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Sample records for properties novye sverkhtyazhelye

  1. Property.

    ERIC Educational Resources Information Center

    Piele, Philip K.

    Several court cases involving acquisition, use, and disposal of property by institutions of higher education are briefly summarized in this chapter. Cases discussed touch on such topics as municipal annexation of university property; repurchase of properties temporarily allocated to faculty members; implications of zoning laws and zoning board…

  2. Property.

    ERIC Educational Resources Information Center

    Piele, Philip K.; Johnson, Margaret M.

    This chapter deals with 1981 cases involving disputes over property. Cases involving the detachment and attachment of land continue to dominate the property chapter with 11 cases reported, the same number summarized in last year's chapter. One case involving school board referenda raised the interesting question of whether or not a state could…

  3. Property.

    ERIC Educational Resources Information Center

    Bickel, Robert D.; Zeller, Trisha A.

    A number of cases related to property issues involving institutions of higher education are examined in this chapter. Cases discussed touch on such topics as funding for property and equipment acquisition; opposition to building construction or demolition; zoning issues; building construction and equipment contracts; and lease agreements. Current…

  4. Intellectual property.

    PubMed

    Brown, W M

    2000-01-01

    "Intellectual property" (IP) is a generic legal term for patents, copyrights, and trademarks, all of which provide legal rights to protect ideas, the expression of ideas, and the inventors of such ideas (1). Intellectual property has many of the characteristics of real property (houses, buildings, and so forth); intellectual property can be bought, sold, assigned, and licensed. Additionally, the owner of IP can prevent "trespass" on his property by others, though in IP this is referred to as infringement. A patent provides legal protection for a new invention, that is, an application of a new idea, discovery, or concept that is useful. Copyright provides legal protection from copying for any creative work (e.g., works of art, literature [fiction ornonfiction], music, lyrics, photographs), as well as business and scientific publications, computer software, and compilations of information. A trademark provides rights to use symbols, particular words, logos, or other markings that indicate the source of a product or service. A further method of benefitting from an invention is simply to keep it secret, rather than to disclose it; the most famous trade secret of all time is the formula for Coca-Cola, still a closely guarded secret to this day (2,3). Trade secrets have the advantage that they never expire, but special measures are required to ensure the continued secrecy, and should it be violated, there is little legal protection for the owner (2,3). PMID:21337093

  5. Thermophysical properties

    SciTech Connect

    Kayser, R.F.

    1993-01-01

    Numerous fluids have been identified as promising alternative refrigerants, but much of the information needed to predict their behavior as pure fluids and as components in mixtures does not exist. In particular, reliable thermophysical properties data and models are needed to predict the performance of the new refrigerants in heating and cooling equipment and to design and optimize equipment to be reliable and energy efficient. The objective of this project is to provide highly accurate, selected thermophysical properties data for Refrigerants 32, 123, 124, and 125, and to use these data to fit simple and complex equations of state and detailed transport property models. The new data will fill gaps in the existing data sets and resolve the problems and uncertainties that exist in and between the data sets. This report describes the progress made during the fourth quarter of this fifteen-month project, which was initiated in late January, 1992.

  6. Property Measurement

    NASA Technical Reports Server (NTRS)

    1980-01-01

    Van is used by Land Inventory Systems to measure and map property for tax assessment purposes. It is adapted from navigation system of the Lunar Rover wheeled vehicle in which moon-exploring astronauts traveled as much as 20 miles from their Lunar Module base. Astronauts had to know their precise position so that in case of emergency they could take the shortest route back. Computerized navigational system kept a highly accurate record of the directional path providing continuous position report. Distance measuring subsystem was a more accurate counterpart of automobile odometer system counts revolutions of wheels and encoders generate electrical pulses for each fractional revolution and the computer analyzed the pulses to determine the distance traveled in a given direction.

  7. Valuation of Property.

    ERIC Educational Resources Information Center

    Bodley, Joanne H.; Goodenough, Linda

    This report describes property tax revenues and assessment rates for all 50 States during 1966. The following information is summarized by State and by class of property: (1) The total valuation and the taxable valuation of property subject to local general property taxation and the percent distribution of total valuation by class of property; (2)…

  8. Steam Properties Database

    National Institute of Standards and Technology Data Gateway

    SRD 10 NIST/ASME Steam Properties Database (PC database for purchase)   Based upon the International Association for the Properties of Water and Steam (IAPWS) 1995 formulation for the thermodynamic properties of water and the most recent IAPWS formulations for transport and other properties, this updated version provides water properties over a wide range of conditions according to the accepted international standards.

  9. PHYSICOCHEMICAL PROPERTY CALCULATIONS

    EPA Science Inventory

    Computer models have been developed to estimate a wide range of physical-chemical properties from molecular structure. The SPARC modeling system approaches calculations as site specific reactions (pKa, hydrolysis, hydration) and `whole molecule' properties (vapor pressure, boilin...

  10. Property in Nonhuman Primates

    ERIC Educational Resources Information Center

    Brosnan, Sarah F.

    2011-01-01

    Property is rare in most nonhuman primates, most likely because their lifestyles are not conducive to it. Nonetheless, just because these species do not frequently maintain property does not mean that they lack the propensity to do so. Primates show respect for possession, as well as behaviors related to property, such as irrational decision…

  11. 31 CFR 570.309 - Property; property interest.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... 31 Money and Finance:Treasury 3 2011-07-01 2011-07-01 false Property; property interest. 570.309... Definitions § 570.309 Property; property interest. The terms property and property interest include, but are... nature whatsoever, and any other property, real, personal, or mixed, tangible or intangible, or...

  12. 31 CFR 546.308 - Property; property interest.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 31 Money and Finance: Treasury 3 2010-07-01 2010-07-01 false Property; property interest. 546.308... Definitions § 546.308 Property; property interest. The terms property and property interest include, but are... nature whatsoever, and any other property, real, personal, or mixed, tangible or intangible, or...

  13. 31 CFR 547.308 - Property; property interest.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... 31 Money and Finance:Treasury 3 2013-07-01 2013-07-01 false Property; property interest. 547.308... REGULATIONS General Definitions § 547.308 Property; property interest. The terms property and property..., contracts of any nature whatsoever, and any other property, real, personal, or mixed, tangible or...

  14. 31 CFR 541.308 - Property; property interest.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... 31 Money and Finance:Treasury 3 2013-07-01 2013-07-01 false Property; property interest. 541.308... Definitions § 541.308 Property; property interest. The terms property and property interest include, but are... nature whatsoever, and any other property, real, personal, or mixed, tangible or intangible, or...

  15. 31 CFR 588.307 - Property; property interest.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... 31 Money and Finance:Treasury 3 2011-07-01 2011-07-01 false Property; property interest. 588.307... General Definitions § 588.307 Property; property interest. The terms property and property interest..., contracts of any nature whatsoever, and any other property, real, personal, or mixed, tangible or...

  16. 31 CFR 537.315 - Property; property interest.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... 31 Money and Finance:Treasury 3 2013-07-01 2013-07-01 false Property; property interest. 537.315... Definitions § 537.315 Property; property interest. The terms property and property interest include, but are... nature whatsoever, and any other property, real, personal, or mixed, tangible or intangible, or...

  17. 31 CFR 515.311 - Property; property interests.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 31 Money and Finance: Treasury 3 2010-07-01 2010-07-01 false Property; property interests. 515.311... Definitions § 515.311 Property; property interests. (a) Except as defined in § 515.203(f) for the purposes of that section the terms property and property interest or property interests shall include, but not...

  18. 31 CFR 537.315 - Property; property interest.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 31 Money and Finance: Treasury 3 2010-07-01 2010-07-01 false Property; property interest. 537.315... Definitions § 537.315 Property; property interest. The terms property and property interest include, but are... nature whatsoever, and any other property, real, personal, or mixed, tangible or intangible, or...

  19. 31 CFR 515.311 - Property; property interests.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... 31 Money and Finance:Treasury 3 2013-07-01 2013-07-01 false Property; property interests. 515.311... Definitions § 515.311 Property; property interests. (a) Except as defined in § 515.203(f) for the purposes of that section the terms property and property interest or property interests shall include, but not...

  20. 31 CFR 549.308 - Property; property interest.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... 31 Money and Finance:Treasury 3 2011-07-01 2011-07-01 false Property; property interest. 549.308... Definitions § 549.308 Property; property interest. The terms property and property interest include, but are... nature whatsoever, and any other property, real, personal, or mixed, tangible or intangible, or...

  1. 31 CFR 551.307 - Property; property interest.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... 31 Money and Finance:Treasury 3 2011-07-01 2011-07-01 false Property; property interest. 551.307... Definitions § 551.307 Property; property interest. The terms property and property interest include, but are... nature whatsoever, and any other property, real, personal, or mixed, tangible or intangible, or...

  2. 31 CFR 546.308 - Property; property interest.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... 31 Money and Finance:Treasury 3 2013-07-01 2013-07-01 false Property; property interest. 546.308... Definitions § 546.308 Property; property interest. The terms property and property interest include, but are... nature whatsoever, and any other property, real, personal, or mixed, tangible or intangible, or...

  3. 31 CFR 515.311 - Property; property interests.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... 31 Money and Finance:Treasury 3 2011-07-01 2011-07-01 false Property; property interests. 515.311... Definitions § 515.311 Property; property interests. (a) Except as defined in § 515.203(f) for the purposes of that section the terms property and property interest or property interests shall include, but not...

  4. 31 CFR 595.310 - Property; property interest.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... 31 Money and Finance:Treasury 3 2013-07-01 2013-07-01 false Property; property interest. 595.310... Definitions § 595.310 Property; property interest. The terms property and property interest include, but are... nature whatsoever, and any other property, real, personal, or mixed, tangible or intangible, or...

  5. 31 CFR 551.307 - Property; property interest.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... 31 Money and Finance:Treasury 3 2013-07-01 2013-07-01 false Property; property interest. 551.307... Definitions § 551.307 Property; property interest. The terms property and property interest include, but are... nature whatsoever, and any other property, real, personal, or mixed, tangible or intangible, or...

  6. 31 CFR 543.308 - Property; property interest.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 31 Money and Finance: Treasury 3 2010-07-01 2010-07-01 false Property; property interest. 543.308... Definitions § 543.308 Property; property interest. The terms property and property interest include, but are... nature whatsoever, and any other property, real, personal, or mixed, tangible or intangible, or...

  7. 31 CFR 576.312 - Property; property interest.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... 31 Money and Finance:Treasury 3 2013-07-01 2013-07-01 false Property; property interest. 576.312... REGULATIONS General Definitions § 576.312 Property; property interest. The terms property and property..., contracts of any nature whatsoever, and any other property, real, personal, or mixed, tangible or...

  8. 31 CFR 570.309 - Property; property interest.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... 31 Money and Finance:Treasury 3 2013-07-01 2013-07-01 false Property; property interest. 570.309... Definitions § 570.309 Property; property interest. The terms property and property interest include, but are... nature whatsoever, and any other property, real, personal, or mixed, tangible or intangible, or...

  9. 31 CFR 588.308 - Property; property interest.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 31 Money and Finance: Treasury 3 2010-07-01 2010-07-01 false Property; property interest. 588.308... General Definitions § 588.308 Property; property interest. The terms property and property interest..., contracts of any nature whatsoever, and any other property, real, personal, or mixed, tangible or...

  10. 31 CFR 542.308 - Property; property interest.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... 31 Money and Finance:Treasury 3 2011-07-01 2011-07-01 false Property; property interest. 542.308... Definitions § 542.308 Property; property interest. The terms property and property interest include, but are... nature whatsoever, and any other property, real, personal, or mixed, tangible or intangible, or...

  11. 31 CFR 595.310 - Property; property interest.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... 31 Money and Finance:Treasury 3 2011-07-01 2011-07-01 false Property; property interest. 595.310... Definitions § 595.310 Property; property interest. The terms property and property interest include, but are... nature whatsoever, and any other property, real, personal, or mixed, tangible or intangible, or...

  12. 31 CFR 537.315 - Property; property interest.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... 31 Money and Finance:Treasury 3 2011-07-01 2011-07-01 false Property; property interest. 537.315... Definitions § 537.315 Property; property interest. The terms property and property interest include, but are... nature whatsoever, and any other property, real, personal, or mixed, tangible or intangible, or...

  13. 31 CFR 542.308 - Property; property interest.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... 31 Money and Finance:Treasury 3 2013-07-01 2013-07-01 false Property; property interest. 542.308... Definitions § 542.308 Property; property interest. The terms property and property interest include, but are... nature whatsoever, and any other property, real, personal, or mixed, tangible or intangible, or...

  14. 31 CFR 594.309 - Property; property interest.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... 31 Money and Finance:Treasury 3 2011-07-01 2011-07-01 false Property; property interest. 594.309... Definitions § 594.309 Property; property interest. The terms property and property interest include, but are... nature whatsoever, and any other property, real, personal, or mixed, tangible or intangible, or...

  15. 31 CFR 560.325 - Property; property interest.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... 31 Money and Finance:Treasury 3 2013-07-01 2013-07-01 false Property; property interest. 560.325... General Definitions § 560.325 Property; property interest. The terms property and property interest..., contracts of any nature whatsoever, and any other property, real, personal, or mixed, tangible or...

  16. 31 CFR 535.311 - Property; property interests.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... 31 Money and Finance:Treasury 3 2013-07-01 2013-07-01 false Property; property interests. 535.311... Definitions § 535.311 Property; property interests. Except as defined in § 535.203(f) for the purposes of that section, the terms property and property interest or property interests shall include, but not by way...

  17. 31 CFR 541.308 - Property; property interest.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... 31 Money and Finance:Treasury 3 2011-07-01 2011-07-01 false Property; property interest. 541.308... Definitions § 541.308 Property; property interest. The terms property and property interest include, but are... nature whatsoever, and any other property, real, personal, or mixed, tangible or intangible, or...

  18. 31 CFR 585.304 - Property; property interest.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 31 Money and Finance: Treasury 3 2010-07-01 2010-07-01 false Property; property interest. 585.304... General Definitions § 585.304 Property; property interest. The terms property and property interest..., contracts of any nature whatsoever, and any other property, real, personal, or mixed, tangible or...

  19. 31 CFR 500.311 - Property; property interests.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 31 Money and Finance: Treasury 3 2010-07-01 2010-07-01 false Property; property interests. 500.311... Definitions § 500.311 Property; property interests. Except as defined in § 500.203(f) for the purposes of that section the terms property and property interest or property interests shall include, but not by way...

  20. 31 CFR 594.309 - Property; property interest.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 31 Money and Finance: Treasury 3 2010-07-01 2010-07-01 false Property; property interest. 594.309... Definitions § 594.309 Property; property interest. The terms property and property interest include, but are... nature whatsoever, and any other property, real, personal, or mixed, tangible or intangible, or...

  1. 31 CFR 546.308 - Property; property interest.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... 31 Money and Finance:Treasury 3 2011-07-01 2011-07-01 false Property; property interest. 546.308... Definitions § 546.308 Property; property interest. The terms property and property interest include, but are... nature whatsoever, and any other property, real, personal, or mixed, tangible or intangible, or...

  2. 31 CFR 541.308 - Property; property interest.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 31 Money and Finance: Treasury 3 2010-07-01 2010-07-01 false Property; property interest. 541.308... Definitions § 541.308 Property; property interest. The terms property and property interest include, but are... nature whatsoever, and any other property, real, personal, or mixed, tangible or intangible, or...

  3. 31 CFR 552.307 - Property; property interest.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... 31 Money and Finance:Treasury 3 2013-07-01 2013-07-01 false Property; property interest. 552.307... § 552.307 Property; property interest. The terms property and property interest include, but are not... nature whatsoever, and any other property, real, personal, or mixed, tangible or intangible, or...

  4. 31 CFR 538.310 - Property; property interest.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... 31 Money and Finance:Treasury 3 2011-07-01 2011-07-01 false Property; property interest. 538.310... Definitions § 538.310 Property; property interest. The terms property and property interest include, but are... nature whatsoever, and any other property, real, personal, or mixed, tangible or intangible, or...

  5. 31 CFR 598.312 - Property; property interest.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... 31 Money and Finance:Treasury 3 2011-07-01 2011-07-01 false Property; property interest. 598.312... General Definitions § 598.312 Property; property interest. The terms property and property interest..., contracts of any nature whatsoever, and any other property, real, personal, or mixed, tangible or...

  6. 31 CFR 538.310 - Property; property interest.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... 31 Money and Finance:Treasury 3 2013-07-01 2013-07-01 false Property; property interest. 538.310... Definitions § 538.310 Property; property interest. The terms property and property interest include, but are... nature whatsoever, and any other property, real, personal, or mixed, tangible or intangible, or...

  7. 31 CFR 547.308 - Property; property interest.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... 31 Money and Finance:Treasury 3 2011-07-01 2011-07-01 false Property; property interest. 547.308... REGULATIONS General Definitions § 547.308 Property; property interest. The terms property and property..., contracts of any nature whatsoever, and any other property, real, personal, or mixed, tangible or...

  8. 31 CFR 598.312 - Property; property interest.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 31 Money and Finance: Treasury 3 2010-07-01 2010-07-01 false Property; property interest. 598.312... General Definitions § 598.312 Property; property interest. The terms property and property interest..., contracts of any nature whatsoever, and any other property, real, personal, or mixed, tangible or...

  9. 31 CFR 598.312 - Property; property interest.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... 31 Money and Finance:Treasury 3 2013-07-01 2013-07-01 false Property; property interest. 598.312... General Definitions § 598.312 Property; property interest. The terms property and property interest..., contracts of any nature whatsoever, and any other property, real, personal, or mixed, tangible or...

  10. 31 CFR 542.308 - Property; property interest.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 31 Money and Finance: Treasury 3 2010-07-01 2010-07-01 false Property; property interest. 542.308... Definitions § 542.308 Property; property interest. The terms property and property interest include, but are... nature whatsoever, and any other property, real, personal, or mixed, tangible or intangible, or...

  11. 31 CFR 594.309 - Property; property interest.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... 31 Money and Finance:Treasury 3 2013-07-01 2013-07-01 false Property; property interest. 594.309... Definitions § 594.309 Property; property interest. The terms property and property interest include, but are... nature whatsoever, and any other property, real, personal, or mixed, tangible or intangible, or...

  12. 31 CFR 595.310 - Property; property interest.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 31 Money and Finance: Treasury 3 2010-07-01 2010-07-01 false Property; property interest. 595.310... Definitions § 595.310 Property; property interest. The terms property and property interest include, but are... nature whatsoever, and any other property, real, personal, or mixed, tangible or intangible, or...

  13. 31 CFR 575.315 - Property; property interest.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 31 Money and Finance: Treasury 3 2010-07-01 2010-07-01 false Property; property interest. 575.315... § 575.315 Property; property interest. The terms property and property interest include, but are not... whatsoever, and any other property, real, personal, or mixed, tangible or intangible, or interest...

  14. 31 CFR 590.309 - Property; property interest.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... 31 Money and Finance:Treasury 3 2013-07-01 2013-07-01 false Property; property interest. 590.309... REGULATIONS General Definitions § 590.309 Property; property interest. The terms property and property..., contracts of any nature whatsoever, and any other property, real, personal, or mixed, tangible or...

  15. 31 CFR 543.308 - Property; property interest.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... 31 Money and Finance:Treasury 3 2013-07-01 2013-07-01 false Property; property interest. 543.308... Definitions § 543.308 Property; property interest. The terms property and property interest include, but are... nature whatsoever, and any other property, real, personal, or mixed, tangible or intangible, or...

  16. 31 CFR 535.311 - Property; property interests.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 31 Money and Finance: Treasury 3 2010-07-01 2010-07-01 false Property; property interests. 535.311... Definitions § 535.311 Property; property interests. Except as defined in § 535.203(f) for the purposes of that section, the terms property and property interest or property interests shall include, but not by way...

  17. 31 CFR 549.308 - Property; property interest.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... 31 Money and Finance:Treasury 3 2013-07-01 2013-07-01 false Property; property interest. 549.308... Definitions § 549.308 Property; property interest. The terms property and property interest include, but are... nature whatsoever, and any other property, real, personal, or mixed, tangible or intangible, or...

  18. 31 CFR 588.307 - Property; property interest.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... 31 Money and Finance:Treasury 3 2013-07-01 2013-07-01 false Property; property interest. 588.307... General Definitions § 588.307 Property; property interest. The terms property and property interest..., contracts of any nature whatsoever, and any other property, real, personal, or mixed, tangible or...

  19. 31 CFR 535.311 - Property; property interests.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... 31 Money and Finance:Treasury 3 2011-07-01 2011-07-01 false Property; property interests. 535.311... Definitions § 535.311 Property; property interests. Except as defined in § 535.203(f) for the purposes of that section, the terms property and property interest or property interests shall include, but not by way...

  20. 31 CFR 538.310 - Property; property interest.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 31 Money and Finance: Treasury 3 2010-07-01 2010-07-01 false Property; property interest. 538.310... Definitions § 538.310 Property; property interest. The terms property and property interest include, but are... nature whatsoever, and any other property, real, personal, or mixed, tangible or intangible, or...

  1. 31 CFR 543.308 - Property; property interest.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... 31 Money and Finance:Treasury 3 2011-07-01 2011-07-01 false Property; property interest. 543.308... Definitions § 543.308 Property; property interest. The terms property and property interest include, but are... nature whatsoever, and any other property, real, personal, or mixed, tangible or intangible, or...

  2. 31 CFR 547.308 - Property; property interest.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 31 Money and Finance: Treasury 3 2010-07-01 2010-07-01 false Property; property interest. 547.308... REGULATIONS General Definitions § 547.308 Property; property interest. The terms property and property..., contracts of any nature whatsoever, and any other property, real, personal, or mixed, tangible or...

  3. 31 CFR 576.312 - Property; property interest.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... 31 Money and Finance:Treasury 3 2011-07-01 2011-07-01 false Property; property interest. 576.312... REGULATIONS General Definitions § 576.312 Property; property interest. The terms property and property..., contracts of any nature whatsoever, and any other property, real, personal, or mixed, tangible or...

  4. 31 CFR 593.308 - Property; property interest.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... 31 Money and Finance:Treasury 3 2011-07-01 2011-07-01 false Property; property interest. 593.308... SANCTIONS REGULATIONS General Definitions § 593.308 Property; property interest. The terms property and property interest include, but are not limited to, money, checks, drafts, bullion, bank deposits,...

  5. 31 CFR 593.308 - Property; property interest.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 31 Money and Finance: Treasury 3 2010-07-01 2010-07-01 false Property; property interest. 593.308... SANCTIONS REGULATIONS General Definitions § 593.308 Property; property interest. The terms property and property interest include, but are not limited to, money, checks, drafts, bullion, bank deposits,...

  6. 31 CFR 586.314 - Property; property interest.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 31 Money and Finance: Treasury 3 2010-07-01 2010-07-01 false Property; property interest. 586.314... & MONTENEGRO) KOSOVO SANCTIONS REGULATIONS General Definitions § 586.314 Property; property interest. The terms property and property interest include, but are not limited to, money, checks, drafts, bullion,...

  7. 31 CFR 593.308 - Property; property interest.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... 31 Money and Finance:Treasury 3 2013-07-01 2013-07-01 false Property; property interest. 593.308... SANCTIONS REGULATIONS General Definitions § 593.308 Property; property interest. The terms property and property interest include, but are not limited to, money, checks, drafts, bullion, bank deposits,...

  8. 31 CFR 544.308 - Property; property interest.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... 31 Money and Finance:Treasury 3 2011-07-01 2011-07-01 false Property; property interest. 544.308... SANCTIONS REGULATIONS General Definitions § 544.308 Property; property interest. The terms property and property interest include, but are not limited to, money, checks, drafts, bullion, bank deposits,...

  9. 31 CFR 587.308 - Property; property interest.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 31 Money and Finance: Treasury 3 2010-07-01 2010-07-01 false Property; property interest. 587.308... MONTENEGRO) MILOSEVIC SANCTIONS REGULATIONS General Definitions § 587.308 Property; property interest. The terms property and property interest include, but are not limited to, money, checks, drafts,...

  10. 31 CFR 540.311 - Property; property interest.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 31 Money and Finance: Treasury 3 2010-07-01 2010-07-01 false Property; property interest. 540.311... CONTROL REGULATIONS General Definitions § 540.311 Property; property interest. The terms property and property interest include, but are not limited to, money, checks, drafts, bullion, bank deposits,...

  11. 31 CFR 540.311 - Property; property interest.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... 31 Money and Finance:Treasury 3 2011-07-01 2011-07-01 false Property; property interest. 540.311... CONTROL REGULATIONS General Definitions § 540.311 Property; property interest. The terms property and property interest include, but are not limited to, money, checks, drafts, bullion, bank deposits,...

  12. 31 CFR 544.308 - Property; property interest.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 31 Money and Finance: Treasury 3 2010-07-01 2010-07-01 false Property; property interest. 544.308... SANCTIONS REGULATIONS General Definitions § 544.308 Property; property interest. The terms property and property interest include, but are not limited to, money, checks, drafts, bullion, bank deposits,...

  13. 31 CFR 544.308 - Property; property interest.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... 31 Money and Finance:Treasury 3 2013-07-01 2013-07-01 false Property; property interest. 544.308... SANCTIONS REGULATIONS General Definitions § 544.308 Property; property interest. The terms property and property interest include, but are not limited to, money, checks, drafts, bullion, bank deposits,...

  14. 31 CFR 540.311 - Property; property interest.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... 31 Money and Finance:Treasury 3 2013-07-01 2013-07-01 false Property; property interest. 540.311... CONTROL REGULATIONS General Definitions § 540.311 Property; property interest. The terms property and property interest include, but are not limited to, money, checks, drafts, bullion, bank deposits,...

  15. Representing properties locally.

    PubMed

    Solomon, K O; Barsalou, L W

    2001-09-01

    Theories of knowledge such as feature lists, semantic networks, and localist neural nets typically use a single global symbol to represent a property that occurs in multiple concepts. Thus, a global symbol represents mane across HORSE, PONY, and LION. Alternatively, perceptual theories of knowledge, as well as distributed representational systems, assume that properties take different local forms in different concepts. Thus, different local forms of mane exist for HORSE, PONY, and LION, each capturing the specific form that mane takes in its respective concept. Three experiments used the property verification task to assess whether properties are represented globally or locally (e.g., Does a PONY have mane?). If a single global form represents a property, then verifying it in any concept should increase its accessibility and speed its verification later in any other concept. Verifying mane for PONY should benefit as much from having verified mane for LION earlier as from verifying mane for HORSE. If properties are represented locally, however, verifying a property should only benefit from verifying a similar form earlier. Verifying mane for PONY should only benefit from verifying mane for HORSE, not from verifying mane for LION. Findings from three experiments strongly supported local property representation and ruled out the interpretation that object similarity was responsible (e.g., the greater overall similarity between HORSE and PONY than between LION and PONY). The findings further suggest that property representation and verification are complicated phenomena, grounded in sensory-motor simulations.

  16. Protection of Intellectual Property.

    ERIC Educational Resources Information Center

    Hoffman, Gary M.; McGrath, William T.

    1990-01-01

    The first of two articles discusses the extent to which piracy of intellectual property hurts the U.S. economy, the role of developing nations in piracy, and who benefits from the protection of intellectual property. The second explores the implications of a Supreme Court ruling on copyrighting of computer programs created by independent…

  17. Review of particle properties

    SciTech Connect

    Wohl; Cahn, R.N.; Rittenberg, A.; Trippe, T.G.; Yost, G.P.; Porter, F.; Hernandez, J.J.; Montanet, L.; Hendrick, R.E.; Crawford, R.L.

    1984-04-01

    This review of the properties of leptons, mesons, and baryons is an updating of the Review of Particle Properties, Particle Data Group (Phys. Lett. 111B (1982)). Data are evaluated, listed, averaged, and summarized in tables. Numerous tables, figures, and formulae of interest to particle physicists are also included. A data booklet is available.

  18. Electronic properties of nanohorns

    NASA Astrophysics Data System (ADS)

    Garaj, Slaven; Gaál, Richard; Bonard, J.-M.; Thien-Nga, L.; Forró, L.; Takahashi, K.; Kokai, F.; Yudasaka, M.; Iijima, S.

    2001-11-01

    Electronic properties of nanohorns were investigated by electron spin resonance, resistivity and thermo-electric power measurements. Electron transport and spin relaxation is governed by hopping between "dahlia"-like aggregates of conducting nanohorn structures. Upon doping, conduction electron part of paramagnetic susceptibility increases significantly. Field emission properties of nanohorns rank them among the best field-emitters currently available.

  19. Are Effective Properties Effective?

    SciTech Connect

    Han, Ru; Ingber, Marc S.; Hsiao, S.-C.

    2008-02-15

    The effective moduli (effective Young's modulus, effective Poisson's ratio, effective shear modulus, and effective bulk modulus) of dispersed-phase-reinforced composite materials are determined at the mesoscopic level using three-dimensional parallel boundary element simulations. By comparing the mesoscopic BEM results and the macroscopic results based on effective properties, limitations in the effective property approach have been examined.

  20. Organs as inheritable property?

    PubMed

    Voo, Teck Chuan; Holm, Soren

    2014-01-01

    It has been argued that organs should be treated as individual tradable property like other material possessions and assets, on the basis that this would promote individual freedom and increase efficiency in addressing the shortage of organs for transplantation. If organs are to be treated as property, should they be inheritable? This paper seeks to contribute to the idea of organs as inheritable property by providing a defence of a default of the family of a dead person as inheritors of transplantable organs. In the course of discussion, various succession rules for organs and their justifications will be suggested. We then consider two objections to organs as inheritable property. Our intention here is to provoke further thought on whether ownership of one's body parts should be assimilated to property ownership.

  1. The Devron property

    NASA Astrophysics Data System (ADS)

    Glick, Max

    2015-01-01

    We introduce a criterion called the Devron property that a discrete dynamical system can possess. The Devron property is said to occur when a class of highly singular inputs of a mapping F are carried by some iterate of F-1 to a class of highly singular inputs of F-1. The inspiration for this definition is the discovery by R. Schwartz that the pentagram map exhibits this kind of behavior. We investigate occurrences of the Devron property in a number of different dynamical systems.

  2. Grain optical properties

    NASA Technical Reports Server (NTRS)

    Hanner, Martha

    1988-01-01

    The optical properties of small grains provide the link between the infrared observations presented in Chapter 1 and the dust composition described in Chapter 3. In this session, the optical properties were discussed from the viewpoint of modeling the emission from the dust coma and the scattering in order to draw inference about the dust size distribution and composition. The optical properties are applied to the analysis of the infrared data in several ways, and these different uses should be kept in mind when judging the validity of the methods for applying optical constants to real grains.

  3. Building Materials Property Table

    SciTech Connect

    2010-04-16

    This information sheet describes a table of some of the key technical properties of many of the most common building materials taken from ASHRAE Fundamentals - 2001, Moisture Control in Buildings, CMHC, NRC/IRC, IEA Annex 24, and manufacturer data.

  4. Mechanical Properties of Polymers.

    ERIC Educational Resources Information Center

    Aklonis, J. J.

    1981-01-01

    Mechanical properties (stress-strain relationships) of polymers are reviewed, taking into account both time and temperature factors. Topics include modulus-temperature behavior of polymers, time dependence, time-temperature correspondence, and mechanical models. (JN)

  5. The property 'instinct'.

    PubMed Central

    Stake, Jeffrey Evans

    2004-01-01

    Evolutionary theory and empirical studies suggest that many animals, including humans, have a genetic predisposition to acquire and retain property. This is hardly surprising because survival is closely bound up with the acquisition of things: food, shelter, tools and territory. But the root of these general urges may also run to quite specific and detailed rules about property acquisition, retention and disposition. The great variation in property-related behaviours across species may mask some important commonalities grounded in adaptive utility. Experiments and observations in the field and laboratory suggest that the legal rules of temporal priority and possession are grounded in what were evolutionarily stable strategies in the ancestral environment. Moreover, the preferences that humans exhibit in disposing of their property on their deaths, both by dispositions made in wills and by the laws of intestacy, tend to advance reproductive success as a result of inclusive fitness pay-offs. PMID:15590617

  6. Properties of leptons

    SciTech Connect

    Perl, M.L.

    1989-12-01

    The properties of the electron, muon, tau, and their neutrinos are reviewed. Three discrepancies in our understanding of those properties are discussed: the lifetime of orthopositronium, the mass spectra of e{sup +}e{sup -} pairs produced in heavy ion collisions, and the 1-charged particle modes problem in tau decays. The review concludes with a discussion of what we need to learn about the tau and the consequent need for a tau-charm factory. 68 refs., 7 figs., 8 tabs.

  7. Higgs Boson Properties

    NASA Astrophysics Data System (ADS)

    David, André Dührssen, Michael

    2016-10-01

    This chapter presents an overview of the measured properties of the Higgs boson discovered in 2012 by the ATLAS and CMS collaborations at the CERN LHC. Searches for deviations from the properties predicted by the standard theory are also summarised. The present status corresponds to the combined analysis of the full Run 1 data sets of collisions collected at centre-of-mass energies of 7 and 8 TeV.

  8. Fluid property measurements study

    NASA Technical Reports Server (NTRS)

    Devaney, W. E.

    1976-01-01

    Fluid properties of refrigerant-21 were investigated at temperatures from the freezing point to 423 Kelvin and at pressures to 1.38 x 10 to the 8th power N/sq m (20,000 psia). The fluid properties included were: density, vapor pressure, viscosity, specific heat, thermal conductivity, thermal expansion coefficient, freezing point and bulk modulus. Tables of smooth values are reported.

  9. Nonlinear Refractive Properties

    NASA Technical Reports Server (NTRS)

    Vikram, Chandra S.; Witherow, William K.

    2001-01-01

    Using nonlinear refractive properties of a salt-water solution at two wavelengths, numerical analysis has been performed to extract temperature and concentration from interferometric fringe data. The theoretical study, using a commercially available equation solving software, starts with critical fringe counting needs and the role of nonlinear refractive properties in such measurements. Finally, methodology of the analysis, codes, fringe counting accuracy needs, etc. is described in detail.

  10. Surface electrical properties experiment

    USGS Publications Warehouse

    Simmons, Gene; Strangway, David; Annan, Peter; Baker, Richard G.; Bannister, Lawrence; Brown, Raymon; Cooper, William; Cubley, Dean; deBettencourt, Joseph; England, Anthony W.; Groener, John; Kong, Jin-Au; LaTorraca, Gerald; Meyer, James; Nanda, Ved; Redman, David; Rossiter, James; Tsang, Leung; Urner, Joseph; Watts, Raymond

    1973-01-01

    The surface electrical properties (SEP) experiment was used to explore the subsurface material of the Apollo 17 landing site by means of electromagnetic radiation. The experiment was designed to detect electrical layering, discrete scattering bodies, and the possible presence of water. From the analysis of the data, it was expected that values of the electrical properties (dielectric constant and loss tangent) of lunar material in situ would be obtained.

  11. Property Differencing for Incremental Checking

    NASA Technical Reports Server (NTRS)

    Yang, Guowei; Khurshid, Sarfraz; Person, Suzette; Rungta, Neha

    2014-01-01

    This paper introduces iProperty, a novel approach that facilitates incremental checking of programs based on a property di erencing technique. Speci cally, iProperty aims to reduce the cost of checking properties as they are initially developed and as they co-evolve with the program. The key novelty of iProperty is to compute the di erences between the new and old versions of expected properties to reduce the number and size of the properties that need to be checked during the initial development of the properties. Furthermore, property di erencing is used in synergy with program behavior di erencing techniques to optimize common regression scenarios, such as detecting regression errors or checking feature additions for conformance to new expected properties. Experimental results in the context of symbolic execution of Java programs annotated with properties written as assertions show the e ectiveness of iProperty in utilizing change information to enable more ecient checking.

  12. Optical properties of flyash

    SciTech Connect

    Self, S.A.

    1990-04-01

    In this research program, we have adopted the approach that by measuring fundamental properties (i.e, the complex refractive index, m) of the fly ash which participates in the radiation transfer, we can use well established theoretical principles (Mie theory) to compute the radiative properties of dispersions of fly ash as found in coal combustors. With this approach one can, understand the underlying principles that affect the radiative properties of an ash dispersion and more confidently predict how variations in the characteristics of the ash dispersion cause variations in its radiative properties. An important criterion in this approach is that the fly ash particles be spherical, homogeneous, and isotropic. Fortunately, fly ash particles are formed at high temperatures at which most of them are molten, leading primarily to spherical particles. Furthermore, one should expect that molten particles will be reasonably homogeneous and isotropic. On cooling, most fly ash particles form glassy spheres which are homogeneous and isotropic. Some ash particles form hollow shells (cenospheres) while others form as particles with bubbles'' or voids, but most fly ash particles are well approximated as homogeneous isotropic spheres. In the following sections we review some of the underlying principles that affect the radiative properties of fly ash dispersions and report on progress that has been made during the past quarter.

  13. Intellectual property and control.

    PubMed

    Goodman, K

    1993-09-01

    The issue of intellectual property is viewed differently by different groups involved in biomedical research: researchers; academic institutions; corporate, government, and philanthropic sponsors; and society. The members of these groups do not always agree even among themselves; within government and academe, for instance, there are different and competing schools of thought. Many in academe believe that intellectual property rights are limited and that the openness and intellectual interdependence that marked and contributed to the rise of the research university are anathema to notions of intellectual ownership and control. In discussing this view, the author considers the issues of control that are implicit in concepts of ownership and property, concluding that any emphasis on profit and control constitutes a stance at variance with the outlook that has driven much of medicine's success throughout history. In supporting intellectual property claims, some suggest (often by implication) that medical advances would be less frequent or significant if exclusive control and access to profit were eliminated or reduced. The history of research, on the contrary, shows that university research for centuries yielded major results without the incentive of patents and still does. Another major concern is the open flow of information, which could be restricted by intellectual property controls. Sharing information is not merely a good deed, a commendable practice--such sharing tends to produce overwhelmingly good consequences for all those who share and for the society that is ultimately paying for the research enterprise.

