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Sample records for account blocked property

  1. 31 CFR 510.301 - Blocked account; blocked property.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... 31 Money and Finance:Treasury 3 2012-07-01 2012-07-01 false Blocked account; blocked property. 510.301 Section 510.301 Money and Finance: Treasury Regulations Relating to Money and Finance (Continued) OFFICE OF FOREIGN ASSETS CONTROL, DEPARTMENT OF THE TREASURY NORTH KOREA SANCTIONS REGULATIONS General Definitions § 510.301 Blocked...

  2. 31 CFR 589.301 - Blocked account; blocked property.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... 31 Money and Finance:Treasury 3 2014-07-01 2014-07-01 false Blocked account; blocked property. 589.301 Section 589.301 Money and Finance: Treasury Regulations Relating to Money and Finance (Continued) OFFICE OF FOREIGN ASSETS CONTROL, DEPARTMENT OF THE TREASURY UKRAINE RELATED SANCTIONS...

  3. 31 CFR 544.301 - Blocked account; blocked property.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... 31 Money and Finance:Treasury 3 2014-07-01 2014-07-01 false Blocked account; blocked property. 544.301 Section 544.301 Money and Finance: Treasury Regulations Relating to Money and Finance (Continued) OFFICE OF FOREIGN ASSETS CONTROL, DEPARTMENT OF THE TREASURY WEAPONS OF MASS DESTRUCTION...

  4. 31 CFR 544.301 - Blocked account; blocked property.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... 31 Money and Finance:Treasury 3 2012-07-01 2012-07-01 false Blocked account; blocked property. 544.301 Section 544.301 Money and Finance: Treasury Regulations Relating to Money and Finance (Continued) OFFICE OF FOREIGN ASSETS CONTROL, DEPARTMENT OF THE TREASURY WEAPONS OF MASS DESTRUCTION...

  5. 31 CFR 544.301 - Blocked account; blocked property.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... 31 Money and Finance:Treasury 3 2011-07-01 2011-07-01 false Blocked account; blocked property. 544.301 Section 544.301 Money and Finance: Treasury Regulations Relating to Money and Finance (Continued) OFFICE OF FOREIGN ASSETS CONTROL, DEPARTMENT OF THE TREASURY WEAPONS OF MASS DESTRUCTION...

  6. 31 CFR 544.301 - Blocked account; blocked property.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... 31 Money and Finance:Treasury 3 2013-07-01 2013-07-01 false Blocked account; blocked property. 544.301 Section 544.301 Money and Finance: Treasury Regulations Relating to Money and Finance (Continued) OFFICE OF FOREIGN ASSETS CONTROL, DEPARTMENT OF THE TREASURY WEAPONS OF MASS DESTRUCTION...

  7. 31 CFR 544.301 - Blocked account; blocked property.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 31 Money and Finance: Treasury 3 2010-07-01 2010-07-01 false Blocked account; blocked property. 544.301 Section 544.301 Money and Finance: Treasury Regulations Relating to Money and Finance (Continued) OFFICE OF FOREIGN ASSETS CONTROL, DEPARTMENT OF THE TREASURY WEAPONS OF MASS...

  8. 31 CFR 576.301 - Blocked account; blocked property.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... 31 Money and Finance:Treasury 3 2013-07-01 2013-07-01 false Blocked account; blocked property. 576.301 Section 576.301 Money and Finance: Treasury Regulations Relating to Money and Finance (Continued) OFFICE OF FOREIGN ASSETS CONTROL, DEPARTMENT OF THE TREASURY IRAQ STABILIZATION AND INSURGENCY...

  9. 31 CFR 576.301 - Blocked account; blocked property.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... 31 Money and Finance:Treasury 3 2011-07-01 2011-07-01 false Blocked account; blocked property. 576.301 Section 576.301 Money and Finance: Treasury Regulations Relating to Money and Finance (Continued) OFFICE OF FOREIGN ASSETS CONTROL, DEPARTMENT OF THE TREASURY IRAQ STABILIZATION AND INSURGENCY...

  10. 31 CFR 576.301 - Blocked account; blocked property.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... 31 Money and Finance:Treasury 3 2012-07-01 2012-07-01 false Blocked account; blocked property. 576.301 Section 576.301 Money and Finance: Treasury Regulations Relating to Money and Finance (Continued) OFFICE OF FOREIGN ASSETS CONTROL, DEPARTMENT OF THE TREASURY IRAQ STABILIZATION AND INSURGENCY...

  11. 31 CFR 576.301 - Blocked account; blocked property.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... 31 Money and Finance:Treasury 3 2014-07-01 2014-07-01 false Blocked account; blocked property. 576.301 Section 576.301 Money and Finance: Treasury Regulations Relating to Money and Finance (Continued) OFFICE OF FOREIGN ASSETS CONTROL, DEPARTMENT OF THE TREASURY IRAQ STABILIZATION AND INSURGENCY...

  12. 31 CFR 558.301 - Blocked account; blocked property.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... 31 Money and Finance:Treasury 3 2014-07-01 2014-07-01 false Blocked account; blocked property. 558.301 Section 558.301 Money and Finance: Treasury Regulations Relating to Money and Finance (Continued) OFFICE OF FOREIGN ASSETS CONTROL, DEPARTMENT OF THE TREASURY SOUTH SUDAN SANCTIONS REGULATIONS...

  13. 31 CFR 545.301 - Blocked account; blocked property.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 31 Money and Finance: Treasury 3 2010-07-01 2010-07-01 false Blocked account; blocked property. 545.301 Section 545.301 Money and Finance: Treasury Regulations Relating to Money and Finance (Continued) OFFICE OF FOREIGN ASSETS CONTROL, DEPARTMENT OF THE TREASURY TALIBAN (AFGHANISTAN)...

  14. 31 CFR 510.301 - Blocked account; blocked property.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... 31 Money and Finance:Treasury 3 2014-07-01 2014-07-01 false Blocked account; blocked property. 510.301 Section 510.301 Money and Finance: Treasury Regulations Relating to Money and Finance (Continued) OFFICE OF FOREIGN ASSETS CONTROL, DEPARTMENT OF THE TREASURY NORTH KOREA SANCTIONS REGULATIONS...

  15. 31 CFR 510.301 - Blocked account; blocked property.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... 31 Money and Finance:Treasury 3 2013-07-01 2013-07-01 false Blocked account; blocked property. 510.301 Section 510.301 Money and Finance: Treasury Regulations Relating to Money and Finance (Continued) OFFICE OF FOREIGN ASSETS CONTROL, DEPARTMENT OF THE TREASURY NORTH KOREA SANCTIONS REGULATIONS...

  16. 31 CFR 552.301 - Blocked account; blocked property.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... 31 Money and Finance:Treasury 3 2013-07-01 2013-07-01 false Blocked account; blocked property. 552.301 Section 552.301 Money and Finance: Treasury Regulations Relating to Money and Finance (Continued) OFFICE OF FOREIGN ASSETS CONTROL, DEPARTMENT OF THE TREASURY YEMEN SANCTIONS REGULATIONS...

  17. 31 CFR 552.301 - Blocked account; blocked property.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... 31 Money and Finance:Treasury 3 2014-07-01 2014-07-01 false Blocked account; blocked property. 552.301 Section 552.301 Money and Finance: Treasury Regulations Relating to Money and Finance (Continued) OFFICE OF FOREIGN ASSETS CONTROL, DEPARTMENT OF THE TREASURY YEMEN SANCTIONS REGULATIONS...

  18. 31 CFR 594.301 - Blocked account; blocked property.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 31 Money and Finance: Treasury 3 2010-07-01 2010-07-01 false Blocked account; blocked property. 594.301 Section 594.301 Money and Finance: Treasury Regulations Relating to Money and Finance (Continued) OFFICE OF FOREIGN ASSETS CONTROL, DEPARTMENT OF THE TREASURY GLOBAL TERRORISM...

  19. 31 CFR 541.301 - Blocked account; blocked property.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 31 Money and Finance: Treasury 3 2010-07-01 2010-07-01 false Blocked account; blocked property. 541.301 Section 541.301 Money and Finance: Treasury Regulations Relating to Money and Finance (Continued) OFFICE OF FOREIGN ASSETS CONTROL, DEPARTMENT OF THE TREASURY ZIMBABWE SANCTIONS...

  20. 31 CFR 562.301 - Blocked account; blocked property.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... 31 Money and Finance:Treasury 3 2011-07-01 2011-07-01 false Blocked account; blocked property. 562.301 Section 562.301 Money and Finance: Treasury Regulations Relating to Money and Finance (Continued) OFFICE OF FOREIGN ASSETS CONTROL, DEPARTMENT OF THE TREASURY IRANIAN HUMAN RIGHTS ABUSES...

  1. 31 CFR 562.301 - Blocked account; blocked property.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... 31 Money and Finance:Treasury 3 2013-07-01 2013-07-01 false Blocked account; blocked property. 562.301 Section 562.301 Money and Finance: Treasury Regulations Relating to Money and Finance (Continued) OFFICE OF FOREIGN ASSETS CONTROL, DEPARTMENT OF THE TREASURY IRANIAN HUMAN RIGHTS ABUSES SANCTIONS REGULATIONS General Definitions §...

  2. 31 CFR 562.301 - Blocked account; blocked property.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... 31 Money and Finance:Treasury 3 2014-07-01 2014-07-01 false Blocked account; blocked property. 562.301 Section 562.301 Money and Finance: Treasury Regulations Relating to Money and Finance (Continued) OFFICE OF FOREIGN ASSETS CONTROL, DEPARTMENT OF THE TREASURY IRANIAN HUMAN RIGHTS ABUSES...

  3. 31 CFR 562.301 - Blocked account; blocked property.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... 31 Money and Finance:Treasury 3 2012-07-01 2012-07-01 false Blocked account; blocked property. 562.301 Section 562.301 Money and Finance: Treasury Regulations Relating to Money and Finance (Continued) OFFICE OF FOREIGN ASSETS CONTROL, DEPARTMENT OF THE TREASURY IRANIAN HUMAN RIGHTS ABUSES SANCTIONS REGULATIONS General Definitions §...

  4. 31 CFR 548.301 - Blocked account; blocked property.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 31 Money and Finance: Treasury 3 2010-07-01 2010-07-01 false Blocked account; blocked property. 548.301 Section 548.301 Money and Finance: Treasury Regulations Relating to Money and Finance (Continued) OFFICE OF FOREIGN ASSETS CONTROL, DEPARTMENT OF THE TREASURY BELARUS SANCTIONS...

  5. 31 CFR 593.301 - Blocked account; blocked property.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... 31 Money and Finance:Treasury 3 2011-07-01 2011-07-01 false Blocked account; blocked property. 593.301 Section 593.301 Money and Finance: Treasury Regulations Relating to Money and Finance (Continued) OFFICE OF FOREIGN ASSETS CONTROL, DEPARTMENT OF THE TREASURY FORMER LIBERIAN REGIME OF CHARLES...

  6. 31 CFR 549.301 - Blocked account; blocked property.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... 31 Money and Finance:Treasury 3 2013-07-01 2013-07-01 false Blocked account; blocked property. 549.301 Section 549.301 Money and Finance: Treasury Regulations Relating to Money and Finance (Continued) OFFICE OF FOREIGN ASSETS CONTROL, DEPARTMENT OF THE TREASURY LEBANON SANCTIONS REGULATIONS...

  7. 31 CFR 549.301 - Blocked account; blocked property.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... 31 Money and Finance:Treasury 3 2012-07-01 2012-07-01 false Blocked account; blocked property. 549.301 Section 549.301 Money and Finance: Treasury Regulations Relating to Money and Finance (Continued) OFFICE OF FOREIGN ASSETS CONTROL, DEPARTMENT OF THE TREASURY LEBANON SANCTIONS REGULATIONS...

  8. 31 CFR 549.301 - Blocked account; blocked property.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... 31 Money and Finance:Treasury 3 2014-07-01 2014-07-01 false Blocked account; blocked property. 549.301 Section 549.301 Money and Finance: Treasury Regulations Relating to Money and Finance (Continued) OFFICE OF FOREIGN ASSETS CONTROL, DEPARTMENT OF THE TREASURY LEBANON SANCTIONS REGULATIONS...

  9. 31 CFR 549.301 - Blocked account; blocked property.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... 31 Money and Finance:Treasury 3 2011-07-01 2011-07-01 false Blocked account; blocked property. 549.301 Section 549.301 Money and Finance: Treasury Regulations Relating to Money and Finance (Continued) OFFICE OF FOREIGN ASSETS CONTROL, DEPARTMENT OF THE TREASURY LEBANON SANCTIONS REGULATIONS...

  10. 31 CFR 510.301 - Blocked account; blocked property.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... 31 Money and Finance:Treasury 3 2011-07-01 2011-07-01 false Blocked account; blocked property. 510.301 Section 510.301 Money and Finance: Treasury Regulations Relating to Money and Finance (Continued) OFFICE OF FOREIGN ASSETS CONTROL, DEPARTMENT OF THE TREASURY NORTH KOREA SANCTIONS REGULATIONS...

  11. 31 CFR 541.301 - Blocked account; blocked property.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... 31 Money and Finance:Treasury 3 2013-07-01 2013-07-01 false Blocked account; blocked property. 541.301 Section 541.301 Money and Finance: Treasury Regulations Relating to Money and Finance (Continued) OFFICE OF FOREIGN ASSETS CONTROL, DEPARTMENT OF THE TREASURY ZIMBABWE SANCTIONS REGULATIONS...

  12. 31 CFR 541.301 - Blocked account; blocked property.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... 31 Money and Finance:Treasury 3 2011-07-01 2011-07-01 false Blocked account; blocked property. 541.301 Section 541.301 Money and Finance: Treasury Regulations Relating to Money and Finance (Continued) OFFICE OF FOREIGN ASSETS CONTROL, DEPARTMENT OF THE TREASURY ZIMBABWE SANCTIONS REGULATIONS...

  13. 31 CFR 541.301 - Blocked account; blocked property.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... 31 Money and Finance:Treasury 3 2012-07-01 2012-07-01 false Blocked account; blocked property. 541.301 Section 541.301 Money and Finance: Treasury Regulations Relating to Money and Finance (Continued) OFFICE OF FOREIGN ASSETS CONTROL, DEPARTMENT OF THE TREASURY ZIMBABWE SANCTIONS REGULATIONS...

  14. 31 CFR 541.301 - Blocked account; blocked property.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... 31 Money and Finance:Treasury 3 2014-07-01 2014-07-01 false Blocked account; blocked property. 541.301 Section 541.301 Money and Finance: Treasury Regulations Relating to Money and Finance (Continued) OFFICE OF FOREIGN ASSETS CONTROL, DEPARTMENT OF THE TREASURY ZIMBABWE SANCTIONS REGULATIONS...

  15. 31 CFR 560.322 - Blocked account; blocked property.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... name of the Government of Iran, any Iranian financial institution, or any other person whose property and interests in property are blocked pursuant to § 560.211, or in which the Government of Iran,...

  16. 31 CFR 560.322 - Blocked account; blocked property.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... name of the Government of Iran, any Iranian financial institution, or any other person whose property and interests in property are blocked pursuant to § 560.211, or in which the Government of Iran,...

  17. 31 CFR 537.209 - Expenses of maintaining blocked property; liquidation of blocked account.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... 31 Money and Finance:Treasury 3 2011-07-01 2011-07-01 false Expenses of maintaining blocked property; liquidation of blocked account. 537.209 Section 537.209 Money and Finance: Treasury Regulations Relating to Money and Finance (Continued) OFFICE OF FOREIGN ASSETS CONTROL, DEPARTMENT OF THE...

  18. 31 CFR 537.209 - Expenses of maintaining blocked property; liquidation of blocked account.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 31 Money and Finance: Treasury 3 2010-07-01 2010-07-01 false Expenses of maintaining blocked property; liquidation of blocked account. 537.209 Section 537.209 Money and Finance: Treasury Regulations Relating to Money and Finance (Continued) OFFICE OF FOREIGN ASSETS CONTROL, DEPARTMENT OF THE...

  19. 31 CFR 595.203 - Holding of certain types of blocked property in interest-bearing accounts.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... 31 Money and Finance:Treasury 3 2014-07-01 2014-07-01 false Holding of certain types of blocked property in interest-bearing accounts. 595.203 Section 595.203 Money and Finance: Treasury Regulations Relating to Money and Finance (Continued) OFFICE OF FOREIGN ASSETS CONTROL, DEPARTMENT OF THE...

  20. 31 CFR 515.205 - Holding of certain types of blocked property in interest-bearing accounts.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... domestic bank includes any FSLIC-insured institution (as defined in 12 CFR 561.1). (j) For the purposes of... 31 Money and Finance: Treasury 3 2010-07-01 2010-07-01 false Holding of certain types of blocked property in interest-bearing accounts. 515.205 Section 515.205 Money and Finance: Treasury...

  1. 31 CFR 595.203 - Holding of certain types of blocked property in interest-bearing accounts.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... 31 Money and Finance:Treasury 3 2011-07-01 2011-07-01 false Holding of certain types of blocked property in interest-bearing accounts. 595.203 Section 595.203 Money and Finance: Treasury Regulations Relating to Money and Finance (Continued) OFFICE OF FOREIGN ASSETS CONTROL, DEPARTMENT OF THE...

  2. 31 CFR 575.203 - Holding of certain types of blocked property in interest-bearing accounts.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 31 Money and Finance: Treasury 3 2010-07-01 2010-07-01 false Holding of certain types of blocked property in interest-bearing accounts. 575.203 Section 575.203 Money and Finance: Treasury Regulations Relating to Money and Finance (Continued) OFFICE OF FOREIGN ASSETS CONTROL, DEPARTMENT OF THE...

  3. 31 CFR 515.205 - Holding of certain types of blocked property in interest-bearing accounts.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... domestic bank includes any FSLIC-insured institution (as defined in 12 CFR 561.1). (j) For the purposes of... 31 Money and Finance:Treasury 3 2012-07-01 2012-07-01 false Holding of certain types of blocked property in interest-bearing accounts. 515.205 Section 515.205 Money and Finance: Treasury...

  4. 31 CFR 585.203 - Holding of certain types of blocked property in interest-bearing accounts.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 31 Money and Finance: Treasury 3 2010-07-01 2010-07-01 false Holding of certain types of blocked property in interest-bearing accounts. 585.203 Section 585.203 Money and Finance: Treasury Regulations Relating to Money and Finance (Continued) OFFICE OF FOREIGN ASSETS CONTROL, DEPARTMENT OF THE...

  5. 31 CFR 515.205 - Holding of certain types of blocked property in interest-bearing accounts.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... domestic bank includes any FSLIC-insured institution (as defined in 12 CFR 561.1). (j) For the purposes of... 31 Money and Finance:Treasury 3 2013-07-01 2013-07-01 false Holding of certain types of blocked property in interest-bearing accounts. 515.205 Section 515.205 Money and Finance: Treasury...

  6. 31 CFR 515.205 - Holding of certain types of blocked property in interest-bearing accounts.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... domestic bank includes any FSLIC-insured institution (as defined in 12 CFR 561.1). (j) For the purposes of... 31 Money and Finance:Treasury 3 2011-07-01 2011-07-01 false Holding of certain types of blocked property in interest-bearing accounts. 515.205 Section 515.205 Money and Finance: Treasury...

  7. 31 CFR 515.205 - Holding of certain types of blocked property in interest-bearing accounts.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... domestic bank includes any FSLIC-insured institution (as defined in 12 CFR 561.1). (j) For the purposes of... 31 Money and Finance:Treasury 3 2014-07-01 2014-07-01 false Holding of certain types of blocked property in interest-bearing accounts. 515.205 Section 515.205 Money and Finance: Treasury...

  8. 31 CFR 595.203 - Holding of certain types of blocked property in interest-bearing accounts.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... 31 Money and Finance:Treasury 3 2013-07-01 2013-07-01 false Holding of certain types of blocked property in interest-bearing accounts. 595.203 Section 595.203 Money and Finance: Treasury Regulations Relating to Money and Finance (Continued) OFFICE OF FOREIGN ASSETS CONTROL, DEPARTMENT OF THE...

  9. 31 CFR 595.203 - Holding of certain types of blocked property in interest-bearing accounts.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... 31 Money and Finance:Treasury 3 2012-07-01 2012-07-01 false Holding of certain types of blocked property in interest-bearing accounts. 595.203 Section 595.203 Money and Finance: Treasury Regulations Relating to Money and Finance (Continued) OFFICE OF FOREIGN ASSETS CONTROL, DEPARTMENT OF THE...

  10. 31 CFR 595.203 - Holding of certain types of blocked property in interest-bearing accounts.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 31 Money and Finance: Treasury 3 2010-07-01 2010-07-01 false Holding of certain types of blocked property in interest-bearing accounts. 595.203 Section 595.203 Money and Finance: Treasury Regulations Relating to Money and Finance (Continued) OFFICE OF FOREIGN ASSETS CONTROL, DEPARTMENT OF THE TREASURY TERRORISM SANCTIONS REGULATIONS...

  11. 31 CFR 500.205 - Holding of certain types of blocked property in interest-bearing accounts.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... “domestic bank” includes any FSLIC-insured institution (as defined in 12 CFR 561.1). (j) For the purposes of... 31 Money and Finance: Treasury 3 2010-07-01 2010-07-01 false Holding of certain types of blocked property in interest-bearing accounts. 500.205 Section 500.205 Money and Finance: Treasury...

  12. 31 CFR 515.319 - Blocked account.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... 31 Money and Finance:Treasury 3 2011-07-01 2011-07-01 false Blocked account. 515.319 Section 515... § 515.319 Blocked account. The term blocked account shall mean an account in which any designated national has an interest, with respect to which account payments, transfers or withdrawals or...

  13. 31 CFR 515.319 - Blocked account.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 31 Money and Finance: Treasury 3 2010-07-01 2010-07-01 false Blocked account. 515.319 Section 515... § 515.319 Blocked account. The term blocked account shall mean an account in which any designated national has an interest, with respect to which account payments, transfers or withdrawals or...

  14. 31 CFR 500.319 - Blocked account.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 31 Money and Finance: Treasury 3 2010-07-01 2010-07-01 false Blocked account. 500.319 Section 500... § 500.319 Blocked account. The term blocked account shall mean an account in which any designated national has an interest, with respect to which account payments, transfers or withdrawals of...

  15. 31 CFR 536.203 - Holding of certain types of blocked property in interest-bearing accounts.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... NARCOTICS TRAFFICKING SANCTIONS REGULATIONS Prohibitions § 536.203 Holding of certain types of blocked... party on both accounts must be the same and must clearly indicate the specially designated narcotics... narcotics trafficker, the name of the account to which interest is credited must be the same. (b)...

  16. 31 CFR 536.203 - Holding of certain types of blocked property in interest-bearing accounts.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... NARCOTICS TRAFFICKING SANCTIONS REGULATIONS Prohibitions § 536.203 Holding of certain types of blocked... party on both accounts must be the same and must clearly indicate the specially designated narcotics... narcotics trafficker, the name of the account to which interest is credited must be the same. (b)...

  17. 31 CFR 536.203 - Holding of certain types of blocked property in interest-bearing accounts.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... NARCOTICS TRAFFICKING SANCTIONS REGULATIONS Prohibitions § 536.203 Holding of certain types of blocked... party on both accounts must be the same and must clearly indicate the specially designated narcotics... narcotics trafficker, the name of the account to which interest is credited must be the same. (b)...

  18. 31 CFR 536.203 - Holding of certain types of blocked property in interest-bearing accounts.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... NARCOTICS TRAFFICKING SANCTIONS REGULATIONS Prohibitions § 536.203 Holding of certain types of blocked... party on both accounts must be the same and must clearly indicate the specially designated narcotics... narcotics trafficker, the name of the account to which interest is credited must be the same. (b)...

  19. 31 CFR 536.203 - Holding of certain types of blocked property in interest-bearing accounts.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... NARCOTICS TRAFFICKING SANCTIONS REGULATIONS Prohibitions § 536.203 Holding of certain types of blocked... party on both accounts must be the same and must clearly indicate the specially designated narcotics... narcotics trafficker, the name of the account to which interest is credited must be the same. (b)...

  20. 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…

  1. 31 CFR 536.301 - Blocked account; blocked property.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ...) OFFICE OF FOREIGN ASSETS CONTROL, DEPARTMENT OF THE TREASURY NARCOTICS TRAFFICKING SANCTIONS REGULATIONS... specially designated narcotics trafficker or in which a specially designated narcotics trafficker has...

  2. 31 CFR 536.301 - Blocked account; blocked property.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ...) OFFICE OF FOREIGN ASSETS CONTROL, DEPARTMENT OF THE TREASURY NARCOTICS TRAFFICKING SANCTIONS REGULATIONS... specially designated narcotics trafficker or in which a specially designated narcotics trafficker has...

  3. 31 CFR 536.301 - Blocked account; blocked property.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ...) OFFICE OF FOREIGN ASSETS CONTROL, DEPARTMENT OF THE TREASURY NARCOTICS TRAFFICKING SANCTIONS REGULATIONS... specially designated narcotics trafficker or in which a specially designated narcotics trafficker has...

  4. 31 CFR 536.301 - Blocked account; blocked property.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... (Continued) OFFICE OF FOREIGN ASSETS CONTROL, DEPARTMENT OF THE TREASURY NARCOTICS TRAFFICKING SANCTIONS... name of a specially designated narcotics trafficker or in which a specially designated...

  5. 31 CFR 536.301 - Blocked account; blocked property.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ...) OFFICE OF FOREIGN ASSETS CONTROL, DEPARTMENT OF THE TREASURY NARCOTICS TRAFFICKING SANCTIONS REGULATIONS... specially designated narcotics trafficker or in which a specially designated narcotics trafficker has...

  6. Guidelines for School Property Accounting in Colorado.

    ERIC Educational Resources Information Center

    Stiverson, Clare L.

    This manual is basically a procedural outline to assist local school officials in developing and organizing a meaningful school property accounting system to comply with generally accepted governmental accounting principles. A list of references concerned with property accounting is included. (FS)

  7. 31 CFR 560.423 - Offshore transactions involving blocked property.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... Government of Iran, an Iranian financial institution, or any other person whose property and interests in property are blocked pursuant to § 560.211, or property in which the Government of Iran, an...

  8. 31 CFR 560.423 - Offshore transactions involving blocked property.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... Government of Iran, an Iranian financial institution, or any other person whose property and interests in property are blocked pursuant to § 560.211, or property in which the Government of Iran, an...

  9. Increasing School Safety through Juvenile Accountability Programs. Juvenile Accountability Incentive Block Grants (JAIBG) Program Bulletin.

    ERIC Educational Resources Information Center

    Decker, Scott H.

    This bulletin explores promotion of school safety by increasing students' accountability for their behavior. It provides information to facilitate the development of constructive, well-conceived, accountability-based programs that work with juvenile offenders. These programs also address the issues of violence, disorder, and fear. The bulletin…

  10. Determining the Mechanical Properties of Lattice Block Structures

    NASA Technical Reports Server (NTRS)

    Wilmoth, Nathan

    2013-01-01

    Lattice block structures and shape memory alloys possess several traits ideal for solving intriguing new engineering problems in industries such as aerospace, military, and transportation. Recent testing at the NASA Glenn Research Center has investigated the material properties of lattice block structures cast from a conventional aerospace titanium alloy as well as lattice block structures cast from nickel-titanium shape memory alloy. The lattice block structures for both materials were sectioned into smaller subelements for tension and compression testing. The results from the cast conventional titanium material showed that the expected mechanical properties were maintained. The shape memory alloy material was found to be extremely brittle from the casting process and only compression testing was completed. Future shape memory alloy lattice block structures will utilize an adjusted material composition that will provide a better quality casting. The testing effort resulted in baseline mechanical property data from the conventional titanium material for comparison to shape memory alloy materials once suitable castings are available.

  11. 31 CFR 576.408 - Payments from blocked accounts to satisfy obligations prohibited.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... 31 Money and Finance:Treasury 3 2011-07-01 2011-07-01 false Payments from blocked accounts to satisfy obligations prohibited. 576.408 Section 576.408 Money and Finance: Treasury Regulations Relating to Money and Finance (Continued) OFFICE OF FOREIGN ASSETS CONTROL, DEPARTMENT OF THE TREASURY...

  12. 31 CFR 576.408 - Payments from blocked accounts to satisfy obligations prohibited.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... 31 Money and Finance:Treasury 3 2012-07-01 2012-07-01 false Payments from blocked accounts to satisfy obligations prohibited. 576.408 Section 576.408 Money and Finance: Treasury Regulations Relating to Money and Finance (Continued) OFFICE OF FOREIGN ASSETS CONTROL, DEPARTMENT OF THE TREASURY...

  13. 31 CFR 576.408 - Payments from blocked accounts to satisfy obligations prohibited.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... 31 Money and Finance:Treasury 3 2013-07-01 2013-07-01 false Payments from blocked accounts to satisfy obligations prohibited. 576.408 Section 576.408 Money and Finance: Treasury Regulations Relating to Money and Finance (Continued) OFFICE OF FOREIGN ASSETS CONTROL, DEPARTMENT OF THE TREASURY...

  14. 31 CFR 576.408 - Payments from blocked accounts to satisfy obligations prohibited.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... 31 Money and Finance:Treasury 3 2014-07-01 2014-07-01 false Payments from blocked accounts to satisfy obligations prohibited. 576.408 Section 576.408 Money and Finance: Treasury Regulations Relating to Money and Finance (Continued) OFFICE OF FOREIGN ASSETS CONTROL, DEPARTMENT OF THE TREASURY...

  15. 31 CFR 594.408 - Payments from blocked accounts to satisfy obligations prohibited.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 31 Money and Finance: Treasury 3 2010-07-01 2010-07-01 false Payments from blocked accounts to satisfy obligations prohibited. 594.408 Section 594.408 Money and Finance: Treasury Regulations Relating to Money and Finance (Continued) OFFICE OF FOREIGN ASSETS CONTROL, DEPARTMENT OF THE TREASURY...

  16. 31 CFR 535.508 - Payments to blocked accounts in domestic banks.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... Iran or any Iranian entity is hereby authorized: Provided, Such payment or transfer shall not be made... the interest of Iran or an Iranian entity to any other country or person. (b) This section does not authorize: (1) Any payment or transfer to any blocked account held in a name other than that of Iran or...

  17. 31 CFR 535.508 - Payments to blocked accounts in domestic banks.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... Iran or any Iranian entity is hereby authorized: Provided, Such payment or transfer shall not be made... the interest of Iran or an Iranian entity to any other country or person. (b) This section does not authorize: (1) Any payment or transfer to any blocked account held in a name other than that of Iran or...

  18. 31 CFR 537.407 - Payments from blocked accounts to satisfy obligations prohibited.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... 31 Money and Finance:Treasury 3 2011-07-01 2011-07-01 false Payments from blocked accounts to satisfy obligations prohibited. 537.407 Section 537.407 Money and Finance: Treasury Regulations Relating to Money and Finance (Continued) OFFICE OF FOREIGN ASSETS CONTROL, DEPARTMENT OF THE TREASURY...

  19. 31 CFR 548.407 - Payments from blocked accounts to satisfy obligations prohibited.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 31 Money and Finance: Treasury 3 2010-07-01 2010-07-01 false Payments from blocked accounts to satisfy obligations prohibited. 548.407 Section 548.407 Money and Finance: Treasury Regulations Relating to Money and Finance (Continued) OFFICE OF FOREIGN ASSETS CONTROL, DEPARTMENT OF THE TREASURY...

  20. 31 CFR 549.407 - Payments from blocked accounts to satisfy obligations prohibited.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... 31 Money and Finance:Treasury 3 2013-07-01 2013-07-01 false Payments from blocked accounts to satisfy obligations prohibited. 549.407 Section 549.407 Money and Finance: Treasury Regulations Relating to Money and Finance (Continued) OFFICE OF FOREIGN ASSETS CONTROL, DEPARTMENT OF THE TREASURY...

  1. 31 CFR 549.407 - Payments from blocked accounts to satisfy obligations prohibited.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... 31 Money and Finance:Treasury 3 2011-07-01 2011-07-01 false Payments from blocked accounts to satisfy obligations prohibited. 549.407 Section 549.407 Money and Finance: Treasury Regulations Relating to Money and Finance (Continued) OFFICE OF FOREIGN ASSETS CONTROL, DEPARTMENT OF THE TREASURY...

  2. 31 CFR 549.407 - Payments from blocked accounts to satisfy obligations prohibited.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... 31 Money and Finance:Treasury 3 2014-07-01 2014-07-01 false Payments from blocked accounts to satisfy obligations prohibited. 549.407 Section 549.407 Money and Finance: Treasury Regulations Relating to Money and Finance (Continued) OFFICE OF FOREIGN ASSETS CONTROL, DEPARTMENT OF THE TREASURY...

  3. 31 CFR 549.407 - Payments from blocked accounts to satisfy obligations prohibited.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... 31 Money and Finance:Treasury 3 2012-07-01 2012-07-01 false Payments from blocked accounts to satisfy obligations prohibited. 549.407 Section 549.407 Money and Finance: Treasury Regulations Relating to Money and Finance (Continued) OFFICE OF FOREIGN ASSETS CONTROL, DEPARTMENT OF THE TREASURY...

  4. 31 CFR 537.407 - Payments from blocked accounts to satisfy obligations prohibited.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 31 Money and Finance: Treasury 3 2010-07-01 2010-07-01 false Payments from blocked accounts to satisfy obligations prohibited. 537.407 Section 537.407 Money and Finance: Treasury Regulations Relating to Money and Finance (Continued) OFFICE OF FOREIGN ASSETS CONTROL, DEPARTMENT OF THE TREASURY...

  5. Piezoelectric Properties of Non-Polar Block Copolymers

    SciTech Connect

    Pester, Christian; Ruppel, Markus A; Schoberth, Heiko; Schmidt, K.; Liedel, Clemens; Van Rijn, Patrick; Littrell, Ken; Schindler, Kerstin; Hiltl, Stephanie; Czubak, Thomas; Mays, Jimmy; Urban, Volker S; Boker, Alexander

    2011-01-01

    Piezoelectric properties in non-polar block copolymers are a novelty in the field of electroactive polymers. The piezoelectric susceptibility of poly(styrene-b-isoprene) block copolymer lamellae is found to be up to an order of magnitude higher when compared to classic piezoelectric materials. The electroactive response increases with temperature and is found to be strongest in the disordered phase.

  6. 31 CFR 546.201 - Prohibited transactions involving blocked property.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... Blocked Persons List (“SDN List”) (which is accessible via the Office of Foreign Assets Control's Web site... “ .” See § 546.411 concerning entities that may not be listed on the SDN list but whose property and... are blocked pending investigation pursuant to this part also are published on the SDN List,...

  7. 31 CFR 536.503 - Payments and transfers to blocked accounts in U.S. financial institutions.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... funds or transfer of credit or other financial or economic resources or assets into a blocked account in... NARCOTICS TRAFFICKING SANCTIONS REGULATIONS Licenses, Authorizations, and Statements of Licensing...

  8. Properties of permuted-block randomization in clinical trials.

    PubMed

    Matts, J P; Lachin, J M

    1988-12-01

    This article describes some of the important statistical properties of the commonly used permuted-block design, also known simply as blocked-randomization. Under a permutation model for statistical tests, proper analyses should employ tests that incorporate the blocking used in the randomization. These include the block-stratified Mantel-Haenszel chi-square test for binary data, the blocked analysis of variance F test, and the blocked nonparametric linear rank test. It is common, however, to ignore the blocking in the analysis. For these tests, it is shown that the size of a test obtained from an analysis incorporating the blocking (say T), versus an analysis ignoring the blocking (say TI), is related to the intrablock correlation coefficient (R) as TI = T(1-R). For blocks of common length 2m, the range of R is from -1/(2m-1) to 1. Thus, if there is a positive intrablock correlation, which is more likely than not for m greater than 1, an analysis ignoring blocking will be unduly conservative. Permutation tests are also presented for the case of stratified analyses within one or more subgroups of patients defined post hoc on the basis of a covariate. This provides a basis for the analysis when responses from some patients are assumed to be missing-at-random. An alternative strategy that requires no assumptions is to perform the analysis using only the subset of complete blocks in which no observations are missing. The Blackwell-Hodges model is used to assess the potential for selection bias induced by investigator attempts to guess which treatment is more likely to be assigned to each incoming patient. In an unmasked trial, the permuted-block design provides substantial potential for selection bias in the comparison of treatments due to the predictability of the assignments that is induced by the requirement of balance within blocks. Further, this bias is not eliminated by the use of random block sizes. We also modify the Blackwell-Hodges model to allow for

  9. 48 CFR 1304.201-70 - Accountable personal property.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... GENERAL ADMINISTRATIVE MATTERS Contract Distribution 1304.201-70 Accountable personal property. Provide... Governmentwide commercial purchase card is also to be reported to the property management office....

  10. 18 CFR 367.3990 - Account 399, Other tangible property.

    Code of Federal Regulations, 2012 CFR

    2012-04-01

    ... 18 Conservation of Power and Water Resources 1 2012-04-01 2012-04-01 false Account 399, Other tangible property. 367.3990 Section 367.3990 Conservation of Power and Water Resources FEDERAL ENERGY... GAS ACT Service Company Property Chart of Accounts § 367.3990 Account 399, Other tangible...

  11. 18 CFR 367.9240 - Account 924, Property insurance.

    Code of Federal Regulations, 2012 CFR

    2012-04-01

    ... 18 Conservation of Power and Water Resources 1 2012-04-01 2012-04-01 false Account 924, Property insurance. 367.9240 Section 367.9240 Conservation of Power and Water Resources FEDERAL ENERGY REGULATORY... ACT Operation and Maintenance Expense Chart of Accounts § 367.9240 Account 924, Property insurance....

  12. 18 CFR 367.1010 - Account 101, Service company property.

    Code of Federal Regulations, 2012 CFR

    2012-04-01

    ... 18 Conservation of Power and Water Resources 1 2012-04-01 2012-04-01 false Account 101, Service company property. 367.1010 Section 367.1010 Conservation of Power and Water Resources FEDERAL ENERGY... GAS ACT Balance Sheet Chart of Accounts § 367.1010 Account 101, Service company property. (a)...

  13. 18 CFR 367.3030 - Account 303, Miscellaneous intangible property.

    Code of Federal Regulations, 2012 CFR

    2012-04-01

    ... 18 Conservation of Power and Water Resources 1 2012-04-01 2012-04-01 false Account 303, Miscellaneous intangible property. 367.3030 Section 367.3030 Conservation of Power and Water Resources FEDERAL... NATURAL GAS ACT Service Company Property Chart of Accounts § 367.3030 Account 303,...

  14. 18 CFR 367.9240 - Account 924, Property insurance.

    Code of Federal Regulations, 2013 CFR

    2013-04-01

    ... 18 Conservation of Power and Water Resources 1 2013-04-01 2013-04-01 false Account 924, Property insurance. 367.9240 Section 367.9240 Conservation of Power and Water Resources FEDERAL ENERGY REGULATORY... ACT Operation and Maintenance Expense Chart of Accounts § 367.9240 Account 924, Property insurance....

