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Sample records for protactinium 234

  1. Protactinium

    NASA Astrophysics Data System (ADS)

    Myasoedov, Boris F.; Kirby, H. W.; Tananaev, Ivan G.

    Protactinium, element 91, is one of the most rare of the naturally occurring elements and may well be the most difficult of all to extract from natural sources. Protactinium is, formally, the third element of the actinide series and the first having a 5f electron. The superconducting properties of protactinium metal provide clear evidence that Pa is a true actinide element (Smith et al., 1979). Its chemical behavior in aqueous solution, however, would seem to place it in group VB of the Mendeleev's table, below Ta and Nb.

  2. PROTACTINIUM EXTRACTION

    DOEpatents

    Horn, F.L.

    1962-07-24

    A method of producing and separating protactinium from taorium containing solids is described. The protactinium is formed by irradiating thorium containing solids, such as thorium dioxide and thorium tetrafluoride with neutrons. The protactinium is separated from the thorium solids by contacting the solids with a non-squeous solution of hydrogen fluoride and a complexing agent, NO/sub 2/. The protactinium complex formed is soluble in the non-aqueous solution, whereas the thorium solids remain insoluble in the solution. (AEC)

  3. Peculiar protactinium

    NASA Astrophysics Data System (ADS)

    Wilson, Richard

    2012-07-01

    Richard Wilson relates how the rare, highly radioactive, highly toxic element protactinium puzzled chemists for a long time, and was discovered and named twice from two different isotopes before finding its place in fundamental research.

  4. Superconducting properties of protactinium.

    PubMed

    Smith, J L; Spirlet, J C; Müller, W

    1979-07-13

    The superconducting transition temperature and upper critical magnetic field of protactinium were measured by alternating-current susceptibility techniques. Since the superconducting behavior of protactinium is affected by its 5f electron character, it is clear now that protactinium is a true actinide element.

  5. PRECIPITATION OF PROTACTINIUM

    DOEpatents

    Moore, R.L.

    1958-07-15

    An lmprovement in the separation of protactinium from aqueous nitric acid solutions is described. 1t covers the use of lead dioxide and tin dioxide as carrier precipitates for the protactinium. In carrying out the process, divalent lead or divalent tin is addcd to the solution and oxidized, causing formation of a carrier precipitate of lead dioxide or stannic oxide, respectively.

  6. The 234mPa Generator: Aspects of Milking the "234th Cow."

    ERIC Educational Resources Information Center

    Schwankner, Robert J.; And Others

    1985-01-01

    Uses the protactinium (Pa-234m) generator to illustrate the production of isotopes of short half-life for medical analysis. The principle of nuclide generators and suggested experiments (with procedures and typical results) are discussed. (JN)

  7. The 234mPa Generator: Aspects of Milking the "234th Cow."

    ERIC Educational Resources Information Center

    Schwankner, Robert J.; And Others

    1985-01-01

    Uses the protactinium (Pa-234m) generator to illustrate the production of isotopes of short half-life for medical analysis. The principle of nuclide generators and suggested experiments (with procedures and typical results) are discussed. (JN)

  8. SEPARATION OF PROTACTINIUM FROM CONTAMINANTS

    DOEpatents

    Malm, J.G.; Fried, S.

    1959-07-01

    The separation of protactinium by volatilization method is described. According to the invention, neutron irradiated finely divided thorium is reacted with aluminum trichloride or a mixture of aluminum trichloride and chlorine gas at a temperature of preferably between about 200 and 400 deg C. Following the chlorinating step the protactinium chloride along with aluminum chloride is selectively distilled from the mixture at a temperature of approximately 100 deg C. The protactinium chloride may be recovered from the mixture by treatment with sodium hydroxide, which converts the aluminum chloride to a soluble salt and forms insoluble protactinium hydroxide.

  9. RECOVERY OF PROTACTINIUM

    DOEpatents

    Kraus, K.A.; Moore, G.E.

    1959-02-01

    A process is presented for the separation of protactinium values from an aqueous solution containing Pa and Th values comprising establishing in the solution a HCl concentration of from 4 to 11 molar, contacting the resulting solution with an anion-exchange adsorbent, such as a polystyrene divinyl benzene polymer with quatenary amines as the active exchange group, to effect the adsorption of Pa values upon the adsorbent while leaving Th values in the solution, and then washlng the separated Pa bearing adsorbent with an aqueous solution of HCl of less than 4M to exclusively elute Pa values from the adsorbent. If hexavalent U values are contained in the original solution thcy are adsorbed on the resin together with Pa. A separation is offected chromatographically by percolating the resin with aqueous HCl.

  10. SOLVENT EXTRACTION PROCESS FOR PROTACTINIUM

    DOEpatents

    Hyde, E.K.; Katzin, L.I.; Wolf, M.J.

    1961-04-01

    A process is described for separating protactinium from thorium present together as the nitrates in a 0.1 to 10 N nitric acid solution. The separation is carried out by extraction with an aliphatic alcohol, ketone, and/or ester having at least six carbon atoms, such as n-amyl acetate, 2-ethyl hexanol, and diisopropyl ketone.

  11. RECOVERY OF PROTACTINIUM FROM AQUEOUS SOLUTIONS

    DOEpatents

    Elson, R.E.

    1959-07-14

    The recovery of fluoride complexed protactinium from aqueous acidic solutions by solvent extraction is described. Generally the prccess of the invention com rises mixing an aqueous solution containing protactinium in a complexed form with an organic solvent which is specific for protactinium, such as diisopropyl carbinol, then decomposing the protactinium complex by adjusting the acidity of the aqueous solution to between 0-3 to 0-9 M in hydrogen ion concentration, and introducing a source of aluminum ions in sufficient quantity to establish a concentration of 0.5 to 1.2 M aluminum ion, whereupon decomposition of the protactinium fluoride complex takes place and the protactinium ion is taken up by the organic solvent phase.

  12. SEPARATION PROCESS FOR PROTACTINIUM AND COMPOUNDS THEREOF

    DOEpatents

    Van Winkle, A.

    1959-07-21

    The separation of protactinium from aqueous solutions from its mixtures with thorium, uranium and fission products is described. The process for the separation comprises preparing an ion nitric acid solution containing protactinium in the pentavalent state and contacting the solution with a fluorinated beta diketone, such as trifluoroacetylacetone, either alone or as an organic solvent solution to form a pentavalent protactinium chelate compound. When the organic solvent is present the chelate compound is extracted; otherwise it is separated by filtration.

  13. SEPARATION OF URANIUM FROM THORIUM AND PROTACTINIUM

    DOEpatents

    Musgrave, W.K.R.