  14. Viscoelastic Properties of Networks

    NASA Astrophysics Data System (ADS)

    Gündüz, Güngör

    A network was characterized by its viscoelastic properties. The viscoelastic property indicates the deformations or changes in the shape and in the internal structure during the evolution of a network. The change in the direction of motion was taken as elastic deformation and the change in the vertical direction as viscous deformation. These deformations were related to the change of geometry of internal structure and of shape. Thus it was possible to characterize a network by its storage and loss moduli. The change of the structure of a network during its evolution changes also its entropy. However entropy depends on the number of microstates of an already existing framework. As examples, two different systems (i) New York Stock Exchange and (ii) a melody were studied for their viscoelastic properties. The change of viscous property was compared with the change of different types of entropies such as configurational entropy, crossing entropy, and topological entropy. This last entropy was introduced and explained in the text. It was found out that there is no direct correspondence between the increase of entropy and the increase of viscous property of a network although they sometimes correlate with each other.

  15. Chitosan functional properties.

    PubMed

    Shepherd, R; Reader, S; Falshaw, A

    1997-06-01

    Chitosan is a partially deacetylated polymer of N-acetyl glucosamine. It is essentially a natural, water-soluble, derivative of cellulose with unique properties. Chitosan is usually prepared from chitin (2 acetamido-2-deoxy beta-1,4-D-glucan) and chitin has been found in a wide range of natural sources (crustaceans, fungi, insects, annelids, molluscs, coelenterata etc.) However chitosan is only manufactured from crustaceans (crab and crayfish) primarily because a large amount of the crustacean exoskeleton is available as a by product of food processing. Squid pens (a waste byproduct of New Zealand squid processing) are a novel, renewable source of chitin and chitosan. Squid pens are currently regarded as waste and so the raw material is relatively cheap. This study was intended to assess the functional properties of squid pen chitosan. Chitosan was extracted from squid pens and assessed for composition, rheology, flocculation, film formation and antimicrobial properties. Crustacean chitosans were also assessed for comparison. Squid chitosan was colourless, had a low ash content and had significantly improved thickening and suspending properties. The flocculation capacity of squid chitosan was low in comparison with the crustacean sourced chitosans. However it should be possible to increase the flocculation capacity of squid pen chitosan by decreasing the degree of acetylation. Films made with squid chitosan were more elastic than crustacean chitosan with improved functional properties. This high quality chitosan could prove particularly suitable for medical/analytical applications.

  16. Optical adhesive property study

    SciTech Connect

    Sundvold, P.D.

    1996-01-01

    Tests were performed to characterize the mechanical and thermal properties of selected optical adhesives to identify the most likely candidate which could survive the operating environment of the Direct Optical Initiation (DOI) program. The DOI system consists of a high power laser and an optical module used to split the beam into a number of channels to initiate the system. The DOI requirements are for a high shock environment which current military optical systems do not operate. Five candidate adhesives were selected and evaluated using standardized test methods to determine the adhesives` physical properties. EC2216, manufactured by 3M, was selected as the baseline candidate adhesive based on the test results of the physical properties.

  17. Thermal Properties Measurement Report

    SciTech Connect

    Carmack, Jon; Braase, Lori; Papesch, Cynthia; Hurley, David; Tonks, Michael; Zhang, Yongfeng; Gofryk, Krzysztof; Harp, Jason; Fielding, Randy; Knight, Collin; Meyer, Mitch

    2015-08-01

    The Thermal Properties Measurement Report summarizes the research, development, installation, and initial use of significant experimental thermal property characterization capabilities at the INL in FY 2015. These new capabilities were used to characterize a U3Si2 (candidate Accident Tolerant) fuel sample fabricated at the INL. The ability to perform measurements at various length scales is important and provides additional data that is not currently in the literature. However, the real value of the data will be in accomplishing a phenomenological understanding of the thermal conductivity in fuels and the ties to predictive modeling. Thus, the MARMOT advanced modeling and simulation capability was utilized to illustrate how the microstructural data can be modeled and compared with bulk characterization data. A scientific method was established for thermal property measurement capability on irradiated nuclear fuel samples, which will be installed in the Irradiated Material Characterization Laboratory (IMCL).

  18. Calibrated Properties Model

    SciTech Connect

    C.F. Ahlers, H.H. Liu

    2001-12-18

    The purpose of this Analysis/Model Report (AMR) is to document the Calibrated Properties Model that provides calibrated parameter sets for unsaturated zone (UZ) flow and transport process models for the Yucca Mountain Site Characterization Project (YMP). This work was performed in accordance with the AMR Development Plan for U0035 Calibrated Properties Model REV00 (CRWMS M&O 1999c). These calibrated property sets include matrix and fracture parameters for the UZ Flow and Transport Model (UZ Model), drift seepage models, drift-scale and mountain-scale coupled-processes models, and Total System Performance Assessment (TSPA) models as well as Performance Assessment (PA) and other participating national laboratories and government agencies. These process models provide the necessary framework to test conceptual hypotheses of flow and transport at different scales and predict flow and transport behavior under a variety of climatic and thermal-loading conditions.

  19. Calibrated Properties Model

    SciTech Connect

    C. Ahlers; H. Liu

    2000-03-12

    The purpose of this Analysis/Model Report (AMR) is to document the Calibrated Properties Model that provides calibrated parameter sets for unsaturated zone (UZ) flow and transport process models for the Yucca Mountain Site Characterization Project (YMP). This work was performed in accordance with the ''AMR Development Plan for U0035 Calibrated Properties Model REV00. These calibrated property sets include matrix and fracture parameters for the UZ Flow and Transport Model (UZ Model), drift seepage models, drift-scale and mountain-scale coupled-processes models, and Total System Performance Assessment (TSPA) models as well as Performance Assessment (PA) and other participating national laboratories and government agencies. These process models provide the necessary framework to test conceptual hypotheses of flow and transport at different scales and predict flow and transport behavior under a variety of climatic and thermal-loading conditions.

  20. Interstellar Dust Scattering Properties

    NASA Astrophysics Data System (ADS)

    Gordon, K. D.

    2004-05-01

    Studies of dust scattering properties in astrophysical objects with Milky Way interstellar dust are reviewed. Such objects are reflection nebulae, dark clouds, and the Diffuse Galactic Light (DGL). To ensure their basic quality, studies had to satisfy four basic criteria to be included in this review. These four criteria significantly reduced the scatter in dust properties measurements, especially in the case of the DGL. Determinations of dust scattering properties were found to be internally consistent for each object type as well as consistent between object types. The 2175 Å bump is seen as an absorption feature. Comparisons with dust grain models find general agreement with significant disagreements at particular wavelengths (especially in the far-ultraviolet). Finally, unanswered questions and future directions are enumerated.

  1. Advanced Ceramics Property Measurements

    NASA Technical Reports Server (NTRS)

    Salem, Jonathan; Helfinstine, John; Quinn, George; Gonczy, Stephen

    2013-01-01

    Mechanical and physical properties of ceramic bodies can be difficult to measure correctly unless the proper techniques are used. The Advanced Ceramics Committee of ASTM, C-28, has developed dozens of consensus test standards and practices to measure various properties of a ceramic monolith, composite, or coating. The standards give the "what, how, how not, and why" for measurement of many mechanical, physical, thermal, and performance properties. Using these standards will provide accurate, reliable, and complete data for rigorous comparisons with other test results from your test lab, or another. The C-28 Committee has involved academics, producers, and users of ceramics to write and continually update more than 45 standards since the committee's inception in 1986. Included in this poster is a pictogram of the C-28 standards and information on how to obtain individual copies with full details or the complete collection of standards in one volume.

  2. Fragmentation properties of metals

    SciTech Connect

    Grady, D.E.; Kipp, M.E.

    1996-06-01

    In the present study we are developing an experimental fracture material property test method specific to dynamic fragmentation. Spherical test samples of the metals of interest are subjected to controlled impulsive stress loads by acceleration to high velocities with a light-gas launcher facility and subsequent normal impact on thin plates. Motion, deformation and fragmentation of the test samples are diagnosed with multiple flash radiography methods. The impact plate materials are selected to be transparent to the x-ray method so that only test metal material is imaged. Through a systematic series of such tests, both strain-to-failure and fragmentation resistance properties are determined through this experimental method. Fragmentation property data for several steels, copper, aluminum, tantalum and titanium have been obtained to date. Aspects of the dynamic data have been analyzed with computational methods to achieve a better understanding of the processes leading to failure and fragmentation, and to test an existing computational fragmentation model.

  3. Compaction properties of isomalt.

    PubMed

    Bolhuis, Gerad K; Engelhart, Jeffrey J P; Eissens, Anko C

    2009-08-01

    Although other polyols have been described extensively as filler-binders in direct compaction of tablets, the polyol isomalt is rather unknown as pharmaceutical excipient, in spite of its description in all the main pharmacopoeias. In this paper the compaction properties of different types of ispomalt were studied. The types used were the standard product sieved isomalt, milled isomalt and two types of agglomerated isomalt with a different ratio between 6-O-alpha-d-glucopyranosyl-d-sorbitol (GPS) and 1-O-alpha-d-glucopyranosyl-d-mannitol dihydrate (GPM). Powder flow properties, specific surface area and densities of the different types were investigated. Compactibility was investigated by compression of the tablets on a compaction simulator, simulating the compression on high-speed tabletting machines. Lubricant sensitivity was measured by compressing unlubricated tablets and tablets lubricated with 1% magnesium stearate on an instrumented hydraulic press. Sieved isomalt had excellent flow properties but the compactibility was found to be poor whereas the lubricant sensitivity was high. Milling resulted in both a strong increase in compactibility as an effect of the higher surface area for bonding and a decrease in lubricant sensitivity as an effect of the higher surface area to be coated with magnesium stearate. However, the flow properties of milled isomalt were too bad for use as filler-binder in direct compaction. Just as could be expected, agglomeration of milled isomalt by fluid bed agglomeration improved flowability. The good compaction properties and the low lubricant sensitivity were maintained. This effect is caused by an early fragmentation of the agglomerated material during the compaction process, producing clean, lubricant-free particles and a high surface for bonding. The different GPS/GPM ratios of the agglomerated isomalt types studied had no significant effect on the compaction properties. PMID:19327398

  4. Calibrated Properties Model

    SciTech Connect

    H. H. Liu

    2003-02-14

    This report has documented the methodologies and the data used for developing rock property sets for three infiltration maps. Model calibration is necessary to obtain parameter values appropriate for the scale of the process being modeled. Although some hydrogeologic property data (prior information) are available, these data cannot be directly used to predict flow and transport processes because they were measured on scales smaller than those characterizing property distributions in models used for the prediction. Since model calibrations were done directly on the scales of interest, the upscaling issue was automatically considered. On the other hand, joint use of data and the prior information in inversions can further increase the reliability of the developed parameters compared with those for the prior information. Rock parameter sets were developed for both the mountain and drift scales because of the scale-dependent behavior of fracture permeability. Note that these parameter sets, except those for faults, were determined using the 1-D simulations. Therefore, they cannot be directly used for modeling lateral flow because of perched water in the unsaturated zone (UZ) of Yucca Mountain. Further calibration may be needed for two- and three-dimensional modeling studies. As discussed above in Section 6.4, uncertainties for these calibrated properties are difficult to accurately determine, because of the inaccuracy of simplified methods for this complex problem or the extremely large computational expense of more rigorous methods. One estimate of uncertainty that may be useful to investigators using these properties is the uncertainty used for the prior information. In most cases, the inversions did not change the properties very much with respect to the prior information. The Output DTNs (including the input and output files for all runs) from this study are given in Section 9.4.

  5. Thermal radiative properties: Coatings.

    NASA Technical Reports Server (NTRS)

    Touloukian, Y. S.; Dewitt, D. P.; Hernicz, R. S.

    1972-01-01

    This volume consists, for the most part, of a presentation of numerical data compiled over the years in a most comprehensive manner on coatings for all applications, in particular, thermal control. After a moderately detailed discussion of the theoretical nature of the thermal radiative properties of coatings, together with an overview of predictive procedures and recognized experimental techniques, extensive numerical data on the thermal radiative properties of pigmented, contact, and conversion coatings are presented. These data cover metallic and nonmetallic pigmented coatings, enamels, metallic and nonmetallic contact coatings, antireflection coatings, resin coatings, metallic black coatings, and anodized and oxidized conversion coatings.

  6. Antifouling properties of hydrogels

    NASA Astrophysics Data System (ADS)

    Murosaki, Takayuki; Ahmed, Nafees; Gong, Jian Ping

    2011-12-01

    Marine sessile organisms easily adhere to submerged solids such as rocks, metals and plastics, but not to seaweeds and fishes, which are covered with soft and wet 'hydrogel'. Inspired by this fact, we have studied long-term antifouling properties of hydrogels against marine sessile organisms. Hydrogels, especially those containing hydroxy group and sulfonic group, show excellent antifouling activity against barnacles both in laboratory assays and in the marine environment. The extreme low settlement on hydrogels in vitro and in vivo is mainly caused by antifouling properties against the barnacle cypris.

  7. Ballistics/mass properties

    NASA Technical Reports Server (NTRS)

    Drendel, Albert S.; Richards, M. C.

    1989-01-01

    The propulsion performance and reconstructed mass properties data from Morton Thiokol's RSRM-4 motors, which were assigned to the STS-30R launch, are presented. The composite type solid propellant burn rates were close to predicted. The performance of the pair of motors were compared to some CEI Specification CPW1-3600 for compliance. Some aspects of the CEI Specification could not be compared because of low sampling of data. The performance of the motors were well within the CEI specification requirements. Post flight reconstructured RSRM mass properties are within expected values for the RSRM quarterweight and halfweight configurations.

  8. Statement on Intellectual Property

    ERIC Educational Resources Information Center

    American Association of University Professors, 2014

    2014-01-01

    The management of university-generated intellectual property is complex and carries significant consequences for those involved in direct negotiations (faculty inventors, companies, university administrators, attorneys, and invention-management agents) as well as those who may be affected (competing companies, the public, patients, and the wider…

  9. The Properties of "Do."

    ERIC Educational Resources Information Center

    Bhat, K. V. T.

    1978-01-01

    The properties of "do", its distribution and meaning, are discussed. "Do" is one of the most common error-zones for Indian learners of English. Two analyses of "do" which account for the distribution and meaning of this element are presented. According to the transformational approach, "do" is introduced in sentence structures by a late…

  10. Calibrated Properties Model

    SciTech Connect

    T. Ghezzehej

    2004-10-04

    The purpose of this model report is to document the calibrated properties model that provides calibrated property sets for unsaturated zone (UZ) flow and transport process models (UZ models). The calibration of the property sets is performed through inverse modeling. This work followed, and was planned in, ''Technical Work Plan (TWP) for: Unsaturated Zone Flow Analysis and Model Report Integration'' (BSC 2004 [DIRS 169654], Sections 1.2.6 and 2.1.1.6). Direct inputs to this model report were derived from the following upstream analysis and model reports: ''Analysis of Hydrologic Properties Data'' (BSC 2004 [DIRS 170038]); ''Development of Numerical Grids for UZ Flow and Transport Modeling'' (BSC 2004 [DIRS 169855]); ''Simulation of Net Infiltration for Present-Day and Potential Future Climates'' (BSC 2004 [DIRS 170007]); ''Geologic Framework Model'' (GFM2000) (BSC 2004 [DIRS 170029]). Additionally, this model report incorporates errata of the previous version and closure of the Key Technical Issue agreement TSPAI 3.26 (Section 6.2.2 and Appendix B), and it is revised for improved transparency.

  11. Thermophysical properties of argon

    SciTech Connect

    Jaques, A.

    1988-02-01

    The entire report consists of tables of thermodynamic properties (including sound velocity, thermal conductivity and diffusivity, Prandtl number, density) of argon at 86 to 400/degree/K, in the form of isobars over 0.9 to 100 bars. (DLC)

  12. Immunopharmacological properties of noopept.

    PubMed

    Kovalenko, L P; Shipaeva, E V; Alekseeva, S V; Pronin, A V; Durnev, A D; Gudasheva, T A; Ostrovskaja, R U; Seredenin, S B

    2007-07-01

    Noopept, a peptide analog of piracetam, enhanced phagocytic activity of mouse peritoneal macrophages, stimulated humoral and cellular immune response to various antigens, and markedly increased spontaneous proliferative activity of splenocytes. In animals with secondary immune deficiency caused by cyclophosphamide, noopept exhibited immunocorrector properties. PMID:18256750

  13. Physical Properties of Polymers

    NASA Astrophysics Data System (ADS)

    Mark, James; Ngai, Kia; Graessley, William; Mandelkern, Leo; Samulski, Edward; Koenig, Jack; Wignall, George

    2004-04-01

    This thoroughly revised and updated third edition is written by seven well-known authorities in the polymer science community. Each author contributes a chapter which reflects his own interests and expertise in the physical states and associated properties of polymers. Second Edition published by the American Chemical Society Hb (1993): 0-841-22505-2

  14. The trespasses of property law.

    PubMed

    Wall, Jesse

    2014-01-01

    The purpose of this article is to identify a limit to the appropriate application of property law to the use and storage of bodily material. I argue here that property law ought to be limited to protecting 'contingent rights' and that recent cases where property rights have been recognised in semen represent the application of property law beyond this limit. I also suggest how the law ought to develop in order to avoid the overextensive use of property law.

  15. Soot Optical Property Study

    NASA Technical Reports Server (NTRS)

    Aung, K. T.; Hassan, M. I.; Krishnan, S. S.; Lin, K.-C.; Xu, F.; Faeth, G. M.; Urban, D. L. (Technical Monitor); Yuan, Z.-G. (Technical Monitor)

    2001-01-01

    Recent past studies of soot reaction processes in laminar premixed and nonpremixed flames generally have used the intrusive technique of thermophoretic sampling and analysis by transmission electron microscopy (TEM) to observe soot structure and obtain important fundamental information about soot particle properties, such as soot primary particle diameters, the rate of change of soot primary particle diameter as a function of time (or rate of soot surface growth or oxidation), the amount of soot particle reactive surface area per unit volume, the number of primary soot particles per unit volume, and the rate of formation of primary soot particles (or the rate of soot primary particle nucleation). Given the soot volume per unit volume of the flame (or the soot volume fraction), all these properties are readily found from a measurement of the soot primary particle diameter (which usually is nearly a constant for each location within a laminar flame). This approach is not possible within freely propagating flames, however, because soot properties at given positions in such flames vary relatively rapidly as a function of time in the soot formation and oxidation regions compared to the relatively lengthy sampling times needed to accumulate adequate soot samples and to minimize effects of soot collected on the sampling grid as it moves to and from the sampling position through other portions of the flame. Thus, nonintrusive optical methods must be used to find the soot primary particle diameters needed to define the soot surface reaction properties mentioned earlier. Unfortunately, approximate nonintrusive methods used during early studies of soot reaction properties in flames, found from laser scattering and absorption measurements analyzed assuming either Rayleigh scattering or Mie scattering from polydisperse effective soot particles having the same mass of soot as individual soot aggregates, have not been found to be an effective way to estimate the soot surface

  16. Property Information System

    1998-01-28

    Provides cradle to grave tracking of DOE property (capital, accountable, etc.). Major functional areas include Acquisitions, Management, Inventory, Accounting, Agreements, Excessing, Dispositions, and Reporting. The Accounting module is not used at this time and may not be operational. A major enhancement added here at Lockheed Martin Energy Systems is the Web-based portion of the system, which allows custodians of property to record location and custodial changes, and to provide inventory confirmations. PLEASE NOTE: Customer mustmore » contact Ben McMurry, (865) 576-5906, Lockheed Martin Energy Ssytems, for help with installation of package. The fee for this installation help will be coordinated by customer and Lockheed Martin and is in addition to the cost of the package from ESTSC. Customer should contact Cheri Cross, (865) 574-6046, for user help.« less

  17. (Properties of steam)

    SciTech Connect

    Palmer, D.A.

    1989-09-21

    The ICPS meetings have been held since the International Association for the Properties of Steam (IAPS) was founded in London in 1929. IAPS is composed of research scientists and engineers whose main aim is to establish recommended values of thermodynamic and other thermophysical properties of water and steam, including more recently solutions for application in power generating systems. The ICPS meetings are organized approximately every five years with lesser meetings in the intermediate years devoted to the functioning of the various working groups. The High Temperature/Pressure Aqueous Chemistry Group has traditionally provided much of the experimental data used in these compilations and models. All papers presented in the five days of this 11th ICPS meeting will be published in their entirety in a single, bound volume.

  18. Property Information System

    SciTech Connect

    McMurry, Ben

    1998-01-28

    Provides cradle to grave tracking of DOE property (capital, accountable, etc.). Major functional areas include Acquisitions, Management, Inventory, Accounting, Agreements, Excessing, Dispositions, and Reporting. The Accounting module is not used at this time and may not be operational. A major enhancement added here at Lockheed Martin Energy Systems is the Web-based portion of the system, which allows custodians of property to record location and custodial changes, and to provide inventory confirmations. PLEASE NOTE: Customer must contact Ben McMurry, (865) 576-5906, Lockheed Martin Energy Ssytems, for help with installation of package. The fee for this installation help will be coordinated by customer and Lockheed Martin and is in addition to the cost of the package from ESTSC. Customer should contact Cheri Cross, (865) 574-6046, for user help.

  19. Antiinflammatory properties of ambroxol.

    PubMed

    Beeh, K M; Beier, J; Esperester, A; Paul, L D

    2008-12-01

    Ambroxol is frequently used as mucolytic agent in respiratory diseases associated with increased mucus production like acute or chronic bronchitis. Further, ambroxol is used topically (lozenges) for the treatment of sore throat and pharyngitis associated with common cold. In addition to the effects of ambroxol on mucus regulation and local anaesthetic effects, a wide range of pharmacological antiinflammatory properties of ambroxol have been described in vitro and in vivo, including inhibition or scavenging of oxidative and nitro?sative stress, increase of local defense molecules involved in respiratory virus replication, reduction of proinflammatory cytokines and arachidonic acid meta?bolites, inflammatory cell chemotaxis, and lipid peroxidation of tissues. The present review summarizes the antiinflammatory effects of ambroxol and relates these properties to results from controlled clinical trials in targeted diseases such as chronic bronchitis, chronic obstructive pulmonary disease and sore throat.

  20. Properties of gallium arsenide

    SciTech Connect

    Not Available

    1985-01-01

    Properties of Gallium Arsenide' is a handbook of evaluated numeric data and reviewed knowledge distilled by those working at the frontiers of gallium arsenide research. In addition to providing numeric data on basic physical, electronic and optical properties, the book covers many device-related aspects of gallium arsenide. Carrier attributes (ionisation coefficients, concentration, mobility, diffusion etc), deep levels and defects are surveyed and related to the various growth techniques such as MBE, VPE, and MOCVD. Sections on surface structure, oxidation, interfaces and etching are of particular relevance to integrated circuit research. Especially important in the race to achieve commercially usable samples is a state-of-the-art survey on the infra-red imaging of defects in semi-insulating gallium arsenide produced by the liquid-encapsulated Czochralski process.

  1. Uranus satellites - Surface properties

    NASA Technical Reports Server (NTRS)

    Veverka, J.; Brown, R. H.; Bell, Jeffrey F.

    1991-01-01

    The post-Voyager knowledge of the photometric, colorimetric, spectral, and thermal properties of the Uranian satellites is reviewed, focusing on such fundamental physical properties as albedo, color, and surface texture. While albedo variations of at least a factor of 2 exist, color differences are almost absent (Miranda) or subdued (Oberon). In the case of Titania, the strong opposition effect reported by ground-based observers was confirmed by Voyager. Voyager did not observe the opposition parts of the phase curves of the other satellites. Voyager thermal observations of Ariel and Miranda suggest that both have highly porous regoliths, thermophysically similar to those of Jupiter's icy satellites. At the time of the flyby (south pole facing the sun), maximum surface temperatures reached or exceeded 85 K, but nighttime polar temperatures are predicted to drop to 20 to 30 K because each pole spends about 40 yr in darkness. Ground-based spectroscopy identified water ice as an important surface constituent.

  2. Shock Properties of AION

    NASA Astrophysics Data System (ADS)

    Cazamias, James; Fiske, S. J.; Bless, Stephan

    2001-06-01

    Transparent materials have many applications for impact protection. The modeling of transparent ceramics relies heavily on a description of failure of these materials under compressive loads, generally derived from experience with opaque ceramics. However, the microstructural properties that are responsible for transparency also imply that sites for stress concentrations are much reduced when a medium is transparent. Recently there has been increasing interest in aluminum oxynitride (AlON, transparent alumina) which possesses isotropic optical and mechanic properties. We performed a series of plate impact experiments on the material. We observed an HEL of 11.0 to 11.4 GPa. We also observed a change in spall strength from 1.7 to .15 GPa as the initial shock was increased from 4.8 to 10.0 GPa.

  3. Top quark properties

    SciTech Connect

    Hong, Ziqing

    2014-10-31

    The top quark physics has entered the precision era. The CDF and D0 collaborations are finalizing their legacy results of the properties of the top quark after the shutdown of the Fermilab Tevatron three years ago. The ATLAS and CMS collaborations have been publishing results from the LHC Run I with 7 TeV and 8 TeV proton-proton collisions, with many more forthcoming. We present a selection of recent results produced by the Tevatron and LHC experiments.

  4. PHOTOEMISSION PROPERTIES OF LEAD.

    SciTech Connect

    SMEDLEY,J.; RAO,T.; WARREN,J.; SEKUTOWICZ,J.; LEFFERTS,R.; LIPSKI,A.

    2004-07-05

    In this paper we present a study of the photoemission properties of lead at several UV wavelengths, including a study of the damage threshold of electroplated lead under laser cleaning. A quantum efficiency in excess of 0.1% has been achieved for a laser cleaned, electroplated lead sample with a laser wavelength of 193 nm. Niobium cathodes have been measured for comparison, and lead is found to be a superior photoemitter for all measured wavelengths.

  5. Chondrule magnetic properties

    NASA Technical Reports Server (NTRS)

    Wasilewski, P. J.; Obryan, M. V.

    1994-01-01

    The topics discussed include the following: chondrule magnetic properties; chondrules from the same meteorite; and REM values (the ratio for remanence initially measured to saturation remanence in 1 Tesla field). The preliminary field estimates for chondrules magnetizing environments range from minimal to a least several mT. These estimates are based on REM values and the characteristics of the remanence initially measured (natural remanence) thermal demagnetization compared to the saturation remanence in 1 Tesla field demagnetization.

  6. Antimicrobial properties of honey.

    PubMed

    Israili, Zafar H

    2014-01-01

    Honey has been widely accepted as food and medicine by all generations, traditions, and civilizations, both ancient and modern. For at least 2700 years, honey has been used by humans to treat a variety of ailments through topical application, but only recently have the antiseptic and antimicrobial properties of honey been discovered. Honey has been reported to be effective in a number of human pathologies. Clinical studies have demonstrated that application of honey to severely infected cutaneous wounds rapidly clears infection from the wound and improves tissue healing. A large number of in vitro and limited clinical studies have confirmed the broad-spectrum antimicrobial (antibacterial, antifungal, antiviral, and antimycobacterial) properties of honey, which may be attributed to the acidity (low pH), osmotic effect, high sugar concentration, presence of bacteriostatic and bactericidal factors (hydrogen peroxide, antioxidants, lysozyme, polyphenols, phenolic acids, flavonoids, methylglyoxal, and bee peptides), and increase in cytokine release, and to immune modulating and anti-inflammatory properties of honey; the antimicrobial action involves several mechanisms. Despite a large amount of data confirming the antimicrobial activity of honey, there are no studies that support the systemic use of honey as an antibacterial agent. PMID:23782759

  7. Dielectric properties of aerogels

    SciTech Connect

    Hrubesh, L.W.; Keene, L.E.; Latorre, V.R. )

    1993-07-01

    We have measured the real (dielectric constant) and imaginary (loss factor) components of the complex relative permittivity at 298 [degree]K using microwave frequencies (2, 10, and 18--40 GHz), for bulk SiO[sub 2]-aerogels and for two types of organic aerogels, resorcinol-formaldehyde (RF) and melamine-formaldehyde (MF). Measured dielectric constants are found to vary linearly between values of 1.0 and 2.0 for aerogel densities from 10 to 500 kg/m[sup 3]. For the same range of densities, the measured loss tangents vary linearly between values of 2[times]10[sup [minus]4] and 7[times]10[sup [minus]2]. The observed linearity of the dielectric properties with density in aerogels at microwave frequencies shows that their dielectric behavior is more gas-like than solid-like. The dielectric properties of aerogels are shown to be significantly affected by the adsorbed water internal to the bulk material. For example, water accounts for 7% of the dielectric constant and 70% of the loss at microwave frequencies for silica aerogels. Because of their very high porosity, even with the water content, the aerogels are among the few materials exhibiting such low dielectric properties. Our measurements show that aerogels with greater than 99% porosity have dielectric constants less than 1.03; these are the lowest values ever reported for a bulk solid material.

  8. Optical properties of flyash

    SciTech Connect

    Self, S.A.

    1990-10-01

    The general aims of this research are to provide a fundamental scientific basis for the physical understanding and reliable calculation of radiative heat transfer in coal combustion systems, particularly as it is influenced by the presence of inorganic constituents deriving from the mineral matter in coal. Work is organized under four tasks: Characterization of Flyash: The chemical composition and size distribution of representative flyashes are being measured by appropriate microanalytical techniques; Measurements of the Optical Constants of Slags: Measurements of the infrared optical constants (i.e., the complex reflective index m = n {minus} ik) of synthetic slags are being made as a function of wavelength and temperature for controlled compositions. Particular attention will be given to the contribution of the Fe{sub 2}O{sub 3} content and its valence state. The data is being reduced to yield formulae giving the complex refractive index over relevant ranges of wavelength and temperatures, as a function of the relevant metal oxide constituents; Sample Calculations of the Radiant Properties of Flyash Dispersions: This component comprises various calculations to guide and evaluate the experimental work under the other three tasks; and Measurement of the Radiant Properties of Flyash Dispersions: This bench-scale experiment is planned to compare the measured radiant properties of a dispersion of well-characterized ash with computations based on data developed under the first two tasks. Progress is described in all areas. 10 refs., 20 figs., 5 tabs.

  9. Properties of magnetoelectric susceptibility

    NASA Astrophysics Data System (ADS)

    Zhai, Junyi; Li, Jiefang; Viehland, Dwight; Bichurin, M. I.

    2006-03-01

    The magnetoelectric (ME) susceptibility is the principle property of ME materials, determining the connection between polarization (or electric induction) and an external magnetic field. Since measurement of the ME susceptibility over a wide frequency range [1] and the design of new ME devices require more information about the ME susceptibility, the present work has focused on this property in detail. First, we consider the ME susceptibility as a complex parameter with both real and the imaginary parts, advancing a methodology for measurement of these values. Second, we have analyzed the ME susceptibility, for example a trilayer laminate composite of Terfenol-D/PZT, Terfenol-D, and found a maximum value of ˜3.5x10-7s/m in the electromechanical resonance range. In addition, we have studied the internal structure of the ME susceptibility: i.e., its dependencies on phase volume fractions, layer thickness, and choice of materials couple. Our results for the ME susceptibility will allow it to be more correctly used both as a fundamental materials property and also in potential ME device applications. [1] M.I. Bichurin, V.M. Petrov,Yu.V. Kiliba, and G. Srinivasan. Phys. Rev. B 66, 134404 (2002).

  10. Top Quark Properties

    SciTech Connect

    Peters, Yvonne

    2011-12-01

    Since its discovery in 1995 by the CDF and D0 collaborations at the Fermilab Tevatron collider, the top quark has undergone intensive studies. Besides the Tevatron experiments, with the start of the LHC in 2010 a top quark factory started its operation. It is now possible to measure top quark properties simultaneously at four different experiments, namely ATLAS and CMS at LHC and CDF and D0 at Tevatron. Having collected thousands of top quarks each, several top quark properties have been measured precisely, while others are being measured for the first time. In this article, recent measurements of top quark properties from ATLAS, CDF, CMS and D0 are presented, using up to 5.4 fb{sup -1} of integrated luminosity at the Tevatron and 1.1 fb{sup -1} at the LHC. In particular, measurements of the top quark mass, mass difference, foward backward charge asymmetry, t{bar t} spin correlations, the ratio of branching fractions, W helicity, anomalous couplings, color flow and the search for flavor changing neutral currents are discussed.

  11. Elastic properties of minerals

    SciTech Connect

    Aleksandrov, K.S.; Prodaivoda, G.T.

    1993-09-01

    Investigations of the elastic properties of the main rock-forming minerals were begun by T.V. Ryzhova and K.S. Aleksandrov over 30 years ago on the initiative of B.P. Belikov. At the time, information on the elasticity of single crystals in general, and especially of minerals, was very scanty. In the surveys of that time there was information on the elasticity of 20 or 30 minerals. These, as a rule, did not include the main rock-forming minerals; silicates were represented only by garnets, quartz, topaz, tourmaline, zircon, beryl, and staurolite, which are often found in nature in the form of large and fairly high-quality crystals. Then and even much later it was still necessary to prove a supposition which now seems obvious: The elastic properties of rocks, and hence the velocities of elastic (seismic) waves in the earth`s crust, are primarily determined by the elastic characteristics of the minerals composing these rocks. Proof of this assertion, with rare exceptions of mono-mineralic rocks (marble, quartzite, etc.) cannot be obtained without information on the elasticities of a sufficiently large number of minerals, primarily framework, layer, and chain silicates which constitute the basis of most rocks. This also served as the starting point and main problem of the undertakings of Aleksandrov, Ryzhova, and Belikov - systematic investigations of the elastic properties of minerals and then of various rocks. 108 refs., 7 tabs.

  12. Mechanical Properties of Cells

    NASA Technical Reports Server (NTRS)

    Bradley, Robert; Becerril, Joseph; Jeevarajan, Anthony

    2007-01-01

    Many physiologic and pathologic processes alter the biomechanical properties of the tissue they affect, and these changes may be manifest at the single cell level. The normal and abnormal mechanical properties of a given cell type can be established with the aid of an atomic force microscope (AFM), nonetheless, consistency in the area of the tip has been a mayor limitation of using the AFM for quantitative measurements of mechanical properties. This project attempts to overcome this limitation by using materials with a known elastic modulus, which resembles the one of the cell, to create force-deformation curves to calculate the area of indentation by means of Hooke s Law (sigma = E(epsilon)), which states that stress (sigma) is proportional to the strain (epsilon) where the constant of proportionality, E, is called the Young s modulus, also referred as the elastic modulus. Hook s Law can be rearranged to find the area of indentation (Area= Force/ E(epsilon)), where the indentation force is defined by the means of the added mass spring calibration method.

  13. Properties of Ferroelectric Nanostructures

    NASA Astrophysics Data System (ADS)

    Ponomareva, Inna

    2008-03-01

    Ferroelectric nanostructures (FENs) such as thin films, nanowires and nanodots are receiving a lot of attention due to their potential for technological applications and to the rich variety of underlying physics. Interestingly, properties of FENs can substantially deviate from their bulk counterpart due to their sensitivity to many factors. Examples of such factors are the electrical boundary conditions (associated with the full, partial or non-existent screening of polarization-induced surface charges) and mechanical boundary conditions (arising from the lattice mismatch between the FEN and its substrate). Here, we developed and used computational schemes to predict many properties in various FENs, as well as, to provide atomistic insight to their complex phenomena. In particular, we will show the striking following features and reveal their origins: *The interplay between electrical boundary conditions, mechanical boundary conditions and growth direction results in the appearance of novel dipole patterns and new low-symmetry phases possessing superior dielectric properties in ferroelectric dots, wires and films [1,2]. *FENs can exhibit dielectric anomalies, such as a negative dielectric susceptibility [3]. *Nanobubbles can form in ferroelectric films under an external electric field [4]. *An homogeneous electric field can be used to control the chirality of vortex structures in asymmetric ferroelectric dots, via the creation of original intermediate states [5]. [1] I. Ponomareva et al., Phys. Rev. B 72, 214118 (2005). [2] I. Ponomareva and L. Bellaiche, Phys. Rev. B 74, 064102 (2006). [3] I. Ponomareva et al., to be published in Phys. Rev. Lett. (2007). [4] B.-K. Lai et al., Phys. Rev. Lett. 96, 137602 (2006). [5] S. Prosandeev et al., submitted (2007). These works have been done in collaboration with L. Bellaiche, I. Kornev, B.-K. Lai, I.I. Naumov, R. Resta and S. Prosandeev. Some computations were made possible thanks to the MRI Grants 0421099 and 0722625 from

  14. Tribological properties of surfaces

    NASA Technical Reports Server (NTRS)

    Buckley, D. H.

    1978-01-01

    The real area of contact between two solid surfaces is only a small portion of the apparent area. Deformation of these areas can result in solid state contact through surface films. For clean solid to solid contact strong adhesive bonding occurs across the interface. Under these conditions many properties of the solid such as the metallurgical and chemical nature of metals can influence adhesion, friction, and wear behavior. The presence of gases, liquids, and solid films on the surface of solids alter markedly tribological characteristics. These surface films can also considerably change the mechanical effects of solid state contact on bulk material behavior.

  15. Functional properties of vinegar.

    PubMed

    Budak, Nilgün H; Aykin, Elif; Seydim, Atif C; Greene, Annel K; Guzel-Seydim, Zeynep B

    2014-05-01

    A variety of natural vinegar products are found in civilizations around the world. A review of research on these fermented products indicates numerous reports of health benefits derived by consumption of vinegar components. Therapeutic effects of vinegar arising from consuming the inherent bioactive components including acetic acid, gallic acid, catechin, ephicatechin, chlorogenic acid, caffeic acid, p-coumaric acid, and ferulic acid cause antioxidative, antidiabetic, antimicrobial, antitumor, antiobesity, antihypertensive, and cholesterol-lowering responses. The aims of this article are to discuss vinegar history, production, varieties, acetic acid bacteria, and functional properties of vinegars.