  15. 18 CFR 367.1010 - Account 101, Service company property.

    Code of Federal Regulations, 2013 CFR

    2013-04-01

    ... 18 Conservation of Power and Water Resources 1 2013-04-01 2013-04-01 false Account 101, Service company property. 367.1010 Section 367.1010 Conservation of Power and Water Resources FEDERAL ENERGY... GAS ACT Balance Sheet Chart of Accounts § 367.1010 Account 101, Service company property. (a)...

  16. 18 CFR 367.3990 - Account 399, Other tangible property.

    Code of Federal Regulations, 2013 CFR

    2013-04-01

    ... 18 Conservation of Power and Water Resources 1 2013-04-01 2013-04-01 false Account 399, Other tangible property. 367.3990 Section 367.3990 Conservation of Power and Water Resources FEDERAL ENERGY... GAS ACT Service Company Property Chart of Accounts § 367.3990 Account 399, Other tangible...

  17. 18 CFR 367.3030 - Account 303, Miscellaneous intangible property.

    Code of Federal Regulations, 2013 CFR

    2013-04-01

    ... 18 Conservation of Power and Water Resources 1 2013-04-01 2013-04-01 false Account 303, Miscellaneous intangible property. 367.3030 Section 367.3030 Conservation of Power and Water Resources FEDERAL... NATURAL GAS ACT Service Company Property Chart of Accounts § 367.3030 Account 303,...

  18. 18 CFR 367.9240 - Account 924, Property insurance.

    Code of Federal Regulations, 2014 CFR

    2014-04-01

    ... 18 Conservation of Power and Water Resources 1 2014-04-01 2014-04-01 false Account 924, Property insurance. 367.9240 Section 367.9240 Conservation of Power and Water Resources FEDERAL ENERGY REGULATORY... ACT Operation and Maintenance Expense Chart of Accounts § 367.9240 Account 924, Property insurance....

  19. 18 CFR 367.1010 - Account 101, Service company property.

    Code of Federal Regulations, 2014 CFR

    2014-04-01

    ... 18 Conservation of Power and Water Resources 1 2014-04-01 2014-04-01 false Account 101, Service company property. 367.1010 Section 367.1010 Conservation of Power and Water Resources FEDERAL ENERGY... GAS ACT Balance Sheet Chart of Accounts § 367.1010 Account 101, Service company property. (a)...

  20. 18 CFR 367.3990 - Account 399, Other tangible property.

    Code of Federal Regulations, 2014 CFR

    2014-04-01

    ... 18 Conservation of Power and Water Resources 1 2014-04-01 2014-04-01 false Account 399, Other tangible property. 367.3990 Section 367.3990 Conservation of Power and Water Resources FEDERAL ENERGY... GAS ACT Service Company Property Chart of Accounts § 367.3990 Account 399, Other tangible...

  1. 18 CFR 367.3030 - Account 303, Miscellaneous intangible property.

    Code of Federal Regulations, 2014 CFR

    2014-04-01

    ... 18 Conservation of Power and Water Resources 1 2014-04-01 2014-04-01 false Account 303, Miscellaneous intangible property. 367.3030 Section 367.3030 Conservation of Power and Water Resources FEDERAL... NATURAL GAS ACT Service Company Property Chart of Accounts § 367.3030 Account 303,...

  2. 18 CFR 367.9240 - Account 924, Property insurance.

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ... 18 Conservation of Power and Water Resources 1 2011-04-01 2011-04-01 false Account 924, Property insurance. 367.9240 Section 367.9240 Conservation of Power and Water Resources FEDERAL ENERGY REGULATORY... ACT Operation and Maintenance Expense Chart of Accounts § 367.9240 Account 924, Property insurance....

  3. 18 CFR 367.1010 - Account 101, Service company property.

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ... 18 Conservation of Power and Water Resources 1 2011-04-01 2011-04-01 false Account 101, Service company property. 367.1010 Section 367.1010 Conservation of Power and Water Resources FEDERAL ENERGY... GAS ACT Balance Sheet Chart of Accounts § 367.1010 Account 101, Service company property. (a)...

  4. 18 CFR 367.3990 - Account 399, Other tangible property.

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ... 18 Conservation of Power and Water Resources 1 2011-04-01 2011-04-01 false Account 399, Other tangible property. 367.3990 Section 367.3990 Conservation of Power and Water Resources FEDERAL ENERGY... GAS ACT Service Company Property Chart of Accounts § 367.3990 Account 399, Other tangible...

  5. 18 CFR 367.1010 - Account 101, Service company property.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ... 18 Conservation of Power and Water Resources 1 2010-04-01 2010-04-01 false Account 101, Service company property. 367.1010 Section 367.1010 Conservation of Power and Water Resources FEDERAL ENERGY... GAS ACT Balance Sheet Chart of Accounts § 367.1010 Account 101, Service company property. (a)...

  6. 18 CFR 367.3030 - Account 303, Miscellaneous intangible property.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ... 18 Conservation of Power and Water Resources 1 2010-04-01 2010-04-01 false Account 303, Miscellaneous intangible property. 367.3030 Section 367.3030 Conservation of Power and Water Resources FEDERAL... NATURAL GAS ACT Service Company Property Chart of Accounts § 367.3030 Account 303,...

  7. 18 CFR 367.3990 - Account 399, Other tangible property.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ... 18 Conservation of Power and Water Resources 1 2010-04-01 2010-04-01 false Account 399, Other tangible property. 367.3990 Section 367.3990 Conservation of Power and Water Resources FEDERAL ENERGY... GAS ACT Service Company Property Chart of Accounts § 367.3990 Account 399, Other tangible...

  8. 18 CFR 367.9240 - Account 924, Property insurance.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ... 18 Conservation of Power and Water Resources 1 2010-04-01 2010-04-01 false Account 924, Property insurance. 367.9240 Section 367.9240 Conservation of Power and Water Resources FEDERAL ENERGY REGULATORY... ACT Operation and Maintenance Expense Chart of Accounts § 367.9240 Account 924, Property insurance....

  9. 31 CFR 545.201 - Prohibited transactions involving blocked property.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 31 Money and Finance: Treasury 3 2010-07-01 2010-07-01 false Prohibited transactions involving blocked property. 545.201 Section 545.201 Money and Finance: Treasury Regulations Relating to Money and Finance (Continued) OFFICE OF FOREIGN ASSETS CONTROL, DEPARTMENT OF THE TREASURY TALIBAN...

  10. 31 CFR 595.201 - Prohibited transactions involving blocked property.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 31 Money and Finance: Treasury 3 2010-07-01 2010-07-01 false Prohibited transactions involving blocked property. 595.201 Section 595.201 Money and Finance: Treasury Regulations Relating to Money and Finance (Continued) OFFICE OF FOREIGN ASSETS CONTROL, DEPARTMENT OF THE TREASURY TERRORISM...

  11. 31 CFR 501.603 - Reports on blocked property.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... 31 Money and Finance:Treasury 3 2013-07-01 2013-07-01 false Reports on blocked property. 501.603 Section 501.603 Money and Finance: Treasury Regulations Relating to Money and Finance (Continued) OFFICE... Federal Bulletin Board Online via GPO Access (Internet site:...

  12. 31 CFR 501.603 - Reports on blocked property.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... 31 Money and Finance:Treasury 3 2012-07-01 2012-07-01 false Reports on blocked property. 501.603 Section 501.603 Money and Finance: Treasury Regulations Relating to Money and Finance (Continued) OFFICE... Federal Bulletin Board Online via GPO Access (Internet site:...

  13. 31 CFR 501.603 - Reports on blocked property.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... 31 Money and Finance:Treasury 3 2014-07-01 2014-07-01 false Reports on blocked property. 501.603 Section 501.603 Money and Finance: Treasury Regulations Relating to Money and Finance (Continued) OFFICE... Federal Bulletin Board Online via GPO Access (Internet site:...

  14. 31 CFR 501.603 - Reports on blocked property.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... 31 Money and Finance:Treasury 3 2011-07-01 2011-07-01 false Reports on blocked property. 501.603 Section 501.603 Money and Finance: Treasury Regulations Relating to Money and Finance (Continued) OFFICE... Federal Bulletin Board Online via GPO Access (Internet site:...

  15. 31 CFR 501.603 - Reports on blocked property.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 31 Money and Finance: Treasury 3 2010-07-01 2010-07-01 false Reports on blocked property. 501.603 Section 501.603 Money and Finance: Treasury Regulations Relating to Money and Finance (Continued) OFFICE... Federal Bulletin Board Online via GPO Access (Internet site:...

  16. 76 FR 44757 - Blocking Property of Transnational Criminal Organizations

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-07-27

    ..., 2011. Billing code 3195-W1-P TD27JY11.023 [FR Doc. 2011-19156 Filed 7-26-11; 8:45 am] Billing code 4811...#0;#0; ] Executive Order 13581 of July 24, 2011 Blocking Property of Transnational Criminal... significant transnational criminal organizations, such as those listed in the Annex to this order,...

  17. 31 CFR 538.201 - Prohibited transactions involving blocked property.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... 31 Money and Finance:Treasury 3 2011-07-01 2011-07-01 false Prohibited transactions involving blocked property. 538.201 Section 538.201 Money and Finance: Treasury Regulations Relating to Money and Finance (Continued) OFFICE OF FOREIGN ASSETS CONTROL, DEPARTMENT OF THE TREASURY SUDANESE...

  18. Formation and structural properties of multi-block copolymer vesicles

    NASA Astrophysics Data System (ADS)

    Wang, Rong; Ma, Shiying

    2014-03-01

    Due to the unique structure, vesicles have attracted considerable attention for their potential applications, such as gene and drug delivery, microcapsules, nanoreactors, cell membrane mimetic, synthetic organelles, etc. By using dissipative particle dynamics, we studied the self-assembly of amphiphilic multi-block copolymer. The phase diagram was constructed by varying the interaction parameters and the composition of the block copolymers. The results show that the vesicles are stable in a large region which is different from the diblock copolymer or triblock copolymer. The structural properties of vesicles can be controlled by varying the interaction parameters and the length of the hydrophobic block. The relationship between the hydrophilic and hydrophobic block length vs the aqueous cavity size and vesicle size are revealed. The copolymers with shorter hydrophobic blocks length or the higher hydrophilicity are more likely to form vesicles with larger aqueous cavity size and vesicle size as well as thinner wall thickness. However, the increase in hydrophobic-block length results to form vesicles with smaller aqueous cavity size and larger vesicle size. Acknowledgments. This work has been supported by NNSFC (No. 21074053) and NBRPC (No. 2010CB923303).

  19. 31 CFR 595.503 - Payments and transfers to blocked accounts in U.S. financial institutions.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... TERRORISM SANCTIONS REGULATIONS Licenses, Authorizations, and Statements of Licensing Policy § 595.503... transfer of credit or other financial or economic resources or assets into a blocked account in a...

  20. 31 CFR 597.503 - Payments and transfers to blocked accounts in U.S. financial institutions.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... Licensing Policy § 597.503 Payments and transfers to blocked accounts in U.S. financial institutions. (a) Any payment of funds or transfer of credit or other financial or economic resources or assets by...

  1. 31 CFR 585.503 - Payments and transfers to blocked accounts in U.S. financial institutions.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... Policy § 585.503 Payments and transfers to blocked accounts in U.S. financial institutions. (a) Any payment of funds or transfer of credit or other financial or economic resources or assets into a...

  2. Properties of concrete blocks prepared with low grade recycled aggregates.

    PubMed

    Poon, Chi-Sun; Kou, Shi-cong; Wan, Hui-wen; Etxeberria, Miren

    2009-08-01

    Low grade recycled aggregates obtained from a construction waste sorting facility were tested to assess the feasibility of using these in the production of concrete blocks. The characteristics of the sorted construction waste are significantly different from that of crushed concrete rubbles that are mostly derived from demolition waste streams. This is due to the presence of higher percentages of non-concrete components (e.g. >10% soil, brick, tiles etc.) in the sorted construction waste. In the study reported in this paper, three series of concrete block mixtures were prepared by using the low grade recycled aggregates to replace (i) natural coarse granite (10mm), and (ii) 0, 25, 50, 75 and 100% replacement levels of crushed stone fine (crushed natural granite <5mm) in the concrete blocks. Test results on properties such as density, compressive strength, transverse strength and drying shrinkage as well as strength reduction after exposure to 800 degrees C are presented below. The results show that the soil content in the recycled fine aggregate was an important factor in affecting the properties of the blocks produced and the mechanical strength deceased with increasing low grade recycled fine aggregate content. But the higher soil content in the recycled aggregates reduced the reduction of compressive strength of the blocks after exposure to high temperature due probably to the formation of a new crystalline phase. The results show that the low grade recycled aggregates obtained from the construction waste sorting facility has potential to be used as aggregates for making non-structural pre-cast concrete blocks. PMID:19398196

  3. Hydration effects on the electronic properties of eumelanin building blocks.

    PubMed

    Assis Oliveira, Leonardo Bruno; L Fonseca, Tertius; Costa Cabral, Benedito J; Coutinho, Kaline; Canuto, Sylvio

    2016-08-28

    Theoretical results for the electronic properties of eumelanin building blocks in the gas phase and water are presented. The building blocks presently investigated include the monomeric species DHI (5,6-dihydroxyindole) or hydroquinone (HQ), DHICA (5,6-dihydroxyindole-2-carboxylic acid), indolequinone (IQ), quinone methide (MQ), two covalently bonded dimers [HM ≡ HQ + MQ and IM ≡ IQ + MQ], and two tetramers [HMIM ≡ HQ + IM, IMIM ≡ IM + IM]. The electronic properties in water were determined by carrying out sequential Monte Carlo/time dependent density functional theory calculations. The results illustrate the role played by hydrogen bonding and electrostatic interactions in the electronic properties of eumelanin building blocks in a polar environment. In water, the dipole moments of monomeric species are significantly increased ([54-79]%) relative to their gas phase values. Recently, it has been proposed that the observed enhancement of the higher-energy absorption intensity in eumelanin can be explained by excitonic coupling among eumelanin protomolecules [C.-T. Chen et al., Nat. Commun. 5, 3859 (2014)]. Here, we are providing evidence that for DHICA, IQ, and HMIM, the electronic absorption toward the higher-energy end of the spectrum ([180-220] nm) is enhanced by long-range Coulombic interactions with the water environment. It was verified that by superposing the absorption spectra of different eumelanin building blocks corresponding to the monomers, dimers, and tetramers in liquid water, the behaviour of the experimental spectrum, which is characterised by a nearly monotonic decay from the ultraviolet to the infrared, is qualitatively reproduced. This result is in keeping with a "chemical disorder model," where the broadband absorption of eumelanin pigments is determined by the superposition of the spectra associated with the monomeric and oligomeric building blocks. PMID:27586929

  4. Structure property relations in glassy-semicrystalline block copolymers

    NASA Astrophysics Data System (ADS)

    Khanna, Vikram

    The ability of block copolymers to segregate into nanoscale morphologies makes them a versatile class of engineering materials. This work investigates the relation between the block copolymer structure and its mechanical properties, film dynamics and diffusion kinetics. The first part investigates the influence of structure on the mechanical properties of poly(cyclohexylethylene)-poly(ethylene) (PCHE-PE) block copolymer films. For lamellar block copolymers the mechanical properties depend significantly on the chain architecture (diblock, triblock and pentablock). Diblock copolymer films show complete failure at small strains and pentablock copolymer films show the toughest, response. Moreover, the orientation of the cylinders in a cylinder forming pentablock copolymer affects the toughness of the block copolymer films. In the second part, the effect of surface energy and chain architecture on the orientation of microdomains in the same block copolymer films is investigated. Cylindrical and lamellar triblock copolymers with a PE midblock orient their microdomains normal to the surface. However, a lamellar diblock copolymer prefers a parallel orientation of the sheets with an E surface. Moreover, a cylindrical triblock copolymer with a reduced surface energy poly(ethylene-butylene) midblock orders with the cylinder domains oriented parallel to the surface. Self-consistent field theory calculations suggest that the entropic cost of forming a wetting layer comprised entirely of looping blocks for the triblock architecture, a constraint absent in diblock copolymers, stabilizes the perpendicular orientation. Thus in triblock copolymers, parallel orientations are only stabilized when the surface energy of the midblock is small enough to compensate for this conformational penalty. Finally, a study of the diffusion kinetics of cylinder forming poly(styrene)-poly(ethylene) triblock (SES) and pentablock (SESES) copolymers suggests that for similar molecular weights SESES

  5. Guidelines for School Property Accounting in Colorado, Part II--General Fixed Asset Accounts.

    ERIC Educational Resources Information Center

    Stiverson, Clare L.

    The second publication of a series of three issued by the Colorado Department of Education is designed as a guide for local school districts in the development of a property accounting system. It defines and classifies groups of accounts whereby financial information, taken from inventory records, may be transcribed into debit and credit entries…

  6. Structure-Property Relationships in Polyolefin Block Copolymers

    NASA Astrophysics Data System (ADS)

    Mansour, Ameara Salah

    Poly(cyclohexylethylene) (PCHE for a homopolymer or C in a block copolymer) is created by hydrogenating polystyrene, and this polymer exhibits interesting properties, such as a high glass transition temperature (147 °C), high flexural modulus (2.8 GPa), low stress optical coefficient (-0.2 * 10-9 Pa-1), and low cost. However, the inherently brittle nature of PCHE prevents it from being used in applications that simultaneously require high modulus, ductility, thermal stability, and optical clarity. Previous research has shown that incorporating PCHE into a block copolymer with rubbery poly(ethylene-alt-propylene) (P) or poly(ethylethylene) (EE) or semicrystalline polyethylene (E) results in a tough material. In some cases, applications also require specific mechanical or optical properties. In order to tune these properties, this research examined tuning crystallinity using two methods: (1) by controlling the microstructure of the soft block by synthesizing a random copolymer of E and EE, and (2) by blending high C content pentablock copolymers with semicrystalline and rubbery minority components. In the first study, diblock copolymers of C(EcoEE) also were used to understand how the microstructure of the random copolymer affects the thermodynamics of the system. In the second study, CECEC and CPCPC, designed to form the same morphology (hexagonally packed cylinders with glassy C matrices), and have similar order-to-disorder transition temperatures and domain spacings, were blended together. Isothermal crystallization experiments were used to determine how the confining E and P in one domain affects the crystallization process. The effect of architecture, the state of the minority component, and the percent crystallinity on the mechanical properties of high glass content materials was also examined. These results were compared to the mechanical properties of homopolymer PCHE, polystyrene, and polycarbonate. The processing conditions needed to create smooth films of

  7. 48 CFR 245.103-71 - Transferring Government property accountability.

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ... 48 Federal Acquisition Regulations System 3 2013-10-01 2013-10-01 false Transferring Government... ACQUISITION REGULATIONS SYSTEM, DEPARTMENT OF DEFENSE CONTRACT MANAGEMENT GOVERNMENT PROPERTY General 245.103-71 Transferring Government property accountability. Follow the procedures at PGI 245.103-71...

  8. 48 CFR 245.103-71 - Transferring Government property accountability.

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ... 48 Federal Acquisition Regulations System 3 2014-10-01 2014-10-01 false Transferring Government... ACQUISITION REGULATIONS SYSTEM, DEPARTMENT OF DEFENSE CONTRACT MANAGEMENT GOVERNMENT PROPERTY General 245.103-71 Transferring Government property accountability. Follow the procedures at PGI 245.103-71...

  9. Further seismic properties of a spring-block earthquake model

    NASA Astrophysics Data System (ADS)

    Angulo-Brown, F.; Muñoz-Diosdado, A.

    1999-11-01

    Within the context of self-organized critical systems, Olami et al. (OFC) (1992) proposed a spring-block earthquake model. This model is non-conservative and reproduces some seismic properties such as the Gutenberg-Richter law for the size distribution of earthquakes. In this paper we study further seismic properties of the OFC model and we find the stair-shaped curves of the cumulative seismicity. We also find that in the long term these curves have a characteristic straight-line envelope of constant slope that works as an attractor of the cumulative seismicity, and that these slopes depend on the system size and cannot be arbitrarily large. Finally, we report that in the OFC model the recurrence time distribution for large events follows a log-normal behaviour for some non-conservation levels.

  10. 31 CFR 576.504 - Payments and transfers to blocked accounts in U.S. financial institutions.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... 31 Money and Finance:Treasury 3 2014-07-01 2014-07-01 false Payments and transfers to blocked accounts in U.S. financial institutions. 576.504 Section 576.504 Money and Finance: Treasury Regulations Relating to Money and Finance (Continued) OFFICE OF FOREIGN ASSETS CONTROL, DEPARTMENT OF THE TREASURY...

  11. 31 CFR 576.504 - Payments and transfers to blocked accounts in U.S. financial institutions.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... 31 Money and Finance:Treasury 3 2013-07-01 2013-07-01 false Payments and transfers to blocked accounts in U.S. financial institutions. 576.504 Section 576.504 Money and Finance: Treasury Regulations Relating to Money and Finance (Continued) OFFICE OF FOREIGN ASSETS CONTROL, DEPARTMENT OF THE TREASURY...

  12. 31 CFR 576.504 - Payments and transfers to blocked accounts in U.S. financial institutions.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... 31 Money and Finance:Treasury 3 2011-07-01 2011-07-01 false Payments and transfers to blocked accounts in U.S. financial institutions. 576.504 Section 576.504 Money and Finance: Treasury Regulations Relating to Money and Finance (Continued) OFFICE OF FOREIGN ASSETS CONTROL, DEPARTMENT OF THE TREASURY...

  13. 31 CFR 576.504 - Payments and transfers to blocked accounts in U.S. financial institutions.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... 31 Money and Finance:Treasury 3 2012-07-01 2012-07-01 false Payments and transfers to blocked accounts in U.S. financial institutions. 576.504 Section 576.504 Money and Finance: Treasury Regulations Relating to Money and Finance (Continued) OFFICE OF FOREIGN ASSETS CONTROL, DEPARTMENT OF THE TREASURY...

  14. 31 CFR 510.504 - Payments and transfers to blocked accounts in U.S. financial institutions.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... 31 Money and Finance:Treasury 3 2012-07-01 2012-07-01 false Payments and transfers to blocked accounts in U.S. financial institutions. 510.504 Section 510.504 Money and Finance: Treasury Regulations Relating to Money and Finance (Continued) OFFICE OF FOREIGN ASSETS CONTROL, DEPARTMENT OF THE TREASURY NORTH KOREA SANCTIONS REGULATIONS...

  15. 31 CFR 510.504 - Payments and transfers to blocked accounts in U.S. financial institutions.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... 31 Money and Finance:Treasury 3 2011-07-01 2011-07-01 false Payments and transfers to blocked accounts in U.S. financial institutions. 510.504 Section 510.504 Money and Finance: Treasury Regulations Relating to Money and Finance (Continued) OFFICE OF FOREIGN ASSETS CONTROL, DEPARTMENT OF THE TREASURY NORTH KOREA SANCTIONS REGULATIONS...

  16. 31 CFR 562.504 - Payments and transfers to blocked accounts in U.S. financial institutions.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... 31 Money and Finance:Treasury 3 2011-07-01 2011-07-01 false Payments and transfers to blocked accounts in U.S. financial institutions. 562.504 Section 562.504 Money and Finance: Treasury Regulations Relating to Money and Finance (Continued) OFFICE OF FOREIGN ASSETS CONTROL, DEPARTMENT OF THE TREASURY IRANIAN HUMAN RIGHTS ABUSES...

  17. 31 CFR 562.504 - Payments and transfers to blocked accounts in U.S. financial institutions.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... 31 Money and Finance:Treasury 3 2012-07-01 2012-07-01 false Payments and transfers to blocked accounts in U.S. financial institutions. 562.504 Section 562.504 Money and Finance: Treasury Regulations Relating to Money and Finance (Continued) OFFICE OF FOREIGN ASSETS CONTROL, DEPARTMENT OF THE TREASURY IRANIAN HUMAN RIGHTS ABUSES...

  18. 31 CFR 562.504 - Payments and transfers to blocked accounts in U.S. financial institutions.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... 31 Money and Finance:Treasury 3 2013-07-01 2013-07-01 false Payments and transfers to blocked accounts in U.S. financial institutions. 562.504 Section 562.504 Money and Finance: Treasury Regulations Relating to Money and Finance (Continued) OFFICE OF FOREIGN ASSETS CONTROL, DEPARTMENT OF THE TREASURY IRANIAN HUMAN RIGHTS ABUSES...

  19. 31 CFR 593.203 - Holding of blocked funds in interest-bearing accounts; investment and reinvestment.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... (15 U.S.C. 78a et seq.), provided the funds are invested in a money market fund or in U.S. Treasury... placed in a blocked account pursuant to this paragraph (b) may not be invested in instruments the... cases. (f) Funds subject to this section may not be held, invested, or reinvested in a manner...

  20. 31 CFR 593.203 - Holding of blocked funds in interest-bearing accounts; investment and reinvestment.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... 31 Money and Finance:Treasury 3 2012-07-01 2012-07-01 false Holding of blocked funds in interest-bearing accounts; investment and reinvestment. 593.203 Section 593.203 Money and Finance: Treasury Regulations Relating to Money and Finance (Continued) OFFICE OF FOREIGN ASSETS CONTROL, DEPARTMENT OF...

  1. 31 CFR 593.203 - Holding of blocked funds in interest-bearing accounts; investment and reinvestment.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... 31 Money and Finance:Treasury 3 2011-07-01 2011-07-01 false Holding of blocked funds in interest-bearing accounts; investment and reinvestment. 593.203 Section 593.203 Money and Finance: Treasury Regulations Relating to Money and Finance (Continued) OFFICE OF FOREIGN ASSETS CONTROL, DEPARTMENT OF...

  2. 31 CFR 593.203 - Holding of blocked funds in interest-bearing accounts; investment and reinvestment.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... 31 Money and Finance:Treasury 3 2013-07-01 2013-07-01 false Holding of blocked funds in interest-bearing accounts; investment and reinvestment. 593.203 Section 593.203 Money and Finance: Treasury Regulations Relating to Money and Finance (Continued) OFFICE OF FOREIGN ASSETS CONTROL, DEPARTMENT OF...

  3. 31 CFR 593.203 - Holding of blocked funds in interest-bearing accounts; investment and reinvestment.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 31 Money and Finance: Treasury 3 2010-07-01 2010-07-01 false Holding of blocked funds in interest-bearing accounts; investment and reinvestment. 593.203 Section 593.203 Money and Finance: Treasury Regulations Relating to Money and Finance (Continued) OFFICE OF FOREIGN ASSETS CONTROL, DEPARTMENT OF...

  4. 31 CFR 562.504 - Payments and transfers to blocked accounts in U.S. financial institutions.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... 31 Money and Finance:Treasury 3 2014-07-01 2014-07-01 false Payments and transfers to blocked accounts in U.S. financial institutions. 562.504 Section 562.504 Money and Finance: Treasury Regulations Relating to Money and Finance (Continued) OFFICE OF FOREIGN ASSETS CONTROL, DEPARTMENT OF THE TREASURY IRANIAN HUMAN RIGHTS ABUSES...

  5. Properties of train traffic flow in a moving block system

    NASA Astrophysics Data System (ADS)

    Wang, Min; Zeng, Jun-Wei; Qian, Yong-Sheng; Li, Wen-Jun; Yang, Fang; Jia, Xin-Xin

    2012-07-01

    The development direction of railways is toward the improvement of capacity and service quality, where the service quality includes safety, schedule, high speed, and comfort. In light of the existing cellular automaton models, in this paper, we develop a model to analyze the mixed running processes of trains with maximal speeds of 500 km/h and 350 km/h respectively in the moving block system. In the proposed model, we establish some sound rules to control the running processes of a train, where the rules include the departure rules in the intermediate stations, the overtaking rules, and the conditions of speed limitation for a train stopping at a station or passing through a station. With the consideration of the mixed ratio and the distance between two adjacent stations, the properties of the train traffic flow (including capacity and average speed) are simulated. The numerical results show that the interactions among different trains will affect the capacity, and a proper increase of the spatial distance between two adjacent stations can enhance the capacity and the average speed under the moving block.

  6. 18 CFR 367.3030 - Account 303, Miscellaneous intangible property.

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ... 18 Conservation of Power and Water Resources 1 2011-04-01 2011-04-01 false Account 303, Miscellaneous intangible property. 367.3030 Section 367.3030 Conservation of Power and Water Resources FEDERAL ENERGY REGULATORY COMMISSION, DEPARTMENT OF ENERGY REGULATIONS UNDER THE PUBLIC UTILITY HOLDING COMPANY ACT OF 2005, FEDERAL POWER ACT AND...

  7. Structure and flow properties of block copolyelectrolyte hydrogels

    NASA Astrophysics Data System (ADS)

    Srivastava, Samanvaya; Tirrell, Matthew

    2015-03-01

    Polyelectrolyte complexes (PEC) are dense, polymer-rich phases that form when oppositely charged polyelectrolyte chains spontaneously associate and phase separate in aqueous mediums. Bulk phase separation of the PECs can be evaded by combining one or both of the polyelectrolytes with a neutral polymer, thus engineering pathways for self-assembly of PEC based micelles and hydrogels with large-scale ordering of the nanoscale PEC domains. The PEC domains in these assemblies can encapsulate both hydrophobic and hydrophilic therapeutics and thus have tremendous potential in drug delivery, diagnostic and tissue engineering applications. This study will present insights on the equilibrium structure and self-assembly kinetics of PEC hybrid hydrogels through detailed rheology studies of self-assembled materials comprising of functionalized polyallyl glycidyl ethers (PAGE) connected to either single poly(ethylene glycol) (PEG) chain to form diblock copolymers or as functionalized end-groups on a triblock copolymer with a PEG midblock. The effect of key parameters such as polymer concentration, polymer block lengths, salt, ionic strength, and degree of charge mismatch on the equilibrium materials properties will be discussed, with a special emphasis on the temporal evolution of flow properties, and will lead to comparisons with the rheology models for associating polymers. Complementary studies with extensive static and dynamic light, X-ray and neutron scattering investigations will also be presented, thus providing a comprehensive structural description of these materials.

  8. 76 FR 47646 - Additional Designation of Person Whose Property and Interests in Property Are Blocked Pursuant to...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-08-05

    ...The Treasury Department's Office of Foreign Assets Control (``OFAC'') is publishing the name of one individual whose property and interests in property are blocked pursuant to Executive Order 13536 of April 12, 2010, ``Blocking Property of Certain Persons Contributing to the Conflict in...

  9. 31 CFR 515.528 - Certain transactions with respect to blocked foreign intellectual property.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... 31 Money and Finance:Treasury 3 2011-07-01 2011-07-01 false Certain transactions with respect to blocked foreign intellectual property. 515.528 Section 515.528 Money and Finance: Treasury Regulations... Certain transactions with respect to blocked foreign intellectual property. (a) The following...

  10. 75 FR 53837 - Blocking Property of Certain Persons With Respect to North Korea

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-09-01

    ... Executive Order 13551--Blocking Property of Certain Persons With Respect to North Korea #0; #0; #0... Blocking Property of Certain Persons With Respect to North Korea By the authority vested in me as President... the situation in North Korea, I, BARACK OBAMA, President of the United States of America,...

  11. 3 CFR 13581 - Executive Order 13581 of July 24, 2011. Blocking Property of Transnational Criminal Organizations

    Code of Federal Regulations, 2012 CFR

    2012-01-01

    ... 3 The President 1 2012-01-01 2012-01-01 false Executive Order 13581 of July 24, 2011. Blocking Property of Transnational Criminal Organizations 13581 Order 13581 Presidential Documents Executive Orders Executive Order 13581 of July 24, 2011 EO 13581 Blocking Property of Transnational Criminal Organizations...

  12. 3 CFR 13566 - Executive Order 13566 of February 25, 2011. Blocking Property and Prohibiting Certain...

    Code of Federal Regulations, 2012 CFR

    2012-01-01

    ... 3 The President 1 2012-01-01 2012-01-01 false Executive Order 13566 of February 25, 2011. Blocking Property and Prohibiting Certain Transactions Related to Libya 13566 Order 13566 Presidential Documents Executive Orders Executive Order 13566 of February 25, 2011 EO 13566 Blocking Property and...

  13. 31 CFR 515.528 - Certain transactions with respect to blocked foreign intellectual property.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 31 Money and Finance: Treasury 3 2010-07-01 2010-07-01 false Certain transactions with respect to blocked foreign intellectual property. 515.528 Section 515.528 Money and Finance: Treasury Regulations... Certain transactions with respect to blocked foreign intellectual property. (a) The following...

  14. 78 FR 79726 - Designation of Four Individuals Pursuant to Executive Order 13581, “Blocking Property of...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-12-31

    ...The Treasury Department's Office of Foreign Assets Control (``OFAC'') is publishing the names of four individuals whose property and interests in property are blocked pursuant to Executive Order 13581 of July 24, 2011, ``Blocking Property of Transnational Criminal...

  15. Tailoring Phase Behavior and Mechanical Properties in Thermoplastic Elastomers through Block Sequence and Macromolecular Architecture

    NASA Astrophysics Data System (ADS)

    Burns, Adam; Register, Richard

    2015-03-01

    Block copolymers exhibit unique properties which depend not only on the identities of the constituent blocks but also the block sequence and macromolecular architecture. Thermoplastic elastomers (TPEs) are a prime example. In TPEs the arrangement of glassy end blocks flanking a long rubbery midblock gives rise to a physically cross-linked, elastic solid. Exchanging the glassy blocks for crystalline blocks can improve the processability and solvent resistance, but adversely affects the mechanical performance. The block sequence crystalline-glassy-rubbery-glassy-crystalline has been developed to combine the advantages of both crystalline and glassy blocks. Careful selection of block lengths produces materials in which the order-disorder transition temperature lies below the melting point of the crystalline block, ensuring that the melt will be homogeneous above the melting point. Access to single-phase melts provides a large reduction in viscosity and elasticity over conventional TPEs, which remain microphase-separated in the melt. Inserting the glassy blocks between the crystalline and rubbery blocks produces a vitreous layer surrounding the crystalline domains, which improves the room-temperature mechanical performance. Incorporating the crystalline-glassy-rubbery motif into the arms of star block copolymers adds another level of control. The star architecture introduces a permanent cross-link at the center of the star without appreciably affecting the phase behavior.

  16. 31 CFR 536.201 - Prohibited transactions involving blocked property.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... Finance (Continued) OFFICE OF FOREIGN ASSETS CONTROL, DEPARTMENT OF THE TREASURY NARCOTICS TRAFFICKING... property or interests in property of a specially designated narcotics trafficker that are in the...

  17. 31 CFR 536.201 - Prohibited transactions involving blocked property.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... Finance (Continued) OFFICE OF FOREIGN ASSETS CONTROL, DEPARTMENT OF THE TREASURY NARCOTICS TRAFFICKING... property or interests in property of a specially designated narcotics trafficker that are in the...

  18. 31 CFR 536.201 - Prohibited transactions involving blocked property.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... Finance (Continued) OFFICE OF FOREIGN ASSETS CONTROL, DEPARTMENT OF THE TREASURY NARCOTICS TRAFFICKING... property or interests in property of a specially designated narcotics trafficker that are in the...

  19. 31 CFR 536.201 - Prohibited transactions involving blocked property.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... Finance (Continued) OFFICE OF FOREIGN ASSETS CONTROL, DEPARTMENT OF THE TREASURY NARCOTICS TRAFFICKING... property or interests in property of a specially designated narcotics trafficker that are in the...

  20. 31 CFR 536.201 - Prohibited transactions involving blocked property.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... Finance (Continued) OFFICE OF FOREIGN ASSETS CONTROL, DEPARTMENT OF THE TREASURY NARCOTICS TRAFFICKING... property or interests in property of a specially designated narcotics trafficker that are in the...

  1. 31 CFR 548.201 - Prohibited transactions involving blocked property.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... Foreign Assets Control's Specially Designated Nationals and Blocked Persons List (“SDN List”) with the identifier “ .” The SDN List is accessible through the following page on the Office of Foreign Assets Control's Web site: http://www.treasury.gov/sdn. Additional information pertaining to the SDN List can...

  2. 31 CFR 593.201 - Prohibited transactions involving blocked property.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... the identifier into Appendix A to 31 CFR chapter V. In addition, section 203 of the International... an ongoing basis with the identifier into Appendix A to 31 CFR chapter V. Sections 501.806 and 501... Designated Nationals and Blocked Persons List (the “SDN List”), which is accessible via the Office of...

  3. 31 CFR 542.201 - Prohibited transactions involving blocked property.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... Assets Control's Specially Designated Nationals and Blocked Persons List (“SDN List”) with the identifier “ .” The SDN List is accessible through the following page on the Office of Foreign Assets Control's Web site: http://www.treasury.gov/sdn. Additional information pertaining to the SDN List can be found...

  4. 31 CFR 548.201 - Prohibited transactions involving blocked property.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... Foreign Assets Control's Specially Designated Nationals and Blocked Persons List (“SDN List”) with the identifier “ .” The SDN List is accessible through the following page on the Office of Foreign Assets Control's Web site: http://www.treasury.gov/sdn. Additional information pertaining to the SDN List can...

  5. 31 CFR 593.201 - Prohibited transactions involving blocked property.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... Specially Designated Nationals and Blocked Persons List (“SDN List”) with the identifier “ .” The SDN List...://www.treasury.gov/sdn. Additional information pertaining to the SDN List can be found in appendix A to... section also are published in the Federal Register and incorporated into the SDN List with the...

  6. 31 CFR 546.201 - Prohibited transactions involving blocked property.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... Control's Specially Designated Nationals and Blocked Persons List (“SDN List”) with the identifier “ .” The SDN List is accessible through the following page on the Office of Foreign Assets Control's Web site: http://www.treasury.gov/sdn. Additional information pertaining to the SDN List can be found...

  7. 31 CFR 576.201 - Prohibited transactions involving blocked property.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... 12724. The Iraqi Sanctions Regulations, 31 CFR part 575, which implemented Executive Orders 12722 and 12724, have been removed from 31 CFR chapter V. (c) The prohibitions in paragraphs (a) and (b) of this... Blocked Persons List (“SDN List”) with the identifier “ ” (for persons designated pursuant to...

  8. 31 CFR 544.201 - Prohibited transactions involving blocked property.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... Office of Foreign Assets Control's Specially Designated Nationals and Blocked Persons List (“SDN List”) with the identifier “ .” The SDN List is accessible through the following page on the Office of Foreign Assets Control's Web site: http://www.treasury.gov/sdn. Additional information pertaining to the SDN...

  9. 31 CFR 543.201 - Prohibited transactions involving blocked property.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... Specially Designated Nationals and Blocked Persons List (“SDN List”) with the identifier “ .” The SDN List...://www.treasury.gov/sdn. Additional information pertaining to the SDN List can be found in appendix A to this chapter. See § 543.411 concerning entities that may not be listed on the SDN List but...