    1959-06-30

    This patent relates to the separation of uranium from thorium and protactinium; such mixtures of elements usually being obtained by neutron irradiation of thorium. The method of separating the constituents has been first to dissolve the mixture of elements in concertrated nitric acid and then to remove the protactinium by absorption on manganese dioxide and the uranium by solvent extraction with ether. Prior to now, comparatively large amounts of thorium were extracted with the uranium. According to the invention this is completely prevented by adding sodium diethyldithiocarbamate to the mixture of soluble nitrate salts. The organic salt has the effect of reacting only with the uranyl nitrate to form the corresponding uranyl salt which can then be selectively extracted from the mixture with amyl acetate.

  14. CATION EXCHANGE METHOD FOR THE RECOVERY OF PROTACTINIUM

    DOEpatents

    Studier, M.H.; Sullivan, J.C.

    1959-07-14

    A cation exchange prccess is described for separating protactinium values from thorium values whereby they are initially adsorbed together from an aqueous 0.1 to 2 N hydrochloric acid on a cation exchange resin in a column. Then selectively eluting the thorium by an ammonium sulfate solution and subsequently eluting the protactinium by an oxalate solution.

  15. Protactinium Fluorides, the New Class, MPaF6.

    PubMed

    Asprey, L B; Penneman, R A

    1964-08-28

    Complex fluorides of protactinium having a Pa/M ratio of one (where M = K, Rb, or NH(4)) have been prepared from concentrated solutions of HF. These MPaF(6) compounds are isostructural with the corresponding compounds of pentavalent uranium but not with the tantalum analogs. The size of protactinium (V) is but slightly larger than that of uranium (V).

  16. Graphs for Isotopes of 91-Pa (Protactinium)

    NASA Astrophysics Data System (ADS)

    Sukhoruchkin, S. I.; Soroko, Z. N.

    This document is part of the Supplement containing the complete sets of data of Subvolume B `Nuclei with Z = 55 - 100' of Volume 22 `Nuclear Binding Energies and Atomic Masses' of Landolt-Börnstein - Group I `Elementary Particles, Nuclei and Atoms', and additionally including data for nuclei with Z = 101 - 130. It provides a graphic representation of nucleon separation energies and residual interaction parameters for isotopes of the chemical element 91-Pa (Protactinium, atomic number Z = 91).

  17. Recovery of protactinium from molten fluoride nuclear fuel compositions

    DOEpatents

    Baes, C.F. Jr.; Bamberger, C.; Ross, R.G.

    1973-12-25

    A method is provided for separating protactinium from a molten fluonlde salt composition consisting essentially of at least one alkali and alkaline earth metal fluoride and at least one soluble fluoride of uranium or thorium which comprises oxidizing the protactinium in said composition to the + 5 oxidation state and contacting said composition with an oxide selected from the group consisting of an alkali metal oxide, an alkaline earth oxide, thorium oxide, and uranium oxide, and thereafter isolating the resultant insoluble protactinium oxide product from said composition. (Official Gazette)

  18. Alpha-decay of light protactinium isotopes

    SciTech Connect

    Faestermann, T.; Gillitzer, A.; Hartel, K.; Henning, W.; Kienle, P.

    1987-12-10

    Light protactinium isotopes have been produced with /sup 204/Pb (/sup 19/F,xn) reactions. ..cap alpha..-activities with E/sub ..cap alpha../ = 9.90(5) MeV, T/sub 1/2/ = 53(10) ns and E/sub ..cap alpha../ = 9.65(5) MeV, T/sub 1/2/ = 0.78(16) ..mu..s could be attributed to the previously unobserved nuclei /sup 219/Pa and /sup 220/Pa with the help of excitation functions. The peak cross sections for the 4n and 3n evaporation channels are on the order of 10 ..mu..b. The decay energies as well as the halflives fit well into the systematics of these nuclei close to the magic neutron number N = 126. /sup 219/Pa is the shortest lived nuclide known with directly measured halflife.

  19. The sorption of polonium, actinium and protactinium onto geological materials

    SciTech Connect

    Baston, G.M.N.; Berry, J.A.; Brownsword, M.; Heath, T.G.; Ilett, D.J.; McCrohon, R.; Tweed, C.J.; Yui, M.

    1999-07-01

    This paper describes a combined experimental and modeling program of generic sorption studies to increase confidence in the performance assessment for a potential high-level radioactive waste repository in Japan. The sorption of polonium, actinium and protactinium onto geological materials has been investigated. Sorption of these radioelements onto bentonite, tuff and granodiorite from equilibrated de-ionized water was studied under reducing conditions at room temperature. In addition, the sorption of actinium and protactinium was investigated at 60 C. Thermodynamic chemical modeling was carried out to aid interpretation of the results.

  20. Extraction of protactinium from mineral acid-alcohol media.

    PubMed

    Alian, A; Sanad, W; Shabana, R

    1968-07-01

    The extraction of protactinium with organic solvents has been investigated in the presence of water-miscible alcohols and acetone. These additives were found to increase considerably the extraction of protactinium in the cases of trilaurylamine, tributyl phosphate and isobutyl methyl ketone. The influence was less in the case of thenoyltrifluoroacetone. In mixtures of an acid with various alcohols, the influence depended on the alcohol concentration, the acidity and on the chain lengths and dielectric constants of the alcohol introduced into the extraction system.

  1. SEPARATION OF PROTACTINIUM FROM MOLTEN SALT REACTOR FUEL COMPOSITIONS

    DOEpatents

    Shaffer, J.H.; Strain, J.E.; Cuneo, D.R.; Kelly, M.J.

    1963-11-12

    A method for selectively precipitating protactinium from a neutron- irradiated fused fluoride salt composition comprising at least one metal fluoride selected from the group consisting of an alkali metal fluoride and an alkaline earth metal fluoride containing dissolved thorium-232 values is presented. An inorganic metal oxide corresponding to any of the metal fluorides of the composition is also added. (AEC)

  2. Discovery of actinium, thorium, protactinium, and uranium isotopes

    NASA Astrophysics Data System (ADS)

    Fry, C.; Thoennessen, M.

    2013-05-01

    Thirty-one actinium, thirty-one thorium, twenty-eight protactinium, and twenty-three uranium isotopes have so far been observed; the discovery of these isotopes is described. For each isotope a brief summary of the first refereed publication, including the production and identification method, is presented.

  3. Protactinium distribution in a fluoride melt in the presence of solid oxide phases

    SciTech Connect

    Alekseev, V.A.; Ziv, V.S.; Morozova, Z.E.

    1989-01-01

    Measurements have been made on protactinium distributions between molten lithium and sodium fluorides and solid lanthanum or zirconium oxides as affected by time, amount of solid, and amount of gas (air of argon) at 1023 K. Protactinium can be extracted quantitatively from LiF-NaF melts by the two oxides. It is found that all the regularities previously reported for actinoid distributions in halide liquids in the presence of oxides apply to protactinium.

