric V

167

Environmental and age effects on methylation changes in human brain and blood cells  

E-Print Network [OSTI]

Previous studies have shown that DNA methylation may 1 e associated with disease, aging, the rate of aging and genetics. In this thesis, age is accurately predicted from DNA methylation in brain and blood tissues using two ...

Giguzinsky, Orit

2014-01-01T23:59:59.000Z

168

Aging management of containment structures in nuclear power plants  

SciTech Connect (OSTI)

Research is being conducted by ORNL under US Nuclear Regulatory Commission (USNRC) sponsorship to address aging management of nuclear power plant containment and other safety-related structures. Documentation is being prepared to provide the USNRC with potential structural safety issues and acceptance criteria for use in continued service evaluations of nuclear power plants. Accomplishments include development of a Structural Materials Information Center containing data and information on the time variation of 144 material properties under the influence of pertinent environmental stressors or aging factors, evaluation of models for potential concrete containment degradation factors, development of a procedure to identify critical structures and degradation factors important to aging management, evaluations of nondestructive evaluation techniques. assessments of European and North American repair practices for concrete, review of parameters affecting corrosion of metals embedded in concrete, and development of methodologies for making current condition assessments and service life predictions of new or existing reinforced concrete structures in nuclear power plants.

Naus, D.J.; Oland, C.B. [Oak Ridge National Lab., TN (United States); Ellingwood, B.R. [The Johns Hopkins Univ., Baltimore, MD (United States); Graves, H.L. III; Norris, W.E. [US Nuclear Regulatory Commission, Washington, DC (United States)

1994-12-31T23:59:59.000Z

169

Aging of steel containments and liners in nuclear power plants  

SciTech Connect (OSTI)

Aging of the containment pressure boundary in light water reactor plants is being addressed to understand the significant factors relating occurrence of corrosion efficacy of inspection and structural capacity reduction of steel containments and liners of concrete containments. and to make recommendations on use of risk models in regulatory decisions. Current regulatory in-service inspection requirements are reviewed and a summary of containment related degradation experience is presented. Current and emerging nondestructive examination techniques and a degradation assessment methodology for characterizing and quantifying the amount of damage present are described. Quantitative tools for condition assessment of aging structures using time dependent structural reliability analysis methods are summarized. Such methods provide a framework for addressing the uncertainties attendant to aging in the decision process. Results of this research provide a means for establishing current and estimating future structural capacity margins of containments, and to address the significance of incidences of reported containment degradation.

Naus, D.J.; Oland, C.B. [Oak Ridge National Lab., TN (United States). Engineering Technology Div.; Ellingwood, B. [Johns Hopkins Univ., Baltimore, MD (United States). Dept. of Civil Engineering; Norris, W.E. [Nuclear Regulatory Commission, Washington, DC (United States). Office of Nuclear Regulatory Research

1998-01-01T23:59:59.000Z

170

Organic tanks safety program FY96 waste aging studies  

SciTech Connect (OSTI)

Uranium and plutonium production at the Hanford Site produced large quantities of radioactive by-products and contaminated process chemicals, which are stored in underground tanks awaiting treatment and disposal. Having been made strongly alkaline and then subjected to successive water evaporation campaigns to increase storage capacity, the wastes now exist in the physical forms of salt cakes, metal oxide sludges, and partially saturated aqueous brine solutions. The tanks that contain organic process chemicals mixed with nitrate/nitrite salt wastes may be at risk for fuel- nitrate combustion accidents. The purpose of the Waste Aging Task is to elucidate how chemical and radiological processes will have aged or degraded the organic compounds stored in the tanks. Ultimately, the task seeks to develop quantitative measures of how aging changes the energetic properties of the wastes. This information will directly support efforts to evaluate the hazard as well as to develop potential control and mitigation strategies.

Camaioni, D.M.; Samuels, W.D.; Linehan, J.C.; Clauss, S.A.; Sharma, A.K.; Wahl, K.L.; Campbell, J.A.

1996-10-01T23:59:59.000Z

171

Age correlation of petroleum of unknown source using biological markers  

SciTech Connect (OSTI)

Determination of age constraints on petroleums from unknown sources provides a means of choosing among possible source rock candidates, predicting migration scenarios for oil, and determining the timing of its emplacement in the reservoir. A number of parameters used to assign such age constraints to petroleum have been suggested by geochemists. However, any constraining marker, regardless of age, may not be found in a particular facies because the parent organisms are absent in those sediments. Thus, the presence of a specific age correlation marker may be significant whereas its absence may not. The authors have investigated two markers for their age-correlation significance. Oleanane, a marker related to pentacyclic triterpanes in flowering plants (angiosperms) occurs in many Late Cretaceous or younger rocks and oils, even though angiosperm fossils are known in older rocks. A survey of a sequence of middle to upper Cretaceous rocks from Wyoming provides an example of a Late Cretaceous age for the onset of oleanane. However, a level of uncertainty exists for older Cretaceous rocks where a trace component with many similarities to oleanane (which could in fact be oleanane) can occur. C{sub 30}-steranes (24-n-propylcholestanes) have been used as a widely occurring marker for marine organic input to petroleum. A recent report postulates the origin of C{sub 30}-steranes from marine Sarcinochrysidales order of Chrysophycase (golden brown algae). Although the fossil record of these algae has not been recorded, their sample base indicates that C{sub 30} steranes, and therefore their parent organisms, originate in the Middle Ordovician.

Moldowan, J.M.; Jacobson, S.R.; Lee, C.Y. (Chevron Oil Field Research Co., Richmond, CA (USA)); Huizinga, B.J. (Chevron Overseas Petroleum, Inc., San Ramon, CA (USA))

1990-05-01T23:59:59.000Z

172

Aging of concrete structures in nuclear power plants  

SciTech Connect (OSTI)

The Structural Aging (SAG) Program, sponsored by the US Nuclear Regulatory Commission (USNRC) and conducted by the Oak Ridge National Laboratory (ORNL), had the overall objective of providing the USNRC with an improved basis for evaluating nuclear power plant structures for continued service. The program consists of three technical tasks: materials property data base, structural component assessment/repair technology, and quantitative methodology for continued service determinations. Major accomplishments under the SAG Program during the first two years of its planned five-year duration have included: development of a Structural Materials Information Center and formulation of a Structural Aging Assessment Methodology for Concrete Structures in Nuclear Power Plants. 9 refs.

Naus, D.J.; Pland, C.B. (Oak Ridge National Lab., TN (USA)); Arndt, E.G. (Nuclear Regulatory Commission, Washington, DC (USA))

1991-01-01T23:59:59.000Z

173

Socio-Economic and Cultural Aspects of Ageing in Nepal  

E-Print Network [OSTI]

patterns. customs and usages. The modern amenities and materialistic development has supprassed outwar≠ dly the foundation of spirituality, the basis of our society. fbi Population Situation In Nepal around 93 percents of the population live in rural araas... Population has gone up over the years with a prop≠ ortionate increase in aged segment. There is also a simultaneous and growing trend of population shift from the rural to urban areas. Percentage distribution of the total population by brOod age-groups. Nepal...

Regmi, Rishikeshab Raj

1993-01-01T23:59:59.000Z

174

Space-Age Ceramics Get Their Toughest Test  

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 MayAtmosphericNuclear Security Administrationcontroller systemsBiSite CulturalDepartment2)isomeraseUSChargeSpaceSpace-AgeSpace-Age

175

E-Print Network 3.0 - aged 13-16 years Sample Search Results  

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

Society Ali A. Jalali a Summary: years. In this age, great inventions, such as, the steam engine, railroad, airplane, telephone, electric... or the Information Age began about 50...

176

E-Print Network 3.0 - agees relation entre Sample Search Results  

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

agees relation entre Search Powered by Explorit Topic List Advanced Search Sample search results for: agees relation entre Page: << < 1 2 3 4 5 > >> 1 Introduction la programmation...

177

E-Print Network 3.0 - age multiple birth Sample Search Results  

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

The design of this cohort prospective... (maternal height, prepregnancy weight), parity, sex of child, gestational age, season of birth, and self... . Gestational age at birth was...

178

COGNITIVE DECLINE WITH AGE: ROLE OF STRIATAL CHOLINERGIC SYSTEM AND GROWTH HORMONE.  

E-Print Network [OSTI]

??Normal aging can result in cognitive decline even in the absence of neurodegenerative disease. Successful identification of neurobiological changes that occur in association with age-relatedÖ (more)

Nieves-Martinez, Erasmo

2010-01-01T23:59:59.000Z

179

E-Print Network 3.0 - aging population geriatric Sample Search...  

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

Institutes of Health Collection: Biology and Medicine 32 2011 Summer Series on Aging Committee Links AARP Kentucky Summary: 2011 Summer Series on Aging Committee Links AARP...

180

E-Print Network 3.0 - ansan geriatric age Sample Search Results  

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

Genetics, University of Georgia Collection: Biotechnology 12 2011 Summer Series on Aging Committee Links AARP Kentucky Summary: 2011 Summer Series on Aging Committee Links AARP...

Note: This page contains sample records for the topic "units age age" 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

Research is needed to assess the unique nutrition and wellness needs of aging Californians  

E-Print Network [OSTI]

the development of osteoporosis. Aging and nutrient intakeschronic diseases such as osteoporosis (Wallace 2005). Ma rinanemia, and calcium and osteoporosis; but the role of aging

Blackburn, Mary L.; Gillogly, Barbara; Hauselt, Peggy

2010-01-01T23:59:59.000Z

182

E-Print Network 3.0 - aging elastic material Sample Search Results  

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

a Summary: were water quenched. Aging treatments were carried out in a nitridenitrate salt bath. Elastic spring... ). It was also found that aging at lower temperatures after...

183

E-Print Network 3.0 - age menopausal status Sample Search Results  

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

function, and aging, physical... activity effects on psychological well-being, mental health and quality of life outcomes in middle-aged Source: Colby, Ralph H. -...

184

E-Print Network 3.0 - ages augen gnaisses Sample Search Results  

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

the age of metamorphism... exclusively of coarse amphibolite-facies minerals and has titanite with Precambrian U-Pb ages (Kylander... ) after coesite) and titanite with Scandian...

185

Monday, November 29, 2010 Chapters 12 and 14 "Ice Ages"  

E-Print Network [OSTI]

. Africa so it hasnt been as well studied as the other five (and so it wasnt discussed in detail the earth cool. #12;The second ice age was ~2500 mya (Huronian) ­ removal of methane from the atmosphere due (Late Ordovician) and 286 mya (Permo-Carboniferous) ­ large coal beds suggest a massive increase

Toohey, Darin W.

186

Friday April 19, 2013 Chapters 12 and 14 "Ice Ages"  

E-Print Network [OSTI]

-Archean," known from only two localities in S. Africa so it hasn't been as well studied as the other five (and so of methane from the atmosphere due to rise of oxygen (the `great oxidation event') which dramatically reduced and fifth ice ages 440 mya (Late Ordovician) and 286 mya (Permo-Carboniferous) ­ large coal beds suggest

Toohey, Darin W.

187

Retail Shelf-life Characteristics of Dry-aged Beef  

E-Print Network [OSTI]

counts, lactic acid bacteria, and yeast and mold counts. Surface discoloration (P = 0.007) and fat discoloration (P < 0.0001) of steaks increased as aging period and retail steak shelf-life day increased. Also, off-odor development increased (P < 0...

Ulbrich, Carson

2010-07-14T23:59:59.000Z

188

A 4D geometrical modeling of a material aging  

E-Print Network [OSTI]

4-dim intrinsic (material) Riemannian metric $G$ of the material 4-D space-time continuum $P$ is utilized as the characteristic of the aging processes developing in the material. Manifested through variation of basic material characteristics such as density, moduli of elasticity, yield stress, strength, and toughness., the aging process is modeled as the evolution of the metric $G$ (most importantly of its time component $G_{00}$) of the material space-time $P$ embedded into 4-D Newtonian space-time with Euclidean metric.\\par The evolutional equation for metric $G$ is derived by the classical variational approach. Construction of a Lagrangian for an aging elastic media and the derivation of a system of coupled elastostatic and aging equations constitute the central part of the work. The external and internal balance laws associated with symmetries of material and physical space-time geometries are briefly reviewed from a new viewpoint presented in the paper. Examples of the stress relaxation and creep of a homogeneous rod, cold drawing, and chemical degradation in a tubing are discussed.

A. Chudnovsky; S. Preston

2006-04-16T23:59:59.000Z

189

ResearchHighlights The last Ice Age in Australia  

E-Print Network [OSTI]

ResearchHighlights The last Ice Age in Australia Dr Timothy Barrows , Dr Keith Fifield, Accelerator of glaciation and climate change in Australia. By directly dating glacial debris and eroded bedrock, the timing of the glacial history of these regions, which were the only areas in Australia where glaciers existed

Chen, Ying

190

aging test results: Topics by E-print Network  

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

test results First Page Previous Page 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 Next Page Last Page Topic Index 1 Testing intermediate-age stellar evolution...

191

accelerated aging test: Topics by E-print Network  

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

accelerated aging test First Page Previous Page 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 Next Page Last Page Topic Index 1 Powerline Conductor Accelerated...

192

accelerated ageing test: Topics by E-print Network  

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

ageing test First Page Previous Page 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 Next Page Last Page Topic Index 1 Powerline Conductor Accelerated Testing...

193

Aging and Top-Down Attentional Control in Visual Search  

E-Print Network [OSTI]

systems that bias the gating of this featural information to later processing stages such as objectApril 2010 Aging and Top-Down Attentional Control in Visual Search Project Leads David J. Madden Security (DHS) to be able to assess and maintain this skill set in those employed as baggage screeners

McShea, Daniel W.

194

Age-Related Changes in Task Related Functional Network Connectivity  

E-Print Network [OSTI]

the information load [2,3,4], retention interval [5,6] and response time duration [7,8]. Results from fMRI studies-serving these processes have been elucidated with experimental manipulations that vary task demands by altering with these alterations in task demands [9]. Advancing age is associated with decreased performance on verbal working

195

argentina age stratigraphic: Topics by E-print Network  

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

argentina age stratigraphic First Page Previous Page 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 Next Page Last Page Topic Index 1 Contribution of GIS and...

196

Anoxygenic photosynthesis modulated Proterozoic oxygen and sustained Earth's middle age  

E-Print Network [OSTI]

Anoxygenic photosynthesis modulated Proterozoic oxygen and sustained Earth's middle age D. T photosynthesis to overall primary production would have influ- enced oceanic redox and the Proterozoic O2 budget time in Earth's history, complete dominance of oxygenic photosynthesis in the oceans. This paved

Macalady, Jenn

197

Age of Neoproterozoic Bilatarian Body and Trace Fossils, White  

E-Print Network [OSTI]

Age of Neoproterozoic Bilatarian Body and Trace Fossils, White Sea, Russia: Implications-bearing, shallow marine siliciclastic rocks in the Zimnie Gory section of the White Sea region indicates Ranges, South Australia (18); in the Poleta Formation in the White-Inyo Mountains and Upper Wood Canyon

198

All Quebec Retired Employees age 65 and over  

E-Print Network [OSTI]

be kept in a safe place known to you and your family. The Plan is underwritten by #12;Protecting Your; as well as life, disability and critical illness insurance for individuals and families. As a leadingAll Quebec Retired Employees age 65 and over #12;Great-West Life is a leading Canadian life

199

Brain surgery breathes new life into aging plants  

SciTech Connect (OSTI)

Unlike managing the human aging process, extending the life of a power plant often includes brain surgery, modernizing its control and automation system. Lately, such retrofits range from wholesale replacing of existing controls to the addition of specific control elements that help optimize performance. Pending revisions to safety codes and cybersecurity issues also need to be considered. 4 figs.

Makansi, J. [Pearl Street Inc. (United States)

2006-04-15T23:59:59.000Z

200

Bitcoin and The Age of Bespoke Silicon Michael Bedford Taylor  

E-Print Network [OSTI]

Bitcoin and The Age of Bespoke Silicon Michael Bedford Taylor University of California, San Diego ABSTRACT Recently, the Bitcoin cryptocurrency has been an interna- tional sensation. This paper tells the story of Bitcoin hard- ware: how a group of early-adopters self-organized and fi- nanced the creation

Wang, Deli

Note: This page contains sample records for the topic "units age age" 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

Social relationships, sleep quality, and interleukin-6 in aging women  

E-Print Network [OSTI]

focus on sleep quality and its interactions with social engagement in predicting reduced plasma IL-6 of social engagement, sleep quality, and plasma levels of interleukin-6 (IL-6) in a sample of aging women (n samples were obtained for analysis of plasma levels of IL-6. Regarding subjective assessment, poorer sleep

Patel, Aniruddh D.

202

Women in management: gender, age and working lives†  

E-Print Network [OSTI]

The project reported in this briefing paper explored how age and gender inter-weave and impact on the working and home lives of women managers working in two EU member states, namely Finland and Scotland. The proportion of women in middle...

Jyrkinen, Marjut; McKie, Linda

203

Aging of Alloy 617 at 650 and 750 Degrees C  

SciTech Connect (OSTI)

Alloy 617 has been selected as the primary candidate for heat exchanger applications in advanced reactors. For the VHTR this application could require extended service up to a reactor outlet temperature of 950įC. A key hurdle to using this alloy in the VHTR heat exchanger application is qualifying the alloy for Section III of the ASME Boiler and Pressure Vessel Code. In order to Code qualify the material it is necessary to characterize the influence of long term aging on the mechanical behavior. Alloy 617 has been aged at 650 and 750įC for times up to 5300 hours. The microstructure after aging has been characterized using optical and transmission electron microscopies. It has been determined that in addition to carbides, a significant volume fraction of ?í phase (Ni3Al) is formed at these temperatures. The ?í does not contribute significantly to changing the tensile or impact properties of the aged material. It does, however, appear to increase creep resistance and impede creep crack growth.

Julian Benz; Thomas Lillo; Richard Wright

2013-01-01T23:59:59.000Z

204

The Age-Redshift Relation for Standard Cosmology  

E-Print Network [OSTI]

We present compact, analytic expressions for the age-redshift relation $\\tau(z)$ for standard Friedmann-Lema\\^ \\itre-Robertson-Walker (FLRW) cosmology. The new expressions are given in terms of incomplete Legendre elliptic integrals and evaluate much faster than by direct numerical integration.

R. C. Thomas; R. Kantowski

2000-08-10T23:59:59.000Z

205

METAPHORS OF THE CITY IN THE INFORMATION AGE ANTON DOCHTERMANN  

E-Print Network [OSTI]

of the Industrial Revolution in the Modern Age, a quasi-religious faith in scientific thought emerged. Sci- ence revolution has transformed some of the most fundamental as- sumptions that characterize our society. It has and time. The way that we conceive of and imagine the cities of this revolution, however, can serve

Carlsson, Gunnar

206

Nuclear Physics and National Security in an Age of Terrorism  

E-Print Network [OSTI]

Nuclear Physics and National Security in an Age of Terrorism Jerry Gilfoyle Physics Department, University of Richmond, Virginia Outline: 1. How do we assess the threat? 1. Nuclear Weapons 101 2. Catching to the threat? ­ prevention ­ mitigation (i.e. cleanup, cures, etc.) ­ retaliation #12;Nuclear Weapons 101 What

Gilfoyle, Jerry

207

Correlations of Structure and Dynamics in an Aging Colloidal Glass  

E-Print Network [OSTI]

Correlations of Structure and Dynamics in an Aging Colloidal Glass Gianguido C. Cianci, Rachel E an initial state. We study the relationship between the static structure and the slowing dynamics, using these phenomena try to link the microscopic structure to the microscopic dynamics. For example, one might

Weeks, Eric R.

208

Aging, tumor suppression and cancer: High-wire act!  

SciTech Connect (OSTI)

Evolutionary theory holds that aging is a consequence of the declining force of natural selection with age. We discuss here the evidence that among the causes of aging in complex multicellular organisms, such as mammals, is the antagonistically pleiotropic effects of the cellular responses that protect the organism from cancer. Cancer is relatively rare in young mammals, owing in large measure to the activity of tumor suppressor mechanisms. These mechanisms either protect the genome from damage and/or mutations, or they elicit cellular responses--apoptosis or senescence--that eliminate or prevent the proliferation of somatic cells at risk for neoplastic transformation.We focus here on the senescence response, reviewing its causes, regulation and effects. In addition, we describe recent data that support the idea that both senescence and apoptosis may indeed be the double-edged swords predicted by the evolutionary hypothesis of antagonistic pleiotropy--protecting organisms from cancer early in life, but promoting aging phenotypes, including late life cancer, in older organisms.

Campisi, Judith

2004-08-15T23:59:59.000Z

209

Original article Age-related changes in apparent digestibility  

E-Print Network [OSTI]

Original article Age-related changes in apparent digestibility in growing kittens E. Jean HARPER kitten to digest protein, fat, carbohydrate, dry-matter and energy were assessed. Kittens were divided access to food. Apparent digestibility of the two diets, and kitten bodyweights were measured over a 24

Paris-Sud XI, Universitť de

210

Effect of aging on the seismic performance of petrochemical facilities  

SciTech Connect (OSTI)

This paper discusses the effects of aging of petrochemical facilities with regard to the impact on seismic performance. Examples of typical construction and serious concerns are presented. Requirements in evaluation and retrofits are discussed. A comparison is made with the current state-of-practice in offshore platforms and nuclear power plants.

Johnson, G.S. (EQE International, San Francisco, CA (United States))

1993-05-01T23:59:59.000Z

211

Ages of White Dwarf-Red Subdwarf Systems  

E-Print Network [OSTI]

We provide the first age estimates for two recently discovered white dwarf-red subdwarf systems, LHS 193AB and LHS 300AB. These unusual systems provide a new opportunity for linking the reliable age estimates for the white dwarfs to the (measurable) metallicities of the red subdwarfs. We have obtained precise photometry in the $V_{J}R_{KC}I_{KC}JH$ bands and spectroscopy covering from 6000\\AA to 9000\\AA for the two new systems, as well as for a comparison white dwarf-main sequence red dwarf system, GJ 283 AB. Using model grids available in the literature, we estimate the cooling age as well as temperature, surface gravity, mass, progenitor mass and {\\it total} lifetimes of the white dwarfs. The results indicate that the two new systems are probably ancient thick disk objects with ages of at least 6-9 Gyr. We also conduct searches of red dwarf and white dwarf compendia from SDSS data and the L{\\'e}pine Shara Proper Motion (LSPM) catalog for additional common proper motion white dwarf-red subdwarf systems. Only seven new candidate systems are found, which indicates the rarity of these systems.

Hektor Monteiro; Wei-Chun Jao; Todd Henry; John Subasavage; Thom Beaulieu

2005-10-12T23:59:59.000Z

212

The end of the age of oil David Goodstein  

E-Print Network [OSTI]

(99 Quads) #12;Fossil Fuels Oil Natural gas Shale oil Methane hydrate Coal #12;Coal Hundreds, maybeOut of Gas The end of the age of oil David Goodstein Portland State University November 14, 2008 #12;Energy Myths $4.00 a gallon is too much to pay for gasoline Oil companies produce oil. We must

Bertini, Robert L.

213

Final Report Inspection of Aged/Degraded Containments Program.  

SciTech Connect (OSTI)

The Inspection of Aged/Degraded Containments Program had primary objectives of (1) understanding the significant factors relating corrosion occurrence, efficacy of inspection, and structural capacity reduction of steel containments and liners of reinforced concrete containments; (2) providing the United States Nuclear Regulatory Commission (USNRC) reviewers a means of establishing current structural capacity margins or estimating future residual structural capacity margins for steel containments, and concrete containments as limited by liner integrity; (3) providing recommendations, as appropriate, on information to be requested of licensees for guidance that could be utilized by USNRC reviewers in assessing the seriousness of reported incidences of containment degradation; and (4) providing technical assistance to the USNRC (as requested) related to concrete technology. Primary program accomplishments have included development of a degradation assessment methodology; reviews of techniques and methods for inspection and repair of containment metallic pressure boundaries; evaluation of high-frequency acoustic imaging, magnetostrictive sensor, electromagnetic acoustic transducer, and multimode guided plate wave technologies for inspection of inaccessible regions of containment metallic pressure boundaries; development of a continuum damage mechanics-based approach for structural deterioration; establishment of a methodology for reliability-based condition assessments of steel containments and liners; and fragility assessments of steel containments with localized corrosion. In addition, data and information assembled under this program has been transferred to the technical community through review meetings and briefings, national and international conference participation, technical committee involvement, and publications of reports and journal articles. Appendix A provides a listing of program reports, papers, and publications; and Appendix B contains a listing of program-related presentations.

Naus, Dan J [ORNL; Ellingwood, B R [Georgia Institute of Technology; Oland, C Barry [ORNL

2005-09-01T23:59:59.000Z

214

Iodine Loading of NO Aged Silver Exchanged Mordenite  

SciTech Connect (OSTI)

In an off-gas treatment system for used nuclear fuel processing, a solid sorbent will typically be exposed to a gas stream for months at a time. This gas stream may be at elevated temperature and could contain water vapor, gaseous nitrogen oxides (NO{sub x}), nitric acid vapors, and a variety of other constituents. For this reason, it is important to evaluate the effects of long-term exposure, or aging, on proposed sorbents. Silver exchanged mordenite (AgZ) is being studied at Oak Ridge National Laboratory (ORNL) to determine its iodine sorption capacity after long term exposure to increasingly more complex chemical environments. Studies previously conducted at ORNL investigated the effects of aging reduced silver exchanged mordenite (Ag{sup 0}Z) in dry air, moist air, and NO2. This study investigated the effects of extended exposure to nitric oxide (NO) gas on the iodine capture performance of Ag{sup 0}Z. A deep bed of Ag{sup 0}Z was aged in a 1% nitric oxide (NO) air stream, and portions of the bed were removed at pre-determined intervals. After being removed from the NO stream, each sample was loaded with iodine in a thin bed configuration. These samples were analyzed by neutron activation analysis (NAA) to quantify the iodine content in the sample. Samples were removed at one week and one month. A 78% decrease in sample capacity was seen after one week of exposure, with no further decrease observed after 1 month of aging. The observed loss in capacity is larger in magnitude than previous studies exposing Ag{sup 0}Z to dry air, moist air, or NO2 gas. The aging study was terminated after one month and repeated; this successfully demonstrated the reproducibility of the results.