  16. Elastic properties of nanowires

    NASA Astrophysics Data System (ADS)

    da Fonseca, Alexandre F.; Malta, C. P.; Galva~O, Douglas S.

    2006-05-01

    We present a model to study Young's modulus and Poisson's ratio of the composite material of amorphous nanowires. It is an extension of the model derived by two of us [da Fonseca and Galva~o, Phys. Rev. Lett. 92, 175502 (2004)] to study the elastic properties of amorphous nanosprings. The model is based on twisting and tensioning a straight nanowire and we propose an experimental setup to obtain the elastic parameters of the nanowire. We used the Kirchhoff rod model to obtain the expressions for the elastic constants of the nanowire.

  17. Dielectric Properties Of Nanoferrites

    SciTech Connect

    Jankov, Stevan B.; Cvejic, Zeljka N.; Rakic, Srdjan; Srdic, Vladimir

    2007-04-23

    Dielectric properties: permittivity, loss factor, tan delta and ionic conductivity of nanostructured ferrites have been measured. Samples used were nickel, zinc and yttrium doped ferrites mixed in various ratios. The synthesis has been performed using precipitation method and obtained powders were pressed in pellets under varying pressure. X-ray diffractography approach for the refinement of structure and microstructural analysis has been performed. All parameters have been measured in 1 Hz to 100 kHz frequency range and 30 deg. C to 80 deg. C temperature range. Significant improvements in permittivity, loss factor and ionic conductivity comparing to bulk samples have been observed.

  18. On Topological Properties of Functions.

    ERIC Educational Resources Information Center

    Hazzan, Orit

    1996-01-01

    Focuses on the understanding of the concept of function and presents discussions of the topological properties of functions and of students' mathematical thinking when they are asked to determine whether a property of a function is a topological property or not. Contains 15 references. (DDR)

  19. Time Translation of Quantum Properties

    NASA Astrophysics Data System (ADS)

    Laura, Roberto; Vanni, Leonardo

    2009-02-01

    Based on the notion of time translation, we develop a formalism to deal with the logic of quantum properties at different times. In our formalism it is possible to enlarge the usual notion of context to include composed properties involving properties at different times. We compare our results with the theory of consistent histories.

  20. Hydrogen technology survey: Thermophysical properties

    NASA Technical Reports Server (NTRS)

    Mccarty, R. D.

    1975-01-01

    The thermodynamic functions, transport properties, and physical properties of both liquid and gaseous hydrogen are presented. The low temperature regime is emphasized. The tabulation of the properties of normal hydrogen in both Si and engineering units is given along with the tabulation of parahydrogen.

  1. 75 FR 61412 - Information Collection; Federal Excess Personal Property (FEPP) and Firefighter Property (FFP...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-10-05

    ... Forest Service Information Collection; Federal Excess Personal Property (FEPP) and Firefighter Property... Personal Property (FEPP) and Firefighter Property (FFP) program Cooperative Agreements. DATES: Comments... Personal Property (FEPP) and Firefighter Property (FFP) Cooperative Agreements. OMB Number: 0596-NEW....

  2. Clay Minerals: Adsorbophysical Properties

    NASA Astrophysics Data System (ADS)

    Kotova, O.

    2013-12-01

    The structure and features of surfaces of clay minerals (kaolin, montmorillonite, etc) have an important scientific and practical value. On the surface the interrelation of processes at electronic, atomic and molecular levels is realized. Availability of mineral surface to external influences opens wide scientific and technical opportunities of use of the surface phenomena, so the research of crystal-chemical and crystal-physical processes in near-surface area of clay minerals is important. After long term researches of gas-clay mineral system in physical fields the author has obtained experimental and theoretical material contributing to the creation of the surface theory of clays. A part of the researches is dedicated to studying the mechanism of crystal-chemical and crystal-physical processes in near surface area of clay mineral systems, selectivity of the surface centers to interact with gas phase molecules and adsorbophysical properties. The study of physical and chemical properties of fine clay minerals and their modification has a decisive importance for development of theory and practice of nanotechnologies: they are sorbents, membranes, ceramics and other materials with required electronic features.

  3. Rhenium material properties

    SciTech Connect

    Biaglow, J.A.

    1995-09-01

    Tensile data were obtained from four different types of rhenium at ambient and elevated temperatures. The four types of rhenium included chemical vapor deposition (CVD) and three powder metallurgy (PM) types, i.e., rolled sheet and pressed and sintered bars, with and without hot isostatic pressure (HIP) treatment. Results revealed a wide range of values with ultimate strengths at ambient temperatures varying from 663 MPa for CVD rhenium to 943 MPa for rolled sheet. A similar spread was also obtained for material tested at 1088 K and 1644 K. The wide variance observed with the different materials indicated that the rhenium manufacturing process, material composition and prior handling strongly dictated its properties. In addition to tensile properties, CVD, pressed and sintered material and HIP rhenium successfully completed 100 cycles of low cycle fatigue. Creep data were also obtained showing that CVD and pressed and sintered rhenium could sustain five hours of testing under a tension of 27.5 MPa at 1922 K.

  4. [Robots and intellectual property].

    PubMed

    Larrieu, Jacques

    2013-12-01

    This topic is part of the global issue concerning the necessity to adapt intellectual property law to constant changes in technology. The relationship between robots and IP is dual. On one hand, the robots may be regarded as objects of intellectual property. A robot, like any new machine, could qualify for a protection by a patent. A copyright may protect its appearance if it is original. Its memory, like a database, could be covered by a sui generis right. On the other hand, the question of the protection of the outputs of the robot must be raised. The robots, as the physical embodiment of artificial intelligence, are becoming more and more autonomous. Robot-generated works include less and less human inputs. Are these objects created or invented by a robot copyrightable or patentable? To whom the ownership of these IP rights will be allocated? To the person who manufactured the machine ? To the user of the robot? To the robot itself? All these questions are worth discussing.

  5. Rock Properties Model

    SciTech Connect

    C. Lum

    2004-09-16

    The purpose of this model report is to document the Rock Properties Model version 3.1 with regard to input data, model methods, assumptions, uncertainties and limitations of model results, and qualification status of the model. The report also documents the differences between the current and previous versions and validation of the model. The rock properties model provides mean matrix and lithophysae porosity, and the cross-correlated mean bulk density as direct input to the ''Saturated Zone Flow and Transport Model Abstraction'', MDL-NBS-HS-000021, REV 02 (BSC 2004 [DIRS 170042]). The constraints, caveats, and limitations associated with this model are discussed in Section 6.6 and 8.2. Model validation accomplished by corroboration with data not cited as direct input is discussed in Section 7. The revision of this model report was performed as part of activities being conducted under the ''Technical Work Plan for: The Integrated Site Model, Revision 05'' (BSC 2004 [DIRS 169635]). The purpose of this revision is to bring the report up to current procedural requirements and address the Regulatory Integration Team evaluation comments. The work plan describes the scope, objectives, tasks, methodology, and procedures for this process.

  6. Rhenium material properties

    NASA Technical Reports Server (NTRS)

    Biaglow, James A.

    1995-01-01

    Tensile data were obtained from four different types of rhenium at ambient and elevated temperatures. The four types of rhenium included chemical vapor deposition (CVD) and three powder metallurgy (PM) types, i.e., rolled sheet and pressed and sintered bars, with and without hot isostatic pressure (HIP) treatment. Results revealed a wide range of values with ultimate strengths at ambient temperatures varying from 663 MPa for CVD rhenium to 943 MPa for rolled sheet. A similar spread was also obtained for material tested at 1088 K and 1644 K. The wide variance observed with the different materials indicated that the rhenium manufacturing process, material composition and prior handling strongly dictated its properties. In addition to tensile properties, CVD, pressed and sintered material and HIP rhenium successfully completed 100 cycles of low cycle fatigue. Creep data were also obtained showing that CVD and pressed and sintered rhenium could sustain five hours of testing under a tension of 27.5 MPa at 1922 K.

  7. Antimicrobial properties of hemoglobin.

    PubMed

    Sheshadri, Preethi; Abraham, Jayanthi

    2012-12-01

    Hemoglobin consists of a heme containing component and a globin unit. It exists as a tetramer with 2 α subunits and 2 β subunits in adults and with 2 α subunits and 2 γ chains in infants. On proteolytic cleavage, hemoglobin breaks down to produce many biologically active compounds, among which are hemocidins, those which exhibit antimicrobial property. The generation of these peptides does not depend on the blood group, Rhesus factor, age and sex of the healthy donors. The microbicidal activity has been observed against a variety of gram positive and Gram-negative bacteria, and against filamentous fungi, yeast and even certain parasites. The discovery of hemocidins opens a new field for research into the details of the peptides acting as second line of defence in boosting the innate immune system of the organisms.

  8. Optical properties of flyash

    SciTech Connect

    Self, S.A.

    1991-11-01

    This is the sixteenth quarterly report under DOE contract No. DE-AC22-87PC 79903 entitled Optical Properties of Flyash.'' Tasks 1 and 2 of this program were funded from September 15, 1987. Tasks 3 and 4 were funded from September 15, 1988. The general aims of this research are to provide a fundamental scientific basis for the physical understanding and reliable calculation of radiative heat transfer in coal combustion systems, particularly as it is influenced by the presence of inorganic constituents deriving from the mineral matter in coal. Some preliminary work in this area has been carried out at Stanford in the past several years with NSF support. The present program will greatly enlarge the scope of this work.

  9. Dust properties from scattering

    NASA Astrophysics Data System (ADS)

    Lefèvre, C.; Pagani, L.; Min, M.; Poteet, C.; Whittet, D.; Cambrésy, L.

    2016-05-01

    Dust grains evolve during the life cycle of the interstellar matter. From their birth places to dense molecular clouds, they grow by coagulation and acquire ice mantles, mainly composed of water. These morphological changes affect their optical properties. However, it remains a highly degenerate issue to determine their composition, size distribution, and shape from observations. In particular, using wavelengths associated to dust emission alone is not sufficient to investigate dense cold cores. Fortunately, scattering has turned out to be a powerful tool to investigate molecular clouds from the outer regions to the core. In particular, it is possible to quantify the amount of dust aggregates needed to reproduce observations from 1.25 to 8 μm.

  10. Properties of subentropy

    SciTech Connect

    Datta, Nilanjana; Dorlas, Tony; Jozsa, Richard; Benatti, Fabio

    2014-06-15

    Subentropy is an entropy-like quantity that arises in quantum information theory; for example, it provides a tight lower bound on the accessible information for pure state ensembles, dual to the von Neumann entropy upper bound in Holevo's theorem. Here we establish a series of properties of subentropy, paralleling the well-developed analogous theory for von Neumann entropy. Further, we show that subentropy is a lower bound for min-entropy. We introduce a notion of conditional subentropy and show that it can be used to provide an upper bound for the guessing probability of any classical-quantum state of two qubits; we conjecture that the bound applies also in higher dimensions. Finally, we give an operational interpretation of subentropy within classical information theory.

  11. Thermodynamic properties of minerals

    USGS Publications Warehouse

    Robie, Richard A.

    1962-01-01

    In the ten years since the publication of the national Bureau of Standards comprehensive tables of thermochemical properties, by Rossini and other (1952), a very large body of modern calorimetric and equilibrium data has become available. Because of the complex interrelations among many thermochemical data and the necessity for internal consistency among these values, a complete revision of this standard reference is required. This is also true of the summaries of thermochemical data for the sulfides (Richardson and Jeffes 1952) and for the oxides (Coughlin 1954). The following tables present critically selected values for the heat and free energy of formation, the logarithm of the equilibrium constant of formation Log Kf, the entropy and the molar volume, at 298.15°K (25.0°C) and one atmosphere for minerals.

  12. Elastic properties of HMX.

    SciTech Connect

    Sewell, T. D.; Bedrov, D.; Menikoff, Ralph; Smith, G. D.

    2001-01-01

    Atomistic molecular dynamics simulations have been used to calculate isothermal elastic properties for {beta}-, {alpha}-, and {delta}-HMX. The complete elastic tensor for each polymorph was determined at room temperature and pressure via analysis of microscopic strain fluctuations using formalism due to Rahman and Parrinello [J. Chem. Phys. 76,2662 (1982)]. Additionally, the isothermal compression curve was computed for {beta}-HMX for 0 {le} p {le} 10.6 GPa; the bulk modulus K and its pressure derivative K{prime} were obtained from two fitting forms employed previously in experimental studies of the {beta}-HMX equation of state. Overall, the results indicate good agreement between the bulk modulus predicted from the measured and calculated compression curves. The bulk modulus determined directly from the elastic tensor of {beta}-HMX is in significant disagreement with the compression curve-based results. The explanation for this discrepancy is an area of current research.

  13. Basic properties and variability

    NASA Technical Reports Server (NTRS)

    Querci, Francois R.

    1987-01-01

    Giant and supergiant M, S, and C stars are discussed in this survey of research. Basic properties as determined by spectra, chemical composition, photometry, or variability type are discussed. Space motions and space distributions of cool giants are described. Distribution of these stars in our galaxy and those nearby is discussed. Mira variables in particular are surveyed with emphasis on the following topics: (1) phase lag phenomenon; (2) Mira light curves; (3) variations in color indices; (4) determination of multiple periods; (5) correlations between quantities such as period length, light-curve shape, infrared (IR) excess, and visible and IR color diagram; (6) semiregular (SR) variables and different time scales in SR light variations; (7) irregular variable Lb and Lc stars; (8) different time-scale light variations; (9) hydrogen-deficient carbon (HdC) stars, in particular RCB stars; and (10) irreversible changes and rapid evolution in red variable stars.

  14. Computational modeling of properties

    NASA Technical Reports Server (NTRS)

    Franz, Judy R.

    1994-01-01

    A simple model was developed to calculate the electronic transport parameters in disordered semiconductors in strong scattered regime. The calculation is based on a Green function solution to Kubo equation for the energy-dependent conductivity. This solution together with a rigorous calculation of the temperature-dependent chemical potential allows the determination of the dc conductivity and the thermopower. For wide-gap semiconductors with single defect bands, these transport properties are investigated as a function of defect concentration, defect energy, Fermi level, and temperature. Under certain conditions the calculated conductivity is quite similar to the measured conductivity in liquid 2-6 semiconductors in that two distinct temperature regimes are found. Under different conditions the conductivity is found to decrease with temperature; this result agrees with measurements in amorphous Si. Finally the calculated thermopower can be positive or negative and may change sign with temperature or defect concentration.

  15. Computational modeling of properties

    NASA Technical Reports Server (NTRS)

    Franz, Judy R.

    1994-01-01

    A simple model was developed to calculate the electronic transport parameters in disordered semiconductors in strong scattered regime. The calculation is based on a Green function solution to Kubo equation for the energy-dependent conductivity. This solution together with a rigorous calculation of the temperature-dependent chemical potential allows the determination of the dc conductivity and the thermopower. For wise-gap semiconductors with single defect bands, these transport properties are investigated as a function of defect concentration, defect energy, Fermi level, and temperature. Under certain conditions the calculated conductivity is quite similar to the measured conductivity in liquid II-VI semiconductors in that two distinct temperature regimes are found. Under different conditions the conductivity is found to decrease with temperature; this result agrees with measurements in amorphous Si. Finally the calculated thermopower can be positive or negative and may change sign with temperature or defect concentration.

  16. Materials property measurements

    SciTech Connect

    Boyd, D.M.; Green, E.R.; Doctor, S.R.; Good, M.S.

    1990-04-19

    An in-depth review of the measurement techniques that could be used in materials characterization is presented. The measurement techniques to non-destructively determine the in-service or time-related aging of materials considered include ultrasonic velocity and attenuation, eddy current conductivity, neutron scattering and absorption, conventional and tomographic imaging for ultrasonic and radiation imaging, x-ray scattering, thermal impedance, and magnetic hysteresis. The three sections of the report include a review of failure mechanisms in steel and a discussion of nondestructive evaluation techniques and fracture mechanics, a description of a chart on Measurement Techniques versus Material Properties, and recommendations on the techniques and tests to be performed for the experimental investigations and analysis task of the project. 49 refs., 7 figs.

  17. Electromagnetic properties of baryons

    SciTech Connect

    Ledwig, T.; Pascalutsa, V.; Vanderhaeghen, M.; Martin-Camalich, J.

    2011-10-21

    We discuss the chiral behavior of the nucleon and {Delta}(1232) electromagnetic properties within the framework of a SU(2) covariant baryon chiral perturbation theory. Our one-loop calculation is complete to the order p{sup 3} and p{sup 4}/{Delta} with {Delta} as the {Delta}(1232)-nucleon energy gap. We show that the magnetic moment of a resonance can be defined by the linear energy shift only when an additional relation between the involved masses and the applied magnetic field strength is fulfilled. Singularities and cusps in the pion mass dependence of the {Delta}(1232) electromagnetic moments reflect a non-fulfillment. We show results for the pion mass dependence of the nucleon iso-vector electromagnetic quantities and present preliminary results for finite volume effects on the iso-vector anomalous magnetic moment.

  18. Chemical properties of mendelevium

    SciTech Connect

    Hulet, E.K.

    1980-11-01

    Even with the most intense ion beams and the largest available quantities of target isotope, about 10/sup 6/ atoms at a time is all the Md that can be produced for chemical studies. This lack of sufficient sample size coupled with the very short lifetimes of the few atoms produced has severely restricted the gathering and the broadness of our knowledge concerning the properties of Md and the heavier elements. To illustrate, the literature contains a mere eleven references to the chemical studies of Md, and none of these deal with bulk properties associated with the element bound in solid phases. Some of these findings are: Md was found to be more volatile than other actinide metals which lead to the belief that it is divalent in the metallic state; separation of Md from the other actinides can be accomplished either by reduction of Md/sup 3 +/ to the divalent state or by chromatographic separations with Md remaining in the tripositive state; extraction of Md/sup 2 +/ with bis(2-ethylhexyl)phosphoric acid is much poorer than the extraction of the neighboring tripositive actinides; attempts to oxidize Md/sup 3 +/ with sodium bismuthate failed to show any evidence for Md/sup 4 +/; reduction potential of Md/sup 3 +/ was found to be close to -0.1 volt; Md/sup 3 +/ can be reduced to Md(Hg) by sodium amalgams and by electrolysis; the electrochemical behavior of Md is very similar to that of Fm and can be summarized in the equation, Md/sup 2 +/ + 2e/sup -/ = Md(Hg) and E/sup 0/ = -1.50 V.; and Md cannot be reduced to a monovalent ion with Sm/sup 2 +/.

  19. Frankincense--therapeutic properties.

    PubMed

    Al-Yasiry, Ali Ridha Mustafa; Kiczorowska, Bożena

    2016-01-01

    Recently, increasing interest in natural dietary and therapeutic preparations used as dietary supplements has been observed. One of them is frankincense. This traditional medicine of the East is believed to have anti-inflammatory, expectorant, antiseptic, and even anxiolytic and anti-neurotic effects. The present study aims to verify the reported therapeutic properties of Boswellia resin and describe its chemical composition based on available scientific studies. The main component of frankincense is oil (60%). It contains mono- (13%) and diterpenes (40%) as well as ethyl acetate (21.4%), octyl acetate (13.4%) and methylanisole (7.6%). The highest biological activity among terpenes is characteristic of 11-keto-ß-acetyl-beta-boswellic acid, acetyl-11-keto-ß-boswellic acid and acetyl-α-boswellic acid. Contemporary studies have shown that resin indeed has an analgesic, tranquilising and anti-bacterial effects. From the point of view of therapeutic properties, extracts from Boswellia serrata and Boswellia carterii are reported to be particularly useful. They reduce inflammatory conditions in the course of rheumatism by inhibiting leukocyte elastase and degrading glycosaminoglycans. Boswellia preparations inhibit 5-lipoxygenase and prevent the release of leukotrienes, thus having an anti-inflammatory effect in ulcerative colitis, irritable bowel syndrome, bronchitis and sinusitis. Inhalation and consumption of Boswellia olibanum reduces the risk of asthma. In addition, boswellic acids have an antiproliferative effect on tumours. They inhibit proliferation of tumour cells of the leukaemia and glioblastoma subset. They have an anti-tumour effect since they inhibit topoisomerase I and II-alpha and stimulate programmed cell death (apoptosis). PMID:27117114

  20. Effective Transport Properties

    NASA Astrophysics Data System (ADS)

    Mauri, Roberto

    In this chapter we study a particular case of multiphase systems, namely two-phase materials in which one of the phases is randomly dispersed in the other, so that the composite can be viewed on a macroscale as an effective continuum, with well defined properties. In general, the theoretical determination of the parameter for an effective medium requires, as a rule, the solution of a corresponding transport problem at the microscale, which takes into account the morphology of the system and its evolution. As the mathematical problem is well-posed on a microscale, this can be accomplished using, for example, the multiple scale approach shown in Chap. 11 ; however, the task requires massive computations and is therefore difficult to implement from the practical standpoint. Here, instead, we focus on a deterministic approach to the problem, where the geometry and spatial configuration of the particles comprising the included phase are given and the solution to the microscale problem is therefore sought analytically. As examples, we study the effective thermal conductivity of solid reinforced materials (Sect. 10.1), the effective viscosity of non-colloidal suspensions (Sect. 10.2), the effective permeability of porous materials (10.3) and the effective self- and gradient diffusivities of colloidal suspensions (Sect. 10.4). Then, in Sect. 10.5, an alternative dynamic definition of the transport coefficients is considered, which can also serve as a basis to determine the effective properties of complex systems.

  1. Mechanical Properties of Aerogels

    NASA Technical Reports Server (NTRS)

    Parmenter, Kelly E.; Milstein, Frederick

    1995-01-01

    Aerogels are extremely low density solids that are characterized by a high porosity and pore sizes on the order of nanometers. Their low thermal conductivity and sometimes transparent appearance make them desirable for applications such as insulation in cryogenic vessels and between double paned glass in solar architecture. An understanding of the mechanical properties of aerogels is necessary before aerogels can be used in load bearing applications. In the present study, the mechanical behavior of various types of fiber-reinforced silica aerogels was investigated with hardness, compression, tension and shear tests. Particular attention was paid to the effects of processing parameters, testing conditions, storage environment, and age on the aerogels' mechanical response. The results indicate that the addition of fibers to the aerogel matrix generally resulted in softer, weaker materials with smaller elastic moduli. Furthermore, the testing environment significantly affected compression results. Tests in ethanol show an appreciable amount of scatter, and are not consistent with results for tests in air. In fact, the compression specimens appeared to crack and begin to dissolve upon exposure to the ethanol solution. This is consistent with the inherent hydrophobic nature of these aerogels. In addition, the aging process affected the aerogels' mechanical behavior by increasing their compressive strength and elastic moduli while decreasing their strain at fracture. However, desiccation of the specimens did not appreciably affect the mechanical properties, even though it reduced the aerogel density by removing trapped moisture. Finally, tension and shear test results indicate that the shear strength of the aerogels exceeds the tensile strength. This is consistent with the response of brittle materials. Future work should concentrate on mechanical testing at cryogenic temperatures, and should involve more extensive tensile tests. Moreover, before the mechanical response

  2. Spectrophotometric properties of Mercury

    NASA Astrophysics Data System (ADS)

    Domingue, D.; Vilas, F.; Holsclaw, G. M.; Warell, J.; Izenberg, N. R.; Murchie, S. L.; Denevi, B. W.; Blewett, D. T.; McClintock, W. E.

    2009-12-01

    The MEcury Surface, Space ENvironment, GEochemistry, and Ranging (MESSENGER) spacecraft obtained photometric observations of Mercury during three flybys (14 January 2008, 6 October 2008, 29 September 2009) using both the Mercury Dual Imaging System (MDIS) and the Mercury Atmospheric and Surface Composition Spectrometer (MASCS). The MDIS measurements include disk-integrated phase-curve observations taken in 11 narrow-band filters ranging from 430 to 1010 nm. The MDIS measurements also include disk-resolved photometric observations taken during the first flyby of a 200-km by 400-km region (centered on 1.7°S, 123.5°E, and spanning 5.5° of latitude and 10° of longitude) over a phase-angle range between 51° and 120°. The MASCS measurements include disk-integrated phase-curve observations taken from 300 to 1450 nm at a spectral resolution of 2.5 nm. During the third flyby, targeted type regions were observed at multiple viewing geometries, providing disk-resolved photometric measurements at high spectral resolution. Comparisons with ground-based observations show that the phase behavior determined by analysis of the MDIS and MASCS observations is consistent with previous studies. Reflectance measurements from the first two flybys show no definitive absorption features and a distinctive steep, or “red,” slope with increasing wavelength common to space-weathered rocky surfaces. The MDIS spectra show evidence of phase reddening (increased spectral slope with increasing phase angle), similar to that observed on the Moon. The derived photometric properties indicate a more compact, less porous regolith that is smoother on meter scales than regolith on the Moon or S-type asteroids. Although Mercury is darker than the average lunar nearside, the calculated geometric albedo (reflectance at zero phase) is higher for Mercury than the Moon, implying a greater opposition-surge magnitude. The geometric albedo, coupled with the lower reflectance of immature (younger) units on

  3. Joint Commission on rock properties

    NASA Astrophysics Data System (ADS)

    A joint commission on Rock Properties for Petroleum Engineers (RPPE) has been established by the International Society of Rock Mechanics and the Society of Petroleum Engineers to set up data banks on the properties of sedimentary rocks encountered during drilling. Computer-based data banks of complete rock properties will be organized for sandstones (GRESA), shales (ARSHA) and carbonates (CARCA). The commission hopes to access data sources from members of the commission, private companies and the public domain.

  4. Thermodynamic Properties of Supported Catalysts

    SciTech Connect

    Gorte, Raymond J.

    2014-03-26

    The goals of this work were to develop Coulometric Titration as a method for characterizing the thermodynamic redox properties of oxides and to apply this technique to the characterization of ceria- and vanadia-based catalysts. The redox properties of ceria and vanadia are a major part of what makes these materials catalytically active but their properties are also dependent on their structure and the presence of other oxides. Quantifying these properties through the measurement of oxidation energetics was the goal of this work.

  5. Material Properties of Titanium Diboride

    PubMed Central

    Munro, Ronald G.

    2000-01-01

    The physical, mechanical, and thermal properties of polycrystalline TiB2 are examined with an emphasis on the significant dependence of the properties on the density and grain size of the material specimens. Using trend analysis, property relations, and interpolation methods, a coherent set of trend values for the properties of polycrystalline TiB2 is determined for a mass fraction of TiB2 ⩾ 98 %, a density of (4.5±0.1) g/cm3, and a mean grain size of (9±1) µm. PMID:27551633

  6. Beneficial Properties of Probiotics

    PubMed Central

    Shi, Lye Huey; Balakrishnan, Kunasundari; Thiagarajah, Kokila; Mohd Ismail, Nor Ismaliza; Yin, Ooi Shao

    2016-01-01

    Probiotics are live microorganisms that can be found in fermented foods and cultured milk, and are widely used for the preparation of infant food. They are well-known as “health friendly bacteria”, which exhibit various health beneficial properties such as prevention of bowel diseases, improving the immune system, for lactose intolerance and intestinal microbial balance, exhibiting antihypercholesterolemic and antihypertensive effects, alleviation of postmenopausal disorders, and reducing traveller’s diarrhoea. Recent studies have also been focused on their uses in treating skin and oral diseases. In addition to that, modulation of the gut-brain by probiotics has been suggested as a novel therapeutic solution for anxiety and depression. Thus, this review discusses on the current probiotics-based products in Malaysia, criteria for selection of probiotics, and evidences obtained from past studies on how probiotics have been used in preventing intestinal disorders via improving the immune system, acting as an antihypercholesterolemic factor, improving oral and dermal health, and performing as anti-anxiety and anti-depressive agents.

  7. Superparamagnetic Properties of Hemozoin

    NASA Astrophysics Data System (ADS)

    Inyushin, M.; Kucheryavih, Yu.; Kucheryavih, L.; Rojas, L.; Khmelinskii, I.; Makarov, V.

    2016-05-01

    We report that hemozoin nanocrystals demonstrate superparamagnetic properties, with direct measurements of the synthetic hemozoin magnetization. The results show that the magnetic permeability constant varies from μ = 4585 (at -20 °C) to 3843 (+20 °C), with the values corresponding to a superparamagnetic system. Similar results were obtained from the analysis of the diffusion separation of natural hemozoin nanocrystals in the magnetic field gradient, with μ = 6783 exceeding the value obtained in direct measurements by the factor of 1.8. This difference is interpreted in terms of structural differences between the synthetic and natural hemozoin. The ab initio analysis of the hemozoin elementary cell showed that the Fe3+ ion is in the high-spin state (S = 5/2), while the exchange interaction between Fe3+ electron-spin states was much stronger than kBT at room temperature. Thus, the spin dynamics of the neighboring Fe3+ ions are strongly correlated, lending support to the superparamagnetism.

  8. Thermotropic properties of phosphatidylethanols.

    PubMed Central

    Bondar, O P; Rowe, E S

    1996-01-01

    Phosphatidylethanol is formed when ethanol substitutes in the transphosphatidylation reaction catalyzed by phospholipase D. The structural and thermotropic properties of dipalmitoylphosphatidylethanol and dimyristoylphosphatidylethanol have been studied using differential scanning calorimetry, fluorescence spectroscopy, and 31P nuclear magnetic resonance. These lipids exist in a bilayer phase with no indication of nonbilayer phase formation, as shown by 31P nuclear magnetic resonance. It was found that the phase behavior of these phospholipids before and during the main chain melting transition is different in 50 mM Tris buffer compared to salt solutions. The phase transition behavior and the 6-propionyl-2-(dimethylamino)naphthalene (Prodan) fluorescence spectra for both lipids are consistent with the formation of the interdigitated gel phase under certain conditions. Both lipids become interdigitated in Tris-HCl, and ethanol enhances the formation of this phase. Comparative studies of the 6-propionyl-2-(dimethylamino)naphthalene spectra in dipalmitoylphosphatidylglycerol, dielaidoylphosphatidylethanolamine, and dipalmitoylphosphatidylcholine further elucidate the value and limitations of this probe as a diagnostic tool for lipid structure. PMID:8874018

  9. Planetary Ices Attenuation Properties

    NASA Astrophysics Data System (ADS)

    McCarthy, Christine; Castillo-Rogez, Julie C.

    In this chapter, we review the topic of energy dissipation in the context of icy satellites experiencing tidal forcing. We describe the physics of mechanical dissipation, also known as attenuation, in polycrystalline ice and discuss the history of laboratory methods used to measure and understand it. Because many factors - such as microstructure, composition and defect state - can influence rheological behavior, we review what is known about the mechanisms responsible for attenuation in ice and what can be inferred from the properties of rocks, metals and ceramics. Since attenuation measured in the laboratory must be carefully scaled to geologic time and to planetary conditions in order to provide realistic extrapolation, we discuss various mechanical models that have been used, with varying degrees of success, to describe attenuation as a function of forcing frequency and temperature. We review the literature in which these models have been used to describe dissipation in the moons of Jupiter and Saturn. Finally, we address gaps in our present knowledge of planetary ice attenuation and provide suggestions for future inquiry.

  10. Fundamental Properties of Salts

    SciTech Connect

    Toni Y Gutknecht; Guy L Fredrickson

    2012-11-01

    Thermal properties of molten salt systems are of interest to electrorefining operations, pertaining to both the Fuel Cycle Research & Development Program (FCR&D) and Spent Fuel Treatment Mission, currently being pursued by the Department of Energy (DOE). The phase stability of molten salts in an electrorefiner may be adversely impacted by the build-up of fission products in the electrolyte. Potential situations that need to be avoided, during electrorefining operations, include (i) fissile elements build up in the salt that might approach the criticality limits specified for the vessel, (ii) electrolyte freezing at the operating temperature of the electrorefiner due to changes in the liquidus temperature, and (iii) phase separation (non-homogenous solution). The stability (and homogeneity) of the phases can be monitored by studying the thermal characteristics of the molten salts as a function of impurity concentration. Simulated salt compositions consisting of the selected rare earth and alkaline earth chlorides, with a eutectic mixture of LiCl-KCl as the carrier electrolyte, were studied to determine the melting points (thermal characteristics) using a Differential Scanning Calorimeter (DSC). The experimental data were used to model the liquidus temperature. On the basis of the this data, it became possible to predict a spent fuel treatment processing scenario under which electrorefining could no longer be performed as a result of increasing liquidus temperatures of the electrolyte.

  11. Beneficial Properties of Probiotics

    PubMed Central

    Shi, Lye Huey; Balakrishnan, Kunasundari; Thiagarajah, Kokila; Mohd Ismail, Nor Ismaliza; Yin, Ooi Shao

    2016-01-01

    Probiotics are live microorganisms that can be found in fermented foods and cultured milk, and are widely used for the preparation of infant food. They are well-known as “health friendly bacteria”, which exhibit various health beneficial properties such as prevention of bowel diseases, improving the immune system, for lactose intolerance and intestinal microbial balance, exhibiting antihypercholesterolemic and antihypertensive effects, alleviation of postmenopausal disorders, and reducing traveller’s diarrhoea. Recent studies have also been focused on their uses in treating skin and oral diseases. In addition to that, modulation of the gut-brain by probiotics has been suggested as a novel therapeutic solution for anxiety and depression. Thus, this review discusses on the current probiotics-based products in Malaysia, criteria for selection of probiotics, and evidences obtained from past studies on how probiotics have been used in preventing intestinal disorders via improving the immune system, acting as an antihypercholesterolemic factor, improving oral and dermal health, and performing as anti-anxiety and anti-depressive agents. PMID:27688852

  12. Dynamic oligomeric properties.

    PubMed

    Seidler, Norbert W

    2013-01-01

    This chapter provides a foundation for further research into the relationship between dynamic oligomeric properties and functional diversity. The structural basis that underlies the conformational sub-states of the GAPDH oligomer is discussed. The issue of protein stability is given a thorough analysis, since it is well-established that the primary strategy for protein oligomerization is to stabilize conformation. Several factors that affect oligomerization are described, including chemical modification by synthetic reagents. The effects of native substrates and coenzymes are also discussed. The curious feature of chloride ions having a de-stabilizing effect on native GAPDH structure is described. Additionally, the role of adenine dinucleotides in tetramer-dimer equilibrium dynamics is suggested to be a major part of the physiological regulation of GAPDH structure and function. This chapter also contends that a vast amount of useful information can come from comparative analyses of diverse species, particularly regarding protein stability and subunit-subunit interaction. Lastly, the concept of domain exchange is introduced as a means of understanding the stabilization of dynamic oligomers, suggesting that inter-subunit contacts may also be a way of masking docking sites to other proteins.

  13. The Properties of Light

    NASA Astrophysics Data System (ADS)

    Haglund, Richard F.

    The mystery of light has formed the core of creation stories in every culture, and attracted the earnest attentions of philosophers since at least the fifth century BCE. Their questions have ranged from how and what we see, to the interaction of light with material bodies, and finally to the nature of light itself. This chapter begins with a brief intellectual history of light from ancient Greece to the end of the 19th century. After introducing the physical parameterization of light in terms of standard units, three concepts of light are introduced: light as a wave, light as a quantum particle, and light as a quantum field. After highlighting the distinctive characteristics of light beams from various sources - thermal radiation, luminescence from atoms and molecules, and synchrotron light sources - the distinctive physical characteristics of light beams are examined in some detail. The chapter concludes with a survey of the statistical and quantum-mechanical properties of light beams. In the appropriate limits, this treatment not only recovers the classical description of light waves and the semiclassical view of light as a stream of quanta, but also forms a consistent description of quantum phenomena - such as interference phenomena generated by single photons - that have no classical analogs.

  14. Beneficial Properties of Probiotics.

    PubMed

    Shi, Lye Huey; Balakrishnan, Kunasundari; Thiagarajah, Kokila; Mohd Ismail, Nor Ismaliza; Yin, Ooi Shao

    2016-08-01

    Probiotics are live microorganisms that can be found in fermented foods and cultured milk, and are widely used for the preparation of infant food. They are well-known as "health friendly bacteria", which exhibit various health beneficial properties such as prevention of bowel diseases, improving the immune system, for lactose intolerance and intestinal microbial balance, exhibiting antihypercholesterolemic and antihypertensive effects, alleviation of postmenopausal disorders, and reducing traveller's diarrhoea. Recent studies have also been focused on their uses in treating skin and oral diseases. In addition to that, modulation of the gut-brain by probiotics has been suggested as a novel therapeutic solution for anxiety and depression. Thus, this review discusses on the current probiotics-based products in Malaysia, criteria for selection of probiotics, and evidences obtained from past studies on how probiotics have been used in preventing intestinal disorders via improving the immune system, acting as an antihypercholesterolemic factor, improving oral and dermal health, and performing as anti-anxiety and anti-depressive agents. PMID:27688852

  15. Properties of Liquid Plutonium

    SciTech Connect

    Freibert, Franz J.; Mitchell, Jeremy N.; Schwartz, Daniel S.; Saleh, Tarik A.; Migliori, Albert

    2012-08-02

    Unalloyed polycrystalline Pu displays extreme thermal expansion behavior, i.e., {alpha} {yields} {beta} {yields} {gamma} {yields} {delta} increases by 25% in volume and {delta} {yields} {var_epsilon} {yields} liquid decreases by 4.5% in volume. Thus, making it difficult to measure density into the liquid state. Dilatometer outfitted with CaF molten metal cell offers a proven capability to measure thermal expansion in molten metals, but has yet to be proven for Pu. Historic data from the liquid nuclear fuels program will prove extremely useful as a guide to future measurements. 3.3at% Ga changes Pu molten metal properties: 50% increase in viscosity and {approx}3% decrease in density. Fe may decrease the density by a small amount assuming an averaging of densities for Pu-Ga and Pu-Fe liquids. More recent Boivineau (2009) work needs some interpretation, but technique is being employed in (U,Pu)O{sub 2} nuclear fuels program (Pu Futures, 2012).

  16. Properties of food webs

    SciTech Connect

    Pimm, S.L.