  4. Uranium-thorium-protactinium dating systematics

    SciTech Connect

    Cheng, H.; Edwards, R.L.; Murrell, M.T.; Benjamin, T.M.

    1998-11-01

    With precise {sup 234}U, {sup 230}Th, and {sup 231}Pa data available, {sup 230}Th and {sup 231}Pa ages can now be tested rigorously for concordancy. If the material is not concordant, the isotope characteristics of this material may be examined in some detail. Here, models similar to those used to describe the U-Pb system are evaluated for use in U-Th-Pa studies, for the case in which initial {sup 230}Th and {sup 231}Pa concentrations are effectively zero. The systematics of concordia plots in relation to models of variation in {delta}{sup 234}U, episodic U or loss or gain, continuous U loss or gain, and continuous {sup 234}U, {sup 230}Th and {sup 231}Pa gain or loss are considered for the case in which initial U concentration is significant (for example, in many carbonate deposits). The authors also examine linear U uptake models for the case in which initial U concentration is effectively zero (for example, in teeth and bones). Such models should prove useful in interpreting data from materials that have behaved as open-systems. In particular, these models may help constrain the nature of diagenetic processes, and in some situations it may be possible to determine or constrain true ages with materials that have behaved as open-systems.

  5. Molecular Characterization of Actinide Oxocations from Protactinium to Plutonium

    SciTech Connect

    Den Auwer, C.; Guilbaud, P.; Guillaumont, D.; Moisy, P.; Hennig, C.; Scheinost, A.; Conradson, S. D.

    2007-02-02

    This presentation addresses the structural characterization by EXAFS of actinide cations at oxidation states (V) and (VI) as one walks across the periodic table from Z = 91 (protactinium) to Z = 94 (plutonium). A structural comparison between Pa, U, Np and Pu oxocations in aqueous solution at formal oxidation states (V) and (VI) is carried out. These results are corroborated by quantum chemical and molecular dynamics calculations.

  6. Atomic Mass and Nuclear Binding Energy for Pa-248 (Protactinium)

    NASA Astrophysics Data System (ADS)

    Sukhoruchkin, S. I.; Soroko, Z. N.

    This document is part of the Supplement containing the complete sets of data of Subvolume B `Nuclei with Z = 55 - 100' of Volume 22 `Nuclear Binding Energies and Atomic Masses' of Landolt-Börnstein - Group I `Elementary Particles, Nuclei and Atoms', and additionally including data for nuclei with Z = 101 - 130. It provides atomic mass, mass excess, nuclear binding energy, nucleon separation energies, Q-values, and nucleon residual interaction parameters for atomic nuclei of the isotope Pa-248 (Protactinium, atomic number Z = 91, mass number A = 248).

  7. Atomic Mass and Nuclear Binding Energy for Pa-247 (Protactinium)

    NASA Astrophysics Data System (ADS)

    Sukhoruchkin, S. I.; Soroko, Z. N.

    This document is part of the Supplement containing the complete sets of data of Subvolume B `Nuclei with Z = 55 - 100' of Volume 22 `Nuclear Binding Energies and Atomic Masses' of Landolt-Börnstein - Group I `Elementary Particles, Nuclei and Atoms', and additionally including data for nuclei with Z = 101 - 130. It provides atomic mass, mass excess, nuclear binding energy, nucleon separation energies, Q-values, and nucleon residual interaction parameters for atomic nuclei of the isotope Pa-247 (Protactinium, atomic number Z = 91, mass number A = 247).

  8. Atomic Mass and Nuclear Binding Energy for Pa-308 (Protactinium)

    NASA Astrophysics Data System (ADS)

    Sukhoruchkin, S. I.; Soroko, Z. N.

    This document is part of the Supplement containing the complete sets of data of Subvolume B `Nuclei with Z = 55 - 100' of Volume 22 `Nuclear Binding Energies and Atomic Masses' of Landolt-Börnstein - Group I `Elementary Particles, Nuclei and Atoms', and additionally including data for nuclei with Z = 101 - 130. It provides atomic mass, mass excess, nuclear binding energy, nucleon separation energies, Q-values, and nucleon residual interaction parameters for atomic nuclei of the isotope Pa-308 (Protactinium, atomic number Z = 91, mass number A = 308).

  9. Atomic Mass and Nuclear Binding Energy for Pa-291 (Protactinium)

    NASA Astrophysics Data System (ADS)

    Sukhoruchkin, S. I.; Soroko, Z. N.

    This document is part of the Supplement containing the complete sets of data of Subvolume B `Nuclei with Z = 55 - 100' of Volume 22 `Nuclear Binding Energies and Atomic Masses' of Landolt-Börnstein - Group I `Elementary Particles, Nuclei and Atoms', and additionally including data for nuclei with Z = 101 - 130. It provides atomic mass, mass excess, nuclear binding energy, nucleon separation energies, Q-values, and nucleon residual interaction parameters for atomic nuclei of the isotope Pa-291 (Protactinium, atomic number Z = 91, mass number A = 291).

  10. Atomic Mass and Nuclear Binding Energy for Pa-305 (Protactinium)

    NASA Astrophysics Data System (ADS)

    Sukhoruchkin, S. I.; Soroko, Z. N.

    This document is part of the Supplement containing the complete sets of data of Subvolume B `Nuclei with Z = 55 - 100' of Volume 22 `Nuclear Binding Energies and Atomic Masses' of Landolt-Börnstein - Group I `Elementary Particles, Nuclei and Atoms', and additionally including data for nuclei with Z = 101 - 130. It provides atomic mass, mass excess, nuclear binding energy, nucleon separation energies, Q-values, and nucleon residual interaction parameters for atomic nuclei of the isotope Pa-305 (Protactinium, atomic number Z = 91, mass number A = 305).

  11. Atomic Mass and Nuclear Binding Energy for Pa-284 (Protactinium)

    NASA Astrophysics Data System (ADS)

    Sukhoruchkin, S. I.; Soroko, Z. N.

    This document is part of the Supplement containing the complete sets of data of Subvolume B `Nuclei with Z = 55 - 100' of Volume 22 `Nuclear Binding Energies and Atomic Masses' of Landolt-Börnstein - Group I `Elementary Particles, Nuclei and Atoms', and additionally including data for nuclei with Z = 101 - 130. It provides atomic mass, mass excess, nuclear binding energy, nucleon separation energies, Q-values, and nucleon residual interaction parameters for atomic nuclei of the isotope Pa-284 (Protactinium, atomic number Z = 91, mass number A = 284).

  12. Atomic Mass and Nuclear Binding Energy for Pa-285 (Protactinium)

    NASA Astrophysics Data System (ADS)

    Sukhoruchkin, S. I.; Soroko, Z. N.