  10. 31 CFR 544.201 - Prohibited transactions involving blocked property.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... Office of Foreign Assets Control's Specially Designated Nationals and Blocked Persons List (“SDN List”) with the identifier “ .” The SDN List is accessible through the following page on the Office of Foreign Assets Control's Web site: http://www.treasury.gov/sdn. Additional information pertaining to the SDN...

  11. 31 CFR 537.201 - Prohibited transactions involving blocked property.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... Federal Register and incorporated into OFAC's Specially Designated Nationals and Blocked Persons List (SDN List) with the identifier “ .” The SDN List is accessible through the following page on OFAC's Web site: www.treasury.gov/sdn. Additional information pertaining to the SDN List can be found in Appendix A...

  12. 31 CFR 541.201 - Prohibited transactions involving blocked property.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... Office of Foreign Assets Control's Specially Designated Nationals and Blocked Persons List (“SDN List”) with the identifier “ .” The SDN List is accessible through the following page on the Office of Foreign Assets Control's Web site: http://www.treasury.gov/sdn. Additional information pertaining to the SDN...

  13. 31 CFR 544.201 - Prohibited transactions involving blocked property.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... Office of Foreign Assets Control's Specially Designated Nationals and Blocked Persons List (“SDN List”) with the identifier “ .” The SDN List is accessible through the following page on the Office of Foreign Assets Control's Web site: http://www.treasury.gov/sdn. Additional information pertaining to the SDN...

  14. 31 CFR 542.201 - Prohibited transactions involving blocked property.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... Assets Control's Specially Designated Nationals and Blocked Persons List (“SDN List”) with the identifier “ .” The SDN List is accessible through the following page on the Office of Foreign Assets Control's Web site: http://www.treasury.gov/sdn. Additional information pertaining to the SDN List can be found...

  15. 31 CFR 548.201 - Prohibited transactions involving blocked property.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... and Blocked Persons List (“SDN” list) (which is accessible via the Office of Foreign Assets Control's... the identifier “ .” See § 548.411 concerning entities that may not be listed on the SDN list but whose... published on the SDN list, published in the Federal Register, and incorporated into Appendix A to...

  16. 31 CFR 546.201 - Prohibited transactions involving blocked property.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... Control's Specially Designated Nationals and Blocked Persons List (“SDN List”) with the identifier “ .” The SDN List is accessible through the following page on the Office of Foreign Assets Control's Web site: http://www.treasury.gov/sdn. Additional information pertaining to the SDN List can be found...

  17. 31 CFR 546.201 - Prohibited transactions involving blocked property.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... Control's Specially Designated Nationals and Blocked Persons List (“SDN List”) with the identifier “ .” The SDN List is accessible through the following page on the Office of Foreign Assets Control's Web site: http://www.treasury.gov/sdn. Additional information pertaining to the SDN List can be found...

  18. 31 CFR 546.201 - Prohibited transactions involving blocked property.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... Control's Specially Designated Nationals and Blocked Persons List (“SDN List”) with the identifier “ .” The SDN List is accessible through the following page on the Office of Foreign Assets Control's Web site: http://www.treasury.gov/sdn. Additional information pertaining to the SDN List can be found...

  19. 31 CFR 593.201 - Prohibited transactions involving blocked property.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... Specially Designated Nationals and Blocked Persons List (“SDN List”) with the identifier “ .” The SDN List...://www.treasury.gov/sdn. Additional information pertaining to the SDN List can be found in appendix A to... section also are published in the Federal Register and incorporated into the SDN List with the...

  20. 31 CFR 593.201 - Prohibited transactions involving blocked property.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... Specially Designated Nationals and Blocked Persons List (“SDN List”) with the identifier “ .” The SDN List...://www.treasury.gov/sdn. Additional information pertaining to the SDN List can be found in appendix A to... section also are published in the Federal Register and incorporated into the SDN List with the...

  1. 31 CFR 544.201 - Prohibited transactions involving blocked property.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... Designated Nationals and Blocked Persons List (“SDN” list) (which is accessible via the Office of Foreign... chapter with the identifier “ .” See § 544.411 concerning entities that may not be listed on the SDN list... pending investigation pursuant to this part also are published on the SDN list, published in the...

  2. 31 CFR 541.201 - Prohibited transactions involving blocked property.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... Office of Foreign Assets Control's Specially Designated Nationals and Blocked Persons List (“SDN List”) with the identifier “ .” The SDN List is accessible through the following page on the Office of Foreign Assets Control's Web site: http://www.treasury.gov/sdn. Additional information pertaining to the SDN...

  3. 31 CFR 593.201 - Prohibited transactions involving blocked property.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... Specially Designated Nationals and Blocked Persons List (“SDN List”) with the identifier “ .” The SDN List...://www.treasury.gov/sdn. Additional information pertaining to the SDN List can be found in appendix A to... section also are published in the Federal Register and incorporated into the SDN List with the...

  4. 31 CFR 548.201 - Prohibited transactions involving blocked property.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... Foreign Assets Control's Specially Designated Nationals and Blocked Persons List (“SDN List”) with the identifier “ .” The SDN List is accessible through the following page on the Office of Foreign Assets Control's Web site: http://www.treasury.gov/sdn. Additional information pertaining to the SDN List can...

  5. 31 CFR 543.201 - Prohibited transactions involving blocked property.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... Specially Designated Nationals and Blocked Persons List (“SDN List”) with the identifier “ .” The SDN List...://www.treasury.gov/sdn. Additional information pertaining to the SDN List can be found in appendix A to this chapter. See § 543.411 concerning entities that may not be listed on the SDN List but...

  6. 31 CFR 576.201 - Prohibited transactions involving blocked property.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... 12724. The Iraqi Sanctions Regulations, 31 CFR part 575, which implemented Executive Orders 12722 and 12724, have been removed from 31 CFR chapter V. (c) The prohibitions in paragraphs (a) and (b) of this... Blocked Persons List (“SDN List”) with the identifier “ ” (for persons designated pursuant to...

  7. 31 CFR 560.211 - Prohibited transactions involving blocked property.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... Blocked Persons List (“SDN List”) with the identifier “ .” The SDN List is accessible through the following page on the Office of Foreign Control's Web site: www.treasury.gov/sdn. Additional information pertaining to the SDN List can be found in appendix A to this chapter. See § 560.425 concerning entities...

  8. 31 CFR 543.201 - Prohibited transactions involving blocked property.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... Specially Designated Nationals and Blocked Persons List (“SDN List”) with the identifier “ .” The SDN List...://www.treasury.gov/sdn. Additional information pertaining to the SDN List can be found in appendix A to this chapter. See § 543.411 concerning entities that may not be listed on the SDN List but...

  9. 31 CFR 594.201 - Prohibited transactions involving blocked property.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... other parts of 31 CFR chapter V, including but not limited to the Terrorism Sanctions Regulations (part... Nationals and Blocked Persons List (“SDN List”) with the identifier “ .” The SDN List is accessible through the following page on the Office of Foreign Assets Control's Web site:...

  10. 31 CFR 544.201 - Prohibited transactions involving blocked property.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... Office of Foreign Assets Control's Specially Designated Nationals and Blocked Persons List (“SDN List”) with the identifier “ .” The SDN List is accessible through the following page on the Office of Foreign Assets Control's Web site: http://www.treasury.gov/sdn. Additional information pertaining to the SDN...

  11. 31 CFR 576.201 - Prohibited transactions involving blocked property.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... 12724. The Iraqi Sanctions Regulations, 31 CFR part 575, which implemented Executive Orders 12722 and 12724, have been removed from 31 CFR chapter V. (c) The prohibitions in paragraphs (a) and (b) of this... Blocked Persons List (“SDN List”) with the identifier “ ” (for persons designated pursuant to...

  12. 31 CFR 576.201 - Prohibited transactions involving blocked property.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... 12724. The Iraqi Sanctions Regulations, 31 CFR part 575, which implemented Executive Orders 12722 and 12724, have been removed from 31 CFR chapter V. (c) The prohibitions in paragraphs (a) and (b) of this... Blocked Persons List (“SDN List”) with the identifier “ ” (for persons designated pursuant to...

  13. 31 CFR 541.201 - Prohibited transactions involving blocked property.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... Office of Foreign Assets Control's Specially Designated Nationals and Blocked Persons List (“SDN List”) with the identifier “ .” The SDN List is accessible through the following page on the Office of Foreign Assets Control's Web site: http://www.treasury.gov/sdn. Additional information pertaining to the SDN...

  14. 31 CFR 543.201 - Prohibited transactions involving blocked property.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... Specially Designated Nationals and Blocked Persons List (“SDN List”) with the identifier “ .” The SDN List...://www.treasury.gov/sdn. Additional information pertaining to the SDN List can be found in appendix A to this chapter. See § 543.411 concerning entities that may not be listed on the SDN List but...

  15. 31 CFR 541.201 - Prohibited transactions involving blocked property.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... Office of Foreign Assets Control's Specially Designated Nationals and Blocked Persons List (“SDN List”) with the identifier “ .” The SDN List is accessible through the following page on the Office of Foreign Assets Control's Web site: http://www.treasury.gov/sdn. Additional information pertaining to the SDN...

  16. 31 CFR 548.201 - Prohibited transactions involving blocked property.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... Foreign Assets Control's Specially Designated Nationals and Blocked Persons List (“SDN List”) with the identifier “ .” The SDN List is accessible through the following page on the Office of Foreign Assets Control's Web site: http://www.treasury.gov/sdn. Additional information pertaining to the SDN List can...

  17. 31 CFR 594.201 - Prohibited transactions involving blocked property.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... other parts of 31 CFR chapter V, including but not limited to the Terrorism Sanctions Regulations (part... Nationals and Blocked Persons List (“SDN List”) with the identifier “ .” The SDN List is accessible through the following page on the Office of Foreign Assets Control's Web site:...

  18. 31 CFR 594.201 - Prohibited transactions involving blocked property.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... prohibitions set forth in this part are separate from and in addition to other parts of 31 CFR chapter V... Nationals and Blocked Persons List (“SDN List”) with the identifier “ .” The SDN List is accessible through the following page on the Office of Foreign Assets Control's Web site:...

  19. 31 CFR 594.201 - Prohibited transactions involving blocked property.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... prohibitions set forth in this part are separate from and in addition to other parts of 31 CFR chapter V... Nationals and Blocked Persons List (“SDN List”) with the identifier “ .” The SDN List is accessible through the following page on the Office of Foreign Assets Control's Web site:...

  20. 49 CFR 1242.16 - Road property damaged-other (account XX-19-48).

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ... 49 Transportation 9 2014-10-01 2014-10-01 false Road property damaged-other (account XX-19-48... Structures § 1242.16 Road property damaged—other (account XX-19-48). Separate common expenses in proportion... accounts: Road Property Damaged—Running (XX-17-48) Road Property Damaged—Switching (XX-18-48)...

  1. 49 CFR 1242.16 - Road property damaged-other (account XX-19-48).

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ... 49 Transportation 9 2013-10-01 2013-10-01 false Road property damaged-other (account XX-19-48... Structures § 1242.16 Road property damaged—other (account XX-19-48). Separate common expenses in proportion... accounts: Road Property Damaged—Running (XX-17-48) Road Property Damaged—Switching (XX-18-48)...

  2. 49 CFR 1242.16 - Road property damaged-other (account XX-19-48).

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... 49 Transportation 9 2010-10-01 2010-10-01 false Road property damaged-other (account XX-19-48... Structures § 1242.16 Road property damaged—other (account XX-19-48). Separate common expenses in proportion... accounts: Road Property Damaged—Running (XX-17-48) Road Property Damaged—Switching (XX-18-48)...

  3. 49 CFR 1242.16 - Road property damaged-other (account XX-19-48).

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ... 49 Transportation 9 2011-10-01 2011-10-01 false Road property damaged-other (account XX-19-48... Structures § 1242.16 Road property damaged—other (account XX-19-48). Separate common expenses in proportion... accounts: Road Property Damaged—Running (XX-17-48) Road Property Damaged—Switching (XX-18-48)...

  4. 49 CFR 1242.16 - Road property damaged-other (account XX-19-48).

    Code of Federal Regulations, 2012 CFR

    2012-10-01

    ... 49 Transportation 9 2012-10-01 2012-10-01 false Road property damaged-other (account XX-19-48... Structures § 1242.16 Road property damaged—other (account XX-19-48). Separate common expenses in proportion... accounts: Road Property Damaged—Running (XX-17-48) Road Property Damaged—Switching (XX-18-48)...

  5. Accountability.

    ERIC Educational Resources Information Center

    The Newsletter of the Comprehensive Center-Region VI, 1999

    1999-01-01

    Controversy surrounding the accountability movement is related to how the movement began in response to dissatisfaction with public schools. Opponents see it as one-sided, somewhat mean-spirited, and a threat to the professional status of teachers. Supporters argue that all other spheres of the workplace have accountability systems and that the…

  6. Accountability.

    ERIC Educational Resources Information Center

    Lashway, Larry

    1999-01-01

    This issue reviews publications that provide a starting point for principals looking for a way through the accountability maze. Each publication views accountability differently, but collectively these readings argue that even in an era of state-mandated assessment, principals can pursue proactive strategies that serve students' needs. James A.…

  7. 78 FR 32304 - Designation of Entity Pursuant to Executive Order 13224 of September 23, 2001, “Blocking Property...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-05-29

    ... ``Blocking Property of the Government of Syria and Prohibiting Certain Transactions with Respect to Syria... 17, 2011 ``Blocking Property of the Government of Syria and Prohibiting Certain Transactions with Respect to Syria'' (collectively, the ``Orders''). OFAC is also publishing identifying...

  8. 75 FR 81716 - Additional Designation Pursuant to Executive Order 13469 of July 25, 2008 “Blocking Property of...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-12-28

    ... ``Blocking Property of Additional Persons Undermining Democratic Processes or Institutions in Zimbabwe... ``Blocking Property of Additional Persons Undermining Democratic Processes or Institutions in Zimbabwe'' (the... issued Executive Order 13469 with respect to Zimbabwe pursuant to, inter alia, the...

  9. The versatility in morphology and physical properties offered by chain shuttled olefin block copolymers

    NASA Astrophysics Data System (ADS)

    Weinhold, Jeffrey

    2014-03-01

    Chain shuttling catalysis enables the production of olefin block copolymers (OBCs) with a wide range of block compositions. Unique morphology and property combinations can be achieved with highly crystalline hard blocks and low crystallinity or fully amorphous soft blocks. The effect of the amount of comonomer in the soft blocks on phase behavior, morphology and properties will be the focus of this presentation. In one class of materials, the soft blocks contain just enough octene comonomer to give elastic behavior but, unlike a random copolymer-based olefin elastomer, the soft segments are held together by thick crystals formed by the hard blocks. In addition to strengthening the network, these crystals provide temperature resistance and, by solidifying at higher temperature, they allow faster product fabrication. Increasing the soft block's octene content yields the next class of materials which have improved compatibility with polypropylene. This property allows the formation of fine, uniformly-dispersed OBC elastomer particles in PP. Since the impact strength of toughened PP increases as the particle size is reduced, a lower amount of elastomer is required to achieve an application's target for toughness. The direct benefit of lower elastomer loading is an increase in modulus, which enables lightweighting in applications. With further increases in the soft block's octene content, the incompatibility between the hard and soft blocks becomes large enough to cause the OBCs to form ordered melt morphologies. In the solid state, the alternating crystalline and amorphous regions have surprisingly large domain spacings and, due to the difference in refractive index between the domains, the periodicity results in a partial photonic band gap for frequencies in the visible spectrum. Comparisons to the morphology of monodisperse block copolymers and the predictions of theories will be presented. Also, the results of an extension to strong segregation theory will be shown

  10. 26 CFR 1.167(a)-7 - Accounting for depreciable property.

    Code of Federal Regulations, 2012 CFR

    2012-04-01

    ... 26 Internal Revenue 2 2012-04-01 2012-04-01 false Accounting for depreciable property. 1.167(a)-7 Section 1.167(a)-7 Internal Revenue INTERNAL REVENUE SERVICE, DEPARTMENT OF THE TREASURY (CONTINUED....167(a)-7 Accounting for depreciable property. (a) Depreciable property may be accounted for...

  11. 26 CFR 1.167(a)-7 - Accounting for depreciable property.

    Code of Federal Regulations, 2013 CFR

    2013-04-01

    ... 26 Internal Revenue 2 2013-04-01 2013-04-01 false Accounting for depreciable property. 1.167(a)-7 Section 1.167(a)-7 Internal Revenue INTERNAL REVENUE SERVICE, DEPARTMENT OF THE TREASURY (CONTINUED....167(a)-7 Accounting for depreciable property. (a) Depreciable property may be accounted for...

  12. 26 CFR 1.167(a)-7 - Accounting for depreciable property.

    Code of Federal Regulations, 2014 CFR

    2014-04-01

    ... contained in 26 CFR part 1 edition revised as of April 1, 2011, applies to taxable years beginning before... 26 Internal Revenue 2 2014-04-01 2014-04-01 false Accounting for depreciable property. 1.167(a)-7....167(a)-7 Accounting for depreciable property. (a) Depreciable property may be accounted for...

  13. 31 CFR 586.201 - Prohibited transactions involving blocked property.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... persons designated in or pursuant to 31 CFR § 587.201(a), transactions or transfers by U.S. persons that..., instructions, licenses, or otherwise, no property or interests in property of the Governments of the FRY (S&M... trade financing for, the Governments of the FRY (S&M), the Republic of Serbia, and the Republic...

  14. 31 CFR 598.203 - Prohibited transactions involving blocked property.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... Finance (Continued) OFFICE OF FOREIGN ASSETS CONTROL, DEPARTMENT OF THE TREASURY FOREIGN NARCOTICS KINGPIN..., in property or interests in property of a specially designated narcotics trafficker is prohibited. (b... specially designated narcotics trafficker is prohibited. This prohibition includes but is not limited to...

  15. 31 CFR 598.203 - Prohibited transactions involving blocked property.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... Finance (Continued) OFFICE OF FOREIGN ASSETS CONTROL, DEPARTMENT OF THE TREASURY FOREIGN NARCOTICS KINGPIN..., in property or interests in property of a specially designated narcotics trafficker is prohibited. (b... specially designated narcotics trafficker is prohibited. This prohibition includes but is not limited to...

  16. 31 CFR 598.203 - Prohibited transactions involving blocked property.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... Finance (Continued) OFFICE OF FOREIGN ASSETS CONTROL, DEPARTMENT OF THE TREASURY FOREIGN NARCOTICS KINGPIN..., in property or interests in property of a specially designated narcotics trafficker is prohibited. (b... specially designated narcotics trafficker is prohibited. This prohibition includes but is not limited to...

  17. Deviations from the Gutenberg–Richter law on account of a random distribution of block sizes

    SciTech Connect

    Sibiryakov, B. P.

    2015-10-27

    This paper studies properties of a continuum with structure. The characteristic size of the structure governs the fact that difference relations are nonautomatically transformed into differential ones. It is impossible to consider an infinitesimal volume of a body, to which the major conservation laws could be applied, because the minimum representative volume of the body must contain at least a few elementary microstructures. The corresponding equations of motion are equations of infinite order, solutions of which include, along with usual sound waves, unusual waves with abnormally low velocities without a lower limit. It is shown that in such media weak perturbations can increase or decrease outside the limits. The number of complex roots of the corresponding dispersion equation, which can be interpreted as the number of unstable solutions, depends on the specific surface of cracks and is an almost linear dependence on a logarithmic scale, as in the seismological Gutenberg–Richter law. If the distance between one pore (crack) to another one is a random value with some distribution, we must write another dispersion equation and examine different scenarios depending on the statistical characteristics of the random distribution. In this case, there are sufficient deviations from the Gutenberg–Richter law and this theoretical result corresponds to some field and laboratory observations.

  18. Deviations from the Gutenberg-Richter law on account of a random distribution of block sizes

    NASA Astrophysics Data System (ADS)

    Sibiryakov, B. P.

    2015-10-01

    This paper studies properties of a continuum with structure. The characteristic size of the structure governs the fact that difference relations are nonautomatically transformed into differential ones. It is impossible to consider an infinitesimal volume of a body, to which the major conservation laws could be applied, because the minimum representative volume of the body must contain at least a few elementary microstructures. The corresponding equations of motion are equations of infinite order, solutions of which include, along with usual sound waves, unusual waves with abnormally low velocities without a lower limit. It is shown that in such media weak perturbations can increase or decrease outside the limits. The number of complex roots of the corresponding dispersion equation, which can be interpreted as the number of unstable solutions, depends on the specific surface of cracks and is an almost linear dependence on a logarithmic scale, as in the seismological Gutenberg-Richter law. If the distance between one pore (crack) to another one is a random value with some distribution, we must write another dispersion equation and examine different scenarios depending on the statistical characteristics of the random distribution. In this case, there are sufficient deviations from the Gutenberg-Richter law and this theoretical result corresponds to some field and laboratory observations.

  19. 31 CFR 538.201 - Prohibited transactions involving blocked property.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... interests in property of the Government of Sudan, that are in the United States, that hereafter come within... Government of Sudan, and held within the possession or control of a U.S. person is prohibited,...

  20. 31 CFR 538.201 - Prohibited transactions involving blocked property.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... interests in property of the Government of Sudan, that are in the United States, that hereafter come within... Government of Sudan, and held within the possession or control of a U.S. person is prohibited,...

  1. 31 CFR 538.201 - Prohibited transactions involving blocked property.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... interests in property of the Government of Sudan, that are in the United States, that hereafter come within... Government of Sudan, and held within the possession or control of a U.S. person is prohibited,...

  2. 31 CFR 538.201 - Prohibited transactions involving blocked property.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... interests in property of the Government of Sudan, that are in the United States, that hereafter come within... Government of Sudan, and held within the possession or control of a U.S. person is prohibited,...

  3. Preparation and icephobic properties of polymethyltrifluoropropylsiloxane-polyacrylate block copolymers

    NASA Astrophysics Data System (ADS)

    Li, Xiaohui; Zhao, Yunhui; Li, Hui; Yuan, Xiaoyan

    2014-10-01

    Five polymethyltrifluoropropylsiloxane (PMTFPS)-polyacrylate block copolymers (PMTFPS-b-polyacrylate) were synthesized by free radical polymerization of methyl methacrylate, n-butyl acrylate and hydroxyethyl methacrylate using PMTFPS macroazoinitiator (PMTFPS-MAI) in range of 10-50 mass percentages. The morphology, surface chemical composition and wettability of the prepared copolymer films were investigated by transmission electron microscopy, atomic force microscopy, X-ray photoelectron spectroscopy, and water contact angle measurement. Delayed icing time and ice shear strength of the films were also detected for the icephobic purpose. The surface morphologies of the copolymers were different from those of the bulk because of the migration of the PMTFPS segments to the air interface during the film formation. Maximal delayed icing time (186 s at -15 °C) and reduction of the ice shear strength (301 ± 10 kPa) which was significantly lower than that of polyacrylates (804 ± 37 kPa) were achieved when the content of PMTFPS-MAI was 20 wt%. The icephobicity of the copolymers was attributed primarily to the enrichment of PMTFPS on the film surface and synergistic effect of both silicone and fluorine. Thus, the results show that the PMTFPS-b-polyacrylate copolymer can be used as icephobic coating materials potentially.

  4. 31 CFR 543.201 - Prohibited transactions involving blocked property.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... Persons List (“SDN List”) (which is accessible via the Office of Foreign Assets Control's Web site... “ .” See § 543.411 concerning entities that may not be listed on the SDN list but whose property and... pursuant to this part also are published on the SDN List, published in the Federal Register...

  5. 31 CFR 510.406 - Entities owned by a person whose property and interests in property are blocked.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... 31 Money and Finance:Treasury 3 2012-07-01 2012-07-01 false Entities owned by a person whose property and interests in property are blocked. 510.406 Section 510.406 Money and Finance: Treasury Regulations Relating to Money and Finance (Continued) OFFICE OF FOREIGN ASSETS CONTROL, DEPARTMENT OF THE TREASURY NORTH KOREA SANCTIONS...

  6. 31 CFR 510.406 - Entities owned by a person whose property and interests in property are blocked.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... 31 Money and Finance:Treasury 3 2011-07-01 2011-07-01 false Entities owned by a person whose property and interests in property are blocked. 510.406 Section 510.406 Money and Finance: Treasury Regulations Relating to Money and Finance (Continued) OFFICE OF FOREIGN ASSETS CONTROL, DEPARTMENT OF THE TREASURY NORTH KOREA SANCTIONS...

  7. 31 CFR 562.406 - Entities owned by a person whose property and interests in property are blocked.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... 31 Money and Finance:Treasury 3 2011-07-01 2011-07-01 false Entities owned by a person whose property and interests in property are blocked. 562.406 Section 562.406 Money and Finance: Treasury Regulations Relating to Money and Finance (Continued) OFFICE OF FOREIGN ASSETS CONTROL, DEPARTMENT OF THE TREASURY IRANIAN HUMAN RIGHTS ABUSES...

  8. 31 CFR 562.406 - Entities owned by a person whose property and interests in property are blocked.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... 31 Money and Finance:Treasury 3 2013-07-01 2013-07-01 false Entities owned by a person whose property and interests in property are blocked. 562.406 Section 562.406 Money and Finance: Treasury Regulations Relating to Money and Finance (Continued) OFFICE OF FOREIGN ASSETS CONTROL, DEPARTMENT OF THE TREASURY IRANIAN HUMAN RIGHTS ABUSES...

  9. 31 CFR 562.406 - Entities owned by a person whose property and interests in property are blocked.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... 31 Money and Finance:Treasury 3 2012-07-01 2012-07-01 false Entities owned by a person whose property and interests in property are blocked. 562.406 Section 562.406 Money and Finance: Treasury Regulations Relating to Money and Finance (Continued) OFFICE OF FOREIGN ASSETS CONTROL, DEPARTMENT OF THE TREASURY IRANIAN HUMAN RIGHTS ABUSES...

  10. 31 CFR 562.406 - Entities owned by a person whose property and interests in property are blocked.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... 31 Money and Finance:Treasury 3 2014-07-01 2014-07-01 false Entities owned by a person whose property and interests in property are blocked. 562.406 Section 562.406 Money and Finance: Treasury Regulations Relating to Money and Finance (Continued) OFFICE OF FOREIGN ASSETS CONTROL, DEPARTMENT OF THE TREASURY IRANIAN HUMAN RIGHTS ABUSES...

  11. 18 CFR 367.4040 - Account 404, Amortization of limited-term property.

    Code of Federal Regulations, 2012 CFR

    2012-04-01

    ... 18 Conservation of Power and Water Resources 1 2012-04-01 2012-04-01 false Account 404, Amortization of limited-term property. 367.4040 Section 367.4040 Conservation of Power and Water Resources....4040 Account 404, Amortization of limited-term property. This account must include amortization...

  12. 18 CFR 367.1011 - Account 101.1, Property under capital leases.

    Code of Federal Regulations, 2012 CFR

    2012-04-01

    ... 18 Conservation of Power and Water Resources 1 2012-04-01 2012-04-01 false Account 101.1, Property under capital leases. 367.1011 Section 367.1011 Conservation of Power and Water Resources FEDERAL ENERGY... GAS ACT Balance Sheet Chart of Accounts § 367.1011 Account 101.1, Property under capital leases....

  13. 18 CFR 367.3991 - Account 399.1, Asset retirement costs for service company property.

    Code of Federal Regulations, 2012 CFR

    2012-04-01

    ... 18 Conservation of Power and Water Resources 1 2012-04-01 2012-04-01 false Account 399.1, Asset retirement costs for service company property. 367.3991 Section 367.3991 Conservation of Power and Water..., FEDERAL POWER ACT AND NATURAL GAS ACT Service Company Property Chart of Accounts § 367.3991 Account...

  14. 18 CFR 367.1011 - Account 101.1, Property under capital leases.

    Code of Federal Regulations, 2013 CFR

    2013-04-01

    ... 18 Conservation of Power and Water Resources 1 2013-04-01 2013-04-01 false Account 101.1, Property under capital leases. 367.1011 Section 367.1011 Conservation of Power and Water Resources FEDERAL ENERGY... GAS ACT Balance Sheet Chart of Accounts § 367.1011 Account 101.1, Property under capital leases....

  15. 18 CFR 367.4040 - Account 404, Amortization of limited-term property.

    Code of Federal Regulations, 2013 CFR

    2013-04-01

    ... 18 Conservation of Power and Water Resources 1 2013-04-01 2013-04-01 false Account 404, Amortization of limited-term property. 367.4040 Section 367.4040 Conservation of Power and Water Resources....4040 Account 404, Amortization of limited-term property. This account must include amortization...

  16. 18 CFR 367.3991 - Account 399.1, Asset retirement costs for service company property.

    Code of Federal Regulations, 2013 CFR

    2013-04-01

    ... 18 Conservation of Power and Water Resources 1 2013-04-01 2013-04-01 false Account 399.1, Asset retirement costs for service company property. 367.3991 Section 367.3991 Conservation of Power and Water..., FEDERAL POWER ACT AND NATURAL GAS ACT Service Company Property Chart of Accounts § 367.3991 Account...

  17. 18 CFR 367.1011 - Account 101.1, Property under capital leases.

    Code of Federal Regulations, 2014 CFR

    2014-04-01

    ... 18 Conservation of Power and Water Resources 1 2014-04-01 2014-04-01 false Account 101.1, Property under capital leases. 367.1011 Section 367.1011 Conservation of Power and Water Resources FEDERAL ENERGY... GAS ACT Balance Sheet Chart of Accounts § 367.1011 Account 101.1, Property under capital leases....

  18. 18 CFR 367.4040 - Account 404, Amortization of limited-term property.

    Code of Federal Regulations, 2014 CFR

    2014-04-01

    ... 18 Conservation of Power and Water Resources 1 2014-04-01 2014-04-01 false Account 404, Amortization of limited-term property. 367.4040 Section 367.4040 Conservation of Power and Water Resources....4040 Account 404, Amortization of limited-term property. This account must include amortization...

  19. 18 CFR 367.3991 - Account 399.1, Asset retirement costs for service company property.

    Code of Federal Regulations, 2014 CFR

    2014-04-01

    ... 18 Conservation of Power and Water Resources 1 2014-04-01 2014-04-01 false Account 399.1, Asset retirement costs for service company property. 367.3991 Section 367.3991 Conservation of Power and Water..., FEDERAL POWER ACT AND NATURAL GAS ACT Service Company Property Chart of Accounts § 367.3991 Account...

  20. 18 CFR 367.3991 - Account 399.1, Asset retirement costs for service company property.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ... 18 Conservation of Power and Water Resources 1 2010-04-01 2010-04-01 false Account 399.1, Asset retirement costs for service company property. 367.3991 Section 367.3991 Conservation of Power and Water..., FEDERAL POWER ACT AND NATURAL GAS ACT Service Company Property Chart of Accounts § 367.3991 Account...

  1. 18 CFR 367.4040 - Account 404, Amortization of limited-term property.

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ... 18 Conservation of Power and Water Resources 1 2011-04-01 2011-04-01 false Account 404, Amortization of limited-term property. 367.4040 Section 367.4040 Conservation of Power and Water Resources....4040 Account 404, Amortization of limited-term property. This account must include amortization...

  2. 18 CFR 367.1011 - Account 101.1, Property under capital leases.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ... 18 Conservation of Power and Water Resources 1 2010-04-01 2010-04-01 false Account 101.1, Property under capital leases. 367.1011 Section 367.1011 Conservation of Power and Water Resources FEDERAL ENERGY... GAS ACT Balance Sheet Chart of Accounts § 367.1011 Account 101.1, Property under capital leases....

  3. 18 CFR 367.4040 - Account 404, Amortization of limited-term property.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ... 18 Conservation of Power and Water Resources 1 2010-04-01 2010-04-01 false Account 404, Amortization of limited-term property. 367.4040 Section 367.4040 Conservation of Power and Water Resources....4040 Account 404, Amortization of limited-term property. This account must include amortization...

  4. 18 CFR 367.3991 - Account 399.1, Asset retirement costs for service company property.

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ... 18 Conservation of Power and Water Resources 1 2011-04-01 2011-04-01 false Account 399.1, Asset retirement costs for service company property. 367.3991 Section 367.3991 Conservation of Power and Water..., FEDERAL POWER ACT AND NATURAL GAS ACT Service Company Property Chart of Accounts § 367.3991 Account...

  5. 18 CFR 367.1011 - Account 101.1, Property under capital leases.

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ... 18 Conservation of Power and Water Resources 1 2011-04-01 2011-04-01 false Account 101.1, Property under capital leases. 367.1011 Section 367.1011 Conservation of Power and Water Resources FEDERAL ENERGY... GAS ACT Balance Sheet Chart of Accounts § 367.1011 Account 101.1, Property under capital leases....

  6. 48 CFR 1852.245-71 - Installation-accountable Government property.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... Government property. 1852.245-71 Section 1852.245-71 Federal Acquisition Regulations System NATIONAL... Provisions and Clauses 1852.245-71 Installation-accountable Government property. As prescribed in 1845.106-70(b), insert the following clause: Installation-Accountable Government Property (JUN 1998) (a)...

  7. 76 FR 54534 - Designation of One Entity Pursuant to Executive Order 13572 of April 29, 2011, “Blocking Property...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-09-01

    ...The Treasury Department's Office of Foreign Assets Control (``OFAC'') is publishing the name of one entity whose property and interests in property are blocked pursuant to Executive Order 13572 of April 29, 2011, ``Blocking Property of Certain Persons with Respect to Human Rights Abuses in...

  8. 31 CFR 589.403 - Termination and acquisition of an interest in blocked property.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... 31 Money and Finance:Treasury 3 2014-07-01 2014-07-01 false Termination and acquisition of an interest in blocked property. 589.403 Section 589.403 Money and Finance: Treasury Regulations Relating to Money and Finance (Continued) OFFICE OF FOREIGN ASSETS CONTROL, DEPARTMENT OF THE TREASURY...

  9. 31 CFR 558.403 - Termination and acquisition of an interest in blocked property.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... 31 Money and Finance:Treasury 3 2014-07-01 2014-07-01 false Termination and acquisition of an interest in blocked property. 558.403 Section 558.403 Money and Finance: Treasury Regulations Relating to Money and Finance (Continued) OFFICE OF FOREIGN ASSETS CONTROL, DEPARTMENT OF THE TREASURY SOUTH...

  10. 31 CFR 594.404 - Termination and acquisition of an interest in blocked property.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 31 Money and Finance: Treasury 3 2010-07-01 2010-07-01 false Termination and acquisition of an interest in blocked property. 594.404 Section 594.404 Money and Finance: Treasury Regulations Relating to Money and Finance (Continued) OFFICE OF FOREIGN ASSETS CONTROL, DEPARTMENT OF THE TREASURY...

  11. 31 CFR 510.403 - Termination and acquisition of an interest in blocked property.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... 31 Money and Finance:Treasury 3 2012-07-01 2012-07-01 false Termination and acquisition of an interest in blocked property. 510.403 Section 510.403 Money and Finance: Treasury Regulations Relating to Money and Finance (Continued) OFFICE OF FOREIGN ASSETS CONTROL, DEPARTMENT OF THE TREASURY NORTH KOREA SANCTIONS REGULATIONS Interpretations...

  12. 31 CFR 510.403 - Termination and acquisition of an interest in blocked property.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... 31 Money and Finance:Treasury 3 2014-07-01 2014-07-01 false Termination and acquisition of an interest in blocked property. 510.403 Section 510.403 Money and Finance: Treasury Regulations Relating to Money and Finance (Continued) OFFICE OF FOREIGN ASSETS CONTROL, DEPARTMENT OF THE TREASURY NORTH...

  13. 31 CFR 510.403 - Termination and acquisition of an interest in blocked property.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... 31 Money and Finance:Treasury 3 2013-07-01 2013-07-01 false Termination and acquisition of an interest in blocked property. 510.403 Section 510.403 Money and Finance: Treasury Regulations Relating to Money and Finance (Continued) OFFICE OF FOREIGN ASSETS CONTROL, DEPARTMENT OF THE TREASURY NORTH...

  14. 31 CFR 552.403 - Termination and acquisition of an interest in blocked property.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... 31 Money and Finance:Treasury 3 2013-07-01 2013-07-01 false Termination and acquisition of an interest in blocked property. 552.403 Section 552.403 Money and Finance: Treasury Regulations Relating to Money and Finance (Continued) OFFICE OF FOREIGN ASSETS CONTROL, DEPARTMENT OF THE TREASURY...

  15. 31 CFR 552.403 - Termination and acquisition of an interest in blocked property.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... 31 Money and Finance:Treasury 3 2014-07-01 2014-07-01 false Termination and acquisition of an interest in blocked property. 552.403 Section 552.403 Money and Finance: Treasury Regulations Relating to Money and Finance (Continued) OFFICE OF FOREIGN ASSETS CONTROL, DEPARTMENT OF THE TREASURY...

  16. 31 CFR 537.403 - Termination and acquisition of an interest in blocked property.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... 31 Money and Finance:Treasury 3 2011-07-01 2011-07-01 false Termination and acquisition of an interest in blocked property. 537.403 Section 537.403 Money and Finance: Treasury Regulations Relating to Money and Finance (Continued) OFFICE OF FOREIGN ASSETS CONTROL, DEPARTMENT OF THE TREASURY...

  17. 31 CFR 537.201 - Prohibited transactions involving certain blocked property.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... 31 Money and Finance:Treasury 3 2011-07-01 2011-07-01 false Prohibited transactions involving certain blocked property. 537.201 Section 537.201 Money and Finance: Treasury Regulations Relating to Money and Finance (Continued) OFFICE OF FOREIGN ASSETS CONTROL, DEPARTMENT OF THE TREASURY...

  18. 31 CFR 541.403 - Termination and acquisition of an interest in blocked property.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 31 Money and Finance: Treasury 3 2010-07-01 2010-07-01 false Termination and acquisition of an interest in blocked property. 541.403 Section 541.403 Money and Finance: Treasury Regulations Relating to Money and Finance (Continued) OFFICE OF FOREIGN ASSETS CONTROL, DEPARTMENT OF THE TREASURY...

  19. 31 CFR 562.403 - Termination and acquisition of an interest in blocked property.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... 31 Money and Finance:Treasury 3 2013-07-01 2013-07-01 false Termination and acquisition of an interest in blocked property. 562.403 Section 562.403 Money and Finance: Treasury Regulations Relating to Money and Finance (Continued) OFFICE OF FOREIGN ASSETS CONTROL, DEPARTMENT OF THE TREASURY IRANIAN HUMAN RIGHTS ABUSES SANCTIONS...

  20. 31 CFR 562.403 - Termination and acquisition of an interest in blocked property.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... 31 Money and Finance:Treasury 3 2012-07-01 2012-07-01 false Termination and acquisition of an interest in blocked property. 562.403 Section 562.403 Money and Finance: Treasury Regulations Relating to Money and Finance (Continued) OFFICE OF FOREIGN ASSETS CONTROL, DEPARTMENT OF THE TREASURY IRANIAN HUMAN RIGHTS ABUSES SANCTIONS...