    1980-04-01

    On the assumption that systems of interacting species, when perturbed from equilibrium, should return to equilibrium quickly, one can predict four properties of food webs: (1) food chains should be short, (2) species feeding on more than one trophic level (omnivores) should be rare, (3) those species that do feed on more than one trophic level should do so by feeding on species in adjacent trophic levels, and (4) host-parasitoid systems are likely to be exceptions to (1)-(3) when interaction coefficients permit greater trophic complexity. By generating random, model food webs (with many features identical to webs described from a variety of marine, freshwater, and terrestrial systems), it is possible to generate expected values for the number of trophic levels and the degree of omnivory within webs. When compared with these random webs, real world webs are shown to have fewer trophic levels, less omnivory, and very few omnivores feeding on nonadjacent trophic levels. Insect webs are shown to have a greater degree of omnivory than other webs. The confirmation of all these predictions from stability analyses suggests that system stability places necessary, though not sufficient, limitations on the possible shapes of food webs.

  17. Antioxidant properties of Ambroxol.

    PubMed

    Nowak, D; Antczak, A; Król, M; Bialasiewicz, P; Pietras, T

    1994-04-01

    We tested whether Ambroxol, a drug which stimulates the release of surfactant by pneumocytes type II, may also possess antioxidant properties. To assess the reactivity of Ambroxol with reactive oxygen species, we analysed its ability to decompose hydrogen peroxide (H2O2) and to inhibit the superoxide (O2.-)-dependent autooxidation of pyrogallol, hydroxyl radical (.OH)-mediated deoxyribose oxidation, and hypochlorous acid (HClO-induced chlorination of monochlorodimedon. Ambroxol was found to be a sufficient scavenger of HClO and .OH and also revealed the capacity to decompose H2O2. At concentrations of 25 and 70 microM, it inhibited HClO-induced chlorination of monochlorodimedon by 22 +/- 13 and 59 +/- 14%, respectively. Similarly, at concentrations of 1, 2, and 10 mM, Ambroxol decreased .OH-mediated deoxyribose oxidation by 47 +/- 11, 75 +/- 9, and 89 +/- 4%. In addition, at concentrations of 1 to 5 mM, it completely protected linoleic acid from .OH-induced peroxidative damage. Ambroxol had a weak effect on O2.(-)-dependent autooxidation of pyrogallol. Our results indicate that Ambroxol has antioxidant activity, which may have clinical significance in protecting lung tissue from oxidant-induced injury. PMID:8005537

  18. Magnetic Properties of Nanostructures

    NASA Astrophysics Data System (ADS)

    Ciraldo, John

    2007-10-01

    The recent development of the superlattice nanowire pattern transfer (SNAP) technique has enabled the fabrication of complex molecular-electronic circuits at unprecedented densities. In this project, we explore the possibility of extending this technique to generate comparably dense arrays of nanoscale giant magnetoresistive (GMR) and tunneling magnetoresistive (TMR) devices. My primary contribution to this project has focused on using a vibrating sample magnetometer (VSM), as well as a superconducting interference device (SQUID) magnetometer to monitor the magnetic properties of the devices as they are processed from thin 2D films into nanostructure arrays. This investigation allows us to investigate both fundamental and technological aspects of the nanopatterning process. For example, the effects of changing surface to volume ratios on the ferromagnetic exchange interaction and the role of various patterning techniques in determining surface chemistry and oxidation of the final nanostructures, respectively. Additionally I have worked on simulations of the materials using NIST's OOMF program, allowing me to compare actual results with theoretical expectations. I am also designing a magneto-optical Kerr effect (MOKE) detector, which will allow faster approximations of magnetic behavior.

  19. Beneficial Properties of Probiotics.

    PubMed

    Shi, Lye Huey; Balakrishnan, Kunasundari; Thiagarajah, Kokila; Mohd Ismail, Nor Ismaliza; Yin, Ooi Shao

    2016-08-01

    Probiotics are live microorganisms that can be found in fermented foods and cultured milk, and are widely used for the preparation of infant food. They are well-known as "health friendly bacteria", which exhibit various health beneficial properties such as prevention of bowel diseases, improving the immune system, for lactose intolerance and intestinal microbial balance, exhibiting antihypercholesterolemic and antihypertensive effects, alleviation of postmenopausal disorders, and reducing traveller's diarrhoea. Recent studies have also been focused on their uses in treating skin and oral diseases. In addition to that, modulation of the gut-brain by probiotics has been suggested as a novel therapeutic solution for anxiety and depression. Thus, this review discusses on the current probiotics-based products in Malaysia, criteria for selection of probiotics, and evidences obtained from past studies on how probiotics have been used in preventing intestinal disorders via improving the immune system, acting as an antihypercholesterolemic factor, improving oral and dermal health, and performing as anti-anxiety and anti-depressive agents.

  20. Exploring cardiac biophysical properties

    PubMed Central

    Mou, Younss Ait; Bollensdorff, Christian; Cazorla, Olivier; Magdi, Yacoub; de Tombe, Pieter P.

    2015-01-01

    The heart is subject to multiple sources of stress. To maintain its normal function, and successfully overcome these stresses, heart muscle is equipped with fine-tuned regulatory mechanisms. Some of these mechanisms are inherent within the myocardium itself and are known as intrinsic mechanisms. Over a century ago, Otto Frank and Ernest Starling described an intrinsic mechanism by which the heart, even ex vivo, regulates its function on a beat-to-beat basis. According to this phenomenon, the higher the ventricular filling is, the bigger the stroke volume. Thus, the Frank-Starling law establishes a direct relationship between the diastolic and systolic function of the heart. To observe this biophysical phenomenon and to investigate it, technologic development has been a pre-requisite to scientific knowledge. It allowed for example to observe, at the cellular level, a Frank-Starling like mechanism and has been termed: Length Dependent Activation (LDA). In this review, we summarize some experimental systems that have been developed and are currently still in use to investigate cardiac biophysical properties from the whole heart down to the single myofibril. As a scientific support, investigation of the Frank-Starling mechanism will be used as a case study. PMID:26779498

  1. Superparamagnetic Properties of Hemozoin

    PubMed Central

    Inyushin, M.; Kucheryavih, Yu.; Kucheryavih, L.; Rojas, L.; Khmelinskii, I.; Makarov, V.

    2016-01-01

    We report that hemozoin nanocrystals demonstrate superparamagnetic properties, with direct measurements of the synthetic hemozoin magnetization. The results show that the magnetic permeability constant varies from μ = 4585 (at −20 °C) to 3843 (+20 °C), with the values corresponding to a superparamagnetic system. Similar results were obtained from the analysis of the diffusion separation of natural hemozoin nanocrystals in the magnetic field gradient, with μ = 6783 exceeding the value obtained in direct measurements by the factor of 1.8. This difference is interpreted in terms of structural differences between the synthetic and natural hemozoin. The ab initio analysis of the hemozoin elementary cell showed that the Fe3+ ion is in the high-spin state (S = 5/2), while the exchange interaction between Fe3+ electron-spin states was much stronger than kBT at room temperature. Thus, the spin dynamics of the neighboring Fe3+ ions are strongly correlated, lending support to the superparamagnetism. PMID:27188748

  2. Kinetic properties of cyanase.

    PubMed

    Anderson, P M; Little, R M

    1986-04-01

    Cyanase is an inducible enzyme in Escherichia coli that catalyzes the hydrolysis of cyanate. Bicarbonate is required for activity, perhaps as a substrate, and the initial product of the reaction is carbamate, which spontaneously breaks down to ammonia and bicarbonate [Anderson, P. M. (1980) Biochemistry 19, 2882]. The purpose of this study was to characterize the kinetic properties of cyanase. Initial velocity studies showed that both cyanate and bicarbonate act as competitive substrate inhibitors. A number of monovalent anions act as inhibitors. Azide and acetate appear to act as competitive inhibitors with respect to cyanate and bicarbonate, respectively. Chloride, bromide, nitrate, nitrite, and formate also inhibit, apparently as the result of binding at either substrate site. Malonate and several other dicarboxylic dianions at very low concentrations display "slow-binding", reversible inhibition which can be prevented by saturating concentrations of either substrate. The results are consistent with a rapid equilibrium random mechanism in which bicarbonate acts as a substrate, bicarbonate and cyanate bind at adjacent anion-binding sites, and both substrates can bind at the other substrate anion binding site to give a dead-end complex.

  3. 31 CFR 536.310 - Property; property interest.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... 31 Money and Finance:Treasury 3 2014-07-01 2014-07-01 false Property; property interest. 536.310 Section 536.310 Money and Finance: Treasury Regulations Relating to Money and Finance (Continued) OFFICE OF FOREIGN ASSETS CONTROL, DEPARTMENT OF THE TREASURY NARCOTICS TRAFFICKING SANCTIONS...

  4. 31 CFR 536.310 - Property; property interest.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... 31 Money and Finance:Treasury 3 2012-07-01 2012-07-01 false Property; property interest. 536.310 Section 536.310 Money and Finance: Treasury Regulations Relating to Money and Finance (Continued) OFFICE OF FOREIGN ASSETS CONTROL, DEPARTMENT OF THE TREASURY NARCOTICS TRAFFICKING SANCTIONS...

  5. 31 CFR 536.310 - Property; property interest.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 31 Money and Finance: Treasury 3 2010-07-01 2010-07-01 false Property; property interest. 536.310 Section 536.310 Money and Finance: Treasury Regulations Relating to Money and Finance (Continued) OFFICE OF FOREIGN ASSETS CONTROL, DEPARTMENT OF THE TREASURY NARCOTICS TRAFFICKING SANCTIONS...

  6. 31 CFR 536.310 - Property; property interest.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... 31 Money and Finance:Treasury 3 2011-07-01 2011-07-01 false Property; property interest. 536.310 Section 536.310 Money and Finance: Treasury Regulations Relating to Money and Finance (Continued) OFFICE OF FOREIGN ASSETS CONTROL, DEPARTMENT OF THE TREASURY NARCOTICS TRAFFICKING SANCTIONS...

  7. 31 CFR 536.310 - Property; property interest.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... 31 Money and Finance:Treasury 3 2013-07-01 2013-07-01 false Property; property interest. 536.310 Section 536.310 Money and Finance: Treasury Regulations Relating to Money and Finance (Continued) OFFICE OF FOREIGN ASSETS CONTROL, DEPARTMENT OF THE TREASURY NARCOTICS TRAFFICKING SANCTIONS...

  8. 31 CFR 589.308 - Property; property interest.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... 31 Money and Finance:Treasury 3 2014-07-01 2014-07-01 false Property; property interest. 589.308 Section 589.308 Money and Finance: Treasury Regulations Relating to Money and Finance (Continued) OFFICE OF FOREIGN ASSETS CONTROL, DEPARTMENT OF THE TREASURY UKRAINE RELATED SANCTIONS REGULATIONS...

  9. 31 CFR 551.307 - Property; property interest.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 31 Money and Finance: Treasury 3 2010-07-01 2010-07-01 false Property; property interest. 551.307 Section 551.307 Money and Finance: Treasury Regulations Relating to Money and Finance (Continued) OFFICE OF FOREIGN ASSETS CONTROL, DEPARTMENT OF THE TREASURY SOMALIA SANCTIONS REGULATIONS...

  10. 31 CFR 551.307 - Property; property interest.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... 31 Money and Finance:Treasury 3 2014-07-01 2014-07-01 false Property; property interest. 551.307 Section 551.307 Money and Finance: Treasury Regulations Relating to Money and Finance (Continued) OFFICE OF FOREIGN ASSETS CONTROL, DEPARTMENT OF THE TREASURY SOMALIA SANCTIONS REGULATIONS...

  11. 31 CFR 551.307 - Property; property interest.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... 31 Money and Finance:Treasury 3 2012-07-01 2012-07-01 false Property; property interest. 551.307 Section 551.307 Money and Finance: Treasury Regulations Relating to Money and Finance (Continued) OFFICE OF FOREIGN ASSETS CONTROL, DEPARTMENT OF THE TREASURY SOMALIA SANCTIONS REGULATIONS...

  12. 31 CFR 548.308 - Property; property interest.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... 31 Money and Finance:Treasury 3 2012-07-01 2012-07-01 false Property; property interest. 548.308 Section 548.308 Money and Finance: Treasury Regulations Relating to Money and Finance (Continued) OFFICE OF FOREIGN ASSETS CONTROL, DEPARTMENT OF THE TREASURY BELARUS SANCTIONS REGULATIONS...

  13. 31 CFR 548.308 - Property; property interest.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... 31 Money and Finance:Treasury 3 2014-07-01 2014-07-01 false Property; property interest. 548.308 Section 548.308 Money and Finance: Treasury Regulations Relating to Money and Finance (Continued) OFFICE OF FOREIGN ASSETS CONTROL, DEPARTMENT OF THE TREASURY BELARUS SANCTIONS REGULATIONS...

  14. 31 CFR 548.308 - Property; property interest.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... 31 Money and Finance:Treasury 3 2011-07-01 2011-07-01 false Property; property interest. 548.308 Section 548.308 Money and Finance: Treasury Regulations Relating to Money and Finance (Continued) OFFICE OF FOREIGN ASSETS CONTROL, DEPARTMENT OF THE TREASURY BELARUS SANCTIONS REGULATIONS...

  15. 31 CFR 548.308 - Property; property interest.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 31 Money and Finance: Treasury 3 2010-07-01 2010-07-01 false Property; property interest. 548.308 Section 548.308 Money and Finance: Treasury Regulations Relating to Money and Finance (Continued) OFFICE OF FOREIGN ASSETS CONTROL, DEPARTMENT OF THE TREASURY BELARUS SANCTIONS REGULATIONS...

  16. 31 CFR 548.308 - Property; property interest.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... 31 Money and Finance:Treasury 3 2013-07-01 2013-07-01 false Property; property interest. 548.308 Section 548.308 Money and Finance: Treasury Regulations Relating to Money and Finance (Continued) OFFICE OF FOREIGN ASSETS CONTROL, DEPARTMENT OF THE TREASURY BELARUS SANCTIONS REGULATIONS...

  17. 31 CFR 510.307 - Property; property interest.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... 31 Money and Finance:Treasury 3 2011-07-01 2011-07-01 false Property; property interest. 510.307 Section 510.307 Money and Finance: Treasury Regulations Relating to Money and Finance (Continued) OFFICE OF FOREIGN ASSETS CONTROL, DEPARTMENT OF THE TREASURY NORTH KOREA SANCTIONS REGULATIONS...

  18. 31 CFR 510.307 - Property; property interest.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... 31 Money and Finance:Treasury 3 2014-07-01 2014-07-01 false Property; property interest. 510.307 Section 510.307 Money and Finance: Treasury Regulations Relating to Money and Finance (Continued) OFFICE OF FOREIGN ASSETS CONTROL, DEPARTMENT OF THE TREASURY NORTH KOREA SANCTIONS REGULATIONS...

  19. 31 CFR 510.307 - Property; property interest.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... 31 Money and Finance:Treasury 3 2013-07-01 2013-07-01 false Property; property interest. 510.307 Section 510.307 Money and Finance: Treasury Regulations Relating to Money and Finance (Continued) OFFICE OF FOREIGN ASSETS CONTROL, DEPARTMENT OF THE TREASURY NORTH KOREA SANCTIONS REGULATIONS...

  20. 31 CFR 510.307 - Property; property interest.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... 31 Money and Finance:Treasury 3 2012-07-01 2012-07-01 false Property; property interest. 510.307 Section 510.307 Money and Finance: Treasury Regulations Relating to Money and Finance (Continued) OFFICE OF FOREIGN ASSETS CONTROL, DEPARTMENT OF THE TREASURY NORTH KOREA SANCTIONS REGULATIONS...

  1. 31 CFR 545.309 - Property; property interest.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 31 Money and Finance: Treasury 3 2010-07-01 2010-07-01 false Property; property interest. 545.309 Section 545.309 Money and Finance: Treasury Regulations Relating to Money and Finance (Continued) OFFICE OF FOREIGN ASSETS CONTROL, DEPARTMENT OF THE TREASURY TALIBAN (AFGHANISTAN) SANCTIONS...

  2. 31 CFR 594.309 - Property; property interest.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... 31 Money and Finance:Treasury 3 2012-07-01 2012-07-01 false Property; property interest. 594.309 Section 594.309 Money and Finance: Treasury Regulations Relating to Money and Finance (Continued) OFFICE OF FOREIGN ASSETS CONTROL, DEPARTMENT OF THE TREASURY GLOBAL TERRORISM SANCTIONS REGULATIONS...

  3. 31 CFR 576.312 - Property; property interest.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... 31 Money and Finance:Treasury 3 2012-07-01 2012-07-01 false Property; property interest. 576.312 Section 576.312 Money and Finance: Treasury Regulations Relating to Money and Finance (Continued) OFFICE OF FOREIGN ASSETS CONTROL, DEPARTMENT OF THE TREASURY IRAQ STABILIZATION AND INSURGENCY...

  4. 31 CFR 576.312 - Property; property interest.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... 31 Money and Finance:Treasury 3 2014-07-01 2014-07-01 false Property; property interest. 576.312 Section 576.312 Money and Finance: Treasury Regulations Relating to Money and Finance (Continued) OFFICE OF FOREIGN ASSETS CONTROL, DEPARTMENT OF THE TREASURY IRAQ STABILIZATION AND INSURGENCY...

  5. Nuclear properties of mendelevium

    SciTech Connect

    Hoffman, D.C.

    1980-01-01

    The heavy Fm isotopes (/sup 258/Fm and /sup 259/Fm) so far appear to be unique in exhibiting very symmetric mass distributions and anomolously high fragment total kinetic energies. This effect appears to be associated with the Z = 100 proton configuration of the fissioning nuclide which can fission symmetrically into two fragments having the Z = 50 closed-proton shell configuration; /sup 256/Cf which has the same number of neutrons but only 98 protons does not exhibit these fission properties. Furthermore, /sup 259/Md, also having 158 neutrons but with 101 protons, fissions symmetrically but with a normal total kinetic energy. However, the total kinetic-energy distribution is extremely broad, indicating a range of fragment shapes at scission from spherical to highly distorted. It is extremely important to check more nuclides with Z greater than 100 and N greater than or equal to 158 to check the relative importance of the fragement proton and neutron shells. New methods are needed for measurements of half lives of ms or less and for providing positive identification of the Z and A of the fissioning species. Recent experiments indicate that /sup 259/Fm is produced with a 10 to 15 nb cross section in bombardments of /sup 248/Cm with /sup 18/O and that therefore extreme caution must be exercised in making assignments. However, transfer or deep inelastic reactions of this kind would appear to offer a good possibility for making the heavier isotopes of Md or Lr for study by bombarding Bk or Es targets with /sup 18/O.

  6. REACTOR GROUT THERMAL PROPERTIES

    SciTech Connect

    Steimke, J.; Qureshi, Z.; Restivo, M.; Guerrero, H.

    2011-01-28

    Savannah River Site has five dormant nuclear production reactors. Long term disposition will require filling some reactor buildings with grout up to ground level. Portland cement based grout will be used to fill the buildings with the exception of some reactor tanks. Some reactor tanks contain significant quantities of aluminum which could react with Portland cement based grout to form hydrogen. Hydrogen production is a safety concern and gas generation could also compromise the structural integrity of the grout pour. Therefore, it was necessary to develop a non-Portland cement grout to fill reactors that contain significant quantities of aluminum. Grouts generate heat when they set, so the potential exists for large temperature increases in a large pour, which could compromise the integrity of the pour. The primary purpose of the testing reported here was to measure heat of hydration, specific heat, thermal conductivity and density of various reactor grouts under consideration so that these properties could be used to model transient heat transfer for different pouring strategies. A secondary purpose was to make qualitative judgments of grout pourability and hardened strength. Some reactor grout formulations were unacceptable because they generated too much heat, or started setting too fast, or required too long to harden or were too weak. The formulation called 102H had the best combination of characteristics. It is a Calcium Alumino-Sulfate grout that contains Ciment Fondu (calcium aluminate cement), Plaster of Paris (calcium sulfate hemihydrate), sand, Class F fly ash, boric acid and small quantities of additives. This composition afforded about ten hours of working time. Heat release began at 12 hours and was complete by 24 hours. The adiabatic temperature rise was 54 C which was within specification. The final product was hard and displayed no visible segregation. The density and maximum particle size were within specification.

  7. Thermophysical Properties of Hydrocarbon Mixtures

    National Institute of Standards and Technology Data Gateway

    SRD 4 NIST Thermophysical Properties of Hydrocarbon Mixtures (PC database for purchase)   Interactive computer program for predicting thermodynamic and transport properties of pure fluids and fluid mixtures containing up to 20 components. The components are selected from a database of 196 components, mostly hydrocarbons.

  8. Hydraulic Properties of Unsaturated Soils

    Technology Transfer Automated Retrieval System (TEKTRAN)

    Many agrophysical applications require knowledge of the hydraulic properties of unsaturated soils. These properties reflect the ability of a soil to retain or transmit water and its dissolved constituents. The objective of this work was to develop an entry for the Encyclopedia of Agrophysics that w...

  9. ICT and Educational Property Management

    ERIC Educational Resources Information Center

    Desmarais, Gilbert

    2005-01-01

    An international PEB seminar on "Information and Communications Technology and Educational Property Management" was held in Montreal, Canada, from 31 October to 3 November 2004. The aim of this seminar was to examine how information and communications technology (ICT) can be incorporated into educational property management by investigating three…

  10. Microbial Properties Database Editor Tutorial

    EPA Science Inventory

    A Microbial Properties Database Editor (MPDBE) has been developed to help consolidate microbial-relevant data to populate a microbial database and support a database editor by which an authorized user can modify physico-microbial properties related to microbial indicators and pat...

  11. The Structures & Properties of Carbon

    ERIC Educational Resources Information Center

    Castellini, Olivia M.; Lisensky, George C.; Ehrlich, Jennifer; Zenner, Greta M.; Crone, Wendy C.

    2006-01-01

    The four main forms of carbon--diamond, graphite, buckyballs, and carbon nanotubes (CNTs)--are an excellent vehicle for teaching fundamental principles of chemical bonding, material structure, and properties. Carbon atoms form a variety of structures that are intrinsically connected to the properties they exhibit. Educators can take advantage of…

  12. Predicting various biodiesel fuel properties

    Technology Transfer Automated Retrieval System (TEKTRAN)

    Several essential fuel properties of biodiesel are largely determined by the properties of the fatty esters which are its main components. These include cetane number, kinematic viscosity, oxidative stability, and cold flow which are contained in almost all biodiesel standards but also other propert...

  13. 76 FR 50186 - Surplus Properties

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-08-12

    ... Department of the Army Surplus Properties AGENCY: Department of the Army, DoD. ACTION: Notice. SUMMARY: This amended notice provides information regarding the properties that have been determined surplus to the... Notice published in the Federal Register on August 7, 2009 (74 FR 39680). DATES: Effective August...

  14. Who Owns Faculty Intellectual Property?

    ERIC Educational Resources Information Center

    Distance Education Report, 2000

    2000-01-01

    Examines definitions of ownership relevant to faculty's intellectual property. Highlights exclusive rights that copyright owners hold under Section 106 of the 1976 Copyright Act. Notes university initiatives looking into the question of intellectual property. Provides examples of "significant" resources which in the case of public institutions are…

  15. Manufacturing tailored property ceramic composites

    SciTech Connect

    Ewsuk, K.G.; Harrison, L.W.

    1994-11-14

    Composite materials are desirable for many advanced engineering applications where the properties of a single phase material cannot meet all of the service requirements; however, existing process technology has limited the development and commercialization of composites. Lack of reproducible sintering to high density is one of the major obstacles to commercializing ceramic composites. Final-stage, non-reactive liquid phase sintering (NLPS) theory provides metrics for sinterability that can be used as guidelines to design and manufacture dense ceramic-filled-glass (CFG) composites. Additionally, within the constraints defined by the NLPS theory, sum-property models can be used to predict CFG composite properties, and to design composites with properties tailored to specific applications. By integrating composite process models with composite property models, processable, application-tailored CFG composites for microelectronics packaging have been designed and fabricated.

  16. Transport properties of uranium dioxide

    SciTech Connect

    Fink, J.K.; Chasanov, M.G.; Leibowitz, L.

    1981-04-01

    In order to provide reliable and consistent data on the thermophysical properties of reactor materials for reactor safety studies, this revision is prepared for the transport properties of the uranium dioxide portion of the fuel property section of the report Properties for LMFBR Safety Analysis. Since the original report was issued in 1976, measurements of thermal diffusivity and emissivity have been made. In addition to incorporating this new data, new equations have been derived to fit the thermal diffusivity and thermal conductivity data. This analysis is consistent with the analysis of enthalpy and heat capacity. A new form of equation for the emissivity is also given. The present report comprises the transport part of the UO/sub 2/ portion of section A of the planned complete revision of Properties for LMFBR Safety Analysis.

  17. Materials properties data base computerization

    NASA Technical Reports Server (NTRS)

    Baur, R. G.; Donthnier, M. L.; Moran, M. C.; Mortman, I.; Pinter, R. S.

    1984-01-01

    Material property data plays a key role in the design of jet engine components. Consistency, accuracy and efficient use of material property data is of prime importance to the engineering community. The system conception, development, implementation, and future plans for computer software that captures the Material Properties Handbook into a scientific data base are described. The engineering community is given access to raw data and property curves, display of multiple curves for material evaluation and selection, direct access by design analysis computer programs, display of the material specification, and a historical repository for the material evolution. The impact of this activity includes significant productivity gains and cost reductions; all users have access to the same information nd provides consistent, rapid response to the needs of the engineering community. Future plans include incorporating the materials properties data base into a network environment to access information from other data bases and download information to engineering work stations.

  18. Distinguishing internal property from external property in kidney transplantation.

    PubMed

    Prasad, G V Ramesh

    2016-08-01

    What determines the ownership of human body parts? In this paper, I argue that this question can be informed by an exploration of the cognitive distinction between property external to the human body such as houses, cars or land, and internal property such as organs that are located within anatomical body confines. Each type of property has distinct brain representations and possibly different effects on the sense of self. This distinction may help explain the divergence in post-donation outcomes seen in different kidney donor populations. Poor outcomes in some types of kidney donors may be due not only to a failure in their proper selection by standard medical testing or post-donation care but may also be a manifestation of differing effects on sense of self resulting from transfer of their internal property. Because a kidney is internal property, a hypothesis worth exploring is that those who experience good outcomes post-donation experience dopaminergic activation and a feeling of reward, while those experiencing bad outcomes are instead overcoming cortisol or adrenergic-based stress or fear responses without a corresponding feeling of reward, disrupting of their sense of self. Discussions about the rules for internal property transfer must be based not only on values and laws designed to govern external property but also on cognitive science-based facts, values and judgments that discussions of external property do not presently accommodate. Any future system of rules for governing organ distribution requires a framework different from that of external property to prevent harm to living kidney donors. PMID:27198733

  19. Dynamic Properties of Polyurea

    NASA Astrophysics Data System (ADS)

    Youssef, George H.

    The aim of this thesis was to understand the dynamic behavior of polyurea at rates of loading that is outside the reach of plate impact and split-Hopkinson bar experiments. This was motivated by the desire to design polyurea-based armors against hypervelocity impacts such as those arising from shaped charges and explosively formed projectiles with speeds in the range of 9,000 to 30,000 ft/s. By employing the laser-induced stress waves, the tensile strength and fracture energy of polyurea were measured at peak strain rate of 10 7s-1. Tensile strength of 93.1 ±5 MPa and fracture energy values of 6.75 (± 0.5) J/m2 were measured. It was also shown that the Time Temperature Superposition Principle holds for polyurea even at strain rates as high as 105s-1. This strain rate is two orders of magnitude higher than those reported recently by the Caltech group (Zhao, et al.). This important finding suggests that blast simulations of large-scale structures and those of armors involving polyurea can be based on constitutive data gathered under quasi-static conditions. This is quite powerful. With a view towards future reach, preliminary experiments were performed to inquire how polyurca behaves in the presence of other armor materials when subjected to impacts in the nanoseconds timeframe. That is, does it synergistically add its intrinsic impact-mitigating properties to other known defeat mechanisms? To this end, sections in which I to 2 mm thick polyurea layers were sandwiched between glass, acrylic, polyurethane, Al, Steel, and PMMA plates were subjected to laser-generated stress waves. The sections were evaluated based on the amplitude and time profile of the stress wave that exited the sections. Both metal plates resulted in a significant reduction in the transmitted stress wave amplitude. This was due to the large impedance mismatch between the polyurea and the metal which essentially resulted in trapping of the stress wave within the incident substrate. An unexpected

  20. Properties of Ising Networks

    NASA Astrophysics Data System (ADS)

    Zhang, Guihua

    1992-08-01

    -glass coupling distribution is transformed to the corresponding magnetization distribution, whose effect on thermodynamic properties is assessed. A gaussian coupling-fluctuation expansion diverges at sufficiently large fluctuation amplitude, suggesting the possibility of a phase transition.

  1. Analysis of Hydrologic Properties Data

    SciTech Connect

    L. Pan

    2004-10-04

    This analysis report describes the methods used to determine hydrologic properties based on the available field data from the unsaturated zone (UZ) at Yucca Mountain, Nevada. The technical scope, content, and management of this analysis report are described in the planning document ''Technical Work Plan for: Unsaturated Zone Flow Analysis and Model Report Integration'' (BSC 2004 [DIRS 169654], Sections 2, 4, and 8). Fracture and matrix properties are developed by analyzing available survey data from the Exploratory Studies Facility (ESF), the Enhanced Characterization of Repository Block (ECRB) Cross-Drift, and/or boreholes; air-injection testing data from surface boreholes and from boreholes in the ESF; and data from laboratory testing of core samples. In addition, the report ''Geologic Framework Model'' (GFM2000) (BSC 2004 [DIRS 170029]) also serves as a source report by providing the geological framework model of the site. This report is a revision of the model report under the same title (BSC 2003 [DIRS 161773]), which in turn superceded the analysis report under the same title. The principal purpose of this work is to provide representative uncalibrated estimates of fracture and matrix properties for use in the model report Calibrated Properties Model. The term ''uncalibrated'' is used to distinguish the properties or parameters estimated in this report from those obtained from the inversion modeling used in ''Calibrated Properties Model''. The present work also provides fracture geometry properties for generating dual-permeability grids as documented in the scientific analyses report, ''Development of Numerical Grids for UZ Flow and Transport Modeling''.

  2. Program Supplies Properties Of Parahydrogen

    NASA Technical Reports Server (NTRS)

    Walton, J. T.

    1994-01-01

    National Bureau of Standards Parahydrogen Properties Database (NBS+_PH2) computer program developed to provide selected thermal and transport properties of parahydrogen matching 1981 parahydrogen data of National Bureau of Standards (now called National Institute of Standards and Technology). Created to be linked with propulsion-simulation programs, which require mathematical model of parahydrogen covering wide range of pressures and temperatures. Provides data on parahydrogen for pressures from 10 kPa to 16 MPa and temperatures from 20 to 104 K. Provides following properties: density, thermal conductivity, viscosity, Prandtl number, enthalpy, specific heat, and speed of sound. Written in FORTRAN 77.

  3. Predicting Soil Biological and Physical Properties Using Hydrological Properties

    NASA Astrophysics Data System (ADS)

    Geiger, L.; Hofmockel, K.; Kaleita, A.; Hargreaves, S.

    2012-12-01

    Soil biological and chemical properties vary at different spatial scales, which make predicting processes associated with these properties difficult. However, soil biological and chemical properties are important to fertility and ecosystem functioning. In this study, we used a Self Organizing Map (SOM) to determine whether soil hydrological characteristics can be used to characterize the distribution of a suite of soil biological and chemical properties. From a row crop field in south-central Iowa, we generated 36 sampling locations via a SOM, which were grouped into three categories according to hydrological properties by the SOM. Soil samples were then analyzed for microbial biomass, carbon and nitrogen mineralization potential, and organic and inorganic pools of carbon and nitrogen. We found that sampling locations in category 1 (potholes and toe slopes) had greater microbial biomass, total carbon, total nitrogen, and extractable organic carbon than compared locations in the two well-drained categories. Nitrogen and carbon mineralization and inorganic nitrogen pools did not differ significantly among the categories. These results demonstrate that hydrological characteristics can be used to predict relatively stable biological and chemical soil properties. However, prediction of nitrogen and carbon fluxes remains a challenge.

  4. Thermometric Property of a Diode.

    ERIC Educational Resources Information Center

    Inman, Fred W.; Woodruff, Dan

    1995-01-01

    Presents a simple way to implement the thermometric property of a semiconductor diode to produce a thermometer with a nearly linear dependence upon temperature over a wide range of temperatures. (JRH)

  5. Updated, expanded, fluid properties handbook

    NASA Technical Reports Server (NTRS)

    Gershman, R.; Osugi, J. T.; Sherman, A. L.

    1971-01-01

    Revised handbook presents quantitative data, in the form of graphs and charts, pertaining to thermodynamic properties of specific cryogenic fluids and several metals. References to sources of data are cited.

  6. Division 1137 property control system

    SciTech Connect

    Pastor, D.J.

    1982-01-01

    An automated data processing property control system was developed by Mobile and Remote Range Division 1137. This report describes the operation of the system and examines ways of using it in operational planning and control.

  7. Microstructure and properties of ceramics

    NASA Technical Reports Server (NTRS)

    Hamano, K.

    1984-01-01

    The history of research into the microstructure and properties of ceramic ware is discussed; methods of producing ceramics with particular characteristics are investigated. Bubbles, sintering, cracks, and electron microscopy are discussed.

  8. Physicochemical properties of quinoa starch.

    PubMed

    Li, Guantian; Wang, Sunan; Zhu, Fan

    2016-02-10

    Physicochemical properties of quinoa starches isolated from 26 commercial samples from a wide range of collection were studied. Swelling power (SP), water solubility index (WSI), amylose leaching (AML), enzyme susceptibility, pasting, thermal and textural properties were analyzed. Apparent amylose contents (AAM) ranged from 7.7 to 25.7%. Great variations in the diverse physicochemical properties were observed. Correlation analysis showed that AAM was the most significant factor related to AML, WSI, and pasting parameters. Correlations among diverse physicochemical parameters were analyzed. Principal component analysis using twenty three variables were used to visualize the difference among samples. Six principal components were extracted which could explain 88.8% of the total difference. The wide variations in physicochemical properties could contribute to innovative utilization of quinoa starch for food and non-food applications.

  9. Physicochemical properties of quinoa starch.

    PubMed

    Li, Guantian; Wang, Sunan; Zhu, Fan

    2016-02-10

    Physicochemical properties of quinoa starches isolated from 26 commercial samples from a wide range of collection were studied. Swelling power (SP), water solubility index (WSI), amylose leaching (AML), enzyme susceptibility, pasting, thermal and textural properties were analyzed. Apparent amylose contents (AAM) ranged from 7.7 to 25.7%. Great variations in the diverse physicochemical properties were observed. Correlation analysis showed that AAM was the most significant factor related to AML, WSI, and pasting parameters. Correlations among diverse physicochemical parameters were analyzed. Principal component analysis using twenty three variables were used to visualize the difference among samples. Six principal components were extracted which could explain 88.8% of the total difference. The wide variations in physicochemical properties could contribute to innovative utilization of quinoa starch for food and non-food applications. PMID:26686137

  10. Thermoelectric Properties of Selenides Spinels

    NASA Technical Reports Server (NTRS)

    Snyder, G.; Caillat, T.; Fleurial, J-P.

    2000-01-01

    Many compounds with the spinel structure type have been analyzed for their thermoelectric properties. Published data was used to augment experimental results presented here to select promising thermoelectric spinels.

  11. 44 CFR 13.31 - Real property.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... LOCAL GOVERNMENTS Post-Award Requirements Changes, Property, and Subawards § 13.31 Real property. (a... original purchase to the fair market value of the property. However, in those situations where a grantee or... purchase of the real property to the current fair market value of the property....

  12. 36 CFR 72.40 - Historic properties.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... Historic Preservation procedures described in 36 CFR 800, “Protection of Historic and Cultural Properties... 36 Parks, Forests, and Public Property 1 2013-07-01 2013-07-01 false Historic properties. 72.40... and Innovation § 72.40 Historic properties. Properties listed in or determined eligible for listing...

  13. 36 CFR 1207.31 - Real property.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... 36 Parks, Forests, and Public Property 3 2011-07-01 2011-07-01 false Real property. 1207.31 Section 1207.31 Parks, Forests, and Public Property NATIONAL ARCHIVES AND RECORDS ADMINISTRATION GENERAL... GOVERNMENTS Post-Award Requirements Changes, Property, and Subawards § 1207.31 Real property. (a)...

  14. 7 CFR 654.16 - Property management.

    Code of Federal Regulations, 2012 CFR

    2012-01-01

    ... property (34 CFR part 256). (c) Establish, adopt, and comply with a property management system which meets... 7 Agriculture 6 2012-01-01 2012-01-01 false Property management. 654.16 Section 654.16 Agriculture... Property management. Sponsor(s) are to: (a) Use real property acquired in whole or in part with...

  15. 7 CFR 654.16 - Property management.

    Code of Federal Regulations, 2013 CFR

    2013-01-01

    ... property (34 CFR part 256). (c) Establish, adopt, and comply with a property management system which meets... 7 Agriculture 6 2013-01-01 2013-01-01 false Property management. 654.16 Section 654.16 Agriculture... Property management. Sponsor(s) are to: (a) Use real property acquired in whole or in part with...

  16. 7 CFR 654.16 - Property management.

    Code of Federal Regulations, 2011 CFR

    2011-01-01

    ... property (34 CFR part 256). (c) Establish, adopt, and comply with a property management system which meets... 7 Agriculture 6 2011-01-01 2011-01-01 false Property management. 654.16 Section 654.16 Agriculture... Property management. Sponsor(s) are to: (a) Use real property acquired in whole or in part with...

  17. 7 CFR 654.16 - Property management.

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ... property (34 CFR part 256). (c) Establish, adopt, and comply with a property management system which meets... 7 Agriculture 6 2010-01-01 2010-01-01 false Property management. 654.16 Section 654.16 Agriculture... Property management. Sponsor(s) are to: (a) Use real property acquired in whole or in part with...