    This document is part of the Supplement containing the complete sets of data of Subvolume B `Nuclei with Z = 55 - 100' of Volume 22 `Nuclear Binding Energies and Atomic Masses' of Landolt-Börnstein - Group I `Elementary Particles, Nuclei and Atoms', and additionally including data for nuclei with Z = 101 - 130. It provides atomic mass, mass excess, nuclear binding energy, nucleon separation energies, Q-values, and nucleon residual interaction parameters for atomic nuclei of the isotope Pa-285 (Protactinium, atomic number Z = 91, mass number A = 285).

  13. Atomic Mass and Nuclear Binding Energy for Pa-249 (Protactinium)

    NASA Astrophysics Data System (ADS)

    Sukhoruchkin, S. I.; Soroko, Z. N.

    This document is part of the Supplement containing the complete sets of data of Subvolume B `Nuclei with Z = 55 - 100' of Volume 22 `Nuclear Binding Energies and Atomic Masses' of Landolt-Börnstein - Group I `Elementary Particles, Nuclei and Atoms', and additionally including data for nuclei with Z = 101 - 130. It provides atomic mass, mass excess, nuclear binding energy, nucleon separation energies, Q-values, and nucleon residual interaction parameters for atomic nuclei of the isotope Pa-249 (Protactinium, atomic number Z = 91, mass number A = 249).

  14. Atomic Mass and Nuclear Binding Energy for Pa-260 (Protactinium)

    NASA Astrophysics Data System (ADS)

    Sukhoruchkin, S. I.; Soroko, Z. N.

    This document is part of the Supplement containing the complete sets of data of Subvolume B `Nuclei with Z = 55 - 100' of Volume 22 `Nuclear Binding Energies and Atomic Masses' of Landolt-Börnstein - Group I `Elementary Particles, Nuclei and Atoms', and additionally including data for nuclei with Z = 101 - 130. It provides atomic mass, mass excess, nuclear binding energy, nucleon separation energies, Q-values, and nucleon residual interaction parameters for atomic nuclei of the isotope Pa-260 (Protactinium, atomic number Z = 91, mass number A = 260).

  15. Atomic Mass and Nuclear Binding Energy for Pa-293 (Protactinium)

    NASA Astrophysics Data System (ADS)

    Sukhoruchkin, S. I.; Soroko, Z. N.

    This document is part of the Supplement containing the complete sets of data of Subvolume B `Nuclei with Z = 55 - 100' of Volume 22 `Nuclear Binding Energies and Atomic Masses' of Landolt-Börnstein - Group I `Elementary Particles, Nuclei and Atoms', and additionally including data for nuclei with Z = 101 - 130. It provides atomic mass, mass excess, nuclear binding energy, nucleon separation energies, Q-values, and nucleon residual interaction parameters for atomic nuclei of the isotope Pa-293 (Protactinium, atomic number Z = 91, mass number A = 293).

  16. Atomic Mass and Nuclear Binding Energy for Pa-265 (Protactinium)

    NASA Astrophysics Data System (ADS)

    Sukhoruchkin, S. I.; Soroko, Z. N.

    This document is part of the Supplement containing the complete sets of data of Subvolume B `Nuclei with Z = 55 - 100' of Volume 22 `Nuclear Binding Energies and Atomic Masses' of Landolt-Börnstein - Group I `Elementary Particles, Nuclei and Atoms', and additionally including data for nuclei with Z = 101 - 130. It provides atomic mass, mass excess, nuclear binding energy, nucleon separation energies, Q-values, and nucleon residual interaction parameters for atomic nuclei of the isotope Pa-265 (Protactinium, atomic number Z = 91, mass number A = 265).

  17. Atomic Mass and Nuclear Binding Energy for Pa-268 (Protactinium)

    NASA Astrophysics Data System (ADS)

    Sukhoruchkin, S. I.; Soroko, Z. N.

    This document is part of the Supplement containing the complete sets of data of Subvolume B `Nuclei with Z = 55 - 100' of Volume 22 `Nuclear Binding Energies and Atomic Masses' of Landolt-Börnstein - Group I `Elementary Particles, Nuclei and Atoms', and additionally including data for nuclei with Z = 101 - 130. It provides atomic mass, mass excess, nuclear binding energy, nucleon separation energies, Q-values, and nucleon residual interaction parameters for atomic nuclei of the isotope Pa-268 (Protactinium, atomic number Z = 91, mass number A = 268).

  18. Atomic Mass and Nuclear Binding Energy for Pa-271 (Protactinium)

    NASA Astrophysics Data System (ADS)

    Sukhoruchkin, S. I.; Soroko, Z. N.

    This document is part of the Supplement containing the complete sets of data of Subvolume B `Nuclei with Z = 55 - 100' of Volume 22 `Nuclear Binding Energies and Atomic Masses' of Landolt-Börnstein - Group I `Elementary Particles, Nuclei and Atoms', and additionally including data for nuclei with Z = 101 - 130. It provides atomic mass, mass excess, nuclear binding energy, nucleon separation energies, Q-values, and nucleon residual interaction parameters for atomic nuclei of the isotope Pa-271 (Protactinium, atomic number Z = 91, mass number A = 271).

  19. Atomic Mass and Nuclear Binding Energy for Pa-258 (Protactinium)

    NASA Astrophysics Data System (ADS)

    Sukhoruchkin, S. I.; Soroko, Z. N.

    This document is part of the Supplement containing the complete sets of data of Subvolume B `Nuclei with Z = 55 - 100' of Volume 22 `Nuclear Binding Energies and Atomic Masses' of Landolt-Börnstein - Group I `Elementary Particles, Nuclei and Atoms', and additionally including data for nuclei with Z = 101 - 130. It provides atomic mass, mass excess, nuclear binding energy, nucleon separation energies, Q-values, and nucleon residual interaction parameters for atomic nuclei of the isotope Pa-258 (Protactinium, atomic number Z = 91, mass number A = 258).

  20. Atomic Mass and Nuclear Binding Energy for Pa-262 (Protactinium)

    NASA Astrophysics Data System (ADS)

    Sukhoruchkin, S. I.; Soroko, Z. N.

    This document is part of the Supplement containing the complete sets of data of Subvolume B `Nuclei with Z = 55 - 100' of Volume 22 `Nuclear Binding Energies and Atomic Masses' of Landolt-Börnstein - Group I `Elementary Particles, Nuclei and Atoms', and additionally including data for nuclei with Z = 101 - 130. It provides atomic mass, mass excess, nuclear binding energy, nucleon separation energies, Q-values, and nucleon residual interaction parameters for atomic nuclei of the isotope Pa-262 (Protactinium, atomic number Z = 91, mass number A = 262).

  1. Atomic Mass and Nuclear Binding Energy for Pa-251 (Protactinium)

    NASA Astrophysics Data System (ADS)

    Sukhoruchkin, S. I.; Soroko, Z. N.