Patton, K. K. [ORNL; Bruffey, S. H. [ORNL; Jubin, J. T. [ORNL; Walker, Jr., J. F. [ORNL

2014-09-30T23:59:59.000Z

215

Ferrocyanide safety project ferrocyanide aging studies FY 1995 annual report  

SciTech Connect (OSTI)

This annual report gives the results of the work conducted by the Pacific Northwest Laboratory in FY 1995 on Task 3 of the Ferrocyanide Safety Project, Ferrocyanide Aging Studies. Aging refers to the dissolution and hydrolysis of simulated Hanford ferrocyanide waste in alkaline aqueous solutions by radiolytic and chemical means. The ferrocyanide simulant primarily used in these studies was dried In-Farm-1B, Rev. 7, prepared by Westinghouse Hanford Company to simulate the waste generated when the In-Farm flowsheet was used to remove radiocesium from waste supernates in single-shell tanks at the Hanford Site. In the In-Farm flowsheet, nickel ion and ferrocyanide anion were added to waste supernates to precipitate sodium nickel ferrocyanide, Na{sub 2}NiFe(CN){sub 6}, and co-precipitate radiocesium. Once the radiocesium was removed, supernates were pumped from the tanks, and new wastes from cladding removal processes or from evaporators were added. These new wastes were typically highly caustic, having hydroxide ion concentrations of over 1 M and as high as 4 M. The Aging Studies task is investigating reactions this caustic waste may have had with the precipitated ferrocyanide waste in a radiation field. In previous Aging Studies research, Na{sub 2}NiFe(CN){sub 6} in simulants was shown to dissolve in basic solutions, forming insoluble Ni(OH){sub 2} and soluble Na{sub 4}Fe(CN){sub 6}. The influence on solubility of base strength, sodium ion concentration, anions, and temperature was previously investigated. The results may indicate that even ferrocyanide sludge that did not come into direct contact with highly basic wastes may also have aged significantly.

Lilga, M.A.; Alderson, E.V.; Hallen, R.T. [and others

1995-09-01T23:59:59.000Z

216

Mesenchymal progenitor self-renewal deficiency leads to age-dependent osteoporosis in  

E-Print Network [OSTI]

Mesenchymal progenitor self-renewal deficiency leads to age-dependent osteoporosis in Sca-1 Ly-6A) The cellular and molecular mechanisms that underlie age-dependent osteoporosis, the most common disease uncharacterized mechanism of age-dependent osteoporosis in humans. Osteoporosis is a multifactorial, age

Waldman, Stephen D.

217

E-Print Network 3.0 - age life styles Sample Search Results  

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

NGS SCHOOl OF VETERiNARy MEDiCiNE 4 EXCEllENCE AT WORK 5 CONFRONTiNG AGE MyTHS 6-7 lEARNiNG STylES 7-8 12... Chronological Age, Career Age, Life Events Age, and...

218

E-Print Network 3.0 - accelerated aging tests Sample Search Results  

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

tests Search Powered by Explorit Topic List Advanced Search Sample search results for: accelerated aging tests...

219

E-Print Network 3.0 - accelerated ageing tests Sample Search...  

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

tests Search Powered by Explorit Topic List Advanced Search Sample search results for: accelerated ageing tests...

220

The effect of aging techniques on asphalt low-temperature properties  

E-Print Network [OSTI]

. . . . . . . . . 62 m-Value as a Function of Aging Time for AAF-I Stiffness as a Function of Aging Time for AAF-I . . . . 63 . . . . 63 xu FIGURE III-22 H1-23 m-Value as a Function of Aging Time for Exxon AC-20 . . . . . Stiffness as a Function of Aging Time... for Exxon AC-20 . . . . . Page . . . . 64 Comparison of m-Value Grade and S Grade for Materials at Various Aging Times. . . . . . . . . . . . . . . . . . . , . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65 III-25 Comparison of m...

Knorr, Daniel Brainard

2001-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "units age age" 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

Management of aging of nuclear power plant containment structures  

SciTech Connect (OSTI)

Research addressing aging management of nuclear power plant concrete and steel containment structures is summarized. Accomplishments related to concrete containment structures include formation of a materials` property database; an aging assessment methodology to identify critical structures and degradation factors; guidelines and evaluation criteria for use in condition assessments; and a time-dependent reliability-based methodology for condition assessments and estimations of future performance. Under the steel containments and liners activity, a degradation assessment methodology has been developed, mathematical models that describe time-dependent changes in the containment due to aggressive environmental factors have been identified, and statistical data supporting the use of these models in time-dependent reliability analysis have been summarized.

Naus, D.; Oland, C.B. [Oak Ridge National Lab., TN (United States). Engineering Technology Div.; Ellingwood, B. [Johns Hopkins Univ., Baltimore, MD (United States). Dept. of Civil Engineering; Norris, W.E.; Graves, H.L. III [Nuclear Regulatory Commission, Washington, DC (United States). Office of Nuclear Regulatory Research

1998-06-01T23:59:59.000Z

222

The Age and Interior Rotation of Stars from Asteroseismology  

E-Print Network [OSTI]

We provide a status report on the determination of stellar ages from asteroseismology for stars of various masses and evolutionary stages. The ability to deduce the ages of stars with a relative precision of typically 10 to 20% is a unique opportunity for stellar evolution and also of great value for both galactic and exoplanet studies. Further, a major uncalibrated ingredient that makes stellar evolution models uncertain, is the stellar interior rotation frequency $\\Omega(r)$ and its evolution during stellar life. We summarize the recent achievements in the derivation of $\\Omega(r)$ for different types stars, offering stringent observational constraints on theoretical models. Core-to-envelope rotation rates during the red giant stage are far lower than theoretical predictions, pointing towards the need to include new physical ingredients that allow strong and efficient coupling between the core and the envelope in the models of low-mass stars in the evolutionary phase prior to the core helium burning. Stars ...

Aerts, Conny

2015-01-01T23:59:59.000Z

223

The Development of the Bronze Age Funerary Landscape of Nichoria  

E-Print Network [OSTI]

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xxi KE-RA-ME-JA: CERAMIC STUDIES 1. Late Helladic I Revisited: The Kytheran Connection by Oliver Dickinson. . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 2. Wine, Women, and Song . . . The LH IIIA:2 Kylix at Petsas House, Mycenae by Kim S... for periodicals in the reference lists of the chapters follow the conventions of the Ameri- can Journal of Archaeology 111 (2007), pp. 14Ė34. List of Abbreviations CR Crete DA Dark Age dat. dative diam. diameter dim. dimensions EDS energy dispersive X...

Boyd, Michael J.

2014-11-28T23:59:59.000Z

224

Determination of age in forensic dentistry from cemental incremental lines  

E-Print Network [OSTI]

discrimination of incremental lines with accuracy and repeatability. Therefore, the purposes of this study are (1) to develop a technique for enhancing the incremen al lines n the dental cementum; (2) to evaluate the accuracy of age estimates based... economically applied to evaluate and count the incremental lines in the dental cementum. In this study nondemineralized cross-sections of human teeth were evaluated. This method was cnosen because the decalcification process is not only a time...

Sousa, Eliane Marques Duarte de

1987-01-01T23:59:59.000Z

225

Materials Compatibility and Aging for Flux and Cleaner Combinations.  

SciTech Connect (OSTI)

A materials study of high reliability electronics cleaning is presented here. In Phase 1, mixed type substrates underwent a condensed contaminants application to view a worst- case scenario for unremoved flux with cleaning agent residue for parts in a silicone oil filled environment. In Phase 2, fluxes applied to copper coupons and to printed wiring boards underwent gentle cleaning then accelerated aging in air at 65% humidity and 30 O C. Both sets were aged for 4 weeks. Contaminants were no-clean (ORL0), water soluble (ORH1 liquid and ORH0 paste), and rosin (RMA; ROL0) fluxes. Defluxing agents were water, solvents, and engineered aqueous defluxers. In the first phase, coupons had flux applied and heated, then were placed in vials of oil with a small amount of cleaning agent and additional coupons. In the second phase, pairs of copper coupons and PWB were hand soldered by application of each flux, using tin-lead solder in a strip across the coupon or a set of test components on the PWB. One of each pair was cleaned in each cleaning agent, the first with a typical clean, and the second with a brief clean. Ionic contamination residue was measured before accelerated aging. After aging, substrates were removed and a visual record of coupon damage made, from which a subjective rank was applied for comparison between the various flux and defluxer combinations; more corrosion equated to higher rank. The ORH1 water soluble flux resulted in the highest ranking in both phases, the RMA flux the least. For the first phase, in which flux and defluxer remained on coupons, the aqueous defluxers led to worse corrosion. The vapor phase cleaning agents resulted in the highest ranking in the second phase, in which there was no physical cleaning. Further study of cleaning and rinsing parameters will be required.

Archuleta, Kim; Piatt, Rochelle

2015-01-01T23:59:59.000Z

226

Boiling-Water Reactor internals aging degradation study. Phase 1  

SciTech Connect (OSTI)

This report documents the results of an aging assessment study for boiling water reactor (BWR) internals. Major stressors for BWR internals are related to unsteady hydrodynamic forces generated by the primary coolant flow in the reactor vessel. Welding and cold-working, dissolved oxygen and impurities in the coolant, applied loads and exposures to fast neutron fluxes are other important stressors. Based on results of a component failure information survey, stress corrosion cracking (SCC) and fatigue are identified as the two major aging-related degradation mechanisms for BWR internals. Significant reported failures include SCC in jet-pump holddown beams, in-core neutron flux monitor dry tubes and core spray spargers. Fatigue failures were detected in feedwater spargers. The implementation of a plant Hydrogen Water Chemistry (HWC) program is considered as a promising method for controlling SCC problems in BWR. More operating data are needed to evaluate its effectiveness for internal components. Long-term fast neutron irradiation effects and high-cycle fatigue in a corrosive environment are uncertainty factors in the aging assessment process. BWR internals are examined by visual inspections and the method is access limited. The presence of a large water gap and an absence of ex-core neutron flux monitors may handicap the use of advanced inspection methods, such as neutron noise vibration measurements, for BWR.

Luk, K.H. [Oak Ridge National Lab., TN (United States)

1993-09-01T23:59:59.000Z

227

Report on aging of nuclear power plant reinforced concrete structures  

SciTech Connect (OSTI)

The Structural Aging Program provides the US Nuclear Regulatory Commission with potential structural safety issues and acceptance criteria for use in continued service assessments of nuclear power plant safety-related concrete structures. The program was organized under four task areas: Program Management, Materials Property Data Base, Structural Component Assessment/Repair Technology, and Quantitative Methodology for Continued Service Determinations. Under these tasks, over 90 papers and reports were prepared addressing pertinent aspects associated with aging management of nuclear power plant reinforced concrete structures. Contained in this report is a summary of program results in the form of information related to longevity of nuclear power plant reinforced concrete structures, a Structural Materials Information Center presenting data and information on the time variation of concrete materials under the influence of environmental stressors and aging factors, in-service inspection and condition assessments techniques, repair materials and methods, evaluation of nuclear power plant reinforced concrete structures, and a reliability-based methodology for current and future condition assessments. Recommendations for future activities are also provided. 308 refs., 61 figs., 50 tabs.

Naus, D.J.; Oland, C.B. [Oak Ridge National Lab., TN (United States); Ellingwood, B.R. [Johns Hopkins Univ., Baltimore, MD (United States). Dept. of Civil Engineering

1996-03-01T23:59:59.000Z

228

Aging and iodine loading of silver-functionalized aerogels  

SciTech Connect (OSTI)

Engineered silver-functionalized silica aerogels are being investigated for their potential application in off-gas treatment at a used nuclear fuel reprocessing facility. Reprocessing will release several key volatile radionuclides, including iodine-129. To achieve regulatory compliance, iodine-129 must be removed from any off-gas stream prior to environmental discharge. Ag{sup 0}-functionalized aerogels have been demonstrated to have high iodine-capture capacity, high porosity, and potential for conversion into a waste form. Capture materials used in off-gas treatment may be exposed to a heated, high-humidity, acidic gas stream for months. Extended exposure to this stream could affect sorbent performance. It was the aim of this study to evaluate what impacts might be observed when Ag{sup 0}-functionalized aerogels prepared at Pacific Northwest National Laboratory were contacted with a dry air stream for up to 6 months and then used to adsorb iodine from a synthetic off-gas stream. Results demonstrate that there is some loss of iodine-capture capacity caused by aging, but that this loss is not as marked as for aging of more traditional iodine sorbents, such as silver-impregnated mordenite. Specifically, aging silver-functionalized aerogel under a dry air stream for up to 6 months can decrease its iodine capacity from 41 wt% to 32 wt%. (authors)

Bruffey, S.H.; Jubin, R.T.; Anderson, K.K.; Walker, J.F. [Oak Ridge National Laboratory, P.O. Box 2008, MS-6223, Oak Ridge, TN 37831 (United States)

2013-07-01T23:59:59.000Z

229

AGING AND IODINE LOADING OF SILVER-FUNCTIONALIZED AEROGELS  

SciTech Connect (OSTI)

Engineered silver-functionalized silica aerogels are being investigated for their application in off-gas treatment at a used nuclear fuel reprocessing facility. Reprocessing will release several key volatile radionuclides, including iodine-129. To achieve regulatory compliance, iodine-129 must be removed from any off-gas stream prior to environmental discharge. Silver-functionalized aerogels have been demonstrated to have high iodine capture capacity, high porosity and potential for conversion into a waste form. Capture materials used in off-gas treatment may be exposed to a heated, high humidity, acidic gas stream for months. Extended exposure to this stream could affect sorbent performance. It was the aim of this study to evaluate what impacts might be observed when Ag0-functionalized aerogels prepared at Pacific Northwest National Laboratory were contacted with a dry air stream for up to 6 months and then used to adsorb iodine from a synthetic off-gas stream. Results demonstrate that there is some loss of iodine capture capacity caused by aging, but that this loss is not as marked as for aging of more traditional iodine sorbents, such as silver-impregnated mordenite. Specifically, aging silver-functionalized aerogel under a dry air stream for up to 6 months can decrease its iodine capacity from 41wt% to 32wt%.

Bruffey, Stephanie H [ORNL; Jubin, Robert Thomas [ORNL; Anderson, Kaara K [ORNL; Walker Jr, Joseph Franklin [ORNL

2013-01-01T23:59:59.000Z

230

Solid Friction from stick-slip to pinning and aging  

E-Print Network [OSTI]

We review the present state of understanding of solid friction at low velocities and for systems with negligibly small wear effects. We first analyze in detail the behavior of friction at interfaces between wacroscopic hard rough solids, whose main dynamical features are well described by the Rice-Ruina rate and state dependent constitutive law. We show that it results from two combined effects : (i) the threshold rheology of nanometer-thick junctions jammed under confinement into a soft glassy structure (ii) geometric aging, i.e. slow growth of the real arrea of contact via asperity creep interrupted by sliding. Closer analysis leads to identifying a second aging-rejuvenation process, at work within the junctions themselves. We compare the effects of structural aging at such multicontact, very highly confined, interfaces with those met under different confinement levels, namely boundary lubricated contacts and extended adhesive interfaces involving soft materials (hydrogels, elastomers). This leads us to propose a classification of frictional junctions in terms of the relative importance of jamming and adsoprtion-induced metastability.

Tristan Baumberger; Christiane Caroli

2005-06-24T23:59:59.000Z

231

2012 ACCOMPLISHMENTS - TRITIUM AGING STUDIES ON STAINLESS STEELS  

SciTech Connect (OSTI)

This report summarizes the research and development accomplishments during FY12 for the tritium effects on materials program. The tritium effects on materials program is designed to measure the long-term effects of tritium and its radioactive decay product, helium-3, on the structural properties of forged stainless steels which are used as the materials of construction for tritium reservoirs. The FY12 R&D accomplishments include: (1) Fabricated and Thermally-Charged 150 Forged Stainless Steel Samples with Tritium for Future Aging Studies; (2) Developed an Experimental Plan for Measuring Cracking Thresholds of Tritium-Charged-and-Aged Steels in High Pressure Hydrogen Gas; (3) Calculated Sample Tritium Contents For Laboratory Inventory Requirements and Environmental Release Estimates; (4) Published report on ďCracking Thresholds and Fracture Toughness Properties of Tritium-Charged-and-Aged Stainless SteelsĒ; and, (5) Published report on ďThe Effects of Hydrogen, Tritium, and Heat Treatment on the Deformation and Fracture Toughness Properties of Stainless SteelsĒ. These accomplishments are highlighted here and references given to additional reports for more detailed information.

Morgan, M.

2013-01-31T23:59:59.000Z

232

Effect of aged waste package and basalt on radioelement release  

SciTech Connect (OSTI)

Results of experiments are described that combine backfill, radioactive waste, and repository host rock in a single flowing groundwater stream in a manner analogous to a hydraulic breach of a waste repository. The experimental design is used to identify the chemical interactions that would occur if repository components were breached by flowing water. The results indicate that of three parameters studied, the alteration of the repository components as might occur upon aging had the most substantial influence on the migration of radioactive elements dissolved from the solid radioactive waste. The other two parameters, the metal alloy used in the apparatus and an ionizing radiation field imposed on the experimental apparatus, had little or no measurable effect on radioactive element transport by flowing water. Inasmuch as the alteration of the repository materials represent aging in an actual repository, it is concluded that changes with age may detrimentally affect the ability of a repository to isolate plutonium and neptunium, and possibly other radioactive elements in nuclear waste. 37 references, 2 figures, 2 tables.

Seitz, M.G.; Vandegrift, G.F.; Bowers, D.L.; Gerding, T.J.

1983-01-01T23:59:59.000Z

233

Spectral Energy and Age Distributions for 51 Globular Cluster Candidates  

E-Print Network [OSTI]

This paper is the fourth in a series presenting spectrophotometry of 51 globular cluster candidates, that were detected by Mochejska et al. in the nearby galaxy M33 using the data collected by the DIRECT project. The frames of M33 in this study were taken as part of the BATC Multicolor Sky Survey. We obtained the spectral energy distributions of these candidates in 13 intermediate-band filters. By comparing the integrated photometric measurements with theoretical stellar population synthesis models of Bruzual & Charlot, we estimated their ages. The BC96 models provide the evolution in time of the spectrophotometric properties of simple stellar populations for a wide range of stellar metallicity. Our results show that half of the candidates are younger than 10^8 years, whose age degeneracy is not pronounced. We also find that globular clusters formed continuously in M33 from ~4*10^6 -- 10^{10} years. Our results are in agreement with Chandar et al., who estimated ages for 35 globular clusters candidates in...

Ma, J; Chen, J; Wu, H; Kong, X; Jiang, Z; Xue, S; Zhu, J; Ma, Jun; Zhou, Xu; Chen, Jiansheng; Wu, Hong; Kong, Xu; Jiang, Zhaoji; Xue, Suijian; Zhu, Jin

2002-01-01T23:59:59.000Z

234

Aging assessment of large electric motors in nuclear power plants  

SciTech Connect (OSTI)

Large electric motors serve as the prime movers to drive high capacity pumps, fans, compressors, and generators in a variety of nuclear plant systems. This study examined the stressors that cause degradation and aging in large electric motors operating in various plant locations and environments. The operating history of these machines in nuclear plant service was studied by review and analysis of failure reports in the NPRDS and LER databases. This was supplemented by a review of motor designs, and their nuclear and balance of plant applications, in order to characterize the failure mechanisms that cause degradation, aging, and failure in large electric motors. A generic failure modes and effects analysis for large squirrel cage induction motors was performed to identify the degradation and aging mechanisms affecting various components of these large motors, the failure modes that result, and their effects upon the function of the motor. The effects of large motor failures upon the systems in which they are operating, and on the plant as a whole, were analyzed from failure reports in the databases. The effectiveness of the industry`s large motor maintenance programs was assessed based upon the failure reports in the databases and reviews of plant maintenance procedures and programs.

Villaran, M.; Subudhi, M. [Brookhaven National Lab., Upton, NY (United States)

1996-03-01T23:59:59.000Z

235

Aging of Iodine-Loaded Silver Mordenite in NO2  

SciTech Connect (OSTI)

Used nuclear fuel facilities need to control and minimize radioactive emissions. Off-gas systems are designed to remove radioactive contaminants, such as 85Kr, 14C, 3H, and 129I. In an off-gas system, any capture material will be exposed to a gas stream for months at a time. This gas stream may be at elevated temperature and could contain water, NOx gas, or a variety of other constituents comprising the dissolver off-gas stream in a nuclear fuel reprocessing plant. For this reason, it is important to evaluate the effects of long-term exposure, or aging, on proposed capture materials. One material under consideration is reduced silver mordenite (Ag0Z), which is recognized for its efficient iodine capture properties. Iodine is immobilized on Ag0Z as AgI, a solid with low volatility (m.p. ? 500įC). The aim of this study was to determine whether extended aging at elevated temperature in a nominally 2% NO2 environment would result in a loss of immobilized iodine from this material due to either physical or chemical changes that might occur during aging. Charges of iodine-loaded reduced silver mordenite (I2-Ag0Z) were exposed to a 2% NO2 environment for 1, 2, 3, and 4 months at 150įC, then analyzed for iodine losses The aging study was completed successfully. The material did not visibly change color or form. The results demonstrate that no significant iodine loss was observed over the course of 4 months of 2% NO2 aging of I2-Ag0Z at elevated temperature within the margin of error and the variability (~10%) in the loading along the beds. This provides assurance that iodine will remain immobilized on Ag0Z during extended online use in an off-gas capture treatment system. Future tests should expose I2-Ag0Z to progressively more complex feed gases in an effort to accurately replicate the conditions expected in a reprocessing facility.

Bruffey, Stephanie H. [ORNL; Jubin, Robert Thomas [ORNL; Patton, Kaara K. [ORNL; Walker Jr, Joseph Franklin [ORNL

2014-04-01T23:59:59.000Z

236

Comparison of organic-rich shales of Pennsylvanian age in Indiana with New Albany Shale  

SciTech Connect (OSTI)

Abundant black organic-rich shales occur in rocks of Pennsylvanian age in southwestern Indiana. They have not been well characterized except for a few thin intervals in small areas, the best example being at the abandoned Mecca Quarry in west-central Indiana. Although these shales are thinner and less widespread than the organic-rich shales of the New Albany Shale (Devonian and Mississippian age) they warrant characterization because of their accessibility during strip mining of underlying coals. Organic-rich shales of Pennsylvanian age contain up to 44% organic carbon and might be considered potential oil shales. Carbon to hydrogen ratios in these shales are similar to those in the New Albany. Relatively high concentrations of certain metals occur in shales of both ages, especially where phosphate is abundant, and sulfur values for both shales range from < 1 to 6%. Sulfur values are much higher for thin pyrite-rich units. Siderite nodules are common in Pennsylvania shales, but little siderite if found in the New Albany. Dolomite, commonly ferroan, and calcite in a variety of forms are the dominant carbonates in the New Albany. Some Pennsylvanian shales may contain large fossils or mica flakes, but such coarse-grained features are uncommon in the New Albany Shale.

Shaffer, N.R.; Leininger, R.K.; Ennis, M.V.

1983-09-01T23:59:59.000Z

237

Aging assessment of essential HVAC chillers used in nuclear power plants. Phase 1, Volume 1  

SciTech Connect (OSTI)

The Pacific Northwest Laboratory conducted a Phase I aging assessment of chillers used in the essential safety air-conditioning systems of nuclear power plants. Centrifugal chillers in the 75- to 750-ton refrigeration capacity range are the predominant type used. The chillers used, and air-conditioning systems served, vary in design from plant-to-plant. It is crucial to keep chiller internals very clean and to prevent the leakage of water, air, and other contaminants into the refrigerant containment system. Periodic operation on a weekly or monthly basis is necessary to remove moisture and noncondensable gases that gradually build up inside the chiller. This is especially desirable if a chiller is required to operate only as an emergency standby unit. The primary stressors and aging mechanisms that affect chillers include vibration, excessive temperatures and pressures, thermal cycling, chemical attack, and poor quality cooling water. Aging is accelerated by moisture, non-condensable gases (e.g., air), dirt, and other contamination within the refrigerant containment system, excessive start/stop cycling, and operating below the rated capacity. Aging is also accelerated by corrosion and fouling of the condenser and evaporator tubes. The principal cause of chiller failures is lack of adequate monitoring. Lack of performing scheduled maintenance and human errors also contribute to failures.

Blahnik, D.E.; Klein, R.F. [Pacific Northwest Lab., Richland, WA (United States)

1993-09-01T23:59:59.000Z

238

On the use of age-specific effective dose coefficients in radiation protection of the public  

SciTech Connect (OSTI)

Current radiation protection standards for the public include a limit on effective dose in any year for individuals in critical groups. This paper considers the question of how the annual dose limit should be applied in controlling routine exposures of populations consisting of individuals of all ages. The authors assume that the fundamental objective of radiation protection is limitation of lifetime risk and, therefore, that standards for controlling routine exposures of the public should provide a reasonable correspondence with lifetime risk, taking into account the age dependence of intakes and doses and the variety of radionuclides and exposure pathways of concern. Using new calculations of the per capita (population-averaged) risk of cancer mortality per unit activity inhaled or ingested in the US Environmental Protection Agency`s Federal Guidance Report No. 13, the authors show that applying a limit on annual effective dose only to adults, which was the usual practice in radiation protection of the public before the development of age-specific effective dose coefficients, provides a considerably better correspondence with lifetime risk than applying the annual dose limit to the critical group of any age.