  1. 31 CFR 548.403 - Termination and acquisition of an interest in blocked property.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 31 Money and Finance: Treasury 3 2010-07-01 2010-07-01 false Termination and acquisition of an interest in blocked property. 548.403 Section 548.403 Money and Finance: Treasury Regulations Relating to Money and Finance (Continued) OFFICE OF FOREIGN ASSETS CONTROL, DEPARTMENT OF THE TREASURY...

  2. 31 CFR 549.403 - Termination and acquisition of an interest in blocked property.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... 31 Money and Finance:Treasury 3 2014-07-01 2014-07-01 false Termination and acquisition of an interest in blocked property. 549.403 Section 549.403 Money and Finance: Treasury Regulations Relating to Money and Finance (Continued) OFFICE OF FOREIGN ASSETS CONTROL, DEPARTMENT OF THE TREASURY...

  3. 31 CFR 549.403 - Termination and acquisition of an interest in blocked property.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... 31 Money and Finance:Treasury 3 2013-07-01 2013-07-01 false Termination and acquisition of an interest in blocked property. 549.403 Section 549.403 Money and Finance: Treasury Regulations Relating to Money and Finance (Continued) OFFICE OF FOREIGN ASSETS CONTROL, DEPARTMENT OF THE TREASURY...

  4. 31 CFR 549.403 - Termination and acquisition of an interest in blocked property.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... 31 Money and Finance:Treasury 3 2012-07-01 2012-07-01 false Termination and acquisition of an interest in blocked property. 549.403 Section 549.403 Money and Finance: Treasury Regulations Relating to Money and Finance (Continued) OFFICE OF FOREIGN ASSETS CONTROL, DEPARTMENT OF THE TREASURY...

  5. 31 CFR 549.403 - Termination and acquisition of an interest in blocked property.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... 31 Money and Finance:Treasury 3 2011-07-01 2011-07-01 false Termination and acquisition of an interest in blocked property. 549.403 Section 549.403 Money and Finance: Treasury Regulations Relating to Money and Finance (Continued) OFFICE OF FOREIGN ASSETS CONTROL, DEPARTMENT OF THE TREASURY...

  6. 31 CFR 537.201 - Prohibited transactions involving certain blocked property.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 31 Money and Finance: Treasury 3 2010-07-01 2010-07-01 false Prohibited transactions involving certain blocked property. 537.201 Section 537.201 Money and Finance: Treasury Regulations Relating to Money and Finance (Continued) OFFICE OF FOREIGN ASSETS CONTROL, DEPARTMENT OF THE TREASURY BURMESE SANCTIONS REGULATIONS Prohibitions §...

  7. 31 CFR 537.403 - Termination and acquisition of an interest in blocked property.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 31 Money and Finance: Treasury 3 2010-07-01 2010-07-01 false Termination and acquisition of an interest in blocked property. 537.403 Section 537.403 Money and Finance: Treasury Regulations Relating to Money and Finance (Continued) OFFICE OF FOREIGN ASSETS CONTROL, DEPARTMENT OF THE TREASURY...

  8. 31 CFR 510.403 - Termination and acquisition of an interest in blocked property.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... 31 Money and Finance:Treasury 3 2011-07-01 2011-07-01 false Termination and acquisition of an interest in blocked property. 510.403 Section 510.403 Money and Finance: Treasury Regulations Relating to Money and Finance (Continued) OFFICE OF FOREIGN ASSETS CONTROL, DEPARTMENT OF THE TREASURY NORTH...

  9. 31 CFR 541.403 - Termination and acquisition of an interest in blocked property.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... 31 Money and Finance:Treasury 3 2014-07-01 2014-07-01 false Termination and acquisition of an interest in blocked property. 541.403 Section 541.403 Money and Finance: Treasury Regulations Relating to Money and Finance (Continued) OFFICE OF FOREIGN ASSETS CONTROL, DEPARTMENT OF THE TREASURY...

  10. 31 CFR 541.403 - Termination and acquisition of an interest in blocked property.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... 31 Money and Finance:Treasury 3 2011-07-01 2011-07-01 false Termination and acquisition of an interest in blocked property. 541.403 Section 541.403 Money and Finance: Treasury Regulations Relating to Money and Finance (Continued) OFFICE OF FOREIGN ASSETS CONTROL, DEPARTMENT OF THE TREASURY...

  11. 31 CFR 541.403 - Termination and acquisition of an interest in blocked property.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... 31 Money and Finance:Treasury 3 2012-07-01 2012-07-01 false Termination and acquisition of an interest in blocked property. 541.403 Section 541.403 Money and Finance: Treasury Regulations Relating to Money and Finance (Continued) OFFICE OF FOREIGN ASSETS CONTROL, DEPARTMENT OF THE TREASURY...

  12. 31 CFR 541.403 - Termination and acquisition of an interest in blocked property.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... 31 Money and Finance:Treasury 3 2013-07-01 2013-07-01 false Termination and acquisition of an interest in blocked property. 541.403 Section 541.403 Money and Finance: Treasury Regulations Relating to Money and Finance (Continued) OFFICE OF FOREIGN ASSETS CONTROL, DEPARTMENT OF THE TREASURY...

  13. 76 FR 47647 - Additional Designation of Person Whose Property and Interests in Property Are Blocked Pursuant to...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-08-05

    ... Persons Contributing to the Conflict in Somalia.'' AGENCY: Office of Foreign Assets Control, Treasury... Executive Order 13536 of April 12, 2010, ``Blocking Property of Certain Persons Contributing to the Conflict... to the Conflict in Somalia'' (the ``Order''), pursuant to, inter alia, the International...

  14. 18 CFR 367.4050 - Account 405, Amortization of other property.

    Code of Federal Regulations, 2012 CFR

    2012-04-01

    ... 18 Conservation of Power and Water Resources 1 2012-04-01 2012-04-01 false Account 405, Amortization of other property. 367.4050 Section 367.4050 Conservation of Power and Water Resources FEDERAL..., Amortization of other property. (a) When authorized by the Commission, this account must include charges...

  15. 18 CFR 367.4211 - Account 421.1, Gain on disposition of property.

    Code of Federal Regulations, 2012 CFR

    2012-04-01

    ... 18 Conservation of Power and Water Resources 1 2012-04-01 2012-04-01 false Account 421.1, Gain on disposition of property. 367.4211 Section 367.4211 Conservation of Power and Water Resources FEDERAL ENERGY..., Gain on disposition of property. This account must be credited with the gain on the sale,...

  16. 18 CFR 367.4212 - Account 421.2, Loss on disposition of property.

    Code of Federal Regulations, 2012 CFR

    2012-04-01

    ... 18 Conservation of Power and Water Resources 1 2012-04-01 2012-04-01 false Account 421.2, Loss on disposition of property. 367.4212 Section 367.4212 Conservation of Power and Water Resources FEDERAL ENERGY..., Loss on disposition of property. This account must be charged with the loss on the sale,...

  17. 18 CFR 367.2820 - Account 282, Accumulated deferred income taxes-Other property.

    Code of Federal Regulations, 2012 CFR

    2012-04-01

    ... 18 Conservation of Power and Water Resources 1 2012-04-01 2012-04-01 false Account 282, Accumulated deferred income taxes-Other property. 367.2820 Section 367.2820 Conservation of Power and Water... 282, Accumulated deferred income taxes—Other property. (a) This account must include the tax...

  18. 18 CFR 367.2820 - Account 282, Accumulated deferred income taxes-Other property.

    Code of Federal Regulations, 2013 CFR

    2013-04-01

    ... 18 Conservation of Power and Water Resources 1 2013-04-01 2013-04-01 false Account 282, Accumulated deferred income taxes-Other property. 367.2820 Section 367.2820 Conservation of Power and Water... 282, Accumulated deferred income taxes—Other property. (a) This account must include the tax...

  19. 18 CFR 367.4050 - Account 405, Amortization of other property.

    Code of Federal Regulations, 2013 CFR

    2013-04-01

    ... 18 Conservation of Power and Water Resources 1 2013-04-01 2013-04-01 false Account 405, Amortization of other property. 367.4050 Section 367.4050 Conservation of Power and Water Resources FEDERAL..., Amortization of other property. (a) When authorized by the Commission, this account must include charges...

  20. 18 CFR 367.4212 - Account 421.2, Loss on disposition of property.

    Code of Federal Regulations, 2013 CFR

    2013-04-01

    ... 18 Conservation of Power and Water Resources 1 2013-04-01 2013-04-01 false Account 421.2, Loss on disposition of property. 367.4212 Section 367.4212 Conservation of Power and Water Resources FEDERAL ENERGY..., Loss on disposition of property. This account must be charged with the loss on the sale,...

  1. 18 CFR 367.4211 - Account 421.1, Gain on disposition of property.

    Code of Federal Regulations, 2013 CFR

    2013-04-01

    ... 18 Conservation of Power and Water Resources 1 2013-04-01 2013-04-01 false Account 421.1, Gain on disposition of property. 367.4211 Section 367.4211 Conservation of Power and Water Resources FEDERAL ENERGY..., Gain on disposition of property. This account must be credited with the gain on the sale,...

  2. 18 CFR 367.2820 - Account 282, Accumulated deferred income taxes-Other property.

    Code of Federal Regulations, 2014 CFR

    2014-04-01

    ... 18 Conservation of Power and Water Resources 1 2014-04-01 2014-04-01 false Account 282, Accumulated deferred income taxes-Other property. 367.2820 Section 367.2820 Conservation of Power and Water... 282, Accumulated deferred income taxes—Other property. (a) This account must include the tax...

  3. 18 CFR 367.4212 - Account 421.2, Loss on disposition of property.

    Code of Federal Regulations, 2014 CFR

    2014-04-01

    ... 18 Conservation of Power and Water Resources 1 2014-04-01 2014-04-01 false Account 421.2, Loss on disposition of property. 367.4212 Section 367.4212 Conservation of Power and Water Resources FEDERAL ENERGY..., Loss on disposition of property. This account must be charged with the loss on the sale,...

  4. 18 CFR 367.4211 - Account 421.1, Gain on disposition of property.

    Code of Federal Regulations, 2014 CFR

    2014-04-01

    ... 18 Conservation of Power and Water Resources 1 2014-04-01 2014-04-01 false Account 421.1, Gain on disposition of property. 367.4211 Section 367.4211 Conservation of Power and Water Resources FEDERAL ENERGY..., Gain on disposition of property. This account must be credited with the gain on the sale,...

  5. 18 CFR 367.4050 - Account 405, Amortization of other property.

    Code of Federal Regulations, 2014 CFR

    2014-04-01

    ... 18 Conservation of Power and Water Resources 1 2014-04-01 2014-04-01 false Account 405, Amortization of other property. 367.4050 Section 367.4050 Conservation of Power and Water Resources FEDERAL..., Amortization of other property. (a) When authorized by the Commission, this account must include charges...

  6. 26 CFR 1.168(i)-7 - Accounting for MACRS property.

    Code of Federal Regulations, 2014 CFR

    2014-04-01

    ... 26 Internal Revenue 2 2014-04-01 2014-04-01 false Accounting for MACRS property. 1.168(i)-7 Section 1.168(i)-7 Internal Revenue INTERNAL REVENUE SERVICE, DEPARTMENT OF THE TREASURY (CONTINUED) INCOME TAX (CONTINUED) INCOME TAXES (CONTINUED) Itemized Deductions for Individuals and Corporations § 1.168(i)-7 Accounting for MACRS property. (a)...

  7. 18 CFR 367.4211 - Account 421.1, Gain on disposition of property.

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ... 18 Conservation of Power and Water Resources 1 2011-04-01 2011-04-01 false Account 421.1, Gain on disposition of property. 367.4211 Section 367.4211 Conservation of Power and Water Resources FEDERAL ENERGY..., Gain on disposition of property. This account must be credited with the gain on the sale,...

  8. 18 CFR 367.4050 - Account 405, Amortization of other property.

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ... 18 Conservation of Power and Water Resources 1 2011-04-01 2011-04-01 false Account 405, Amortization of other property. 367.4050 Section 367.4050 Conservation of Power and Water Resources FEDERAL..., Amortization of other property. (a) When authorized by the Commission, this account must include charges...

  9. 18 CFR 367.4050 - Account 405, Amortization of other property.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ... 18 Conservation of Power and Water Resources 1 2010-04-01 2010-04-01 false Account 405, Amortization of other property. 367.4050 Section 367.4050 Conservation of Power and Water Resources FEDERAL..., Amortization of other property. (a) When authorized by the Commission, this account must include charges...

  10. 18 CFR 367.4212 - Account 421.2, Loss on disposition of property.

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ... 18 Conservation of Power and Water Resources 1 2011-04-01 2011-04-01 false Account 421.2, Loss on disposition of property. 367.4212 Section 367.4212 Conservation of Power and Water Resources FEDERAL ENERGY..., Loss on disposition of property. This account must be charged with the loss on the sale,...

  11. Property Accounting for Local and State School Systems. State Educational Records and Reports Series--Handbook III.

    ERIC Educational Resources Information Center

    Reason, Paul L.; Tankard, George G., Jr.

    This handbook serves as a basic guide to property accounting for local and state school systems in the U.S. Information and guidelines are presented regarding--(1) classification of property accounts, (2) definitions of property accounts, (3) measures of school property, (4) supplies and equipment, (5) individual property records, and (6) summary…

  12. 3 CFR 13573 - Executive Order 13573 of May 18, 2011. Blocking Property of Senior Officials of the Government of...

    Code of Federal Regulations, 2012 CFR

    2012-01-01

    ... 3 The President 1 2012-01-01 2012-01-01 false Executive Order 13573 of May 18, 2011. Blocking Property of Senior Officials of the Government of Syria 13573 Order 13573 Presidential Documents Executive Orders Executive Order 13573 of May 18, 2011 EO 13573 Blocking Property of Senior Officials of...

  13. 3 CFR 13619 - Executive Order 13619 of July 11, 2012. Blocking Property of Persons Threatening the Peace...

    Code of Federal Regulations, 2013 CFR

    2013-01-01

    ... 3 The President 1 2013-01-01 2013-01-01 false Executive Order 13619 of July 11, 2012. Blocking Property of Persons Threatening the Peace, Security, or Stability of Burma 13619 Order 13619 Presidential Documents Executive Orders Executive Order 13619 of July 11, 2012 EO 13619 Blocking Property of...

  14. On linear structure and phase rotation invariant properties of block M-PSK modulation codes

    NASA Technical Reports Server (NTRS)

    Kasami, Tadao; Takata, Toyoo; Fujiwara, Toru; Lin, Shu

    1991-01-01

    Two important structural properties of block M(=2')-ary PSK modulation codes, linear structure and phase symmetry, are investigated. An M-ary modulation code is first represented as a code with symbols from the integer group S(MPSK) = (0,1,2,...M-1) under modulo-M addition. Then the linear structure of block MPSK modulation codes over S(M-PSK) with respect to modulo-M vector addition is defined, and conditions are derived under which a block MPSK modulation code is linear. Once the linear structure is developed, the phase symmetry of block M-PSK modulation codes is studied. In particular, a necessary and sufficient condition for a block MPSK modulation code that is linear as a binary code to be invariant under 2 h 180 deg/M phase rotation (for h = 1 to l) is derived. Finally, a list of short 8PSK and 16PSK modulation codes is given, together with their linear structure and the smallest phase rotation for which a code is invariant.

  15. Morphology And Local Mechanical Properties Of A Block Copolymer Cell Substrate

    NASA Astrophysics Data System (ADS)

    Wall, Craig; Yermolenko, Ivan; Krishnan, G. Rajesh; Sarkar, Debanjan; Alexander, John

    2014-03-01

    Atomic force microscopy (AFM) was applied for the characterization of morphology and mechanical properties of a block copolymer coating designed for biomaterials applications. The material is a block-copolymer with poly(ethylene glycol) as one block and a peptide as second block, which are connected through urethane bonds. The AFM images obtained in amplitude modulation mode revealed the morphology is characterized by micron-scale sheaf-like structures embedded in a more homogeneous and, presumably, amorphous matrix. The self-assembly of the peptide segments is responsible for the formation of the ordered sheaf structures and this phenomenon was common for different variations of the components. Maps of elastic modulus and work of adhesion of the block copolymer, which also differentiate the matrix and ordered regions, were obtained with Hybrid mode at different tip-force levels. The quantitative estimates show that elastic modulus varies in the MPa range and work of adhesion in the hundreds of mJ/m2 range. These data are compared with AFM-based nanoindentation that was performed at higher tip-force level. The results indicate that material surface is more complicated and they suggest in-depth morphology variations. A tentative model of the structural organization is proposed.

  16. Experimental Study on Properties of Methane Diffusion of Coal Block under Triaxial Compressive Stress

    PubMed Central

    Zhao, Hong-Bao

    2014-01-01

    Taking the standard size coal block samples defined by ISRM as research objects, both properties of methane diffusion of coal block under triaxial compressive stress and characteristic influences caused by methane pressure were systematically studied with thermo-fluid-solid coupling with triaxial servocontrolled seepage equipment of methane-containing coal. The result shows the methane diffusion property of coal block under triaxial compressive stress was shown in four-stage as follow, first is sharply reduce stage, second is hyperbolic reduce stage, third is close to a fixed value stage, fourth stage is 0. There is a special point making the reduced rate of characteristic curve of methane diffusion speed become sharply small; the influences of shape of methane diffusion speed characteristic curve caused by methane pressure are not obvious, which only is shown in numerical size of methane diffusion speed. Test time was extended required by appear of the special point makes the reduce rate of methane diffusion speed become sharply small. The fitting four-phase relation of methane diffusion of coal block under triaxial compressive stress was obtained, and the idea is proposed that influences of the fitting four-phase relation caused by methane pressure were only shown in value of fitting parameters. PMID:25531000

  17. Experimental study on properties of methane diffusion of coal block under triaxial compressive stress.

    PubMed

    Zhao, Hong-Bao

    2014-01-01

    Taking the standard size coal block samples defined by ISRM as research objects, both properties of methane diffusion of coal block under triaxial compressive stress and characteristic influences caused by methane pressure were systematically studied with thermo-fluid-solid coupling with triaxial servocontrolled seepage equipment of methane-containing coal. The result shows the methane diffusion property of coal block under triaxial compressive stress was shown in four-stage as follow, first is sharply reduce stage, second is hyperbolic reduce stage, third is close to a fixed value stage, fourth stage is 0. There is a special point making the reduced rate of characteristic curve of methane diffusion speed become sharply small; the influences of shape of methane diffusion speed characteristic curve caused by methane pressure are not obvious, which only is shown in numerical size of methane diffusion speed. Test time was extended required by appear of the special point makes the reduce rate of methane diffusion speed become sharply small. The fitting four-phase relation of methane diffusion of coal block under triaxial compressive stress was obtained, and the idea is proposed that influences of the fitting four-phase relation caused by methane pressure were only shown in value of fitting parameters. PMID:25531000

  18. Insulin/poly(ethylene glycol)-block-poly(L-lysine) Complexes: Physicochemical Properties and Protein Encapsulation.

    PubMed

    Pippa, Natassa; Kalinova, Radostina; Dimitrov, Ivaylo; Pispas, Stergios; Demetzos, Costas

    2015-06-01

    Insulin (INS) was encapsulated into complexes with poly(ethylene glycol)-block-poly(L-lysine) (PEG-b-PLys), which is a polypeptide-based block copolymer (a neutral-cationic block polyelectrolyte). The particular cationic-neutral block copolymer can complex INS molecules in aqueous media via electrostatic interactions. Light-scattering techniques are used to study the complexation process and structure of the hybrid nanoparticles in a series of buffers, as a function of protein concentration. The physicochemical and structural characteristics of the complexes depend on the ionic strength of the aqueous medium, while the concentration of PEG-b-PLys was constant through the series of solutions. As INS concentration increased the size distribution of the complexes decreased, especially at the highest ionic strength. The size/structure of complexes diluted in biological medium indicated that the copolymer imparts stealth properties and colloidal and biological stability to the complexes, features that could in turn affect the clearance properties in vivo. Therefore, these studies could be a rational roadmap for designing the optimum complexes/effective nanocarriers for proteins and peptides. PMID:25974620

  19. Block Copolymer Modified Epoxy Amine System for Reactive Rotational Molding: Structures, Properties and Processability

    NASA Astrophysics Data System (ADS)

    Lecocq, Eva; Nony, Fabien; Tcharkhtchi, Abbas; Gérard, Jean-François

    2011-05-01

    Poly(styrene-butadiene-methylmethacrylate) (SBM) and poly(methylmethacrylate-butyle-acrylate-methylmethacrylate) (MAM) triblock copolymers have been dissolved in liquid DGEBA epoxy resin which is subsequently polymerized by meta-xylene diamine (MXDA) or Jeffamine EDR-148. A chemorheology study of these formulations by plate-plate rheology and by thermal analysis has allowed to conclude that the addition of these copolymer blocks improve the reactive rotational moulding processability without affecting the processing time. Indeed, it prevents the pooling of the formulation at the bottom of the mould and a too rapid build up of resin viscosity of these thermosetting systems. The morphology of the cured blends examined by scanning electron microscopy (SEM) shows an increase of fracture surface area and thereby a potential increase of the toughness with the modification of epoxy system. Dynamic mechanical spectroscopy (DMA) and opalescence of final material show that the block PMMA, initially miscible, is likely to induce phase separation from the epoxy-amine matrix. Thereby, the poor compatibilisation between the toughener and the matrix has a detrimental effect on the tensile mechanical properties. The compatibilisation has to be increased to improve in synergy the processability and the final properties of these block copolymer modified formulations. First attempts could be by adapting the length and ratio of each block.

  20. Activation of spleen cells by ArtinM may account for its immunomodulatory properties.

    PubMed

    Silva, Thiago Aparecido da; Souza, Maria Aparecida de; Cecílio, Nerry Tatiana; Roque-Barreira, Maria Cristina

    2014-09-01

    ArtinM is a D-mannose-binding lectin extracted from Artocarpus heterophyllus that promotes interleukin-12 production by macrophages and dendritic cells. This property is considered responsible for T helper 1 immunity induced in vivo after ArtinM administration. In this study, we investigated the effect of native (jArtinM) and recombinant (rArtinM) forms of lectin on murine spleen cells and isolated T lymphocytes. We found that ArtinM binds to the surface of spleen cells. This interaction, which was blocked by D-mannose, induced cell activation, as manifested by increased mitochondrial activity, interleukin-2 production, and cell proliferation. We verified that a 30-times higher concentration of rArtinM was required to trigger optimal activation of spleen cells compared with that needed with jArtinM, although these proteins have identical sugar recognition properties and use the same signaling molecules to trigger cell activation. Because the distinction between native and recombinant is restricted to their tertiary structure (tetrameric and monomeric, respectively), we postulated that the multi-valence of jArtinM accounts for its superiority in promoting clustering of cell surface glycoreceptors and activation. The jArtinM and rArtinM activation effect exerted on spleen cells was reproduced on purified CD4(+) T cells. Our results suggest that ArtinM interaction with T cells leads to responses that may act in concert with the interleukin-12 produced by antigen-presenting cells to modulate immunity toward the T helper 1 axis. Further studies are necessary to dissect ArtinM/T-cell interactions to more fully understand the immunomodulation induced by carbohydrate recognition. PMID:24842046

  1. Magnetic properties of barium ferrite dispersed within polystyrene-butadiene-styrene block copolymers.

    PubMed

    Chipara, M; Skomski, R; Ali, N; Hui, D; Sellmyer, D J

    2009-06-01

    Magnetic properties of nanocomposite materials obtained by dispersing barium ferrite nanoparticles within polystyrene-butadiene-styrene block copolymer, in the temperature range, 300 to 500 K are reported. The temperature dependence of the magnetization at saturation, averaged uniaxial magnetocrystalline anisotropy, and coercive field of thick films are analyzed. A "matrix effect" was noticed within the glass transition range of the hard component (polystyrene) of the polymeric matrix. The reported modifications of the magnetic properties were assigned to the competition between the magnetic and mechanical reorientation of nanoparticles within the polymeric matrix. Such modifications were not observed in barium ferrite dispersed in cement. PMID:19504902

  2. Choice of optimal properties of molding compounds for extrusion of block supports and catalysts with the honeycomb structure

    SciTech Connect

    Prokof`ev, V.Yu.; Il`in, A.P.; Shirokov, Yu.G.; Yurchenko, E.N.

    1995-09-20

    Properties of compounds for molding of block supports and catalysts with the honeycomb structure have been studied. The examples studied include ultraporcelain, alumina, titanium dioxide, clays, and graphite. The molding properties of these compounds are characterized by such parameters as the relationship between deformations, relaxation time, power for destruction of the coagulation structure, and flow index. For molding of blocks with the honeycomb structure compounds with enhanced plastic properties and a stable coagulation structure are suggested.

  3. Accounting Issues: An Essay Series Part IV--Property, Plant, & Equipment

    ERIC Educational Resources Information Center

    Laux, Judy

    2007-01-01

    This fourth article in a series of theoretical essays intended to supplement the introductory financial accounting course is dedicated to the topic of property, plant, and equipment (PP&E), including both the accounting treatment and its related conceptual connections. The paper also addresses the measurement dilemmas, scandalous accounting…

  4. Chemoenzymatic synthesis and pH-responsive properties of amphoteric block polysaccharides.

    PubMed

    Nakauchida, Takuya; Takata, Yusei; Yamamoto, Kazuya; Kadokawa, Jun-Ichi

    2016-07-01

    Here, we investigated the chemoenzymatic synthesis of α(1→4)-linked amphoteric block polysaccharides. Amylouronic acid as an acidic block was first synthesized by 2,2,6,6-tetramethylpiperidine 1-oxyl-mediated oxidation of a water-soluble amylose (chemical reaction). A short maltooligosaccharide chain, serving as an initiating site for the following enzymatic polymerization, was then introduced at the nonreducing end of the product by thermostable α-glucan phosphorylase-catalyzed enzymatic oligomerization of α-d-glucose 1-phosphate. Finally, thermostable α-glucan phosphorylase-catalyzed enzymatic polymerization of α-d-glucosamine 1-phosphate from the produced primer provided a basic block at the nonreducing end, leading to the desired amphoteric block polysaccharides. The structures of the products at each step were determined by (1)H NMR analysis. Furthermore, amphoteric products exhibited specific inherent isoelectric points (pIs). When the pH-responsive properties in aqueous solutions were evaluated using a divalent acid and base, similar hierarchical assembling/disassembling processes were observed by shifting the pH values from the pI to both the acidic and basic pH. PMID:27278259

  5. Amphiphilic Spider Silk-Like Block Copolymers with Tunable Physical Properties and Morphology for Biomedical Applications

    NASA Astrophysics Data System (ADS)

    Huang, Wenwen; Krishnaji, Sreevidhya; Kaplan, David; Cebe, Peggy

    2013-03-01

    Silk-based materials are important candidates for biomedical applications because of their excellent biocompatibility and biodegradability. To generate silk amphiphilic biopolymers with potential use in guided tissue repair and drug delivery, a novel family of spider silk-like block copolymers was synthesized by recombinant DNA technology. Block copolymer thermal properties, structural conformations, protein-water interactions, and self-assembly morphologies were studied with respect to well controlled protein amino acid sequences. A theoretical model was used to predict the heat capacity of the protein and protein-water complex. Using thermal analysis, two glass transitions were observed: Tg1 is related to conformational changes caused by bound water removal, while Tg2 (>Tg1) is the glass transition of dry protein. Real-time infrared spectroscopy and X-ray diffraction confirmed that different secondary structural changes occur during the two Tg relaxations. Using scanning electron microscopy, fibrillar networks and hollow vesicles are observed, depending on protein block copolymer sequence. This study provides a deeper understanding of the relationship between protein physical properties and amino acid sequence, with implications for design of other protein-based materials. Support was provided from the NSF CBET-0828028 and the MRI Program under DMR-0520655 for thermal analysis instrumentation.

  6. 77 FR 12837 - Notice of Release of the Exposure Draft, Accounting for Impairment of General Property, Plant...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-03-02

    ... From the Federal Register Online via the Government Publishing Office FEDERAL ACCOUNTING STANDARDS ADVISORY BOARD Notice of Release of the Exposure Draft, Accounting for Impairment of General Property, Plant, and Equipment Remaining in Use AGENCY: Federal Accounting Standards Advisory Board....

  7. Structure-property relationships in multilayered polymeric system and olefinic block copolymers

    NASA Astrophysics Data System (ADS)

    Khariwala, Devang

    diffusion. Subsequently, the oxygen permeability was directly related to the composition profile in each layer and changed as the interdiffusion proceeded. This methodology enabled the extraction of the mutual diffusion co-efficient, D, for the Nylon-6/EVOH system. The effect of comonomer content in EVOH on the mutual diffusion coefficient was also studied by comparing the kinetics of interdiffusion of Nylon-6 with two EVOHs containing 24 and 44 mole % ethylene. Chapter 3. Exciting new developments in polyolefin synthesis give rise to olefinic block copolymers with properties typical of thermoplastic elastomers. The block copolymers synthesized by chain shuttling technology consist of crystallizable ethylene-octene blocks with low comonomer content and high melting temperature (hard blocks), alternating with amorphous ethylene-octene blocks with high comonomer content and low glass transition temperature (soft blocks). This study describes the material science of these unique polymers as characterized by thermal analysis, X-ray diffraction, microscopy, and tensile deformation. The crystallizable blocks are long enough to form well-organized lamellar crystals with the orthorhombic unit cell and high melting temperature. The lamellae are organized into space-filling spherulites in all compositions even in copolymers with only 18 wt% hard block. The morphology is consistent with crystallization from a miscible melt. Crystallization of the hard blocks forces segregation of the noncrystallizable soft blocks into the interlamellar regions. Good separation of hard and soft blocks in the solid state is confirmed by distinct and separate beta- and alpha-relaxations in all the block copolymers. Compared to statistical ethylene-octene copolymers, the blocky architecture imparts a substantially higher crystallization temperature, a higher melting temperature and a better organized crystalline morphology, while maintaining a lower glass transition temperature. The differences between

  8. Quantifying Hydraulic Properties and Connections Between Structural Blocks at Pahute Mesa, Nevada National Security Site

    NASA Astrophysics Data System (ADS)

    Jackson, T. R.; Halford, K. J.; Garcia, C. A.

    2014-12-01

    Underground testing of high-yield nuclear devices on eastern Pahute Mesa in the Nevada National Security Site during the period from 1965-92 has introduced radionuclides into the groundwater system. Groundwater flow is complex because Pahute Mesa is underlain by a thick sequence of alternating lava flows and tuffs which have been faulted into distinct structural blocks. Hydraulic properties of volcanic-rock aquifers, confining units, and fault structures have been quantified across a 50 mi² area where radionuclide transport occurs. This large area has been investigated by pumping 60 million gallons of groundwater during 16 large-scale aquifer tests. Water-level changes have been detected in observation wells more than 3 mi from pumped wells and were interpreted simultaneously with multiple groundwater flow models—one model for each well site. Hydraulic properties were distributed with a single hydrogeologic framework model that was sampled by each groundwater-flow model. Hydraulic properties were estimated across structural blocks with offsets of 1,500 ft where pumping signals were measured across fault structures. The resulting large-scale estimates of hydraulic conductivity distributions and regional transmissivity map will improve predictions of radionuclide transport.

  9. 76 FR 2193 - Designation Pursuant to Executive Order 13396 of February 7, 2006, “Blocking Property of Certain...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-01-12

    ..., ``Blocking Property of Certain Persons Contributing to the Conflict in C te d'Ivoire'' AGENCY: Office of... Persons Contributing to the Conflict in C te d'Ivoire'' (the ``Order''). DATES: The designation by...

  10. The effect of parent metal properties on the performance of Lattice Block Material{trademark}

    SciTech Connect

    Renauld, M.L.; Giamei, A.F.; Thompson, M.S.; Priluck, J.

    1998-12-31

    Lattice Block Material{trademark}, or LBM{trademark} is a unique lightweight structure consisting of repeated cells with an internal node connected to, in the most common configuration, 14 ligaments. In its metallic version, this product is available in a variety of castable metals including aluminum alloys, copper alloys, nickel alloys and steels. The relationship between LBM structural performance (strength and stiffness) and parent metal properties is investigated using compression tests in three primary orientations and 3-pt. bend tests. Analytical assessment of the LBM via finite element analysis shows reasonable agreement with experimental findings and provides predictions for LBM capabilities with different materials, unit cell sizes and ligament geometries.

  11. Effect of Orientation on Tensile Properties of Inconel 718 Block Fabricated with Electron Beam Freeform Fabrication (EBF3)

    NASA Technical Reports Server (NTRS)

    Bird, R. Keith; Atherton, Todd S.

    2010-01-01

    Electron beam freeform fabrication (EBF3) direct metal deposition processing was used to fabricate an Inconel 718 bulk block deposit. Room temperature tensile properties were measured as a function of orientation and location within the block build. This study is a follow-on activity to previous work on Inconel 718 EBF3 deposits that were too narrow to allow properties to be measured in more than one orientation

  12. 31 CFR 575.503 - Payments and transfers to blocked accounts in U.S. financial institutions.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... the Government of Iraq is hereby authorized, including incidental foreign exchange transactions... transfer represents, directly or indirectly, a transfer of any interest of the Government of Iraq to any... account held in a name other than that of the Government of Iraq where such government is the...

  13. The neuromuscular blocking properties of a series of bis-quaternary tropeïnes

    PubMed Central

    Haining, C. G.; Johnston, R. G.; Smith, J. M.

    1960-01-01

    Linkage of two tropine esters through their nitrogen atoms by the chain -[CH2]m-O-CO-[CH2]n-CO-O-[CH2]m-, in which m was 2 or 3 and n varied from 0 to 6, gave compounds which produced neuromuscular block without depolarization. Reversibility be neostigmine was confirmed for a few compounds. Potency was found to depend upon the tropine ester employed and upon the values of n and m. Short duration and hypotensive properties were favoured by the higher values of n. The duration of action of the compound based on the phenylacetic acid ester of tropine, in which n=4 and m=2, varied considerably in different species. Epimerization, in which the relative positions of the methyl group and the linking chain on the quaternary tropane nitrogen atom were reversed, did not produce subtances having more favourable properties than those possessed by the unepimerized compounds. PMID:14398886

  14. Polymer electrolyte membranes from fluorinated polyisoprene-block-sulfonated polystyrene: Membrane structure and transport properties

    SciTech Connect

    Sodeye, Akinbode; Huang, Tianzi; Gido, Samuel; Mays, Jimmy

    2011-01-01

    With a view to optimizing morphology and ultimately properties, membranes have been cast from relatively inexpensive block copolymer ionomers of fluorinated polyisoprene-block-sulfonated polystyrene (FISS) with various sulfonation levels, in both the acid form and the cesium neutralized form. The morphology of these membranes was characterized by transmission electron microscopy and ultra-small angle X-ray scattering, as well as water uptake, proton conductivity and methanol permeability within the temperature range from 20 to 60 C. Random phase separated morphologies were obtained for all samples except the cesium sample with 50 mol% sulfonation. The transport properties increased with increasing degree of sulfonation and temperature for all samples. The acid form samples absorbed more water than the cesium samples with a maximum swelling of 595% recorded at 60 C for the acid sample having 50 mol% sulfonation. Methanol permeability for the latter sample was more than an order of magnitude less than for Nafion 112 but so was the proton conductivity within the plane of the membrane at 20 C. Across the plane of the membrane this sample had half the conductivity of Nafion 112 at 60 C.

  15. Morphology and Dynamic Mechanical Properties of Styrene Containing Tri-Block Copolymers for Electromagnetic Wave Interaction Applications

    NASA Astrophysics Data System (ADS)

    Peddini, S.; Mauritz, K.; Nikles, D.; Weston, J.

    2008-03-01

    Styrene containing triblock copolymers, namely poly(styrene-ethylene/butylene-styrene) (SEBS) and poly(styrene-butadiene-styrene)] (SBS), were selectively modified by attaching polar groups to facilitate the in-growth of an inorganic component. In case of SEBS, the styrene block was sulfonated, and in SBS, the butadiene block was hydroxylated. The extent of modification was determined by analytical and spectroscopic methods. This presentation shows the morphology and dynamical mechanical properties of both block copolymers before and after modification. Nanocomposites of these block copolymers were prepared by inclusion of magnetic metal oxides via an in-situ precipitation and self assembly processes and their morphology and dynamical mechanical properties were studied. Magnetic properties of these polymers filled with iron oxide nanoparticles were measured using an alternating gradient magnetometer (AGM) at room temperature to observe the magnetic hysteresis.

  16. 77 FR 10808 - Designation of One Entity Pursuant to Executive Order 13572 of April 29, 2011, “Blocking Property...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-02-23

    ..., 2011, ``Blocking Property of Certain Persons With Respect to Human Rights Abuses in Syria'' AGENCY... of Certain Persons with Respect to Human Rights Abuses in Syria.'' DATES: The designation by the... Property of Certain Persons with Respect to Human Rights Abuses in Syria,'' (the ``Order'') pursuant...

  17. Property transmission: an explanatory account of the role of similarity information in causal inference.

    PubMed

    White, Peter A

    2009-09-01

    Many kinds of common and easily observed causal relations exhibit property transmission, which is a tendency for the causal object to impose its own properties on the effect object. It is proposed that property transmission becomes a general and readily available hypothesis used to make interpretations and judgments about causal questions under conditions of uncertainty, in which property transmission functions as a heuristic. The property transmission hypothesis explains why and when similarity information is used in causal inference. It can account for magical contagion beliefs, some cases of illusory correlation, the correspondence bias, overestimation of cross-situational consistency in behavior, nonregressive tendencies in prediction, the belief that acts of will are causes of behavior, and a range of other phenomena. People learn that property transmission is often moderated by other factors, but under conditions of uncertainty in which the operation of relevant other factors is unknown, it tends to exhibit a pervasive influence on thinking about causality. PMID:19702382

  18. 18 CFR 367.1110 - Account 111, Accumulated provision for amortization of service company property.

    Code of Federal Regulations, 2012 CFR

    2012-04-01

    ... 18 Conservation of Power and Water Resources 1 2012-04-01 2012-04-01 false Account 111, Accumulated provision for amortization of service company property. 367.1110 Section 367.1110 Conservation of Power and Water Resources FEDERAL ENERGY REGULATORY COMMISSION, DEPARTMENT OF ENERGY REGULATIONS...

  19. 18 CFR 367.4114 - Account 411.4, Investment tax credit adjustments, service company property.

    Code of Federal Regulations, 2012 CFR

    2012-04-01

    ... 18 Conservation of Power and Water Resources 1 2012-04-01 2012-04-01 false Account 411.4, Investment tax credit adjustments, service company property. 367.4114 Section 367.4114 Conservation of Power and Water Resources FEDERAL ENERGY REGULATORY COMMISSION, DEPARTMENT OF ENERGY REGULATIONS UNDER...