    This document is part of the Supplement containing the complete sets of data of Subvolume B `Nuclei with Z = 55 - 100' of Volume 22 `Nuclear Binding Energies and Atomic Masses' of Landolt-Börnstein - Group I `Elementary Particles, Nuclei and Atoms', and additionally including data for nuclei with Z = 101 - 130. It provides atomic mass, mass excess, nuclear binding energy, nucleon separation energies, Q-values, and nucleon residual interaction parameters for atomic nuclei of the isotope Pa-251 (Protactinium, atomic number Z = 91, mass number A = 251).

  2. Atomic Mass and Nuclear Binding Energy for Pa-259 (Protactinium)

    NASA Astrophysics Data System (ADS)

    Sukhoruchkin, S. I.; Soroko, Z. N.

    This document is part of the Supplement containing the complete sets of data of Subvolume B `Nuclei with Z = 55 - 100' of Volume 22 `Nuclear Binding Energies and Atomic Masses' of Landolt-Börnstein - Group I `Elementary Particles, Nuclei and Atoms', and additionally including data for nuclei with Z = 101 - 130. It provides atomic mass, mass excess, nuclear binding energy, nucleon separation energies, Q-values, and nucleon residual interaction parameters for atomic nuclei of the isotope Pa-259 (Protactinium, atomic number Z = 91, mass number A = 259).

  3. Atomic Mass and Nuclear Binding Energy for Pa-304 (Protactinium)

    NASA Astrophysics Data System (ADS)

    Sukhoruchkin, S. I.; Soroko, Z. N.

    This document is part of the Supplement containing the complete sets of data of Subvolume B `Nuclei with Z = 55 - 100' of Volume 22 `Nuclear Binding Energies and Atomic Masses' of Landolt-Börnstein - Group I `Elementary Particles, Nuclei and Atoms', and additionally including data for nuclei with Z = 101 - 130. It provides atomic mass, mass excess, nuclear binding energy, nucleon separation energies, Q-values, and nucleon residual interaction parameters for atomic nuclei of the isotope Pa-304 (Protactinium, atomic number Z = 91, mass number A = 304).

  4. Atomic Mass and Nuclear Binding Energy for Pa-275 (Protactinium)

    NASA Astrophysics Data System (ADS)

    Sukhoruchkin, S. I.; Soroko, Z. N.

    This document is part of the Supplement containing the complete sets of data of Subvolume B `Nuclei with Z = 55 - 100' of Volume 22 `Nuclear Binding Energies and Atomic Masses' of Landolt-Börnstein - Group I `Elementary Particles, Nuclei and Atoms', and additionally including data for nuclei with Z = 101 - 130. It provides atomic mass, mass excess, nuclear binding energy, nucleon separation energies, Q-values, and nucleon residual interaction parameters for atomic nuclei of the isotope Pa-275 (Protactinium, atomic number Z = 91, mass number A = 275).

  5. Atomic Mass and Nuclear Binding Energy for Pa-300 (Protactinium)

    NASA Astrophysics Data System (ADS)

    Sukhoruchkin, S. I.; Soroko, Z. N.

    This document is part of the Supplement containing the complete sets of data of Subvolume B `Nuclei with Z = 55 - 100' of Volume 22 `Nuclear Binding Energies and Atomic Masses' of Landolt-Börnstein - Group I `Elementary Particles, Nuclei and Atoms', and additionally including data for nuclei with Z = 101 - 130. It provides atomic mass, mass excess, nuclear binding energy, nucleon separation energies, Q-values, and nucleon residual interaction parameters for atomic nuclei of the isotope Pa-300 (Protactinium, atomic number Z = 91, mass number A = 300).

  6. Atomic Mass and Nuclear Binding Energy for Pa-301 (Protactinium)

    NASA Astrophysics Data System (ADS)

    Sukhoruchkin, S. I.; Soroko, Z. N.

    This document is part of the Supplement containing the complete sets of data of Subvolume B `Nuclei with Z = 55 - 100' of Volume 22 `Nuclear Binding Energies and Atomic Masses' of Landolt-Börnstein - Group I `Elementary Particles, Nuclei and Atoms', and additionally including data for nuclei with Z = 101 - 130. It provides atomic mass, mass excess, nuclear binding energy, nucleon separation energies, Q-values, and nucleon residual interaction parameters for atomic nuclei of the isotope Pa-301 (Protactinium, atomic number Z = 91, mass number A = 301).

  7. Atomic Mass and Nuclear Binding Energy for Pa-254 (Protactinium)

    NASA Astrophysics Data System (ADS)

    Sukhoruchkin, S. I.; Soroko, Z. N.

    This document is part of the Supplement containing the complete sets of data of Subvolume B `Nuclei with Z = 55 - 100' of Volume 22 `Nuclear Binding Energies and Atomic Masses' of Landolt-Börnstein - Group I `Elementary Particles, Nuclei and Atoms', and additionally including data for nuclei with Z = 101 - 130. It provides atomic mass, mass excess, nuclear binding energy, nucleon separation energies, Q-values, and nucleon residual interaction parameters for atomic nuclei of the isotope Pa-254 (Protactinium, atomic number Z = 91, mass number A = 254).

  8. Atomic Mass and Nuclear Binding Energy for Pa-290 (Protactinium)

    NASA Astrophysics Data System (ADS)

    Sukhoruchkin, S. I.; Soroko, Z. N.

    This document is part of the Supplement containing the complete sets of data of Subvolume B `Nuclei with Z = 55 - 100' of Volume 22 `Nuclear Binding Energies and Atomic Masses' of Landolt-Börnstein - Group I `Elementary Particles, Nuclei and Atoms', and additionally including data for nuclei with Z = 101 - 130. It provides atomic mass, mass excess, nuclear binding energy, nucleon separation energies, Q-values, and nucleon residual interaction parameters for atomic nuclei of the isotope Pa-290 (Protactinium, atomic number Z = 91, mass number A = 290).

  9. Atomic Mass and Nuclear Binding Energy for Pa-257 (Protactinium)

    NASA Astrophysics Data System (ADS)

    Sukhoruchkin, S. I.; Soroko, Z. N.

    This document is part of the Supplement containing the complete sets of data of Subvolume B `Nuclei with Z = 55 - 100' of Volume 22 `Nuclear Binding Energies and Atomic Masses' of Landolt-Börnstein - Group I `Elementary Particles, Nuclei and Atoms', and additionally including data for nuclei with Z = 101 - 130. It provides atomic mass, mass excess, nuclear binding energy, nucleon separation energies, Q-values, and nucleon residual interaction parameters for atomic nuclei of the isotope Pa-257 (Protactinium, atomic number Z = 91, mass number A = 257).

  10. Atomic Mass and Nuclear Binding Energy for Pa-315 (Protactinium)

    NASA Astrophysics Data System (ADS)

    Sukhoruchkin, S. I.; Soroko, Z. N.