Kocher, D.C.; Eckerman, K.F.

1998-11-01T23:59:59.000Z

239

Aging of safety class 1E transformers in safety systems of nuclear power plants  

SciTech Connect (OSTI)

This report discusses aging effects on safety-related power transformers in nuclear power plants. It also evaluates maintenance, testing, and monitoring practices with respect to their effectiveness in detecting and mitigating the effects of aging. The study follows the US Nuclear Regulatory Commission`s (NRC`s) Nuclear Plant-Aging Research approach. It investigates the materials used in transformer construction, identifies stressors and aging mechanisms, presents operating and testing experience with aging effects, analyzes transformer failure events reported in various databases, and evaluates maintenance practices. Databases maintained by the nuclear industry were analyzed to evaluate the effects of aging on the operation of nuclear power plants.

Roberts, E.W.; Edson, J.L.; Udy, A.C. [Lockheed Idaho Technologies Co., Idaho Falls, ID (United States)

1996-02-01T23:59:59.000Z

240

Cultural values and aging in Chinese television commercials  

E-Print Network [OSTI]

of the materialistic nature of advertising, product characteristics, and stereotypical views of aging existed in societyĒ (p. 12). Supporting Zhang and Agard (2004) findings, Zhang, Lien and Song (2006) found that the theme of health/life was promoted in 10... and U.S. television commercials. Journal of Advertising Research, 36, 27-45. Chinese Culture Connection. (1987). Chinese values and the search for culture-free dimensions of culture. Journal of Cross-Cultural Psychology, 18(2), 143-164. Chu, G. C...

Zhang, Yan Bing; Song, Yi; Carver, Christy Leilani Jensen

2008-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "units age age" 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

Testing the consistency between cosmological measurements of distance and age  

E-Print Network [OSTI]

We present a model independent method to test the consistency between cosmological measurements of distance and age, assuming the distance duality relation. We use type Ia supernovae, baryon acoustic oscillations, and observational Hubble data, to reconstruct the luminosity distance D_L(z), the angle averaged distance D_V(z) and the Hubble rate H(z), using Gaussian processes regression technique. We obtain estimate of the distance duality relation in the redshift range 0.1

Nair, Remya; Jain, Deepak

2015-01-01T23:59:59.000Z

242

Coincidence of Universe age in $?$CDM and Milne cosmologies  

E-Print Network [OSTI]

The age of the Universe in the $\\Lambda$CDM cosmology with $\\Omega_{matter}=0.26$ and $\\Omega_{\\Lambda}=0.74$ is the same as in the Milne cosmology which correspods to an almost empty universe. In both cases it is a reciprocal Hubble constant, $1/H_0$, that for now preferred value $H_0=71 km/s/Mpc$ is 13.7 billion years. The most curious coincidence is that at the present time, in the $\\Lambda$CDM model the decelerated expansion is exactly compensated by the accelerated expansion, as if the Universe coast for 13.7 billion years.

M. Kutschera; M. Dyrda

2006-11-09T23:59:59.000Z

243

Accelerated Aging of Roofing Materials | 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:YearRound-Up fromDepartment of Energy 601Department ofEnergyDeployment ofAccelerated Aging

244

Space-Age Ceramics Get Their Toughest Test  

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 MayAtmosphericNuclear Security Administrationcontroller systemsBiSite CulturalDepartment2)isomeraseUSChargeSpaceSpace-Age Ceramics

245

Space-Age Ceramics Get Their Toughest Test  

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 MayAtmosphericNuclear Security Administrationcontroller systemsBiSite CulturalDepartment2)isomeraseUSChargeSpaceSpace-Age

246

Space-Age Ceramics Get Their Toughest Test  

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 JunDatastreamsmmcrcalgovInstrumentsrucLas ConchasPassiveSubmittedStatus Tom Fletcher,Future |Carlos ValenciaSpace DustSpace-Age

247

Space-Age Ceramics Get Their Toughest Test  

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 JunDatastreamsmmcrcalgovInstrumentsrucLas ConchasPassiveSubmittedStatus Tom Fletcher,Future |Carlos ValenciaSpaceSpace-Age Ceramics Get

248

Space-Age Ceramics Get Their Toughest Test  

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 JunDatastreamsmmcrcalgovInstrumentsrucLas ConchasPassiveSubmittedStatus Tom Fletcher,Future |Carlos ValenciaSpaceSpace-Age Ceramics

249

Structural aging program to assess the adequacy of critical concrete components in nuclear power plants  

SciTech Connect (OSTI)

The Structural Aging (SAG) Program is carried out by the Oak Ridge National Laboratory (ORNL) under sponsorship of the United States Nuclear Regulatory Commission (USNRC). The Program has evolved from preliminary studies conducted to evaluate the long-term environmental challenges to light-water reactor safety-related concrete civil structures. An important conclusion of these studies was that a damage methodology, which can provide a quantitative measure of a concrete structure's durability with respect to potential future requirements, needs to be developed. Under the SAG Program, this issue is being addressed through: establishment of a structural materials information center, evaluation of structural component assessment and repair technologies, and development of a quantitative methodology for structural aging determinations. Progress to date of each of these activities is presented as well as future plans. 7 refs., 5 figs.

Naus, D.J.; Marchbanks, M.F.; Oland, C.B.; Arndt, E.G.

1989-01-01T23:59:59.000Z

250

WHOLE-ROCK 87Sr/86Sr COMPOSITION AND APPARENT STRONTIUM ISOTOPIC AGE OF LIMESTONES FROM SITE 1118, WOODLARK RIFT BASIN, SOUTHWEST PACIFIC (OCEAN DRILLING PROGRAM LEG 180)†  

E-Print Network [OSTI]

Limestone from Unit VI (857.1Ė859.15 meters below seafloor) collected at Site 1118 contains a planktonic foraminiferal fauna indicating a latest Miocene to early Pliocene age. Globorotalia tumida is recorded in Sample ...

Allan, Tony; Robertson, Alastair H F; Sharp, Timothy R; Trotter, Julie

2001-01-01T23:59:59.000Z

251

Moessbauer measurements of microstructural change in aged duplex stainless steel  

SciTech Connect (OSTI)

A duplex stainless steel (ASME SA351 CF8M) has usually been manufactured by a continuous casting technique. It consists of a paramagnetic austenite phase and a ferromagnetic ferrite phase. It has been known that the ferrite phase decomposition occurs in this steel after aging between 300 and 450 C. As a result of phase decomposition, a Fe-rich phase and a Cr-rich phase are produced in the ferrite phase. It is difficult to detect the phase decomposition even by not only optical microscopy but also transmission electron microscopy, since the decomposed structure is very fine. However, Moessbauer measurements that can detect the magnetic hyperfine field of magnetic substance may detect the microstructural change. An averaged magnetic hyperfine field increases in the ferrite phase, due to the production of the Fe-rich phase which has high magnetic hyperfine field. Therefore, the authors investigated the phase decomposition of the duplex stainless steel caused by aging, utilization Moessbauer spectroscopy which has capability of detecting this structural change in the atomic level quantitatively. The authors also investigated the potential of backscattering Moessbauer method for NDE technique.

Kirihigashi, A.; Sakamoto, N.; Yamaoka, T. [Mitsubishi Heavy Industries, Ltd., Hyogo (Japan); Nasu, S. [Osaka Univ. (Japan)

1995-08-01T23:59:59.000Z

252

Aging assessment of surge protective devices in nuclear power plants  

SciTech Connect (OSTI)

An assessment was performed to determine the effects of aging on the performance and availability of surge protective devices (SPDs), used in electrical power and control systems in nuclear power plants. Although SPDs have not been classified as safety-related, they are risk-important because they can minimize the initiating event frequencies associated with loss of offsite power and reactor trips. Conversely, their failure due to age might cause some of those initiating events, e.g., through short circuit failure modes, or by allowing deterioration of the safety-related component(s) they are protecting from overvoltages, perhaps preventing a reactor trip, from an open circuit failure mode. From the data evaluated during 1980--1994, it was found that failures of surge arresters and suppressers by short circuits were neither a significant risk nor safety concern, and there were no failures of surge suppressers preventing a reactor trip. Simulations, using the ElectroMagnetic Transients Program (EMTP) were performed to determine the adequacy of high voltage surge arresters.

Davis, J.F.; Subudhi, M. [Brookhaven National Lab., Upton, NY (United States)] [Brookhaven National Lab., Upton, NY (United States); Carroll, D.P. [Florida Univ., Gainesville, FL (United States)] [Florida Univ., Gainesville, FL (United States)

1996-01-01T23:59:59.000Z

253

Preliminary Transportation, Aging and Disposal Canister System Performance Specification  

SciTech Connect (OSTI)

This document provides specifications for selected system components of the Transportation, Aging and Disposal (TAD) canister-based system. A list of system specified components and ancillary components are included in Section 1.2. The TAD canister, in conjunction with specialized overpacks will accomplish a number of functions in the management and disposal of spent nuclear fuel. Some of these functions will be accomplished at purchaser sites where commercial spent nuclear fuel (CSNF) is stored, and some will be performed within the Office of Civilian Radioactive Waste Management (OCRWM) transportation and disposal system. This document contains only those requirements unique to applications within Department of Energy's (DOE's) system. DOE recognizes that TAD canisters may have to perform similar functions at purchaser sites. Requirements to meet reactor functions, such as on-site dry storage, handling, and loading for transportation, are expected to be similar to commercially available canister-based systems. This document is intended to be referenced in the license application for the Monitored Geologic Repository (MGR). As such, the requirements cited herein are needed for TAD system use in OCRWM's disposal system. This document contains specifications for the TAD canister, transportation overpack and aging overpack. The remaining components and equipment that are unique to the OCRWM system or for similar purchaser applications will be supplied by others.

C.A Kouts

2006-11-22T23:59:59.000Z

254

Memory, brain and aging: The good, the bad and the promising  

E-Print Network [OSTI]

in the healthy aging brain. Neu- ropsychology 23(5):541Ė50.Development in the Adult Brain. New York, NY: Oxford Univinfluences on cognitive and brain plasticity during aging. J

Ober, Beth A.

2010-01-01T23:59:59.000Z

255

AGE AND GROWTH OF SKIPJACK TUNA, KATSUWONUS PELAMIS, AND YELLOWFIN TUNA, THUNNUS ALBACARES, AS INDICATED  

E-Print Network [OSTI]

(1971), Marcille and Stequert (1976a), and Diaz3 determined growth rate and estimated the age et al. (1969), Le Guen and Sakagawa (1973), and Marcille and Stequert (1976b) have estimated age

256

E-Print Network 3.0 - ageing management programs Sample Search...  

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

Management 3* AGEC 445 Agribusiness Management 32.0 AGED 140US... Context 3* AGEC 341 Farm & Ranch Management 3* AGEC 445 Agribusiness Management 3 AGED 140 Leadership... 1 | P a...

257

E-Print Network 3.0 - aging management programs Sample Search...  

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

Management 3* AGEC 445 Agribusiness Management 32.0 AGED 140US... Context 3* AGEC 341 Farm & Ranch Management 3* AGEC 445 Agribusiness Management 3 AGED 140 Leadership... 1 | P a...

258

Bioinformatician position available Integrative Genomics of Ageing Group, University of Liverpool  

E-Print Network [OSTI]

Bioinformatician position available Integrative Genomics of Ageing Group, University of Liverpool A bioinformatician position is available in the Integrative Genomics of Ageing Group at the University of Liverpool) systems biology, functional genomics, network analysis, and genome evolution. Applicants should have

259

E-Print Network 3.0 - aged non-human primates Sample Search Results  

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

on populations of wild primates has been difficult Summary: - hawk eagle prey. Age and sex classes of prey We ascertained the age classes of primate prey in nearly... to the...

260

E-Print Network 3.0 - aging non-human primate Sample Search Results  

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

on populations of wild primates has been difficult Summary: - hawk eagle prey. Age and sex classes of prey We ascertained the age classes of primate prey in nearly... to the...

Note: This page contains sample records for the topic "units age age" 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

2014 EXPRESSIVE ROBOTICS Beall Center Camp Registration Form FOR AGES 14 19 years  

E-Print Network [OSTI]

2014 EXPRESSIVE ROBOTICS Beall Center Camp Registration Form FOR AGES 14 19 years Robotics is a twoweek middle/high school aged summer intensive focused on the development of robotic

Loudon, Catherine

262

E-Print Network 3.0 - age estimation Sample Search Results  

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

Search Sample search results for: age estimation Page: << < 1 2 3 4 5 > >> 1 Errors in fish ageing may result in biases in stock assessments and Summary: of fish- eries. Estimates...

263

E-Print Network 3.0 - ageing catechin-based model Sample Search...  

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

search results for: ageing catechin-based model Page: << < 1 2 3 4 5 > >> 1 Errors in fish ageing may result in biases in stock assessments and Summary: models can lead to errors...

264

E-Print Network 3.0 - aged 5-8 weeks Sample Search Results  

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

half day 180 full day 25 Extended hours IN-LINE SKATING AGES 5 - 8 University of Saskatchewan... ,knee and wrist protectors). MINI BASKETBALL AGES 5 - 8 Education Building This...

265

E-Print Network 3.0 - age birth weight Sample Search Results  

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

of age we examined weight (in grams... variables from birth to age seven in a large, community-based birth cohort. A sample of white singleton... development, were assessed at...

266

E-Print Network 3.0 - aged 15-25 years Sample Search Results  

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

Summary: ., 2000; Ledoux et al., 2002) or combined adolescents and young adults into one broad category (ages 15-25... medications) use in a large sample of French youths aged...

267

Exercise training regulation of extracellular matrix and remodeling in the aging rat heart  

E-Print Network [OSTI]

in the aging heart. In contrast, exercise training not only improves cardiac function, but also reduces the risk of heart disease. However, the ability of exercise training to modulate ECM and remodeling in the aging heart remains unknown. Therefore...

Kwak, Hyo Bum

2009-05-15T23:59:59.000Z

268

E-Print Network 3.0 - age groups university Sample Search Results  

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

Non-university minors (under age 18) are not permitted to use this gym at any time. SWIMMING... . The general public, age 18 and older, may use the pool during open swim ......

269

Beyond Tesla and Edison: Other Luminaries from the Age of Electricity...  

Energy Savers [EERE]

Beyond Tesla and Edison: Other Luminaries from the Age of Electricity Beyond Tesla and Edison: Other Luminaries from the Age of Electricity November 25, 2013 - 1:30pm Addthis...

270

Accelerated Thermal Aging of Fe-Zeolite SCR Catalysts Using an...  

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

Thermal Aging of Fe-Zeolite SCR Catalysts Using an Engine-Based Systems Approach Accelerated Thermal Aging of Fe-Zeolite SCR Catalysts Using an Engine-Based Systems Approach This...

271

An Economic Assessment Of Uneven-Aged Forestry Based On The Modelling Of Forestry Operations†  

E-Print Network [OSTI]

In recent years, interest in uneven-aged forestry has been increasing in Britain, particularly for sensitive areas such as recreation and amenity forests. Literature on the economics of uneven-aged forestry is scarce and ...

Shrimpton, Nicole H

272

Rapid Aging and Poisoning Protocols to AssessFuel and Lube Effects...  

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

Rapid Aging and Poisoning Protocols to AssessFuel and Lube Effects on Diesel Aftertreatment (Agreement 13415) Rapid Aging and Poisoning Protocols to AssessFuel and Lube Effects on...

273

E-Print Network 3.0 - age reconsidering ovarian Sample Search...  

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

search results for: age reconsidering ovarian Page: << < 1 2 3 4 5 > >> 1 OVARIAN CANCER 17. OVARIAN CANCER Summary: in NI. The risk of developing ovarian cancer up to the age...

274

Cord blood versus age 5 mononuclear cell proliferation on IgE and asthma  

E-Print Network [OSTI]

mite IgE levels, wheeze, cough, eczema and asthma. Results:and report of wheeze, cough and physician diagnosis ofAge 2 Asthma 1 Wheeze 1 Cough 1 Eczema 1 Age 3 Asthma 1

2010-01-01T23:59:59.000Z

275

E-Print Network 3.0 - ageing model organism Sample Search Results  

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

by tree-ring counts, suggesting inbuilt ages of 0- 670 years. Second, a simulation model that uses... charcoal 14C ages in the same study area suggests that either the...

276

E-Print Network 3.0 - aged 1-5 years Sample Search Results  

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

by tree-ring counts, suggesting inbuilt ages of 0- 670 years. Second, a simulation model that uses... account for inbuilt ages of more than 400 years in this forest type....

277

E-Print Network 3.0 - ages 600-570 ma Sample Search Results  

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

The former age signature is more... , zircons have 2850 Ma cores and 2730 Ma rims. Titanite ages are similar to those from zircon rims... and zircon using LA-ICP-MS. The oldest...

278

POPULATION ECOLOGY -ORIGINAL PAPER The effects of sex, age and breeding success on breeding dispersal  

E-Print Network [OSTI]

hypoleuca) around a point source of heavy metals (a copper smelter). We tested for the effects of sex, age copper smelter). We tested, at the indi- vidual level, for the effects of sex, age, breeding success

Laaksonen, Toni

279

PII S0016-7037(98)00211-7 The young age of Earth  

E-Print Network [OSTI]

PII S0016-7037(98)00211-7 The young age of Earth YOUXUE ZHANG* Department of Geological Sciences form June 8, 1998) Abstract--Patterson (1956) established that the age of Earth is close, disagreement is abundant, and the young age of Earth has not been widely accepted. In this work, I examine all

Zhang, Youxue

280

Extension Eldercare http://fcs.tamu.edu/families/aging/index.php  

E-Print Network [OSTI]

Extension Eldercare http://fcs.tamu.edu/families/aging/index.php Relevance · More than 10://fcs.tamu.edu/families/aging/elder_ care/caregiver_support_websites.php) Improving Health Literacy. Healthy People 2010 defines "health: Changes for Healthy Living [DVD in English or Spanish]: http://fcs.tamu.edu/ families/aging/fall_prevention/video.php

Note: This page contains sample records for the topic "units age age" 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

Aging of HDPE Pipes Exposed to Diesel Lubricant Amelia H. U. Torres1  

E-Print Network [OSTI]

Aging of HDPE Pipes Exposed to Diesel Lubricant Amelia H. U. Torres1 , José R. M. d'Almeida1 behavior of high-density polyethylene pipes by exposure to a diesel lubricant were investigated the analysis performed, physical aging was identified as the aging process occurring when the HDPE pipes came

Paris-Sud XI, Université de

282

A total of 377 peat age-depth relationships were used to quantify Holocene subsidence rates.  

E-Print Network [OSTI]

A total of 377 peat age-depth relationships were used to quantify Holocene subsidence rates. Subsidence rates were calculated using peat ages calibrated to the sidereal time scale and burial depths a polynomial that relates the peat age to the position of sea-level at that time in the past. The "sea

Kulp, Mark

283

TREE vol. 6, no. 1, January 1991 Ice-age Ecology  

E-Print Network [OSTI]

and boggy, unproductive tundra - was aridity. The complex climatic changes of the ice ages produced lowerTREE vol. 6, no. 1, January 1991 Ice-age Ecology FrozenFaunaof the Mammoth Steppe: the Story that existed across much of Europe, Northern Asia and North America during the ice ages, supporting an abundant

Lauder, George V.

284

The Hon Julie Bishop MP Mrs Joanna Gash MP Minister for Ageing Member for Gilmore  

E-Print Network [OSTI]

July 2005 JB114/05 Report highlights tech benefits for aged care New research released today the Australian Government's approach to encouraging the uptake of information technology in the aged care sector. Ms Bishop said the report, Capacity and Willingness of Residential Aged Care Workers to Use

Yu, Ping

285

Does Foraging Performance Change with Age in Female Little Penguins (Eudyptula minor)?  

E-Print Network [OSTI]

Foundation and the Japan Society for the Promotion of Science. The funders had no role in study design, data parameters were recorded with accelerometers for birds grouped into three age-classes: (1) young, (2) middle age and (3) old females. We found the diving behaviour of middle- aged birds differed from young

Boyer, Edmond

286

Worms need microbes too: microbiota, health and aging in Caenorhabditis elegans  

E-Print Network [OSTI]

*, David Gems Keywords: aging; C. elegans; metformin; microbiota; type-2 diabetes DOI 10.1002/emmm, diabetes, metabolic syndrome, autoimmune disorders, inflam- matory bowel disease, cancer and aging (Cho and type-2 diabetes, and perhaps aging. These morbidities have a profound impact in terms of individual

Gems, David

287

ON THE LINEAR GROWTH OF THE SPLITANDMERGE SIMULATION TREE FOR A MULTICOMPONENT AGE REPLACEMENT MODEL  

E-Print Network [OSTI]

ON THE LINEAR GROWTH OF THE SPLIT­AND­MERGE SIMULATION TREE FOR A MULTICOMPONENT AGE REPLACEMENT Functional estimation, split­and­merge tree, opti­ mization, maintenance models, age replacement poli­ cies Abstract We a consider a replacement policy based on age thresholds, for a multicomponent system. We want

V√°zquez-Abad, Felisa J.

288

Slow exhumation of UHP terranes: Titanite and rutile ages of the Western Gneiss Region, Norway  

E-Print Network [OSTI]

Slow exhumation of UHP terranes: Titanite and rutile ages of the Western Gneiss Region, Norway A: titanite rutile geochronology ultrahigh-pressure Norway U­Pb ages of titanite and rutile were obtained from of the Western Gneiss UHP terrane. Approximately half of the titanite ages are concordant, the majority of which

Hacker, Bradley R.

289

Accepted Manuscript Title: Evolving a Bayesian Classifier for ECG-based Age  

E-Print Network [OSTI]

Accepted Manuscript Title: Evolving a Bayesian Classifier for ECG-based Age Classification, A. Saad, B. Litt, G. Vachtsevanos, Evolving a Bayesian Classifier for ECG-based Age Classification that apply to the journal pertain. #12;AcceptedManuscript 1 Evolving a Bayesian Classifier for ECG-based Age

Litt, Brian

290

Material compatibility and thermal aging of thermoelectric materials.  

SciTech Connect (OSTI)

In order to design a thermoelectric (TE) module suitable for long-term elevated temperature use, the Department 8651 has conducted parametric experiments to study material compatibility and thermal aging of TE materials. In addition, a comprehensive material characterization has been preformed to examine thermal stability of P- and N-based alloys and their interaction with interconnect diffusion barrier(s) and solder. At present, we have completed the 7-days aging experiments for 36 tiles, from ambient to 250 C. The thermal behavior of P- and N-based alloys and their thermal interaction with both Ni and Co diffusion barriers and Au-Sn solder were examined. The preliminary results show the microstructure, texture, alloy composition, and hardness of P-(Bi,Sb){sub 2}Te{sub 3} and N-Bi{sub 2}(Te,Se){sub 3} alloys are thermally stable up to 7 days annealing at 250 C. However, metallurgical reactions between the Ni-phosphor barriers and P-type base alloy were evident at temperatures {ge} 175 C. At 250 C, the depth (or distance) of the metallurgical reaction and/or Ni diffusion into P-(Bi,Sb){sub 2}Te{sub 3} is approximately 10-15 {micro}m. This thermal instability makes the Ni-phosphor barrier unsuitable for use at temperatures {ge} 175 C. The Co barrier appeared to be thermally stable and compatible with P(Bi,Sb){sub 2}Te{sub 3} at all annealing temperatures, with the exception of a minor Co diffusion into Au-Sn solder at {ge} 175 C. The effects of Co diffusion on long-term system reliability and/or the thermal stability of the Co barrier are yet to be determined. Te evaporation and its subsequent reaction with Au-Sn solder and Ni and Co barriers on the ends of the tiles at temperatures {ge} 175 C were evident. The Te loss and its effect on the long-term required stoichiometry of P-(Bi, Sb){sub 2}Te{sub 3} are yet to be understood. The aging experiments of 90 days and 180 days are ongoing and scheduled to be completed in 30 days and 150 days, respectively. Material characterization activities are continuing for the remaining tiles.

Gardea, Andrew D.; Nishimoto, Ryan; Yang, Nancy Y. C.; Morales, Alfredo Martin; Whalen, Scott A.; Chames, Jeffrey M.; Clift, W. Miles

2009-09-01T23:59:59.000Z

291

Ice Age Epochs and the Sun's Path Through the Galaxy  

E-Print Network [OSTI]

We present a calculation of the Sun's motion through the Milky Way Galaxy over the last 500 million years. The integration is based upon estimates of the Sun's current position and speed from measurements with Hipparcos and upon a realistic model for the Galactic gravitational potential. We estimate the times of the Sun's past spiral arm crossings for a range in assumed values of the spiral pattern angular speed. We find that for a difference between the mean solar and pattern speed of Omega_Sun - Omega_p = 11.9 +/- 0.7 km/s/kpc the Sun has traversed four spiral arms at times that appear to correspond well with long duration cold periods on Earth. This supports the idea that extended exposure to the higher cosmic ray flux associated with spiral arms can lead to increased cloud cover and long ice age epochs on Earth.