  18. 28 CFR 70.32 - Real property.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... 28 Judicial Administration 2 2011-07-01 2011-07-01 false Real property. 70.32 Section 70.32...-PROFIT ORGANIZATIONS Post-Award Requirements Property Standards § 70.32 Real property. (a) Title to real property will vest in the recipient subject to the condition that the recipient use the real property...

  19. 36 CFR 1002.22 - Property.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... 36 Parks, Forests, and Public Property 3 2013-07-01 2012-07-01 true Property. 1002.22 Section 1002.22 Parks, Forests, and Public Property PRESIDIO TRUST RESOURCE PROTECTION, PUBLIC USE AND RECREATION § 1002.22 Property. (a) The following are prohibited: (1) Abandoning property. (2) Leaving...

  20. 36 CFR 1002.22 - Property.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... 36 Parks, Forests, and Public Property 3 2011-07-01 2011-07-01 false Property. 1002.22 Section 1002.22 Parks, Forests, and Public Property PRESIDIO TRUST RESOURCE PROTECTION, PUBLIC USE AND RECREATION § 1002.22 Property. (a) The following are prohibited: (1) Abandoning property. (2)...

  1. 28 CFR 70.32 - Real property.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... 28 Judicial Administration 2 2013-07-01 2013-07-01 false Real property. 70.32 Section 70.32...-PROFIT ORGANIZATIONS Post-Award Requirements Property Standards § 70.32 Real property. (a) Title to real property will vest in the recipient subject to the condition that the recipient use the real property...

  2. 36 CFR 13.1240 - Unattended property.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 36 Parks, Forests, and Public Property 1 2010-07-01 2010-07-01 false Unattended property. 13.1240 Section 13.1240 Parks, Forests, and Public Property NATIONAL PARK SERVICE, DEPARTMENT OF THE INTERIOR... Developed Area § 13.1240 Unattended property. Leaving property, other than motorboats and planes,...

  3. 36 CFR 1207.31 - Real property.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... 36 Parks, Forests, and Public Property 3 2013-07-01 2012-07-01 true Real property. 1207.31 Section 1207.31 Parks, Forests, and Public Property NATIONAL ARCHIVES AND RECORDS ADMINISTRATION GENERAL RULES... Post-Award Requirements Changes, Property, and Subawards § 1207.31 Real property. (a) Title. Subject...

  4. 36 CFR 1002.22 - Property.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 36 Parks, Forests, and Public Property 3 2010-07-01 2010-07-01 false Property. 1002.22 Section 1002.22 Parks, Forests, and Public Property PRESIDIO TRUST RESOURCE PROTECTION, PUBLIC USE AND RECREATION § 1002.22 Property. (a) The following are prohibited: (1) Abandoning property. (2)...

  5. 7 CFR 767.51 - Property abandonment.

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ... 7 Agriculture 7 2010-01-01 2010-01-01 false Property abandonment. 767.51 Section 767.51... AGRICULTURE SPECIAL PROGRAMS INVENTORY PROPERTY MANAGEMENT Property Abandonment and Personal Property Removal § 767.51 Property abandonment. The Agency will take actions necessary to secure, maintain,...

  6. 7 CFR 767.51 - Property abandonment.

    Code of Federal Regulations, 2011 CFR

    2011-01-01

    ... 7 Agriculture 7 2011-01-01 2011-01-01 false Property abandonment. 767.51 Section 767.51... AGRICULTURE SPECIAL PROGRAMS INVENTORY PROPERTY MANAGEMENT Property Abandonment and Personal Property Removal § 767.51 Property abandonment. The Agency will take actions necessary to secure, maintain,...

  7. Colligative properties of anomalous water.

    PubMed

    Everett, D H; Haynes, J M; McElroy, P J

    1970-06-13

    Investigations of the phase behaviour on freezing and subsequent melting and of other properties indicate that anomalous water is a solution containing a fixed amount of relatively involatile material in normal water. There seems to be no need to postulate the existence of a new polymer of water in such solutions. If only water and silica are present, the properties are consistent with those of a silicic acid gel.

  8. Know your intellectual property rights.

    PubMed

    Khan, A

    1999-03-01

    Dismissing intellectual property rights as someone else's responsibility may not be prudent. It can jeopardize a company's future business because any new product could be unprotected, or even worse, belong to someone else. This article explains how a little strategic planning and due diligence can help prevent unnecessary legal costs. Much of a company's value can be tied up in intangible assets such as patents, trademarks and copyright, and an intellectual property audit helps assess its true worth. PMID:10387614

  9. Legal ramifications of intellectual property

    NASA Technical Reports Server (NTRS)

    Kempf, Robert F.

    1990-01-01

    Recent government policy changes that have resulted in encouraging or requiring increased intellectual property rights of Federally funded research and development activities are examined. The reasons for these changes are discussed, including considerations related to technology transfer, patent rights, copyrights, trade secrets, and computer software issues. The effect of these changes on traditional approaches to the dissemination of Federally funded scientific and technical information is considered and predictions concerning future trends in intellectual property rights are given.

  10. Property Taxes and Elderly Mobility

    PubMed Central

    Shan, Hui

    2009-01-01

    The 2000–05 housing market boom in the U.S. has caused sharp increases in residential property taxes. Housing-rich but income-poor elderly homeowners often complain about rising tax burdens, and anecdotal evidence suggests that some move to reduce their tax burden. There has been little systematic analysis, however, of the link between property tax levels and the mobility rate of elderly homeowners. This paper investigates this link using household-level panel data from the Health and Retirement Study (HRS) and a newly collected data set on state-provided property tax relief programs. These relief programs generate variation in effective property tax burdens that is not due solely to arguably endogenous local community choices about taxes and expenditure programs. The findings provide evidence suggesting that higher property taxes raise mobility among elderly homeowners. The point estimates from instrumental variable estimation using relief programs to generate instruments suggest that a $100 increase in annual property taxes is associated with a 0.73 percentage point increase in the two-year mobility rate for homeowners over the age of 50. This is an eight percent increase from the baseline two-year mobility rate of nine percent. These results are robust to alternative specifications. PMID:20161617

  11. 36 CFR 72.40 - Historic properties.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... Historic Preservation procedures described in 36 CFR 800, “Protection of Historic and Cultural Properties... and Innovation § 72.40 Historic properties. Properties listed in or determined eligible for listing...

  12. 36 CFR 72.40 - Historic properties.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... Historic Preservation procedures described in 36 CFR 800, “Protection of Historic and Cultural Properties... and Innovation § 72.40 Historic properties. Properties listed in or determined eligible for listing...

  13. 36 CFR 72.40 - Historic properties.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... Historic Preservation procedures described in 36 CFR 800, “Protection of Historic and Cultural Properties... and Innovation § 72.40 Historic properties. Properties listed in or determined eligible for listing...

  14. 36 CFR 72.40 - Historic properties.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... Historic Preservation procedures described in 36 CFR 800, “Protection of Historic and Cultural Properties... and Innovation § 72.40 Historic properties. Properties listed in or determined eligible for listing...

  15. 40 CFR 30.32 - Real property.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... NON-PROFIT ORGANIZATIONS Post-Award Requirements Property Standards § 30.32 Real property. EPA shall... the property, proper sales procedures shall be established that provide for competition to the...

  16. Seismic properties of polyphase rocks

    NASA Astrophysics Data System (ADS)

    Wang, Qin

    2005-11-01

    Knowledge about the seismic properties of polyphase rocks is fundamental for interpreting seismic refraction and reflection data and for establishing lithospheric structure and composition models. This study aims to obtain more precise relationships between seismic properties of rocks and controlling factors (e.g., pressure, temperature, mineralogical and chemical compositions, microstructure of rocks), particularly for those rocks imprinted by ultrahigh-pressure (UHP) metamorphism. These relationships will be very helpful to extrapolate calculated and measured seismic properties of rocks to depths of interest and to engender interpretations relevant to petrological composition and tectonic process. An Internet Database of Rock Seismic Properties (DRSP) was set up and a Handbook of Seismic Properties of Minerals, Rocks and Ores was published. They comprise almost all data available in the literature during the past 4 decades and can serve as a convenient, comprehensive and concise information source on physical properties of rocks to the earth sciences and geotechnical communities. Statistical results of the DRSP reveal the dependence of seismic properties on density, porosity, humidity, and mineralogical and chemical compositions. Using 16 different averaging methods, we calculated P-wave velocities of 696 dry samples according to the volume fraction and elastic constants of each constituent mineral. Although only 22 common minerals were taken into account in the computation, the calculated P-wave velocities agree well with laboratory values measured at about 300 MPa, where most microcracks are closed and the mean Vp of a polymineralic rock is exclusively controlled by its modal composition. However, none of these mixture rules can simultaneously fit measured P-wave velocities for all lithologies or at all pressures. Therefore, more prudence is required in selecting an appropriate mixture rule for calculation of seismic velocities of different rock types.

  17. 36 CFR 261.9 - Property.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ..., or archaeological resource, structure, site, artifact, or property. (h) Removing any prehistoric, historic, or archaeological resource, structure, site, artifact, property. (i) Excavating, damaging,...

  18. Mechanical Properties of Respiratory Muscles

    PubMed Central

    Sieck, Gary C.; Ferreira, Leonardo F.; Reid, Michael B.; Mantilla, Carlos B.

    2014-01-01

    Striated respiratory muscles are necessary for lung ventilation and to maintain the patency of the upper airway. The basic structural and functional properties of respiratory muscles are similar to those of other striated muscles (both skeletal and cardiac). The sarcomere is the fundamental organizational unit of striated muscles and sarcomeric proteins underlie the passive and active mechanical properties of muscle fibers. In this respect, the functional categorization of different fiber types provides a conceptual framework to understand the physiological properties of respiratory muscles. Within the sarcomere, the interaction between the thick and thin filaments at the level of cross-bridges provides the elementary unit of force generation and contraction. Key to an understanding of the unique functional differences across muscle fiber types are differences in cross-bridge recruitment and cycling that relate to the expression of different myosin heavy chain isoforms in the thick filament. The active mechanical properties of muscle fibers are characterized by the relationship between myoplasmic Ca2+ and cross-bridge recruitment, force generation and sarcomere length (also cross-bridge recruitment), external load and shortening velocity (cross-bridge cycling rate), and cross-bridge cycling rate and ATP consumption. Passive mechanical properties are also important reflecting viscoelastic elements within sarcomeres as well as the extracellular matrix. Conditions that affect respiratory muscle performance may have a range of underlying pathophysiological causes, but their manifestations will depend on their impact on these basic elemental structures. PMID:24265238

  19. Antimicrobial Peptides: Versatile Biological Properties

    PubMed Central

    Pushpanathan, Muthuirulan; Rajendhran, Jeyaprakash

    2013-01-01

    Antimicrobial peptides are diverse group of biologically active molecules with multidimensional properties. In recent past, a wide variety of AMPs with diverse structures have been reported from different sources such as plants, animals, mammals, and microorganisms. The presence of unusual amino acids and structural motifs in AMPs confers unique structural properties to the peptide that attribute for their specific mode of action. The ability of these active AMPs to act as multifunctional effector molecules such as signalling molecule, immune modulators, mitogen, antitumor, and contraceptive agent makes it an interesting candidate to study every aspect of their structural and biological properties for prophylactic and therapeutic applications. In addition, easy cloning and recombinant expression of AMPs in heterologous plant host systems provided a pipeline for production of disease resistant transgenic plants. Besides these properties, AMPs were also used as drug delivery vectors to deliver cell impermeable drugs to cell interior. The present review focuses on the diversity and broad spectrum antimicrobial activity of AMPs along with its multidimensional properties that could be exploited for the application of these bioactive peptides as a potential and promising drug candidate in pharmaceutical industries. PMID:23935642

  20. Dynamic properties of ceramic materials

    SciTech Connect

    Grady, D.E.; Wise, J.L.

    1993-09-01

    Controlled impact methods have been employed to obtain dynamic response properties of armor materials. Experimental data have been obtained for high-strength ceramics. Continued analysis of time-resolved velocity interferometer measurements has produced systematic material-property data for Hugoniot and release response, initial and post-yield strength, pressure-induced phase transformation, and dynamic fracture strength. A new technique has been developed to measure hydrodynamic properties of ceramic through shock-wave experiments on metal-ceramic composites and data obtained for silicon carbide. Additional data on several titanium diboride ceramics and high-quality aluminum oxide ceramic have been acquired, and issues regarding the influence of microstructure on dynamic properties have emerged. Comparison of dynamic (Hugoniot elastic limit) strength and indentation hardness data has been performed and important correlations revealed. Innovative impact experiments on confined and unconfined alumina rods using axial and transverse VISAR diagnostics have been demonstrated which permit acquisition of multiaxial dynamic response data. Dynamic failure properties of a high-density aluminosilicate glass, similar in composition to the intergranular glassy phase of some aluminas, have been investigated with regard to yield, spall, and failure-wave propagation.

  1. 7 CFR 767.52 - Disposition of personal property from real estate inventory property.

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    .... Property of value may be sold at a public sale. (b) Reclaiming personal property. The owner or lienholder... 7 Agriculture 7 2010-01-01 2010-01-01 false Disposition of personal property from real estate... Property Abandonment and Personal Property Removal § 767.52 Disposition of personal property from...

  2. Microstructure, mechanical properties, bio-corrosion properties and antibacterial properties of Ti-Ag sintered alloys.

    PubMed

    Chen, Mian; Zhang, Erlin; Zhang, Lan

    2016-05-01

    In this research, Ag element was selected as an antibacterial agent to develop an antibacterial Ti-Ag alloy by a powder metallurgy. The microstructure, phase constitution, mechanical properties, corrosion resistance and antibacterial properties of the Ti-Ag sintered alloys have been systematically studied by X-ray diffraction (XRD), scanning electron microscope (SEM), compressive test, electrochemical measurements and antibacterial test. The effects of the Ag powder size and the Ag content on the antibacterial property and mechanical property as well as the anticorrosion property have been investigated. The microstructure results have shown that Ti-Ag phase, residual pure Ag and Ti were the mainly phases in Ti-Ag(S75) sintered alloy while Ti2Ag was synthesized in Ti-Ag(S10) sintered alloy. The mechanical test indicated that Ti-Ag sintered alloy showed a much higher hardness and the compressive yield strength than cp-Ti but the mechanical properties were slightly reduced with the increase of Ag content. Electrochemical results showed that Ag powder size had a significant effect on the corrosion resistance of Ti-Ag sintered alloy. Ag content increased the corrosion resistance in a dose dependent way under a homogeneous microstructure. Antibacterial tests have demonstrated that antibacterial Ti-Ag alloy was successfully prepared. It was also shown that the Ag powder particle size and the Ag content influenced the antibacterial activity seriously. The reduction in the Ag powder size was benefit to the improvement in the antibacterial property and the Ag content has to be at least 3wt.% in order to obtain a strong and stable antibacterial activity against Staphylococcus aureus bacteria. The bacterial mechanism was thought to be related to the Ti2Ag and its distribution. PMID:26952433

  3. Microstructure, mechanical properties, bio-corrosion properties and antibacterial properties of Ti-Ag sintered alloys.

    PubMed

    Chen, Mian; Zhang, Erlin; Zhang, Lan

    2016-05-01

    In this research, Ag element was selected as an antibacterial agent to develop an antibacterial Ti-Ag alloy by a powder metallurgy. The microstructure, phase constitution, mechanical properties, corrosion resistance and antibacterial properties of the Ti-Ag sintered alloys have been systematically studied by X-ray diffraction (XRD), scanning electron microscope (SEM), compressive test, electrochemical measurements and antibacterial test. The effects of the Ag powder size and the Ag content on the antibacterial property and mechanical property as well as the anticorrosion property have been investigated. The microstructure results have shown that Ti-Ag phase, residual pure Ag and Ti were the mainly phases in Ti-Ag(S75) sintered alloy while Ti2Ag was synthesized in Ti-Ag(S10) sintered alloy. The mechanical test indicated that Ti-Ag sintered alloy showed a much higher hardness and the compressive yield strength than cp-Ti but the mechanical properties were slightly reduced with the increase of Ag content. Electrochemical results showed that Ag powder size had a significant effect on the corrosion resistance of Ti-Ag sintered alloy. Ag content increased the corrosion resistance in a dose dependent way under a homogeneous microstructure. Antibacterial tests have demonstrated that antibacterial Ti-Ag alloy was successfully prepared. It was also shown that the Ag powder particle size and the Ag content influenced the antibacterial activity seriously. The reduction in the Ag powder size was benefit to the improvement in the antibacterial property and the Ag content has to be at least 3wt.% in order to obtain a strong and stable antibacterial activity against Staphylococcus aureus bacteria. The bacterial mechanism was thought to be related to the Ti2Ag and its distribution.

  4. Tensile properties of textile composites

    NASA Technical Reports Server (NTRS)

    Avva, V. Sarma; Sadler, Robert L.; Lyon, Malcolm

    1992-01-01

    The importance of textile composite materials in aerospace structural applications has been gaining momentum in recent years. With a view to better understand the suitability of these materials in aerospace applications, an experimental program was undertaken to assess the mechanical properties of these materials. Specifically, the braided textile preforms were infiltrated with suitable polymeric matrices leading to the fabrication of composite test coupons. Evaluation of the tensile properties and the analyses of the results in the form of strength moduli, Poisson's ratio, etc., for the braided composites are presented. Based on our past experience with the textile coupons, the fabrication techniques have been modified (by incorporating glass microballoons in the matrix and/or by stabilizing the braid angle along the length of the specimen with axial fibers) to achieve enhanced mechanical properties of the textile composites. This paper outlines the preliminary experimental results obtained from testing these composites.

  5. Surface properties of beached plastics.

    PubMed

    Fotopoulou, Kalliopi N; Karapanagioti, Hrissi K

    2015-07-01

    Studying plastic characteristics in the marine environment is important to better understand interaction between plastics and the environment. In the present study, high-density polyethylene (HDPE), polyethylene terephalate (PET), and polyvinyl chloride (PVC) samples were collected from the coastal environment in order to study their surface properties. Surface properties such as surface functional groups, surface topography, point of zero charge, and color change are important factors that change during degradation. Eroded HDPE demonstrated an altered surface topography and color and new functional groups. Eroded PET surface was uneven, yellow, and occasionally, colonized by microbes. A decrease in Fourier transform infrared (FTIR) peaks was observed for eroded PET suggesting that degradation had occurred. For eroded PVC, its surface became more lamellar and a new FTIR peak was observed. These surface properties were obtained due to degradation and could be used to explain the interaction between plastics, microbes, and pollutants. PMID:25787219

  6. Tuning Properties in Silver Clusters.

    PubMed

    Joshi, Chakra P; Bootharaju, Megalamane S; Bakr, Osman M

    2015-08-01

    The properties of Ag nanoclusters are not as well understood as those of their more precious Au cousins. However, a recent surge in the exploration of strategies to tune the physicochemical characteristics of Ag clusters addresses this imbalance, leading to new insights into their optical, luminescence, crystal habit, metal-core, ligand-shell, and environmental properties. In this Perspective, we provide an overview of the latest strategies along with a brief introduction of the theoretical framework necessary to understand the properties of silver nanoclusters and the basis for their tuning. The advances in cluster research and the future prospects presented in this Perspective will eventually guide the next large systematic study of nanoclusters, resulting in a single collection of data similar to the periodic table of elements. PMID:26267198

  7. Elastomechanical properties of bovine veins.

    PubMed

    Rossmann, Jenn Stroud

    2010-02-01

    Veins have historically been discussed in qualitative, relative terms: "more compliant" than arteries, subject to "lower pressures". The structural and compositional differences between arteries and veins are directly related to the different functions of these vessels. Veins are often used as grafts to reroute flow from atherosclerotic arteries, and venous elasticity plays a role in the development of conditions such as varicose veins and valvular insufficiency. It is therefore of clinical interest to determine the elastomechanical properties of veins. In the current study, both tensile and vibration testing are used to obtain elastic moduli of bovine veins. Representative stress-strain data are shown, and the mechanical and failure properties reported. Nonlinear and viscoelastic behavior is observed, though most properties show little strain rate dependence. These data suggest parameters for constitutive modeling of veins and may inform the design and testing of prosthetic venous valves as well as vein grafts. PMID:20129420

  8. Advanced working fluids: Thermodynamic properties

    NASA Astrophysics Data System (ADS)

    Lee, Lloyd L.; Gering, Kevin L.

    1990-10-01

    Electrolytes are used as working fluids in gas fired heat pump chiller engine cycles. To find out which molecular parameters of the electrolytes impact on cycle performance, a molecular theory is developed for calculating solution properties, enthalpies, vapor-liquid equilibria, and engine cycle performance. Aqueous and ammoniac single and mixed salt solutions in single and multisolvent systems are investigated. An accurate correlation is developed to evaluate properties for concentrated electrolyte solutions. Sensitivity analysis is used to determine the impact of molecular parameters on the thermodynamic properties and cycle performance. The preferred electrolytes are of 1-1 valence type, small ion size, high molecular weight, and in strongly colligative cosolvent. The operating windows are determined for a number of absorption fluids of industrial importance.

  9. HDS catalysts performance and properties

    SciTech Connect

    Panarello, F.; Guanziroli, S.

    1995-12-31

    The European refiners are being asked to produce cleaner diesel fuel which might reduce engine emissions. To meet this requirement they have to increase the hydrotreatment capacity and to use the best catalysts in terms of activity and deactivation performances. In particular, Co-Mo on gamma-alumina catalysts are currently in use to reduce diesel sulfur content. In the past, different chemical-physical modifications have been studied in order to improve the catalysts performances, many theoretical correlations between one or more chemical-physical properties and activity have been suggested. We tested different Co-Mo catalysts in pilot plant units with various refinery streams and run length up to two thousand hours. We performed on fresh, exhausted and regenerated catalysts samples, elemental composition, surface properties, metal dispersion and metal distribution analyses. Among the various chemical-physical properties the metal distribution is the parameter that correlates in the most satisfactory way with the catalytic performances.

  10. Analysis of Hydrologic Properties Data

    SciTech Connect

    H.H. Liu; C.F. Ahlers

    2001-12-20

    The purpose of this Analysis/Model Report (AMR) is to describe the methods used to determine hydrologic properties based on the available field data from the unsaturated zone at Yucca Mountain, Nevada. This is in accordance with the AMR Development Plan (DP) for U0090 Analysis of Hydrologic Properties Data (CRWMS M and O 1999c). Fracture and matrix properties are developed by compiling and analyzing available survey data from the Exploratory Studies Facility (ESF), Cross Drift of Enhanced Characterization of Repository Block (ECRB), and/or boreholes; air injection testing data from surface boreholes and from boreholes in ESF; in-situ measurements of water potential; and data from laboratory testing of core samples.

  11. Surface properties of beached plastics.

    PubMed

    Fotopoulou, Kalliopi N; Karapanagioti, Hrissi K

    2015-07-01

    Studying plastic characteristics in the marine environment is important to better understand interaction between plastics and the environment. In the present study, high-density polyethylene (HDPE), polyethylene terephalate (PET), and polyvinyl chloride (PVC) samples were collected from the coastal environment in order to study their surface properties. Surface properties such as surface functional groups, surface topography, point of zero charge, and color change are important factors that change during degradation. Eroded HDPE demonstrated an altered surface topography and color and new functional groups. Eroded PET surface was uneven, yellow, and occasionally, colonized by microbes. A decrease in Fourier transform infrared (FTIR) peaks was observed for eroded PET suggesting that degradation had occurred. For eroded PVC, its surface became more lamellar and a new FTIR peak was observed. These surface properties were obtained due to degradation and could be used to explain the interaction between plastics, microbes, and pollutants.

  12. Intellectual Property Law as an Internal Limit on Intellectual Property Rights and Autonomous Source of Liability for Intellectual Property Owners

    ERIC Educational Resources Information Center

    Judge, Elizabeth F.

    2007-01-01

    This article considers the interplay between intellectual property rights and classic property rights raised by Hoffman v. Monsanto (2005) and advances the idea that intellectual property law can serve as an autonomous source of liability for intellectual property owners. The article develops the conceptual advantages of demarcating physical and…

  13. Selected properties of iron aluminides

    SciTech Connect

    Schneibel, J.H.

    1994-09-01

    Important properties of iron aluminides have been compiled in order to help engineers and scientists to be able to quickly assess this materials system. This compilation is by no means exhaustive, but it represents a reasonable first effort to summarize the properties of iron aluminides. Considerable care has been, used in assembling the data into tables. However, no guarantee can be made that all the values compiled here are correct; and in case of doubt, or in order to obtain more detailed information, the original sources should always be consulted.

  14. Optical properties of human hair

    NASA Astrophysics Data System (ADS)

    Altshuler, Gregory B.; Ilyasov, Ildar K.; Prikhodko, Constantin V.

    1995-01-01

    Optical properties of human hair are the subject of great interest for the realization of any possible cosmetic applications. This paper represents the results of hair microstructure as an optical substance investigation, indicates melanin and keratin absorption spectra, and shows experimentally discovered anisotropia of optical properties of human hair. Radiation weakening coefficient value at the range from 450 up to 800 nm is estimated. Thresholds of hair destruction by Nd, Ho, Cu, and Er laser radiation are obtained. Perspectives of laser application for epilation and other medical purposes are evaluated.

  15. Statistical Properties of Online Auctions

    NASA Astrophysics Data System (ADS)

    Namazi, Alireza; Schadschneider, Andreas

    We characterize the statistical properties of a large number of online auctions run on eBay. Both stationary and dynamic properties, like distributions of prices, number of bids etc., as well as relations between these quantities are studied. The analysis of the data reveals surprisingly simple distributions and relations, typically of power-law form. Based on these findings we introduce a simple method to identify suspicious auctions that could be influenced by a form of fraud known as shill bidding. Furthermore the influence of bidding strategies is discussed. The results indicate that the observed behavior is related to a mixture of agents using a variety of strategies.

  16. Getting smart about intellectual property

    NASA Astrophysics Data System (ADS)

    Horwitz, Bruce A.

    2010-08-01

    Intellectual Property, particularly a patent portfolio, is a critical part of many companies' assets. Yet many of these companies act dumb when it comes to Intellectual Property. Blundering forward without a plan or a manager, the company may throw money at a patent attorney pursuing a patent of little value; it may fool itself into thinking it has protection with a "provisional patent" it may fail to act in a timely fashion and lose its rights to a valuable patent. This paper highlights some of the mistakes some companies make so that you can avoid falling into the same pitfalls.

  17. Alginate: properties and biomedical applications

    PubMed Central

    Lee, Kuen Yong; Mooney, David J.

    2011-01-01

    Alginate is a biomaterial that has found numerous applications in biomedical science and engineering due to its favorable properties, including biocompatibility and ease of gelation. Alginate hydrogels have been particularly attractive in wound healing, drug delivery, and tissue engineering applications to date, as these gels retain structural similarity to the extracellular matrices in tissues and can be manipulated to play several critical roles. This review will provide a comprehensive overview of general properties of alginate and its hydrogels, their biomedical applications, and suggest new perspectives for future studies with these polymers. PMID:22125349

  18. Quantum Control of Molecular Properties

    SciTech Connect

    Sola, I. R.; Gonzalez-Vazquez, J.; Santamaria, J.; Malinovsky, V. S.; Chang, B. Y.

    2007-12-26

    A general scheme is presented for controlling different molecular properties under strong pulse sequences working in the adiabatic regime. The strong laser pulses create laser induced potentials (LIP). The design of adiabatic schemes allows to move the wave function to the desired LIP. Manipulation of the structure of these LIPs and the starting energy of the wave function in the LIP, allows to control such different properties as bond lengths, vibrational motions, and intramolecular couplings. This work reviews some recent results under a unified frame and explores future applications.

  19. 45 CFR 74.32 - Real property.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... COMMERCIAL ORGANIZATIONS Post-Award Requirements Property Standards § 74.32 Real property. (a) Title to real... compensates the Federal Government for that percentage of the current fair market value of the property... current fair market value of the property attributable to the Federal share in the project...

  20. 24 CFR 8.31 - Historic properties.

    Code of Federal Regulations, 2014 CFR

    2014-04-01

    ... the UDAG program the requirements of 36 CFR part 801 shall apply. Accessibility to historic properties... 24 Housing and Urban Development 1 2014-04-01 2014-04-01 false Historic properties. 8.31 Section 8... URBAN DEVELOPMENT Program Accessibility § 8.31 Historic properties. If historic properties...

  1. 24 CFR 8.31 - Historic properties.

    Code of Federal Regulations, 2013 CFR

    2013-04-01

    ... the UDAG program the requirements of 36 CFR part 801 shall apply. Accessibility to historic properties... 24 Housing and Urban Development 1 2013-04-01 2013-04-01 false Historic properties. 8.31 Section 8... URBAN DEVELOPMENT Program Accessibility § 8.31 Historic properties. If historic properties...

  2. 24 CFR 8.31 - Historic properties.

    Code of Federal Regulations, 2012 CFR

    2012-04-01

    ... the UDAG program the requirements of 36 CFR part 801 shall apply. Accessibility to historic properties... 24 Housing and Urban Development 1 2012-04-01 2012-04-01 false Historic properties. 8.31 Section 8... URBAN DEVELOPMENT Program Accessibility § 8.31 Historic properties. If historic properties...

  3. 36 CFR 327.14 - Public property.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... 36 Parks, Forests, and Public Property 3 2011-07-01 2011-07-01 false Public property. 327.14 Section 327.14 Parks, Forests, and Public Property CORPS OF ENGINEERS, DEPARTMENT OF THE ARMY RULES AND... § 327.14 Public property. (a) Destruction, injury, defacement, removal or any alteration of...

  4. 45 CFR 92.31 - Real property.

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ... 45 Public Welfare 1 2011-10-01 2011-10-01 false Real property. 92.31 Section 92.31 Public Welfare..., Property, and Subawards § 92.31 Real property. (a) Title. Subject to the obligations and conditions set forth in this section, title to real property acquired under a grant or subgrant will vest...

  5. 24 CFR 203.42 - Rental properties.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ... 24 Housing and Urban Development 2 2010-04-01 2010-04-01 false Rental properties. 203.42 Section... FAMILY MORTGAGE INSURANCE Eligibility Requirements and Underwriting Procedures Eligible Properties § 203.42 Rental properties. (a) A mortgage on property upon which there is a dwelling to be rented by...

  6. 7 CFR 3565.251 - Eligible property.

    Code of Federal Regulations, 2011 CFR

    2011-01-01

    ... 7 Agriculture 15 2011-01-01 2011-01-01 false Eligible property. 3565.251 Section 3565.251... AGRICULTURE GUARANTEED RURAL RENTAL HOUSING PROGRAM Property Requirements § 3565.251 Eligible property. To be eligible for a guaranteed loan, a property must be used primarily for residential dwelling purposes...

  7. 24 CFR 8.31 - Historic properties.

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ... the UDAG program the requirements of 36 CFR part 801 shall apply. Accessibility to historic properties... 24 Housing and Urban Development 1 2011-04-01 2011-04-01 false Historic properties. 8.31 Section 8... URBAN DEVELOPMENT Program Accessibility § 8.31 Historic properties. If historic properties...

  8. 36 CFR 1210.32 - Real property.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... 36 Parks, Forests, and Public Property 3 2011-07-01 2011-07-01 false Real property. 1210.32 Section 1210.32 Parks, Forests, and Public Property NATIONAL ARCHIVES AND RECORDS ADMINISTRATION GENERAL... EDUCATION, HOSPITALS, AND OTHER NON-PROFIT ORGANIZATIONS Post-Award Requirements Property Standards §...

  9. 24 CFR 257.108 - Eligible properties.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ... 24 Housing and Urban Development 2 2010-04-01 2010-04-01 false Eligible properties. 257.108... properties. (a) A mortgage may be insured under the H4H program only if the property that is to be the security for the mortgage is a one-to-four unit residence. (b) The following property types are eligible...

  10. 45 CFR 74.32 - Real property.

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ... 45 Public Welfare 1 2011-10-01 2011-10-01 false Real property. 74.32 Section 74.32 Public Welfare... COMMERCIAL ORGANIZATIONS Post-Award Requirements Property Standards § 74.32 Real property. (a) Title to real property shall vest in the recipient subject to the condition that the recipient shall use the...

  11. 45 CFR 12a.11 - Unsuitable properties.

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ... 45 Public Welfare 1 2011-10-01 2011-10-01 false Unsuitable properties. 12a.11 Section 12a.11... PROPERTY TO ASSIST THE HOMELESS § 12a.11 Unsuitable properties. The landholding agency will defer, for 20 days after the date that notice of a property is published in the Federal Register, action to...

  12. 7 CFR 3015.163 - Real property.

    Code of Federal Regulations, 2011 CFR

    2011-01-01

    ... 7 Agriculture 15 2011-01-01 2011-01-01 false Real property. 3015.163 Section 3015.163 Agriculture... AGRICULTURE UNIFORM FEDERAL ASSISTANCE REGULATIONS Property § 3015.163 Real property. Except as stated otherwise by Federal statutes, real property applicable to this subpart shall be subject to the...

  13. 7 CFR 3016.31 - Real property.

    Code of Federal Regulations, 2011 CFR

    2011-01-01

    ... 7 Agriculture 15 2011-01-01 2011-01-01 false Real property. 3016.31 Section 3016.31 Agriculture... GOVERNMENTS Post-Award Requirements Changes, Property, and Subawards § 3016.31 Real property. (a) Title. Subject to the obligations and conditions set forth in this section, title to real property acquired...

  14. 2 CFR 215.32 - Real property.

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ... 2 Grants and Agreements 1 2010-01-01 2010-01-01 false Real property. 215.32 Section 215.32 Grants... ORGANIZATIONS (OMB CIRCULAR A-110) Post Award Requirements Property Standards § 215.32 Real property. Each... real property acquired in whole or in part under awards. Unless otherwise provided by statute,...

  15. 36 CFR 327.14 - Public property.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 36 Parks, Forests, and Public Property 3 2010-07-01 2010-07-01 false Public property. 327.14 Section 327.14 Parks, Forests, and Public Property CORPS OF ENGINEERS, DEPARTMENT OF THE ARMY RULES AND... § 327.14 Public property. (a) Destruction, injury, defacement, removal or any alteration of...

  16. 7 CFR 767.51 - Property abandonment.

    Code of Federal Regulations, 2013 CFR

    2013-01-01

    ... jeopardy, the Agency will take the above actions prior to completing servicing actions contained in 7 CFR... 7 Agriculture 7 2013-01-01 2013-01-01 false Property abandonment. 767.51 Section 767.51... AGRICULTURE SPECIAL PROGRAMS INVENTORY PROPERTY MANAGEMENT Property Abandonment and Personal Property...

  17. 7 CFR 767.51 - Property abandonment.

    Code of Federal Regulations, 2014 CFR

    2014-01-01

    ... jeopardy, the Agency will take the above actions prior to completing servicing actions contained in 7 CFR... 7 Agriculture 7 2014-01-01 2014-01-01 false Property abandonment. 767.51 Section 767.51... AGRICULTURE SPECIAL PROGRAMS INVENTORY PROPERTY MANAGEMENT Property Abandonment and Personal Property...

  18. 7 CFR 767.51 - Property abandonment.

    Code of Federal Regulations, 2012 CFR

    2012-01-01

    ... jeopardy, the Agency will take the above actions prior to completing servicing actions contained in 7 CFR... 7 Agriculture 7 2012-01-01 2012-01-01 false Property abandonment. 767.51 Section 767.51... AGRICULTURE SPECIAL PROGRAMS INVENTORY PROPERTY MANAGEMENT Property Abandonment and Personal Property...

  19. Property Data Summaries for Advanced Materials

    National Institute of Standards and Technology Data Gateway

    SRD 150 NIST Property Data Summaries for Advanced Materials (Web, free access)   Property Data Summaries are topical collections of property values derived from surveys of published data. Thermal, mechanical, structural, and chemical properties are included in the collections.

  20. 36 CFR 327.14 - Public property.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... 36 Parks, Forests, and Public Property 3 2014-07-01 2014-07-01 false Public property. 327.14 Section 327.14 Parks, Forests, and Public Property CORPS OF ENGINEERS, DEPARTMENT OF THE ARMY RULES AND... § 327.14 Public property. (a) Destruction, injury, defacement, removal or any alteration of...

  1. 36 CFR 327.14 - Public property.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... 36 Parks, Forests, and Public Property 3 2012-07-01 2012-07-01 false Public property. 327.14 Section 327.14 Parks, Forests, and Public Property CORPS OF ENGINEERS, DEPARTMENT OF THE ARMY RULES AND... § 327.14 Public property. (a) Destruction, injury, defacement, removal or any alteration of...

  2. 36 CFR 261.9 - Property.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... 36 Parks, Forests, and Public Property 2 2012-07-01 2012-07-01 false Property. 261.9 Section 261.9 Parks, Forests, and Public Property FOREST SERVICE, DEPARTMENT OF AGRICULTURE PROHIBITIONS General..., or archaeological resource, structure, site, artifact, or property. (h) Removing any...

  3. 45 CFR 2541.310 - Real property.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... 45 Public Welfare 4 2010-10-01 2010-10-01 false Real property. 2541.310 Section 2541.310 Public... Changes, Property and Subawards § 2541.310 Real property. (a) Title. Subject to the obligations and conditions set forth in this section, title to real property acquired under a grant or subgrant will...

  4. 22 CFR 518.32 - Real property.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ... 22 Foreign Relations 2 2010-04-01 2010-04-01 true Real property. 518.32 Section 518.32 Foreign... Property Standards § 518.32 Real property. Each Federal awarding agency shall prescribe requirements for recipients concerning the use and disposition of real property acquired in whole or in part under...

  5. 43 CFR 12.71 - Real property.

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ... 43 Public Lands: Interior 1 2011-10-01 2011-10-01 false Real property. 12.71 Section 12.71 Public... to State and Local Governments Changes, Property, and Subawards § 12.71 Real property. (a) Title. Subject to the obligations and conditions set forth in this section, title to real property acquired...