  20. 18 CFR 367.1080 - Account 108, Accumulated provision for depreciation of service company property.

    Code of Federal Regulations, 2012 CFR

    2012-04-01

    ... 18 Conservation of Power and Water Resources 1 2012-04-01 2012-04-01 false Account 108, Accumulated provision for depreciation of service company property. 367.1080 Section 367.1080 Conservation of Power and Water Resources FEDERAL ENERGY REGULATORY COMMISSION, DEPARTMENT OF ENERGY REGULATIONS...

  1. 18 CFR 367.4114 - Account 411.4, Investment tax credit adjustments, service company property.

    Code of Federal Regulations, 2013 CFR

    2013-04-01

    ... 18 Conservation of Power and Water Resources 1 2013-04-01 2013-04-01 false Account 411.4, Investment tax credit adjustments, service company property. 367.4114 Section 367.4114 Conservation of Power and Water Resources FEDERAL ENERGY REGULATORY COMMISSION, DEPARTMENT OF ENERGY REGULATIONS UNDER...

  2. 18 CFR 367.1110 - Account 111, Accumulated provision for amortization of service company property.

    Code of Federal Regulations, 2013 CFR

    2013-04-01

    ... 18 Conservation of Power and Water Resources 1 2013-04-01 2013-04-01 false Account 111, Accumulated provision for amortization of service company property. 367.1110 Section 367.1110 Conservation of Power and Water Resources FEDERAL ENERGY REGULATORY COMMISSION, DEPARTMENT OF ENERGY REGULATIONS...

  3. 18 CFR 367.1080 - Account 108, Accumulated provision for depreciation of service company property.

    Code of Federal Regulations, 2013 CFR

    2013-04-01

    ... 18 Conservation of Power and Water Resources 1 2013-04-01 2013-04-01 false Account 108, Accumulated provision for depreciation of service company property. 367.1080 Section 367.1080 Conservation of Power and Water Resources FEDERAL ENERGY REGULATORY COMMISSION, DEPARTMENT OF ENERGY REGULATIONS...

  4. 18 CFR 367.4114 - Account 411.4, Investment tax credit adjustments, service company property.

    Code of Federal Regulations, 2014 CFR

    2014-04-01

    ... 18 Conservation of Power and Water Resources 1 2014-04-01 2014-04-01 false Account 411.4, Investment tax credit adjustments, service company property. 367.4114 Section 367.4114 Conservation of Power and Water Resources FEDERAL ENERGY REGULATORY COMMISSION, DEPARTMENT OF ENERGY REGULATIONS UNDER...

  5. 18 CFR 367.1080 - Account 108, Accumulated provision for depreciation of service company property.

    Code of Federal Regulations, 2014 CFR

    2014-04-01

    ... 18 Conservation of Power and Water Resources 1 2014-04-01 2014-04-01 false Account 108, Accumulated provision for depreciation of service company property. 367.1080 Section 367.1080 Conservation of Power and Water Resources FEDERAL ENERGY REGULATORY COMMISSION, DEPARTMENT OF ENERGY REGULATIONS...

  6. 18 CFR 367.1110 - Account 111, Accumulated provision for amortization of service company property.

    Code of Federal Regulations, 2014 CFR

    2014-04-01

    ... 18 Conservation of Power and Water Resources 1 2014-04-01 2014-04-01 false Account 111, Accumulated provision for amortization of service company property. 367.1110 Section 367.1110 Conservation of Power and Water Resources FEDERAL ENERGY REGULATORY COMMISSION, DEPARTMENT OF ENERGY REGULATIONS...

  7. 48 CFR 1852.245-71 - Installation-accountable Government property.

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ... 48 Federal Acquisition Regulations System 6 2013-10-01 2013-10-01 false Installation-accountable Government property. 1852.245-71 Section 1852.245-71 Federal Acquisition Regulations System NATIONAL AERONAUTICS AND SPACE ADMINISTRATION CLAUSES AND FORMS SOLICITATION PROVISIONS AND CONTRACT CLAUSES Texts of Provisions and Clauses...

  8. Property Accounting for State and Local School Systems. Bulletin, 1959, No. 22

    ERIC Educational Resources Information Center

    Reason, Paul L., Comp.; Tankard, George G., Jr., Comp.

    1959-01-01

    This handbook is a guide to property accounting for local and State school systems. It classifies and defines the specific items of information about land, buildings, and equipment that need to be comparable among local school systems and among States, and presents additional terminology essential to their effective use. As such, it is concerned…

  9. 18 CFR 367.1080 - Account 108, Accumulated provision for depreciation of service company property.

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ... 18 Conservation of Power and Water Resources 1 2011-04-01 2011-04-01 false Account 108, Accumulated provision for depreciation of service company property. 367.1080 Section 367.1080 Conservation of Power and Water Resources FEDERAL ENERGY REGULATORY COMMISSION, DEPARTMENT OF ENERGY REGULATIONS...

  10. 18 CFR 367.1110 - Account 111, Accumulated provision for amortization of service company property.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ... 18 Conservation of Power and Water Resources 1 2010-04-01 2010-04-01 false Account 111, Accumulated provision for amortization of service company property. 367.1110 Section 367.1110 Conservation of Power and Water Resources FEDERAL ENERGY REGULATORY COMMISSION, DEPARTMENT OF ENERGY REGULATIONS...

  11. 18 CFR 367.2820 - Account 282, Accumulated deferred income taxes-Other property.

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ... 18 Conservation of Power and Water Resources 1 2011-04-01 2011-04-01 false Account 282, Accumulated deferred income taxes-Other property. 367.2820 Section 367.2820 Conservation of Power and Water Resources FEDERAL ENERGY REGULATORY COMMISSION, DEPARTMENT OF ENERGY REGULATIONS UNDER THE PUBLIC UTILITY HOLDING COMPANY ACT OF 2005, FEDERAL POWER...

  12. 18 CFR 367.4211 - Account 421.1, Gain on disposition of property.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ... 18 Conservation of Power and Water Resources 1 2010-04-01 2010-04-01 false Account 421.1, Gain on disposition of property. 367.4211 Section 367.4211 Conservation of Power and Water Resources FEDERAL ENERGY REGULATORY COMMISSION, DEPARTMENT OF ENERGY REGULATIONS UNDER THE PUBLIC UTILITY HOLDING COMPANY ACT OF 2005, FEDERAL POWER ACT AND...

  13. 18 CFR 367.4212 - Account 421.2, Loss on disposition of property.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ... 18 Conservation of Power and Water Resources 1 2010-04-01 2010-04-01 false Account 421.2, Loss on disposition of property. 367.4212 Section 367.4212 Conservation of Power and Water Resources FEDERAL ENERGY REGULATORY COMMISSION, DEPARTMENT OF ENERGY REGULATIONS UNDER THE PUBLIC UTILITY HOLDING COMPANY ACT OF 2005, FEDERAL POWER ACT AND...

  14. 18 CFR 367.1080 - Account 108, Accumulated provision for depreciation of service company property.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ... 18 Conservation of Power and Water Resources 1 2010-04-01 2010-04-01 false Account 108, Accumulated provision for depreciation of service company property. 367.1080 Section 367.1080 Conservation of Power and Water Resources FEDERAL ENERGY REGULATORY COMMISSION, DEPARTMENT OF ENERGY REGULATIONS...

  15. 18 CFR 367.1110 - Account 111, Accumulated provision for amortization of service company property.

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ... 18 Conservation of Power and Water Resources 1 2011-04-01 2011-04-01 false Account 111, Accumulated provision for amortization of service company property. 367.1110 Section 367.1110 Conservation of Power and Water Resources FEDERAL ENERGY REGULATORY COMMISSION, DEPARTMENT OF ENERGY REGULATIONS...

  16. 18 CFR 367.4114 - Account 411.4, Investment tax credit adjustments, service company property.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ... 18 Conservation of Power and Water Resources 1 2010-04-01 2010-04-01 false Account 411.4, Investment tax credit adjustments, service company property. 367.4114 Section 367.4114 Conservation of Power and Water Resources FEDERAL ENERGY REGULATORY COMMISSION, DEPARTMENT OF ENERGY REGULATIONS UNDER THE PUBLIC UTILITY HOLDING COMPANY ACT OF...

  17. 18 CFR 367.2820 - Account 282, Accumulated deferred income taxes-Other property.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ... 18 Conservation of Power and Water Resources 1 2010-04-01 2010-04-01 false Account 282, Accumulated deferred income taxes-Other property. 367.2820 Section 367.2820 Conservation of Power and Water Resources FEDERAL ENERGY REGULATORY COMMISSION, DEPARTMENT OF ENERGY REGULATIONS UNDER THE PUBLIC UTILITY HOLDING COMPANY ACT OF 2005, FEDERAL POWER...

  18. 18 CFR 367.4114 - Account 411.4, Investment tax credit adjustments, service company property.

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ... 18 Conservation of Power and Water Resources 1 2011-04-01 2011-04-01 false Account 411.4, Investment tax credit adjustments, service company property. 367.4114 Section 367.4114 Conservation of Power and Water Resources FEDERAL ENERGY REGULATORY COMMISSION, DEPARTMENT OF ENERGY REGULATIONS UNDER...

  19. 48 CFR 1852.245-77 - List of installation-accountable property and services.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... 48 Federal Acquisition Regulations System 6 2010-10-01 2010-10-01 true List of installation... CLAUSES Texts of Provisions and Clauses 1852.245-77 List of installation-accountable property and services. As prescribed in 1845.106-70(h), insert the following clause: List of...

  20. 24 CFR 1003.511 - Use of escrow accounts for rehabilitation of privately owned residential property.

    Code of Federal Regulations, 2013 CFR

    2013-04-01

    ... 24 Housing and Urban Development 4 2013-04-01 2013-04-01 false Use of escrow accounts for rehabilitation of privately owned residential property. 1003.511 Section 1003.511 Housing and Urban Development REGULATIONS RELATING TO HOUSING AND URBAN DEVELOPMENT (CONTINUED) OFFICE OF ASSISTANT SECRETARY FOR PUBLIC AND INDIAN HOUSING, DEPARTMENT...

  1. 47 CFR 36.171 - Property held for future telecommunications use-Account 2002; Telecommunications plant under...

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... Telecommunications Property Telecommunications Plant-Other § 36.171 Property held for future telecommunications use... 47 Telecommunication 2 2010-10-01 2010-10-01 false Property held for future telecommunications use-Account 2002; Telecommunications plant under construction-Account 2003; and Telecommunications...

  2. Replication of engine block cylinder bridge microstructure and mechanical properties with lab scale 319 Al alloy billet castings

    SciTech Connect

    Lombardi, A.; D'Elia, F.; Ravindran, C.; MacKay, R.

    2014-01-15

    In recent years, aluminum alloy gasoline engine blocks have in large part successfully replaced nodular cast iron engine blocks, resulting in improved vehicle fuel efficiency. However, because of the inadequate wear resistance properties of hypoeutectic Al–Si alloys, gray iron cylinder liners are required. These liners cause the development of large tensile residual stress along the cylinder bores and necessitate the maximization of mechanical properties in this region to prevent premature engine failure. The aim of this study was to replicate the engine cylinder bridge microstructure and mechanical properties following TSR treatment (which removes the sand binder to enable easy casting retrieval) using lab scale billet castings of the same alloy composition with varying cooling rates. Comparisons in microstructure between the engine block and the billet castings were carried out using optical and scanning electron microscopy, while mechanical properties were assessed using tensile testing. The results suggest that the microstructure at the top and middle of the engine block cylinder bridge was successfully replicated by the billet castings. However, the microstructure at the bottom of the cylinder was not completely replicated due to variations in secondary phase morphology and distribution. The successful replication of engine block microstructure will enable the future optimization of heat treatment parameters. - Highlights: • A method to replicate engine block microstructure was developed. • Billet castings will allow cost effective optimization of heat treatment process. • The replication of microstructure in the cylinder region was mostly successful. • Porosity was more clustered in the billet castings compared to the engine block. • Mechanical properties were lower in billet castings due to porosity and inclusions.

  3. Structure-property relationships in novel polymers and block copolymers from ring-opening metathesis polymerization

    NASA Astrophysics Data System (ADS)

    Bishop, John Paul

    2011-12-01

    The desire to tune macroscopic properties by controlling the underlying microscopic structure is a driving force in many different areas of scientific research, including polymer science. In living ring-opening metathesis polymerization (ROMP), the subject of this dissertation, there are a variety of different ways to alter the microscopic structure through synthesis. This is in part due to the presence of double bonds in the polymeric backbone, which can influence properties both through their isomeric structures (cis vs. trans) and through their removal by catalytic hydrogenation. Here, we demonstrate the ability to tune a variety of microstructural parameters of our ROMP polymers through synthesis, and investigate the resulting effects on macroscopic properties. ROMP and subsequent hydrogenation provide access to crystalline, glassy, and rubbery polymers, representing essentially the entire spectrum of polymer properties. These include hydrogenated polynorbornene (hPN), a highly crystalline polymer with Tm° = 156°C; hydrogenated poly(5-hexylnorbornene) (hPHN), a rubbery amorphous polymer with Tg = -22°C; and hydrogenated polymethyltetracyclododecene (hPMTD), a glassy polymer with Tg = 163°C. The microstructure of block copolymers of hPN, hPHN, and hPMTD can be controlled by varying block sequence, block lengths, and number of blocks. We used this control to design and synthesize thermoplastic elastomers (TPEs) containing both crystalline and glassy hard segments, with the aim of capturing the mechanical properties of conventional all-amorphous triblock TPEs, while forming the solid-state structure by crystallization from a single-phase melt. To accomplish this, we synthesized symmetric pentablock copolymers with the architecture crystalline-glassy-rubbery-glassy-crystalline. With this pentablock architecture and appropriate selection of block lengths, crystallization from a single-phase melt causes a layer rich in the glassy block to form around the

  4. Vertically Aligned Nanoplate Particles Directed by Block Copolymer Domains for Anisotropic Properties

    NASA Astrophysics Data System (ADS)

    Krook, Nadia; Meth, Jeffrey; Murray, Christopher; Riggleman, Robert; Composto, Russell

    During common processing methods, anisotropic fillers in polymer nanocomposites align in the direction of flow, parallel to the surfaces, thus enhancing properties in the plane of the substrate. This research aims to create thin film nanocomposites with perpendicularly aligned anisotropic particles to improve properties in the out-of-plane direction. The demonstrated work explores vertical orientation of rare-earth fluoride nanoplates in lamellar-forming poly(styrene- b-methyl methacrylate) to establish a platform that controls the alignment of any planar particle. Currently, gadolinium fluoride (GdF3) rhombus nanoplates with the longest and shortest diagonal dimensions of ~30 nm and ~25 nm, respectively, have been specially synthesized with the potential to intercalate the block copolymer (BCP) domains. By employing a ternary brush blend layer to neutralize silicon substrates to both BCP domains, vertical lamellae orientation has been enabled with an optimum film thickness of ~110 nm. The GdF3 surfaces are chemically modified to drive the plates to a specific BCP domain. After surface modification, the dispersion of GdF3 in homopolymer will first be shown followed by morphology results from integrating GdF3 into the BCP using scanning and transmission electron microscopy.

  5. Gabra5-gene haplotype block associated with behavioral properties of the full agonist benzodiazepine chlordiazepoxide.

    PubMed

    Clément, Y; Prut, L; Saurini, F; Mineur, Y S; Le Guisquet, A-M; Védrine, S; Andres, C; Vodjdani, G; Belzung, C

    2012-08-01

    The gabra5 gene is associated with pharmacological properties (myorelaxant, amnesic, anxiolytic) of benzodiazepines. It is tightly located (0.5 cM) close to the pink-eyed dilution (p) locus which encodes for fur color on mouse chromosome 7. We tested the putative role of the gabra5 gene in pharmacological properties of the full non specific agonist chlordiazepoxide (CDP), using behavioral and molecular approaches in mutated p/p mice and wild type F2 from crosses between two multiple markers inbred strain ABP/Le and C57BL/6By strain. From our results, using rotarod, light-dark box, elevated maze and radial arm maze tests, we demonstrate that p/p mice are more sensitive than WT to the sensory motor, anxiolytic and amnesic effect of CDP. This is associated with the presence of a haplotypic block on the murine chromosome 7 and with an up regulation of gabra5 mRNAs in hippocampi of p/p F2 mice. PMID:22677273

  6. Differences in Membrane Properties in Simulated Cases of Demyelinating Neuropathies: Internodal Focal Demyelinations without Conduction Block

    PubMed Central

    Daskalova, M. S.; Alexandrov, A. S.

    2006-01-01

    The membrane properties (intracellular, extracellular, electrotonic potentials, strength-duration time constants, rheobasic currents and recovery cycles), which can now be measured in healthy subjects and patients with demyelinating neuropathies, are investigated in simulated cases of focal reduction (70%) of the myelin sheath in one, two and three successive internodal segments along the length of human motor fibres. The internodally focally demyelinated cases (termed as IFD1, IFD2 and IFD3, respectively) are simulated using our previous double cable model of the fibres. The results show that the intracellular potentials are with reduced amplitude and slowed conduction velocity in the vicinity of demyelinated segments, however the segmental conduction block is not achieved. The radial decline of the extracellular potential amplitudes slightly increases with the increase of the radial distance and demyelination. In contrast, the electrotonic potentials, strength-duration time constants and rheobases are normal. In the recovery cycles, the refractoriness, supernormality and less late subnormality are close to the normal, showing that the pathology is relatively minor. The obtained abnormalities in the potentials and excitability properties provide new information about the pathophysiology of the demyelinated human motor axons and can be observed in vivo in patients with acquired demyelinating neuropathies. PMID:19669452

  7. Improvements in Mechanical Properties of 319 Al Alloy Engine Blocks Through Cost-Effective Solution Heat Treatment

    NASA Astrophysics Data System (ADS)

    Lombardi, A.; Ravindran, C.; MacKay, R.

    2014-08-01

    The use of Al engine blocks has increased significantly to improve vehicle fuel efficiency. However, the gray cast iron cylinder liners cause the development of large tensile residual stress along the cylinder bores which necessitates the optimization of mechanical properties in this region to prevent premature engine failure. This study compared the microstructure of T4-treated Al billet castings of varying cooling rate to that of the cylinder region of T4-treated (current production schedule) Al engine blocks. The aim of this study was to develop a cost-effective small scale heat treatment optimization method for engine block production. Comparisons in microstructure between the engine block and the billet castings were carried out using optical and scanning electron microscopy. The results suggest that the microstructure and hardness at the top, middle, and bottom of the cylinder were similar to those of each representative billet casting, indicating that heat treatment resulted in successful replication of the engine block locations. In addition, tensile testing revealed that the YS and UTS increased slightly following T4 treatment for all billet castings, which was also observed at the middle of the engine block cylinder bridge. As such, this method can be an effective forerunner for future heat treatment optimization in Al engine block production.

  8. 47 CFR 36.171 - Property held for future telecommunications use-Account 2002; Telecommunications plant under...

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ... 47 Telecommunication 2 2011-10-01 2011-10-01 false Property held for future telecommunications use-Account 2002; Telecommunications plant under construction-Account 2003; and Telecommunications plant adjustment-Account 2005. 36.171 Section 36.171 Telecommunication FEDERAL COMMUNICATIONS COMMISSION (CONTINUED) COMMON CARRIER...

  9. 47 CFR 36.171 - Property held for future telecommunications use-Account 2002; Telecommunications plant under...

    Code of Federal Regulations, 2012 CFR

    2012-10-01

    ... 47 Telecommunication 2 2012-10-01 2012-10-01 false Property held for future telecommunications use-Account 2002; Telecommunications plant under construction-Account 2003; and Telecommunications plant adjustment-Account 2005. 36.171 Section 36.171 Telecommunication FEDERAL COMMUNICATIONS COMMISSION...

  10. 47 CFR 36.171 - Property held for future telecommunications use-Account 2002; Telecommunications plant under...

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ... 47 Telecommunication 2 2013-10-01 2013-10-01 false Property held for future telecommunications use-Account 2002; Telecommunications plant under construction-Account 2003; and Telecommunications plant adjustment-Account 2005. 36.171 Section 36.171 Telecommunication FEDERAL COMMUNICATIONS COMMISSION...

  11. 47 CFR 36.171 - Property held for future telecommunications use-Account 2002; Telecommunications plant under...

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ... 47 Telecommunication 2 2014-10-01 2014-10-01 false Property held for future telecommunications use-Account 2002; Telecommunications plant under construction-Account 2003; and Telecommunications plant adjustment-Account 2005. 36.171 Section 36.171 Telecommunication FEDERAL COMMUNICATIONS COMMISSION...

  12. 49 CFR 1242.37 - Dismantling retired property and depreciation (accounts XX-26-39 and 62-26-00).

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... 49 Transportation 9 2010-10-01 2010-10-01 false Dismantling retired property and depreciation (accounts XX-26-39 and 62-26-00). 1242.37 Section 1242.37 Transportation Other Regulations Relating to... (accounts XX-26-39 and 62-26-00). Separate common expenses in each account in proportion to the...

  13. Petrophysical properties and 3D block model of Buntsandstein Sandstones reservoir (Upper Rhine Graben)

    NASA Astrophysics Data System (ADS)

    Sébastien, Haffen; Yves, Géraud; Marc, Diraison; Chrystel, Dezayes

    2013-04-01

    Buntsandstein sandstones (upper Permian to middle Triassic), located in the Upper Rhine Graben, appear as an easy target for geothermal exploitation: this reservoir links more or less permeable argillaceous sandstones, intersected by many major faults, to the regional thermal anomaly. In this context, we propose a conceptual geological 3-D block model of the Buntsandstein reservoir which could be used as a guide for future regional geothermal exploration or exploitation. This block presents the Buntsandstein sandstones reservoir at depth with different sedimentary facies (braided rivers, playa lake and fluvio-aeolian), above the Palaeozoic Granit and below the Muschelkalk limestones, intersecting by faults oriented according regional major azimuths: (1) ≈N020°E, corresponding to Rhenish faults and (2) ≈N060°E (or ≈N130°E) corresponding to Hercynian reactivated faults. Petrophysical properties of the reservoir are both controlled by matrix and faults/fractures characteristics. (1) Matrix properties (porosity, permeability, thermal conductivity, Pwaves velocity) have been determined from petrophysical measurements performed on cores of 15 borehole, mainly on borehole EPS1 (Soultz-sous-Forêts, France), continuously cored through Buntsandstein; (2) from thermal gradient analyses based on thermal conductivity measurements on core samples and also from borehole temperature logs run in the same borehole. This last approach allows locating fluid flow and thus permeability at reservoir scale. The flow paths appear as a composite network controlled by 'sedimentary' permeability on one hand and by 'fracture' permeability on the other. Fracturing associated with major fault zones provide pathways for the upward flowing fluids to connect with stratigraphic levels characterized by high matrix permeability and no impermeable macroscopic layers. This is why the Playa Lake and Fluvio-aeolian marginal erg facies provide a reservoir connected to a deep hot fluid source

  14. 3 CFR 13553 - Executive Order 13553 of September 28, 2010. Blocking Property of Certain Persons With Respect to...

    Code of Federal Regulations, 2011 CFR

    2011-01-01

    ... 3 The President 1 2011-01-01 2011-01-01 false Executive Order 13553 of September 28, 2010. Blocking Property of Certain Persons With Respect to Serious Human Rights Abuses by the Government of Iran and Taking Certain Other Actions 13553 Order 13553 Presidential Documents Executive Orders Executive Order 13553 of September 28, 2010 EO...

  15. 3 CFR 13582 - Executive Order 13582 of August 17, 2011. Blocking Property of the Government of Syria and...

    Code of Federal Regulations, 2012 CFR

    2012-01-01

    ... 3 The President 1 2012-01-01 2012-01-01 false Executive Order 13582 of August 17, 2011. Blocking Property of the Government of Syria and Prohibiting Certain Transactions With Respect to Syria 13582 Order 13582 Presidential Documents Executive Orders Executive Order 13582 of August 17, 2011 EO 13582...

  16. Recruitment and blocking properties of the CardioFit stimulation lead

    NASA Astrophysics Data System (ADS)

    Ahilea Anholt, Tamar; Ayal, Shai; Goldberg, Joshua A.

    2011-06-01

    The CardioFit vagal stimulation system has been developed as a proposed therapy for congestive heart failure (CHF). CardioFit is to be implanted in several hundred CHF patients enrolled in the INOVATE-HF clinical trial, an FDA approved study. The CardioFit stimulation lead (CSL), which is a cuff electrode that delivers stimulation pulses to the right cervical vagus, was designed to recruit efferent cardiac vagal fibers while minimizing unwanted recruitment of other fibers. This paper presents the CSL and measurements of its recruiting and blocking properties when placed on isolated porcine vagus nerves maintained at an elevated temperature in oxygenated artificial cerebrospinal fluid. Using charge balanced quasi-trapezoidal pulses driven through the CSL, we show in eight out of nine nerves a 63% ± 13% (mean ± SD) unidirectional attenuation of the A-fiber compound action potential attained at a current of 3.0 ± 0.8 mA. The threshold for the activation of A- and B-fibers was found to be 0.3 ± 0.17 mA and 2.5 ± 1.1 mA, respectively. The results presented here should help to guide the optimal parameters used in the upcoming deployment of the CardioFit system.

  17. Differences in Membrane Properties in Simulated Cases of Demyelinating Neuropathies: Internodal Focal Demyelinations with Conduction Block

    PubMed Central

    Daskalova, M. S.; Alexandrov, A. S.

    2006-01-01

    The aim of this study is to investigate the membrane properties (potentials and axonal excitability indices) in the case of myelin wrap reduction (96%) in one, two and three consecutive internodes along the length of human motor nerve fibre. The internodally focally demyelinated cases (termed as IFD1, IFD2 and IFD3, respectively, with one, two and three demyelinated internodes are simulated using our previous double cable model of the fibre. The progressively greater increase of focal loss of myelin lamellae blocks the invasion of the intracellular potentials into the demyelinated zones. For all investigated cases, the radial decline of the extracellular potential amplitudes increases with the increase of the radial distance and demyelination, whereas the electrotonic potentials show a decrease in the slow part of the depolarizing and hyperpolarizing responses. The time constants are shorter and the rheobases higher for the IFD2 and IFD3 cases than for the normal case. In the recovery cycles, the same cases have less refractoriness, greater supernormality and less late subnormality than the normal case. The simulated membrane abnormalities can be observed in vivo in patients with demyelinating forms of Guillain-Barré syndrome. The study provides new information about the pathophysiology of acquired demyelinating neuropathies. PMID:19669456

  18. Study of carrier blocking property of poly-linalyl acetate thin layer by electric-field-induced optical second-harmonic generation measurement

    NASA Astrophysics Data System (ADS)

    Taguchi, Dai; Manaka, Takaaki; Iwamoto, Mitsumasa; Anderson, Liam J.; Jacob, Mohan V.

    2014-02-01

    By using electric-field-induced optical second-harmonic generation (EFISHG) measurement, we studied the carrier-blocking property of poly-linalyl acetate (PLA) thin layers sandwiched in indium-zinc-oxide (IZO)/PLA/C60/Al double-layer diodes. Results showed that the PLA layer totally blocks electrons crossing the C60 layer, and also blocks holes entering from the IZO layer. The EFISHG measurement effectively substantiates the hole-blocking electron-blocking property of the PLA layer sandwiched in double layer diodes.

  19. Processing-structure-mechanical Property Relationships of Semicrystalline Polyolefin-based Block Copolymers

    SciTech Connect

    Deplace, F.; Wang, Z; Lynd, N; Hotta, A; Rose, J; Hustad, P; Tian, J; Ohtaki, H; Coates, J; et. al.

    2010-01-01

    The incremental plastic deformation of the crystals of block copolymers made of semicrystalline polypropylene endblocks and amorphous ethylene-r-propylene midblocks occurring during step cycle tensile tests has dramatic effects on the stress-strain curves. This can be understood from the evolution of the morphology and of the microstructure of the crystalline blocks revealed by X-ray scattering experiments.

  20. Surface-compositional Properties of Lava Plains in Syria-Thaumasia Block, Mars

    NASA Astrophysics Data System (ADS)

    Huang, J.; Xiao, L.; Kraft, M. D.; Christensen, P. R.; Edwards, C. S.; Ruff, S. W.; Dohm, J.

    2012-12-01

    Mars has a long and complex volcanic history (Greeley and Spudis, 1981; Carr, 2006). Among abundant plain-style volcanism and various edifices, Tharsis bulge is a prominent and long-lasting (Werner, 2009) volcanic province. However, there is little report about compositional variations before and after Tharsis uplift. The Syria- Thaumasia block (STB) is a complex tectono-volcanic province related to the Tharsis bulge. Understanding its formation is critical to characterizing the early history and planetary evolution of Mars. The STB lies at the southern edge of Tharsis bulge. It consists of lava plains (Syria, Solis, Sinai and Thaumasia Plana) bounded by an arcuate region of higher topography (Thaumasia Highlands, Melas Dorsa and Coprates Rise) and Valles Marineris to the north. Previous work on surface thermophysical properties (Christensen, 1988; Jakosky et al., 2000; Putzig and Mellon, 2007) and visible/near infrared and thermal infrared remote sensing spectroscopic compositional analysis (Bandfield, 2000; Bibring et al., 2006; Rogers and Christensen, 2007) had been done only in a global scale, but regional study of both surface thermophysical properties and compositions for each of the distinct lava plains in STB is lacking. In this study, we characterize a variety of volcanic features, including lava tubes, channels and their relationships with wrinkle ridges within lava plains using THEMIS infrared data (100 m/pixel: Christensen et al., 2004), CTX data (6 m/pixel: Malin et al., 2007) and HiRISE data (25 cm/pixel: McEwen et al., 2007). We assessed the surface thermophysical properties and compositions of lava plains using TES data (Christensen et al., 2001). The geomorphic features imply the lava emplacement mechanisms, while their relationships indicate the chronologic relationships between Tharsis uplift and lava emplacement. The compositional results show variations within the lava plains (Table 1), while the thermophysical results show the compositional

  1. Rheology and interfacial properties of aqueous solutions of the diblock polyelectrolyte poly(styrene-block-acrylic acid)

    NASA Astrophysics Data System (ADS)

    Kimerling, Abigail

    In aqueous solutions diblock polyelectrolytes with amphiphilic character form aggregate structures, which affect physical properties such as viscosity, elasticity, surface tension, and film hydrophilicity. Potential applications for diblock polyelectrolyte solutions include coatings, inks, oil recovery agents, personal care products, and biomaterials. By varying the diblock polyelectrolyte and solution properties, the solutions can be tuned to meet the needs of particular applications. The research objective was to identify the influences of block length, pH, and ionic strength on the rheological and interfacial properties of poly(styrene- b-acrylic acid) (PS-PAA) solutions. Six polymers with varied PS and PAA block lengths were examined, all at 1.0 wt% in aqueous solutions. The hydrophobicity of the PS block causes the formation of spherical micelles in aqueous solutions. Increasing the solution pH ionizes the PAA block, which leads to an increase in micelle corona thickness due to repulsions between chains. Major trends observed in the rheological and interfacial properties can be understood in terms of expected changes in the micelle size and interfacial self-assembly with pH, ionic strength, and block length. Addition of NaOH was found to increase the solution pH and initially led to increases in solution viscosity, elasticity, surface tension, and film hydrophilicity. This effect was attributed to creation of larger micelles and greater inter-micellar repulsions as the PAA chain became more fully charged. However, when the concentration of NaOH exceeded a critical value, the solution viscosity, elasticity, and film hydrophilicity decreased. It is believed this was due to charge shielding by excess sodium ions, leading to shrinkage of the micelle corona and smaller micelles. Increasing the PS-PAA solution ionic strength by adding NaCl also provided charge shielding, as observed by decreases in solution viscosity and elasticity. Increasing the length of either

  2. Blocking Plasmodium falciparum Malaria Transmission with Drugs: The Gametocytocidal and Sporontocidal Properties of Current and Prospective Antimalarials

    PubMed Central

    Kiszewski, Anthony E.

    2011-01-01

    Drugs that kill or inhibit the sexual stages of Plasmodium could potentially amplify or synergize the impact of other interventions by blocking transmission to mosquitoes. Primaquine and other 8-aminoquinolines have long offered such potential, but safety and other concerns have limited their use. Although transmission-blocking properties are not often a priority of drug discovery efforts, a number of interesting gametocytocidal and/or sporontocidal drug candidates have emerged in recent years. Some still bear significant technical and safety concerns, while others have passed clinical trials and are on the verge of entering the antimalarial armamentarium. Recent advances in our knowledge of gametocyte differentiation, gametogenesis and sporogony have also led to the identification of a large array of potential new targets for drugs that might interfere with malaria transmission. This review examines the properties of existing and prospective drugs, mechanisms of action, counter-indications and their potential role in regional malaria elimination efforts.

  3. John H. Dillon Medal: Tapered Block Copolymers: Tuning Self-Assembly and Properties by Manipulating Monomer Segment Distributions

    NASA Astrophysics Data System (ADS)

    Epps, Thomas

    The self-assembly of block copolymers (BCPs) presents unique opportunities to design materials with attractive chemical and mechanical properties based on the ability of BCPs to form periodic structures with nanoscale domain spacings. One area of recent progress in our group focuses on the behavior of tapered BCPs in which the segment distribution at the interface between blocks is synthetically varied to tune morphology, domain density profiles, thermal transitions as well as mechanical and transport properties. Two application targets for these materials are lithium-ion conducting membranes for batteries and nanostructured thin films for nanotemplates and barrier membranes. In the first target area, we found that the taper volume fraction and composition allow us to manipulate the self-assembly of salt-doped BCPs in a well-defined manner that permits optimization of morphology and ion-content. Additionally, we found that the tapered interfaces influence the glass-transition behavior of the ion-conducting block leading to significant changes in lithium-ion transport (ion conductivity). In the second target area, we found the taper content alters the rate of self-assembly as well as the rate of island/hole formation (and ultimate island/hole size) upon thermal annealing. Additionally, using reflectivity techniques, we probed the domain density profiles as a function of taper composition and linked these profiles to changes in domain spacing and glass transition temperature. Overall, these studies show the versatility of tapering to provide a unique handle for simultaneously optimizing multiple materials properties.

  4. 31 CFR 538.403 - Termination and acquisition of an interest in blocked property.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... transfer of property (including any property interest) away from the Government of Sudan, such property shall no longer be deemed to be property in which the Government of Sudan has or has had an interest unless there exists in the property another interest of the Government of Sudan, the transfer of...

  5. 31 CFR 538.403 - Termination and acquisition of an interest in blocked property.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... transfer of property (including any property interest) away from the Government of Sudan, such property shall no longer be deemed to be property in which the Government of Sudan has or has had an interest unless there exists in the property another interest of the Government of Sudan, the transfer of...

  6. 31 CFR 538.403 - Termination and acquisition of an interest in blocked property.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... transfer of property (including any property interest) away from the Government of Sudan, such property shall no longer be deemed to be property in which the Government of Sudan has or has had an interest unless there exists in the property another interest of the Government of Sudan, the transfer of...

  7. 31 CFR 538.403 - Termination and acquisition of an interest in blocked property.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... transfer of property (including any property interest) away from the Government of Sudan, such property shall no longer be deemed to be property in which the Government of Sudan has or has had an interest unless there exists in the property another interest of the Government of Sudan, the transfer of...

  8. 31 CFR 538.403 - Termination and acquisition of an interest in blocked property.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... transfer of property (including any property interest) away from the Government of Sudan, such property shall no longer be deemed to be property in which the Government of Sudan has or has had an interest unless there exists in the property another interest of the Government of Sudan, the transfer of...

  9. 31 CFR 560.422 - Termination and acquisition of an interest in blocked property.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... the transfer of property (including any property interest) away from the Government of Iran, an... property interest) is transferred or attempted to be transferred to the Government of Iran, an Iranian... § 560.211, such property shall be deemed to be property in which the Government of Iran, an...

  10. 31 CFR 560.422 - Termination and acquisition of an interest in blocked property.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... the transfer of property (including any property interest) away from the Government of Iran, an... property interest) is transferred or attempted to be transferred to the Government of Iran, an Iranian... § 560.211, such property shall be deemed to be property in which the Government of Iran, an...

  11. 26 CFR 1.987-2 - Accounting for gain or loss on certain transfers of property. [Reserved

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ... 26 Internal Revenue 10 2010-04-01 2010-04-01 false Accounting for gain or loss on certain transfers of property. 1.987-2 Section 1.987-2 Internal Revenue INTERNAL REVENUE SERVICE, DEPARTMENT OF THE TREASURY (CONTINUED) INCOME TAX (CONTINUED) INCOME TAXES Export Trade Corporations § 1.987-2 Accounting...

  12. 26 CFR 1.167(f)-1 - Reduction of salvage value taken into account for certain personal property.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ... 26 Internal Revenue 2 2010-04-01 2010-04-01 false Reduction of salvage value taken into account for certain personal property. 1.167(f)-1 Section 1.167(f)-1 Internal Revenue INTERNAL REVENUE SERVICE... for Individuals and Corporations § 1.167(f)-1 Reduction of salvage value taken into account...

  13. 31 CFR 542.403 - Termination and acquisition of an interest in blocked property.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... transfer of property (including any property interest) away from the Government of Syria or any other... transferred or attempted to be transferred to the Government of Syria or any other person whose property...

  14. Scaling properties and fractality in the distribution of coding segments in eukaryotic genomes revealed through a block entropy approach

    NASA Astrophysics Data System (ADS)

    Athanasopoulou, Labrini; Athanasopoulos, Stavros; Karamanos, Kostas; Almirantis, Yannis

    2010-11-01

    Statistical methods, including block entropy based approaches, have already been used in the study of long-range features of genomic sequences seen as symbol series, either considering the full alphabet of the four nucleotides or the binary purine or pyrimidine character set. Here we explore the alternation of short protein-coding segments with long noncoding spacers in entire chromosomes, focusing on the scaling properties of block entropy. In previous studies, it has been shown that the sizes of noncoding spacers follow power-law-like distributions in most chromosomes of eukaryotic organisms from distant taxa. We have developed a simple evolutionary model based on well-known molecular events (segmental duplications followed by elimination of most of the duplicated genes) which reproduces the observed linearity in log-log plots. The scaling properties of block entropy H(n) have been studied in several works. Their findings suggest that linearity in semilogarithmic scale characterizes symbol sequences which exhibit fractal properties and long-range order, while this linearity has been shown in the case of the logistic map at the Feigenbaum accumulation point. The present work starts with the observation that the block entropy of the Cantor-like binary symbol series scales in a similar way. Then, we perform the same analysis for the full set of human chromosomes and for several chromosomes of other eukaryotes. A similar but less extended linearity in semilogarithmic scale, indicating fractality, is observed, while randomly formed surrogate sequences clearly lack this type of scaling. Genomic sequences always present entropy values much lower than their random surrogates. Symbol sequences produced by the aforementioned evolutionary model follow the scaling found in genomic sequences, thus corroborating the conjecture that “segmental duplication-gene elimination” dynamics may have contributed to the observed long rangeness in the coding or noncoding alternation in

  15. Temperature effects on structural properties of pluronic P104 and F108 PEO-PPO-PEO block copolymer solutions

    SciTech Connect

    Alexandridis, P.; Nivaggioli, T.; Hatton, T.A.