D. R. Gies; J. W. Helsel

2005-03-14T23:59:59.000Z

292

LONG TERM AGING AND SURVEILLANCE OF 9975 PACKAGE COMPONENTS  

SciTech Connect (OSTI)

The mission of the 9975 package, originally designed only for transportation of radioactive materials, has been broadened to include storage at the Savannah River Site. Two components of this package, namely the containment vessel O-rings and fiberboard overpack, require continued integrity assessment under the storage conditions. The performance of the components over time is being evaluated using accelerated-aging studies. Compression stress relaxation (CSR) and leak testing are being used to measure the performance of O-rings. The performance of the fiberboard is being evaluated using compression strength, thermal conductivity, specific heat capacity and other physical properties. Models developed from the data collected provide an initial prediction of service life for the two components, and support the conclusion that normal service conditions will not degrade the performance of the package beyond specified functional requirements for the first assessment interval. Increased confidence in this conclusion is derived from field surveillance data and destructive evaluation of packages removed from storage.

Hoffman, E.; Skidmore, E.; Daugherty, W.; Dunn, K.

2009-11-10T23:59:59.000Z

293

Fuel age impacts on gaseous fission product capture during separations  

SciTech Connect (OSTI)

As a result of fuel reprocessing, volatile radionuclides will be released from the facility stack if no processes are put in place to remove them. The radionuclides that are of concern in this document are 3H, 14C, 85Kr, and 129 Rosnick 2007 I. The question we attempt to answer is how efficient must this removal process be for each of these radionuclides? To answer this question, we examine the three regulations that may impact the degree to which these radionuclides must be reduced before process gases can be released from the facility. These regulations are 40 CFR 61 (EPA 2010a), 40 CFR 190(EPA 2010b), and 10 CFR 20 (NRC 2012), and they apply to the total radonuclide release and to the dose to a particular organ Ė the thyroid. Because these doses can be divided amongst all the radionuclides in different ways and even within the four radionuclides in question, several cases are studied. These cases consider for the four analyzed radionuclides inventories produced for three fuel typesópressurized water reactor uranium oxide (PWR UOX), pressurized water reactor mixed oxide (PWR MOX), and advanced high-temperature gascooled reactor (AHTGR)óseveral burnup values and time out of reactor extending to 200 y. Doses to the maximum exposed individual (MEI) are calculated with the EPA code CAP-88 ( , 1992). Two dose cases are considered. The first case, perhaps unrealistic, assumes that all of the allowable dose is assigned to the volatile radionuclides. In lieu of this, for the second case a value of 10% of the allowable dose is arbitrarily selected to be assigned to the volatile radionuclides. The required decontamination factors (DFs) are calculated for both of these cases, including the case for the thyroid dose for which 14C and 129I are the main contributors. However, for completeness, for one fuel type and burnup, additional cases are provided, allowing 25% and 50% of the allowable dose to be assigned to the volatile radionuclides. Because 3H and 85Kr have relatively short half-lives, 12.3 y and 10.7 y, respectively, the dose decreases with the time from when the fuel is removed from the reactor to the time it is processed (herein ďfuel ageĒ). One possible strategy for limiting the discharges of these short halflife radionuclides is to allow the fuel to age to take advantage of radioactive decay. Therefore, the doses and required DFs are calculated as a function of fuel age. Here we calculate, given the above constraints and assumptions, the minimum ages for each fuel type that would not require additional effluent controls for the shorter half-life volatile radionuclides based on dose considerations. With respect to 129I doses, we find that the highest dose is calculated with iodine as a fine particulate. The dose scales as the fraction of the total 129I that is particulate. Therefore, we assume for all of our calculations that 100% of the 129I is particulate and allow the user of the results given here to scale our calculated doses to their needs. To summarize the data given in the body and appendices of this report, we find that the principal isotopes of concern are 3H and 129I, the latter requiring the highest DFs. The maximum DF value for 129I is 8000 for the illustrated cases. The required DF for 3H could be as high as 720, depending on the age of the fuel processed. The DF for 85Kr could be up to ~60, depending on fuel age. The DF for 14C is in many cases 1 (no treatment required) but could be as high as 30. The DFs required are within the range of DFs that are reported for the capture technologies that are available for the volatile radionuclides. Achieving the required 129I and 3H DFs is more challenging. Variations in stack design and other design factors may also significantly impact the DF requirements.

Jubin, Robert T.; Soelberg, Nicolas R.; Strachan, Denis M.; Ilas, G.

2012-09-21T23:59:59.000Z

294

A Review of "Humanism in an Age of Science: The Amsterdam Athenaeum in the Golden Age, 1632-1704" by Dirk van Miert  

E-Print Network [OSTI]

reviews 225 Dirk van Miert. Humanism in an Age of Science: The Amsterdam Athenaeum in the Golden Age, 1632-1704. Leiden and Boston: Brill, 2009. xiv + 433 pp. + 11 illus. + 3 appendices. $147.00. Review by joseph m. mccarthy, suffolk...

McCarthy, Joseph M.

2010-01-01T23:59:59.000Z

295

A BAYESIAN APPROACH TO DERIVING AGES OF INDIVIDUAL FIELD WHITE DWARFS  

SciTech Connect (OSTI)

We apply a self-consistent and robust Bayesian statistical approach to determine the ages, distances, and zero-age main sequence (ZAMS) masses of 28 field DA white dwarfs (WDs) with ages of approximately 4-8 Gyr. Our technique requires only quality optical and near-infrared photometry to derive ages with <15% uncertainties, generally with little sensitivity to our choice of modern initial-final mass relation. We find that age, distance, and ZAMS mass are correlated in a manner that is too complex to be captured by traditional error propagation techniques. We further find that the posterior distributions of age are often asymmetric, indicating that the standard approach to deriving WD ages can yield misleading results.

O'Malley, Erin M. [Department of Physics and Astronomy, Siena College, Loudonville, NY 12211 (United States); Von Hippel, Ted [Department of Physical Sciences, Embry-Riddle Aeronautical University, Daytona Beach, FL 32114 (United States); Van Dyk, David A., E-mail: ted.vonhippel@erau.edu, E-mail: dvandyke@imperial.ac.uk [Statistics Section, Department of Mathematics, Imperial College London, SW7 2AZ (United Kingdom)

2013-09-20T23:59:59.000Z

296

Age-associated impaired plasmacytoid dendritic cell functions lead to decreased CD4 and CD8 T cell immunity.  

E-Print Network [OSTI]

plasmacytoid dendritic cell (PDC) function because they areof the antigen- presenting capacity of aged PDC withyoung PDC revealed that PDCs from aged subjects display

2011-01-01T23:59:59.000Z

297

Aging management of nuclear power plant containments for license renewal  

SciTech Connect (OSTI)

In 1990, the Nuclear Management and Resources Council (NUMARC), now the Nuclear Energy Institute (NEI), submitted for NRC review, the industry reports (IRs), NUMARC Report 90-01 and NUMARC Report 90-10, addressing aging management issues associated with PWR containments and BWR containments for license renewal, respectively. In 1996, the Commission amended 10 CFR 50.55a to promulgate requirements for inservice inspection of containment structures. This rule amendment incorporates by reference the 1992 Edition with the 1992 Addenda of Subsections IWE and IWL of the ASME Code addressing the inservice inspection of metal containments/liners and concrete containments, respectively. The purpose of this report is to reconcile the technical information and agreements resulting from the NUMARC IR reviews which are generally described in NUREG-1557 and the inservice inspection requirements of subsections IWE and IWL as promulgated in {section}50.55a for license renewal consideration. This report concludes that Subsections IWE and IWL as endorsed in {section}50.55a are generally consistent with the technical agreements reached during the IR reviews. Specific exceptions are identified and additional evaluations and augmented inspections for renewal are recommended.

Liu, W.C.; Kuo, P.T.; Lee, S.S.

1997-09-01T23:59:59.000Z

298

The Age and Metallicity of the Bootes I System  

E-Print Network [OSTI]

We present Washington photometry of a field central to the Bootes I dwarf spheroidal galaxy, which was discovered as a stellar overdensity in the Sloan Digital Sky Survey (DR5). We show that the Washington filters are much more effective than the Sloan filters in separating the metal-poor turn-off stars in the dwarf galaxy from the foreground stars. We detect 165 objects in the field, and statistically determine that just over 40% of the objects are non-members. Our statistical analysis mostly agrees with radial velocity measurements of the brighter stars. We find that that there is a distinct main-sequence turn-off and subgiant branch, where there is some evidence of a spread in chemical abundance. Any evidence of an age spread is limited to a few billion years. The brightest 7 Bootes I members give a (photometric-color derived) weighted mean iron-abundance of [Fe/H]=-2.1+/-0.4, and the best-fit isochrone is the 14.1 Gyr, Z=0.0002 model, with DM=19.11 and E(B-V)=0.02.

Joanne Hughes; George Wallerstein; Anne Bossi

2008-10-23T23:59:59.000Z

299

Ferrocyanide safety project ferrocyanide aging studies. Final report  

SciTech Connect (OSTI)

This final report gives the results of the work conducted by Pacific Northwest National Laboratory (PNNL) from FY 1992 to FY 1996 on the Ferrocyanide Aging Studies, part of the Ferrocyanide Safety Project. The Ferrocyanide Safety Project was initiated as a result of concern raised about the safe storage of ferrocyanide waste intermixed with oxidants, such as nitrate and nitrite salts, in Hanford Site single-shell tanks (SSTs). In the laboratory, such mixtures can be made to undergo uncontrolled or explosive reactions by heating dry reagents to over 200{degrees}C. In 1987, an Environmental Impact Statement (EIS), published by the U.S. Department of Energy (DOE), Final Environmental Impact Statement, Disposal of Hanford Defense High-Level Transuranic and Tank Waste, Hanford Site, Richland, Washington, included an environmental impact analysis of potential explosions involving ferrocyanide-nitrate mixtures. The EIS postulated that an explosion could occur during mechanical retrieval of saltcake or sludge from a ferrocyanide waste tank, and concluded that this worst-case accident could create enough energy to release radioactive material to the atmosphere through ventilation openings, exposing persons offsite to a short-term radiation dose of approximately 200 mrem. Later, in a separate study (1990), the General Accounting Office postulated a worst-case accident of one to two orders of magnitude greater than that postulated in the DOE EIS. The uncertainties regarding the safety envelope of the Hanford Site ferrocyanide waste tanks led to the declaration of the Ferrocyanide Unreviewed Safety Question (USQ) in October 1990.

Lilga, M.A.; Hallen, R.T.; Alderson, E.V. [and others

1996-06-01T23:59:59.000Z

300

Oxide Film Aging on Alloy 22 in Halide Containing Solutions  

SciTech Connect (OSTI)

Passive and corrosion behaviors of Alloy 22 in chloride and fluoride containing solutions, changing the heat treatment of the alloy, the halide concentration and the pH of the solutions at 90 deg. C, was investigated. The study was implemented using electrochemical techniques, which included open circuit potential monitoring over time, potentiodynamic polarization and electrochemical impedance spectroscopy (EIS) measurements carried out at open circuit and at passivity potentials. Corrosion rates obtained by EIS measurements after 24 h immersion in naturally aerated solutions were below 0.5 {mu}m/year. The corrosion rates were practically independent of solution pH, alloy heat treatment and halide ion nature and concentration. EIS low frequency resistance values increased with applied potential in the passive domain and with polarization time in pH 6 - 1 M NaCl at 90 deg. C. This effect was attributed to an increase in the oxide film thickness and oxide film aging. High frequency capacitance measurements indicated that passive oxide on Alloy 22 presented a double n-type/p-type semiconductor behavior in the passive potential range. (authors)

Rodriguez, Martin A.; Carranza, Ricardo M. [Dept. Materiales, Comision Nacional de Energia Atomica, Av. Gral. Paz 1499, Villa Maipu, 1650 (Argentina); Rebak, Raul B. [Lawrence Livermore National Laboratory, 7000 East Ave, L-631, Livermore, CA, 94550-9698 (United States)

2007-07-01T23:59:59.000Z

Note: This page contains sample records for the topic "units age age" 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

On the Lengths, Colours and Ages of Bars  

E-Print Network [OSTI]

Abstract. In an effort to obtain further observational evidences for secular evolution processes in galaxies, as well as observational constraints to current theoretical models of secular evolution, we have used BVRI and Ks images of a sample of 18 barred galaxies to measure the lengths and colours of bars, create colour maps and estimate global colour gradients. In addition, applying a method we developed in a previous article, we could distinguish for 7 galaxies in our sample those whose bars have been recently formed from the ones with already evolved bars. We estimated an average difference in the optical colours between young and evolved bars that may be translated to an age difference of the order of 10 Gyr, meaning that bars may be long standing structures. Moreover, our results show that, on average, evolved bars are longer than young bars. This seems to indicate that, during its evolution, a bar grows longer by capturing stars from the disk, in agreement with recent numerical and analytical results.

F. Combes; J. Palous; Dimitri A. Gadotti; Ronaldo E. De Souza

2006-01-01T23:59:59.000Z

302

Organic tanks safety program FY95 waste aging studies  

SciTech Connect (OSTI)

This report gives the second year`s findings of a study of how thermal and radiological processes may change the composition of organic compounds in the underground tanks at Hanford. Efforts were focused on the global reaction kinetics in a simulated waste exposed to {gamma} rays and the reactions of organic radicals with nitrite ion. The gas production is predominantly radiolytic. Decarboxylation of carboxylates is probably an aging pathway. TBP was totaly consumed in almost every run. Radiation clearly accelerated consumption of the other compounds. EDTA is more reactive than citrate. Oximes and possibly organic nitro compounds are key intermediates in the radiolytic redox reactions of organic compounds with nitrate/nitrite. Observations are consistent with organic compounds being progressively degraded to compounds with greater numbers of C-O bonds and fewer C-H and C-C bonds, resulting in an overall lower energy content. If the radwaste tanks are adequately ventilated and continually dosed by radioactivity, their total energy content should have declined. Level of risk depends on how rapidly carboxylate salts of moderate energy content (including EDTA fragments) degrade to low energy oxalate and formate.

Camaioni, D.M.; Samuels, W.D.; Clauss, S.A.; Lenihan, B.D.; Wahl, K.L.; Campbell, J.A.; Shaw, W.J.

1995-09-01T23:59:59.000Z

303

Aging and Fracture of Human Cortical Bone and Tooth Dentin  

SciTech Connect (OSTI)

Mineralized tissues, such as bone and tooth dentin, serve as structural materials in the human body and, as such, have evolved to resist fracture. In assessing their quantitative fracture resistance or toughness, it is important to distinguish between intrinsic toughening mechanisms which function ahead of the crack tip, such as plasticity in metals, and extrinsic mechanisms which function primarily behind the tip, such as crack bridging in ceramics. Bone and dentin derive their resistance to fracture principally from extrinsic toughening mechanisms which have their origins in the hierarchical microstructure of these mineralized tissues. Experimentally, quantification of these toughening mechanisms requires a crack-growth resistance approach, which can be achieved by measuring the crack-driving force, e.g., the stress intensity, as a function of crack extension ("R-curve approach"). Here this methodology is used to study of the effect of aging on the fracture properties of human cortical bone and human dentin in order to discern the microstructural origins of toughness in these materials.

Ager, Joel; Koester, Kurt J.; Ager III, Joel W.; Ritchie, Robert O.

2008-05-07T23:59:59.000Z

304

SED, Age and Metallicity of Star Clusters in M33  

E-Print Network [OSTI]

In this paper we present CCD spectrophotometry of the star clusters that were detected by Chandar, Bianchi, & Ford in the nearby spiral galaxy M33, using the images obtained with the Beijing Astronomical Observatory 60/90 cm Schmidt Telescope in 13 intermediate-band filters from 3800 to 10000{\\AA}. The observations cover the whole area of M33 with a total integration of 32.75 hours from September 23, 1995 to August 28, 2000. This provides a multi-color map of M33 in pixels of $1.7'' \\times 1.7''$. By aperture photometry, we obtain the spetral energy distributions (SEDs) of these star clusters. Using theoretical stellar population synthesis models, we also obtain the distributions of age and metallicity of of these star clusters. These clusters formed continuously from $\\sim 3\\times10^6$ -- $10^{10}$ years, and have a large span of metallicity from ${\\rm {Z}=0.0004}$ to ${\\rm {Z}=0.05}$.

Ma, J; Kong, X; Wu, H; Chen, J; Jiang, Z; Zhu, J; Xue, S; Ma, Jun; Zhou, Xu; Kong, Xu; Wu, Hong; Chen, Jiansheng; Jiang, Zhaoji; Zhu, Jin; Xue, Suijian

2001-01-01T23:59:59.000Z

305

PREDICTING GLOBAL MEASURES OF DEVELOPMENT AT 18-MONTHS OF AGE FROM SPECIFIC MEASURES OF COGNITIVE ABILITY AT 10-MONTHS OF AGE  

E-Print Network [OSTI]

on tasks that are presumably EF- related during infancy, there is a noticeable gap in the EF research for children between the ages of one- and three-years; this is especially true between the ages of one and two years. McGuigan and Nunez (2006) related... the development of EF within this age group, McGuigan and Nunez (2006) used a modified version of the detour reaching task. In the infant version of this task, a desired object is placed in a transparent box within the infants reach; however, the closed side...

Schmeidler, Tasha Diane

2009-12-09T23:59:59.000Z

306

Aging of Class 1E batteries in safety systems of nuclear power plants  

SciTech Connect (OSTI)

This report presents the results of a study of aging effects on safety-related batteries in nuclear power plants. The purpose is to evaluate the aging effects caused by operation within a nuclear facility and to evaluate maintenance, testing, and monitoring practices with respect to their effectiveness in detecting and mitigating the effects of aging. The study follows the US Nuclear Regulatory Commission's (NRC's) Nuclear Plant-Aging Research approach and investigates the materials used in battery construction, identifies stressors and aging mechanisms, presents operating and testing experience with aging effects, analyzes battery-failure events reported in various data bases, and evaluates recommended maintenance practices. Data bases that were analyzed included the NRC's Licensee Event Report system, the Institute for Nuclear Power Operations' Nuclear Plant Reliability Data System, the Oak Ridge National Laboratory's In-Plant Reliability Data System, and The S.M. Stoller Corporation's Nuclear Power Experience data base.

Edson, J.L.; Hardin, J.E.

1987-07-01T23:59:59.000Z

307

An Independent Calibration of Stellar Ages: HST Observations of White Dwarfs at V=25  

E-Print Network [OSTI]

The white dwarf luminosity function of a stellar cluster will have a sharp truncation at a luminosity which is determined by the time since formation of the first white dwarfs in that cluster. Calculation of the dependence of this limiting luminosity on age requires relatively well-understood physics and is independent of stellar evolutionary models. Thus, measurement of the termination of the white dwarf luminosity function provides an independent method to determine the age of a cluster, and thereby to calibrate stellar evolutionary ages. We have obtained HST WFPC2 data in two open clusters, identified the white dwarf sequence, and proved the feasibility of this approach, by detecting white dwarfs to V=25. Much deeper data are feasible. From our present limited data, we show that degenerate cooling ages are not consistent with some published isochrone ages for clusters with ages of order 1Gyr.

Ted von Hippel; Gerard Gilmore; D. H. P. Jones

1995-01-18T23:59:59.000Z

308

PRAAGE-1988: An interactive IBM-PC code for aging analysis of NUREG-1150 systems  

SciTech Connect (OSTI)

Probabilistic Risk Assessments (PRA) contain a great deal of information for estimating the risk of a nuclear power plant but do not consider aging. PRAAGE (PRA+AGE) is an interactive, IBM-PC code for processing PRA-developed system models using non-aged failure rate data in conjunction with user-supplied time-dependent nuclear plant experience component failure rate data to determine the effects of component aging on a system's reliability as well as providing the age-dependent importances of various generic components. This paper describes the structure, use and application of PRAAGE to the aging analysis of the Peach Bottom 2 RHR system in the LPCI and SDC modes of operation. 4 refs., 15 figs., 5 tabs.

Fullwood, R.R.; Shier, W.G.

1988-01-01T23:59:59.000Z

309

Age of an Indonesian Fossil Tooth Determined by Electron Paramagnetic Resonance  

SciTech Connect (OSTI)

The first fossil hominid tooth recovered during 1999 excavations from the Cisanca River region in West Java, Indonesia, was associated with a series of bovid teeth from a single individual that was recovered 190 cm beneath the hominid tooth. The age of the fossil bovid teeth was determined using electron paramagnetic resonance (EPR) analysis as part of an effort to bracket the age of the hominid tooth. The EPR-derived age of the bovid teeth is (5.16 {+-} 2.01) x 10{sup 5} years. However, the age estimate reported here is likely an underestimate of the actual age of deposition since evidence of heating was detected in the EPR spectra of the bovid teeth, and the heating may have caused a decrease in the intensity of EPR components on which the age calculation is based.

Bogard, JS

2004-04-07T23:59:59.000Z

310

Environments of powerful radio galaxies through the cosmic ages  

E-Print Network [OSTI]

I define 3 samples of extragalactic radio sources of type FRII, containing 26 objects in total. The control sample consists of 6C and 7C sources with radio-luminosities of around 10E27 W\\Hz at 151 MHz and z~1. The other samples contain 3CRR sources with either comparable redshifts but radio luminosities about a decade larger or with comparable radio-luminosities but redshifts around z~0.4. These samples are used to investigate the possible evolution of depolarisation and rotation measure properties with redshift and radio luminosity independently. I use the \\citet{kat97} model with 3 flux measurements to estimate the density of the source environment, source age and jet power. Depolarisation and variations in the rotation measure were found to be insensitive to changes in the density of the source environment. This indicates that depolarisation and variations in the rotation measure are not density indicators but map how the disorder in the magnetic field changes with redshift. The model is then used on a larger set of FRII sources taken from the complete 3CRR, 6CE and 7C III samples. I find that the density of the source environment is a strong function of the source radio-luminosity but is insensitive to changes in redshift. The jet power is also a strong function of radio-luminosity but also a weak function of redshift. This indicates that the mass of the black-hole powering FRII sources is epoch dependent. In general, I find that the source environment is dominated by changes in the radio-luminosity but is relatively unaffected by changes in cosmic epoch.

Julie-Ann Goodlet

2006-02-16T23:59:59.000Z

311

E-Print Network 3.0 - aged nonhuman primates Sample Search Results  

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

and Medicine 35 International Journal of Primatology, Vol. 22, No. 5, 2001 Primate Innovation: Sex, Age and Social Rank Summary: in the nonhuman primates, focusing on sex,...

312

E-Print Network 3.0 - aged 2-36 months Sample Search Results  

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

Tobacco Smoke, and Summary: prospectively. Results: By 12 months of age, more cough and wheeze were reported in children exposed to prenatal... to increased respiratory...

313

E-Print Network 3.0 - abundance age size Sample Search Results  

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

highly correlated with spawning stock size (Fig. 1A... herring abundance index for the North Sea, the larval production estimate, utilizes all size and age... attain a maximum...

314

E-Print Network 3.0 - aged black garlic Sample Search Results  

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

to all, regardless of race, color, national origin, sex, religion, age, disability, political beliefs, sexual orientation, o Summary: programs and employment are open to all,...

315

E-Print Network 3.0 - aged garlic extract Sample Search Results  

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

to all, regardless of race, color, national origin, sex, religion, age, disability, political beliefs, sexual orientation, o Summary: programs and employment are open to all,...

316

E-Print Network 3.0 - aging raw cattle Sample Search Results  

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

7 to 18 months of age... ,381 cattle that were exclud- ed from the ... Source: Singer, Randall - College of Veterinary Medicine, University of Minnesota Collection: Biology and...

317

Distribution of terrestrial age and petrologic type of meteorites from western Libya  

SciTech Connect (OSTI)

A group of 54 meteorites have been recovered from Daraj, Western Libya. After assessment of pairing of samples, using petrologic criteria, {sup 14}C terrestrial ages were obtained on 13 samples selected from 9 different fall events. Eleven of the ages range from 3,500 to 7,600 years, with only two samples having ages in excess of 10,000 years. The cut-off in ages may be related to the timing of climatic changes in the Hammadah al Hamra.

Jull, A.J.T.; Donahue, D.J. (Univ. of Arizona, Tucson (USA)); Wlotzka, F.; Palme, H. (Max-Planck-Institut fuer Chemie, Mainz (West Germany))

1990-10-01T23:59:59.000Z

318

E-Print Network 3.0 - aging aircraft wiring Sample Search Results  

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

wiring of that age... in an older aircraft. 1 12; aircraft wiring, and electromagnetic interference issues. Section 4 refutes... and wet" wire were ... Source: Ladkin, Peter...

319

andropausal middle-aged men: Topics by E-print Network  

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

globulin (alternatively known as a binding protein) (SHBG), prolactin (PRL), estrone (E 1), and cortisol (CRT). Age was measured in years. Adjusted analyses added...

320

Optimal management on uneven-aged Scots pine stands in Finland.  

E-Print Network [OSTI]

??The purpose of this study was to define economically optimal stand structures and harvesting cycles for uneven-aged Scots pine (Pinus sylvestris L.) in Finland. AccordingÖ (more)

Ršsšnen, Jenni

2013-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "units age age" 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

E-Print Network 3.0 - age fortified settlements Sample Search...  

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

aver- age value. The other counties have lower values than the state average... term care facilities are located in the region. Several facilities, such as the Council on ......

322

E-Print Network 3.0 - accelerated ageing syndrome Sample Search...  

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

syndrome Search Powered by Explorit Topic List Advanced Search Sample search results for: accelerated ageing syndrome Page: << < 1 2 3 4 5 > >> 1 April 12, 1996 Studying Rare...

323

E-Print Network 3.0 - aged silicone elastomers Sample Search...  

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

Vol.6 No. 5, October1999 695 Hydrophobicity Loss and Recovery of Summary: -carbon and the backbone silicon-oxygen, together determinethe course of aging above 200C....

324

E-Print Network 3.0 - age randomised controlled Sample Search...  

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

Sample search results for: age randomised controlled Page: << < 1 2 3 4 5 > >> 1 Health Technology Assessment (HTA) publications by government priority area Page 1 of 35 Project...