  6. 15 CFR 24.31 - Real property.

    Code of Federal Regulations, 2013 CFR

    2013-01-01

    ... 15 Commerce and Foreign Trade 1 2013-01-01 2013-01-01 false Real property. 24.31 Section 24.31..., Property, and Subawards § 24.31 Real property. (a) Title. Subject to the obligations and conditions set forth in this section, title to real property acquired under a grant or subgrant will vest...

  7. 32 CFR 32.32 - Real property.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... 32 National Defense 1 2013-07-01 2013-07-01 false Real property. 32.32 Section 32.32 National... NON-PROFIT ORGANIZATIONS Post-Award Requirements Property Standards § 32.32 Real property. Each DoD Component that makes awards under which real property is acquired in whole or in part with Federal...

  8. 14 CFR 1273.31 - Real property.

    Code of Federal Regulations, 2011 CFR

    2011-01-01

    ... 14 Aeronautics and Space 5 2011-01-01 2010-01-01 true Real property. 1273.31 Section 1273.31..., Property, and Subawards § 1273.31 Real property. (a) Title. Subject to the obligations and conditions set forth in this section, title to real property acquired under a grant or subgrant will vest...

  9. 32 CFR 776.34 - Safekeeping property.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... 32 National Defense 5 2013-07-01 2013-07-01 false Safekeeping property. 776.34 Section 776.34... of Professional Conduct § 776.34 Safekeeping property. (a) Safekeeping property. Covered USG attorneys shall not normally hold or safeguard property of a client or third persons in connection...

  10. 40 CFR 31.31 - Real property.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... 40 Protection of Environment 1 2013-07-01 2013-07-01 false Real property. 31.31 Section 31.31... Requirements Changes, Property, and Subawards § 31.31 Real property. (a) Title. Subject to the obligations and conditions set forth in this section, title to real property acquired under a grant or subgrant will...

  11. 32 CFR 776.34 - Safekeeping property.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 32 National Defense 5 2010-07-01 2010-07-01 false Safekeeping property. 776.34 Section 776.34... of Professional Conduct § 776.34 Safekeeping property. (a) Safekeeping property. Covered USG attorneys shall not normally hold or safeguard property of a client or third persons in connection...

  12. 36 CFR 261.9 - Property.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... 36 Parks, Forests, and Public Property 2 2011-07-01 2011-07-01 false Property. 261.9 Section 261.9 Parks, Forests, and Public Property FOREST SERVICE, DEPARTMENT OF AGRICULTURE PROHIBITIONS General Prohibitions § 261.9 Property. The following are prohibited: (a) Damaging any natural feature or other...

  13. 24 CFR 203.42 - Rental properties.

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ... 24 Housing and Urban Development 2 2011-04-01 2011-04-01 false Rental properties. 203.42 Section... FAMILY MORTGAGE INSURANCE Eligibility Requirements and Underwriting Procedures Eligible Properties § 203.42 Rental properties. (a) A mortgage on property upon which there is a dwelling to be rented by...

  14. 49 CFR 19.32 - Real property.

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ... 49 Transportation 1 2011-10-01 2011-10-01 false Real property. 19.32 Section 19.32 Transportation... Requirements Property Standards § 19.32 Real property. Each Federal awarding agency shall prescribe requirements for recipients concerning the use and disposition of real property acquired in whole or in...

  15. 10 CFR 603.1315 - Property.

    Code of Federal Regulations, 2013 CFR

    2013-01-01

    ... 10 Energy 4 2013-01-01 2013-01-01 false Property. 603.1315 Section 603.1315 Energy DEPARTMENT OF ENERGY (CONTINUED) ASSISTANCE REGULATIONS TECHNOLOGY INVESTMENT AGREEMENTS Definitions of Terms Used in this Part § 603.1315 Property. Real property, equipment, supplies, and intellectual property,...

  16. 32 CFR 37.1345 - Property.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... 32 National Defense 1 2011-07-01 2011-07-01 false Property. 37.1345 Section 37.1345 National... TECHNOLOGY INVESTMENT AGREEMENTS Definitions of Terms Used in This Part § 37.1345 Property. Real property, equipment, supplies, and intellectual property, unless stated otherwise....

  17. 40 CFR 30.32 - Real property.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... 40 Protection of Environment 1 2013-07-01 2013-07-01 false Real property. 30.32 Section 30.32... NON-PROFIT ORGANIZATIONS Post-Award Requirements Property Standards § 30.32 Real property. EPA shall prescribe requirements for recipients concerning the use and disposition of real property acquired in...

  18. 24 CFR 257.108 - Eligible properties.

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ... 24 Housing and Urban Development 2 2011-04-01 2011-04-01 false Eligible properties. 257.108... properties. (a) A mortgage may be insured under the H4H program only if the property that is to be the security for the mortgage is a one-to-four unit residence. (b) The following property types are eligible...

  19. 15 CFR 14.32 - Real property.

    Code of Federal Regulations, 2011 CFR

    2011-01-01

    ... 15 Commerce and Foreign Trade 1 2011-01-01 2011-01-01 false Real property. 14.32 Section 14.32... ORGANIZATIONS Post-Award Requirements Property Standards § 14.32 Real property. The DoC award shall prescribe requirements for recipients concerning the use and disposition of real property acquired in whole or in...

  20. 24 CFR 203.42 - Rental properties.

    Code of Federal Regulations, 2013 CFR

    2013-04-01

    ... 24 Housing and Urban Development 2 2013-04-01 2013-04-01 false Rental properties. 203.42 Section... FAMILY MORTGAGE INSURANCE Eligibility Requirements and Underwriting Procedures Eligible Properties § 203.42 Rental properties. (a) A mortgage on property upon which there is a dwelling to be rented by...

  1. 36 CFR 1210.32 - Real property.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 36 Parks, Forests, and Public Property 3 2010-07-01 2010-07-01 false Real property. 1210.32 Section 1210.32 Parks, Forests, and Public Property NATIONAL ARCHIVES AND RECORDS ADMINISTRATION GENERAL... EDUCATION, HOSPITALS, AND OTHER NON-PROFIT ORGANIZATIONS Post-Award Requirements Property Standards §...

  2. 36 CFR 1210.32 - Real property.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... 36 Parks, Forests, and Public Property 3 2013-07-01 2012-07-01 true Real property. 1210.32 Section 1210.32 Parks, Forests, and Public Property NATIONAL ARCHIVES AND RECORDS ADMINISTRATION GENERAL RULES..., HOSPITALS, AND OTHER NON-PROFIT ORGANIZATIONS Post-Award Requirements Property Standards § 1210.32...

  3. 20 CFR 435.32 - Real property.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ... 20 Employees' Benefits 2 2010-04-01 2010-04-01 false Real property. 435.32 Section 435.32... ORGANIZATIONS Post-Award Requirements Property Standards § 435.32 Real property. SSA will prescribe requirements for recipients concerning the use and disposition of real property acquired in whole or in part...

  4. 24 CFR 8.31 - Historic properties.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ... the UDAG program the requirements of 36 CFR part 801 shall apply. Accessibility to historic properties... 24 Housing and Urban Development 1 2010-04-01 2010-04-01 false Historic properties. 8.31 Section 8... URBAN DEVELOPMENT Program Accessibility § 8.31 Historic properties. If historic properties...

  5. 36 CFR 261.9 - Property.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... 36 Parks, Forests, and Public Property 2 2013-07-01 2013-07-01 false Property. 261.9 Section 261.9 Parks, Forests, and Public Property FOREST SERVICE, DEPARTMENT OF AGRICULTURE PROHIBITIONS General Prohibitions § 261.9 Property. The following are prohibited: (a) Damaging any natural feature or other...

  6. 29 CFR 1470.31 - Real property.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 29 Labor 4 2010-07-01 2010-07-01 false Real property. 1470.31 Section 1470.31 Labor Regulations... Changes, Property, and Subawards § 1470.31 Real property. (a) Title. Subject to the obligations and conditions set forth in this section, title to real property acquired under a grant or subgrant will...

  7. 32 CFR 776.34 - Safekeeping property.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... 32 National Defense 5 2011-07-01 2011-07-01 false Safekeeping property. 776.34 Section 776.34... of Professional Conduct § 776.34 Safekeeping property. (a) Safekeeping property. Covered USG attorneys shall not normally hold or safeguard property of a client or third persons in connection...

  8. 24 CFR 200.73 - Property development.

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ... Continuing Eligibility Requirements for Existing Projects Property Requirements § 200.73 Property development. (a) The property shall be suitable and principally designed for the intended use, as provided by the... 24 Housing and Urban Development 2 2011-04-01 2011-04-01 false Property development....

  9. 49 CFR 19.32 - Real property.

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ... 49 Transportation 1 2013-10-01 2013-10-01 false Real property. 19.32 Section 19.32 Transportation... Requirements Property Standards § 19.32 Real property. Each Federal awarding agency shall prescribe requirements for recipients concerning the use and disposition of real property acquired in whole or in...

  10. 38 CFR 49.32 - Real property.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... 38 Pensions, Bonuses, and Veterans' Relief 2 2011-07-01 2011-07-01 false Real property. 49.32... NON-PROFIT ORGANIZATIONS Post-Award Requirements Property Standards § 49.32 Real property. Each... real property acquired in whole or in part under awards. Unless otherwise provided by statute,...

  11. 15 CFR 14.32 - Real property.

    Code of Federal Regulations, 2013 CFR

    2013-01-01

    ... 15 Commerce and Foreign Trade 1 2013-01-01 2013-01-01 false Real property. 14.32 Section 14.32... ORGANIZATIONS Post-Award Requirements Property Standards § 14.32 Real property. The DoC award shall prescribe requirements for recipients concerning the use and disposition of real property acquired in whole or in...

  12. 45 CFR 2543.32 - Real property.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... 45 Public Welfare 4 2010-10-01 2010-10-01 false Real property. 2543.32 Section 2543.32 Public... ORGANIZATIONS Post-Award Requirements Property Standards § 2543.32 Real property. Each Federal awarding agency shall prescribe requirements for recipients concerning the use and disposition of real property...

  13. 24 CFR 257.108 - Eligible properties.

    Code of Federal Regulations, 2013 CFR

    2013-04-01

    ... 24 Housing and Urban Development 2 2013-04-01 2013-04-01 false Eligible properties. 257.108... properties. (a) A mortgage may be insured under the H4H program only if the property that is to be the security for the mortgage is a one-to-four unit residence. (b) The following property types are eligible...

  14. 24 CFR 200.73 - Property development.

    Code of Federal Regulations, 2013 CFR

    2013-04-01

    ... Continuing Eligibility Requirements for Existing Projects Property Requirements § 200.73 Property development. (a) The property shall be suitable and principally designed for the intended use, as provided by the... 24 Housing and Urban Development 2 2013-04-01 2013-04-01 false Property development....

  15. 29 CFR 1470.31 - Real property.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... 29 Labor 4 2011-07-01 2011-07-01 false Real property. 1470.31 Section 1470.31 Labor Regulations... Changes, Property, and Subawards § 1470.31 Real property. (a) Title. Subject to the obligations and conditions set forth in this section, title to real property acquired under a grant or subgrant will...

  16. 32 CFR 37.1345 - Property.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... 32 National Defense 1 2013-07-01 2013-07-01 false Property. 37.1345 Section 37.1345 National... TECHNOLOGY INVESTMENT AGREEMENTS Definitions of Terms Used in This Part § 37.1345 Property. Real property, equipment, supplies, and intellectual property, unless stated otherwise....

  17. 36 CFR 327.14 - Public property.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... 36 Parks, Forests, and Public Property 3 2013-07-01 2012-07-01 true Public property. 327.14 Section 327.14 Parks, Forests, and Public Property CORPS OF ENGINEERS, DEPARTMENT OF THE ARMY RULES AND... § 327.14 Public property. (a) Destruction, injury, defacement, removal or any alteration of...

  18. 32 CFR 33.31 - Real property.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... 32 National Defense 1 2013-07-01 2013-07-01 false Real property. 33.31 Section 33.31 National... Post-Award Requirements Changes, Property, and Subawards § 33.31 Real property. (a) Title. Subject to the obligations and conditions set forth in this section, title to real property acquired under...

  19. 45 CFR 2543.32 - Real property.

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ... 45 Public Welfare 4 2013-10-01 2013-10-01 false Real property. 2543.32 Section 2543.32 Public... ORGANIZATIONS Post-Award Requirements Property Standards § 2543.32 Real property. Each Federal awarding agency shall prescribe requirements for recipients concerning the use and disposition of real property...

  20. 32 CFR 37.1345 - Property.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 32 National Defense 1 2010-07-01 2010-07-01 false Property. 37.1345 Section 37.1345 National... TECHNOLOGY INVESTMENT AGREEMENTS Definitions of Terms Used in This Part § 37.1345 Property. Real property, equipment, supplies, and intellectual property, unless stated otherwise....

  1. 10 CFR 603.1315 - Property.

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ... 10 Energy 4 2010-01-01 2010-01-01 false Property. 603.1315 Section 603.1315 Energy DEPARTMENT OF ENERGY (CONTINUED) ASSISTANCE REGULATIONS TECHNOLOGY INVESTMENT AGREEMENTS Definitions of Terms Used in this Part § 603.1315 Property. Real property, equipment, supplies, and intellectual property,...

  2. 38 CFR 43.31 - Real property.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... 38 Pensions, Bonuses, and Veterans' Relief 2 2011-07-01 2011-07-01 false Real property. 43.31... Requirements Changes, Property, and Subawards § 43.31 Real property. (a) Title. Subject to the obligations and conditions set forth in this section, title to real property acquired under a grant or subgrant will...

  3. 31 CFR 535.333 - Properties.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... 31 Money and Finance:Treasury 3 2011-07-01 2011-07-01 false Properties. 535.333 Section 535.333....333 Properties. (a) The term properties as used in § 535.215 means all uncontested and non-contingent liabilities and property interests of the Government of Iran, its agencies, instrumentalities, or...

  4. 10 CFR 603.1315 - Property.

    Code of Federal Regulations, 2011 CFR

    2011-01-01

    ... 10 Energy 4 2011-01-01 2011-01-01 false Property. 603.1315 Section 603.1315 Energy DEPARTMENT OF ENERGY (CONTINUED) ASSISTANCE REGULATIONS TECHNOLOGY INVESTMENT AGREEMENTS Definitions of Terms Used in this Part § 603.1315 Property. Real property, equipment, supplies, and intellectual property,...

  5. 22 CFR 518.32 - Real property.

    Code of Federal Regulations, 2013 CFR

    2013-04-01

    ... 22 Foreign Relations 2 2013-04-01 2009-04-01 true Real property. 518.32 Section 518.32 Foreign... Property Standards § 518.32 Real property. Each Federal awarding agency shall prescribe requirements for recipients concerning the use and disposition of real property acquired in whole or in part under...

  6. 45 CFR 2541.310 - Real property.

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ... 45 Public Welfare 4 2013-10-01 2013-10-01 false Real property. 2541.310 Section 2541.310 Public... Changes, Property and Subawards § 2541.310 Real property. (a) Title. Subject to the obligations and conditions set forth in this section, title to real property acquired under a grant or subgrant will...

  7. 32 CFR 174.13 - Personal property.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... for its material content or as a source of commonly used components). This property consists of... personal property). This property includes materials or parts used in a manufacturing or repair function... community or LRA through the appropriate State Agency for Surplus Property (SASP) under 41 CFR part...

  8. 17 CFR 190.09 - Member property.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ... 17 Commodity and Securities Exchanges 1 2010-04-01 2010-04-01 false Member property. 190.09... Member property. (a) Member property. “Member property” means, in connection with a clearing organization bankruptcy, the property which may be used to pay that portion of the net equity claim of a member which...

  9. 15 CFR 24.31 - Real property.

    Code of Federal Regulations, 2011 CFR

    2011-01-01

    ... 15 Commerce and Foreign Trade 1 2011-01-01 2011-01-01 false Real property. 24.31 Section 24.31..., Property, and Subawards § 24.31 Real property. (a) Title. Subject to the obligations and conditions set forth in this section, title to real property acquired under a grant or subgrant will vest...

  10. Relativistic Effects on Chemical Properties.

    ERIC Educational Resources Information Center

    McKelvey, Donald R.

    1983-01-01

    Discusses how anomalous chemical properties may be explained by considering relativistic effects. Traces development of the relativistic wave equation (Dirac equation) starting with the Borh treatment of the hydrogen atom and discusses major consequences of the Dirac equation. Suggests that these topics receive greater attention in the…

  11. The Functional Properties of Language.

    ERIC Educational Resources Information Center

    Garvin, Paul L.

    This paper asks whether the imprecision and complexity of natural language, as opposed to the language of science or logic, represent flaws or essential functional properties. It is argued that ambiguity can be manipulated by the speaker through environmentally derived characteristics. A discussion follows on the study of the functions of language…

  12. Cesium Eluate Physical Property Determination

    SciTech Connect

    Baich, M.A.

    2001-02-13

    Two bench-scale process simulations of the proposed cesium eluate evaporation process of concentrating eluate produced in the Hanford Site Waste Treatment Plant were conducted. The primary objective of these experiments was to determine the physical properties and the saturation concentration of the eluate evaporator bottoms while producing condensate approximately 0.50 molar HN03.

  13. Shell Games: Uncovering Periodic Properties.

    ERIC Educational Resources Information Center

    Lamb, William G.

    1983-01-01

    Describes activities (demonstrations/experiments) used to introduce history of periodic properties--without electrons, orbitals, filling shells, or any conception of atoms beyond Dalton's model. Activities supplement first chapter in a currently available chemistry text. Indicates potential danger of experiments if proper safety precautions are…

  14. Surface properties of ocean fronts

    NASA Technical Reports Server (NTRS)

    Wolff, P. M.; Hubert, W. E.

    1976-01-01

    Background information on oceanic fronts is presented and the results of several models which were developed to study the dynamics of oceanic fronts and their effects on various surface properties are described. The details of the four numerical models used in these studies are given in separate appendices which contain all of the physical equations, program documentation and running instructions for the models.

  15. Polygon Properties: What Is Possible?

    ERIC Educational Resources Information Center

    Rodrigue, Paulette R.; Robichaux, Rebecca R.

    2010-01-01

    Sorting shapes and solving riddles develop and advance children's geometric thinking and understanding while promoting mathematical communication, cooperative learning, and numerous representations. This article presents a brief summary of how children develop an understanding of the properties of geometric shapes as well as a description of the…

  16. Property Blocks: Games and Activities.

    ERIC Educational Resources Information Center

    Humphreys, Alan, Ed.; Dailey, Jean, Ed.

    This pamphlet describes the property blocks produced by MINNEMAST, and discusses their use in the development of thinking processes. Classification systems, including block diagrams and tree diagrams, are discussed. Sixteen classroom activities and eleven games which use the blocks are described. Suggestions to the teacher for further reading are…

  17. AEDS Property Classification Code Manual.

    ERIC Educational Resources Information Center

    Association for Educational Data Systems, Washington, DC.

    The control and inventory of property items using data processing machines requires a form of numerical description or code which will allow a maximum of description in a minimum of space on the data card. An adaptation of a standard industrial classification system is given to cover any expendable warehouse item or non-expendable piece of…

  18. Phosphorene: Fabrication, Properties, and Applications.

    PubMed

    Kou, Liangzhi; Chen, Changfeng; Smith, Sean C

    2015-07-16

    Phosphorene, the single- or few-layer form of black phosphorus, was recently rediscovered as a two-dimensional layered material holding great promise for applications in electronics and optoelectronics. Research into its fundamental properties and device applications has since seen exponential growth. In this Perspective, we review recent progress in phosphorene research, touching upon topics on fabrication, properties, and applications; we also discuss challenges and future research directions. We highlight the intrinsically anisotropic electronic, transport, optoelectronic, thermoelectric, and mechanical properties of phosphorene resulting from its puckered structure in contrast to those of graphene and transition-metal dichalcogenides. The facile fabrication and novel properties of phosphorene have inspired design and demonstration of new nanodevices; however, further progress hinges on resolutions to technical obstructions like surface degradation effects and nonscalable fabrication techniques. We also briefly describe the latest developments of more sophisticated design concepts and implementation schemes that address some of the challenges in phosphorene research. It is expected that this fascinating material will continue to offer tremendous opportunities for research and development for the foreseeable future.

  19. Magnetorheological properties of some ferrofluids

    NASA Astrophysics Data System (ADS)

    Timko, M.; Zentko, A.; Zentkova, M.; Koneracka, M.; Kellnerova, V.; Zentkova, A.; Stepan, M.; Barbora, J.

    1994-03-01

    The effect of an external magnetic field, velocity of flow and concentration of the magnetite on the rheological properties of some mineral oil based ferrofluids have been investigated. It has been shown that the increase of viscosity in magnetic field depends upon the velocity flow of ferrofluid and concentration of magnetite.

  20. Semiconductor alloys - Structural property engineering

    NASA Technical Reports Server (NTRS)

    Sher, A.; Van Schilfgaarde, M.; Berding, M.; Chen, A.-B.

    1987-01-01

    Semiconductor alloys have been used for years to tune band gaps and average bond lengths to specific applications. Other selection criteria for alloy composition, and a growth technique designed to modify their structural properties, are presently considered. The alloys Zn(1-y)Cd(y)Te and CdSe(y)Te(1-y) are treated as examples.

  1. Surface properties of HMX crystal

    NASA Technical Reports Server (NTRS)

    Yee, R. Y.; Adicoff, A.; Dibble, E. J.

    1980-01-01

    The surface properties of Beta-HMX crystals were studied. The surface energies of three principal crystal faces were obtained by measuring contact angles with several reference liquids. The surface energies and polarity of the three crystal faces are found to be different.

  2. Thermoelectric properties of boron carbides

    SciTech Connect

    Aselage, T.; Emin, D.; Wood, C.

    1988-01-01

    Boron carbides are ceramic materials with unusual properties and applications. These refractory materials (T/sub m/ > 2600K) exist as a single phase over a wide range of stoichiometries, from 20 a/o carbon to less than 10 a/o carbon (Bouchacourt and Thevenot 1981). The relatively low density (approx.2.5 g/cm/sup 3/) and exceptional hardness lead to applications in the area of ceramic armor. In addition, /sup 10/B has a large capture cross section for thermal neutrons. This fact, along with the robust nature of the structure in a high radiation environment, leads to the use of boron carbides as nuclear reactor control materials. Because of a combination of unusual high temperature electronic and thermal properties, boron carbides also make efficient very high temperature (p-type) thermoelectrics. In this paper, we shall review the electrical and thermal properties of boron carbides and describe recent progress in understanding these properties. 13 refs., 4 figs.

  3. Property Attribution in Combined Concepts

    ERIC Educational Resources Information Center

    Spalding, Thomas L.; Gagné, Christina L.

    2015-01-01

    Recent research shows that the judged likelihood of properties of modified nouns ("baby ducks have webbed feet") is reduced relative to judgments for unmodified nouns ("ducks have webbed feet"). This modification effect has been taken as evidence both for and against the idea that combined concepts automatically inherit…

  4. Transport Properties for Combustion Modeling

    SciTech Connect

    Brown, N.J.; Bastein, L.; Price, P.N.

    2010-02-19

    This review examines current approximations and approaches that underlie the evaluation of transport properties for combustion modeling applications. Discussed in the review are: the intermolecular potential and its descriptive molecular parameters; various approaches to evaluating collision integrals; supporting data required for the evaluation of transport properties; commonly used computer programs for predicting transport properties; the quality of experimental measurements and their importance for validating or rejecting approximations to property estimation; the interpretation of corresponding states; combination rules that yield pair molecular potential parameters for unlike species from like species parameters; and mixture approximations. The insensitivity of transport properties to intermolecular forces is noted, especially the non-uniqueness of the supporting potential parameters. Viscosity experiments of pure substances and binary mixtures measured post 1970 are used to evaluate a number of approximations; the intermediate temperature range 1 < T* < 10, where T* is kT/{var_epsilon}, is emphasized since this is where rich data sets are available. When suitable potential parameters are used, errors in transport property predictions for pure substances and binary mixtures are less than 5 %, when they are calculated using the approaches of Kee et al.; Mason, Kestin, and Uribe; Paul and Warnatz; or Ern and Giovangigli. Recommendations stemming from the review include (1) revisiting the supporting data required by the various computational approaches, and updating the data sets with accurate potential parameters, dipole moments, and polarizabilities; (2) characterizing the range of parameter space over which the fit to experimental data is good, rather than the current practice of reporting only the parameter set that best fits the data; (3) looking for improved combining rules, since existing rules were found to under-predict the viscosity in most cases; (4

  5. Mechanical properties of metal dihydrides

    DOE PAGES

    Schultz, Peter A.; Snow, Clark S.

    2016-02-04

    First-principles calculations are used to characterize the bulk elastic properties of cubic and tetragonal phase metal dihydrides,more » $$\\text{M}{{\\text{H}}_{2}}$$ {$$\\text{M}$$ = Sc, Y, Ti, Zr, Hf, lanthanides} to gain insight into the mechanical properties that govern the aging behavior of rare-earth di-tritides as the constituent 3H, tritium, decays into 3He. As tritium decays, helium is inserted in the lattice, the helium migrates and collects into bubbles, that then can ultimately create sufficient internal pressure to rupture the material. The elastic properties of the materials are needed to construct effective mesoscale models of the process of bubble growth and fracture. Dihydrides of the scandium column and most of the rare-earths crystalize into a cubic phase, while dihydrides from the next column, Ti, Zr, and Hf, distort instead into the tetragonal phase, indicating incipient instabilities in the phase and potentially significant changes in elastic properties. We report the computed elastic properties of these dihydrides, and also investigate the off-stoichiometric phases as He or vacancies accumulate. As helium builds up in the cubic phase, the shear moduli greatly soften, converting to the tetragonal phase. Conversely, the tetragonal phases convert very quickly to cubic with the removal of H from the lattice, while the cubic phases show little change with removal of H. Finally, the source and magnitude of the numerical and physical uncertainties in the modeling are analyzed and quantified to establish the level of confidence that can be placed in the computational results, and this quantified confidence is used to justify using the results to augment and even supplant experimental measurements.« less

  6. Mechanical properties of metal dihydrides

    NASA Astrophysics Data System (ADS)

    Schultz, Peter A.; Snow, Clark S.

    2016-03-01

    First-principles calculations are used to characterize the bulk elastic properties of cubic and tetragonal phase metal dihydrides, \\text{M}{{\\text{H}}2} {\\text{M}   =  Sc, Y, Ti, Zr, Hf, lanthanides} to gain insight into the mechanical properties that govern the aging behavior of rare-earth di-tritides as the constituent 3H, tritium, decays into 3He. As tritium decays, helium is inserted in the lattice, the helium migrates and collects into bubbles, that then can ultimately create sufficient internal pressure to rupture the material. The elastic properties of the materials are needed to construct effective mesoscale models of the process of bubble growth and fracture. Dihydrides of the scandium column and most of the rare-earths crystalize into a cubic phase, while dihydrides from the next column, Ti, Zr, and Hf, distort instead into the tetragonal phase, indicating incipient instabilities in the phase and potentially significant changes in elastic properties. We report the computed elastic properties of these dihydrides, and also investigate the off-stoichiometric phases as He or vacancies accumulate. As helium builds up in the cubic phase, the shear moduli greatly soften, converting to the tetragonal phase. Conversely, the tetragonal phases convert very quickly to cubic with the removal of H from the lattice, while the cubic phases show little change with removal of H. The source and magnitude of the numerical and physical uncertainties in the modeling are analyzed and quantified to establish the level of confidence that can be placed in the computational results, and this quantified confidence is used to justify using the results to augment and even supplant experimental measurements.

  7. Physical properties of evaporite minerals

    USGS Publications Warehouse

    Robertson, Eugene C.

    1962-01-01

    The data in the following tables were abstracted from measurements of physical properties of evaporite minerals or of equivalent synthetic compounds. The compounds considered are the halide and sulfate salts which supposedly precipitated from evaporating ocean water and which form very extensive and thick "rock salt" beds. These beds are composed almost entirely of NaCl. In places where the beds are deeply buried and where fractures occur in the overlying rocks, the salt is plastically extruded upward as in a pipe to form the "salt domes". Most of the tables are for NaCl, both the natural (halite) and the synthetic salt, polycrystalline and single crystals. These measurements have been collected for use 1) in studies on storage of radioactive wastes in salt domes or beds, 2) in calculations concerned with nuclear tests in salt domes and beds, and 3) in studies of phenomena in salt of geologic interest. Rather than an exhaustive compilation of physical property measurements, there tables represent a summary of data from accessible sources. As limitations of time have presented making a more systematic and comprehensive selection, the data given may seem arbitrarily chosen. Some of the data listed are old, and newer, more accurate data are undoubtedly available. Halite (an synthetic NaCl) has been very thoroughly studied because of its relatively simple and highly symmetrical crystal structure, its easy availability naturally or synthetically, both in single crystals and polycrystalline, its useful and scientifically interesting properties, and its role as a compound of almost purely ionic bonding. The measurements of NaCl in the tables, however, represent only a small part of the total number of observations; discrimination was necessary to keep the size of the tabulations manageable. The physical properties of the evaporite minerals other than halite and sylvite have received only desultory attention of experiementalists, and appear in only a few tables. The

  8. Mechanical properties of warped membranes.

    PubMed

    Košmrlj, Andrej; Nelson, David R

    2013-07-01

    We explore how a frozen background metric affects the mechanical properties of planar membranes with a shear modulus. We focus on a special class of "warped membranes" with a preferred random height profile characterized by random Gaussian variables h(q) in Fourier space with zero mean and variance <|h(q)|(2)>~q(-d(h)) and show that in the linear response regime the mechanical properties depend dramatically on the system size L for d(h)≥2. Membranes with d(h)=4 could be produced by flash polymerization of lyotropic smectic liquid crystals. Via a self-consistent screening approximation we find that the renormalized bending rigidity increases as κ(R)~L((d(h)-2)/2) for membranes of size L, while the Young and shear moduli decrease according to Y(R),μ(R)~L(-(d(h)-2)/2) resulting in a universal Poisson ratio. Numerical results show good agreement with analytically determined exponents.

  9. Fluorescence properties of Neurospora tyrosinase.

    PubMed

    Beltramini, M; Lerch, K

    1982-07-01

    Some structural properties of Neurospora tyrosinase have been studied by fluorescence spectroscopy. The emission spectra observed for oxy-, deoxy-, met- and apo-tyrosinase and the Co2+-substituted form are indicative of a protein containing buried tryptophan residues. By using acrylamide and iodide, part of the emission is quenched, indicating heterogeneity in the tryptophan environment. Upon binding of Cu2+ or Co2+ to apo-tyrosinase, a marked decrease of the tryptophan quantum yield is observed. A further decrease in emission intensity results from the binding of molecular O2 to the deoxy form. The fluorescent probe 8-anilinonaphthalene-1-sulphonate binds to tyrosinase only when the metal ions are removed. Reconstitution of apo-tyrosinase with Cu2+ completely displaces the probe, suggesting that 8-anilinonaphthalene-1-sulphonate binds to apo-tyrosinase at the active site. The fluorescence properties of Neurospora tyrosinase are compared with those of haemocyanin. PMID:6215031

  10. Optical properties of thylakoid stacks

    NASA Astrophysics Data System (ADS)

    Shibayev, Pavel; Shibaev, Petr

    2012-02-01

    Optical properties of grana are simulated by means of 4x4 matrix approach (Berreman method). The results of calculations lead to a conclusion that even small degree of chirality, that may be present in a granum structure, results in the dramatic changes of its optical properties. Depending on the birefringence and degree of chirality in granum organization the reflection of left or right handed circularly polarized light can be greatly suppressed. This can explain the light induced difference in the growth of pea and lentil shoots irradiated by left and right handed circularly polarized light [1]. [4pt] [1] Pavel P. Shibayev, R.G. Pergolizzi, The effect of circularly polarized light on the growth of plants, International journal of botany, 7, 113 (2011)

  11. Dynamic properties of ceramic materials

    SciTech Connect

    Grady, D.E.

    1995-02-01

    The present study offers new data and analysis on the transient shock strength and equation-of-state properties of ceramics. Various dynamic data on nine high strength ceramics are provided with wave profile measurements, through velocity interferometry techniques, the principal observable. Compressive failure in the shock wave front, with emphasis on brittle versus ductile mechanisms of deformation, is examined in some detail. Extensive spall strength data are provided and related to the theoretical spall strength, and to energy-based theories of the spall process. Failure waves, as a mechanism of deformation in the transient shock process, are examined. Strength and equation-of-state analysis of shock data on silicon carbide, boron carbide, tungsten carbide, silicon dioxide and aluminum nitride is presented with particular emphasis on phase transition properties for the latter two. Wave profile measurements on selected ceramics are investigated for evidence of rate sensitive elastic precursor decay in the shock front failure process.

  12. Some Properties of Topological Geons

    NASA Astrophysics Data System (ADS)

    Bugajska, Krystyna

    1987-07-01

    We investigate the Finkelstein-Misner geons for a non-simply-connected space-time manifold ( M, g 0). We use relations between different Lorentzian structures unequivalent to g 0 and topological properties of M given by the Morse theory. It implies that to some pieces of geons we have to associate Wheeler's “worm-holes.” Geons that correspond to time-orientable Lorentz structures are related to g 0 by Morse functions that describe the attaching of a handle of index one. In the case of geons associated to time-nonorientable Lorentzian structures, appropriate handles are related to loops along which the notion of time reverses. If we assume electromagnetic properties of geons, then only four species, “ v”, “ e”, “ p”, “ m”, of different geons can exist and geon “ m” has to decay according to “ m”→“ v”+“ p”+“ e”.

  13. Challenges ahead on property front.

    PubMed

    Lea, Graham

    2013-03-01

    As the dissolution of the PCTs draws closer, and the assets and buildings formerly owned by them transfer, at the start of April, to the new NHS Property Services Company (see also HEJ - February 2013), there remains a considerable amount to be done by those involved in the real estate aspects of the NHS reorganisation. So says Graham Lea, a partner, and the national head of the company's real estate team, at law firm, Hempsons. He explains that, for NHS estates personnel, occupiers, developers, and investors, there are still a number of key issues to clarify, not least how property development decisions will be taken, and the prospects for investment in an ageing estate.

  14. Vesta surface thermal properties map

    USGS Publications Warehouse

    Capria, Maria Teresa; Tosi, F.; De Santis, Maria Cristina; Capaccioni, F.; Ammannito, E.; Frigeri, A.; Zambon, F; Fonte, S.; Palomba, E.; Turrini, D.; Titus, T.N.; Schroder, S.E.; Toplis, M.J.; Liu, J.Y.; Combe, J.-P.; Raymond, C.A.; Russell, C.T.

    2014-01-01

    The first ever regional thermal properties map of Vesta has been derived from the temperatures retrieved by infrared data by the mission Dawn. The low average value of thermal inertia, 30 ± 10 J m−2 s−0.5 K−1, indicates a surface covered by a fine regolith. A range of thermal inertia values suggesting terrains with different physical properties has been determined. The lower thermal inertia of the regions north of the equator suggests that they are covered by an older, more processed surface. A few specific areas have higher than average thermal inertia values, indicative of a more compact material. The highest thermal inertia value has been determined on the Marcia crater, known for its pitted terrain and the presence of hydroxyl in the ejecta. Our results suggest that this type of terrain can be the result of soil compaction following the degassing of a local subsurface reservoir of volatiles.

  15. Accelerated Characterization of Polymer Properties

    SciTech Connect

    R. Wroczynski; l. Brewer; D. Buckley; M. Burrell; R. Potyrailo

    2003-07-30

    This report describes the efforts to develop a suite of microanalysis techniques that can rapidly measure a variety of polymer properties of industrial importance, including thermal, photo-oxidative, and color stability; as well as ductility, viscosity, and mechanical and antistatic properties. Additional goals of the project were to direct the development of these techniques toward simultaneous measurements of multiple polymer samples of small size in real time using non-destructive and/or parallel or rapid sequential measurements, to develop microcompounding techniques for preparing polymers with additives, and to demonstrate that samples prepared in the microcompounder could be analyzed directly or used in rapid off-line measurements. These enabling technologies are the crucial precursors to the development of high-throughput screening (HTS) methodologies for the polymer additives industry whereby the rate of development of new additives and polymer formulations can be greatly accelerated.

  16. Obstructions to Sampling Qualitative Properties

    PubMed Central

    Reimers, Arne C.

    2015-01-01

    Background Sampling methods have proven to be a very efficient and intuitive method to understand properties of complicated spaces that cannot easily be computed using deterministic methods. Therefore, sampling methods became a popular tool in the applied sciences. Results Here, we show that sampling methods are not an appropriate tool to analyze qualitative properties of complicated spaces unless RP = NP. We illustrate these results on the example of the thermodynamically feasible flux space of genome-scale metabolic networks and show that with artificial centering hit and run (ACHR) not all reactions that can have variable flux rates are sampled with variables flux rates. In particular a uniform sample of the flux space would not sample the flux variabilities completely. Conclusion We conclude that unless theoretical convergence results exist, qualitative results obtained from sampling methods should be considered with caution and if possible double checked using a deterministic method. PMID:26287384

  17. Fluorescence properties of Neurospora tyrosinase.

    PubMed Central

    Beltramini, M; Lerch, K

    1982-01-01

    Some structural properties of Neurospora tyrosinase have been studied by fluorescence spectroscopy. The emission spectra observed for oxy-, deoxy-, met- and apo-tyrosinase and the Co2+-substituted form are indicative of a protein containing buried tryptophan residues. By using acrylamide and iodide, part of the emission is quenched, indicating heterogeneity in the tryptophan environment. Upon binding of Cu2+ or Co2+ to apo-tyrosinase, a marked decrease of the tryptophan quantum yield is observed. A further decrease in emission intensity results from the binding of molecular O2 to the deoxy form. The fluorescent probe 8-anilinonaphthalene-1-sulphonate binds to tyrosinase only when the metal ions are removed. Reconstitution of apo-tyrosinase with Cu2+ completely displaces the probe, suggesting that 8-anilinonaphthalene-1-sulphonate binds to apo-tyrosinase at the active site. The fluorescence properties of Neurospora tyrosinase are compared with those of haemocyanin. PMID:6215031

  18. Adhesion properties of gecko setae

    NASA Astrophysics Data System (ADS)

    Hill, Ginel; Peattie, Anne; Daniels, Roxanne; Full, Robert; Kenny, Thomas

    2005-03-01

    Millions of keratin hairs on gecko feet, called setae, act as a spectacular dry adhesive. Each seta branches into hundreds of smaller fibers that terminate in spatula-shaped ends. Morphological differences between the setae from different gecko species are suspected to affect both single-seta and whole-animal adhesion properties. Single-seta adhesive force measurements made using a MEMS piezoresistive cantilever capable of two-axis measurements are presented.