    1995-05-01

    The effects of temperature on the micellization properties and the structure of the micelles for two poly(ethylene-oxide)-block-poly(propylene oxide)-block-poly(ethylene oxide) (PEO-PPO-PEO) copolymers, having similar size hydrophobic (PPO) blocks and different size hydrophilic (PEO) blocks, are reported. Critical micellization concentration (CMC) and temperature (CMT) values for aqueous copolymer solutions were obtained from a dye solubilization method and corroborated with differential scanning calorimetry, surface tension, density, light scattering intensity, and fluorescence spectroscopy experiments; very good agreement among the different techniques is observed. The extraction of CMC and CMT values from the characteristic features of the data obtained from the various techniques is discussed. The hydrodynamic radii of the copolymer micelles, determined using dynamic light scattering, remained constant over the temperature range investigated; the polydispersity of the micelle size decreased with temperature. The micropolarity in aqueous copolymer solutions was probed as a function of temperature using the I{sub 1}/I{sub 3} intensity ratio of the pyrene vibrational fine structure recorded in fluorescence emission spectra. The decreasing values for the intensity ratio, following the formation of micelles, were considered to be a linear combination of the temperature effects on polarity observed in bulk PEO and PPO homopolymers, and in water. 59 refs., 10 figs., 2 tabs.

  16. Micromechanical modeling of elastic properties of cortical bone accounting for anisotropy of dense tissue.

    PubMed

    Salguero, Laura; Saadat, Fatemeh; Sevostianov, Igor

    2014-10-17

    The paper analyzes the connection between microstructure of the osteonal cortical bone and its overall elastic properties. The existing models either neglect anisotropy of the dense tissue or simplify cortical bone microstructure (accounting for Haversian canals only). These simplifications (related mostly to insufficient mathematical apparatus) complicate quantitative analysis of the effect of microstructural changes - produced by age, microgravity, or some diseases - on the overall mechanical performance of cortical bone. The present analysis fills this gap; it accounts for anisotropy of the dense tissue and uses realistic model of the porous microstructure. The approach is based on recent results of Sevostianov et al. (2005) and Saadat et al. (2012) on inhomogeneities in a transversely-isotropic material. Bone's microstructure is modeled according to books of Martin and Burr (1989), Currey (2002), and Fung (1993) and includes four main families of pores. The calculated elastic constants for porous cortical bone are in agreement with available experimental data. The influence of each of the pore types on the overall moduli is examined. PMID:25234350

  17. Artificial neural network analysis for predicting human percutaneous absorption taking account of vehicle properties.

    PubMed

    Atobe, Tomomi; Mori, Masaaki; Yamashita, Fumiyoshi; Hashida, Mitsuru; Kouzuki, Hirokazu

    2015-04-01

    An in silico method for predicting percutaneous absorption of cosmetic ingredients was developed by using artificial neural network (ANN) analysis to predict the human skin permeability coefficient (log Kp), taking account of the physicochemical properties of the vehicle, and the apparent diffusion coefficient (log D). Molecular weight and octanol-water partition coefficient (log P) of chemicals, and log P of the vehicles, were used as molecular descriptors for predicting log Kp and log D of 359 samples, for which literature values of either or both of log Kp and log D were available. Adaptivity of the ANN model was evaluated in comparison with a multiple linear regression model (MLR) by calculating the root-mean-square (RMS) errors. Accuracy and robustness were confirmed by 10-fold cross-validation. The predictive RMS errors of the ANN model were smaller than those of the MLR model (log Kp; 0.675 vs 0.887, log D; 0.553 vs 0.658), indicating superior performance. The predictive RMS errors for log Kp and log D with the ANN model after 10-fold cross-validation analysis were 0.723 and 0.606, respectively. Moreover, we estimated the cumulative amounts of chemicals permeated into the skin during 24 hr (Q24hr) from the values of log Kp and log D by applying Fick's law of diffusion. Our results suggest that this newly established ANN analysis method, taking account of the property of the vehicle, could contribute to non-animal risk assessment of cosmetic ingredients by providing a tool for calculating Q24hr, which is required for evaluating the margin of safety. PMID:25786531

  18. 31 CFR 537.201 - Prohibited transactions involving certain blocked property.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... Office of Foreign Assets Control's Specially Designated Nationals and Blocked Persons List (“SDN List”) with the identifier “ .” The SDN List is accessible through the following page on the Office of Foreign Assets Control's Web site: http://www.treasury.gov/sdn. Additional information pertaining to the SDN...

  19. 31 CFR 537.201 - Prohibited transactions involving certain blocked property.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... Office of Foreign Assets Control's Specially Designated Nationals and Blocked Persons List (“SDN List”) with the identifier “ .” The SDN List is accessible through the following page on the Office of Foreign Assets Control's Web site: http://www.treasury.gov/sdn. Additional information pertaining to the SDN...

  20. 31 CFR 595.403 - Termination and acquisition of an interest in blocked property.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... transfer of property (including any property interest) away from a specially designated terrorist, such property shall no longer be deemed to be property in which a specially designated terrorist has or has had an interest, or which is held in the name of a specially designated terrorist, unless there exists...

  1. 31 CFR 536.403 - Termination and acquisition of an interest in blocked property.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... Money and Finance (Continued) OFFICE OF FOREIGN ASSETS CONTROL, DEPARTMENT OF THE TREASURY NARCOTICS... the transfer of property (including any property interest) away from a specially designated narcotics trafficker, such property shall no longer be deemed to be property in which a specially designated...

  2. 31 CFR 536.403 - Termination and acquisition of an interest in blocked property.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... Money and Finance (Continued) OFFICE OF FOREIGN ASSETS CONTROL, DEPARTMENT OF THE TREASURY NARCOTICS... the transfer of property (including any property interest) away from a specially designated narcotics trafficker, such property shall no longer be deemed to be property in which a specially designated...

  3. 31 CFR 536.403 - Termination and acquisition of an interest in blocked property.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... Money and Finance (Continued) OFFICE OF FOREIGN ASSETS CONTROL, DEPARTMENT OF THE TREASURY NARCOTICS... the transfer of property (including any property interest) away from a specially designated narcotics trafficker, such property shall no longer be deemed to be property in which a specially designated...

  4. 31 CFR 536.403 - Termination and acquisition of an interest in blocked property.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... Money and Finance (Continued) OFFICE OF FOREIGN ASSETS CONTROL, DEPARTMENT OF THE TREASURY NARCOTICS... the transfer of property (including any property interest) away from a specially designated narcotics trafficker, such property shall no longer be deemed to be property in which a specially designated...

  5. 31 CFR 536.403 - Termination and acquisition of an interest in blocked property.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... Money and Finance (Continued) OFFICE OF FOREIGN ASSETS CONTROL, DEPARTMENT OF THE TREASURY NARCOTICS... the transfer of property (including any property interest) away from a specially designated narcotics trafficker, such property shall no longer be deemed to be property in which a specially designated...

  6. The effect of water absorption on the viscoelastic properties of poly(styrene-block-isobutylene-block-styrene) for use in biomedical applications

    NASA Astrophysics Data System (ADS)

    Fittipaldi, Mauro; Rodriguez, Luis A.; Grace, Landon R.

    2015-05-01

    The decrease in glass transition temperature and change in creep compliance due to water diffusion in a biocompatible thermoplastic elastomer was studied and quantified. Knowledge of the mechanical and viscoelastic performance of the styrene-isobutylene-styrene block (SIBS) copolymer is important to determine the feasibility of certain in-vivo applications. Furthermore, the deterioration in these types of properties due to the plasticizing effect of water must be well understood for long term usage. Samples were formed with an injection molding press and fully dried prior to immersion in distilled water at 37°C. Water diffusion kinetics were studied for four different SIBS copolymers of varying molecular weight and styrene content by measuring weight changes as a function of time. These gravimetric diffusion studies showed an inverse relationship between diffusivity and styrene content and molecular weight for the first thousand hours of immersion. Measurements of storage modulus, loss modulus, tangent delta, strain recovery and creep compliance were performed using a dynamic mechanical analyzer for the high molecular weight, high styrene content SIBS version at different absorbed water contents. A measurable and nearly linear decrease of the glass transition temperature and creep recovery with respect to water content was observed for the samples tested even at relatively low water content: an increase in water content of 0.27% correlated to a decrease of 4°C in glass transition temperature while a 0.16% weight increase corresponded to a 12.5% decrease in creep recovery. These quantified material properties restrict the use of SIBS in certain implantable operations that undergo cyclic strains, and in sterilization techniques that require high temperatures. As such, they are important to understand in order to determine the viability of in vivo usage of this biocompatible polymer.

  7. 26 CFR 1.167(a)-7 - Accounting for depreciable property.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ... composite account. For example, all the assets used in a business may be included in a single account. Group, classified, or composite accounts may be further broken down on the basis of location, dates of acquisition, cost, character, use, etc. (b) When group, classified, or composite accounts are used with...

  8. 49 CFR 1242.51 - Dismantling retired property and depreciation (accounts XX-27-39 and 62-27-00).

    Code of Federal Regulations, 2012 CFR

    2012-10-01

    ... 49 Transportation 9 2012-10-01 2012-10-01 false Dismantling retired property and depreciation (accounts XX-27-39 and 62-27-00). 1242.51 Section 1242.51 Transportation Other Regulations Relating to... FOR RAILROADS 1 Operating Expenses-Equipment § 1242.51 Dismantling retired property and...

  9. 49 CFR 1242.51 - Dismantling retired property and depreciation (accounts XX-27-39 and 62-27-00).

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... 49 Transportation 9 2010-10-01 2010-10-01 false Dismantling retired property and depreciation (accounts XX-27-39 and 62-27-00). 1242.51 Section 1242.51 Transportation Other Regulations Relating to... FOR RAILROADS 1 Operating Expenses-Equipment § 1242.51 Dismantling retired property and...

  10. On linear structure and phase rotation invariant properties of block 2(sup l)-PSK modulation codes

    NASA Technical Reports Server (NTRS)

    Lin, Shu

    1990-01-01

    Two important structural properties of block 2(l)-ary PSK (phase shift keying) modulation codes, linear structure and phase symmetry, are investigated. For an additive white Gaussian noise (AWGN) channel, the error performance of a modulation code depends on its squared Euclidean distance distribution. Linear structure of a code makes the error performance analysis much easier. Phase symmetry of a code is important in resolving carrier phase ambiguity and ensuring rapid carrier phase resynchronization after temporary loss of synchronization. It is desirable for a code to have as many phase symmetries as possible. A 2(l)-ary modulation code is represented here as a code with symbols from the integer group. S sub 2(l) PSK = (0,1,2,...,2(l)-1), under the modulo-2(l) addition. The linear structure of block 2(l)-ary PSK modulation codes over S sub 2(l)-ary PSK with respect to the modulo-2(l) vector addition is defined, and conditions under which a block 2(l)-ary PSK modulation code is linear are derived. Once the linear structure is developed, phase symmetry of a block 2(l)-ary PSK modulation code is studied. It is a necessary and sufficient condition for a block 2(l)-PSK modulation code, which is linear as a binary code, to be invariant under 180 deg/2(l-h) phase rotation, for 1 is less than or equal to h is less than or equal to l. A list of short 8-PSK and 16-PSK modulation codes is given, together with their linear structure and the smallest phase rotation for which a code is invariant.

  11. A heated flatjack test series to measure the thermomechanical and transport properties of in situ rock masses (heated block test)

    NASA Astrophysics Data System (ADS)

    Hardin, E.; Barton, N.; Lingle, D.; Board, M.; Voegele, M.

    1982-09-01

    An instrumented 8 cu m block of jointed gneiss was subjected to biaxial and uniaxial loading at ambient and elevated temperatures, using flatjacks and a line of borehole heaters. The following rock mass properties were investigated under various conditions of stress (0 to 6.9 MPa, uniaxial and biaxial) and temperature (12 to 74 C mean block temperature): joint permeability, static modulus, dynamic modulus, joint normal and shear stiffness, coefficient of thermal expansion, thermal conductivity and diffusivity. The instrumentation array included multiple position borehole extensometers, DCDT and IRAD surface strainmeters, various borehole stressmeters and deformation gages, numerous thermocouples and Whitemore strain gage measurement points. The coefficient of thermal expansion was found to initially reduce with increasing temperature in the horizontal loaded directions, and to increase in the unloaded vertical direction.

  12. Strains and tilts on crustal blocks

    NASA Technical Reports Server (NTRS)

    Bilham, R. G.; Beavan, R. J.

    1979-01-01

    Geodetic work done over the past century is examined to investigate block motion in areas of intense tectonic deformation, with special attention to geodetic releveling data obtained for Japan. Problems in interpreting strainmeter and tiltmeter to study the behavior of crustal blocks and block boundaries are discussed. Block dimensions of 5 to 50 km seem to occur frequently in regions of intense tectonic activity. Block boundaries are often considerably weaker than contiguous crustal blocks, resulting in a concentration of strains at boundaries and decrease of strains within blocks. Block to block variations in tilt phase and magnitude are observed. There is some evidence that block boundaries may exhibit strain-dependent elastic properties or respond viscoelastically, possibly accounting for the slow transmission of tectonic deformation reported in Japan. If nonlinear behavior is characteristic of regions fragmented by crustal blocks, it will generally not be possible to apply a site correction factor based on the observed distortion of tidal or seismic strains in interpreting secular strains.

  13. 31 CFR 540.403 - Termination and acquisition of an interest in blocked property.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... Government of the Russian Federation, such property shall no longer be deemed to be property in which the Government of the Russian Federation has or has had an interest unless there exists in the property another interest of the Government of the Russian Federation, the transfer of which has not been effected...

  14. 31 CFR 540.403 - Termination and acquisition of an interest in blocked property.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... Government of the Russian Federation, such property shall no longer be deemed to be property in which the Government of the Russian Federation has or has had an interest unless there exists in the property another interest of the Government of the Russian Federation, the transfer of which has not been effected...

  15. 31 CFR 540.403 - Termination and acquisition of an interest in blocked property.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... Government of the Russian Federation, such property shall no longer be deemed to be property in which the Government of the Russian Federation has or has had an interest unless there exists in the property another interest of the Government of the Russian Federation, the transfer of which has not been effected...

  16. 31 CFR 540.403 - Termination and acquisition of an interest in blocked property.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... Government of the Russian Federation, such property shall no longer be deemed to be property in which the Government of the Russian Federation has or has had an interest unless there exists in the property another interest of the Government of the Russian Federation, the transfer of which has not been effected...

  17. 31 CFR 540.403 - Termination and acquisition of an interest in blocked property.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... Government of the Russian Federation, such property shall no longer be deemed to be property in which the Government of the Russian Federation has or has had an interest unless there exists in the property another interest of the Government of the Russian Federation, the transfer of which has not been effected...

  18. Molecular modeling of the elastomeric properties of repeating units and building blocks of resilin, a disordered elastic protein.

    PubMed

    Khandaker, Md Shahriar K; Dudek, Daniel M; Beers, Eric P; Dillard, David A; Bevan, David R

    2016-08-01

    The mechanisms responsible for the properties of disordered elastomeric proteins are not well known. To better understand the relationship between elastomeric behavior and amino acid sequence, we investigated resilin, a disordered rubber-like protein, found in specialized regions of the cuticle of insects. Resilin of Drosophila melanogaster contains Gly-rich repetitive motifs comprised of the amino acids, PSSSYGAPGGGNGGR, which confer elastic properties to resilin. The repetitive motifs of insect resilin can be divided into smaller partially conserved building blocks: PSS, SYGAP, GGGN and GGR. Using molecular dynamics (MD) simulations, we studied the relative roles of SYGAP, and its less common variants SYSAP and TYGAP, on the elastomeric properties of resilin. Results showed that SYGAP adopts a bent structure that is one-half to one-third the end-to-end length of the other motifs having an equal number of amino acids but containing SYSAP or TYGAP substituted for SYGAP. The bent structure of SYGAP forms due to conformational freedom of glycine, and hydrogen bonding within the motif apparently plays a role in maintaining this conformation. These structural features of SYGAP result in higher extensibility compared to other motifs, which may contribute to elastic properties at the macroscopic level. Overall, the results are consistent with a role for the SYGAP building block in the elastomeric properties of these disordered proteins. What we learned from simulating the repetitive motifs of resilin may be applicable to the biology and mechanics of other elastomeric biomaterials, and may provide us the deeper understanding of their unique properties. PMID:26851528

  19. Cooperativity in A-tract structure and bending properties of composite TnAn blocks.

    PubMed

    Haran, T E; Crothers, D M

    1989-04-01

    The existence of intrinsically curved DNA molecules incorporating short runs of adenines is undisputed, but none of the current models can explain the entire experimental data set. Recently, Burkhoff and Tullius [Burkhoff, A. M., & Tullius, T. D. (1988) Nature 331, 455-457] offered an explanation for Hagerman's observations on A4T4N2 vs T4A4N2 polymers [Hagerman, P. J. (1986) Nature 321, 449-450], which showed that A4T4N2 multimers migrate anomalously slowly on polyacrylamide gels and T4A4N2 multimers migrate normally. In A4T4N2 multimers Burkhoff and Tullius observe a hydroxy-radical cutting pattern associated with bent DNA and a B-like cutting pattern in T4A4N2. They attribute this difference in cutting pattern to a clash in the TA step of T4A4N2 and suggest that TA4N5 might already adopt an unbent B-DNA conformation [Tullius T. D., & Burkhoff, A. M. (1988) in Structure and Expression. Vol. 3: DNA Bending and Curvature (Olson, W. K., Sarma, M. H., Sarma, R. H., & Sundaralingam, M., Eds.) pp 77-85, Adenine Press, Guilderland, NY]. We show that the conformation adopted by TnAn blocks is similar to that of AnTn blocks. Two A-tract structures of opposite polarity coexist in both blocks. Moreover, we demonstrate a cooperative buildup of a T-tract structure adjacent to an A-tract structure that cannot be predicted by any of the current models. We conclude that AA steps do not assume the same conformation in long tracts of A's as in isolated AA steps. Therefore, the assumption of nearest-neighbor models, that global curvature is an additive phenomenon of local effects, is invalid. PMID:2742812

  20. Property Accounting. A Handbook of Standard Terminology and a Guide for Classifying Information about Education Property. State Educational Records and Reports Series: Handbook III, Revised 1977.

    ERIC Educational Resources Information Center

    Seibert, Ivan N.

    This handbook is offered as a resource for local, intermediate, state, and federal education officials to assist in the identification, organization, and definition of data and information about education property. An introduction and directions are followed by a discussion of concepts associated with property accounting and some general…

  1. Mechanical properties of poly(dimethylsiloxane)-block-poly(2-methyloxazoline) polymersomes probed by atomic force microscopy.

    PubMed

    Jaskiewicz, Karmena; Makowski, Marcin; Kappl, Michael; Landfester, Katharina; Kroeger, Anja

    2012-08-28

    Poly(dimethylsiloxane)-block-poly(2-methyloxazoline) (PDMS-b-PMOXA) vesicles were characterized by a combination of dynamic light scattering (DLS), cryogenic transmission electron microscopy (cryo-TEM), and atomic force microscopy imaging and force spectroscopy (AFM). From DLS data, a hydrodynamic radius of ~150 nm was determined, and cryo-TEM micrographs revealed a bilayer thickness of ~16 nm. In AFM experiments on a silicon wafer substrate, adsorption led to a stable spherical caplike conformation of the polymersomes, whereas on mica, adsorption resulted also in vesicle fusion and formation of bilayer patches or multilayer stacks. This indicates a delicate balance between the mechanical stability of PDMS-b-PMOXA polymersomes on one hand and the driving forces for spreading on the other. A Young's modulus of 17 ± 11 MPa and a bending modulus of 7 ± 5 × 10(-18) J were derived from AFM force spectroscopy measurements. Therefore, the elastic response of the PDMS-b-PMOXA polymersomes to external stimuli is much closer to that of lipid vesicles compared to other types of polymersomes, such as polystyrene-block-poly(acrylic acid) (PS-b-PAA). PMID:22860888

  2. Unique inner pore properties of BK channels revealed by quaternary ammonium block.

    PubMed

    Li, Weiyan; Aldrich, Richard W

    2004-07-01

    Potassium channels have a very wide distribution of single-channel conductance, with BK type Ca(2+)-activated K(+) channels having by far the largest. Even though crystallographic views of K(+) channel pores have become available, the structural basis underlying BK channels' large conductance has not been completely understood. In this study we use intracellularly applied quaternary ammonium compounds to probe the pore of BK channels. We show that molecules as large as decyltriethylammonium (C(10)) and tetrabutylammonium (TBA) have much faster block and unblock rates in BK channels when compared with any other tested K(+) channel types. Additionally, our results suggest that at repolarization large QA molecules may be trapped inside blocked BK channels without slowing the overall process of deactivation. Based on these findings we propose that BK channels may differ from other K(+) channels in its geometrical design at the inner mouth, with an enlarged cavity and inner pore providing less spatially restricted access to the cytoplasmic solution. These features could potentially contribute to the large conductance of BK channels. PMID:15197222

  3. Nanomechanical properties of solvent cast polystyrene and poly(methyl methacrylate) polymer blends and self-assembled block copolymers

    NASA Astrophysics Data System (ADS)

    Lorenzoni, Matteo; Evangelio, Laura; Nicolet, Célia; Navarro, Christophe; San Paulo, Alvaro; Rius, Gemma; Pérez-Murano, Francesc

    2015-07-01

    The nanomechanical properties of solvent-cast polymer thin films have been investigated using PeakForce™ Quantitative Nanomechanical Mapping. The samples consisted of films of polystyrene (PS) and poly(methyl methacrylate) (PMMA) obtained after the dewetting of toluene solution on a polymeric brush layer. Additionally, we have probed the mechanical properties of poly(styrene-b-methyl methacrylate) block copolymers (BCP) as randomly oriented thin films. The probed films have a critical thickness <50 nm and present features to be resolved <42 nm. The Young's modulus values obtained through several nanoindentation experiments present a good agreement with previous literature, suggesting that the PeakForce™ technique could be crucial for BCP investigations, e.g., as a predictor of the mechanical stability of the different phases.

  4. Multifunctional imine-POSS as uncommon 3D nanobuilding blocks for supramolecular hybrid materials: synthesis, structural characterization, and properties.

    PubMed

    Janeta, Mateusz; John, Łukasz; Ejfler, Jolanta; Lis, Tadeusz; Szafert, Sławomir

    2016-08-01

    In this article, we report on the chemistry and the spectroscopic properties of well-defined imino-functionalized polyoctahedral oligomeric silsesquioxanes (imine-POSS) with various substitutions. Our efforts were mainly focused on side chains with sizable aryl groups possessing hydroxyl, nitro, and halide moieties. Such a choice enabled us to track their reduction abilities to secondary amine-POSS, tautomerization effects, and thermal properties. We also report for the first time the solid-state structures of five imino-functionalized cage-like octasilsesquioxanes. These structures provide unique examples of the complexities of three-dimensional packing motifs and their relationship with the assembly of tunable materials from nanobuilding blocks. PMID:27438046

  5. Biophysical properties of dermal building-blocks affects extra cellular matrix assembly in 3D endogenous macrotissue.

    PubMed

    Urciuolo, F; Garziano, A; Imparato, G; Panzetta, V; Fusco, S; Casale, C; Netti, P A

    2016-03-01

    The fabrication of functional tissue units is one of the major challenges in tissue engineering due to their in vitro use in tissue-on-chip systems, as well as in modular tissue engineering for the construction of macrotissue analogs. In this work, we aim to engineer dermal tissue micromodules obtained by culturing human dermal fibroblasts into porous gelatine microscaffold. We proved that such stromal cells coupled with gelatine microscaffolds are able to synthesize and to assemble an endogenous extracellular matrix (ECM) resulting in tissue micromodules, which evolve their biophysical features over the time. In particular, we found a time-dependent variation of oxygen consumption kinetic parameters, of newly formed ECM stiffness and of micromodules self-aggregation properties. As consequence when used as building blocks to fabricate larger tissues, the initial tissue micromodules state strongly affects the ECM organization and maturation in the final macrotissue. Such results highlight the role of the micromodules properties in controlling the formation of three-dimensional macrotissue in vitro, defining an innovative design criterion for selecting tissue-building blocks for modular tissue engineering. PMID:26824879

  6. Unique Curing Properties through Living Polymerization in Crosslinking Materials: Polyurethane Photopolymers from Vinyl Ether Building Blocks.

    PubMed

    Kirschbaum, Stefan; Landfester, Katharina; Taden, Andreas

    2015-05-01

    Photopolymers with unique curing capabilities were produced by combining living cationic polymerization with network formation and restricted polymer motion. A vinyl ether diol was synthesized as a functional building block and reacted with isophorone diisocyanate to form a highly functionalized vinyl ether polyurethane as a model system with high crosslinking ability. When using a cationic photoinitiator, fast polymerization is observed upon short UV irradiation. Curing proceeds in the absence of light and under ambient conditions without oxygen inhibition. Cationic active sites become trapped dormant species upon network-induced vitrification and surprisingly remain living for several days. The polymerization can be reactivated by additional UV irradiation and/or raised temperature. The curing behavior was studied in detail by using UV and FT-NIR coupled rheology and photo-DSC to simultaneously study spectroscopic and mechanical information, as well as thermal effects. PMID:25776255

  7. 25 CFR 900.58 - Do the same accountability and control procedures described above apply to Federal property?

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ... 25 Indians 2 2010-04-01 2010-04-01 false Do the same accountability and control procedures... UNDER THE INDIAN SELF-DETERMINATION AND EDUCATION ASSISTANCE ACT Standards for Tribal or Tribal... control procedures described above apply to Federal property? Yes, except that requirements for...

  8. 25 CFR 900.58 - Do the same accountability and control procedures described above apply to Federal property?

    Code of Federal Regulations, 2012 CFR

    2012-04-01

    ... 25 Indians 2 2012-04-01 2012-04-01 false Do the same accountability and control procedures... UNDER THE INDIAN SELF-DETERMINATION AND EDUCATION ASSISTANCE ACT Standards for Tribal or Tribal... control procedures described above apply to Federal property? Yes, except that requirements for...

  9. 25 CFR 900.58 - Do the same accountability and control procedures described above apply to Federal property?

    Code of Federal Regulations, 2013 CFR

    2013-04-01

    ... 25 Indians 2 2013-04-01 2013-04-01 false Do the same accountability and control procedures... UNDER THE INDIAN SELF-DETERMINATION AND EDUCATION ASSISTANCE ACT Standards for Tribal or Tribal... control procedures described above apply to Federal property? Yes, except that requirements for...

  10. 25 CFR 900.58 - Do the same accountability and control procedures described above apply to Federal property?

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ... 25 Indians 2 2011-04-01 2011-04-01 false Do the same accountability and control procedures... UNDER THE INDIAN SELF-DETERMINATION AND EDUCATION ASSISTANCE ACT Standards for Tribal or Tribal... control procedures described above apply to Federal property? Yes, except that requirements for...

  11. 25 CFR 900.58 - Do the same accountability and control procedures described above apply to Federal property?

    Code of Federal Regulations, 2014 CFR

    2014-04-01

    ... 25 Indians 2 2014-04-01 2014-04-01 false Do the same accountability and control procedures... UNDER THE INDIAN SELF-DETERMINATION AND EDUCATION ASSISTANCE ACT Standards for Tribal or Tribal... control procedures described above apply to Federal property? Yes, except that requirements for...

  12. 18 CFR 347.1 - Material to support request for newly established or changed property account depreciation studies.

    Code of Federal Regulations, 2013 CFR

    2013-04-01

    ... 18 Conservation of Power and Water Resources 1 2013-04-01 2013-04-01 false Material to support request for newly established or changed property account depreciation studies. 347.1 Section 347.1... REGULATIONS UNDER THE INTERSTATE COMMERCE ACT OIL PIPELINE DEPRECIATION STUDIES § 347.1 Material to...

  13. 18 CFR 347.1 - Material to support request for newly established or changed property account depreciation studies.

    Code of Federal Regulations, 2012 CFR

    2012-04-01

    ... 18 Conservation of Power and Water Resources 1 2012-04-01 2012-04-01 false Material to support request for newly established or changed property account depreciation studies. 347.1 Section 347.1 Conservation of Power and Water Resources FEDERAL ENERGY REGULATORY COMMISSION, DEPARTMENT OF ENERGY REGULATIONS UNDER THE INTERSTATE COMMERCE ACT...

  14. 47 CFR 36.504 - Accumulated depreciation-Property held for future telecommunications use-Account 3200.

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ... 47 Telecommunication 2 2014-10-01 2014-10-01 false Accumulated depreciation-Property held for future telecommunications use-Account 3200. 36.504 Section 36.504 Telecommunication FEDERAL COMMUNICATIONS COMMISSION (CONTINUED) COMMON CARRIER SERVICES JURISDICTIONAL SEPARATIONS PROCEDURES;...

  15. 47 CFR 36.504 - Accumulated depreciation-Property held for future telecommunications use-Account 3200.

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ... 47 Telecommunication 2 2013-10-01 2013-10-01 false Accumulated depreciation-Property held for future telecommunications use-Account 3200. 36.504 Section 36.504 Telecommunication FEDERAL COMMUNICATIONS COMMISSION (CONTINUED) COMMON CARRIER SERVICES JURISDICTIONAL SEPARATIONS PROCEDURES;...

  16. 47 CFR 36.504 - Accumulated depreciation-Property held for future telecommunications use-Account 3200.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... 47 Telecommunication 2 2010-10-01 2010-10-01 false Accumulated depreciation-Property held for future telecommunications use-Account 3200. 36.504 Section 36.504 Telecommunication FEDERAL COMMUNICATIONS COMMISSION (CONTINUED) COMMON CARRIER SERVICES JURISDICTIONAL SEPARATIONS PROCEDURES;...

  17. 47 CFR 36.504 - Accumulated depreciation-Property held for future telecommunications use-Account 3200.

    Code of Federal Regulations, 2012 CFR

    2012-10-01

    ... 47 Telecommunication 2 2012-10-01 2012-10-01 false Accumulated depreciation-Property held for future telecommunications use-Account 3200. 36.504 Section 36.504 Telecommunication FEDERAL COMMUNICATIONS COMMISSION (CONTINUED) COMMON CARRIER SERVICES JURISDICTIONAL SEPARATIONS PROCEDURES;...

  18. 47 CFR 36.504 - Accumulated depreciation-Property held for future telecommunications use-Account 3200.

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ... 47 Telecommunication 2 2011-10-01 2011-10-01 false Accumulated depreciation-Property held for future telecommunications use-Account 3200. 36.504 Section 36.504 Telecommunication FEDERAL COMMUNICATIONS COMMISSION (CONTINUED) COMMON CARRIER SERVICES JURISDICTIONAL SEPARATIONS PROCEDURES;...

  19. Heart Block

    MedlinePlus

    ... Block Explore Heart Block What Is... Electrical System & EKG Results Types Causes Who Is at Risk Signs & ... heart block. Doctors use a test called an EKG (electrocardiogram) to help diagnose heart block. This test ...

  20. Characterization of the optical properties of an infrared blocked impurity band detector.

    PubMed

    Woods, S I; Kaplan, S G; Jung, T M; Carter, A C

    2011-08-20

    Si:As blocked impurity band detectors have been partially deprocessed and measured by Fourier transform spectroscopy to determine their transmittance and reflectance at cryogenic temperatures over the wavelength range 2 μm to 40 μm. A method is presented by which the propagation constants can be extracted from an inversion of the transmittance and reflectance data. The effective propagation constants for the active layer from 2 μm to 20 μm were calculated as well as the absorption cross section of arsenic in silicon, which agrees well with previous results from the literature. The infrared absorptance of the full detector was determined, and the analytical method also provides an estimate of absorption in the active layer alone. Infrared absorptance of the active layer is compared to the quantum yield measured by photoelectric means on similar detectors. The optical methods outlined here, in conjunction with standard electronic measurements, could be used to predict the performance of such detectors from measurements of the blanket films from which they are to be fabricated. PMID:21857706

  1. Characterization of the optical properties of an infrared blocked impurity band detector

    NASA Astrophysics Data System (ADS)

    Woods, S. I.; Kaplan, S. G.; Jung, T. M.; Carter, A. C.

    2011-08-01

    Si:As blocked impurity band detectors have been partially deprocessed and measured by Fourier transform spectroscopy to determine their transmittance and reflectance at cryogenic temperatures over the wavelength range 2 μm to 40 μm. A method is presented by which the propagation constants can be extracted from an inversion of the transmittance and reflectance data. The effective propagation constants for the active layer from 2 μm to 20 μm were calculated as well as the absorption cross section of arsenic in silicon, which agrees well with previous results from the literature. The infrared absorptance of the full detector was determined, and the analytical method also provides an estimate of absorption in the active layer alone. Infrared absorptance of the active layer is compared to the quantum yield measured by photoelectric means on similar detectors. The optical methods outlined here, in conjunction with standard electronic measurements, could be used to predict the performance of such detectors from measurements of the blanket films from which they are to be fabricated.

  2. Comparison of the Fouling Release Properties of Hydrophobic Fluorinated and Hydrophilic PEGylated Block Copolymer Surfaces

    SciTech Connect

    Krishnan,S.; Wang, N.; Ober, C.; Finlay, J.; Callow, M.; Callow, J.; Hexemer, A.; Sohn, K.; Kramer, E.; Fischer, D.

    2006-01-01

    To understand the role of surface wettability in adhesion of cells, the attachment of two different marine algae was studied on hydrophobic and hydrophilic polymer surfaces. Adhesion of cells of the diatom Navicula and sporelings (young plants) of the green macroalga Ulva to an underwater surface is mainly by interactions between the surface and the adhesive exopolymers, which the cells secrete upon settlement and during subsequent colonization and growth. Two types of block copolymers, one with poly(ethylene glycol) side-chains and the other with liquid crystalline, fluorinated side-chains, were used to prepare the hydrophilic and hydrophobic surfaces, respectively. The formation of a liquid crystalline smectic phase in the latter inhibited molecular reorganization at the surface, which is generally an issue when a highly hydrophobic surface is in contact with water. The adhesion strength was assessed by the fraction of settled cells (Navicula) or biomass (Ulva) that detached from the surface in a water flow channel with a wall shear stress of 53 Pa. The two species exhibited opposite adhesion behavior on the same sets of surfaces. While Navicula cells released more easily from hydrophilic surfaces, Ulva sporelings showed higher removal from hydrophobic surfaces. This highlights the importance of differences in cell-surface interactions in determining the strength of adhesion of cells to substrates.

  3. Rheological and Mechanical Properties of Crosslinked Block Copolymer Nanofiber and Polystyrene Blends.

    NASA Astrophysics Data System (ADS)

    Ma, Sungwon; Thio, Yonathan

    2009-03-01

    The mechanical and rheological properties of blends of crosslinked and uncrosslinked poly(styrene)-b-poly(isoprene) copolymer with commercially available polystyrene were studied. Cylindrical morphology of PS-b-PI copolymer was employed for generating nanofiber morphology. Cold vulcanization process using sulfur monochloride (S2Cl2) was used to preserve the morphology. Blends of uncrosslinked PS-b-PI copolymer with neat polystyrene were also prepared. Both blend samples were prepared by solvent casting method with the filler contents varying between 0.5 and 10 wt%. The mechanical and rheological properties were characterized and the microstructures of the fiber and the systems were imaged. The dynamic moduli (G' and G'') of the crosslinked system increased with increasing the fiber content compared to the uncrosslinked system. The results were compared to the rheological model by fitting to Cross-Williamson. This blend study indicated critical volume concentration of nanofiber between 5 and 10 wt% of nanofiber content.

  4. Thermoreversible hydroferrogels with tunable mechanical properties utilizing block copolymer mesophases as template.

    PubMed

    Krekhova, Marina; Lang, Tobias; Richter, Reinhard; Schmalz, Holger

    2010-12-21

    Thermoreversible hydroferrogels (FGs) have been prepared via gelation of aqueous maghemite ferrofluids (FFs) using the triblock copolymer Pluronic P123 as gelator. In the investigated concentration range of 28-42 wt % P123, long-term stable homogeneous FGs can be prepared from FFs with a maximum maghemite content of 14 wt %. For higher FF concentrations up to 29 wt %, however, homogeneous FGs were formed only for gelator contents up to ca. 33 wt %. A combination of rheology and μ-DSC was applied as an alternative method to construct the P123 phase diagram, without the need for visual methods or scattering techniques. Using this procedure, we could show that maghemite nanoparticles can be effectively templated by the cubic and hexagonal P123 mesophases in a concentration range of 33-38 wt % P123 and FF concentrations up to 14 wt %, respectively. Most importantly, the phase behavior and the corresponding phase-transition temperatures of P123 were not significantly altered. As a result, the FGs show a reversible temperature-triggered transition from a cubic hard gel to a hexagonal gel, which is linked with a softening of the gel. Furthermore, this concept can be applied to template cobalt ferrite nanoparticle effectively, too. Magnetization experiments revealed that the superparamagnetic behavior of the maghemite nanoparticles, which show a Néel type relaxation, is not altered in the corresponding FGs. In contrast, FGs based on blocked cobalt ferrite nanoparticles show a hysteretic behavior, which indicates a strong mechanical coupling between the P123 mesophase and the magnetic nanoparticles. PMID:21090823

  5. Preparation and interfacial properties of a novel biodegradable polymer surfactant: poly(ethylene oxide monooleate-block-DL-lactide).