325

E-Print Network 3.0 - aging female sencar Sample Search Results  

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

sencar Search Powered by Explorit Topic List Advanced Search Sample search results for: aging female sencar Page: << < 1 2 3 4 5 > >> 1 Journal of Innovative Optical Health...

326

E-Print Network 3.0 - aged 21-64 years Sample Search Results  

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

at least 18 years old": context Vehicle inv: self. owner. age > 18... ..* ownershipowner fleet "A vehicle owner must be at least 18 ... Source: Beckert, Bernhard - Fachbereich...

327

E-Print Network 3.0 - aged 45-84 years Sample Search Results  

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

at least 18 years old": context Vehicle inv: self. owner. age > 18... ..* ownershipowner fleet "A vehicle owner must be at least 18 ... Source: Beckert, Bernhard - Fachbereich...

328

E-Print Network 3.0 - aged 15-59 years Sample Search Results  

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

at least 18 years old": context Vehicle inv: self. owner. age > 18... ..* ownershipowner fleet "A vehicle owner must be at least 18 ... Source: Beckert, Bernhard - Fachbereich...

329

E-Print Network 3.0 - aged 20-46 years Sample Search Results  

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

at least 18 years old": context Vehicle inv: self. owner. age > 18... ..* ownershipowner fleet "A vehicle owner must be at least 18 ... Source: Beckert, Bernhard - Fachbereich...

330

E-Print Network 3.0 - adult age groups Sample Search Results  

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

showed different patterns... adults performed similarly. Both age groups showed a trade-off in memory for the negative scenes... adults typically en- code, and remember, ......

331

E-Print Network 3.0 - age prediction models Sample Search Results  

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

2009 The Authors 65 Summary: and longevity in model organisms, a curated database of genes potentially associated with human aging... discoveries in the genetics of...

332

E-Print Network 3.0 - aging biology Sample Search Results  

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

biology Search Powered by Explorit Topic List Advanced Search Sample search results for: aging biology Page: << < 1 2 3 4 5 > >> 1 SSSeeevvveeennnttteeeeeennnttthhh...

333

E-Print Network 3.0 - age-related biological activity Sample...  

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

Washington University in St. Louis Collection: Biology and Medicine 2 Dispatch R939 Cognitive aging: New answers to old questions Summary: cerebral blood flow, as well as neural...

334

Animated agents in K-12 engineering outreach: Preferred agent characteristics across age levels  

E-Print Network [OSTI]

agent characteristics were assessed using survey methodology: agent gender, age, real- ism, clothing; Perez & Solomon, 2005; Wang et al., 2008). The current study investigates learner preferences

Reisslein, Martin

335

ALL DAYS ARE HAPPY DAYS A Camp for children ages 6-11 who have ADHD  

E-Print Network [OSTI]

-13, 2014 NAME ______________________________AGE ______SEX M/ F____ PREFFERED NAME_______________ HOME PHONE___________________CELL PHONE_______________________MAY WE TEXT YOU?______ ADDRESS __________________________________________________Date_________________________ REFERENCES 1.______________________________________RELATIONSHIP_______________________PHONE

Cui, Yan

336

E-Print Network 3.0 - age discriminates neonatal Sample Search...  

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

and age of neonates; length of ... Source: South Dakota State University, Climate Change and Prairie Wetlands Program Collection: Environmental Sciences and Ecology ;...

337

E-Print Network 3.0 - aging tests ii Sample Search Results  

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

Technologies and Information Sciences ; Engineering 12 1178 IEEE TRANSACTIONS ON IMAGE PROCESSING, VOL. 17, NO. 7, JULY 2008 Image-Based Human Age Estimation by Manifold...

338

On the Increasing Fragility of Human Teeth with Age: A Deep-Ultraviolet Resonance Raman Study  

E-Print Network [OSTI]

respect to age and osteoporosis. Bone 19:479-484. Zioupos P,L. J. Melton, editors Osteoporosis: Etiology, Diagnosis, andmetabolic diseases such as osteoporosis; however, the Page

2006-01-01T23:59:59.000Z

339

E-Print Network 3.0 - age baby gender Sample Search Results  

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

but Summary: of labour allocation and politics around gender, caste, and age (Nightingale, 2003). Work... Introduction Gender has long been recognised as important within...

340

E-Print Network 3.0 - age fracture mechanics Sample Search Results  

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

fracture mechanics Search Powered by Explorit Topic List Advanced Search Sample search results for: age fracture mechanics Page: << < 1 2 3 4 5 > >> 1 1. RESERVOIR CHARACTERIZATION...

Note: This page contains sample records for the topic "units age age" 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

Ar-40/Ar-39 Age Constraints for the Jaramillo Normal Subchron...  

Open Energy Info (EERE)

oxygen isotope, climate record calibration of the astronomical timescale proposed by Johnson (1982) and Shackleton et al. (1990). Ar-40Ar-39 ages of a normally magnetized...

342

adults aged 18-64: Topics by E-print Network  

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

The "Aging in Place" project strives to delay taking that first step away from the family home. Through the careful placement of technological support we believe older...

343

E-Print Network 3.0 - aged lean duplex Sample Search Results  

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

and thermochronologic ages from rocks in the Main Central thrust zone in central Nepal. At its current exposure level... duplex. Se- quential emplacement of the Main Central...

344

E-Print Network 3.0 - age induced maternal Sample Search Results  

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

Search Sample search results for: age induced maternal Page: << < 1 2 3 4 5 > >> 1 Ecology 2007 21, 408421 Summary: ) Daphnia cucullata Inducible defences Inducible defences...

345

ELECTRICAL AGING OF 15 KV EPR CABLES ENERGIZED BY AC VOLTAGE WITH SWITCHING IMPULSES SUPERIMPOSED.  

E-Print Network [OSTI]

?? In this study, the electrical aging of 15 kV Ethylene Propylene Rubber (EPR) power cables, located in PVC pipes containing water, was conducted byÖ (more)

Zanwar, Anand Umeshlal

2011-01-01T23:59:59.000Z

346

E-Print Network 3.0 - aged nuclear power Sample Search Results  

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

4 Background Analog electro-mechanical systems in existing nuclear power plants are aging... Engineering 2 Nuclear Power Plant 12;2 MIT Department of Nuclear Engineering 3...

347

Aging Enhances the Production of Reactive Oxygen Species andBactericid...  

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

Enhances the Production of Reactive Oxygen Species andBactericidal Activity in Peritoneal Macrophages by Aging Enhances the Production of Reactive Oxygen Species andBactericidal...

348

E-Print Network 3.0 - age-related human proportions Sample Search...  

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

Topic List Advanced Search Sample search results for: age-related human proportions Page: << < 1 2 3 4 5 > >> 1 Biogerontology 4: 119120, 2003. 2003 Kluwer Academic...

349

E-Print Network 3.0 - age mammal stable Sample Search Results  

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

by Explorit Topic List Advanced Search Sample search results for: age mammal stable Page: << < 1 2 3 4 5 > >> 1 Biogerontology 4: 119120, 2003. 2003 Kluwer Academic...

350

E-Print Network 3.0 - age related variations Sample Search Results  

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

by Explorit Topic List Advanced Search Sample search results for: age related variations Page: << < 1 2 3 4 5 > >> 1 Biogerontology 4: 119120, 2003. 2003 Kluwer Academic...

351

E-Print Network 3.0 - age related differences Sample Search Results  

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

by Explorit Topic List Advanced Search Sample search results for: age related differences Page: << < 1 2 3 4 5 > >> 1 Biogerontology 4: 119120, 2003. 2003 Kluwer Academic...

352

E-Print Network 3.0 - age factors Sample Search Results  

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

Powered by Explorit Topic List Advanced Search Sample search results for: age factors Page: << < 1 2 3 4 5 > >> 1 Biogerontology 4: 119120, 2003. 2003 Kluwer Academic...

353

E-Print Network 3.0 - activated ageing mechanisms Sample Search...  

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

Topic List Advanced Search Sample search results for: activated ageing mechanisms Page: << < 1 2 3 4 5 > >> 1 Biogerontology 4: 119120, 2003. 2003 Kluwer Academic...

354

E-Print Network 3.0 - age family environment Sample Search Results  

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

PROGRAMME ANNOUNCEMENT Summary: , healthy and productive ageing, family and support networks and participation and activity in later life... level (the social contract) and,...

355

E-Print Network 3.0 - age management intervention Sample Search...  

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

Diploma in Specialist Teaching Summary: in early intervention range in age from birth to 5 years, and have special learning, development... Postgraduate Diploma in...

356

E-Print Network 3.0 - age current status Sample Search Results  

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

in the U.S. Armed Forces for purposes... me. (List names and ages, and attach copies of birth certificates Source: Roy, Subrata - Department of Mechanical and Aerospace...

357

E-Print Network 3.0 - aged concrete structures Sample Search...  

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

risk of premature corrosion deterioration in concrete structures exposed to aggressive salt- laden... is slightly lower at early ages than those of control concretes but exceeds...

358

E-Print Network 3.0 - age k-depletion thyroid Sample Search Results  

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

on neonates is iodide uptake Summary: the hypothesis that perchlorate in drinking water suppresses thyroid function in 9784 newborns and 162 school-aged... at concentrations...

359

E-Print Network 3.0 - aged siloxane elastomers Sample Search...  

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

measured at 100% or 200... . was no evidence of significant surface or bulk siloxane hydro- On either elastomer, initial liquid drop advancing... accelerated aging the...

360

E-Print Network 3.0 - aged 60-80 years Sample Search Results  

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

Review Collection: Environmental Sciences and Ecology 5 Use of the ZELIG Forest Simulation Model in the Coastal Landscape Analysis and Modeling Study (CLAMS) Summary: ) Stand age...

Note: This page contains sample records for the topic "units age age" 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

E-Print Network 3.0 - age metamorphic history Sample Search Results  

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

best... includes a metamorphic miner- al from which an age can be determined, such as titanite, but to date... -temperature estimate is con- sistent with burial metamorphism, most...

362

E-Print Network 3.0 - ageing human colonic Sample Search Results  

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

at six weeks of age, the small bowel ... Source: Kim, Young L. - Weldon School of Biomedical Engineering, Purdue University; MacIver, Malcolm A. - Departments of Biomedical...

363

ageing perspective state: Topics by E-print Network  

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

nations. The conventional wisdom ... Flores-Macas, Francisco Jos 2010-01-01 75 Brownfield financing in the United States : from social benefit-cost perspective MIT - DSpace...

364

Semi-Annual Report on Work Supporting the International Forum for Reactor Aging Management (IFRAM)  

SciTech Connect (OSTI)

During the first six months of this project, Pacific Northwest National Laboratory has provided planning and leadership support for the establishment of the International Forum for Reactor Aging Management (IFRAM). This entailed facilitating the efforts of the Global Steering Committee to prepare the charter, operating guidelines, and other documents for IFRAM. It also included making plans for the Inaugural meeting and facilitating its success. This meeting was held on August 4 5, 2011, in Colorado Springs, Colorado. Representatives from Asia, Europe, and the United States met to share information on reactor aging management and to make plans for the future. Professor Tetsuo Shoji was elected chairperson of the Leadership Council. This kick-off event transformed the dream of an international forum into a reality. On August 4-5, 2011, IFRAM began to achieve its mission. The work completed successfully during this period was built upon important previous efforts. This included the development of a proposal for establishing IFRAM and engaging experts in Asia and Europe. The proposal was presented at Engagement workshops in Seoul, Korea (October 2009) and Petten, The Netherlands (May 2010). Participants in both groups demonstrated strong interest in the establishment of IFRAM. Therefore, the Global Steering Committee was formed to plan and carry out the start-up of IFRAM in 2011. This report builds on the initial activities and documents the results of activities over the last six months.

Bond, Leonard J.; Brenchley, David L.

2011-11-30T23:59:59.000Z

365

E-Print Network 3.0 - aged 40-49 years Sample Search Results  

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

for: aged 40-49 years Page: << < 1 2 3 4 5 > >> 1 LBNL RUNAROUND RESULTS 3.00 km (1.86 mi) October 8, 2004 TOP GROUP STANDINGS FOR 2004 Summary: no age circled 59 13:36.6 Kevin...

366

AGE, GROWTH, AND SEXUAL MATURITY OF GREENLAND HALIBUT, REINHARDT/US lHPPOGLOSSOIDES (WALBAUM),  

E-Print Network [OSTI]

AGE, GROWTH, AND SEXUAL MATURITY OF GREENLAND HALIBUT, REINHARDT/US lHPPOGLOSSOIDES (WALBAUM), IN THE CANADIAN NORTHWEST ATLANTIC W. R. BOWERIN01 ABSTRACT Age composition of Greenland halibut, Reinhardtius the slowest throughout the range. Onsetofmaturityoffemale Greenland halibutfrom the Gulfof

367

Warmly Debated: The Little Ice Age and the Construction of Historical Climatic Regimes, 1650-1950  

E-Print Network [OSTI]

. The Medieval Warm Period and the Little Ice Age are the two most commonly referenced and discussed of such regimes. This thesis examines the theories and debates that preceded and surrounded the formal definition of the Little Ice Age as an historic period...

Gilson, Christopher R.

2011-08-08T23:59:59.000Z

368

A Novel Virtual Age Reliability Model for Time-to-Failure Prediction  

E-Print Network [OSTI]

counts, devices approaching physical feature size limits and nuclear plant comparable power densityA Novel Virtual Age Reliability Model for Time-to-Failure Prediction Yao Wang, Sorin Cotofana their relatively short operating lifetime. To overcome the MTTF weakness, this paper proposes a novel virtual age

Kuzmanov, Georgi

369

A post-Caledonian dolerite dyke from Magery, North Norway: age and geochemistry  

E-Print Network [OSTI]

A post-Caledonian dolerite dyke from Mager√ły, North Norway: age and geochemistry DAVID ROBERTS-Caledonian dolerite dyke from Mager√ły, North Norway: age and geochemistry. Norsk Geologisk Tidsskrift, Vol. 71, pp, Geological Survey of Norway, Post Box 3006-Lade, N-7(}()2 Trondheim, Norway; John G. Mitchell, Department

Andersen, Torgeir Bj√łrge

370

Induced abortion ratio in modern Sweden falls with age, but rises again before menopause  

E-Print Network [OSTI]

Induced abortion ratio in modern Sweden falls with age, but rises again before menopause Birgitta S. Tullberga, *, Virpi Lummaab,1 a Department of Zoology, University of Stockholm, S-10691 Stockholm, Sweden b than on age per se. We used data on abortions and births in Sweden during 1994 to investigate how

Tullberg, Birgitta

371

Cerebral White Matter Integrity Mediates Adult Age Differences in Cognitive Performance  

E-Print Network [OSTI]

Cerebral White Matter Integrity Mediates Adult Age Differences in Cognitive Performance David J. Madden1 , Julia Spaniol1 , Matthew C. Costello1 , Barbara Bucur1 , Leonard E. White1 , Roberto Cabeza2 research has established that age-related decline oc- curs in measures of cerebral white matter integrity

Dennis, Nancy

372

Fracture, aging, and disease in bone J.W. Ager III  

E-Print Network [OSTI]

Fracture, aging, and disease in bone J.W. Ager III Materials Sciences Division, Lawrence Berkeley-known increase with age in fracture risk of human bone is essential. This also represents a challenge from materials science and fracture mechanics viewpoints. Bone has a complex, hierarchical structure

Ritchie, Robert

373

Effects of creatine loading on electromyographic fatigue threshold during cycle ergometry in college-aged women  

E-Print Network [OSTI]

The purpose of this study was to examine the effects of 5 days of Creatine (Cr) loading on the electromyographic fatigue threshold (EMGFT) in college-aged women. Fifteen healthy college-aged women (mean Ī SD = 22.3 Ī 1.7 ...

Smith, Abbie E.; Walter, Ashley A.; Herda, Trent J.; Ryan, Eric D.; Moon, Jordan R.; Cramer, Joel T.; Stout, Jeffrey R.

2007-01-01T23:59:59.000Z

374

COMPARISON BETWEEN FRESH AND AGED MUNICIPAL SOLID WASTES AND THEIR RECYCLING METHODS IN CHINA  

E-Print Network [OSTI]

SUMMARY: Fresh municipal solid wastes (MSW) and aged MSW including MSW from landfills and dumpsite have been characterized and compared by their components, moisture content and lower heat value (LHV) in order to recycle and dispose them properly. Firstly the characterizing experiments were performed and the results showed that generally the fresh MSW are of high moisture contents and their LHV is below 6500kJ/kg; and when 40 % of plastics were separated, their LHV is less than 5000kJ/kg. Combustibles in aged MSW were easily to be separated and their LHV is higher than 11000kJ/kg as just separated. Analysis of aged MSW of different years í old showed that as MSW became older the moisture and paper contents decreased. No leachate produced from aged MSW during the analysis and separation process. For both fresh MSW and aged MSW the main contributor to LHV is plastics. Secondly a simple separating system consisting of a roller screen and a winnower is used to separate plastics from fresh MSW and aged MSW, and the quality of plastics were compared by their physical parameters after made into pellets; the results showed that plastics from fresh MSW can be recycled as raw material for secondary product; while plastics separated from aged MSW are of lower quality and only suitable to be recycled as fuel material. Finally different recycling methods were suggested for fresh and aged MSWs based on their characteristics. 1.

G. Zhou; D. Chen; W. Cui

2007-01-01T23:59:59.000Z

375

Numerical Age Computation of the Antarctic Ice Sheet for Dating Deep Ice Cores  

E-Print Network [OSTI]

Numerical Age Computation of the Antarctic Ice Sheet for Dating Deep Ice Cores Bernd M¨ugge1 for the computation of the age of ice is discussed within the frame of numerical ice sheet modelling. The first method of a numerical diffusion term to stabilize the solution and therefore produces arbitrary results in a near

Calov, Reinhard

376

Gas ageice age differences and the chronology of the Vostok ice core, M. L. Bender,1  

E-Print Network [OSTI]

Gas age­ice age differences and the chronology of the Vostok ice core, 0­100 ka M. L. Bender,1 G. [1] Gas is trapped in polar ice at depths of $50­120 m and is therefore significantly younger than cores (Vostok, Dome Fuji, and Dome C). We recorrelate the gas records of Vostok and Greenland Ice Sheet

Chappellaz, J√©r√īme

377

Nuclear power plant Generic Aging Lessons Learned (GALL). Main report and appendix A  

SciTech Connect (OSTI)

The purpose of this generic aging lessons learned (GALL) review is to provide a systematic review of plant aging information in order to assess materials and component aging issues related to continued operation and license renewal of operating reactors. Literature on mechanical, structural, and thermal-hydraulic components and systems reviewed consisted of 97 Nuclear Plant Aging Research (NPAR) reports, 23 NRC Generic Letters, 154 Information Notices, 29 Licensee Event Reports (LERs), 4 Bulletins, and 9 Nuclear Management and Resources Council Industry Reports (NUMARC IRs) and literature on electrical components and systems reviewed consisted of 66 NPAR reports, 8 NRC Generic Letters, 111 Information Notices, 53 LERs, 1 Bulletin, and 1 NUMARC IR. More than 550 documents were reviewed. The results of these reviews were systematized using a standardized GALL tabular format and standardized definitions of aging-related degradation mechanisms and effects. The tables are included in volume s 1 and 2 of this report. A computerized data base has also been developed for all review tables and can be used to expedite the search for desired information on structures, components, and relevant aging effects. A survey of the GALL tables reveals that all ongoing significant component aging issues are currently being addressed by the regulatory process. However, the aging of what are termed passive components has been highlighted for continued scrutiny. This document is Volume 1, consisting of the executive summary, summary and observations, and an appendix listing the GALL literature review tables.

Kaza, K.E.; Diercks, D.R.; Holland, J.W.; Choi, S.U. [and others

1996-12-01T23:59:59.000Z

378

Glassy dynamics, aging in mobility, and structural relaxation of strongly adsorbed polymer films: Corrugation or confinement?  

E-Print Network [OSTI]

Glassy dynamics, aging in mobility, and structural relaxation of strongly adsorbed polymer films of Western Ontario, London, Ontario N6A 5B7, Canada Abstract. A molecular dynamics simulation (MD. The model reproduces many experimentally observed features such as logarithmic aging of structural

Mueser, Martin

379

age-related myelin dynamics: Topics by E-print Network  

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

age-related myelin dynamics First Page Previous Page 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 Next Page Last Page Topic Index 1 Age related changes in...

380

Estimating distribution of the age of onset of detectable asymptomatic cancer  

E-Print Network [OSTI]

Estimating distribution of the age of onset of detectable asymptomatic cancer Giovanni Parmigiani through the Specialized Program of Research Ex­ cellence (SPORE) grant in Breast Cancer at Duke University to estimate the distribution of the age of onset of detectable preclinical cancer, using incidence data

West, Mike

Note: This page contains sample records for the topic "units age age" 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

Age distribution of scientists at the MIT Plasma Science and Fusion Center.  

E-Print Network [OSTI]

. #12;[1]Edward Thomas, Jr., et al., Fusion in the era of burning plasma studies: workforce planning engineering are rapidly declining. This situation is unfolding in the context of an aging US fusion workforce, retirement age. I believe the workforce distribution for the entire US fusion program is not very different

382

Re-Architecting the DoD Acquisition Process: A Transition to the Information Age  

E-Print Network [OSTI]

and Management Program #12;2 Re-Architecting the DoD Acquisition Process: A Transition to the Information Age1 Re-Architecting the DoD Acquisition Process: A Transition to the Information Age by Kevin M Masters of Science, Engineering Management University of Missouri, Rolla, MO Submitted to the System

de Weck, Olivier L.

383

Childhood leukaemia incidence below the age of 5 years near French nuclear power plants  

E-Print Network [OSTI]

Childhood leukaemia incidence below the age of 5 years near French nuclear power plants D Laurier 1 living in the vicinity of nuclear power plants in Germany. We present herein results about the incidence of childhood leukaemia in the vicinity of nuclear power plants in France for the same age range. These results

Paris-Sud XI, Universitť de

384

A Stochastic Age-Structured Population Model of Striped Bass (Morone saxatilis) in the Potomac River'  

E-Print Network [OSTI]

-structured population model of striped bass (Morone saatilis) in the Potomac River. Can. J. Fish. Aquat. Sci. 40A Stochastic Age-Structured Population Model of Striped Bass (Morone saxatilis) in the Potomac. CHRISTENSEN.AND C. P. GOODYEAR.1983. A stochastic age-structured population model of striped bass (Morone sn

Cohen, Joel E.

385

Regenerative Hair Waves in Aging Mice and Extra-Follicular Modulators Follistatin, Dkk1,  

E-Print Network [OSTI]

Regenerative Hair Waves in Aging Mice and Extra-Follicular Modulators Follistatin, Dkk1, and Sfrp4 , Oscar K. Lee2,6 , Randall B. Widelitz1 and Cheng-Ming Chuong1,2 Hair cycling is modulated by factors both intrinsic and extrinsic to hair follicles. Cycling defects lead to conditions such as aging

Chuong, Cheng-Ming

386

AGE-RELATED DEGRADATION OF NUCLEAR POWER PLANT STRUCTURES AND COMPONENTS.  

SciTech Connect (OSTI)

This paper summarizes and highlights the results of the initial phase of a research project on the assessment of aged and degraded structures and components important to the safe operation of nuclear power plants (NPPs). A review of age-related degradation of structures and passive components at NPPs was performed. Instances of age-related degradation have been collected and reviewed. Data were collected from plant generated documents such as Licensing Event Reports, NRC generic communications, NUREGs and industry reports. Applicable cases of degradation occurrences were reviewed and then entered into a computerized database. The results obtained from the review of degradation occurrences are summarized and discussed. Various trending analyses were performed to identify which structures and components are most affected, whether degradation occurrences are worsening, and what are the most common aging mechanisms. The paper also discusses potential aging issues and degradation-susceptible structures and passive components which would have the greatest impact on plant risk.

BRAVERMAN,J.

1999-03-29T23:59:59.000Z

387

Aging management guideline for commercial nuclear power plants-stationary batteries. Final report  

SciTech Connect (OSTI)

The Aging Management Guideline (AMG) describes recommended methods for effective detection and mitigation of age-related degradation mechanisms in BWR and PWR commercial nuclear power plant stationary batteries important to license renewal. The intent of this AMG is to assist plant maintenance and operations personnel in maximizing the safe, useful life of these components. It also supports the documentation of effective aging management programs required under the License Renewal Rule 10 CFR Part 54. This AMG is presented in a manner that allows personnel responsible for performance analysis and maintenance to compare their plant-specific aging mechanisms (expected or already experienced) and aging management program activities to the more generic results and recommendations presented herein.

Berg, R.; Shao, J.; Krencicki, G.; Giachetti, R. [Multiple Dynamics Corp., Southfield, MI (United States)

1994-03-01T23:59:59.000Z

388

Aging considerations for PWR (pressurized water reactor) control rod drive mechanisms and reactor internals  

SciTech Connect (OSTI)

This paper describes age-related degradation mechanisms affecting life extension of pressurized water reactor control rod drive mechanisms and reactor internals. The major sources of age-related degradation for control rod drive mechanisms are thermal transients such as plant heatups and cooldowns, latchings and unlatchings, long-term aging effects on electrical insulation, and the high temperature corrosive environment. Flow induced loads, the high-temperature corrosive environment, radiation exposure, and high tensile stresses in bolts all contribute to aging related degradation of reactor internals. Another problem has been wear and fretting of instrument guide tubes. The paper also discusses age-related failures that have occurred to date in pressurized water reactors.

Ware, A.G.