  19. Cryogenic properties of unidirectional composites

    NASA Astrophysics Data System (ADS)

    Reed, R. P.; Golda, M.

    The tensile, compressive, fatigue, thermal expansion, thermal conductivity and specific heat of unidirectional laminates reinforced with boron, alumina, aramid, S-glass, E-glass, and high strength, high modulus and medium modulus carbon fibres are reviewed. The ratio of strength to thermal conductivity is used to assess the suitability of various fibre-reinforced laminates for supporting struts (experiencing compression) or straps (experiencing tension) at cryogenic temperatures. The relationships between laminate properties and reinforcement fibres are discussed.

  20. Thermal properties for vegetation cover

    NASA Astrophysics Data System (ADS)

    Aleksyutina, D.; Motenko, R.

    2011-12-01

    Different samples of undisturbed vegetation cover were studied under laboratory conditions. Samples were collected from New Chara city, north of the Chita region. Vegetation cover in this area is represented by moss, lichen and tussock growth. Thermal properties were investigated by the I-st type regular mode method (a-calorimeter), the freezing temperature was studied by cryoscopic methods. The dry density of sampled specimens varies from 0.04 to 0.24 g/cm3, and humidity varies from 250 to 375 percent. The freezing temperature depends on moisture content and varies from -0.2 to 0 degrees centigrade. The vegetation cover had low thermal conductivities which varies from 0.05 to 0.46 W/(m*K) in unfrozen conditions, and from 0.07 to 1.14 W/(m*K) in frozen conditions, according to density and moisture content. Diffusivity of samples varies from 0.073*10-6 to 0.114*10-6 m2/s in thawed conditions, and from 0.174*10-6 to 0.584*10-6 m2/s in frozen conditions. The sod (bottom of vegetation cover) had relatively high thermal properties. Thermal properties of vegetation cover and peat (turf) were compared. The thermal conductivity of peat was much higher than thermal conductivity of vegetation cover. This data may be used for modeling of the thickness of the seasonally thawed layer and ground temperature variation. The knowledge of thermal properties of these samples allows us to view vegetation cover as a separate layer of geological section.

  1. Property Status of Lunar Material

    NASA Astrophysics Data System (ADS)

    Pop, V.

    Most of the lunar material in private hands is of meteoric origin, and its property sta- tus does not present many challenges. The intention of Applied Space Resources, Inc, to fly a commercial lunar sample return mission and to subsequently offer lunar ma- terial for sale, raises the issue of the legality of exploitation and private ownership of retrieved lunar material. Lunar samples have been returned in the past by means of the Apollo (US) and Luna (USSR) missions and, while most of the material re- mains government property and is used for scientific means, a small fraction has been transferred abroad and some has entered the private market. Apollo-collected moon- rocks have been offered, symbolically, to heads of States, and some foreign nations have subsequently transferred ownership to private individuals. The same, lunar ma- terial of Soviet provenience has entered the private market, this forming a valuable legal precedent for the lawfulness of sale of lunar material. Recently, plans were made public to award the Apollo astronauts with lunar rocks. While in the US there is a popular misconception that it is illegal to own lunar material, the truth lies elsewhere. As the Apollo samples are the property of the US government and a small fraction was stolen, lost, or misplaced, the US government intends to recover this material, unlawfully owned. In the same time, a significant number of individuals have been prosecuted for offering for sale fake lunar rocks. The present paper will analyse the different categories of lunar material according to its ownership status, and will as- sert that private property of lunar material is lawful, and lunar material that will be returned in the future will be able to enter the market without hindrances.

  2. Hadron Properties with FLIC Fermions

    SciTech Connect

    James Zanotti; Wolodymyr Melnitchouk; Anthony Williams; J Zhang

    2003-07-01

    The Fat-Link Irrelevant Clover (FLIC) fermion action provides a new form of nonperturbative O(a)-improvement in lattice fermion actions offering near continuum results at finite lattice spacing. It provides computationally inexpensive access to the light quark mass regime of QCD where chiral nonanalytic behavior associated with Goldstone bosons is revealed. The motivation and formulation of FLIC fermions, its excellent scaling properties and its low-lying hadron mass phenomenology are presented.

  3. Fuel properties of cottonseed oil

    SciTech Connect

    Karaosmanoglu, F.; Tueter, M.; Goellue, E.; Yanmaz, S.; Altintig, E.

    1999-11-01

    The use of vegetable oils as fuel alternatives has an exceptional importance in the field of research. In this study, evaluation possibilities of cottonseed oil have been investigated as an alternative candidate for diesel fuel and fuel oil. The fuel property tests were performed according to standard analysis methods for oil and fuel. An overall evaluation of the results indicates that cottonseed oil can be proposed as a possible green substitute for fuel.

  4. Atlas of soil reflectance properties

    NASA Technical Reports Server (NTRS)

    Stoner, E. R.; Baumgardner, M. F.; Biehl, L. L.; Robinson, B. F.

    1979-01-01

    A compendium of soil spectral reflectance curves together with soil test results and site information is presented in an abbreviated manner listing those soil properties most important in influencing soil reflectance. Results are presented for 251 soils from 39 states and Brazil. A narrative key describes relationships between soil parameters and reflectance curves. All soils are classified according to the U.S. soil taxonomy and soil series name for ease of identification.

  5. [Antimetastatic properties of aloe juice].

    PubMed

    Gribel', N V; Pashinskiĭ, V G

    1986-01-01

    An evaluation of antimetastatic properties of succus Aloës was carried out using three types of experimental tumors of mice and rats. It was found that succus Aloës treatment contributes to reduction of tumor mass, metastatic foci and metastasis frequency at different stages of tumor progress without affecting major tumor growth. Succus Aloës potentiates the antitumor effect of 5-fluorouracil and cyclophosphamide as components of combination chemotherapy.

  6. Electroweak properties of light nuclei

    NASA Astrophysics Data System (ADS)

    Pastore, Saori

    2016-03-01

    In this talk, I will review the present understanding of nuclear electroweak properties of light nuclei, including electromagnetic moments, form factors and transitions, as well as selected beta decays in A <= 10 nuclei. Emphasis will be on calculations based on nuclear Hamiltonians that include two- and three-nucleon realistic potentials, along with one- and two-body electroweak currents. Work supported by the U.S. DOE, Office of Nuclear Physics, under contract DE-AC52-06NA25396.

  7. Photophysical properties of porphyrin photosensitizers

    NASA Astrophysics Data System (ADS)

    Dadeko, A. V.; Murav'eva, T. D.; Starodubtsev, A. M.; Gorelov, S. I.; Dobrun, M. V.; Kris'ko, T. K.; Bagrov, I. V.; Belousova, I. M.; Ponomarev, G. V.

    2015-10-01

    The photodynamic properties of a new photosensitizer—dimegin (disodium salt of 2,4-di(1- methoxyethyl)-deuteroporphyrin-IX)—are studied in comparison with the properties of photosensitizers used in medical practice, namely, Photoditazine (dimethylglucamine salt of chlorin e6) and Radachlorin (trisodium salt of chlorin e6). The spectral characteristics, singlet oxygen generation ability, luminescence efficiency, and photostability of these photosensitizers are studied upon irradiation by light-emitting diode arrays in different spectral ranges. The ability of photosensitizers to generate singlet oxygen was estimated with the use of tryptophan as a chemical trap. The photostability was estimated by a change in the optical density of solutions in the Soret band after irradiation. It is shown that the photodynamic properties are related to the specific features of the optical absorption spectrum of the material. The results of this work testify to the possibility of using the Dimegin photosensitizer as an efficient drug for photodynamic therapy and fluorescent diagnostics. Comparative studies of luminescence, singlet oxygen generation, and photostability have shown that Dimegin surpasses Photoditazine and Radachlorin in many characteristics. In the future, these studies will help to choose the most efficient irradiation sources for photodynamic therapy and fluorescent diagnostic.

  8. Viscoelastic properties of levan polysaccharides

    NASA Astrophysics Data System (ADS)

    Noll, Kenneth; Rende, Deniz; Ozisik, Rahmi; Toksoy-Oner, Ebru

    2014-03-01

    Levan is a naturally occurring polysaccharide that is composed of β-D-fructofuranose units with β(2-6) linkages between fructose rings. It is synthesized by the action of a secreted levansucrase (EC 2.4.1.10) that converts sucrose into the levan externally (exopolysaccharide). Levan is a homopolysaccharide that is non-toxic, water soluble,, and has anti-tumor activity and low immunological response. Therefore, levan presents great potential to be used as a novel functional biopolymer in foods, feeds, cosmetics, pharmaceutical and chemical industries. Despite these favorable properties, levan has a moderately low mechanical properties and poor film forming capability. In the current study, the agglomeration behavior of levan in water and in saline solutions was investigated at 298 and 310 K by dynamic light scattering and transmission electron microscopy (TEM). The viscoelastic properties of neat and oxidized levan films were studied via nanoindentation experiments in the quasi-static and dynamic modes The material is partially based upon work supported by NSF under Grant Nos. 1200270 and 1003574, and TUBITAK 111M232.

  9. Property rights in genetic information.

    PubMed

    Spinello, Richard A

    2004-01-01

    The primary theme of this paper is the normative case against ownership of one's genetic information along with the source of that information (usually human tissues samples). The argument presented here against such "upstream" property rights is based primarily on utilitarian grounds. This issue has new salience thanks to the Human Genome Project and "bio-prospecting" initiatives based on the aggregation of genetic information, such as the one being managed by deCODE Genetics in Iceland. The rationale for ownership is twofold: ownership will protect the basic human rights of privacy and autonomy and it will enable the data subjects to share in the tangible benefits of the genetic research. Proponents of this viewpoint often cite the principle of genetic exceptionalism, which asserts that genetic information needs a higher level of protection than other kinds of personal information such as financial data. We argue, however, that the recognition of such ownership rights would lead to inefficiency along with the disutility of genetic discoveries. Biomedical research will be hampered if property rights in genes and genetic material are too extensive. We contend that other mechanisms such as informed consent and strict confidentiality rules can accomplish the same result as a property right without the liabilities of an exclusive entitlement. PMID:16969959

  10. Tribological properties of coal slurries

    NASA Technical Reports Server (NTRS)

    Fusaro, Robert L.; Schrubens, Dale L.

    1987-01-01

    A pin-on-disk tribometer was used to study the tribological properties of methyl alcohol-coal slurries. Friction coefficients, steel pin wear rates and wear surface morphological studies were conducted on AISI 440C HT and M-50 bearing steels which were slid dry and in solutions of methyl alcohol, methyl alcohol-fine coal particles, and methyl alcohol-fine coal particles-flocking additive. The latter was an oil derived from coal and originally intended to be added to the coal slurry to improve the sedimentation and rheology properties. The results of this study indicated that the addition of the flocking additive to the coal slurry markedly improved the tribological properties, especially wear. In addition, the type of steel was found to be very important in determining the type of wear that took place. Cracks and pits were found on the M-50 steel pin wear surfaces that slid in the coal slurries while 440C HT steel pins showed none.

  11. [Antioxidant properties of essential oils].

    PubMed

    Misharina, T A; Terenina, M B; Krikunova, N I

    2009-01-01

    By the method of capillary gas-liquid chromatography we studied antioxidant properties and stability during the storage of hexane solutions of 14 individual essential oils from black and white pepper (Piper nigrum L.), cardamom (Elettaria cardamomum L.), nutmeg (Myristica fragrans Houtt.), mace (Myristica fragrans Houtt), juniperberry (Juniperus communis L.), seed of fennel (Foeniculum vulgare Mill., var. dulce Thelling), caraway (Carvum carvi L.), dry leaves of cinnamon (Cinnamomum zeylanicum Bl.), marjoram (Origanum majorana L.), laurel (Laurus nobilis L.), ginger (Zingiber officinale L.), garlic (Allium sativum L.), and clove bud (Caryophyllus aromaticus L.). We assessed the antioxidant properties by the oxidation of aliphatic aldehyde (trans-2-hexenal) into the according carbon acid. We established that essential oils of garlic, clove bud, ginger and leaves of cinnamon have the maximal efficiency of inhibition of hexenal oxidation (80-93%), while black pepper oil has the minimal (49%). Antioxidant properties of essential oils with a high content of substituted phenols depended poorly on its concentration in model systems. We studied the changes in essential oils content during the storage of its hexane solutions for 40 days in the light and out of the light and compared it with the stability of essential oils stored for a year out of the light. PMID:20067158

  12. Dynamic properties of force fields.

    PubMed

    Vitalini, F; Mey, A S J S; Noé, F; Keller, B G

    2015-02-28

    Molecular-dynamics simulations are increasingly used to study dynamic properties of biological systems. With this development, the ability of force fields to successfully predict relaxation timescales and the associated conformational exchange processes moves into focus. We assess to what extent the dynamic properties of model peptides (Ac-A-NHMe, Ac-V-NHMe, AVAVA, A10) differ when simulated with different force fields (AMBER ff99SB-ILDN, AMBER ff03, OPLS-AA/L, CHARMM27, and GROMOS43a1). The dynamic properties are extracted using Markov state models. For single-residue models (Ac-A-NHMe, Ac-V-NHMe), the slow conformational exchange processes are similar in all force fields, but the associated relaxation timescales differ by up to an order of magnitude. For the peptide systems, not only the relaxation timescales, but also the conformational exchange processes differ considerably across force fields. This finding calls the significance of dynamic interpretations of molecular-dynamics simulations into question.

  13. [Antioxidant properties of essential oils].

    PubMed

    Misharina, T A; Terenina, M B; Krikunova, N I

    2009-01-01

    By the method of capillary gas-liquid chromatography we studied antioxidant properties and stability during the storage of hexane solutions of 14 individual essential oils from black and white pepper (Piper nigrum L.), cardamom (Elettaria cardamomum L.), nutmeg (Myristica fragrans Houtt.), mace (Myristica fragrans Houtt), juniperberry (Juniperus communis L.), seed of fennel (Foeniculum vulgare Mill., var. dulce Thelling), caraway (Carvum carvi L.), dry leaves of cinnamon (Cinnamomum zeylanicum Bl.), marjoram (Origanum majorana L.), laurel (Laurus nobilis L.), ginger (Zingiber officinale L.), garlic (Allium sativum L.), and clove bud (Caryophyllus aromaticus L.). We assessed the antioxidant properties by the oxidation of aliphatic aldehyde (trans-2-hexenal) into the according carbon acid. We established that essential oils of garlic, clove bud, ginger and leaves of cinnamon have the maximal efficiency of inhibition of hexenal oxidation (80-93%), while black pepper oil has the minimal (49%). Antioxidant properties of essential oils with a high content of substituted phenols depended poorly on its concentration in model systems. We studied the changes in essential oils content during the storage of its hexane solutions for 40 days in the light and out of the light and compared it with the stability of essential oils stored for a year out of the light.

  14. Characteristics of biochar: Microchemical properties

    SciTech Connect

    Amonette, James E.; Joseph, Stephen

    2009-03-13

    Biochars, being derived from a variety of biological feedstocks that have been thermally degraded under a range of conditions, exhibit a correspondingly large range in composition and chemistry. Due in part to the somewhat chaotic nature of the thermal process itself, this chemical heterogeneity extends to the microscopic scale even within a single biochar. Thus, in the strictest sense, each biochar made under a particular feedstock/process combination presents a unique mixture of phases and microenvironments that gives rise to a unique set of chemical properties. In some respects, the chemical complexity of biochars rivals that of incipient soils. In this chapter we focus on the chemical complexity of biochar as manifested primarily at a microscopic and molecular scale. We start by describing the biochar-formation process and how this influences the composition and nature of the solid phases, entrained oils, and their organization at the microscopic level. We then proceed to discuss the range of surface chemistries exhibited by biochars in terms of functional groups and electrochemical properties. We conclude with a discussion of the influence of these properties on the sorption of aqueous species at biochar surfaces.

  15. Thermophysical Properties of GRCop-84

    NASA Technical Reports Server (NTRS)

    Ellis, David L.; Keller, Dennis J.; Nathal, Michael (Technical Monitor)

    2000-01-01

    The thermophysical properties and electrical resistivity of GRCop-84 (Cu - 8 at.% Cr-4 at.% Nb) were measured from cryogenic temperatures to near its melting point. The data were analyzed using weighted regression to determine the properties as a function of temperature and assign appropriate confidence intervals. The results showed that the thermal expansion of GRCop-84 was significantly lower than NARloy-Z (Cu-3 wt. % Ag-0.5 wt. % Zr), the currently used thrust cell liner material. The lower thermal expansion is expected to translate into lower thermally induced stresses and increases in thrust cell liner lives between 2X and 41X over NARloy-Z. The somewhat lower thermal conductivity of GRCop-84 can be offset by redesigning the liners to utilize its much greater mechanical properties. Optimized designs are not expected to suffer from the lower thermal conductivity. Electrical resistivity data, while not central to the primary application, show that GRCop-84 has potential for applications where a combination of good electrical conductivity and strength is required.

  16. Database of Properties of Meteors

    NASA Technical Reports Server (NTRS)

    Suggs, Rob; Anthea, Coster

    2006-01-01

    A database of properties of meteors, and software that provides access to the database, are being developed as a contribution to continuing efforts to model the characteristics of meteors with increasing accuracy. Such modeling is necessary for evaluation of the risk of penetration of spacecraft by meteors. For each meteor in the database, the record will include an identification, date and time, radiant properties, ballistic coefficient, radar cross section, size, density, and orbital elements. The property of primary interest in the present case is density, and one of the primary goals in this case is to derive densities of meteors from their atmospheric decelerations. The database and software are expected to be valid anywhere in the solar system. The database will incorporate new data plus results of meteoroid analyses that, heretofore, have not been readily available to the aerospace community. Taken together, the database and software constitute a model that is expected to provide improved estimates of densities and to result in improved risk analyses for interplanetary spacecraft. It is planned to distribute the database and software on a compact disk.

  17. 7 CFR 1955.62 - Removal and disposition of nonsecurity personal property from inventory real property.

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ... Agriculture (Continued) RURAL HOUSING SERVICE, RURAL BUSINESS-COOPERATIVE SERVICE, RURAL UTILITIES SERVICE...) PROPERTY MANAGEMENT Management of Property § 1955.62 Removal and disposition of nonsecurity...

  18. Atmospheric aerosols: Their Optical Properties and Effects

    NASA Technical Reports Server (NTRS)

    1976-01-01

    Measured properties of atmospheric aerosol particles are presented. These include aerosol size frequency distribution and complex retractive index. The optical properties of aerosols are computed based on the presuppositions of thermodynamic equilibrium and of Mie-theory.

  19. Properties of the Top Quark

    SciTech Connect

    Wicke, Daniel; /Wuppertal U., Dept. Math.

    2009-08-01

    The aim of particle physics is the understanding of elementary particles and their interactions. The current theory of elementary particle physics, the Standard Model, contains twelve different types of fermions which (neglecting gravity) interact through the gauge bosons of three forces. In addition a scalar particle, the Higgs boson, is needed for theoretical consistency. These few building blocks explain all experimental results found in the context of particle physics, so far. Nevertheless, it is believed that the Standard Model is only an approximation to a more complete theory. First of all the fourth known force, gravity, has withstood all attempts to be included until now. Furthermore, the Standard Model describes several features of the elementary particles like the existence of three families of fermions or the quantisation of charges, but does not explain these properties from underlying principles. Finally, the lightness of the Higgs boson needed to explain the symmetry breaking is difficult to maintain in the presence of expected corrections from gravity at high scales. This is the so called hierarchy problem. In addition astrophysical results indicate that the universe consists only to a very small fraction of matter described by the Standard Model. Large fractions of dark energy and dark matter are needed to describe the observations. Both do not have any correspondence in the Standard Model. Also the very small asymmetry between matter and anti-matter that results in the observed universe built of matter (and not of anti-matter) cannot be explained until now. It is thus an important task of experimental particle physics to test the predictions of the Standard Model to the best possible accuracy and to search for deviations pointing to necessary extensions or modifications of our current theoretical understanding. The top quark was predicted to exist by the Standard Model as the partner of the bottom quark. It was first observed in 1995 by the

  20. Thermodynamic Properties of Dimethyl Carbonatea)

    NASA Astrophysics Data System (ADS)

    Zhou, Yong; Wu, Jiangtao; Lemmon, Eric W.

    2011-12-01

    A thermodynamic property formulation for dimethyl carbonate has been developed with the use of available experimental thermodynamic property data. The equation of state was developed with multiproperty fitting methods involving pressure-density-temperature (pρT), heat capacity, vapor pressure, and saturated-liquid density data. The equation of state conforms to the Maxwell criterion for two-phase liquid-vapor equilibrium states, and is valid for temperatures from the triple-point temperature (277.06 ± 0.63) K to 600 K, for pressures up to 60 MPa, and for densities up to 12.12 mol dm-3. The extrapolation behavior of the equation of state at low and high temperatures and pressures is reasonable. The uncertainties (k = 2, indicating a 95% confidence level) of the equation of state in density are 0.05% for saturated-liquid states below 350 K, rising to 0.1% in the single phase between 278 K and 400 K at pressures up to 60 MPa. Due to the lack of reliable data outside this region, the estimated uncertainties increase to 0.5% to 1% in the vapor and critical regions. The uncertainties in vapor pressure are 0.6% from 310 K to 400 K, and increase to 1% at higher temperatures and to 2% at lower temperatures due to a lack of experimental data. The uncertainty in isobaric heat capacity and speed of sound in the liquid phase at saturation or atmospheric pressure is 0.5% from 280 K to 335 K. The uncertainties are higher for all properties in the critical region. Detailed comparisons between experimental and calculated data, and an analysis of the equation, have been performed.

  1. Sampling properties of directed networks

    NASA Astrophysics Data System (ADS)

    Son, S.-W.; Christensen, C.; Bizhani, G.; Foster, D. V.; Grassberger, P.; Paczuski, M.

    2012-10-01

    For many real-world networks only a small “sampled” version of the original network may be investigated; those results are then used to draw conclusions about the actual system. Variants of breadth-first search (BFS) sampling, which are based on epidemic processes, are widely used. Although it is well established that BFS sampling fails, in most cases, to capture the IN component(s) of directed networks, a description of the effects of BFS sampling on other topological properties is all but absent from the literature. To systematically study the effects of sampling biases on directed networks, we compare BFS sampling to random sampling on complete large-scale directed networks. We present new results and a thorough analysis of the topological properties of seven complete directed networks (prior to sampling), including three versions of Wikipedia, three different sources of sampled World Wide Web data, and an Internet-based social network. We detail the differences that sampling method and coverage can make to the structural properties of sampled versions of these seven networks. Most notably, we find that sampling method and coverage affect both the bow-tie structure and the number and structure of strongly connected components in sampled networks. In addition, at a low sampling coverage (i.e., less than 40%), the values of average degree, variance of out-degree, degree autocorrelation, and link reciprocity are overestimated by 30% or more in BFS-sampled networks and only attain values within 10% of the corresponding values in the complete networks when sampling coverage is in excess of 65%. These results may cause us to rethink what we know about the structure, function, and evolution of real-world directed networks.

  2. Sampling properties of directed networks.

    PubMed

    Son, S-W; Christensen, C; Bizhani, G; Foster, D V; Grassberger, P; Paczuski, M

    2012-10-01

    For many real-world networks only a small "sampled" version of the original network may be investigated; those results are then used to draw conclusions about the actual system. Variants of breadth-first search (BFS) sampling, which are based on epidemic processes, are widely used. Although it is well established that BFS sampling fails, in most cases, to capture the IN component(s) of directed networks, a description of the effects of BFS sampling on other topological properties is all but absent from the literature. To systematically study the effects of sampling biases on directed networks, we compare BFS sampling to random sampling on complete large-scale directed networks. We present new results and a thorough analysis of the topological properties of seven complete directed networks (prior to sampling), including three versions of Wikipedia, three different sources of sampled World Wide Web data, and an Internet-based social network. We detail the differences that sampling method and coverage can make to the structural properties of sampled versions of these seven networks. Most notably, we find that sampling method and coverage affect both the bow-tie structure and the number and structure of strongly connected components in sampled networks. In addition, at a low sampling coverage (i.e., less than 40%), the values of average degree, variance of out-degree, degree autocorrelation, and link reciprocity are overestimated by 30% or more in BFS-sampled networks and only attain values within 10% of the corresponding values in the complete networks when sampling coverage is in excess of 65%. These results may cause us to rethink what we know about the structure, function, and evolution of real-world directed networks.

  3. Transport properties in the atmosphere of Jupiter

    NASA Technical Reports Server (NTRS)

    Biolsi, L., Jr.

    1979-01-01

    Activities reported include: (1) testing of the computer program used to obtain transport properties for the Hulburt-Hirschfelder potential; (2) calculation of transport properties for the C2-C interaction; (3) preliminary calculations for the C2-C2 interaction; (4) calculation of transport properties for the C2H-He interaction; (5) consideration of the effect of inelastic collisions on the transport properties; and (6) the use of the Hulburt-Hirschfelder potential to model ion-atom interactions.

  4. Microwave properties of ferromagnetic nanostructures.

    PubMed

    Valenzuela, R; Alvarez, G; Mata-Zamora, M E

    2008-06-01

    A review of the dynamic properties of nanostructured ferromagnetic materials at microwave frequencies (1-40 GHz) is presented. Since some confusion has recently appeared between giant magnetoimpedance (GMI) and ferromagnetic resonance (FMR), a detailed analysis is made in order to establish their differences. A brief review of a novel microwave absorption mode, the low-field microwave absorption (LFA) is then presented, together with a discussion about its similarities with GMI. Recent results on high-frequency measurements on nanogranular thin films and FMR in nanowire arrays are finally addressed.

  5. Dielectric Properties of Piezoelectric Polyimides

    NASA Technical Reports Server (NTRS)

    Ounaies, Z.; Young, J. A.; Simpson, J. O.; Farmer, B. L.

    1997-01-01

    Molecular modeling and dielectric measurements are being used to identify mechanisms governing piezoelectric behavior in polyimides such as dipole orientation during poling, as well as degree of piezoelectricity achievable. Molecular modeling on polyimides containing pendant, polar nitrile (CN) groups has been completed to determine their remanent polarization. Experimental investigation of their dielectric properties evaluated as a function of temperature and frequency has substantiated numerical predictions. With this information in hand, we are then able to suggest changes in the molecular structures, which will then improve upon the piezoelectric response.

  6. Spectral properties of Schwarzschild instantons

    NASA Astrophysics Data System (ADS)

    Jante, Rogelio; Schroers, Bernd J.

    2016-10-01

    We study spectral properties of the Dirac and scalar Laplace operator on the Euclidean Schwarzschild space, both twisted by a family of abelian connections with anti-self-dual curvature. We show that the zero-modes of the gauged Dirac operator, first studied by Pope, take a particularly simple form in terms of the radius of the Euclidean time orbits, and interpret them in the context of geometric models of matter. For the gauged Laplace operator, we study the spectrum of bound states numerically and observe that it can be approximated with remarkable accuracy by that of the exactly solvable gauged Laplace operator on the Euclidean Taub-NUT space.

  7. Woven TPS Mechanical Property Evaluation

    NASA Technical Reports Server (NTRS)

    Gonzales, Gregory Lewis; Kao, David Jan-Woei; Stackpoole, Margaret M.

    2013-01-01

    Woven Thermal Protection Systems (WTPS) is a relatively new program funded by the Office of the Chief Technologist (OCT). The WTPS approach to producing TPS architectures uses precisely engineered 3-D weaving techniques that allow tailoring material characteristics needed to meet specific mission requirements. A series of mechanical tests were performed to evaluate performance of different weave types, and get a better understanding of failure modes expected in these three-dimensional architectures. These properties will aid in material down selection and guide selection of the appropriate WTPS for a potential mission.

  8. Thermal properties of granulated materials.

    NASA Technical Reports Server (NTRS)

    Wechsler, A. E.; Glaser, P. E.; Fountain, J. A.

    1972-01-01

    Review of the thermophysical properties of granular materials or silicates believed to simulate the lunar surface layer. Emphasis is placed on thermal conductivity data and the effects of material and environmental variables on the thermal conductivity. There are three basic mechanisms of heat transfer in particulate materials: conduction by the gas contained in the void spaces between the particles; conduction within the solid particles and across the interparticle contacts; and thermal radiation within the particles, across the void spaces between particle surfaces, and between void spaces themselves. Gas and solid conduction, thermal radiation, and the interaction between conduction and radiation are considered.

  9. Regenerator matrix physical property data

    NASA Technical Reports Server (NTRS)

    Fucinari, C. A.

    1980-01-01

    Among several cellular ceramic structures manufactured by various suppliers for regenerator application in a gas turbine engine, three have the best potential for achieving durability and performance objectives for use in gas turbines, Stirling engines, and waste heat recovery systems: (1) an aluminum-silicate sinusoidal flow passage made from a corrugated wate paper process; (2) an extruded isosceles triangle flow passage; and (3) a second generation matrix incorporating a square flow passage formed by an embossing process. Key physical and thermal property data for these configurations presented include: heat transfer and pressure drop characteristics, compressive strength, tensile strength and elasticity, thermal expansion characteristics, chanical attack, and thermal stability.

  10. Properties of the nuclear medium.

    PubMed

    Baldo, M; Burgio, G F

    2012-02-01

    We review our knowledge on the properties of the nuclear medium that have been studied, over many years, on the basis of many-body theory, laboratory experiments and astrophysical observations. Throughout the presentation particular emphasis is placed on the possible relationship and links between the nuclear medium and the structure of nuclei, including the limitations of such an approach. First we consider the realm of phenomenological laboratory data and astrophysical observations and the hints they can give on the characteristics that the nuclear medium should possess. The analysis is based on phenomenological models, that however have a strong basis on physical intuition and an impressive success. More microscopic models are also considered, and it is shown that they are able to give invaluable information on the nuclear medium, in particular on its equation of state. The interplay between laboratory experiments and astrophysical observations is particularly stressed, and it is shown how their complementarity enormously enriches our insights into the structure of the nuclear medium. We then introduce the nucleon-nucleon interaction and the microscopic many-body theory of nuclear matter, with a critical discussion about the different approaches and their results. The Landau-Fermi liquid theory is introduced and briefly discussed, and it is shown how fruitful it can be in discussing the macroscopic and low-energy properties of the nuclear medium. As an illustrative example, we discuss neutron matter at very low density, and it is shown how it can be treated within the many-body theory. The general bulk properties of the nuclear medium are reviewed to indicate at which stage of our knowledge we stand, taking into account the most recent developments both in theory and experiments. A section is dedicated to the pairing problem. The connection with nuclear structure is then discussed, on the basis of the energy density functional method. The possibility of linking

  11. The Thermodynamic Properties of Cubanite

    NASA Technical Reports Server (NTRS)

    Berger, E. L.; Lauretta, D. S.; Keller, L. P.

    2012-01-01

    CuFe2S3 exists in two polymorphs, a low-temperature orthorhombic form (cubanite) and a high-temperature cubic form (isocubanite). Cubanite has been identified in the CI-chondrite and Stardust collections. However, the thermodynamic properties of cubanite have neither been measured nor estimated. Our derivation of a thermodynamic model for cubanite allows constraints to be placed on the formation conditions. This data, along with the temperature constraint afforded by the crystal structure, can be used to assess the environments in which cubanite formation is (or is not) thermodynamically favored.

  12. Survey of Hydrogen Combustion Properties

    NASA Technical Reports Server (NTRS)

    Drell, Isadore L; Belles, Frank E

    1958-01-01

    This literature digest of hydrogen-air combustion fundamentals presents data on flame temperature, burning velocity, quenching distance, flammability limits, ignition energy, flame stability, detonation, spontaneous ignition, and explosion limits. The data are assessed, recommended values are given, and relations among various combustion properties are discussed. New material presented includes: theoretical treatment of variation in spontaneous ignition lag with temperature, pressure, and composition, based on reaction kinetics of hydrogen-air composition range for 0.01 to 100 atmospheres and initial temperatures of 0 degrees to 1400 degrees k.

  13. CARBON NANOTUBES: PROPERTIES AND APPLICATIONS

    SciTech Connect

    Fischer, John, E.

    2009-07-24

    Carbon nanotubes were discovered in 1991 as a minority byproduct of fullerene synthesis. Remarkable progress has been made in the ensuing years, including the discovery of two basic types of nanotubes (single-wall and multi-wall), great strides in synthesis and purification, elucidation of many fundamental physical properties, and important steps towards practical applications. Both the underlying science and technological potential of SWNT can profitably be studied at the scale of individual tubes and on macroscopic assemblies such as fibers. Experiments on single tubes directly reveal many of the predicted quantum confinement and mechanical properties. Semiconductor nanowires have many features in common with nanotubes, and many of the same fundamental and practical issues are in play – quantum confinement and its effect on properties; possible device structures and circuit architectures; thermal management; optimal synthesis, defect morphology and control, etc. In 2000 we began a small effort in this direction, conducted entirely by undergraduates with minimal consumables support from this grant. With DOE-BES approval, this grew into a project in parallel with the carbon nanotube work, in which we studied of inorganic semiconductor nanowire growth, characterization and novel strategies for electronic and electromechanical device fabrication. From the beginnings of research on carbon nanotubes, one of the major applications envisioned was hydrogen storage for fuel-cell powered cars and trucks. Subsequent theoretical models gave mixed results, the most pessimistic indicating that the fundamental H2-SWNT interaction was similar to flat graphite (physisorption) with only modest binding energies implying cryogenic operation at best. New material families with encouraging measured properties have emerged, and materials modeling has gained enormously in predictive power, sophistication, and the ability to treat a realistically representative number of atoms. One of

  14. Tribological Properties Of Coal Slurries

    NASA Technical Reports Server (NTRS)

    Fusaro, Robert L.; Schrubens, Dale L.

    1988-01-01

    Report describes study of tribological properties of coal/methanol slurries with pin-on-disk tribometer. Coefficients of friction, rates of wear of steel pin, and morphological studies of worn surfaces conducted on pins and disks of AISI 440C HT stainless steel and M-50 tool steel, both used as bearing steels. Coal slurries considered as replacement fuels in terrestrial oil-burning facilities and possible fuels for future aircraft turbine engines. Rates of wear of metallic components through which slurries flow limit such practical applications.

  15. ACTOMP - AUTOCAD TO MASS PROPERTIES

    NASA Technical Reports Server (NTRS)

    Jones, A.

    1994-01-01

    AutoCAD to Mass Properties was developed to facilitate quick mass properties calculations of structures having many simple elements in a complex configuration such as trusses or metal sheet containers. Calculating the mass properties of structures of this type can be a tedious and repetitive process, but ACTOMP helps automate the calculations. The structure can be modelled in AutoCAD or a compatible CAD system in a matter of minutes using the 3-Dimensional elements. This model provides all the geometric data necessary to make a mass properties calculation of the structure. ACTOMP reads the geometric data of a drawing from the Drawing Interchange File (DXF) used in AutoCAD. The geometric entities recognized by ACTOMP include POINTs, 3DLINEs, and 3DFACEs. ACTOMP requests mass, linear density, or area density of the elements for each layer, sums all the elements and calculates the total mass, center of mass (CM) and the mass moments of inertia (MOI). AutoCAD utilizes layers to define separate drawing planes. ACTOMP uses layers to differentiate between multiple types of similar elements. For example if a structure is made of various types of beams, modeled as 3DLINEs, each with a different linear density, the beams can be grouped by linear density and each group placed on a separate layer. The program will request the linear density of 3DLINEs for each new layer it finds as it processes the drawing information. The same is true with POINTs and 3DFACEs. By using layers this way a very complex model can be created. POINTs are used for point masses such as bolts, small machine parts, or small electronic boxes. 3DLINEs are used for beams, bars, rods, cables, and other similarly slender elements. 3DFACEs are used for planar elements. 3DFACEs may be created as 3 or 4 Point faces. Some examples of elements that might be modelled using 3DFACEs are plates, sheet metal, fabric, boxes, large diameter hollow cylinders and evenly distributed masses. ACTOMP was written in Microsoft

  16. Microwave dielectric properties of biopolymers

    NASA Astrophysics Data System (ADS)

    Bartsch, Carrie M.; Subramanyam, Guru; Grote, James G.; Hopkins, F. Kenneth; Brott, Lawrence L.; Naik, Rajesh R.

    2006-09-01

    A new capacitive test structure is used to characterize biopolymers at microwave frequencies. The new test structure is comprised of a parallel plate capacitor, combined with coplanar waveguide-based input and output feed lines. This allows microwave measurements to be taken easily under an applied DC electric field. The microwave dielectric properties are characterized for two biopolymer thin films: a deoxyribonucleic acid (DNA)-based film and a bovine serum albumin (BSA)-based film. These bio-dielectric thin-films are compared with a standard commercial polymer thin film, poly[Bisphenol A carbonate-co-4,4'(3,3,5-trimethyl cyclohexylidene) diphenol], or amorphous polycarbonate (APC).

  17. Chemical modification of surface properties

    SciTech Connect

    Koel, B.E.; Windham, R.G.