    PubMed

    Nishino, Satoru; Kitamura, Yoshiro; Kishida, Akio; Yoshizawa, Hidekazu

    2005-11-01

    In this paper, we report a novel synthesis of poly(ethylene oxide monooleate-block-DL-lactide) (MOPEO-PLA) in the presence of stannous 2-ethylhexanoate catalyst. By utilizing the surfactant property and the reactive double bond of the amphiphilic MOPEO-PLA, various characteristics of PLA microspheres, such as surface and internal structure, surface morphology, release property, and so on, may potentially be controlled. MOPEO-PLA was found to be hydrophobic enough to prevent loss by dissolution into aqueous solution, which is often a problem for MOPEO. Furthermore, the interfacial tension measurements of a MOPEO-PLA/toluene/water system revealed that MOPEO-PLA had a good surface activity almost equal to that of MOPEO. The MOPEO-PLA/PLA blend films were prepared by solvent casting on a water layer. Contact-angle measurements of MOPEO-PLA/PLA blend films confirmed that the hydrophilic PEO segments were selectivity accumulated at the oil/water interface. Moreover, the surface free energy on the 'water side' of the MOPEO-PLA/PLA blend films was increased because of the increase in polar components as a result of the ether bonds of the PEO segments. Schematic illustration of the adsorption property of a) MOPEO-PLA with a high-molecular-weight PLA segment and b) MOPEO-PLA with a low-molecular-weight PLA segment at an ethyl acetate/water interface. PMID:16245272

  6. Basic properties of a three-dimensional spring-block model with long-range stress transfer

    SciTech Connect

    Jansen, Florian; Hergarten, Stefan

    2006-02-15

    Spring-block models have been very useful for understanding slip complexity of earthquakes. So far, however, they have been restricted to one or two dimensions or simple nearest-neighbor stress transfer. Here, we set up a three-dimensional spring-block model with long-range stress transfer and, in a second step, implement several simplifications to realize a considerable gain in computational efficiency. Qualitatively, the two versions do not differ and we use the fast version to investigate basic properties of the model and to compare to the Olami Feder Christensen (OFC) model. The spatial distribution of hypocenters is found to be scale free. At the end of a simulation of 10{sup 7} events, it takes a value of D{sub 2}{approx_equal}1.8{+-}0.1. At this point, however, the spatial slip organization is not stationary yet and the fractal dimension still grows slightly. This does not affect respective frequency size statistics, though, which exhibit a clear power law with a characteristic cutoff that depends on the grid size. The statistics appear smoother than in the OFC model and lack the kink between events of size 1 and 2. In addition, strong periodicities of large events as in the OFC model do not occur in our model. In stark contrast to the OFC model, results remain the same if periodic boundaries are used. Another significant difference is the stableness of results against imposed disorder. Contrary to the OFC model, results do not change if threshold values are randomly distributed in an interval of {+-}10% around the mean value. Concluding, the model that we propose shares the main properties of the OFC model, but outreaches the latter in being stable in a larger set of configurations.

  7. Property Transmission: An Explanatory Account of the Role of Similarity Information in Causal Inference

    ERIC Educational Resources Information Center

    White, Peter A.

    2009-01-01

    Many kinds of common and easily observed causal relations exhibit property transmission, which is a tendency for the causal object to impose its own properties on the effect object. It is proposed that property transmission becomes a general and readily available hypothesis used to make interpretations and judgments about causal questions under…

  8. Protein based Block Copolymers

    PubMed Central

    Rabotyagova, Olena S.; Cebe, Peggy; Kaplan, David L.

    2011-01-01

    Advances in genetic engineering have led to the synthesis of protein-based block copolymers with control of chemistry and molecular weight, resulting in unique physical and biological properties. The benefits from incorporating peptide blocks into copolymer designs arise from the fundamental properties of proteins to adopt ordered conformations and to undergo self-assembly, providing control over structure formation at various length scales when compared to conventional block copolymers. This review covers the synthesis, structure, assembly, properties, and applications of protein-based block copolymers. PMID:21235251

  9. Using blocking peptides to control and analyze the mechanical properties of single fibrin fibers

    NASA Astrophysics Data System (ADS)

    Maddi, Pranav; O'Brien, E. Tim, III; Gorkun, Oleg; Falvo, Michael R.

    2011-10-01

    Fibrin is the main structural protein involved in blood clotting, and exhibits high strength and elasticity. Fibrin study traditionally focuses on fully formed clots, whereas we employ new AFM nanoManipulation techniques to study single fibrin fiber mechanics. We used 4 and 10 residue peptides to interfere with the knob-hole and αC interactions involved in fibrin polymerization to evaluate the contribution of each interaction to the fiber's mechanical properties. We varied the concentration of each peptide present during polymerization to find the concentration that inhibited polymerization by half. The presence of either peptide during fibrin polymerization did not affect single fiber breaking strain (δLL0). The breaking force of all treated fibers reduced from 10-50nN to 2-10nN, suggesting treated fibers are thinner or are the same diameter with some inhibition of interactions. Fibers polymerized with the knob-hole targeting peptide visibly lost elasticity after 100% strain, while fibers polymerized with the αC targeting peptide lost elasticity after reaching 150% strain, suggesting that the knob-hole interactions control single fiber elasticity.

  10. Phase separation and mechanical properties of an elastomeric biomaterial from spider wrapping silk and elastin block copolymers.

    PubMed

    Muiznieks, Lisa D; Keeley, Fred W

    2016-10-01

    Elastin and silk spidroins are fibrous, structural proteins with elastomeric properties of extension and recoil. While elastin is highly extensible and has excellent recovery of elastic energy, silks are particularly strong and tough. This study describes the biophysical characterization of recombinant polypeptides designed by combining spider wrapping silk and elastin-like sequences as a strategy to rationally increase the strength of elastin-based materials while maintaining extensibility. We demonstrate a thermo-responsive phase separation and spontaneous colloid-like droplet formation from silk-elastin block copolymers, and from a 34 residue disordered region of Argiope trifasciata wrapping silk alone, and measure a comprehensive suite of tensile mechanical properties from cross-linked materials. Silk-elastin materials exhibited significantly increased strength, toughness, and stiffness compared to an elastin-only material, while retaining high failure strains and low energy loss upon recoil. These data demonstrate the mechanical tunability of protein polymer biomaterials through modular, chimeric recombination, and provide structural insights into mechanical design. © 2016 Wiley Periodicals, Inc. Biopolymers 105: 693-703, 2016. PMID:27272259

  11. Lovastatin blocks Kv1.3 channel in human T cells: a new mechanism to explain its immunomodulatory properties

    PubMed Central

    Zhao, Ning; Dong, Qian; Qian, Cheng; Li, Sen; Wu, Qiong-Feng; Ding, Dan; Li, Jing; Wang, Bin-Bin; Guo, Ke-fang; Xie, Jiang-jiao; Cheng, Xiang; Liao, Yu-Hua; Du, Yi-Mei

    2015-01-01

    Lovastatin is a member of Statins, which are beneficial in a lot of immunologic cardiovascular diseases and T cell-mediated autoimmune diseases. Kv1.3 channel plays important roles in the activation and proliferation of T cells, and have become attractive target for immune-related disorders. The present study was designed to examine the block effect of Lovastatin on Kv1.3 channel in human T cells, and to clarify its new immunomodulatory mechanism. We found that Lovastatin inhibited Kv1.3 currents in a concentration- and voltage-dependent manner, and the IC50 for peak, end of the pulse was 39.81 ± 5.11, 6.92 ± 0.95 μM, respectively. Lovastatin also accelerated the decay rate of current inactivation and negatively shifted the steady-state inactivation curves concentration-dependently, without affecting the activation curve. However, 30 μM Lovastatin had no apparent effect on KCa current in human T cells. Furthermore, Lovastatin inhibited Ca2+ influx, T cell proliferation as well as IL-2 production. The activities of NFAT1 and NF-κB p65/50 were down-regulated by Lovastatin, too. At last, Mevalonate application only partially reversed the inhibition of Lovastatin on IL-2 secretion, and the siRNA against Kv1.3 also partially reduced this inhibitory effect of Lovastatin. In conclusion, Lovastatin can exert immunodulatory properties through the new mechanism of blocking Kv1.3 channel. PMID:26616555

  12. Accounting for Accountability.

    ERIC Educational Resources Information Center

    Colorado State Dept. of Education, Denver. Cooperative Accountability Project.

    This publication reports on two Regional Educational Accountability Conferences on Techniques sponsored by the Cooperative Accountability Project. Accountability is described as an "emotionally-charged issue" and an "operationally demanding concept." Overviewing accountability, major speakers emphasized that accountability is a means toward…

  13. 24 CFR 570.511 - Use of escrow accounts for rehabilitation of privately owned residential property.

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ... neighborhood-scale non-residential space within the same structure, if any, e.g., a store front below a... in § 570.500(c), by a public agency designated under § 570.501(a), or by an agent under a procurement contact governed by the requirements of 24 CFR 85.36. No deposit to the escrow account shall be made...

  14. 24 CFR 570.511 - Use of escrow accounts for rehabilitation of privately owned residential property.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ... neighborhood-scale non-residential space within the same structure, if any, e.g., a store front below a... in § 570.500(c), by a public agency designated under § 570.501(a), or by an agent under a procurement contact governed by the requirements of 24 CFR 85.36. No deposit to the escrow account shall be made...

  15. A DEMONSTRATION CENTER TO IMPLEMENT AND TEST THE SCHOOL PROPERTY ACCOUNTING SYSTEM PRESENTED IN HANDBOOK III U.S. DEPARTMENT OF HEALTH, EDUCATION AND WELFARE.

    ERIC Educational Resources Information Center

    BURNHAM, F.R.

    A REPORT ON THE IMPLEMENTING AND TESTING THE USE OF ELECTRONIC DEVICES FOR PROCESSING SCHOOL PROPERTY ACCOUNTING DATA CONSISTS OF PROCEDURAL STEPS FOR COLLECTING DATA PERTAINING TO SCHOOL SITES, BUILDINGS AND EQUIPMENT. DATA WERE COLLECTED TO ESTABLISH COMPLETE ACCOUNTING RECORDS OF SCHOOL PROPERTY AS IT EXISTED IN THE CEDAR RAPIDS, IOWA, SCHOOL…

  16. Testing block subdivision algorithms on block designs

    NASA Astrophysics Data System (ADS)

    Wiseman, Natalie; Patterson, Zachary

    2016-01-01

    Integrated land use-transportation models predict future transportation demand taking into account how households and firms arrange themselves partly as a function of the transportation system. Recent integrated models require parcels as inputs and produce household and employment predictions at the parcel scale. Block subdivision algorithms automatically generate parcel patterns within blocks. Evaluating block subdivision algorithms is done by way of generating parcels and comparing them to those in a parcel database. Three block subdivision algorithms are evaluated on how closely they reproduce parcels of different block types found in a parcel database from Montreal, Canada. While the authors who developed each of the algorithms have evaluated them, they have used their own metrics and block types to evaluate their own algorithms. This makes it difficult to compare their strengths and weaknesses. The contribution of this paper is in resolving this difficulty with the aim of finding a better algorithm suited to subdividing each block type. The proposed hypothesis is that given the different approaches that block subdivision algorithms take, it's likely that different algorithms are better adapted to subdividing different block types. To test this, a standardized block type classification is used that consists of mutually exclusive and comprehensive categories. A statistical method is used for finding a better algorithm and the probability it will perform well for a given block type. Results suggest the oriented bounding box algorithm performs better for warped non-uniform sites, as well as gridiron and fragmented uniform sites. It also produces more similar parcel areas and widths. The Generalized Parcel Divider 1 algorithm performs better for gridiron non-uniform sites. The Straight Skeleton algorithm performs better for loop and lollipop networks as well as fragmented non-uniform and warped uniform sites. It also produces more similar parcel shapes and patterns.

  17. A Fluid Block Schedule

    ERIC Educational Resources Information Center

    Ubben, Gerald C.

    1976-01-01

    Achieving flexibility without losing student accountability is a challenge that faces every school. With a fluid block schedule, as described here, accountability is maintained without inhibiting flexibility. An additional advantage is that three levels of schedule decision making take some of the pressure off the principal. (Editor)

  18. Correlating bulk properties and nanoscale rearrangement during UV-initiated gelation of hybrid nanoparticle/ block copolymer systems

    NASA Astrophysics Data System (ADS)

    Juggernauth, K. Anne; Seifert, Soenke; Love, Brian

    2013-03-01

    We use rheology and Small Angle X-Ray Scattering (SAXS) to investigate UV initiated gel formation in aqueous dispersions of clay nanoparticles in the presence of poly(ethyleneoxide-b-propyleneoxide-b-ethyleneoxide) block copolymer surfactants (Pluronics®) and small amounts of a photoacid generator (PAG). This material system demonstrates stable liquid-like behavior in the absence of UV but undergoes bulk gelation upon UV exposure. Rheology was used to monitor the bulk properties of a series of samples undergoing UV exposure and confirm bulk gel formation. We further probe nanoparticle rearrangement using time resolved synchrotron SAXS with simultaneous UV exposure. Time dependent SAXS indicate an absence of long range order and crystallinity while changes in the scattering profile are related to short range interparticle interactions leading to a stable or arrested structure. Finally, we compare the time scales for structural rearrangement of nanoparticles with the bulk gelation behavior. Our results show that the kinetics for local structural changes between particles and bulk gelation from UV exposure are strongly correlated.

  19. Chemical Analysis and Aqueous Solution Properties of Charged Amphiphilic Block Copolymers PBA-b-PAA Synthesized by MADIX

    SciTech Connect

    Jacquin,M.; Muller, P.; Talingting-Pabalan, R.; Cottet, H.; Berret, J.; Futterer, T.; Theodoly, O.

    2007-01-01

    We have linked the structural and dynamic properties in aqueous solution of amphiphilic charged diblock copolymers poly(butyl acrylate)-b-poly(acrylic acid), PBA-b-PAA, synthesized by controlled radical polymerization, with the physico-chemical characteristics of the samples. Despite product imperfections, the samples self-assemble in melt and aqueous solutions as predicted by monodisperse microphase separation theory. However, the PBA core are abnormally large; the swelling of PBA cores is not due to AA (the Flory parameter ?PBA/PAA, determined at 0.25, means strong segregation), but to h-PBA homopolymers (content determined by liquid chromatography at the point of exclusion and adsorption transition, LC-PEAT). Beside the dominant population of micelles detected by scattering experiments, capillary electrophoresis CE analysis permitted detection of two other populations, one of h-PAA, and the other of free PBA-b-PAA chains, that have very short PBA blocks and never self-assemble. Despite the presence of these free unimers, the self-assembly in solution was found out of equilibrium: the aggregation state is history dependant and no unimer exchange between micelles occurs over months (time-evolution SANS). The high PBA/water interfacial tension, measured at 20 mN/m, prohibits unimer exchange between micelles. PBA-b-PAA solution systems are neither at thermal equilibrium nor completely frozen systems: internal fractionation of individual aggregates can occur.

  20. 48 CFR 1852.245-71 - Installation-accountable Government property.

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ... the requirements of the clause at FAR 52.245-1, as incorporated in this contract. The Contractor shall... compliance with these user responsibilities. In accordance with FAR 52.245-1(h)(1) the contractor shall be... titled property as required by FAR 52.245-1, as incorporated in this contract, and shall maintain...

  1. 48 CFR 1852.245-71 - Installation-accountable Government property.

    Code of Federal Regulations, 2012 CFR

    2012-10-01

    ... the requirements of the clause at FAR 52.245-1, as incorporated in this contract. The Contractor shall... compliance with these user responsibilities. In accordance with FAR 52.245-1(h)(1) the contractor shall be... titled property as required by FAR 52.245-1, as incorporated in this contract, and shall maintain...

  2. 48 CFR 1852.245-71 - Installation-accountable Government property.

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ... the requirements of the clause at FAR 52.245-1, as incorporated in this contract. The Contractor shall... compliance with these user responsibilities. In accordance with FAR 52.245-1(h)(1) the contractor shall be... titled property as required by FAR 52.245-1, as incorporated in this contract, and shall maintain...

  3. Designing poly[(R)-3-hydroxybutyrate]-based polyurethane block copolymers for electrospun nanofiber scaffolds with improved mechanical properties and enhanced mineralization capability.

    PubMed

    Liu, Kerh Li; Choo, Eugene Shi Guang; Wong, Siew Yee; Li, Xu; He, Chao Bin; Wang, John; Li, Jun

    2010-06-10

    Efforts to mineralize electrospun hydrophobic polyester scaffold often require prior surface modification such as plasma or alkaline treatment, which may affect the mechanical integrity of the resultant scaffold. Here through rational design we developed a series of polyurethane block copolymers containing poly[(R)-3-hydroxybutyrate] (PHB) as hard segment and poly(ethylene glycol) (PEG) as soft segment that could be easily fabricated into mineralizable electrospun scaffold without the need of additional surface treatment. To ensure that the block copolymers do not swell excessively in water, PEG content in the polymers was kept below 50 wt %. To obtain good dry and hydrated state mechanical properties with limited PEG, low-molecular-weight PHB-diol with M(n) 1230 and 1790 were used in various molar feed ratios. The macromolecular characteristics of the block copolymers were confirmed by (1)H NMR spectroscopy, gel permeation chromatography (GPC), and thermal gravimetric analyses (TGA). With the incorporation of the hydrophilic PEG segments, the surface and bulk hydrophilicity of the block copolymers were significantly improved. Differential scanning calorimetry (DSC) revealed that the block copolymers had low PHB crystallinity and no PEG crystallinity. This was further confirmed by X-ray diffraction analyses (XRD) in both dry and hydrated states. With short PHB segments and soft PEG coupled together, the block copolymers were no longer brittle. Tensile measurements showed that the block copolymers with higher PEG content or shorter PHB segments were more ductile. Furthermore, their ductility was enhanced in hydrated states with one particular example showing increment in strain at break from 1090 to 1962%. The block copolymers were fabricated into an electrospun fibrous scaffold that was easily mineralized by simple incubation in simulated body fluid. The materials have good potential for bone regeneration application and may be extended to other applications by

  4. Preparations, Properties, and Applications of Periodic Nano Arrays using Anodized Aluminum Oxide and Di-block Copolymer

    NASA Astrophysics Data System (ADS)

    Noh, Kunbae

    2011-12-01

    Self-ordered arrangements observed in various materials systems such as anodic aluminum oxide, polystyrene nanoparticles, and block copolymer are of great interest in terms of providing new opportunities in nanofabrication field where lithographic techniques are broadly used in general. Investigations on self-assembled nano arrays to understand how to obtain periodic nano arrays in an efficient yet inexpensive way, and how to realize advanced material and device systems thereof, can lead to significant impacts on science and technology for many forefront device applications. In this thesis, various aspects of periodic nano-arrays have been discussed including novel preparations, properties and applications of anodized aluminum oxide (AAO) and PS-b-P4VP (S4VP) di-block copolymer self-assembly. First, long-range ordered AAO arrays have been demonstrated. Nanoimprint lithography (NIL) process allowed a faithful pattern transfer of the imprint mold pattern onto Al thin film, and interesting self-healing and pattern tripling phenomena were observed, which could be applicable towards fabrication of the NIL master mold having highly dense pattern over large area, useful for fabrication of a large-area substrate for predictable positioning of arrayed devices. Second, S4VP diblock copolymer self-assembly and S4VP directed AAO self-assembly have been demonstrated in the Al thin film on Si substrate. Such a novel combination of two dissimilar self-assembly techniques demonstrated a potential as a versatile tool for nanopatterning formation on a Si substrate, capable of being integrated into Si process technology. As exemplary applications, vertically aligned Ni nanowires have been synthesized into an S4VP-guided AAO membrane on a Si substrate in addition to anti-dot structured [Co/Pd]n magnetic multilayer using S4VP self assembly. Third, a highly hexagonally ordered, vertically parallel aluminum oxide nanotube array was successfully fabricated via hard anodization technique

  5. Effective Transport Properties Accounting for Electrochemical Reactions of Proton-Exchange Membrane Fuel Cell Catalyst Layers

    SciTech Connect

    Pharoah, Jon; Choi, Hae-Won; Chueh, Chih-Che; Harvey, David

    2011-07-01

    There has been a rapidly growing interest in three-dimensional micro-structural reconstruction of fuel cell electrodes so as to derive more accurate descriptors of the pertinent geometric and effective transport properties. Due to the limited accessibility of experiments based reconstruction techniques, such as dual-beam focused ion beam-scanning electro microscopy or micro X-Ray computed tomography, within sample micro-structures of the catalyst layers in polymer electrolyte membrane fuel cells (PEMFCs), a particle based numerical model is used in this study to reconstruct sample microstructure of the catalyst layers in PEMFCs. Then the reconstructed sample structure is converted into the computational grid using body-fitted/cut-cell based unstructured meshing technique. Finally, finite volume methods (FVM) are applied to calculate effective properties on computational sample domains.

  6. Accounting for the analytical properties of the quark propagator from the Dyson-Schwinger equation

    NASA Astrophysics Data System (ADS)

    Dorkin, S. M.; Kaptari, L. P.; Kämpfer, B.

    2015-05-01

    An approach based on combined solutions of the Bethe-Salpeter (BS) and Dyson-Schwinger (DS) equations within the ladder-rainbow approximation in the presence of singularities is proposed to describe the meson spectrum as quark-antiquark bound states. We consistently implement in the BS equation the quark propagator functions from the DS equation, with and without pole-like singularities, and show that, by knowing the precise positions of the poles and their residues, one is able to develop reliable methods of obtaining finite interaction BS kernels and to solve the BS equation numerically. We show that, for bound states with masses M <1 GeV, there are no singularities in the propagator functions when employing the infrared part of the Maris-Tandy kernel in truncated BS-DS equations. For M >1 GeV, however, the propagator functions reveal pole-like structures. Consequently, for each type of meson (unflavored, strange, and charmed) we analyze the relevant intervals of M where the pole-like singularities of the corresponding quark propagator influence the solution of the BS equation and develop a framework within which they can be consistently accounted for. The BS equation is solved for pseudoscalar and vector mesons. Results are in good agreement with experimental data. Our analysis is directly related to the future physics program at FAIR with respect to open charm degrees of freedom.

  7. Accounting for the elastic properties of viscoplastic lubricant between coaxial rotating cylinders

    NASA Astrophysics Data System (ADS)

    Begun, A. S.; Burenin, A. A.; Zhilin, S. G.; Kovtanyuk, L. V.

    2015-05-01

    This paper presents a solution of the boundary-value problem of the stress-strain state of a friction unit placed in the gap between rigid rotating cylinders. It is assumed that the two-layer incompressible material of these unit has elastic, viscous, and plastic properties and different values of the elastic moduli, stress limit, and viscosity. The conditions of the occurrence of viscoplastic flow, motion of the elastoplastic boundary in a deformable medium, and interaction of the latter with the contact boundary of the materials were determined. Limiting values of the characteristic rotation parameters at which the damping layer of the friction unit is not deformed plastically are given. The velocity and stress fields for acceleration and deceleration of the lubricant flow are calculated.

  8. Accounting for the dispersion in the x ray properties of early-type galaxies

    NASA Technical Reports Server (NTRS)

    White, Raymond E., III; Sarazin, Craig L.

    1990-01-01

    The x ray luminosities of early-type galaxies are correlated with their optical (e.g., blue) luminosities (L sub X approx. L sub B exp 1.6), but the x ray luminosities exhibit considerable scatter for a given optical luminosity L sub B. This dispersion in x ray luminosity is much greater than the dispersion of other properties of early-type galaxies (for a given L sub B), such as luminosity scale-length, velocity dispersion, color, and metallicity. Here, researchers consider several possible sources for the dispersion in x ray luminosity. Some of the scatter in x ray luminosity may result from stellar population variations between galaxies with similar L sub B. Since the x ray emitting gas is from accumulated stellar mass loss, the L sub X dispersion may be due to variations in integrated stellar mass loss rates. Another possible cause of the L sub X dispersion may be variations in the amount of cool material in the galaxies; cool gas may act as an energy sink for the hot gas. Infrared emission may be used to trace such cool material, so researchers look for a correlation between the infrared emission and the x ray emission of early-type galaxies at fixed L sub B. Velocity dispersion variations between galaxies of similar L sub B may also contribute to the L sub X dispersion. The most likely a priori source of the dispersion in L sub X is probably the varying amount of ram-pressure stripping in a range of galaxy environments. The hot gaseous halos of early-type galaxies can be stripped in encounters with other galaxies or with ambient cluster gas if the intracluster gas is sufficiently dense. Researchers find that the most likely cause of dispersion in the x ray properties of early type galaxies is probably the ram-pressure stripping of gaseous halos from galaxies. For a sample of 81 early-type galaxies with x ray luminosities or upper limits derived from Einstein Observatory observations (CFT) researchers calculated the cumulative distribution of angular distances

  9. Population Blocks.

    ERIC Educational Resources Information Center

    Smith, Martin H.

    1992-01-01

    Describes an educational game called "Population Blocks" that is designed to illustrate the concept of exponential growth of the human population and some potential effects of overpopulation. The game material consists of wooden blocks; 18 blocks are painted green (representing land), 7 are painted blue (representing water); and the remaining…

  10. 31 CFR 597.303 - Blocked account; blocked funds.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ...) OFFICE OF FOREIGN ASSETS CONTROL, DEPARTMENT OF THE TREASURY FOREIGN TERRORIST ORGANIZATIONS SANCTIONS... a foreign terrorist organization or its agent or in which a foreign terrorist organization or...

  11. 31 CFR 597.303 - Blocked account; blocked funds.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ...) OFFICE OF FOREIGN ASSETS CONTROL, DEPARTMENT OF THE TREASURY FOREIGN TERRORIST ORGANIZATIONS SANCTIONS... a foreign terrorist organization or its agent or in which a foreign terrorist organization or...

  12. 31 CFR 597.303 - Blocked account; blocked funds.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ...) OFFICE OF FOREIGN ASSETS CONTROL, DEPARTMENT OF THE TREASURY FOREIGN TERRORIST ORGANIZATIONS SANCTIONS... a foreign terrorist organization or its agent or in which a foreign terrorist organization or...

  13. 31 CFR 597.303 - Blocked account; blocked funds.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ...) OFFICE OF FOREIGN ASSETS CONTROL, DEPARTMENT OF THE TREASURY FOREIGN TERRORIST ORGANIZATIONS SANCTIONS... a foreign terrorist organization or its agent or in which a foreign terrorist organization or...

  14. 31 CFR 597.303 - Blocked account; blocked funds.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ...) OFFICE OF FOREIGN ASSETS CONTROL, DEPARTMENT OF THE TREASURY FOREIGN TERRORIST ORGANIZATIONS SANCTIONS... a foreign terrorist organization or its agent or in which a foreign terrorist organization or...

  15. 49 CFR 1242.30 - Dismantling retired road property and depreciation (accounts XX-17-39, XX-18-39, XX-19-39, 62-17...

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ... 49 Transportation 9 2011-10-01 2011-10-01 false Dismantling retired road property and depreciation (accounts XX-17-39, XX-18-39, XX-19-39, 62-17-00, 62-18-00, and 62-19-00). 1242.30 Section 1242.30....30 Dismantling retired road property and depreciation (accounts XX-17-39, XX-18-39, XX-19-39,...

  16. 49 CFR 1242.30 - Dismantling retired road property and depreciation (accounts XX-17-39, XX-18-39, XX-19-39, 62-17...

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... 49 Transportation 9 2010-10-01 2010-10-01 false Dismantling retired road property and depreciation (accounts XX-17-39, XX-18-39, XX-19-39, 62-17-00, 62-18-00, and 62-19-00). 1242.30 Section 1242.30....30 Dismantling retired road property and depreciation (accounts XX-17-39, XX-18-39, XX-19-39,...

  17. 49 CFR 1242.30 - Dismantling retired road property and depreciation (accounts XX-17-39, XX-18-39, XX-19-39, 62-17...

    Code of Federal Regulations, 2012 CFR

    2012-10-01

    ... 49 Transportation 9 2012-10-01 2012-10-01 false Dismantling retired road property and depreciation (accounts XX-17-39, XX-18-39, XX-19-39, 62-17-00, 62-18-00, and 62-19-00). 1242.30 Section 1242.30....30 Dismantling retired road property and depreciation (accounts XX-17-39, XX-18-39, XX-19-39,...

  18. 49 CFR 1242.30 - Dismantling retired road property and depreciation (accounts XX-17-39, XX-18-39, XX-19-39, 62-17...

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ... 49 Transportation 9 2014-10-01 2014-10-01 false Dismantling retired road property and depreciation (accounts XX-17-39, XX-18-39, XX-19-39, 62-17-00, 62-18-00, and 62-19-00). 1242.30 Section 1242.30....30 Dismantling retired road property and depreciation (accounts XX-17-39, XX-18-39, XX-19-39,...

  19. 49 CFR 1242.30 - Dismantling retired road property and depreciation (accounts XX-17-39, XX-18-39, XX-19-39, 62-17...

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ... 49 Transportation 9 2013-10-01 2013-10-01 false Dismantling retired road property and depreciation (accounts XX-17-39, XX-18-39, XX-19-39, 62-17-00, 62-18-00, and 62-19-00). 1242.30 Section 1242.30....30 Dismantling retired road property and depreciation (accounts XX-17-39, XX-18-39, XX-19-39,...

  20. Physicochemical properties of pH-controlled polyion complex (PIC) micelles of poly(acrylic acid)-based double hydrophilic block copolymers and various polyamines.

    PubMed

    Warnant, J; Marcotte, N; Reboul, J; Layrac, G; Aqil, A; Jerôme, C; Lerner, D A; Gérardin, C

    2012-05-01

    The physicochemical properties of polyion complex (PIC) micelles were investigated in order to characterize the cores constituted of electrostatic complexes of two oppositely charged polyelectrolytes. The pH-sensitive micelles were obtained with double hydrophilic block copolymers containing a poly(acrylic acid) block linked to a modified poly(ethylene oxide) block and various polyamines (polylysine, linear and branched polyethyleneimine, polyvinylpyridine, and polyallylamine). The pH range of micellization in which both components are ionized was determined for each polyamine. The resulting PIC micelles were characterized using dynamic light scattering and small-angle X-ray scattering experiments (SAXS). The PIC micelles presented a core-corona nanostructure with variable polymer density contrasts between the core and the corona, as revealed by the analysis of the SAXS curves. It was shown that PIC micelle cores constituted by polyacrylate chains and polyamines were more or less dense depending on the nature of the polyamine. It was also determined that the density of the cores of the PIC micelles depended strongly on the nature of the polyamine. These homogeneous cores were surrounded by a large hairy corona of hydrated polyethylene oxide block chains. Auramine O (AO) was successfully entrapped in the PIC micelles, and its fluorescence properties were used to get more insight on the core properties. Fluorescence data confirmed that the cores of such micelles are quite compact and that their microviscosity depended on the nature of the polyamine. The results obtained on these core-shell micelles allow contemplating a wide range of applications in which the AO probe would be replaced by various cationic drugs or other similarly charged species to form drug nanocarriers or new functional nanodevices. PMID:22453608

  1. Properties of Transmission and Leaky Modes in a Plasmonic Waveguide Constructed by Periodic Subwavelength Metallic Hollow Blocks

    PubMed Central

    Jei Wu, Jin; Jang Wu, Chien; Qi Shen, Jian; Hou, Da Jun; Chen Lo, Wen

    2015-01-01

    Based on the concept of low-frequency spoof surface plasmon polaritons (spoof SPPs), a kind of leaky mode is proposed in a waveguide made of a subwavelength metal-block array with open slots. Numerical results reveal that a new transmission mode is found in the periodic subwavelength metal open blocks. This modal field is located inside the interior of a hollow block compared with that in a solid metal block array. The dispersion curve shows that such a new SPPs mode has a negative slope, crossing the light line, and then going into a zone of leaky mode at higher frequencies. The leaky mode has a wider frequency bandwidth, and this can lead to a radiation scanning angle of 53° together with high radiation efficiency. Based on the individual characteristics exhibited by a frequency-dependent radiation pattern for the present leaky mode, the waveguide structure can have potential applications such as frequency dividers and demultiplexers. Experimental verification of such a leaky mode at microwave has been performed, and the experimental results are found to be consistent with the theoretical analysis. PMID:26403387

  2. Properties of Transmission and Leaky Modes in a Plasmonic Waveguide Constructed by Periodic Subwavelength Metallic Hollow Blocks.

    PubMed

    Wu, Jin Jei; Wu, Chien Jang; Shen, Jian Qi; Hou, Da Jun; Lo, Wen Chen

    2015-01-01

    Based on the concept of low-frequency spoof surface plasmon polaritons (spoof SPPs), a kind of leaky mode is proposed in a waveguide made of a subwavelength metal-block array with open slots. Numerical results reveal that a new transmission mode is found in the periodic subwavelength metal open blocks. This modal field is located inside the interior of a hollow block compared with that in a solid metal block array. The dispersion curve shows that such a new SPPs mode has a negative slope, crossing the light line, and then going into a zone of leaky mode at higher frequencies. The leaky mode has a wider frequency bandwidth, and this can lead to a radiation scanning angle of 53° together with high radiation efficiency. Based on the individual characteristics exhibited by a frequency-dependent radiation pattern for the present leaky mode, the waveguide structure can have potential applications such as frequency dividers and demultiplexers. Experimental verification of such a leaky mode at microwave has been performed, and the experimental results are found to be consistent with the theoretical analysis. PMID:26403387

  3. Ionic Blocks

    ERIC Educational Resources Information Center

    Sevcik, Richard S.; Gamble, Rex; Martinez, Elizabet; Schultz, Linda D.; Alexander, Susan V.

    2008-01-01

    "Ionic Blocks" is a teaching tool designed to help middle school students visualize the concepts of ions, ionic compounds, and stoichiometry. It can also assist high school students in reviewing their subject mastery. Three dimensional blocks are used to represent cations and anions, with color indicating charge (positive or negative) and size…

  4. Enhancing Energetic Properties and Sensitivity by Incorporating Amino and Nitramino Groups into a 1,2,4-Oxadiazole Building Block.

    PubMed

    Tang, Yongxing; Gao, Haixiang; Mitchell, Lauren A; Parrish, Damon A; Shreeve, Jean'ne M

    2016-01-18

    A single nitrogen-rich heterocyclic ring with many energetic groups is expected to exhibit excellent detonation performance. We report an effective approach for the synthesis of 3-amino-5-nitramino-1,2,4-oxadiazole, which has nitramino and amino groups in the same building block. The single-crystal X-ray structure shows layered hydrogen-bonding pairs as well as the presence of a water molecule which ensure insensitivity. Through incorporation of a cation, the hydrazinium or hydroxylammonium salts exhibit good energetic performance and acceptable sensitivities. PMID:26617389

  5. Synthesis and characterization of a disubstituted piperazine derivative with T-type channel blocking action and analgesic properties

    PubMed Central

    Pudukulatham, Zubaidha; Zhang, Fang-Xiong; Gadotti, Vinicius M; M’Dahoma, Said; Swami, Prabhuling; Tamboli, Yasinalli

    2016-01-01

    Background T-type calcium channels are important contributors to signaling in the primary afferent pain pathway and are thus important targets for the development of analgesics. It has been previously reported that certain piperazine-based compounds such as flunarizine are able to inhibit T-type calcium channels. Thus, we hypothesized that novel piperazine compounds could potentially act as analgesics. Results Here, we have created a series of 14 compound derivatives around a diphenyl methyl-piperazine core pharmacophore. Testing their effects on transiently expressed Cav3.2 calcium channels revealed one derivative (3-((4-(bis(4-fluorophenyl)methyl)piperazin-1-yl)methyl)-4-(2-methoxyphenyl)-1,2,5-oxadiazole 2-oxide, compound 10e) as a potent blocker. 10e mediate tonic block of these channels with an IC50 of around 4 micromolar. 10e also blocked Cav3.1 and Cav3.3 channels, but only weakly affected high-voltage-activated Cav1.2 and Cav2.2 channels. Intrathecal delivery of 10e mediated relief from formalin and complete Freund’s adjuvant induced inflammatory pain that was ablated by genetic knockout of Cav3.2 channels. Conclusions Altogether, our data identify a novel T-type calcium channel blocker with tight structure activity relationship (SAR) and relevant in vivo efficacy in inflammatory pain conditions. PMID:27053601

  6. Effect of molecular properties of block copolymers and nanoparticles on the morphology of self-assembled bulk nanocomposites.

    SciTech Connect

    Lo, C.-T.; Lee, B.; Dietz Rago, N. L.; Seifert, S.; Winans, R. E.; Thiyagarajan, P.

    2007-11-13

    Self-assembly of thiol-terminated polystyrene-tethered Au nanoparticles in microphase-separated diblock copolymers composed of poly(styrene-b-2vinylpyridine) (PS-PVP) as a function of particle concentration and composition of block copolymers was investigated using anomalous small-angle X-ray scattering (ASAXS) and transmission electron microscopy (TEM). Results reveal that the self-assembly of nanoparticles in the PS domain causes swelling and increases the interfacial curvature that, in turn, induces order-order transitions. At intermediate loading, the presence of nanoparticles amplifies the local compositional fluctuations, hence the roughness at the PS and PVP interface, which creates conditions to induce disorder in the polymer morphology. The system thus undergoes an order-disorder transition. At high particle loading, packing constraints prevent all particles from assembling in the PS domain, and the excess nanoparticles undergo macrophase separation. The present systematic study augments experimental data to the scarce literature on the phase behavior of bulk nanocomposites. We present a generalized phase map for the bulk composites as a function of effective volume fraction of PS (F{sub PS}) for a given nanoparticle size. We believe that the results from this study will enable comparison of the phase maps from various studies and will serve to validate the simulation studies of inorganic particle/block copolymer composites.

  7. Effects of temperature, packaging and electron beam irradiation processing conditions on the property behaviour of Poly (ether-block-amide) blends.

    PubMed

    Murray, Kieran A; Kennedy, James E; McEvoy, Brian; Vrain, Olivier; Ryan, Damien; Cowman, Richard; Higginbotham, Clement L

    2014-06-01

    The radiation stability of Poly (ether-block-amide) (PEBA) blended with a multifunctional phenolic antioxidant and a hindered amide light stabiliser was examined under various temperatures, packaging and electron beam processing conditions. FTIR revealed that there were slight alterations to the PEBA before irradiation; however, these became more pronounced following irradiation. The effect of varying the temperature, packaging and processing conditions on the resultant PEBA properties was apparent. For example, rheology demonstrated that the structural properties could be enhanced by manipulating the aforementioned criteria. Mechanical testing exhibited less radiation resistance when the PEBA samples were vacuum packed and exposed to irradiation. MFI and AFM confirmed that the melting strength and surface topography could be reduced/increased depending on the conditions employed. From this study it was concluded that virgin PEBA submerged in dry ice with non-vacuum packaging during the irradiation process, provided excellent radiation resistance (20.9% improvement) in contrast to the traditional method. PMID:24863239

  8. Superalloy Lattice Block Structures

    NASA Technical Reports Server (NTRS)

    Nathal, M. V.; Whittenberger, J. D.; Hebsur, M. G.; Kantzos, P. T.; Krause, D. L.

    2004-01-01

    Initial investigations of investment cast superalloy lattice block suggest that this technology will yield a low cost approach to utilize the high temperature strength and environmental resistance of superalloys in lightweight, damage tolerant structural configurations. Work to date has demonstrated that relatively large superalloy lattice block panels can be successfully investment cast from both IN-718 and Mar-M247. These castings exhibited mechanical properties consistent with the strength of the same superalloys measured from more conventional castings. The lattice block structure also accommodates significant deformation without failure, and is defect tolerant in fatigue. The potential of lattice block structures opens new opportunities for the use of superalloys in future generations of aircraft applications that demand strength and environmental resistance at elevated temperatures along with low weight.

  9. Accounting for particle non-sphericity in modeling of mineral dust radiative properties in the thermal infrared

    NASA Astrophysics Data System (ADS)

    Legrand, M.; Dubovik, O.; Lapyonok, T.; Derimian, Y.