1988-01-01T23:59:59.000Z

389

The effect of aging at 343 degrees C on type 308 stainless steel weldments  

SciTech Connect (OSTI)

The effect of long-term aging at intermediate temperatures on the mechanical properties of stainless steel welds has been studied. Three type 308 multipass shielded metal-arc welds with ferrite levels of 4, 8, and 12% were aged up to 343{degrees}C. Tensile tests showed little effect of aging on either the yield or ultimate tensile strengths, but the impact toughness was significantly degraded. The extent of the degradation increased with increasing ferrite content and increasing aging time. Examination of the microstructure with transmission electron microcscopy and atom probe field-ion microscopy revealed that the ferrite phase had undergone spinodal decomposition as a result of aging. In addition, G-phase particles were observed at dislocations, and finer G-phase particles were homogeneously distributed throughout the ferrite phase. The changes in the mechanical properties and the fractography are discussed in light of the observed changes in the microstructure. 19 refs., 7 figs., 2 tabs.

Alexander, D.J.; Alexander, K.B.; Miller, M.K.; Nanstad, R.K.

1990-01-01T23:59:59.000Z

390

Quantitation of Organics in Supercritical Fluid Aging Experiments Using FTIR Spectroscopy  

SciTech Connect (OSTI)

Aging is a natural process in which hydrophobic organic contaminants slowly accumulate in the mineral pores and organic matter of soils and sediments. Contaminants in aged soils exhibit decreased bioavailability and slow release to the environment. Therefore, aging may have a significant influence on the applicability and effectiveness of remediation strategies (e.g., bioremediation and natural attenuation) and the accuracy of numerical transport models. Previous research in our laboratory has demonstrated that circulating supercritical carbon dioxide can be used to rapidly prepare artificially aged materials for studying slow-release behavior. In this investigation, FTIR spectroscopy was evaluated as a means of monitoring the progress of the aging process in real time. Solvent interferences, measurement sensitivity for selected halocarbons and the influence of temperature and pressure on the FTIR spectra were assessed. Application of this methodology to monitoring the incorporation of carbon tetrachloride into natural soils will be discussed.

Thompson, Christopher J.; Riley, Robert G.; Amonette, James E.; Gassman, Paul L.

2004-03-31T23:59:59.000Z

391

Age-Related Degradation of Nuclear Power Plant Structures and Components  

SciTech Connect (OSTI)

This paper summarizes and highlights the results of the initial phase of a research project on the assessment of aged and degraded structures and components important to the safe operation of nuclear power plants (NPPs). A review of age-related degradation of structures and passive components at NPPs was performed. Instances of age-related degradation have been collected and reviewed. Data were collected from plant generated documents such as Licensing Event Reports, NRC generic communications, NUREGs and industry reports. Applicable cases of degradation occurrences were reviewed and then entered into a computerized database. The results obtained from the review of degradation occurrences are summarized and discussed. Various trending analyses were performed to identify which structures and components are most affected, whether degradation occurrences are worsening, and what was the most common aging mechanisms. The paper also discusses potential aging issues and degradation-susceptible structures and passive components which would have the greatest impact on plant risk.

Braverman, J.; Chang, T.-Y.; Chokshi, N.; Hofmayer, C.; Morante, R.; Shteyngart, S.

1999-03-29T23:59:59.000Z

392

Aging Management Guideline for commercial nuclear power plants: Electrical switchgear. Final report  

SciTech Connect (OSTI)

This Aging Management Guideline (AMG) provides recommended methods for effective detection and mitigation of age-related degradation mechanisms in BWR and PWR commercial nuclear power plant electrical switchgear important to license renewal. The latent of this AMG to assist plant maintenance and operations personnel in maximizing the safe, useful life of these components. It also supports the documentation of effective aging management programs required under the License Renewal Rule 10 CFR Part 54. This AMG is presented in a manner which allows personnel responsible for performance analysis and maintenance, to compare their plant-specific aging mechanisms (expected or already experienced) and aging management program activities to the more generic results and recommendations presented herein.

Toman, G.; Gazdzinski, R.; Schuler, K. [Ogden Environmental and Energy Services Co., Inc., Blue Bell, PA (United States)

1993-07-01T23:59:59.000Z

393

Aging management guideline for commercial nuclear power plants - tanks and pools  

SciTech Connect (OSTI)

Continued operation of nuclear power plants for periods that extend beyond their original 40-year license period is a desirable option for many U.S. utilities. U.S. Nuclear Regulatory Commission (NRC) approval of operating license renewals is necessary before continued operation becomes a reality. Effective aging management for plant components is important to reliability and safety, regardless of current plant age or extended life expectations. However, the NRC requires that aging evaluations be performed and the effectiveness of aging management programs be demonstrated for components considered within the scope of license renewal before granting approval for operation beyond 40 years. Both the NRC and the utility want assurance that plant components will be highly reliable during both the current license term and throughout the extended operating period. In addition, effective aging management must be demonstrated to support Maintenance Rule (10 CFR 50.65) activities.

Blocker, E.; Smith, S.; Philpot, L.; Conley, J.

1996-02-01T23:59:59.000Z

394

Proceedings of the Inaugural Meeting of the International Forum for Reactor Aging Management (IFRAM)  

SciTech Connect (OSTI)

In almost all countries with nuclear power plants (NPPs), regulatory authorities and the nuclear industry are looking at some form of extended operating periods. To support life extension activities it is necessary to ensure the continued safety and reliability of system, structures, and components, and the component materials. Internationally, a variety of individual national and international activities have been initiated including Plant Life Management through the International Atomic Energy Agency, Electric Power Research Instituteís Long Term Operation program, and various national programs in managing materials degradation and related topics. The U.S. Nuclear Regulatory Commission (NRC) engaged the international community in workshops in 2005-2006 to identify research needs and to collect information in an expert panel report on Proactive Management of Materials Degradation (PMMD), which was reported in NUREG/CR-6923. These results are also available via an Information Tool on the internet at http://pmmd.pnl.gov. This information builds on the extensive compilations known as the GALL Report (Generic Aging Lessons Learned, NUREG-1801, Vols. 1 and 2). Pacific Northwest National Laboratory (PNNL) recently issued a report on the review of various international activities in PMMD (PNNL-17779). There have also been initiatives by Electricite de France, Tokyo Electric Power Company, EPRI, and others to establish a "Materials Aging Institute." Within the materials degradation research community there are also networks and technical meetings focused on some elements of PMMD. In spite of all these efforts, there is currently no forum to bring together these diverse activities and provide coordinated information exchange and prioritization of materials aging management/PMMD topics. It is believed that the International Forum for Reactor Aging Management (IFRAM) would be a good way to achieve this goal and help develop new approaches for ensuring continued safe operation in existing and future nuclear power plants. To begin addressing this need, NRC has established a Proactive Management of Materials Degradation Program for managing in-service degradation of metallic components in aging NPPs. The NRC is seeking to facilitate the establishment of IFRAM as a network of international experts who would exchange information on operating experience, best practices, and emerging knowledge. These experts would be willing to work jointly and leverage the separate efforts of existing national programs into a unified approach to enable the potential for the safe and economic life extension of NPPs. A proposal for establishing IFRAM was developed and presented at Engagement workshops in Seoul, Korea (October 2009) and Petten, The Netherlands (May 2010). Participants in both groups demonstrated strong interest in the establishment of IFRAM. Therefore the Global Steering Committee was formed to plan and carry out the start-up of IFRAM in 2011. This group finalized the documents for IFRAM and organized the kick-off meeting. This document records the contents of the inaugural meeting of IFRAM, which was held August 4-5, 2011, at the Cheyenne Mountain Resort in Colorado Springs, Colorado. Representatives from Asia, Europe, and the United States met to share information on reactor aging management and make plans for the future. Professor Tetsuo Shoji was elected chairperson of the Leadership Council. This kick-off event transformed the dream of an international forum into a reality. IFRAM has begun to achieve its mission.

Bond, Leonard J.; Brenchley, David L.

2011-09-01T23:59:59.000Z

395

Aging and Phase Stability of Waste Package Outer Barrier  

SciTech Connect (OSTI)

This report was prepared in accordance with ''Technical Work Plan for: Regulatory Integration Modeling and Analysis of the Waste Form and Waste Package'' (BSC 2004 [DIRS 171583]). This report provides information on the phase stability of Alloy 22, the current waste package outer barrier material. The goal of this model is to determine whether the single-phase solid solution is stable under repository conditions and, if not, how fast other phases may precipitate. The aging and phase stability model, which is based on fundamental thermodynamic and kinetic concepts and principles, will be used to provide predictive insight into the long-term metallurgical stability of Alloy 22 under relevant repository conditions. The results of this model are used by ''General Corrosion and Localized Corrosion of Waste Package Outer Barrier'' as reference-only information. These phase stability studies are currently divided into three general areas: Tetrahedrally close-packed (TCP) phase and carbide precipitation in the base metal; TCP and carbide precipitation in welded samples; and Long-range ordering reactions. TCP-phase and carbide precipitates that form in Alloy 22 are generally rich in chromium (Cr) and/or molybdenum (Mo) (Raghavan et al. 1984 [DIRS 154707]). Because these elements are responsible for the high corrosion resistance of Alloy 22, precipitation of TCP phases and carbides, especially at grain boundaries, can lead to an increased susceptibility to localized corrosion in the alloy. These phases are brittle and also tend to embrittle the alloy (Summers et al. 1999 [DIRS 146915]). They are known to form in Alloy 22 at temperatures greater than approximately 600 C. Whether these phases also form at the lower temperatures expected in the repository during the 10,000-year regulatory period must be determined. The kinetics of this precipitation will be determined for both the base metal and the weld heat-affected zone (HAZ). The TCP phases (P, {mu}, and {sigma}) are present in the weld metal in the as-welded condition. It may be possible to eliminate these phases through a solution anneal heat treatment, but that may not be possible for the closure weld because the spent nuclear fuel cladding cannot be heated to more than 350 C. The effects of any stress mitigation techniques (such as laser peening or solution heat treating) that may be used to reduce the tensile stresses on the closure welds must also be determined. Cold-work will cause an increase in dislocation density, and such an increase in dislocation density may cause an increase in diffusion rates that control precipitation kinetics (Porter et al. 1992 [DIRS 161265]; Tawancy et al. 1983 [DIRS 104991]). Long-range order (LRO) occurs in nickel (Ni)-Cr-Mo alloys (such as Alloy 22) at temperatures less than approximately 600 C. This ordering has been linked to an increased susceptibility of Ni-Cr-Mo alloys to stress corrosion cracking and hydrogen embrittlement (Tawancy et al. 1983 [DIRS 104991]). These analyses provide information on the rate at which LRO may occur in Alloy 22 under repository conditions. Determination of the kinetics of transformations through experimental techniques requires that the transformations being investigated be accelerated due to the fact that the expected service life is at least 10,000 years. Phase transformations are typically accelerated through an increase in temperature. The rate of transformation is determined at the higher temperature and is extrapolated to the lower temperatures of interest.

F. Wong

2004-09-28T23:59:59.000Z

396

The Morphology of the Sub-Giant Branch and Red Clump Reveal No Sign of Age Spreads in Intermediate Age Clusters  

E-Print Network [OSTI]

A recent surprise in stellar cluster research, made possible through the precision of Hubble Space Telescope photometry, was that some intermediate age (1-2 Gyr) clusters in the Large and Small Magellanic Clouds have main sequence turn-off (MSTO) widths that are significantly broader than would be expected for a simple stellar population (SSP). One interpretation of these extended MSTOs (eMSTOs) is that age spreads of the order of ~500 Myr exist within the clusters, radically redefining our view of stellar clusters, which are traditionally thought of as single age, single metallicity stellar populations. Here we test this interpretation by studying other regions of the CMD that should also be affected by such large age spreads, namely the width of the sub-giant branch (SGB) and the red clump (RC). We study two massive clusters in the LMC that display the eMSTO phenomenon (NGC 1806 & NGC 1846) and show that both have SGB and RC morphologies that are in conflict with expectations if large age spreads exist ...

Bastian, Nate

2015-01-01T23:59:59.000Z

397

Seismic-fragility tests of new and accelerated-aged Class 1E battery cells  

SciTech Connect (OSTI)

The seismic-fragility response of naturally-aged nuclear station safety-related batteries is of interest for two reasons: (1) to determine actual failure modes and thresholds and (2) to determine the validity of using the electrical capacity of individual cells as an indicator of the potential survivability of a battery given a seismic event. Prior reports in this series discussed the seismic-fragility tests and results for three specific naturally-aged cell types: 12-year old NCX-2250, 10-year old LCU-13, and 10-year old FHC-19. This report focuses on the complementary approach, namely, the seismic-fragility response of accelerated-aged batteries. Of particular interest is the degree to which such approaches accurately reproduce the actual failure modes and thresholds. In these tests the significant aging effects observed, in terms of seismic survivability, were: embrittlement of cell cases, positive bus material and positive plate grids; and excessive sulphation of positive plate active material causing hardening and expansion of positive plates. The IEEE Standard 535 accelerated aging method successfully reproduced seismically significant aging effects in new cells but accelerated grid embrittlement an estimated five years beyond the conditional age of other components.

Bonzon, L.L.; Janis, W.J.; Black, D.A.; Paulsen, G.A.

1987-01-01T23:59:59.000Z

398

THE AGES OF HIGH-MASS X-RAY BINARIES IN NGC 2403 AND NGC 300  

SciTech Connect (OSTI)

We have examined resolved stellar photometry from HST imaging surrounding 18 high-mass X-ray binary (HMXB) candidates in NGC 300 and NGC 2403 as determined from combined Chandra/HST analysis. We have fit the color-magnitude distribution of the surrounding stars with stellar evolution models. All but one region in NGC 300 and two in NGC 2403 contain a population with an age between 20 and 70 Myr. One of the candidates is the ultraluminous X-ray source in NGC 2403, which we associate with a 60 {+-} 5 Myr old population. These age distributions provide additional evidence that 16 of these 18 candidates are HMXBs. Furthermore, our results suggest that the most common HMXB age in these galaxies is 40-55 Myr. This preferred age is similar to observations of HMXBs in the Small Magellanic Cloud, providing new evidence of this formation timescale, but in higher metallicity populations. We suggest that this preferred HMXB age is the result of the fortuitous combination of two physical effects. First, this is the age of a population when the greatest rate of core-collapse events should be occurring, maximizing neutron star production. Second, this is the age when B stars are most likely to be actively losing mass. We also discuss our results in the context of HMXB feedback in galaxies, confirming HMXBs as a potentially important source of energy for the interstellar medium in low-mass galaxies.

Williams, Benjamin F.; Binder, Breanna A.; Dalcanton, Julianne J. [Department of Astronomy, Box 351580, University of Washington, Seattle, WA 98195 (United States); Eracleous, Michael [Department of Astronomy and Astrophysics and Center for Gravitational Wave Physics, Pennsylvania State University, 525 Davey Lab, University Park, PA 16803 (United States); Dolphin, Andrew, E-mail: ben@astro.washington.edu, E-mail: bbinder@astro.washington.edu, E-mail: jd@astro.washington.edu, E-mail: mce@astro.psu.edu, E-mail: adolphin@raytheon.com [Raytheon Company, Tucson, AZ 85734 (United States)

2013-07-20T23:59:59.000Z

399

Effect of ageing on precipitation and impact energy of 2101 economical duplex stainless steel  

SciTech Connect (OSTI)

The impact energy and microstructure of a thermally aged 2101 duplex stainless steel with composition of Fe-21.4Cr-1.2Ni-5.7Mn-0.23 N-0.31Mo were studied. The results showed that the room temperature impact energy of specimens decreased gradually with ageing temperature up to 700 deg. C and then increased with aging over 700 deg. C. The minimum value of impact energy was 37 J after 700 deg. C aging, which was only 34% of that for as-annealed specimens. For specimens aged at 700 deg. C, the room temperature impact energy decreased significantly after 3 min and was halved after 10 min. Fractographs showed that, with increasing aging time, the fracture morphology changed from fibrous fracture to transgranular and intragranular fracture. Scanning electron micrographs revealed that many precipitates were distributed along {alpha}/{gamma} and {alpha}/{alpha} interfaces. The precipitates were extracted and confirmed by X-ray diffraction to be Cr{sub 2}N. Therefore, it can be concluded that precipitation of Cr{sub 2}N is the main reason for the decrease of impact energy in aged 2101 duplex stainless steel.

Zhang Wei [Shanghai Baosteel Technology Center, Baosteel Co., LTD. Shanghai 200431 (China); College of Materials Science and Engineering, Shanghai Jiaotong University, Shanghai 200240 (China); Jiang Laizhu [Shanghai Baosteel Technology Center, Baosteel Co., LTD. Shanghai 200431 (China)], E-mail: zwatt@163.com; Hu Jincheng; Song Hongmei [Shanghai Baosteel Technology Center, Baosteel Co., LTD. Shanghai 200431 (China)

2009-01-15T23:59:59.000Z

400

STUDY OF AGING EFFECTS IN 2205 DUPLEX STAINLESS STEEL USING THERMOELECTRIC POWER MEASUREMENT  

SciTech Connect (OSTI)

Thermoelectric power (TEP) measurements have been used as an effective method for evaluating the metallurgical state of various alloys. In the steel industry, some fabrication processes promote phase transformation and second phase precipitations which affect the material properties. Assessment of mechanical properties is critical in order to ensure quality of components. This work was conducted in order to evaluate the influence of the aging state of 2205 duplex stainless steel on TEP values. Commercial 2205 duplex steel was isothermally aged at 650 deg. C 700 deg. C and 900 deg. C at different aging times. TEP measurement technique was applied as a non destructive assessment technique to characterize the aging kinetics of the aged 2205 duplex stainless steel, hardness Rockwell (RC) and Charpy impact test were preformed to observe the effect of aging time on the specimens. Metallographic analysis was used to monitor phase transformation and sigma phase precipitation caused by the spinodal decomposition process of ferrite into secondary austenite and sigma phase. Results indicate that that the TEP is sensitive to gradual microstructural changes produced by the aging treatments.

Lara, N.; Ruiz, A.; Carreon, H.; Medina, A. [NDE Group, Instituto de Investigaciones Metalurgicas, UMSNH (Mexico); Sanchez, A. [Department of Mechanical Engineering, UMSNH (Mexico)

2010-02-22T23:59:59.000Z

Note: This page contains sample records for the topic "units age age" 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

Long-term aging and loss-of-coolant accident (LOCA) testing of electrical cables  

SciTech Connect (OSTI)

Experiments were performed to assess the aging degradation and loss-of-coolant accident (LOCA) behavior of electrical cables subjected to long-term aging exposures. Four different cable types were tested in both the U.S. and France: (1) U.S. 2 conductor with ethylene propylene rubber (EPR) insulation and a Hypalon jacket. (2) U.S. 3 conductor with cross-linked polyethylene (XLPE) insulation and a Hypalon jacket. (3) French 3 conductor with EPR insulation and a Hypalon jacket. (4) French coaxial with polyethylene (PE) insulation and a PE jacket. The data represent up to 5 years of simultaneous aging where the cables were exposed to identical aging radiation doses at either 40{degrees}C or 70{degrees}C; however, the dose rate used for the aging irradiation was varied over a wide range (2-100 Gy/hr). Aging was followed by exposure to simulated French LOCA conditions. Several mechanical, electrical, and physical-chemical condition monitoring techniques were used to investigate the degradation behavior of the cables. All the cables, except for the French PE cable, performed acceptably during the aging and LOCA simulations. In general, cable degradation at a given dose was highest for the lowest dose rate, and the amount of degradation decreased as the dose rate was increased.

Nelson, C.F.; Gauthier, G.; Carlin, F. [and others

1996-10-01T23:59:59.000Z

402

Effect of prior cold work on age hardening of Cu-3Ti-1Cr alloy  

SciTech Connect (OSTI)

The influence of 50%, 75% and 90% cold work on the age hardening behavior of Cu-3Ti-1Cr alloy has been investigated by hardness and tensile tests, and light optical and transmission electron microscopy. Hardness increased from 118 Hv in the solution-treated condition to 373 Hv after 90% cold work and peak aging. Cold deformation reduced the peak aging time and temperature of the alloy. The yield strength and ultimate tensile strength reached a maximum of 1090 and 1110 MPa, respectively, following 90% deformation and peak aging. The microstructure of the deformed alloy exhibited elongated grains and deformation twins. The maximum strength on peak aging was obtained due to precipitation of the ordered, metastable and coherent {beta}'-Cu{sub 4}Ti phase, in addition to high dislocation density and deformation twins. Over-aging resulted in decreases in hardness and strength due to the formation of incoherent and equilibrium {beta}-Cu{sub 3}Ti phase in the form of a cellular structure. However, the morphology of the discontinuous precipitation changed to a globular form on high deformation. The mechanical properties of Cu-3Ti-1Cr alloy are superior to those of Cu-2.7Ti, Cu-3Ti-1Cd and the commercial Cu-0.5Be-2.5Co alloys in the cold-worked and peak-aged condition.

Markandeya, R. [Department of Metallurgical Engineering, College of Engineering, Jawaharlal Nehru Technological University, Kukatpally, Hyderabad-500 072 (India); Nagarjuna, S. [Defence Metallurgical Research Laboratory, Kanchanbagh, Hyderabad-500 058 (India)]. E-mail: snagarjuna1@rediffmail.com; Sarma, D.S. [Department of Metallurgical Engineering, Institute of Technology, Banaras Hindu University, Varanasi-221 005 (India)

2006-12-15T23:59:59.000Z

403

Energy Saving Melting and Revert Reduction Technology: Aging of Graphitic Cast Irons and Machinability  

SciTech Connect (OSTI)

The objective of this task was to determine whether ductile iron and compacted graphite iron exhibit age strengthening to a statistically significant extent. Further, this effort identified the mechanism by which gray iron age strengthens and the mechanism by which age-strengthening improves the machinability of gray cast iron. These results were then used to determine whether age strengthening improves the machinability of ductile iron and compacted graphite iron alloys in order to develop a predictive model of alloy factor effects on age strengthening. The results of this work will lead to reduced section sizes, and corresponding weight and energy savings. Improved machinability will reduce scrap and enhance casting marketability. Technical Conclusions: √?¬?√?¬Ę√?¬?√?¬?√?¬?√?¬Ę Age strengthening was demonstrated to occur in gray iron ductile iron and compacted graphite iron. √?¬?√?¬Ę√?¬?√?¬?√?¬?√?¬Ę Machinability was demonstrated to be improved by age strengthening when free ferrite was present in the microstructure, but not in a fully pearlitic microstructure. √?¬?√?¬Ę√?¬?√?¬?√?¬?√?¬Ę Age strengthening only occurs when there is residual nitrogen in solid solution in the Ferrite, whether the ferrite is free ferrite or the ferrite lamellae within pearlite. √?¬?√?¬Ę√?¬?√?¬?√?¬?√?¬Ę Age strengthening can be accelerated by Mn at about 0.5% in excess of the Mn/S balance Estimated energy savings over ten years is 13.05 trillion BTU, based primarily on yield improvement and size reduction of castings for equivalent service. Also it is estimated that the heavy truck end use of lighter castings for equivalent service requirement will result in a diesel fuel energy savings of 131 trillion BTU over ten years.

Von L. Richards

2012-09-19T23:59:59.000Z

404

Report on thermal aging effects on tensile properties of ferritic-martensitic steels.  

SciTech Connect (OSTI)

This report provides an update on the evaluation of thermal-aging induced degradation of tensile properties of advanced ferritic-martensitic steels. The report is the first deliverable (level 3) in FY11 (M3A11AN04030103), under the Work Package A-11AN040301, 'Advanced Alloy Testing' performed by Argonne National Laboratory, as part of Advanced Structural Materials Program for the Advanced Reactor Concepts. This work package supports the advanced structural materials development by providing tensile data on aged alloys and a mechanistic model, validated by experiments, with a predictive capability on long-term performance. The scope of work is to evaluate the effect of thermal aging on the tensile properties of advanced alloys such as ferritic-martensitic steels, mod.9Cr-1Mo, NF616, and advanced austenitic stainless steel, HT-UPS. The aging experiments have been conducted over a temperature of 550-750 C for various time periods to simulate the microstructural changes in the alloys as a function of time at temperature. In addition, a mechanistic model based on thermodynamics and kinetics has been used to address the changes in microstructure of the alloys as a function of time and temperature, which is developed in the companion work package at ANL. The focus of this project is advanced alloy testing and understanding the effects of long-term thermal aging on the tensile properties. Advanced materials examined in this project include ferritic-martensitic steels mod.9Cr-1Mo and NF616, and austenitic steel, HT-UPS. The report summarizes the tensile testing results of thermally-aged mod.9Cr-1Mo, NF616 H1 and NF616 H2 ferritic-martensitic steels. NF616 H1 and NF616 H2 experienced different thermal-mechanical treatments before thermal aging experiments. NF616 H1 was normalized and tempered, and NF616 H2 was normalized and tempered and cold-rolled. By examining these two heats, we evaluated the effects of thermal-mechanical treatments on material microstructures and associated mechanical properties during long-term aging at elevated temperatures. Thermal aging experiments at different temperatures and periods of time have been completed: 550 C for up to 5000 h, 600 C for up to 7500 h, and 650 C for more than 10,000 h. Tensile properties were measured on thermally aged specimens and aging effect on tensile behavior was assessed. Effects of thermal aging on deformation and failure mechanisms were investigated by using in-situ straining technique with simultaneous synchrotron XRD measurements.

Li, M.; Soppet, W.K.; Rink, D.L.; Listwan, J.T.; Natesan, K. (Nuclear Engineering Division)

2012-05-10T23:59:59.000Z

405

digestible energy concentration. However, this effect only appeared during the 2nd age period, barley being as efficient as maize immediately after weaning (ist age feed).  