    This document is part of the Supplement containing the complete sets of data of Subvolume B `Nuclei with Z = 55 - 100' of Volume 22 `Nuclear Binding Energies and Atomic Masses' of Landolt-Börnstein - Group I `Elementary Particles, Nuclei and Atoms', and additionally including data for nuclei with Z = 101 - 130. It provides atomic mass, mass excess, nuclear binding energy, nucleon separation energies, Q-values, and nucleon residual interaction parameters for atomic nuclei of the isotope Pa-315 (Protactinium, atomic number Z = 91, mass number A = 315).

  11. Atomic Mass and Nuclear Binding Energy for Pa-296 (Protactinium)

    NASA Astrophysics Data System (ADS)

    Sukhoruchkin, S. I.; Soroko, Z. N.

    This document is part of the Supplement containing the complete sets of data of Subvolume B `Nuclei with Z = 55 - 100' of Volume 22 `Nuclear Binding Energies and Atomic Masses' of Landolt-Börnstein - Group I `Elementary Particles, Nuclei and Atoms', and additionally including data for nuclei with Z = 101 - 130. It provides atomic mass, mass excess, nuclear binding energy, nucleon separation energies, Q-values, and nucleon residual interaction parameters for atomic nuclei of the isotope Pa-296 (Protactinium, atomic number Z = 91, mass number A = 296).

  12. Atomic Mass and Nuclear Binding Energy for Pa-264 (Protactinium)

    NASA Astrophysics Data System (ADS)

    Sukhoruchkin, S. I.; Soroko, Z. N.

    This document is part of the Supplement containing the complete sets of data of Subvolume B `Nuclei with Z = 55 - 100' of Volume 22 `Nuclear Binding Energies and Atomic Masses' of Landolt-Börnstein - Group I `Elementary Particles, Nuclei and Atoms', and additionally including data for nuclei with Z = 101 - 130. It provides atomic mass, mass excess, nuclear binding energy, nucleon separation energies, Q-values, and nucleon residual interaction parameters for atomic nuclei of the isotope Pa-264 (Protactinium, atomic number Z = 91, mass number A = 264).

  13. Atomic Mass and Nuclear Binding Energy for Pa-287 (Protactinium)

    NASA Astrophysics Data System (ADS)

    Sukhoruchkin, S. I.; Soroko, Z. N.

    This document is part of the Supplement containing the complete sets of data of Subvolume B `Nuclei with Z = 55 - 100' of Volume 22 `Nuclear Binding Energies and Atomic Masses' of Landolt-Börnstein - Group I `Elementary Particles, Nuclei and Atoms', and additionally including data for nuclei with Z = 101 - 130. It provides atomic mass, mass excess, nuclear binding energy, nucleon separation energies, Q-values, and nucleon residual interaction parameters for atomic nuclei of the isotope Pa-287 (Protactinium, atomic number Z = 91, mass number A = 287).

  14. Atomic Mass and Nuclear Binding Energy for Pa-250 (Protactinium)

    NASA Astrophysics Data System (ADS)

    Sukhoruchkin, S. I.; Soroko, Z. N.

    This document is part of the Supplement containing the complete sets of data of Subvolume B `Nuclei with Z = 55 - 100' of Volume 22 `Nuclear Binding Energies and Atomic Masses' of Landolt-Börnstein - Group I `Elementary Particles, Nuclei and Atoms', and additionally including data for nuclei with Z = 101 - 130. It provides atomic mass, mass excess, nuclear binding energy, nucleon separation energies, Q-values, and nucleon residual interaction parameters for atomic nuclei of the isotope Pa-250 (Protactinium, atomic number Z = 91, mass number A = 250).

  15. Atomic Mass and Nuclear Binding Energy for Pa-277 (Protactinium)

    NASA Astrophysics Data System (ADS)

    Sukhoruchkin, S. I.; Soroko, Z. N.

    This document is part of the Supplement containing the complete sets of data of Subvolume B `Nuclei with Z = 55 - 100' of Volume 22 `Nuclear Binding Energies and Atomic Masses' of Landolt-Börnstein - Group I `Elementary Particles, Nuclei and Atoms', and additionally including data for nuclei with Z = 101 - 130. It provides atomic mass, mass excess, nuclear binding energy, nucleon separation energies, Q-values, and nucleon residual interaction parameters for atomic nuclei of the isotope Pa-277 (Protactinium, atomic number Z = 91, mass number A = 277).

  16. Atomic Mass and Nuclear Binding Energy for Pa-306 (Protactinium)

    NASA Astrophysics Data System (ADS)

    Sukhoruchkin, S. I.; Soroko, Z. N.

    This document is part of the Supplement containing the complete sets of data of Subvolume B `Nuclei with Z = 55 - 100' of Volume 22 `Nuclear Binding Energies and Atomic Masses' of Landolt-Börnstein - Group I `Elementary Particles, Nuclei and Atoms', and additionally including data for nuclei with Z = 101 - 130. It provides atomic mass, mass excess, nuclear binding energy, nucleon separation energies, Q-values, and nucleon residual interaction parameters for atomic nuclei of the isotope Pa-306 (Protactinium, atomic number Z = 91, mass number A = 306).

  17. Atomic Mass and Nuclear Binding Energy for Pa-316 (Protactinium)

    NASA Astrophysics Data System (ADS)

    Sukhoruchkin, S. I.; Soroko, Z. N.

    This document is part of the Supplement containing the complete sets of data of Subvolume B `Nuclei with Z = 55 - 100' of Volume 22 `Nuclear Binding Energies and Atomic Masses' of Landolt-Börnstein - Group I `Elementary Particles, Nuclei and Atoms', and additionally including data for nuclei with Z = 101 - 130. It provides atomic mass, mass excess, nuclear binding energy, nucleon separation energies, Q-values, and nucleon residual interaction parameters for atomic nuclei of the isotope Pa-316 (Protactinium, atomic number Z = 91, mass number A = 316).

  18. Atomic Mass and Nuclear Binding Energy for Pa-289 (Protactinium)

    NASA Astrophysics Data System (ADS)

    Sukhoruchkin, S. I.; Soroko, Z. N.

    This document is part of the Supplement containing the complete sets of data of Subvolume B `Nuclei with Z = 55 - 100' of Volume 22 `Nuclear Binding Energies and Atomic Masses' of Landolt-Börnstein - Group I `Elementary Particles, Nuclei and Atoms', and additionally including data for nuclei with Z = 101 - 130. It provides atomic mass, mass excess, nuclear binding energy, nucleon separation energies, Q-values, and nucleon residual interaction parameters for atomic nuclei of the isotope Pa-289 (Protactinium, atomic number Z = 91, mass number A = 289).

  19. Atomic Mass and Nuclear Binding Energy for Pa-283 (Protactinium)

    NASA Astrophysics Data System (ADS)

    Sukhoruchkin, S. I.; Soroko, Z. N.