    2014-12-01

    Spectral radiative parameters (extinction optical depth, single scattering albedo, asymmetry factor) of spheroids of mineral dust composed of quartz and clays have been simulated at wavelengths between 7.0 and 10.2 μm using a T-matrix code. In spectral intervals with high values of complex index of refraction and for large particles, the parameters cannot be fully calculated with the code. Practically, the calculations are stopped at a truncation radius over which the particles contribution cannot thus be taken into account. To deal with this issue, we have developed and applied an accurate corrective technique of T-matrix Size Truncation Compensation (TSTC). For a mineral dust described by its AERONET standard aspect ratio (AR) distribution, the full error margin when applying the TSTC is within 0.3% (or ±0.15%), whatever the radiative parameter and the wavelength considered, for quartz (the most difficult case). Large AR values limit also the possibilities of calculation with the code. The TSTC has been able to complete the calculations of the T-matrix code for a modified AERONET AR distribution with a maximum AR of 4.7 instead of 3 for the standard distribution. Comparison between the simulated properties of spheroids and of spheres of same volume confirms, in agreement with the literature, that significant differences are observed in the vicinity of the mineral resonant peaks (λ ca. 8.3-8.7 μm for quartz, ca. 9.3-9.5 μm for clays) and that they are due to absorption by the small particles. This is a favorable circumstance for the TSTC, which is concerned with the contribution of the largest particles. This technique of numerical calculation improves the accuracy of the simulated radiative parameters of mineral dust, which must lead to a progress in view of applications such as remote sensing or determination of energy balance of dust in the thermal infrared (TIR), incompletely investigated so far.

  10. 26 CFR 1.468B-6 - Escrow accounts, trusts, and other funds used during deferred exchanges of like-kind property...

    Code of Federal Regulations, 2013 CFR

    2013-04-01

    ... 26 Internal Revenue 6 2013-04-01 2013-04-01 false Escrow accounts, trusts, and other funds used during deferred exchanges of like-kind property under section 1031(a)(3). 1.468B-6 Section 1.468B-6 Internal Revenue INTERNAL REVENUE SERVICE, DEPARTMENT OF THE TREASURY (CONTINUED) INCOME TAX (CONTINUED) INCOME TAXES (CONTINUED) Taxable Year for...

  11. 26 CFR 1.468B-6 - Escrow accounts, trusts, and other funds used during deferred exchanges of like-kind property...

    Code of Federal Regulations, 2012 CFR

    2012-04-01

    ... 26 Internal Revenue 6 2012-04-01 2012-04-01 false Escrow accounts, trusts, and other funds used during deferred exchanges of like-kind property under section 1031(a)(3). 1.468B-6 Section 1.468B-6 Internal Revenue INTERNAL REVENUE SERVICE, DEPARTMENT OF THE TREASURY (CONTINUED) INCOME TAX (CONTINUED) INCOME TAXES (CONTINUED) Taxable Year for...

  12. Electrospun nanofibrous scaffolds of segmented polyurethanes based on PEG, PLLA and PTMC blocks: Physico-chemical properties and morphology.

    PubMed

    Trinca, Rafael Bergamo; Abraham, Gustavo A; Felisberti, Maria Isabel

    2015-11-01

    Biocompatible polymeric scaffolds are crucial for successful tissue engineering. Biomedical segmented polyurethanes (SPUs) are an important and versatile class of polymers characterized by a broad spectrum of compositions, molecular architectures, properties and applications. Although SPUs are versatile materials that can be designed by different routes to cover a wide range of properties, they have been infrequently used for the preparation of electrospun nanofibrous scaffolds. This study reports the preparation of new electrospun polyurethane scaffolds. The segmented polyurethanes were synthesized using low molar masses macrodyols (poly(ethylene glycol), poly(l-lactide) and poly(trimethylene carbonate)) and 1,6-hexane diisocyanate and 1,4-butanodiol as isocyanate and chain extensor, respectively. Different electrospinning parameters such as solution properties and processing conditions were evaluated to achieve smooth, uniform bead-free fibers. Electrospun micro/nanofibrous structures with mean fiber diameters ranging from 600nm to 770nm were obtained by varying the processing conditions. They were characterized in terms of thermal and dynamical mechanical properties, swelling degree and morphology. The elastomeric polyurethane scaffolds exhibit interesting properties that could be appropriate as biomimetic matrices for soft tissue engineering applications. PMID:26249621

  13. Anion conductive block poly(arylene ether)s: synthesis, properties, and application in alkaline fuel cells.

    PubMed

    Tanaka, Manabu; Fukasawa, Keita; Nishino, Eriko; Yamaguchi, Susumu; Yamada, Koji; Tanaka, Hirohisa; Bae, Byungchan; Miyatake, Kenji; Watanabe, Masahiro

    2011-07-13

    Anion conductive aromatic multiblock copolymers, poly(arylene ether)s containing quaternized ammonio-substituted fluorene groups, were synthesized via block copolycondensation of fluorene-containing (later hydrophilic) oligomers and linear hydrophobic oligomers, chloromethylation, quaternization, and ion-exchange reactions. The ammonio groups were selectively introduced onto the fluorene-containing units. The quaternized multiblock copolymers (QPEs) produced ductile, transparent membranes. A well-controlled multiblock structure was responsible for the developed hydrophobic/hydrophilic phase separation and interconnected ion transporting pathway, as confirmed by scanning transmission electron microscopic (STEM) observation. The ionomer membranes showed considerably higher hydroxide ion conductivities, up to 144 mS/cm at 80 °C, than those of existing anion conductive ionomer membranes. The durabilities of the QPE membranes were evaluated under severe, accelerated-aging conditions, and minor degradation was recognized by (1)H NMR spectra. The QPE membrane retained high conductivity in hot water at 80 °C for 5000 h. A noble metal-free direct hydrazine fuel cell was operated with the QPE membrane at 80 °C. The maximum power density, 297 mW/cm(2), was achieved at a current density of 826 mA/cm(2). PMID:21657275

  14. Effects of electron beam irradiation on the property behaviour of poly(ether-block-amide) blended with various stabilisers

    NASA Astrophysics Data System (ADS)

    Murray, Kieran A.; Kennedy, James E.; Barron, Valerie; McEvoy, Brian; Vrain, Olivier; Ryan, Damien; Cowman, Richard; Higginbotham, Clement L.

    2015-05-01

    Radiosterilisation can induce modifications and/or degradation to transpire in poly(ether-block-amide) (PEBA) following irradiation. The current investigation utilises combined synergistic mixtures of stabilisers to minimise these effects, by melt blending them with the PEBA material. Hindered amine stabilisers (HAS), primary antioxidants and secondary antioxidants were the stabilisers incorporate to reduce/eliminate the effects of 50 kGy electron beam irradiation dose on the material. Results were discussed by comparing the stabilising efficiency of mixtures on the PEBA material in contrast to the control sample. Dynamic frequency sweeps demonstrated the formation of crosslinks, where the degree of crosslinking was dependent on the combination of stabilisers mixed in the base material (PEBA). The storage modulus displayed that PEBA blended with Irganox 565 had very slight changes in contrast to all other samples following irradiation. However, since this sample is a phenol containing system, severe discolouration was observed in comparison to other samples due to the oxidation of the hindered phenol. Overall, this study provides compelling evidence that a combined synergistic mixture of Irganox 565 (multifunctional phenolic antioxidant) and Tinuvin 783 (hindered amide light stabiliser) with PEBA, resulted in the best radiation stability.

  15. Inorganic-Organic Nanohybrid Materials of Layered Zinc Hydroxide Nitrate with Intercalated Salicylate: Preparation, Characterization and UV-Blocking Properties

    NASA Astrophysics Data System (ADS)

    Liu, Jiexiang; Zhang, Yongqing; Zhang, Xiaoguang

    2016-02-01

    Intercalation of salicylate (Sal) into layered zinc hydroxide nitrate (ZHN) nanohybrid materials was successfully synthesized by the coprecipitation method. The effect of pH, crystallization method, temperature and time of hydrothermal treatment on preparation was investigated in detail and compared. The products were confirmed by X-ray powder diffraction (XRPD), Fourier transform infrared spectroscopy (FTIR), thermogravimetry and differential thermal analysis (TG-DTA), and scanning electron microscope (SEM). The results revealed that ZHN-Sal with pure phase and good crystallinity was obtained at pH = 6.0-6.5, 60∘C and 3h of temperature and time of hydrothermal treatment. The TG-DTA data indicated that the intercalated Sal had a high stability compared to the isolated. And the phases and compositions of the sample calcined at increasing temperatures were also identified by XRPD and FTIR techniques. Furthermore, ZHN-Sal exhibited an improved UV-blocking ability, showing it can be used as a potential alternative matrix for the UV blocker.

  16. 3 CFR 13611 - Executive Order 13611 of May 16, 2012. Blocking Property of Persons Threatening the Peace...

    Code of Federal Regulations, 2013 CFR

    2013-01-01

    ... Property of Persons Threatening the Peace, Security, or Stability of Yemen 13611 Order 13611 Presidential... Threatening the Peace, Security, or Stability of Yemen By the authority vested in me as President by the... America, find that the actions and policies of certain members of the Government of Yemen and...

  17. 3 CFR 13599 - Executive Order 13599 of February 5, 2012. Blocking Property of the Government of Iran and...

    Code of Federal Regulations, 2013 CFR

    2013-01-01

    ... Property of the Government of Iran and Iranian Financial Institutions 13599 Order 13599 Presidential... Government of Iran and Iranian Financial Institutions By the authority vested in me as President by the... Iran and other Iranian banks to conceal transactions of sanctioned parties, the deficiencies in...

  18. 3 CFR 13572 - Executive Order 13572 of April 29, 2011. Blocking Property of Certain Persons With Respect to...

    Code of Federal Regulations, 2012 CFR

    2012-01-01

    ... Property of Certain Persons With Respect to Human Rights Abuses in Syria 13572 Order 13572 Presidential... Persons With Respect to Human Rights Abuses in Syria By the authority vested in me as President by the... 13460 of February 13, 2008, finding that the Government of Syria's human rights abuses, including...

  19. 3 CFR 13551 - Executive Order 13551 of August 30, 2010. Blocking Property of Certain Persons With Respect to...

    Code of Federal Regulations, 2011 CFR

    2011-01-01

    ... Property of Certain Persons With Respect to North Korea 13551 Order 13551 Presidential Documents Executive... Respect to North Korea By the authority vested in me as President by the Constitution and the laws of the..., 2009; and to take additional steps with respect to the situation in North Korea, I, BARACK...

  20. Characterization of inhibitory anti-insulin-like growth factor receptor antibodies with different epitope specificity and ligand-blocking properties: implications for mechanism of action in vivo.

    PubMed

    Doern, Adam; Cao, Xianjun; Sereno, Arlene; Reyes, Christopher L; Altshuler, Angelina; Huang, Flora; Hession, Cathy; Flavier, Albert; Favis, Michael; Tran, Hon; Ailor, Eric; Levesque, Melissa; Murphy, Tracey; Berquist, Lisa; Tamraz, Susan; Snipas, Tracey; Garber, Ellen; Shestowsky, William S; Rennard, Rachel; Graff, Christilyn P; Wu, Xiufeng; Snyder, William; Cole, Lindsay; Gregson, David; Shields, Michael; Ho, Steffan N; Reff, Mitchell E; Glaser, Scott M; Dong, Jianying; Demarest, Stephen J; Hariharan, Kandasamy

    2009-04-10

    Therapeutic antibodies directed against the type 1 insulin-like growth factor receptor (IGF-1R) have recently gained significant momentum in the clinic because of preliminary data generated in human patients with cancer. These antibodies inhibit ligand-mediated activation of IGF-1R and the resulting down-stream signaling cascade. Here we generated a panel of antibodies against IGF-1R and screened them for their ability to block the binding of both IGF-1 and IGF-2 at escalating ligand concentrations (>1 microm) to investigate allosteric versus competitive blocking mechanisms. Four distinct inhibitory classes were found as follows: 1) allosteric IGF-1 blockers, 2) allosteric IGF-2 blockers, 3) allosteric IGF-1 and IGF-2 blockers, and 4) competitive IGF-1 and IGF-2 blockers. The epitopes of representative antibodies from each of these classes were mapped using a purified IGF-1R library containing 64 mutations. Most of these antibodies bound overlapping surfaces on the cysteine-rich repeat and L2 domains. One class of allosteric IGF-1 and IGF-2 blocker was identified that bound a separate epitope on the outer surface of the FnIII-1 domain. Using various biophysical techniques, we show that the dual IGF blockers inhibit ligand binding using a spectrum of mechanisms ranging from highly allosteric to purely competitive. Binding of IGF-1 or the inhibitory antibodies was associated with conformational changes in IGF-1R, linked to the ordering of dynamic or unstructured regions of the receptor. These results suggest IGF-1R uses disorder/order within its polypeptide sequence to regulate its activity. Interestingly, the activity of representative allosteric and competitive inhibitors on H322M tumor cell growth in vitro was reflective of their individual ligand-blocking properties. Many of the antibodies in the clinic likely adopt one of the inhibitory mechanisms described here, and the outcome of future clinical studies may reveal whether a particular inhibitory mechanism

  1. Hybrid metal-coordinate transient networks: using bio-inspired building blocks to engineer the mechanical properties of physical hydrogels

    NASA Astrophysics Data System (ADS)

    Grindy, Scott; Barrett, Devin; Messersmith, Phillip; Holten-Andersen, Niels

    2014-03-01

    Recently, metal-coordinate complex crosslinks have been suggested to contribute to the self-healing properties of mussel byssi. Two specific amino acid derivatives - 3,4 dihydroxy-L-phenylalanine (dopa) and histidine (his) - are known to form coordinate complexes with trivalent and divalent ions (respectively) in aqueous solutions. We show here that, by functionalizing poly(ethylene glycol) polymers with dopa and his we are (1) able to characterize the fundamental kinetics and energetics of each specific metal-ligand pair using small amplitude oscillatory shear rheology and (2) create hybrid networks using various mixtures of metals and ligands. From this information, we can design gels with specific target mechanical properties by tailoring the amounts and types of metal-ligand crosslinks present in the gel network, resulting in the ability to engineer the mechanical relaxation spectrum. This work provides basic understanding necessary to intelligently design materials which incorporate metal-ligand crosslinks in more complex architectures.

  2. Synthesis, self-assembly and photophysical properties of oligo(2,5-dihexyloxy-1,4-phenylene vinylene)-block-poly(ethylene glycol).

    PubMed

    Feng, Chun; Gonzalez-Alvarez, M Jose; Song, Yin; Li, Isaac; Zhao, Guangyao; Molev, Gregory; Guerin, Gerald; Walker, Gilbert; Scholes, Gregory D; Manners, Ian; Winnik, Mitchell A

    2014-11-28

    We describe the synthesis and characterization of a family of diblock copolymers with 5 units of a dihexyloxy-phenylenevinylene block (OHPV) connected to a series of poly(ethylene glycol) (PEG) chains of different average lengths (12, 45 and 115 PEG units: OHPV5-b-PEG12, OHPV5-b-PEG45, OHPV5-b-PEG115). All three polymers underwent self-assembly in ethanol, a good solvent for the PEG units, but poor for the OHPV segment. The nature of the structures formed depends sensitively on the length of the PEG block. OHPV5-b-PEG115 formed long fiber-like micelles of uniform width, whereas OHPV5-b-PEG45 formed fragile broad ribbons. We also obtained thin ribbons with OHPV5-b-PEG12 but they tend to fold and twist upon themselves. The structures obtained were characterized by transmission electron microscopy (TEM) and atomic force microscopy (AFM), as well as by wide-angle X-ray scattering (WAXS) and differential scanning calorimetry (DSC). In addition, their photophysical properties were examined by UV-vis, steady state fluorescence and fluorescence decay measurements. The results of these experiments indicate that the OHPV groups pack differently in the fiber-like micelles of OHPV5-b-PEG115 than in the lamellar structures formed by OHPV5-b-PEG45. PMID:25274139

  3. Fabrication of ultra-dense sub-10 nm in-plane Si nanowire arrays by using a novel block copolymer method: optical properties.

    PubMed

    Ghoshal, Tandra; Ntaras, Christos; O'Connell, John; Shaw, Matthew T; Holmes, Justin D; Avgeropoulos, Apostolos; Morris, Michael A

    2016-01-28

    The use of a low-χ, symmetric block copolymer as an alternative to the high-χ systems currently being translated towards industrial silicon chip manufacture has been demonstrated. Here, the methodology for generating on-chip, etch resistant masks and subsequent pattern transfer to the substrate using ultra-small dimension, lamellar, microphase separated polystyrene-b-poly(ethylene oxide) (PS-b-PEO) block copolymer (BCP) is described. Well-controlled films of a perpendicularly oriented lamellar pattern with a domain size of ∼8 nm were achieved through amplification of an effective interaction parameter (χeff) of the BCP system. The self-assembled films were used as 'templates' for the generation of inorganic oxides nanowire arrays through selective metal ion inclusion and subsequent processing. Inclusion is a significant challenge because the lamellar systems have less chemical and mechanical robustness than the cylinder forming materials. The oxide nanowires of uniform diameter (∼8 nm) were isolated and their structure mimics the original BCP nanopatterns. We demonstrate that these lamellar phase iron oxide nanowire arrays could be used as a resist mask to fabricate densely packed, identical ordered, good fidelity silicon nanowire arrays on the substrate. Possible applications of the materials prepared are discussed, in particular, in the area of photonics and photoluminescence where the properties are found to be similar to those of surface-oxidized silicon nanocrystals and porous silicon. PMID:26731306

  4. Imide/arylene ether block copolymers

    NASA Technical Reports Server (NTRS)

    Jensen, B. J.; Hergenrother, P. M.; Bass, R. G.

    1991-01-01

    Two series of imide/arylene either block copolymers were prepared using an arylene ether block and either an amorphous or semi-crystalline imide block. The resulting copolymers were characterized and selected physical and mechanical properties were determined. These results, as well as comparisons to the homopolymer properties, are discussed.

  5. Bactericidal block copolymer micelles.

    PubMed

    Vyhnalkova, Renata; Eisenberg, Adi; van de Ven, Theo

    2011-05-12

    Block copolymer micelles with bactericidal properties were designed to deactivate pathogens such as E. coli bacteria. The micelles of PS-b-PAA and PS-b-P4VP block copolymers were loaded with biocides TCMTB or TCN up to 20 or 30 wt.-%, depending on the type of antibacterial agent. Bacteria were exposed to loaded micelles and bacterial deactivation was evaluated. The micelles loaded with TCN are bactericidal; bacteria are killed in less than two minutes of exposure. The most likely interpretation of the data is that the biocide is transferred to the bacteria by repeated micelle/bacteria contacts, and not via the solution. PMID:21275041

  6. No proarrhythmic properties of the antibiotics Moxifloxacin or Azithromycin in anaesthetized dogs with chronic-AV block

    PubMed Central

    Thomsen, M B; Beekman, J D M; Attevelt, N J M; Takahara, A; Sugiyama, A; Chiba, K; Vos, M A

    2006-01-01

    Background & purpose: The therapeutically available quinolone antibiotic moxifloxacin has been used as a positive control for prolonging the QT interval in both clinical and non-clinical studies designed to assess the potential of new drugs to delay cardiac repolarization. Despite moxifloxacin prolonging QT, it has not been shown to cause torsades de pointes arrhythmias (TdP). Azithromycin is a macrolide antibiotic that has rarely been associated, clinically, with cases of proarrhythmia. As there is a lack of clinical data available, the cardiac safety of these drugs was assessed in a TdP-susceptible animal model by evaluating their repolarization and proarrhythmia effects. Experimental approach & Key results: In transfected HEK cells, the IC50s for I hERG were 45±6 and 856±259 μg ml-1 for moxifloxacin and azithromycin, respectively. Intravenous administration of 2 and 8 mg kg-1 moxifloxacin (total peak-plasma concentrations 4.6±1.5 and 22.9±6.8 μg ml-1) prolonged the QTc in 6 anaesthetized dogs with chronic AV block by 7±3 and 21±19%, respectively. Similar intravenous doses of azithromycin (total peak-plasma concentrations 5.4±1.3 and 20.8±4.9 μg ml-1) had no electrophysiological effects in the same dogs. The reference compound, dofetilide (25 μg kg-1 i.v.) caused QTc prolongation (29±15%) and TdP in all dogs. Beat-to-beat variability of repolarization (BVR), quantified as short-term variability of the left ventricular monophasic action potential duration, was only increased after dofetilide (1.8±0.7 to 3.8±1.5 ms; P<0.05). Conclusion & implications: As neither moxifloxacin nor azithromycin caused TdP or an increase in the BVR, we conclude that both drugs can be used safely in clinical situations. PMID:17088870

  7. Thermoplastic-modified epoxy networks: Influence of cure schedule and introduction of block copolymers on morphologies and mechanical properties

    SciTech Connect

    Girard-Reydet, E.; Pascault, J.P.; Sautereau, H.

    1996-10-01

    A requirement of the aerospace industry is to be able to reproducibly manufacture void-free honeycomb core laminates. Void formation has been widely studies but, relationships between the factors which lead to the formation of voids, and the ability to get rid of them, and the physics/chemistry of the matrix have never been established. This work describes the establishment of such relationships. A high MW, pendently functionalised rubber, is incorporated into the epoxy resins and crosslinked in situ in a controlled fashion, prior to prepregging, to achieve the optimum balance of viscous flow and viscoelastic behaviour which is essential for void elimination. Control of this reaction also leads to control of the matrix morphology and mechanical properties.

  8. 26 CFR 1.167(f)-1 - Reduction of salvage value taken into account for certain personal property.

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ... for Individuals and Corporations § 1.167(f)-1 Reduction of salvage value taken into account for... the basis for depreciation. See paragraph (c) of § 1.167(a)-1 for the definition of salvage value, the... respect to the treatment of salvage value. See also section 167(g) and § 1.167(g)-1 for basis...

  9. Effects of gamma ray and electron beam irradiation on the mechanical, thermal, structural and physicochemical properties of poly (ether-block-amide) thermoplastic elastomers.

    PubMed

    Murray, Kieran A; Kennedy, James E; McEvoy, Brian; Vrain, Olivier; Ryan, Damien; Cowman, Richard; Higginbotham, Clement L

    2013-01-01

    Both gamma ray and electron beam irradiation are widely used as a means of medical device sterilisation. However, it is known that the radiation produced by both processes can lead to undesirable changes within biomedical polymers. The main objective of this research was to conduct a comparative study on the two key radiosterilisation methods (gamma ray and electron beam) in order to identify the more detrimental process in terms of the mechanical, structural, chemical and thermal properties of a common biomedical grade polymer. Poly (ether-block-amide) (PEBA) was prepared by injection moulding ASTM testing specimens and these were exposed to an extensive range of irradiation doses (5-200 kGy) in an air atmosphere. The effect of varying the irradiation dose concentration on the resultant PEBA properties was apparent. For instance, the tensile strength, percentage elongation at break and shore D hardness can be increased/decreased by controlling the aforementioned criteria. In addition, it was observed that the stiffness of the material increased with incremental irradiation doses as anticipated. Melt flow index demonstrated a dramatic increase in the melting strength of the material indicating a sharp increase in molecular weight. Conversely, modulated differential scanning calorimetry established that there were no significant alterations to the thermal transitions. Noteworthy trends were observed for the dynamic frequency sweeps of the material, where the crosslink density increased according to an increase in electron beam irradiation dose. Trans-vinylene unsaturations and the carbonyl group concentration increased with an increment in irradiation dose for both processes when observed by FTIR. The relationship between the irradiation dose rate, mechanical properties and the subsequent surface properties of PEBA material is further elucidated throughout this paper. This study revealed that the gamma irradiation process produced more adverse effects in the PEBA

  10. Tailoring chemical and physical properties of fibrous scaffolds from block copolyesters containing ether and thio-ether linkages for skeletal differentiation of human mesenchymal stromal cells.

    PubMed

    Chen, Honglin; Gigli, Matteo; Gualandi, Chiara; Truckenmüller, Roman; van Blitterswijk, Clemens; Lotti, Nadia; Munari, Andrea; Focarete, Maria Letizia; Moroni, Lorenzo

    2016-01-01

    Bioactive scaffolds for tissue engineering call for demands on new materials which can enhance traditional biocompatibility requirements previously considered for clinical implantation. The current commercially available thermoplastic materials, such as poly(lactic acid) (PLA), poly(glycolic acid) (PGA), poly(ε-caprolactone) (PCL) and their copolymers, have been used to fabricate scaffolds for regenerative medicine. However, these polymers have limitations including lacking of broadly tuning mechanical and degradable properties, and activation of specific cell-scaffold interactions, which limit their further application in tissue engineering. In the present study, electrospun scaffolds were successfully fabricated from a new class of block poly(butylene succinate)-based (PBS-based) copolyesters containing either butylene thiodiglycolate (BTDG) or butylene diglycolate (BDG) sequences. The polyesters displayed tunable mechanical properties and hydrolysis rate depending on the molecular architecture and on the kind of heteroatom introduced along the polymer backbone. To investigate their potential for skeletal regeneration, human mesenchymal stromal cells (hMSCs) were cultured on the scaffolds in basic, osteogenic and chondrogenic media. Our results demonstrated that PBS-based copolyesters containing thio-ether linkages (i.e. BTDG segments) were more favorable for chondrogenesis of hMSCs than those containing ether linkages (i.e. BDG sequences). In contrast, PBS-based copolyesters containing ether linkages showed enhanced mineralization. Therefore, these new functional scaffolds might hold potential for osteochondral tissue engineering applications. PMID:26546918

  11. Polymeric micelles based on poly(methacrylic acid) block-containing copolymers with different membrane destabilizing properties for cellular drug delivery.

    PubMed

    Mebarek, Naila; Aubert-Pouëssel, Anne; Gérardin, Corine; Vicente, Rita; Devoisselle, Jean-Marie; Bégu, Sylvie

    2013-10-01

    Poly(methacrylic acid)-b-poly(ethylene oxide) are double hydrophilic block copolymers, which are able to form micelles by complexation with a counter-polycation, such as poly-l-lysine. A study was carried out on the ability of the copolymers to interact with model membranes as a function of their molecular weights and as a function of pH. Different behaviors were observed: high molecular weight copolymers respect the membrane integrity, whereas low molecular weight copolymers with a well-chosen asymmetry degree can induce a membrane alteration. Hence by choosing the appropriate molecular weight, micelles with distinct membrane interaction behaviors can be obtained leading to different intracellular traffics with or without endosomal escape, making them interesting tools for cell engineering. Especially micelles constituted of low molecular weight copolymers could exhibit the endosomal escape property, which opens vast therapeutic applications. Moreover micelles possess a homogeneous nanometric size and show variable properties of disassembly at acidic pH, of stability in physiological conditions, and finally of cyto-tolerance. PMID:23792466

  12. A Solution-Processable (Tetraaniline-b-Polyethylene Glycol)3 Star-Shaped Rod-Coil Block Copolymer with Enhanced Electrochromic Properties.

    PubMed

    Cao, Linyu; Gong, Chen; Yang, Jiping

    2016-02-01

    A novel electroactive star-shaped rod-coil copolymer composed of a benzene core and three symmetrically positioned tetraaniline-b-poly(ethylene glycol) arms, (TAni-b-PEG)3 rod-coil block copolymer, is synthesized successfully and characterized using Fourier transform infrared spectroscopy (FTIR), UV-vis, (1)H NMR, and matrix-assisted laser desorption/ionization (MALDI) mass spectrometry. Uniform and high-quality (TAni-b-PEG)3 thin films onto indium tin oxide-coated glass surface are fabricated simply from its DMF solution. Resulting (TAni-b-PEG)3 copolymer thin films possess excellent electrochromic properties with a high optical contrast of 73.3%, superb coloration efficiency of 318.5 cm(2) C(-1) at 750 nm. Very short switching times, that is, 2.11 s and 2.14 s for coloring and bleaching times, respectively, are observed as well. The mechanism of these impressive electrochromic properties of (TAni-b-PEG)3 thin films possessed is proposed based on the atomic force microscopy investigation, star-shaped molecular geometry, synergetic electronic and ionic conductivity and amphiphilic self-assembly feature of (TAni-b-PEG)3 copolymer, which can self-assemble to form cylinder pattern consisting of quick pathways for electronic charges and ionic species, respectively. PMID:26663524

  13. Fabrication of ultra-dense sub-10 nm in-plane Si nanowire arrays by using a novel block copolymer method: optical properties

    NASA Astrophysics Data System (ADS)

    Ghoshal, Tandra; Ntaras, Christos; O'Connell, John; Shaw, Matthew T.; Holmes, Justin D.; Avgeropoulos, Apostolos; Morris, Michael A.

    2016-01-01

    The use of a low-χ, symmetric block copolymer as an alternative to the high-χ systems currently being translated towards industrial silicon chip manufacture has been demonstrated. Here, the methodology for generating on-chip, etch resistant masks and subsequent pattern transfer to the substrate using ultra-small dimension, lamellar, microphase separated polystyrene-b-poly(ethylene oxide) (PS-b-PEO) block copolymer (BCP) is described. Well-controlled films of a perpendicularly oriented lamellar pattern with a domain size of ~8 nm were achieved through amplification of an effective interaction parameter (χeff) of the BCP system. The self-assembled films were used as `templates' for the generation of inorganic oxides nanowire arrays through selective metal ion inclusion and subsequent processing. Inclusion is a significant challenge because the lamellar systems have less chemical and mechanical robustness than the cylinder forming materials. The oxide nanowires of uniform diameter (~8 nm) were isolated and their structure mimics the original BCP nanopatterns. We demonstrate that these lamellar phase iron oxide nanowire arrays could be used as a resist mask to fabricate densely packed, identical ordered, good fidelity silicon nanowire arrays on the substrate. Possible applications of the materials prepared are discussed, in particular, in the area of photonics and photoluminescence where the properties are found to be similar to those of surface-oxidized silicon nanocrystals and porous silicon.The use of a low-χ, symmetric block copolymer as an alternative to the high-χ systems currently being translated towards industrial silicon chip manufacture has been demonstrated. Here, the methodology for generating on-chip, etch resistant masks and subsequent pattern transfer to the substrate using ultra-small dimension, lamellar, microphase separated polystyrene-b-poly(ethylene oxide) (PS-b-PEO) block copolymer (BCP) is described. Well-controlled films of a

  14. Core-shell nanoparticles as building blocks for the bottom-up production of functional nanocomposites: PbTe-PbS thermoelectric properties.

    PubMed

    Ibáñez, Maria; Zamani, Reza; Gorsse, Stéphane; Fan, Jiandong; Ortega, Silvia; Cadavid, Doris; Morante, Joan Ramon; Arbiol, Jordi; Cabot, Andreu

    2013-03-26

    The bottom-up assembly of nanocrystals provides access to a three-dimensional composition control at the nanoscale not attainable by any other technology. In particular, colloidal nanoheterostructures, with intrinsic multiphase organization, are especially appealing building blocks for the bottom-up production of nanocomposites. In the present work, we use PbTe-PbS as the model material system and thermoelectricity as the paradigmatic application to investigate the potential of the bottom-up assembly of core-shell nanoparticles to produce functional nanocomposites. With this goal in mind, a rapid, high-yield and scalable colloidal synthetic route to prepare grams of PbTe@PbS core-shell nanoparticles with unprecedented narrow size distributions and exceptional composition control is detailed. PbTe@PbS nanoparticles were used as building blocks for the bottom-up production of PbTe-PbS nanocomposites with tuned composition. In such PbTe-PbS nanocomposites, synergistic nanocrystal doping effects result in up to 10-fold higher electrical conductivities than in pure PbTe and PbS nanomaterials. At the same time, the acoustic impedance mismatch between PbTe and PbS phases and a partial phase alloying provide PbTe-PbS nanocomposites with strongly reduced thermal conductivities. As a result, record thermoelectric figures of merit (ZT) of ∼1.1 were obtained from undoped PbTe and PbS phases at 710 K. These high ZT values prove the potential of the proposed processes to produce efficient functional nanomaterials with programmable properties. PMID:23448184

  15. In situ tracer tests to determine retention properties of a block scale fracture network in granitic rock at the Äspö Hard Rock Laboratory, Sweden

    NASA Astrophysics Data System (ADS)

    Andersson, Peter; Byegård, Johan; Tullborg, Eva-Lena; Doe, Thomas; Hermanson, Jan; Winberg, Anders

    2004-06-01

    Experiments were conducted at the Äspö Hard Rock Laboratory in order to improve the understanding of radionuclide retention properties of fractured crystalline bedrock in the 10-100 m scale (TRUE Block Scale Project, jointly funded by ANDRA, ENRESA, Nirex, JNC, Posiva and SKB). A series of tracer experiments were performed using sorbing tracers in three different flow paths. The different flow paths had Euclidian lengths of 14, 17 and 33 m, respectively, and one to three water conducting structures. Four tests were performed using different cocktails made up of radioactive sorbing tracers ( 22,24Na +, 42K +, 47Ca 2+, 85Sr 2+, 83,86Rb +, 131,133Ba 2+ and 134,137Cs +). For each tracer injection, the breakthrough of sorbing tracers was compared to the breakthrough of a conservative tracer, 82Br -, 131I -, HTO and 186ReO 4-, respectively. In the two longer flow paths, no breakthrough of 83Rb + and 137Cs + was observed after 8 months of pumping. Selected tracer tests were subject to basic modelling in which a one-dimensional (1D) advection-dispersion model, including surface sorption, and an unlimited matrix diffusion were used for the interpretation of the results. The results of the modelling indicated that there is a slightly higher mass transfer into a highly porous material in the block-scale experiment compared with in situ experiments performed over shorter distances and significantly higher than what would have been expected from laboratory data obtained from studies of the interactions in nonaltered intact rock.

  16. pH- and Electro-Responsive Properties of Poly(acrylic acid) and Poly(acrylic acid)-block-poly(acrylic acid-grad-styrene) Brushes Studied by Quartz Crystal Microbalance with Dissipation Monitoring.

    PubMed

    Borisova, O V; Billon, L; Richter, R P; Reimhult, E; Borisov, O V

    2015-07-14

    We report on the synthesis of novel pH- and electro-responsive polyelectrolyte brushes from a gold substrate by direct one-step nitroxide-mediated polymerization of acrylic acid (AA) or copolymerization of AA and styrene (S). In the latter case, amphiphilic brushes of block-gradient copolymers PAA-b-(PAA-grad-PS) comprising one PAA block and one block with the gradient sequence of AA and S were obtained. The block-gradient copolymers are initiated from the surface by the start of the PAA block. The brushes were characterized by XPS and ellipsometry. (1)H NMR confirmed the gradient sequence of the PAA-grad-PS copolymer block. The pH- and electro-responsive properties of the brushes were studied by quartz crystal microbalance with dissipation monitoring (QCM-D) in combination with electrochemistry. This method provides evidence of swelling of the PAA brushes proportional to the contour length of the chains at elevated pH, whereas the response functions of the block-gradient copolymers are more complex and point to intermolecular aggregation in the brush at low pH. Monitoring of the changes in resonance frequency and dissipation of the QCM-D also demonstrates that application of negative voltage to the substrate leads to swelling of the brush; application of a positive voltage provokes only a transient collapse of the brush in proportion to the applied voltage. PMID:26070329

  17. Radar Scattering and Block Size Properties of Lunar Crater Ejecta From Mini-RF and LROC NAC Data

    NASA Technical Reports Server (NTRS)

    Spudis, P. D.; Baloga, S. M.; Glaze, L. S.; Dixit, V.; Pantone, S. M.; Juvanescu, I.

    2012-01-01

    A major objective of the Mini-RF experiment is to distinguish lunar surfaces that may contain water/ice deposits [1,2]. Better understanding of the backscattering properties of craters of varying age and size is crucial for interpreting data received from the Mini-RF. The Mini-RF transmits a circularly polarized RF electromagnetic energy and coherently receives orthogonal linear polarization echoes [1]. The Mini- RF maps in two separate bands ( =12.6 and 4.5 cm) at a high resolution mode of 30 m/pixel [1]. Given the variables mentioned, the four stokes parameters are reconstructed. The Circular Polarization Ratio (CPR) is calculated for the purposes of understanding subsurface and surface roughness. The CPR is determined from reflections acquired from the ratio of power of the transmitted radio wave in same sense to the reflected radio wave in the opposite sense [1]. Ice in the permanently shadowed regions (PSRs) would be transparent to radar, but the inclusions of materials and imperfections would cause the radio wave to reflect multiple times [3], enhancing the number of same sense reflections and increasing the CPR. In addition, ice also displays the coherent backscatter opposition effect (CBOE), an interferrometric addition of same sense backscatter that further increases the CPR of ice targets [7]. High CPR values also correlate to multiple reflections and are typically associated with very rough surfaces [3]. The average dry lunar surface has a CPR in the range of 0.2-0.4 at 48deg incidence [3]. The purpose of this study is to begin to quantify degrees of surface wavelength-scale roughness with CPR and to understand how such surface roughness is created and gradually destroyed by erosion on the lunar surface. Another goal is to identify and isolate the possible causes of high CPR within the shadowed areas of anomalous polar craters [3]. All the studied craters are non-polar, so that we can see into their interiors in NAC images. The idea is to understand what

  18. Remote-sensing based technique to account for sub-grid scale variability of land surface properties

    NASA Technical Reports Server (NTRS)

    Crosson, William L.; Laymon, Charles A.

    1995-01-01

    A method has been presented for the representation of sub-grid scale variability of surface properties within a land surface processes model. The method uses remotely-sensed data to directly or indirectly estimate probability density functions (PDF's) or key surface variables. Application of this technique in a coupled land surface-atmosphere model requires only grid-scale values of the variables of interest, obtained from low-resolution satellite imagery or surface/remote sensing data assimilation. The PDF's of each controlling surface property are superimposed on the respective grid-scale values to simulate sub-grid scale heterogeneity. Sensitivity studies will be carried out to ascertain the relative importance of the heterogeneity of several variables, and the degree to which non-linear property-process interactions impact large-scale fluxes.

  19. Photoacoustic determination of optical properties of aerosol particles collected on filters: development of a method taking into account substrate reflectivity.

    PubMed

    Röhl, R; McClenny, W A; Palmer, R A

    1982-02-01

    The absorptivity of soot and methylene blue particles collected on Teflon filters is derived from photoacoustic measurements by least squares fitting a simple expression based on Beer's law to the experimental data. Refinements of the expression take into account the diffuse reflection of light by the filter substrate, yielding a base 10 absorptivity at 600 nm for soot of 3.00 +/- 0.37 m(2)/g. This value is in close agreement with the result of transmission measurements performed on the same samples (3.08 +/- 0.05 m(2)/g). PMID:20372465

  20. Randomly Accountable

    ERIC Educational Resources Information Center

    Kane, Thomas J.; Staiger, Douglas O.; Geppert, Jeffrey

    2002-01-01

    The accountability debate tends to devolve into a battle between the pro-testing and anti-testing crowds. When it comes to the design of a school accountability system, the devil is truly in the details. A well-designed accountability plan may go a long way toward giving school personnel the kinds of signals they need to improve performance.…