E-Print Network [OSTI]

digestible energy concentration. However, this effect only appeared during the 2nd age period of the digestive transit in pregnant sows (crude fibre level and constipation) M. PALISSE, M. COLIN Y. MAURY); - an increase in the apparent digestibility of the diet after reduction of the cellulose level. Comparative

Paris-Sud XI, Universitť de

406

New Evidence for the Age of the Youngest Eruptions in the Valles...  

Open Energy Info (EERE)

Youngest Eruptions in the Valles Caldera, New Mexico Jump to: navigation, search OpenEI Reference LibraryAdd to library Journal Article: New Evidence for the Age of the Youngest...

407

Age and growth of southern flounder (Paralichthys lethostigma) from Matagorda Bay, Texas  

E-Print Network [OSTI]

Estimates of age and growth of southern flounder (Paralichthys lethostigma) from Matagorda Bay, Texas were made by analyzing thin sections of otoliths (sagittae) from 892 specimens collected along the Texas coast from May 1992 to January 1995...

Stunz, Gregory Wayne

1995-01-01T23:59:59.000Z

408

Built-in proactive tuning for circuit aging and process variation resilience  

E-Print Network [OSTI]

prediction due to different input vectors. The BIPT system is validated through SPICE simulations on benchmark circuits with consideration of process variations and NBTI, a static stress based PMOS aging effect. The experimental results indicate...

Shah, Nimay Shamik

2009-05-15T23:59:59.000Z

409

Voltage and Timing Adaptation for Variation and Aging Tolerance in Nanometer VLSI Circuits  

E-Print Network [OSTI]

Process variations and circuit aging continue to be main challenges to the power-efficiency of VLSI circuits, as considerable power budget must be allocated at design time to mitigate timing variations. Modern designs incorporate adaptive techniques...

Shim, Kyu-Nam 1978-

2012-09-10T23:59:59.000Z

410

E-Print Network 3.0 - age diet composition Sample Search Results  

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

of three diets, with sucrose and yeast concentra- tions ranging from 7% to 11% to 16% (wv). Besides age... of diet on survival (Fig. 1A) and mortality (Fig. 1B) as a function...

411

FRANTIC 5 (a version of FRANTIC II) : a computer code for evaluating system aging effect  

E-Print Network [OSTI]

The FRANTIC 5 code is a modification of the FRANTIC II code for time dependent unavailability analysis. FRANTIC 5 is specially adapted for modeling the aging effects on system and component performance. The FRANTIC 5 code ...

Dimitrijevic, Vesna B.

1986-01-01T23:59:59.000Z

412

Towards a hermeneutics of life practice for welfare professionals in the age of the ecological imperative†  

E-Print Network [OSTI]

Volz argues that the task of ethics can no longer be limited to the familiar questions of moral theory in the age of modernity: the questions of morality or right conduct for the autonomous individual (Volz, 1993; Kiesel ...

Clark, Chris

2006-01-01T23:59:59.000Z

413

Characterisation of lightly oxidised organic aerosol formed from the photochemical aging of diesel exhaust particles  

E-Print Network [OSTI]

The oxidative aging of the semivolatile fraction of diesel exhaust aerosol is studied in order to better understand the influence of oxidation reactions on particle chemical composition. Exhaust is sampled from an idling ...

Kroll, Jesse

414

E-Print Network 3.0 - age-dependent weight gain Sample Search...  

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

search results for: age-dependent weight gain Page: << < 1 2 3 4 5 > >> 1 On the Political Mechanisms of the Environmental Kuznets Curve for Global Water Quality1 Summary:...

415

Optimal Supply Angle of Upside Air Supply in Manned Spacecraft Cabin-Based Air Age  

E-Print Network [OSTI]

The age of air in the workaround of a manned spacecraft cabin that contain astronauts, apparatus and simple living establishments was numerically simulated by use of commercial software and a standard k-e turbulence model. An air inlet installed...

Liang, Z.; Zhang, J.; Lu, Y.

2006-01-01T23:59:59.000Z

416

E-Print Network 3.0 - age strength enhancement Sample Search...  

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

can enhance motivation and help determine appropriate strategies... and Aging, 16, 39-47. Frey, D. E., Kelbley, T. J., Durham, L., & James, J. S. (1992). Enhancing the self... ,...

417

Pottery Production and Social Complexity of the Bronze Age Cultures on the Chengdu Plain, Sichuan, China  

E-Print Network [OSTI]

XRF) 315 Thermal2010TN05W03: 9:7 Bronze Age III zhan XRD, XRF, Petro, TGA/DSC XRD, XRF, Petro, TGA/DSC Analysis Thin- undertaken

Lin, Kuei-chen

2013-01-01T23:59:59.000Z

418

230Th/U ages Supporting Hanford Site-Wide Probabilistic Seismic Hazard Analysis  

SciTech Connect (OSTI)

This product represents a USGS Administrative Report that discusses samples and methods used to conduct uranium-series isotope analyses and resulting ages and initial 234U/238U activity ratios of pedogenic cements developed in several different surfaces in the Hanford area middle to late Pleistocene. Samples were collected and dated to provide calibration of soil development in surface deposits that are being used in the Hanford Site-Wide probabilistic seismic hazard analysis conducted by AMEC. The report includes description of sample locations and physical characteristics, sample preparation, chemical processing and mass spectrometry, analytical results, and calculated ages for individual sites. Ages of innermost rinds on a number of samples from five sites in eastern Washington are consistent with a range of minimum depositional ages from 17 ka for cataclysmic flood deposits to greater than 500 ka for alluvium at several sites.

Paces, James B. [U.S. Geological Survey] [U.S. Geological Survey

2014-08-31T23:59:59.000Z

419

The White Dwarf Cooling Age of the Open Cluster NGC 2420  

E-Print Network [OSTI]

We have used deep HST WFPC2 observations of two fields in NGC 2420 to produce a cluster CMD down to V = 27. After imposing morphological selection criteria we find eight candidate white dwarfs in NGC 2420. Our completeness estimates indicate that we have found the terminus of the WD cooling sequence. We argue that the cluster distance modulus is likely to be close to 12.10 with E(B-V) = 0.04. With these parameters we find a white dwarf cooling age for NGC 2420 of 2.0 +- 0.20 (1 sigma) Gyrs. The 0.20 Gyr uncertainty includes errors in the photometry, sequence fitting, precursor time scales, and theoretical white dwarf cooling time scales. Comparing the cluster white dwarf cooling age to ages derived from stellar isochrone fitting we find a preference for ages derived from models incorporating convective overshoot.

Ted von Hippel; Gerard Gilmore

2000-06-02T23:59:59.000Z

420

No Evidence for Significant Age Spreads in Young Massive LMC Clusters  

E-Print Network [OSTI]

Recent discoveries have put the picture of stellar clusters being simple stellar populations into question. In particular, the color-magnitude diagrams of intermediate age (1-2 Gyr) massive clusters in the Large Magellanic Cloud (LMC) show features that could be interpreted as age spreads of 100-500 Myr. If multiple generations of stars are present in these clusters then, as a consequence, young (test this hypothesis. We analyzed the color-magnitude diagrams of these clusters and fitted their star formation history to derive upper limits of potential age spreads. We find that none of the clusters analyzed in this work shows evidence for an extended star formation history that would be consistent with the age spreads proposed for intermediat...

Niederhofer, Florian; Bastian, Nate; Silva-Villa, Esteban

2015-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "units age age" 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

Micro-algae come of age as a platform for recombinant protein production  

E-Print Network [OSTI]

et al. 2008), chlorophyta alga Ulva pertusa Table 1 Recentprotein production in algae Expression level achieved010-0326-5 REVIEW Micro-algae come of age as a platform for

Specht, Elizabeth; Miyake-Stoner, Shigeki; Mayfield, Stephen

2010-01-01T23:59:59.000Z

422

ARAACtional exuberance : lessons and prospects for age-restricted active adult housing development in Massachusetts  

E-Print Network [OSTI]

In the last fifteen years, Massachusetts and neighboring states have experienced explosive growth in a hitherto alien form of residential development to the region: the age-restricted active adult retirement community ...

Dawson, Sloan William

2010-01-01T23:59:59.000Z

423

E-Print Network 3.0 - advanced grandparental age Sample Search...  

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

that was due... ,is derived from soil,and hence from the underlying bedrock and from rainwater. Geologies of different ages... of the individual's birth was used if the...

424

E-Print Network 3.0 - age distribution genetics Sample Search...  

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

10.1534genetics.108.086801 Summary: across all ages. This result implies a genetic trade-off between the two traits in early lifeand may help... of environmental conditions on...

425

User-centered system design in an aging society : an integrated study on technology adoption  

E-Print Network [OSTI]

The aging of the population is an important global phenomenon that is bringing changes and challenges to various areas of society. Technology has been explored as one way to cope with the complexities and uncertainties ...

Lee, Chaiwoo

2014-01-01T23:59:59.000Z

426

Age and cross-cultural comparison of drivers' cognitive workload and performance in simulated urban driving  

E-Print Network [OSTI]

Driving demands significant psychomotor attention and requires even more when drivers are engaged in secondary tasks that increase cognitive workload and divert attention. It is well established that age influences driving ...

Son, J.

427

E-Print Network 3.0 - ageing model podospora Sample Search Results  

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

Sample search results for: ageing model podospora Page: << < 1 2 3 4 5 > >> 1 Current Biology 21, 134139, January 25, 2011 2011 Elsevier Ltd All rights reserved DOI 10.1016...

428

E-Print Network 3.0 - age-dependent gene expression Sample Search...  

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

search results for: age-dependent gene expression Page: << < 1 2 3 4 5 > >> 1 Current Biology, Vol. 12, 712723, April 30, 2002, 2002 Elsevier Science Ltd. All rights reserved. PII...

429

E-Print Network 3.0 - aging-related cognitive dysfunction Sample...  

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

cognitive dysfunction Search Powered by Explorit Topic List Advanced Search Sample search results for: aging-related cognitive dysfunction Page: << < 1 2 3 4 5 > >> 1 In press in...

430

E-Print Network 3.0 - aging mild cognitive Sample Search Results  

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

mild cognitive Search Powered by Explorit Topic List Advanced Search Sample search results for: aging mild cognitive Page: << < 1 2 3 4 5 > >> 1 Cite this article as: BMJ, doi:...

431

Building a national technology and innovation infrastructure for an aging society  

E-Print Network [OSTI]

This thesis focuses on the potential of strategic technology innovation and implementation in sustaining an aging society, and examines the need for a comprehensive national technology and innovation infrastructure in the ...

Lau, Jasmin

2006-01-01T23:59:59.000Z

432

E-Print Network 3.0 - aging pulsar wind Sample Search Results  

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

pulsar wind Search Powered by Explorit Topic List Advanced Search Sample search results for: aging pulsar wind Page: << < 1 2 3 4 5 > >> 1 Since the discovery of pulsars in the...

433

Constraints on the Age of Heating at the Fenton Hill Site, Valles...  

Open Energy Info (EERE)

OpenEI Reference LibraryAdd to library Journal Article: Constraints on the Age of Heating at the Fenton Hill Site, Valles Caldera, New Mexico Abstract Subsurface samples and...

434

Age associated differences in response to lipopolysaccharide: central role of TNF  

E-Print Network [OSTI]

of cytokines. Glucocorticoids, natural inhibitors of cytokine production, were present at comparable levels in both age groups though the levels were maximized at a lower concentration of LPS in 24 mo old animals. Exogenous glucocorticoids were also effective...

Chorinchath, Biju Bhaskar

1995-01-01T23:59:59.000Z

435

Social Cognition in Later Life: Effects of Aging and Task Type on Theory of Mind Performance†  

E-Print Network [OSTI]

Abstract Recent studies assessing the effects of age and task type on theory of mind (ToM) have found mixed results. However, these studies have not considered the possibility that by using a series of distinct and unrelated ...

Doyle, Claire L.

2009-07-03T23:59:59.000Z

436

E-Print Network 3.0 - age horizontal branch Sample Search Results  

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

Sciences, Indiana University Collection: Biology and Medicine 4 arXiv:0905.2407v1astro-ph.GA14May2009 To appear in Astronomical Journal Summary: with both age and metallicity...

437

Efficacy, national/international practices and motivational factors of lifelong driver education for the aging population  

E-Print Network [OSTI]

In a society facing a significant increase in its aging population, older driver education/training is emerging as a potential solution to help seniors drive more safely, thus maintaining their mobility and quality of life. ...

Israels, Richard (Richard Steven)

2006-01-01T23:59:59.000Z

438

E-Print Network 3.0 - age related white Sample Search Results  

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

white Search Powered by Explorit Topic List Advanced Search Sample search results for: age related white Page: << < 1 2 3 4 5 > >> 1 The effects of healthcare provisions on the 4X...

439

E-Print Network 3.0 - age-related white matter Sample Search...  

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

white matter Search Powered by Explorit Topic List Advanced Search Sample search results for: age-related white matter Page: << < 1 2 3 4 5 > >> 1 Assessing Early Brain Development...

440

E-Print Network 3.0 - age-related cardiac disease Sample Search...  

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

3 4 5 > >> 1 Drosophila as a model for the identification of genes causing adult human heart disease Summary: on age-related changes (8, 9). Prior studies of adult Drosophila...

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


441

E-Print Network 3.0 - age-associated cardiac remodeling Sample...  

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

McCrea JC, Hedrick HL: Age-associated changes in cardiac matrix and integrins. Mech... heart disease. Braz J Med Biol Res 2000;33:407-413. 44 Severs NJ: Gap junction remodeling...

442

E-Print Network 3.0 - aged donor heart Sample Search Results  

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

donor heart Search Powered by Explorit Topic List Advanced Search Sample search results for: aged donor heart Page: << < 1 2 3 4 5 > >> 1 Universal noninvasive detection of solid...

443

From Turbo2 to TurboWin For ages already, information about  

E-Print Network [OSTI]

From Turbo2 to TurboWin For ages already, information about the weather on board ships was re the operating sys- tem MsDOS and was called, suggesting a `speedy' character, Turbo2 (Turbo Transmission

Koek, Frits

444

E-Print Network 3.0 - age-related cortical brain Sample Search...  

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

brain Search Powered by Explorit Topic List Advanced Search Sample search results for: age-related cortical brain Page: << < 1 2 3 4 5 > >> 1 Mapping Cortical Thickness and Gray...

445

Localized measures of callosal atrophy are associated with late-life hypertension: AGES-Reykjavik Study.  

E-Print Network [OSTI]

Older Subjects. Hypertension, 36: 1079-1082. Harris, TB. ,follow-up of 999 men. Hypertension, 31: 780- 786. Kobayashi,Asia Aging Study. Hypertension, 44 (1): 29-34. Launer et al.

2008-01-01T23:59:59.000Z

446

Accelerated Thermal Aging of Fe-Zeolite SCR Catalysts Using an...  

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

Thermal Aging of Fe-Zeolite SCR Catalysts Using an Engine-based Systems Approach Poster P Poster P - - 2 2, Wednesday Bruce Bunting and Todd Toops Oak Ridge National Laboratory...

447

Mapping local hippocampal changes in Alzheimer's disease and normal ageing with MRI at 3 Tesla  

E-Print Network [OSTI]

Mapping local hippocampal changes in Alzheimer's disease and normal ageing with MRI at 3 Tesla and Alzheimer's disease based on high resolution MRI at 3 Tesla. T1-weighted images were acquired from 19

Thompson, Paul

448

Examining Age-Related Use of Visual Imagery Subprocesses in Children  

E-Print Network [OSTI]

This study examined the age-related ability of children (7 to 11 years) and adults to use visual imagery in tasks requiring the subprocesses of imagery generation, maintenance and inspection. Previous work had shown that young children...

Oliver, Brittney

2011-08-08T23:59:59.000Z

449

Sleep and Cortisol in Preschool-Aged Children with Autism and Typically Developing Children  

E-Print Network [OSTI]

after administration of 5-HTP, a precursor to serotonin.age berghs, 22 CONT before 5-HTP years of no differences inHealthy teen Belgium (post- HTP volunteers available from

Kidd, Sharon Audrey

2010-01-01T23:59:59.000Z

450

Organic chemical aging mechanisms: An annotated bibliography. Waste Tank Safety Program  

SciTech Connect (OSTI)

An annotated bibliography has been compiled of the potential chemical and radiological aging mechanisms of the organic constituents (non-ferrocyanide) that would likely be found in the UST at Hanford. The majority of the work that has been conducted on the aging of organic chemicals used for extraction and processing of nuclear materials has been in conjunction with the acid or PUREX type processes. At Hanford the waste being stored in the UST has been stabilized with caustic. The aging factors that were used in this work were radiolysis, hydrolysis and nitrite/nitrate oxidation. The purpose of this work was two-fold: to determine whether or not research had been or is currently being conducted on the species associated with the Hanford UST waste, either as a mixture or as individual chemicals or chemical functionalities, and to determine what areas of chemical aging need to be addressed by further research.

Samuels, W.D.; Camaioni, D.M.; Nelson, D.A.

1993-09-01T23:59:59.000Z

451

Organic tanks safety program, FY97 waste aging studies. Revision 1  

SciTech Connect (OSTI)

To model tank waste aging and interpret tank waste speciation results, the authors began measuring the reactivity of organic complexants and related compounds towards radiation-induced oxidation reactions. Because of the high efficiency of scavenging of the primary radicals of water radiolysis by nitrate and nitrite ion, the major radiolytically-generated radicals in these solutions, and in Hanford tank wastes, are NO{sub 2}, NO and O{sup {minus}}. Prior to this effort, little quantitative information existed for the reactions of these radicals with organic compounds such as those that were used in Hanford processes. Therefore, modeling of actual waste aging, or even simulated waste aging, was not feasible without measuring reactivities and determining reaction paths. The authors have made the first rate measurements of complexant aging and determined some of their degradation products.

Camaioni, D.M.; Samuels, W.D.; Linehan, J.C.; Sharma, A.K.; Hogan, M.O.; Lilga, M.A.; Clauss, S.A.; Wahl, K.L.; Campbell, J.A.

1998-02-01T23:59:59.000Z

452

E-Print Network 3.0 - aged female beagles Sample Search Results  

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

Opportunity to access new audiences of all age groups. Traditional TV... Greenhouse Effect 12;X-Box Live Marketplace 12;12;12;The Mother - Mars Express 12;The Baby -...

453

E-Print Network 3.0 - aged beagles histomorphometry Sample Search...  

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

Opportunity to access new audiences of all age groups. Traditional TV... Greenhouse Effect 12;X-Box Live Marketplace 12;12;12;The Mother - Mars Express 12;The Baby -...

454

E-Print Network 3.0 - aged ovariectomized beagles Sample Search...  

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

Opportunity to access new audiences of all age groups. Traditional TV... Greenhouse Effect 12;X-Box Live Marketplace 12;12;12;The Mother - Mars Express 12;The Baby -...

455

The Seattle Central Library: Civic Architecture in the Age of Media [Media and the City  

E-Print Network [OSTI]

other more immersive digital media. In much of the rhetoricarchitecture in an age of digital media by using spatiallyutopia. In the world of digital media, as exempli?ed in

Murphy, Amy

2006-01-01T23:59:59.000Z

456

E-Print Network 3.0 - aged human brain Sample Search Results  

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

of the human Summary: le of the human brain: an in vivo 1 H-MRS study of young versus middle-aged subjects Igor D. Grachev,*, , Amar... and their relationships in normal...

457

E-Print Network 3.0 - ageing human brain Sample Search Results  

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

of the human Summary: le of the human brain: an in vivo 1 H-MRS study of young versus middle-aged subjects Igor D. Grachev,*, , Amar... and their relationships in normal...

458

Towards a post-industrial architecture : design and construction of houses for the information age  

E-Print Network [OSTI]

The design and construction of modern residential architecture, which came into critical focus by architects of the Machine Age, continues to be a priority in the architectural discourse. For Modern architects, the desire ...

Demchak, Gregory L. (Gregory Leonard), 1974-

2000-01-01T23:59:59.000Z

459

E-Print Network 3.0 - age-related human small Sample Search Results  

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

by Explorit Topic List Advanced Search Sample search results for: age-related human small Page: << < 1 2 3 4 5 > >> 1 Biogerontology 4: 119120, 2003. 2003 Kluwer Academic...

460

E-Print Network 3.0 - age gastric cancer Sample Search Results  

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

gastric cancer Search Powered by Explorit Topic List Advanced Search Sample search results for: age gastric cancer Page: << < 1 2 3 4 5 > >> 1 Near-infrared Raman spectroscopy for...

Note: This page contains sample records for the topic "units age age" 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

E-Print Network 3.0 - age-adjusted cancer mortality Sample Search...  

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

cancer mortality Search Powered by Explorit Topic List Advanced Search Sample search results for: age-adjusted cancer mortality Page: << < 1 2 3 4 5 > >> 1 aallll IIrreell aanndd...

462

E-Print Network 3.0 - age attending daycare Sample Search Results  

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

and Summary: have dependents who will be attending school in the U.S., be sure to bring birth certificates or proof... of age and all medical, dental, and academic records for...

463

E-Print Network 3.0 - aged mouse ovaries Sample Search Results  

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

ovaries Search Powered by Explorit Topic List Advanced Search Sample search results for: aged mouse ovaries Page: << < 1 2 3 4 5 > >> 1 Journal of Reproduction and Fertility (1994)...

464

Regulation of Endothelial Phenotype in Rat Soleus Muscle Feed Arteries: Influence of Aging and Exercise Training  

E-Print Network [OSTI]

ameliorates this impairment in endothelial function. Therefore in these series of studies we sought to test three major hypotheses: 1) That exercise training reverses age-related decrements in endothelium-dependent dilation in SFA and that this improved...

Trott, Daniel Wayne

2012-02-14T23:59:59.000Z

465

E-Print Network 3.0 - aged 2-13 years Sample Search Results  

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

on the plots... 1 Two-Aged Development of a Hickory and Yellow-Poplar Stand at Chuck Swan State Forest- Preliminary... , Wildlife and Fisheries Forestry, Wildlife, and Fisheries...

466

E-Print Network 3.0 - aging-related barrier dysfunction Sample...  

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

2009 Bentham Science Publishers Ltd. Summary: , Thurston, G, Rochon-Duck, M, Le, T, Brekken, R, McDonald, DM. (2004) Age-related changes in vascular... response with...

467

The Effect of the 18-Year Old Drinking Age on Auto Accidents  

E-Print Network [OSTI]

The effect of Massachusetts' reduced drinking age on auto accidents is examined by employing an interrupted time series analysis of monthly accident data covering the period January, 1969, through September 1973. The data ...

Cucchiaro, Stephen

468

Conversion of residential neighborhoods into affordable assisted age-in-place communities  

E-Print Network [OSTI]

The purpose of this thesis is to develop a new senior housing and service product for the aging population of the next decade. The thesis starts with an overview of the senior housing industry in its current condition in ...

Getz Schoen, Yael

2011-01-01T23:59:59.000Z

469

Improved age control on early Homo fossils from the upper Burgi Member at Koobi Fora, Kenya  

E-Print Network [OSTI]

Improved age control on early Homo fossils from the upper Burgi Member at Koobi Fora, Kenya in Areas 105 and 131 on the Karari Ridge in the eastern Turkana Basin (Kenya). We identify the base

Utrecht, Universiteit

470

Improved age control on early Homo fossils from the upper Burgi Member at Koobi Fora, Kenya  

E-Print Network [OSTI]

1 Improved age control on early Homo fossils from the upper Burgi Member at Koobi Fora, Kenya in Areas 105 and 131 on the Karari Ridge in the eastern Turkana Basin (Kenya). We identify the base

Paris-Sud XI, Université de

471

E-Print Network 3.0 - age xenocrystic zircons Sample Search Results  

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

SE Tibetan Plateau) by depth profiling: Time scales and nature of Summary: short-lived uranium-thorium (U-Th) isotopes. Here we report U-Th zircon ages from Maanshan volcano...

472

Effects of aging and exercise training on structural and vasoconstrictor properties of skeletal muscle arterioles  

E-Print Network [OSTI]

in the structural properties of the resistance vasculature. We hypothesized that stiffness and vasoconstriction would be greater in skeletal muscle arterioles from old rats, and that endurance exercise training would ameliorate the associated with aging alterations...

Donato, Anthony John

2004-11-15T23:59:59.000Z

473

An evaluation of the impacts of aging on skeletal muscle performance in several mammalian divers  

E-Print Network [OSTI]

caused by increased buoyancy and decreased aerobic dive limit become apparent. The model also addresses the idea that behavioral plasticity may allow older animals to compensate for age-related performance constraints....

Hindle, Allyson Gayle

2009-05-15T23:59:59.000Z

474

Effects of changes of food type for different aged postlarval blue shrimp cultured in a raceway  

E-Print Network [OSTI]

EFFECTS OF CHANGES OF FOOD TYPE FOR DIFFERENT AGED POSTLARVAL BLUE SHRIMP CULTURED IN A RACEWAY A Thesis by HELEN MARIE MORALES Submitted to the Graduate College of Texas ASM University in partial fulfillment of the requirement... for the degree of MASTER OF SCIENCE December 1980 Major subject: wildlife and Fisheries sciences EFFECTS OF CHANGES OF FOOD TYPE FOR DIFFERENT AGED POSTLARVAL BLUE SHRIMP CULTURED IN A RACEWAY A Thesis by HELEN MARIE MORALES Approved as to style...

Morales, Helen Marie

1980-01-01T23:59:59.000Z

475

Delta ferrite-containing austenitic stainless steel resistant to the formation of undesirable phases upon aging  

DOE Patents [OSTI]

Austenitic stainless steel alloys containing delta ferrite, such as are used as weld deposits, are protected against the transformation of delta ferrite to sigma phase during aging by the presence of carbon plus nitrogen in a weight percent 0.015-0.030 times the volume percent ferrite present in the alloy. The formation of chi phase upon aging is controlled by controlling the Mo content.