    This document is part of the Supplement containing the complete sets of data of Subvolume B `Nuclei with Z = 55 - 100' of Volume 22 `Nuclear Binding Energies and Atomic Masses' of Landolt-Börnstein - Group I `Elementary Particles, Nuclei and Atoms', and additionally including data for nuclei with Z = 101 - 130. It provides atomic mass, mass excess, nuclear binding energy, nucleon separation energies, Q-values, and nucleon residual interaction parameters for atomic nuclei of the isotope Pa-283 (Protactinium, atomic number Z = 91, mass number A = 283).

  20. Atomic Mass and Nuclear Binding Energy for Pa-294 (Protactinium)

    NASA Astrophysics Data System (ADS)

    Sukhoruchkin, S. I.; Soroko, Z. N.

    This document is part of the Supplement containing the complete sets of data of Subvolume B `Nuclei with Z = 55 - 100' of Volume 22 `Nuclear Binding Energies and Atomic Masses' of Landolt-Börnstein - Group I `Elementary Particles, Nuclei and Atoms', and additionally including data for nuclei with Z = 101 - 130. It provides atomic mass, mass excess, nuclear binding energy, nucleon separation energies, Q-values, and nucleon residual interaction parameters for atomic nuclei of the isotope Pa-294 (Protactinium, atomic number Z = 91, mass number A = 294).

  1. Atomic Mass and Nuclear Binding Energy for Pa-281 (Protactinium)

    NASA Astrophysics Data System (ADS)

    Sukhoruchkin, S. I.; Soroko, Z. N.

    This document is part of the Supplement containing the complete sets of data of Subvolume B `Nuclei with Z = 55 - 100' of Volume 22 `Nuclear Binding Energies and Atomic Masses' of Landolt-Börnstein - Group I `Elementary Particles, Nuclei and Atoms', and additionally including data for nuclei with Z = 101 - 130. It provides atomic mass, mass excess, nuclear binding energy, nucleon separation energies, Q-values, and nucleon residual interaction parameters for atomic nuclei of the isotope Pa-281 (Protactinium, atomic number Z = 91, mass number A = 281).

  2. Atomic Mass and Nuclear Binding Energy for Pa-288 (Protactinium)

    NASA Astrophysics Data System (ADS)

    Sukhoruchkin, S. I.; Soroko, Z. N.

    This document is part of the Supplement containing the complete sets of data of Subvolume B `Nuclei with Z = 55 - 100' of Volume 22 `Nuclear Binding Energies and Atomic Masses' of Landolt-Börnstein - Group I `Elementary Particles, Nuclei and Atoms', and additionally including data for nuclei with Z = 101 - 130. It provides atomic mass, mass excess, nuclear binding energy, nucleon separation energies, Q-values, and nucleon residual interaction parameters for atomic nuclei of the isotope Pa-288 (Protactinium, atomic number Z = 91, mass number A = 288).

  3. Atomic Mass and Nuclear Binding Energy for Pa-276 (Protactinium)

    NASA Astrophysics Data System (ADS)

    Sukhoruchkin, S. I.; Soroko, Z. N.

    This document is part of the Supplement containing the complete sets of data of Subvolume B `Nuclei with Z = 55 - 100' of Volume 22 `Nuclear Binding Energies and Atomic Masses' of Landolt-Börnstein - Group I `Elementary Particles, Nuclei and Atoms', and additionally including data for nuclei with Z = 101 - 130. It provides atomic mass, mass excess, nuclear binding energy, nucleon separation energies, Q-values, and nucleon residual interaction parameters for atomic nuclei of the isotope Pa-276 (Protactinium, atomic number Z = 91, mass number A = 276).

  4. Atomic Mass and Nuclear Binding Energy for Pa-269 (Protactinium)

    NASA Astrophysics Data System (ADS)

    Sukhoruchkin, S. I.; Soroko, Z. N.

    This document is part of the Supplement containing the complete sets of data of Subvolume B `Nuclei with Z = 55 - 100' of Volume 22 `Nuclear Binding Energies and Atomic Masses' of Landolt-Börnstein - Group I `Elementary Particles, Nuclei and Atoms', and additionally including data for nuclei with Z = 101 - 130. It provides atomic mass, mass excess, nuclear binding energy, nucleon separation energies, Q-values, and nucleon residual interaction parameters for atomic nuclei of the isotope Pa-269 (Protactinium, atomic number Z = 91, mass number A = 269).

  5. Atomic Mass and Nuclear Binding Energy for Pa-307 (Protactinium)

    NASA Astrophysics Data System (ADS)

    Sukhoruchkin, S. I.; Soroko, Z. N.

    This document is part of the Supplement containing the complete sets of data of Subvolume B `Nuclei with Z = 55 - 100' of Volume 22 `Nuclear Binding Energies and Atomic Masses' of Landolt-Börnstein - Group I `Elementary Particles, Nuclei and Atoms', and additionally including data for nuclei with Z = 101 - 130. It provides atomic mass, mass excess, nuclear binding energy, nucleon separation energies, Q-values, and nucleon residual interaction parameters for atomic nuclei of the isotope Pa-307 (Protactinium, atomic number Z = 91, mass number A = 307).

  6. Atomic Mass and Nuclear Binding Energy for Pa-286 (Protactinium)

    NASA Astrophysics Data System (ADS)

    Sukhoruchkin, S. I.; Soroko, Z. N.

    This document is part of the Supplement containing the complete sets of data of Subvolume B `Nuclei with Z = 55 - 100' of Volume 22 `Nuclear Binding Energies and Atomic Masses' of Landolt-Börnstein - Group I `Elementary Particles, Nuclei and Atoms', and additionally including data for nuclei with Z = 101 - 130. It provides atomic mass, mass excess, nuclear binding energy, nucleon separation energies, Q-values, and nucleon residual interaction parameters for atomic nuclei of the isotope Pa-286 (Protactinium, atomic number Z = 91, mass number A = 286).

  7. Atomic Mass and Nuclear Binding Energy for Pa-295 (Protactinium)

    NASA Astrophysics Data System (ADS)

    Sukhoruchkin, S. I.; Soroko, Z. N.

    This document is part of the Supplement containing the complete sets of data of Subvolume B `Nuclei with Z = 55 - 100' of Volume 22 `Nuclear Binding Energies and Atomic Masses' of Landolt-Börnstein - Group I `Elementary Particles, Nuclei and Atoms', and additionally including data for nuclei with Z = 101 - 130. It provides atomic mass, mass excess, nuclear binding energy, nucleon separation energies, Q-values, and nucleon residual interaction parameters for atomic nuclei of the isotope Pa-295 (Protactinium, atomic number Z = 91, mass number A = 295).