    1987-01-01

    Chemically tailoring materials to have new and unique surface properties has enormous potential in a wide variety of applications for interfacial phenomena in materials science and catalysis. Recent work from our laboratory on model systems designed to explain how changes in geometric and electronic structure of metal surfaces affect surface chemistry are discussed. Specifically, the influence of potassium and bismuth coadsorption with small molecules on a Pt(111) single crystal surface will be described. We will also discuss the chemical reactivity of palladium metal monolayers and thin films which have been recently reported to have dramatically altered geometric and electronic structure. 31 refs., 3 figs.

  18. Orientational properties of nematic disclinations.

    PubMed

    Vromans, Arthur J; Giomi, Luca

    2016-08-14

    Topological defects play a pivotal role in the physics of liquid crystals and represent one of the most prominent and well studied aspects of mesophases. While in two-dimensional nematics, disclinations are traditionally treated as point-like objects, recent experimental studies on active nematics have suggested that half-strength disclinations might in fact possess a polar structure. In this article, we provide a precise definition of polarity for half-strength nematic disclinations, we introduce a simple and robust method to calculate this quantity from experimental and numerical data and we investigate how the orientational properties of half-strength disclinations affect their relaxational dynamics. PMID:27418339

  19. Novel properties of Tungsten ditelluride

    NASA Astrophysics Data System (ADS)

    Liu, Huimei; National Laboratory of Solid State Microstructures, School of Physics, Collaborative Innovation Cent Collaboration

    Tungsten ditelluride has attracted intense research interest due to the recent discovery of its large unsaturated magnetoresistance up to 60 Tesla. By using density functional theory calculations, we qualitatively reproduced the observed spin texture. Since the spin texture would forbid back scatterings that are directly involved in the resistivity, we suggest that the SOC and the related spin and orbital angular momentum textures may play an important role in the anomalously large magnetoresistance of WTe2. Motivated by the presence of a small, sensitive Fermi surface of 5d electronic orbitals, we also boost the electronic properties by applying a high pressure, and introduce superconductivity successfully.

  20. Thermomechanical properties of selected shales

    SciTech Connect

    Hansen, F.D.; Vogt, T.J.

    1987-08-01

    The experimental work discussed in this report is part of an ongoing program concerning evaluation of sedimentary and other rock types as potential hosts for a geologic repository. The objectives are the development of tools and techniques for repository characterization and performance assessment in a diversity of geohydrologic settings. This phase of the program is a laboratory study that investigates fundamental thermomechanical properties of several different shales. Laboratory experiments are intrinsically related to numerical modeling and in situ field experiments, which together will be used for performance assessment.

  1. Mechanical Property Data for Fiberboard

    SciTech Connect

    WILLIAM, daugherty

    2004-12-14

    The 9975 shipping package incorporates a cane fiberboard overpack for thermal insulation and impact resistance. Mechanical properties (tensile and compressive behavior) have been measured on cane fiberboard and a similar wood-based product following short-term conditioning in several temperature/humidity environments. Both products show similar trends, and vary in behavior with material orientation, temperature and humidity. A memory effect is also seen in that original strength values are only partially recovered following exposure to a degrading environment and return to ambient conditions.

  2. Phonon properties of americium phosphide

    NASA Astrophysics Data System (ADS)

    Arya, B. S.; Aynyas, Mahendra; Sanyal, S. P.

    2016-05-01

    Phonon properties of AmP have been studied by using breathing shell models (BSM) which includes breathing motion of electrons of the Am atoms due to f-d hybridization. The phonon dispersion curves, specific heat calculated from present model. The calculated phonon dispersion curves of AmP are presented follow the same trend as observed in uranium phosphide. We discuss the significance of this approach in predicting the phonon dispersion curves of these compounds and examine the role of electron-phonon interaction.

  3. Statistical properties of convex clustering

    PubMed Central

    Tan, Kean Ming; Witten, Daniela

    2016-01-01

    In this manuscript, we study the statistical properties of convex clustering. We establish that convex clustering is closely related to single linkage hierarchical clustering and k-means clustering. In addition, we derive the range of the tuning parameter for convex clustering that yields a non-trivial solution. We also provide an unbiased estimator of the degrees of freedom, and provide a finite sample bound for the prediction error for convex clustering. We compare convex clustering to some traditional clustering methods in simulation studies.

  4. Optical Properties of Metallic Nanoparticles

    NASA Astrophysics Data System (ADS)

    Vallée, F.

    The bright and changing colours obtained by dispersing metallic compounds in a glass matrix have been known empirically for centuries. Indeed, glasses have been coloured in the bulk by inclusion of metallic powders since ancient times to make jewellery and ornaments (see Chap. 25). Then in the Middle Ages, they were used for stained glass windows and later on for coloured glass artefacts, e.g., ruby red glass objects. However, the role played by nanoparticles in this colouring effect, i.e., the effects of nanoparticles on optical properties, were only first studied scientifically in the nineteenth century, by Michael Faraday [1].

  5. Apparatus for measuring particle properties

    DOEpatents

    Rader, D.J.; Castaneda, J.N.; Grasser, T.W.; Brockmann, J.E.

    1998-08-11

    An apparatus is described for determining particle properties from detected light scattered by the particles. The apparatus uses a light beam with novel intensity characteristics to discriminate between particles that pass through the beam and those that pass through an edge of the beam. The apparatus can also discriminate between light scattered by one particle and light scattered by multiple particles. The particle`s size can be determined from the intensity of the light scattered. The particle`s velocity can be determined from the elapsed time between various intensities of the light scattered. 11 figs.

  6. Apparatus for measuring particle properties

    DOEpatents

    Rader, Daniel J.; Castaneda, Jaime N.; Grasser, Thomas W.; Brockmann, John E.

    1998-01-01

    An apparatus for determining particle properties from detected light scattered by the particles. The apparatus uses a light beam with novel intensity characteristics to discriminate between particles that pass through the beam and those that pass through an edge of the beam. The apparatus can also discriminate between light scattered by one particle and light scattered by multiple particles. The particle's size can be determined from the intensity of the light scattered. The particle's velocity can be determined from the elapsed time between various intensities of the light scattered.

  7. Dendrimers: synthesis, applications, and properties

    PubMed Central

    2014-01-01

    Dendrimers are nano-sized, radially symmetric molecules with well-defined, homogeneous, and monodisperse structure that has a typically symmetric core, an inner shell, and an outer shell. Their three traditional macromolecular architectural classes are broadly recognized to generate rather polydisperse products of different molecular weights. A variety of dendrimers exist, and each has biological properties such as polyvalency, self-assembling, electrostatic interactions, chemical stability, low cytotoxicity, and solubility. These varied characteristics make dendrimers a good choice in the medical field, and this review covers their diverse applications. PMID:24994950

  8. Kinetic theory and ergodic properties

    PubMed Central

    Prigogine, I.; Grecos, A. P.; George, Cl.

    1976-01-01

    It is often assumed that the justification of kinetic theory lies in ergodic theory. From the properties of the collision operator, which plays a basic role in our kinetic description of dynamical systems, we show that this is not the case. We deduce that the asymptotic behavior of a class of states and observables is determined by the collisional invariants, independently of the ergodicity of the system. The relation between our conclusion and the stability concepts for classical Hamiltonian systems, introduced by Moser and others, is briefly indicated. PMID:16592325

  9. Properties of the nuclear medium

    NASA Astrophysics Data System (ADS)

    Baldo, M.; Burgio, G. F.

    2012-02-01

    We review our knowledge on the properties of the nuclear medium that have been studied, over many years, on the basis of many-body theory, laboratory experiments and astrophysical observations. Throughout the presentation particular emphasis is placed on the possible relationship and links between the nuclear medium and the structure of nuclei, including the limitations of such an approach. First we consider the realm of phenomenological laboratory data and astrophysical observations and the hints they can give on the characteristics that the nuclear medium should possess. The analysis is based on phenomenological models, that however have a strong basis on physical intuition and an impressive success. More microscopic models are also considered, and it is shown that they are able to give invaluable information on the nuclear medium, in particular on its equation of state. The interplay between laboratory experiments and astrophysical observations is particularly stressed, and it is shown how their complementarity enormously enriches our insights into the structure of the nuclear medium. We then introduce the nucleon-nucleon interaction and the microscopic many-body theory of nuclear matter, with a critical discussion about the different approaches and their results. The Landau-Fermi liquid theory is introduced and briefly discussed, and it is shown how fruitful it can be in discussing the macroscopic and low-energy properties of the nuclear medium. As an illustrative example, we discuss neutron matter at very low density, and it is shown how it can be treated within the many-body theory. The general bulk properties of the nuclear medium are reviewed to indicate at which stage of our knowledge we stand, taking into account the most recent developments both in theory and experiments. A section is dedicated to the pairing problem. The connection with nuclear structure is then discussed, on the basis of the energy density functional method. The possibility of linking

  10. Pairing Properties of Superheavy Nuclei

    SciTech Connect

    Staszczak, A.; Dobaczewski, J.; Nazarewicz, Witold

    2007-01-01

    Pairing properties of even-even superheavy N=184 isotones are studied within the Skyrme-Hartree-Fock+BCS approach. In the particle-hole channel we take the Skyrme energy density functional SLy4, while in the particle-particle channel we employ the seniority pairing force and zero-range delta-interactions with different forms of density dependence. We conclude that the calculated static fission trajectories weakly depend on the specific form of the delta-pairing interaction. We also investigate the impact of triaxiality on the inner fission barrier and find a rather strong Z dependence of the effect.

  11. Elastic Properties of Mantle Minerals

    NASA Astrophysics Data System (ADS)

    Duffy, T. S.; Stan, C. V.

    2012-12-01

    The most direct information about the interior structure of the Earth comes from seismic wave velocities. Interpretation of seismic data requires an understanding of how sound velocities and elastic properties of minerals vary with pressure, temperature, crystal structure, and composition as well as the role of anelasticity, melts, etc. More generally, elastic moduli are important for understanding many solid-state phenomena including mechanical stability, interatomic interactions, material strength, compressibility, and phase transition mechanisms. The database of mineral elasticity measurements has been growing rapidly in recent years. In this work, we report initial results of an ongoing survey of our current knowledge of mineral elasticity at both ambient conditions and high pressures and temperatures. The analysis is selective, emphasizing single crystal measurements but also incorporating polycrystalline measurements and volume compression data as appropriate. The goal is to synthesize our current understanding of mineral elasticity in terms of structure and composition, and to identify the major remaining needs for experimental and theoretical work. Clinopyroxenes (Cpx) provide an example of our approach. A wide range of clinopyroxene compositions are found geologically and Mg-, Ca-, and Na-rich clinopyroxenes are expected to be important components in the upper mantle. The single-crystal elastic properties of a number of endmember Cpx compositions have been measured and these exhibit a range of ~25% in shear velocity. Those with monovalent cations (spodumene, jadeite) in the M2 site exhibit the highest velocities while Fe-rich (hendenbergit, acmite) compositions have the lowest velocities. The effects on velocity due to a wide range of chemical substitutions can be defined, but there are important discrepancies and omissions in the database. New measurements of omphacites, intermediate diopside-hedenbergite compositions, aegerine/acmite, augite, etc. are

  12. 36 CFR 1207.31 - Real property.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... RULES UNIFORM ADMINISTRATIVE REQUIREMENTS FOR GRANTS AND COOPERATIVE AGREEMENTS TO STATE AND LOCAL... original purchase to the fair market value of the property. However, in those situations where a grantee or... purchase of the real property to the current fair market value of the property....

  13. 21 CFR 1403.31 - Real property.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ... COOPERATIVE AGREEMENTS TO STATE AND LOCAL GOVERNMENTS Post-Award Requirements Changes, Property, and Subawards... the cost of the original purchase to the fair market value of the property. However, in those... percentage of participation in the purchase of the real property to the current fair market value of...

  14. 24 CFR 206.205 - Property charges.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ... 24 Housing and Urban Development 2 2010-04-01 2010-04-01 false Property charges. 206.205 Section... CONVERSION MORTGAGE INSURANCE Servicing Responsibilities § 206.205 Property charges. (a) General. The mortgagor shall pay all property charges consisting of taxes, ground rents, flood and hazard...

  15. 7 CFR 3565.254 - Property standards.

    Code of Federal Regulations, 2011 CFR

    2011-01-01

    ... requirements established by the state or locality, and those standards contained under 7 CFR part 1924... 7 Agriculture 15 2011-01-01 2011-01-01 false Property standards. 3565.254 Section 3565.254... AGRICULTURE GUARANTEED RURAL RENTAL HOUSING PROGRAM Property Requirements § 3565.254 Property standards....

  16. 24 CFR 242.6 - Property requirements.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ... 24 Housing and Urban Development 2 2010-04-01 2010-04-01 false Property requirements. 242.6... MORTGAGE INSURANCE FOR HOSPITALS General Eligibility Requirements § 242.6 Property requirements. The mortgage, to be eligible for insurance, shall be on property located in a state, as defined in § 242.1....

  17. 24 CFR 4001.108 - Eligible properties.

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ... 24 Housing and Urban Development 5 2011-04-01 2011-04-01 false Eligible properties. 4001.108... Requirements and Underwriting Procedures § 4001.108 Eligible properties. (a) A mortgage may be insured under the Program only if the property that is to be the security for the mortgage is a 1-to-4...

  18. 34 CFR 74.32 - Real property.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 34 Education 1 2010-07-01 2010-07-01 false Real property. 74.32 Section 74.32 Education Office of... HIGHER EDUCATION, HOSPITALS, AND OTHER NON-PROFIT ORGANIZATIONS Post-Award Requirements Property Standards § 74.32 Real property. The Secretary prescribes requirements for recipients concerning the use...

  19. 7 CFR 3019.32 - Real property.

    Code of Federal Regulations, 2011 CFR

    2011-01-01

    ... 7 Agriculture 15 2011-01-01 2011-01-01 false Real property. 3019.32 Section 3019.32 Agriculture... EDUCATION, HOSPITALS, AND OTHER NON-PROFIT ORGANIZATIONS Post-Award Requirements Property Standards § 3019.32 Real property. Each Federal awarding agency shall prescribe requirements for recipients...

  20. 45 CFR 1157.31 - Real property.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... 45 Public Welfare 3 2010-10-01 2010-10-01 false Real property. 1157.31 Section 1157.31 Public... AGREEMENTS TO STATE AND LOCAL GOVERNMENTS Post-Award Requirements Changes, Property, and Subawards § 1157.31 Real property. (a) Title. Subject to the obligations and conditions set forth in this section, title...

  1. 34 CFR 80.31 - Real property.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 34 Education 1 2010-07-01 2010-07-01 false Real property. 80.31 Section 80.31 Education Office of... AGREEMENTS TO STATE AND LOCAL GOVERNMENTS Post-Award Requirements Changes, Property, and Subawards § 80.31 Real property. (a) Title. Subject to the obligations and conditions set forth in this section, title...

  2. 24 CFR 2700.101 - Eligible properties.

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ... 24 Housing and Urban Development 5 2011-04-01 2011-04-01 false Eligible properties. 2700.101... EMERGENCY HOMEOWNERS' LOAN PROGRAM Eligibility § 2700.101 Eligible properties. (a) In order to qualify for an emergency assistance under this part, the property of the homeowner seeking assistance must:...

  3. 45 CFR 1183.31 - Real property.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... 45 Public Welfare 3 2010-10-01 2010-10-01 false Real property. 1183.31 Section 1183.31 Public... COOPERATIVE AGREEMENTS TO STATE AND LOCAL GOVERNMENTS Post-Award Requirements Changes, Property, and Subawards § 1183.31 Real property. (a) Title. Subject to the obligations and conditions set forth in this...

  4. 24 CFR 85.31 - Real property.

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ... 24 Housing and Urban Development 1 2011-04-01 2011-04-01 false Real property. 85.31 Section 85.31... TRIBAL GOVERNMENTS Post-Award Requirements Changes, Property, and Subawards § 85.31 Real property. (a) Title. Subject to the obligations and conditions set forth in this section, title to real...

  5. 24 CFR 954.401 - Property standards.

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ... 24 Housing and Urban Development 4 2011-04-01 2011-04-01 false Property standards. 954.401 Section... INDIAN HOME PROGRAM Project Requirements § 954.401 Property standards. (a) Housing that is assisted with... defects and the time by which defects must be cured and applicable property standards met. (2) The...

  6. 45 CFR 1174.31 - Real property.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... 45 Public Welfare 3 2010-10-01 2010-10-01 false Real property. 1174.31 Section 1174.31 Public... COOPERATIVE AGREEMENTS TO STATE AND LOCAL GOVERNMENTS Post-Award Requirements Changes, Property, and Subawards § 1174.31 Real property. (a) Title. Subject to the obligations and conditions set forth in this...

  7. 36 CFR 1210.36 - Intangible property.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... 36 Parks, Forests, and Public Property 3 2012-07-01 2012-07-01 false Intangible property. 1210.36 Section 1210.36 Parks, Forests, and Public Property NATIONAL ARCHIVES AND RECORDS ADMINISTRATION GENERAL... developed, or for which ownership was purchased, under an award. The NHPRC reserves a...

  8. 36 CFR 1210.36 - Intangible property.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... 36 Parks, Forests, and Public Property 3 2014-07-01 2014-07-01 false Intangible property. 1210.36 Section 1210.36 Parks, Forests, and Public Property NATIONAL ARCHIVES AND RECORDS ADMINISTRATION GENERAL... developed, or for which ownership was purchased, under an award. The NHPRC reserves a...

  9. 36 CFR 1210.36 - Intangible property.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... 36 Parks, Forests, and Public Property 3 2013-07-01 2012-07-01 true Intangible property. 1210.36 Section 1210.36 Parks, Forests, and Public Property NATIONAL ARCHIVES AND RECORDS ADMINISTRATION GENERAL... developed, or for which ownership was purchased, under an award. The NHPRC reserves a...

  10. 36 CFR 1210.36 - Intangible property.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 36 Parks, Forests, and Public Property 3 2010-07-01 2010-07-01 false Intangible property. 1210.36 Section 1210.36 Parks, Forests, and Public Property NATIONAL ARCHIVES AND RECORDS ADMINISTRATION GENERAL... developed, or for which ownership was purchased, under an award. The NHPRC reserves a...

  11. 36 CFR 331.6 - Public property.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... 36 Parks, Forests, and Public Property 3 2012-07-01 2012-07-01 false Public property. 331.6 Section 331.6 Parks, Forests, and Public Property CORPS OF ENGINEERS, DEPARTMENT OF THE ARMY REGULATIONS GOVERNING THE PROTECTION, USE AND MANAGEMENT OF THE FALLS OF THE OHIO NATIONAL WILDLIFE CONSERVATION...

  12. 36 CFR 2.22 - Property.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... 36 Parks, Forests, and Public Property 1 2014-07-01 2014-07-01 false Property. 2.22 Section 2.22 Parks, Forests, and Public Property NATIONAL PARK SERVICE, DEPARTMENT OF THE INTERIOR RESOURCE... claimed by the finder, provided that the finder is not an employee of the National Park Service....

  13. 36 CFR 2.22 - Property.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... 36 Parks, Forests, and Public Property 1 2011-07-01 2011-07-01 false Property. 2.22 Section 2.22 Parks, Forests, and Public Property NATIONAL PARK SERVICE, DEPARTMENT OF THE INTERIOR RESOURCE... claimed by the finder, provided that the finder is not an employee of the National Park Service....

  14. 36 CFR 331.6 - Public property.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... 36 Parks, Forests, and Public Property 3 2013-07-01 2012-07-01 true Public property. 331.6 Section 331.6 Parks, Forests, and Public Property CORPS OF ENGINEERS, DEPARTMENT OF THE ARMY REGULATIONS GOVERNING THE PROTECTION, USE AND MANAGEMENT OF THE FALLS OF THE OHIO NATIONAL WILDLIFE CONSERVATION...

  15. 36 CFR 331.6 - Public property.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 36 Parks, Forests, and Public Property 3 2010-07-01 2010-07-01 false Public property. 331.6 Section 331.6 Parks, Forests, and Public Property CORPS OF ENGINEERS, DEPARTMENT OF THE ARMY REGULATIONS GOVERNING THE PROTECTION, USE AND MANAGEMENT OF THE FALLS OF THE OHIO NATIONAL WILDLIFE CONSERVATION...

  16. 36 CFR 2.22 - Property.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 36 Parks, Forests, and Public Property 1 2010-07-01 2010-07-01 false Property. 2.22 Section 2.22 Parks, Forests, and Public Property NATIONAL PARK SERVICE, DEPARTMENT OF THE INTERIOR RESOURCE... claimed by the finder, provided that the finder is not an employee of the National Park Service....

  17. 36 CFR 2.22 - Property.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... 36 Parks, Forests, and Public Property 1 2013-07-01 2013-07-01 false Property. 2.22 Section 2.22 Parks, Forests, and Public Property NATIONAL PARK SERVICE, DEPARTMENT OF THE INTERIOR RESOURCE... claimed by the finder, provided that the finder is not an employee of the National Park Service....

  18. 36 CFR 331.6 - Public property.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... 36 Parks, Forests, and Public Property 3 2011-07-01 2011-07-01 false Public property. 331.6 Section 331.6 Parks, Forests, and Public Property CORPS OF ENGINEERS, DEPARTMENT OF THE ARMY REGULATIONS GOVERNING THE PROTECTION, USE AND MANAGEMENT OF THE FALLS OF THE OHIO NATIONAL WILDLIFE CONSERVATION...

  19. 36 CFR 2.22 - Property.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... 36 Parks, Forests, and Public Property 1 2012-07-01 2012-07-01 false Property. 2.22 Section 2.22 Parks, Forests, and Public Property NATIONAL PARK SERVICE, DEPARTMENT OF THE INTERIOR RESOURCE... claimed by the finder, provided that the finder is not an employee of the National Park Service....

  20. 36 CFR 331.6 - Public property.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... 36 Parks, Forests, and Public Property 3 2014-07-01 2014-07-01 false Public property. 331.6 Section 331.6 Parks, Forests, and Public Property CORPS OF ENGINEERS, DEPARTMENT OF THE ARMY REGULATIONS GOVERNING THE PROTECTION, USE AND MANAGEMENT OF THE FALLS OF THE OHIO NATIONAL WILDLIFE CONSERVATION...

  1. A European Roadmap for Thermophysical Properties Metrology

    NASA Astrophysics Data System (ADS)

    Filtz, J.-R.; Wu, J.; Stacey, C.; Hollandt, J.; Monte, C.; Hay, B.; Hameury, J.; Villamañan, M. A.; Thurzo-Andras, E.; Sarge, S.

    2015-03-01

    A roadmap for thermophysical properties metrology was developed in spring 2011 by the Thermophysical Properties Working Group in the EURAMET Technical Committee in charge of Thermometry, Humidity and Moisture, and Thermophysical Properties metrology. This roadmapping process is part of the EURAMET (European Association of National Metrology Institutes) activities aiming to increase impact from national investment in European metrology R&D. The roadmap shows a shared vision of how the development of thermophysical properties metrology should be oriented over the next 15 years to meet future social and economic needs. Since thermophysical properties metrology is a very broad and varied field, the authors have limited this roadmap to the following families of properties: thermal transport properties (thermal conductivity, thermal diffusivity, etc.), radiative properties (emissivity, absorbance, reflectance, and transmittance), caloric quantities (specific heat, enthalpy, etc.), thermodynamic properties (PVT and phase equilibria properties), and temperature-dependent quantities (thermal expansion, compressibility, etc.). This roadmap identifies the main societal and economical triggers that drive developments in thermophysical properties metrology. The key topics considered are energy, environment, advanced manufacturing and processing, public safety, security, and health. Key targets that require improved thermophysical properties measurements are identified in order to address these triggers. Ways are also proposed for defining the necessary skills and the main useful means to be implemented. These proposals will have to be revised as needs and technologies evolve in the future.

  2. Properties and uses of concrete, appendix B

    NASA Technical Reports Server (NTRS)

    Corley, Gene

    1992-01-01

    Concretes that can now be formed have properties which may make them valuable for lunar or space construction. These properties include high compressive strength, good flexural strength (when reinforced), and favorable responses to temperature extremes (even increased strength at low temperatures). These and other properties of concrete are discussed.

  3. 32 CFR 174.13 - Personal property.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... 32 National Defense 1 2014-07-01 2014-07-01 false Personal property. 174.13 Section 174.13 National Defense Department of Defense OFFICE OF THE SECRETARY OF DEFENSE CLOSURES AND REALIGNMENT REVITALIZING BASE CLOSURE COMMUNITIES AND ADDRESSING IMPACTS OF REALIGNMENT Personal Property § 174.13 Personal property. (a) This section outlines...

  4. 32 CFR 174.13 - Personal property.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... community or LRA through the appropriate State Agency for Surplus Property (SASP) under 41 CFR part 102-37... classified items; nuclear, biological, and chemical items; weapons and munitions; museum property or items of... 32 National Defense 1 2012-07-01 2012-07-01 false Personal property. 174.13 Section...

  5. 32 CFR 174.13 - Personal property.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... effective implementation of a redevelopment plan. Personal property does not include fixtures. (b) The... makes a finding that the personal property is necessary for the effective implementation of the... community or LRA through the appropriate State Agency for Surplus Property (SASP) under 41 CFR part...

  6. 25 CFR 700.531 - Government property.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ... 25 Indians 2 2010-04-01 2010-04-01 false Government property. 700.531 Section 700.531 Indians THE... Responsibility and Conduct § 700.531 Government property. Employees shall be held accountable for Government... employee has a positive duty to protect and conserve Government property and to use it economically and...

  7. 48 CFR 53.245 - Government property.

    Code of Federal Regulations, 2012 CFR

    2012-10-01

    ... 120-A (GSA), Continuation Sheet (Report of Excess Personal Property). See 45.602-3 and 41 CFR 102-36... Property for Sale (Continuation Sheet). See FPMR 101-45.303 (41 CFR 101-45.303.)) (c) SF 1423 (Rev. 5/04... 48 Federal Acquisition Regulations System 2 2012-10-01 2012-10-01 false Government property....

  8. 25 CFR 700.531 - Government property.

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ... 25 Indians 2 2011-04-01 2011-04-01 false Government property. 700.531 Section 700.531 Indians THE... Responsibility and Conduct § 700.531 Government property. Employees shall be held accountable for Government... employee has a positive duty to protect and conserve Government property and to use it economically and...

  9. 25 CFR 700.531 - Government property.

    Code of Federal Regulations, 2012 CFR

    2012-04-01

    ... 25 Indians 2 2012-04-01 2012-04-01 false Government property. 700.531 Section 700.531 Indians THE... Responsibility and Conduct § 700.531 Government property. Employees shall be held accountable for Government... employee has a positive duty to protect and conserve Government property and to use it economically and...

  10. 48 CFR 53.245 - Government property.

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ... 120-A (GSA), Continuation Sheet (Report of Excess Personal Property). See 45.602-3 and 41 CFR 102-36... Property for Sale (Continuation Sheet). See FPMR 101-45.303 (41 CFR 101-45.303.)) (c) SF 1423 (Rev. 5/04... 48 Federal Acquisition Regulations System 2 2014-10-01 2014-10-01 false Government property....

  11. 48 CFR 53.245 - Government property.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... 120-A (GSA), Continuation Sheet (Report of Excess Personal Property). See 45.602-3 and 41 CFR 102-36... Property for Sale (Continuation Sheet). See FPMR 101-45.303 (41 CFR 101-45.303.)) (c) SF 1423 (Rev. 5/04... 48 Federal Acquisition Regulations System 2 2010-10-01 2010-10-01 false Government property....

  12. 48 CFR 53.245 - Government property.

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ... 120-A (GSA), Continuation Sheet (Report of Excess Personal Property). See 45.602-3 and 41 CFR 102-36... Property for Sale (Continuation Sheet). See FPMR 101-45.303 (41 CFR 101-45.303.)) (c) SF 1423 (Rev. 5/04... 48 Federal Acquisition Regulations System 2 2013-10-01 2013-10-01 false Government property....

  13. 25 CFR 700.531 - Government property.

    Code of Federal Regulations, 2014 CFR

    2014-04-01

    ... 25 Indians 2 2014-04-01 2014-04-01 false Government property. 700.531 Section 700.531 Indians THE... Responsibility and Conduct § 700.531 Government property. Employees shall be held accountable for Government... employee has a positive duty to protect and conserve Government property and to use it economically and...

  14. 48 CFR 53.245 - Government property.

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ... 120-A (GSA), Continuation Sheet (Report of Excess Personal Property). See 45.602-3 and 41 CFR 102-36... Property for Sale (Continuation Sheet). See FPMR 101-45.303 (41 CFR 101-45.303.)) (c) SF 1423 (Rev. 5/04... 48 Federal Acquisition Regulations System 2 2011-10-01 2011-10-01 false Government property....

  15. 25 CFR 700.531 - Government property.

    Code of Federal Regulations, 2013 CFR

    2013-04-01

    ... 25 Indians 2 2013-04-01 2013-04-01 false Government property. 700.531 Section 700.531 Indians THE... Responsibility and Conduct § 700.531 Government property. Employees shall be held accountable for Government... employee has a positive duty to protect and conserve Government property and to use it economically and...

  16. 36 CFR 13.1240 - Unattended property.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... 36 Parks, Forests, and Public Property 1 2014-07-01 2014-07-01 false Unattended property. 13.1240 Section 13.1240 Parks, Forests, and Public Property NATIONAL PARK SERVICE, DEPARTMENT OF THE INTERIOR... Campground, or designated equipment caches as posted at the Brooks Camp Visitor Center....

  17. 36 CFR 13.1240 - Unattended property.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... 36 Parks, Forests, and Public Property 1 2011-07-01 2011-07-01 false Unattended property. 13.1240 Section 13.1240 Parks, Forests, and Public Property NATIONAL PARK SERVICE, DEPARTMENT OF THE INTERIOR... Campground, or designated equipment caches as posted at the Brooks Camp Visitor Center....

  18. 36 CFR 13.1240 - Unattended property.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... 36 Parks, Forests, and Public Property 1 2012-07-01 2012-07-01 false Unattended property. 13.1240 Section 13.1240 Parks, Forests, and Public Property NATIONAL PARK SERVICE, DEPARTMENT OF THE INTERIOR NATIONAL PARK SYSTEM UNITS IN ALASKA Special Regulations-Katmai National Park and Preserve Brooks Camp Developed Area § 13.1240 Unattended...

  19. 36 CFR 13.1240 - Unattended property.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... 36 Parks, Forests, and Public Property 1 2013-07-01 2013-07-01 false Unattended property. 13.1240 Section 13.1240 Parks, Forests, and Public Property NATIONAL PARK SERVICE, DEPARTMENT OF THE INTERIOR... Campground, or designated equipment caches as posted at the Brooks Camp Visitor Center....

  20. 10 CFR 600.231 - Real property.

    Code of Federal Regulations, 2011 CFR

    2011-01-01

    ... 10 Energy 4 2011-01-01 2011-01-01 false Real property. 600.231 Section 600.231 Energy DEPARTMENT....231 Real property. (a) Title. Subject to the obligations and conditions set forth in this section, title to real property acquired under a grant or subgrant will vest upon acquisition in the grantee...

  1. 45 CFR 1183.31 - Real property.

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ... 45 Public Welfare 3 2011-10-01 2011-10-01 false Real property. 1183.31 Section 1183.31 Public... COOPERATIVE AGREEMENTS TO STATE AND LOCAL GOVERNMENTS Post-Award Requirements Changes, Property, and Subawards § 1183.31 Real property. (a) Title. Subject to the obligations and conditions set forth in this...

  2. 20 CFR 437.31 - Real property.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ... 20 Employees' Benefits 2 2010-04-01 2010-04-01 false Real property. 437.31 Section 437.31... COOPERATIVE AGREEMENTS TO STATE AND LOCAL GOVERNMENTS Post-Award Requirements Changes, Property, and Subawards § 437.31 Real property. (a) Title. Subject to the obligations and conditions set forth in this...

  3. 29 CFR 97.31 - Real property.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... 29 Labor 1 2013-07-01 2013-07-01 false Real property. 97.31 Section 97.31 Labor Office of the... LOCAL GOVERNMENTS Post-Award Requirements Changes, Property, and Subawards § 97.31 Real property. (a) Title. Subject to the obligations and conditions set forth in this section, title to real...

  4. 39 CFR 501.19 - Intellectual property.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... 39 Postal Service 1 2013-07-01 2013-07-01 false Intellectual property. 501.19 Section 501.19... POSTAGE EVIDENCING SYSTEMS § 501.19 Intellectual property. Providers submitting Postage Evidencing Systems to the Postal Service for approval are responsible for obtaining all intellectual property...

  5. 20 CFR 404.1628 - Property.

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ... 20 Employees' Benefits 2 2011-04-01 2011-04-01 false Property. 404.1628 Section 404.1628 Employees...- ) Determinations of Disability Administrative Responsibilities and Requirements § 404.1628 Property. The State will... maintaining all property it acquires or which we furnish to it for performing the disability...

  6. 20 CFR 416.1028 - Property.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ... 20 Employees' Benefits 2 2010-04-01 2010-04-01 false Property. 416.1028 Section 416.1028 Employees... Determinations of Disability Administrative Responsibilities and Requirements § 416.1028 Property. The State will... maintaining all property it acquires or which we furnish to it for performing the disability...

  7. 49 CFR 18.31 - Real property.

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ... 49 Transportation 1 2011-10-01 2011-10-01 false Real property. 18.31 Section 18.31 Transportation... AGREEMENTS TO STATE AND LOCAL GOVERNMENTS Post-Award Requirements Changes, Property, and Subawards § 18.31 Real property. (a) Title. Subject to the obligations and conditions set forth in this section, title...

  8. 28 CFR 66.31 - Real property.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 28 Judicial Administration 2 2010-07-01 2010-07-01 false Real property. 66.31 Section 66.31... AND COOPERATIVE AGREEMENTS TO STATE AND LOCAL GOVERNMENTS Post-Award Requirements Changes, Property, and Subawards § 66.31 Real property. (a) Title. Subject to the obligations and conditions set forth...

  9. 20 CFR 416.1028 - Property.

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ... 20 Employees' Benefits 2 2011-04-01 2011-04-01 false Property. 416.1028 Section 416.1028 Employees... Determinations of Disability Administrative Responsibilities and Requirements § 416.1028 Property. The State will... maintaining all property it acquires or which we furnish to it for performing the disability...

  10. 15 CFR 24.34 - Other property.

    Code of Federal Regulations, 2011 CFR

    2011-01-01

    ... 15 Commerce and Foreign Trade 1 2011-01-01 2011-01-01 false Other property. 24.34 Section 24.34..., Property, and Subawards § 24.34 Other property. (a) Copyrights. The Federal awarding agency reserves a... grantee, subgrantee, or a contractor purchases ownership with grant support. (b) Intangible...

  11. 34 CFR 74.32 - Real property.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... 34 Education 1 2013-07-01 2013-07-01 false Real property. 74.32 Section 74.32 Education Office of... HIGHER EDUCATION, HOSPITALS, AND OTHER NON-PROFIT ORGANIZATIONS Post-Award Requirements Property Standards § 74.32 Real property. The Secretary prescribes requirements for recipients concerning the use...

  12. 24 CFR 85.31 - Real property.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ... 24 Housing and Urban Development 1 2010-04-01 2010-04-01 false Real property. 85.31 Section 85.31... TRIBAL GOVERNMENTS Post-Award Requirements Changes, Property, and Subawards § 85.31 Real property. (a) Title. Subject to the obligations and conditions set forth in this section, title to real...

  13. 24 CFR 954.401 - Property standards.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ... 24 Housing and Urban Development 4 2010-04-01 2010-04-01 false Property standards. 954.401 Section... INDIAN HOME PROGRAM Project Requirements § 954.401 Property standards. (a) Housing that is assisted with... defects and the time by which defects must be cured and applicable property standards met. (2) The...

  14. 34 CFR 74.32 - Real property.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... 34 Education 1 2011-07-01 2011-07-01 false Real property. 74.32 Section 74.32 Education Office of... HIGHER EDUCATION, HOSPITALS, AND OTHER NON-PROFIT ORGANIZATIONS Post-Award Requirements Property Standards § 74.32 Real property. The Secretary prescribes requirements for recipients concerning the use...

  15. 39 CFR 501.19 - Intellectual property.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 39 Postal Service 1 2010-07-01 2010-07-01 false Intellectual property. 501.19 Section 501.19... POSTAGE EVIDENCING SYSTEMS § 501.19 Intellectual property. Providers submitting Postage Evidencing Systems to the Postal Service for approval are responsible for obtaining all intellectual property...

  16. 7 CFR 277.13 - Property.

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ... 7 Agriculture 4 2010-01-01 2010-01-01 false Property. 277.13 Section 277.13 Agriculture... § 277.13 Property. (a) General. This section prescribes policies and procedures governing title, use, disposition of real and personal property for which acquisition costs were borne, in whole or in part, as...

  17. 28 CFR 551.118 - Property.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... 28 Judicial Administration 2 2013-07-01 2013-07-01 false Property. 551.118 Section 551.118... Pretrial Inmates § 551.118 Property. (a) A pretrial inmate may retain personal property as authorized for convicted inmates housed in administrative detention units. (See 28 CFR part 541, subpart B.) (b) Staff...

  18. 28 CFR 551.118 - Property.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 28 Judicial Administration 2 2010-07-01 2010-07-01 false Property. 551.118 Section 551.118... Pretrial Inmates § 551.118 Property. (a) A pretrial inmate may retain personal property as authorized for convicted inmates housed in administrative detention units. (See 28 CFR part 541, subpart B.) (b) Staff...

  19. 39 CFR 501.19 - Intellectual property.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... 39 Postal Service 1 2011-07-01 2011-07-01 false Intellectual property. 501.19 Section 501.19... POSTAGE EVIDENCING SYSTEMS § 501.19 Intellectual property. Providers submitting Postage Evidencing Systems to the Postal Service for approval are responsible for obtaining all intellectual property...

  20. 44 CFR 13.31 - Real property.

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ... 44 Emergency Management and Assistance 1 2013-10-01 2013-10-01 false Real property. 13.31 Section... LOCAL GOVERNMENTS Post-Award Requirements Changes, Property, and Subawards § 13.31 Real property. (a) Title. Subject to the obligations and conditions set forth in this section, title to real...