Leitnaker, James M. (Kingston, TN)

1981-01-01T23:59:59.000Z

476

Influence of age/size and grazing history on understory relationships of Ashe juniper  

E-Print Network [OSTI]

INFLUENCE OF AGE/SIZE AND GRAZING HISTORY ON UNDERSTORY RELATIONSHIPS OF ASHE JUNIPER A Thesis by SAMUEL DEAN FUHLENDORF 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 1992 Major Subject: Rangeland Ecology and Management INFLUENCE OF AGE/SIZE AND GRAZING HISTORY ON UNDERSTORY RELATIONSHIPS OF ASHE JUNIPER A Thesis by SAMUEL DEAN FUHLENDORF Approved as to style and content by...

Fuhlendorf, Samuel Dean

1992-01-01T23:59:59.000Z

477

Uranium-series comminution ages of continental sediments: Case study of a Pleistocene alluvial fan  

SciTech Connect (OSTI)

Obtaining quantitative information about the timescales associated with sediment transport, storage, and deposition in continental settings is important but challenging. The uranium-series comminution age method potentially provides a universal approach for direct dating of Quaternary detrital sediments, and can also provide estimates of the sediment transport and storage timescales. (The word"comminution" means"to reduce to powder," reflecting the start of the comminution age clock as reduction of lithic parent material below a critical grain size threshold of ~;;50 mu m.) To test the comminution age method as a means to date continental sediments, we applied the method to drill-core samples of the glacially-derived Kings River Fan alluvial deposits in central California. Sediments from the 45 m core have independently-estimated depositional ages of up to ~;;800 ka, based on paleomagnetism and correlations to nearby dated sediments. We characterized sequentially-leached core samples (both bulk sediment and grain size separates) for U, Nd, and Sr isotopes, grain size, surface texture, and mineralogy. In accordance with the comminution age model, where 234U is partially lost from small sediment grains due to alpha recoil, we found that (234U/238U) activity ratios generally decrease with age, depth, and specific surface area, with depletions of up to 9percent relative to radioactive equilibrium. The resulting calculated comminution ages are reasonable, although they do not exactly match age estimates from previous studies and also depend on assumptions about 234U loss rates. The results indicate that the method may be a significant addition to the sparse set of available tools for dating detrital continental sediments, following further refinement. Improving the accuracy of the method requires more advanced models or measurements for both the recoil loss factor fa and weathering effects. We discuss several independent methods for obtaining fa on individual samples that may be useful for future studies.

Lee, Victoria E.; DePaolo, Donald J.; Christensen, John N.

2010-04-30T23:59:59.000Z

478

Thermal Stability and Aging Characteristics of Chromate Conversion Coatings on Aluminum Alloy 2024-T3  

SciTech Connect (OSTI)

XANES and electrochemical impedance spectroscopes were used in parallel to correlate the amount of Cr(VI) in chromate conversion coatings (CCC) on Al 2024 and their corrosion resistance in order to understand the degradation mechanisms upon aging or heating. Cr(VI) species appear to be immobilized for temperatures higher than 80 C due to dehydration. CCC are shown to be dynamic in the first month of aging with no significant dehydration. Another degradation mechanism involving chemical changes is to be considered.

Laget, V.; Jeffcoate, C.; Isaacs, H. S.; Buchheit, R. G.

1999-10-17T23:59:59.000Z

479

Effect of age on vibration sensitivity and motor nerve conduction among females  

E-Print Network [OSTI]

EFFECT OF AGE ON VIBRATION SENSITIVITY AND MOTOR NERVE CONDUCTION AMONG FEMALES A Thesis by LES IA LA WON CRUMPTON 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 December 1990 Major Subject: Industrial Engineering EFFECT OF AGE ON VIBRATION SENS~ AND MOTOR NERVE CONDUCTION AlvIONG FEMALES A Thesis by LESIA LAWON CRUMPTON Approved as to style and content by: erome J. nglet (Chair...

Crumpton, Lesia LaWon

1990-01-01T23:59:59.000Z

480

The Impact of Age on Quantitative Infrared Pupillometry in Healthy Children 1-18 Years  

E-Print Network [OSTI]

THE IMPACT OF AGE ON QUANTITATIVE INFRARED PUPILLOMETRY IN HEALTHY CHILDREN 1-18 YEARS BY JACOB TYLER BROWN PharmD, Creighton University School of Pharmacy, 2010 Submitted to the graduate degree program in Clinical Research... thesis: THE IMPACT OF AGE ON QUANTITATIVE INFRARED PUPILLOMETRY IN HEALTHY CHILDREN 1-18 YEARS _________________________________________ Chairperson Theresa I. Shireman, RPh, PhD Date approved: April 8, 2014...

Brown, Jacob

2014-05-31T23:59:59.000Z

Note: This page contains sample records for the topic "units age age" 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

The digestibility of buffelgrass (Cenchrus ciliaris L.) genotypes as influenced by tiller type, age and season  

E-Print Network [OSTI]

THE DIGESTIBILITY OF BUFFELGRASS (CENCHRUS CILIARIS L. ) GENOTYPES AS INFLUENCED BY TILLER TYPE, AGE AND SEASON A Thesis by TOMMY LEE THOMPSON Submitted to the Graduate College of Texas A&M University in partial fulfillment of the requirement... for the degree of MASTER OF SCIENCE August 1981 Major Subject: Agronomy THE DIGESTIBILITY OF BUFFELGRASS (CENCHRUS CILIARIS L. ) GENOTYPES AS INFLUENCED BY TILLER TYPE, AGE AND SEASON A Thesis by TOMMY LEE THOMPSON Approved as to style and content by: E...

Thompson, Tommy Lee

1981-01-01T23:59:59.000Z

482

Experimental Analysis of Water Based Drilling Fluid Aging Processes at High Temperature and High Pressure Conditions  

E-Print Network [OSTI]

! ! EXPERIMENTAL ANALYSIS OF WATER BASED DRILLING FLUID AGING PROCESSES AT HIGH TEMPERATURE AND HIGH PRESSURE CONDITIONS A Thesis by BRANDON SCOTT ZIGMOND Submitted to the Office of Graduate Studies of Texas A&M University... Temperature and High Pressure Conditions Copyright 2012 Brandon Scott Zigmond ! ! EXPERIMENTAL ANALYSIS OF WATER BASED DRILLING FLUID AGING PROCESSES AT HIGH TEMPERATURE AND HIGH PRESSURE CONDITIONS A Thesis by BRANDON SCOTT ZIGMOND Submitted...

Zigmond, Brandon

2012-10-19T23:59:59.000Z

483

Effects of chronological age and physiological maturity on palatability traits of ovine carcasses  

E-Print Network [OSTI]

EFFECTS OF CHRONOLOGICAL AGE AND PHYSIOLOGICAL MATURITY ON PALATABILITY TRAITS OF OVINE CARCASSES A Thesis by BOBBY RAY STOUT Submitted to the Graduate College of Texas A&M University in partial fulfillment of the requirement for the degree... of Committee) ( -Chairman o Committee) (Head of Department) (Member) December 1914 ABSTRACT Effects of Chronological Age and Physiological Maturity on Palatability Traits of Ovine Carcasses. (December 1974) Bobby Ray Stout, B. S. , Texas A&M University...

Stout, Bobby Ray

1974-01-01T23:59:59.000Z

484

2/14/14 10:42 AMCoursera Blog The Age of Sustainable Development from Jeff Sachs, Columbia University Page 1 of 3http://blog.coursera.org/post/70466942063/the-age-of-sustainable-development-from-jeff-sachs  

E-Print Network [OSTI]

2/14/14 10:42 AMCoursera Blog ∑ The Age of Sustainable Development from Jeff Sachs, Columbia University Page 1 of 3http://blog.coursera.org/post/70466942063/the-age-of-sustainable-development-from-jeff-sachs About Partners Community Team Careers Press Blog The Age of Sustainable Development from Jeff Sachs

485

The Effects of Healthy Aging on Recollection and Familiarity Components of Recognition Memory and Frontal Lobe Function†  

E-Print Network [OSTI]

According to the dual-process hypothesis of memory and aging (DPHMA), aging is associated with a decline in recollection efficiency and a relative stability in familiarity based mechanisms. The current study was carried ...

May, Michelle F M

2008-06-27T23:59:59.000Z

486

A commodity approach to aging management review of supports for license renewal  

SciTech Connect (OSTI)

10CFR Part 54 requires that nuclear power plant licensees who seek renewal of their operating licenses for an additional 20 years of operation (i.e., for a total operating life of 60 years) perform an Integrated Plant Assessment (IPA) on all systems, structures and components (SSCs) within the scope of license renewal. Baltimore Gas and Electric (BGE) and MPR Associates, Inc., have recently completed an aging management review of component supports for Calvert Cliffs Nuclear Power Plant (CCNPP). A commodity approach was used on the basis that component supports perform essentially the same function regardless of the system with which they are associated. This approach, i.e., treating component supports as commodities as opposed to performing the aging management review for each individual component support, resulted in a cost-effective approach for this portion of the IPA. An important feature of the aging management review of component support at CCNPP is the evaluation of the adequacy of existing programs to manage component support aging. Two major programs were included in the evaluation: the ASME Section 11 In-Service Inspection (ISI) Program, and CCNPP`s Seismic Verification Project to resolve USI A-46. The key role that these programs play in the overall aging management strategy for component supports, as well as the evaluation of other on-going activities which complete the aging management approach for component supports, are discussed.

Schlaseman, C.S. [MPR Associates, Inc., Washington, DC (United States); Tilden, B.M. [Baltimore Gas and Electric Co., MD (United States)

1996-09-01T23:59:59.000Z

487

Aging mechanisms in the Westinghouse PWR (Pressurized Water Reactor) Control Rod Drive system  

SciTech Connect (OSTI)

An aging assessment of the Westinghouse Pressurized Water Reactor (PWR) Control Rod System (CRD) has been completed as part of the US NRC's Nuclear Plant Aging Research, (NPAR) Program. This study examined the design, construction, maintenance, and operation of the system to determine its potential for degradation as the plant ages. Selected results from this study are presented in this paper. The operating experience data were evaluated to identify the predominant failure modes, causes, and effects. From our evaluation of the data, coupled with an assessment of the materials of construction and the operating environment, we conclude that the Westinghouse CRD system is subject to degradation which, if unchecked, could affect its safety function as a plant ages. Ways to detect and mitigate the effects of aging are included in this paper. The current maintenance for the control rod drive system at fifteen Westinghouse PWRs was obtained through a survey conducted in cooperation with EPRI and NUMARC. The results of the survey indicate that some plants have modified the system, replaced components, or expanded preventive maintenance. Several of these activities have effectively addressed the aging issue. 2 refs., 2 figs., 2 tabs.

Gunther, W.; Sullivan, K.

1991-01-01T23:59:59.000Z

488

Spectral energy distributions and age estimates of 104 M31 globular clusters  

E-Print Network [OSTI]

We present photometry of 104 M31 globular clusters (GCs) and GC candidates in 15 intermediate-band filters of the Beijing-Arizona-Taiwan-Connecticut (BATC) photometric system. The GCs and GC candidates were selected from the Revised Bologna Catalog (v.3.5). We obtain the cluster ages by comparing the photometric data with up-to-date theoretical synthesis models. The photometric data used are {\\sl GALEX} far- and near-ultraviolet and 2MASS near-infrared $JHK_{\\rm s}$ magnitudes, combined with optical photometry. The ages of our sample clusters cover a large range, although most clusters are younger than 10 Gyr. Combined with the ages obtained in our series of previous papers focusing on the M31 GC system, we present the full M31 GC age distribution. The M31 GC system contains populations of young and intermediate-age GCs, as well as the `usual' complement of well-known old GCs, i.e., GCs of similar age as the majority of the Galactic GCs. In addition, young GCs (and GC candidates) are distributed nearly unifor...

Wang, Song; Ma, Jun; de Grijs, Richard; Zhou, Xu

2010-01-01T23:59:59.000Z

489

Aging in catastrophe as a mechanism for oscillations in microtubule dynamics  

E-Print Network [OSTI]

Several independent observations have suggested that catastrophe transition in microtubules is not a first-order process, as is usually assumed. Recent in vitro observations by Gardner et al.[Cell {\\bf147}, 1092 (2011)] showed that microtubule catastrophe takes place via multiple steps, and the frequency increases with the "age" of the filament. Here, we investigate, via numerical simulations and mathematical calculations, some of the consequences of age-dependence of catastrophe on the dynamics of microtubules as a function of the aging rate, for two different models of aging: (a) exponential growth, but saturating asymptotically and (b) purely linear growth. The boundary demarcating the steady state and non-steady state regimes in the dynamics is derived analytically in both cases. Numerical simulations, supported by analytical calculations in the linear model, show that aging leads to non-exponential length distributions in steady state, as well as oscillations in microtubule length. The oscillations are reduced and eventually eliminated by increasing the frequency of rescue events. Our study shows that age-dependence of catastrophe could function as an intrinsic mechanism to generate oscillatory dynamics in a microtubule population, distinct from hitherto identified ones.

V. Jemseena; Manoj Gopalakrishnan

2014-12-16T23:59:59.000Z

490

Agee, J. K. (1993). Fire Ecology of Pacific Northwest Forests. Washington, DC: Island Aldrich, J. W. 1963. Geographic orientation of North American Tetraonidae. J. Wildl.  

E-Print Network [OSTI]

References A Agee, J. K. (1993). Fire Ecology of Pacific Northwest Forests. Washington, DC: Island in beaver. J. Mammal. 49(4):759-762. Aleksiuk, M. 1970. The seasonal food regime of arctic beavers. Ecology classification of ecological communities: terrestrial vegetation of the United States. Volume II. The National

491

Powertrain Component Inspection from Mid-Level Blends Vehicle Aging Study  

SciTech Connect (OSTI)

The Energy Independence and Security Act of 2007 calls on the nation to significantly increase its use of renewable fuels to meet its transportation energy needs. The law expands the renewable fuel standard to require use of 36 billion gallons of renewable fuel by 2022. Given that ethanol is the most widely used renewable fuel in the U.S. market, ethanol will likely make up a significant portion of the 36-billion-gallon requirement. The vast majority of ethanol used in the United States is blended with gasoline to create E10-gasoline with up to 10% ethanol. The remaining ethanol is sold in the form of E85 - a gasoline blend with as much as 85% ethanol that can only be used in flexible-fuel vehicles (FFVs). Consumption of E85 is at present limited by both the size of the FFV fleet and the number of E85 fueling stations. Gasoline consumption in the United States is currently about 140 billion gallons per year; thus the maximum use of ethanol as E10 is only about 14 billion gallons. While the U.S. Department of Energy (DOE) remains committed to expanding the E85 infrastructure, that market represented less than 1% of the ethanol consumed in 2010 and will not be able to absorb projected volumes of ethanol in the near term. Because of these factors, DOE and others have been assessing the viability of using mid-level ethanol blends (E15 or E20) as a way to accommodate growing volumes of ethanol. The DOE Mid-Level Ethanol Blends Test Program has been under way since 2007, supported jointly by the Office of the Biomass Program and the Vehicle Technologies Program. One of the larger projects, the Catalyst Durability Study, or Vehicle Aging Study, will be completed early in calendar year 2011. The following report describes a subproject of the Vehicle Aging Study in which powertrain components from 18 of the vehicles were examined at Southwest Research Institute under contract to Oak Ridge National Laboratory (ORNL).

Shoffner, Brent [Southwest Research Institute, San Antonio; Johnson, Ryan [Southwest Research Institute, San Antonio; Heimrich, Martin J. [Southwest Research Institute, San Antonio; Lochte, Michael [Southwest Research Institute, San Antonio

2010-11-01T23:59:59.000Z

492

Constant power cycling for accelerated ageing of supercapacitors Kreczanik Paul, Martin Christian, Venet Pascal, Clerc Guy, Rojat Gerard, Zitouni Younes  

E-Print Network [OSTI]

Constant power cycling for accelerated ageing of supercapacitors Kreczanik Paul, Martin Christian the competitive pole (Lyon Urban Truck and Bus 2015). Keywords ¬ęSupercapacitor¬Ľ, ¬ęPower cycling¬Ľ, ¬ęLifetime¬Ľ, ¬ęAccelerated ageing¬Ľ, ¬ęAgeing law¬Ľ Abstract This paper deals with the lifetime of supercapacitors used

Paris-Sud XI, Université de

493

Postdoctoral Position Available October 1, 2014 The Center for Demography of Health and Aging (CDHA) at the University of Wisconsin-  

E-Print Network [OSTI]

Postdoctoral Position Available October 1, 2014 The Center for Demography of Health and Aging (CDHA) at the University of Wisconsin- Madison invites applications for a postdoctoral fellowship in the demography of aging and the life course, funded by the National Institute on Aging. The NIA postdoctoral fellowship

Wisconsin at Madison, University of

494

Dry Versus Wet Aging of Beef: Retail Cutting Yields and Palatability Evaluations of Steaks Using Alternative Cutting Styles  

E-Print Network [OSTI]

Boneless ribeye rolls (n = 12) and boneless top sirloin butts (n = 12) were obtained from heavy weight carcasses (mean = 407.8 kg), assigned to one of two aging treatments (dry or wet) and aged for 35 days at a commercial aging facility. Cutting...

Smith, Amanda 1987-

2012-12-05T23:59:59.000Z

495

Intergrated study of the Devonian-age black shales in eastern Ohio. Final report  

SciTech Connect (OSTI)

This integrated study of the Devonian-age shales in eastern Ohio by the Ohio Department of Natural Resources, Division of Geological Survey is part of the Eastern Gas Shales Project sponsored by the US Department of Energy. The six areas of research included in the study are: (1) detailed stratigraphic mapping, (2) detailed structure mapping, (3) mineralogic and petrographic characterization, (4) geochemical characterization, (5) fracture trace and lineament analysis, and (6) a gas-show monitoring program. The data generated by the study provide a basis for assessing the most promising stratigraphic horizons for occurrences of natural gas within the Devonian shale sequence and the most favorable geographic areas of the state for natural gas exploration and should be useful in the planning and design of production-stimulation techniques. Four major radioactive units in the Devonian shale sequence are believed to be important source rocks and reservoir beds for natural gas. In order of potential for development as an unconventional gas resource, they are (1) lower and upper radioactive facies of the Huron Shale Member of the Ohio Shale, (2) upper Olentangy Shale (Rhinestreet facies equivalent), (3) Cleveland Shale Member of the Ohio Shale, and (4) lower Olentangy Shale (Marcellus facies equivalent). These primary exploration targets are recommended on the basis of areal distribution, net thickness of radioactive shale, shows of natural gas, and drilling depth to the radioactive unit. Fracture trends indicate prospective areas for Devonian shale reservoirs. Good geological prospects in the Devonian shales should be located where the fracture trends coincide with thick sequences of organic-rich highly radioactive shale.

Gray, J.D.; Struble, R.A.; Carlton, R.W.; Hodges, D.A.; Honeycutt, F.M.; Kingsbury, R.H.; Knapp, N.F.; Majchszak, F.L.; Stith, D.A.

1982-09-01T23:59:59.000Z

496

Hydrogeologic factors affecting cavern morphology within rocks of Mississippian age in northwestern Arkansas  

SciTech Connect (OSTI)

Cavern development within rocks of Mississippian age in northwestern Arkansas is associated with two Pleistocene erosional features, the Boston Mountains Plateau and the Springfield Plateau. Each plateau is characterized by a distinct stratigraphic sequence with unique lithologies. Cavern morphology (both cross-sectional and planimetric) in each plateau is the result of the complex interaction of numerous hydrogeologic factors. Four of the most dominant factors which affect cavern morphology appear to be: (1) composition and continuity of the confining units; (2) percentage of noncarbonate components in rocks of the cavern-forming interval; (3) nature and distribution of ground-water recharge to the cavern-forming interval; and (4) nature and distribution of fractures within the cavern-forming interval. Network maze patterns typically develop in the Pitkin Limestone, the formation in which most caverns form beneath the Boston Mountains Plateau. The Pitkin, a bioclastic limestone, is confined above by siltstones of the Cane Hill member of the Hale Formation and below by shales of the Fayetteville Formation. The maze pattern indicates that these caverns probably were formed by dissolution of the rock matrix by diffuse recharge moving vertically through leaky confining units. Single rooms are the dominant cavern morphology in the chert-dominated Boone Formation of the Springfield Plateau. Where the concentration of chert is greater than 50 percent, the Boone lacks structural integrity and fails to develop well-integrated conduit networks. Point recharge features in outcrop areas of the Boone Formation are not visible in most of the Springfield Plateau because the insoluble residuum masks the upper bedrock surface. Where the Boone Formation is less than 7 meters thick, surface karst features are more prevalent.

Fanning, B.J. (Univ. of Arkansas, Fayetteville, AR (United States). Dept. of Geology); Brahana, J.V. (Univ. of Arkansas , Fayetteville, AR (United States). Geological Survey)

1993-02-01T23:59:59.000Z

497

NO2 Aging and Iodine Loading of Silver-Functionalized Aerogels  

SciTech Connect (OSTI)

Off-gas treatment systems in used fuel reprocessing which use fixed-bed adsorbers are typically designed to operate for an extended period of time before replacement or regeneration of the adsorbent. During this time, the sorbent material will be exposed to the off-gas stream. Exposure could last for months, depending on the replacement cycle time. The gas stream will be at elevated temperature and will possibly contain a mixture of water vapor, NOx, nitric acid vapors, and a variety of other constituents in addition to the radionuclides of capture interest. A series of studies were undertaken to evaluate the effects of long-term exposure, or aging, on proposed iodine sorbent materials under increasingly harsh off-gas conditions. Previous studies have evaluated the effects of up to 6 months of aging under dry air and under humid air conditions on the iodine loading behavior of Ag0-functionalized aerogels. This study examines the effects of extended exposure (up to 6 months) to NO2 on the iodine loading capacity of Ag0- functionalized aerogels. Material aged for 1 and 2 months appeared to have a similar total loading capacity to fresh material. Over an aging period of 4 months, a loss of approximately 15% of the total iodine capacity was seen. The iodine capacity loss on silver-functionalized aerogels due to NO2 was smaller than the iodine capacity loss due to humid or dry air aging.

Patton, K K [ORNL; Bruffey, S H [ORNL; Walker, J F [ORNL; Jubin, R T [ORNL

2014-07-31T23:59:59.000Z

498

Testing of a naturally aged nuclear power plant inverter and battery charger  

SciTech Connect (OSTI)

A naturally aged inverter and battery charger were obtained from the Shippingport facility. This equipment was manufactured in 1974, and was installed at Shippingport in 1975 as part of a major plant modification. Testing was performed on this equipment under the auspices of the NRC's Nuclear Plant Aging Research (NPAR) Program to evaluate the type and extent of degradation due to aging, and to determine the effectiveness of condition monitoring techniques which could be used to detect aging effects. Steady state testing was conducted over the equipment's entire operating range. Step load changes were also initiated in order to monitor the electrical response. During this testing, component temperatures were monitored and circuit waveforms analyzed. Results indicated that aging had not substantially affected equipment operation. On the other hand, when compared with original acceptance test data, the monitoring techniques employed were sensitive to changes in measurable component and equipment parameters indicating the viability of detecting degradation prior to catastrophic failure. 7 refs., 34 figs., 12 tabs.

Gunther, W.E.

1988-09-01T23:59:59.000Z

499

Significance of apparent discrepanices in water ages derived from atmospheric radionuclides at Yucca Mountain, Nevada  

SciTech Connect (OSTI)

Cosmogenic {sup 36}Cl and {sup 14}C produced in the atmosphere are being used to estimate water residence times in the unsaturated zone at Yucca Mountain. Results thus far show a systematic discordance in that {sup 14}C-based ages are generally one to two orders of magnitude younger than {sup 36}Cl-based ages. This lack of concordance probably arises from one or more of the following reasons: (1) different transport mechanisms, e.g., vapor transport for {sup 14}C; (2) different magnitudes and timing of bomb-pulse signals; (3) mixing of waters from different flow paths; and (4) possibly inadequate methods for correcting for the effect of sample contamination by carbon or chlorine from sources other than the infiltrating water. Preliminary numerical simulation results using the FEHMN code suggest that spatial variation in infiltration rates can enhance lateral flow and mixing that leads to discordance in apparent ages depending on the dating technique. Examples are presented to show that disparate radiometric ages are inevitable and to be expected where mixing of waters of markedly different ages occurs.

Liu, B.; Fabryka-Martin, J.; Wolfsberg, A.; Robinson, B. [Los Alamos National Lab., NM (United States); Sharma, P. [Purdue Univ., Lafayette, IN (United States). Dept. of Physics

1995-02-23T23:59:59.000Z

500

Letter report: Population estimates by age, sex and race for 10-county study area  

SciTech Connect (OSTI)

The Hanford Environmental Does Reconstruction (HEDR) Project was established to estimate radiation doses that people could have received from nuclear operations at the Hanford Site since 1944. To identify groups that may have received doses, population estimates containing age, race, and sex detail for ten counties in Washington and Oregon for the years 1940 to 1980 were prepared by the Demographics Laboratory under a subcontract with the Pacific Northwest Laboratory (PNL). A data base of population information was developed from census reports and published and unpublished collections from the Washington State Office of Financial Management and Center for Population Research. Three estimation methods were then explored: the cohort-component model, cohort interpolation, and age-group interpolation. The estimates generated through cohort and age-group interpolation are considered adequate for initial use in the HEDR Project. Results are presented in two forms: (1) county populations by sex and single year of age and (2) county populations by sex and race for age groupings. These results are made available to the HEDR Project for further refinement into population estimates by county census divisions.

Pittenger, D.B.

1992-02-01T23:59:59.000Z