  8. Atomic Mass and Nuclear Binding Energy for Pa-298 (Protactinium)

    NASA Astrophysics Data System (ADS)

    Sukhoruchkin, S. I.; Soroko, Z. N.

    This document is part of the Supplement containing the complete sets of data of Subvolume B `Nuclei with Z = 55 - 100' of Volume 22 `Nuclear Binding Energies and Atomic Masses' of Landolt-Börnstein - Group I `Elementary Particles, Nuclei and Atoms', and additionally including data for nuclei with Z = 101 - 130. It provides atomic mass, mass excess, nuclear binding energy, nucleon separation energies, Q-values, and nucleon residual interaction parameters for atomic nuclei of the isotope Pa-298 (Protactinium, atomic number Z = 91, mass number A = 298).

  9. Atomic Mass and Nuclear Binding Energy for Pa-274 (Protactinium)

    NASA Astrophysics Data System (ADS)

    Sukhoruchkin, S. I.; Soroko, Z. N.

    This document is part of the Supplement containing the complete sets of data of Subvolume B `Nuclei with Z = 55 - 100' of Volume 22 `Nuclear Binding Energies and Atomic Masses' of Landolt-Börnstein - Group I `Elementary Particles, Nuclei and Atoms', and additionally including data for nuclei with Z = 101 - 130. It provides atomic mass, mass excess, nuclear binding energy, nucleon separation energies, Q-values, and nucleon residual interaction parameters for atomic nuclei of the isotope Pa-274 (Protactinium, atomic number Z = 91, mass number A = 274).

  10. Atomic Mass and Nuclear Binding Energy for Pa-270 (Protactinium)

    NASA Astrophysics Data System (ADS)

    Sukhoruchkin, S. I.; Soroko, Z. N.

    This document is part of the Supplement containing the complete sets of data of Subvolume B `Nuclei with Z = 55 - 100' of Volume 22 `Nuclear Binding Energies and Atomic Masses' of Landolt-Börnstein - Group I `Elementary Particles, Nuclei and Atoms', and additionally including data for nuclei with Z = 101 - 130. It provides atomic mass, mass excess, nuclear binding energy, nucleon separation energies, Q-values, and nucleon residual interaction parameters for atomic nuclei of the isotope Pa-270 (Protactinium, atomic number Z = 91, mass number A = 270).

  11. Atomic Mass and Nuclear Binding Energy for Pa-266 (Protactinium)

    NASA Astrophysics Data System (ADS)

    Sukhoruchkin, S. I.; Soroko, Z. N.

    This document is part of the Supplement containing the complete sets of data of Subvolume B `Nuclei with Z = 55 - 100' of Volume 22 `Nuclear Binding Energies and Atomic Masses' of Landolt-Börnstein - Group I `Elementary Particles, Nuclei and Atoms', and additionally including data for nuclei with Z = 101 - 130. It provides atomic mass, mass excess, nuclear binding energy, nucleon separation energies, Q-values, and nucleon residual interaction parameters for atomic nuclei of the isotope Pa-266 (Protactinium, atomic number Z = 91, mass number A = 266).

  12. Atomic Mass and Nuclear Binding Energy for Pa-256 (Protactinium)

    NASA Astrophysics Data System (ADS)

    Sukhoruchkin, S. I.; Soroko, Z. N.

    This document is part of the Supplement containing the complete sets of data of Subvolume B `Nuclei with Z = 55 - 100' of Volume 22 `Nuclear Binding Energies and Atomic Masses' of Landolt-Börnstein - Group I `Elementary Particles, Nuclei and Atoms', and additionally including data for nuclei with Z = 101 - 130. It provides atomic mass, mass excess, nuclear binding energy, nucleon separation energies, Q-values, and nucleon residual interaction parameters for atomic nuclei of the isotope Pa-256 (Protactinium, atomic number Z = 91, mass number A = 256).

  13. Atomic Mass and Nuclear Binding Energy for Pa-278 (Protactinium)

    NASA Astrophysics Data System (ADS)

    Sukhoruchkin, S. I.; Soroko, Z. N.

    This document is part of the Supplement containing the complete sets of data of Subvolume B `Nuclei with Z = 55 - 100' of Volume 22 `Nuclear Binding Energies and Atomic Masses' of Landolt-Börnstein - Group I `Elementary Particles, Nuclei and Atoms', and additionally including data for nuclei with Z = 101 - 130. It provides atomic mass, mass excess, nuclear binding energy, nucleon separation energies, Q-values, and nucleon residual interaction parameters for atomic nuclei of the isotope Pa-278 (Protactinium, atomic number Z = 91, mass number A = 278).

  14. Atomic Mass and Nuclear Binding Energy for Pa-267 (Protactinium)

    NASA Astrophysics Data System (ADS)

    Sukhoruchkin, S. I.; Soroko, Z. N.

    This document is part of the Supplement containing the complete sets of data of Subvolume B `Nuclei with Z = 55 - 100' of Volume 22 `Nuclear Binding Energies and Atomic Masses' of Landolt-Börnstein - Group I `Elementary Particles, Nuclei and Atoms', and additionally including data for nuclei with Z = 101 - 130. It provides atomic mass, mass excess, nuclear binding energy, nucleon separation energies, Q-values, and nucleon residual interaction parameters for atomic nuclei of the isotope Pa-267 (Protactinium, atomic number Z = 91, mass number A = 267).

  15. Atomic Mass and Nuclear Binding Energy for Pa-252 (Protactinium)

    NASA Astrophysics Data System (ADS)

    Sukhoruchkin, S. I.; Soroko, Z. N.

    This document is part of the Supplement containing the complete sets of data of Subvolume B `Nuclei with Z = 55 - 100' of Volume 22 `Nuclear Binding Energies and Atomic Masses' of Landolt-Börnstein - Group I `Elementary Particles, Nuclei and Atoms', and additionally including data for nuclei with Z = 101 - 130. It provides atomic mass, mass excess, nuclear binding energy, nucleon separation energies, Q-values, and nucleon residual interaction parameters for atomic nuclei of the isotope Pa-252 (Protactinium, atomic number Z = 91, mass number A = 252).

  16. Atomic Mass and Nuclear Binding Energy for Pa-282 (Protactinium)

    NASA Astrophysics Data System (ADS)

    Sukhoruchkin, S. I.; Soroko, Z. N.

    This document is part of the Supplement containing the complete sets of data of Subvolume B `Nuclei with Z = 55 - 100' of Volume 22 `Nuclear Binding Energies and Atomic Masses' of Landolt-Börnstein - Group I `Elementary Particles, Nuclei and Atoms', and additionally including data for nuclei with Z = 101 - 130. It provides atomic mass, mass excess, nuclear binding energy, nucleon separation energies, Q-values, and nucleon residual interaction parameters for atomic nuclei of the isotope Pa-282 (Protactinium, atomic number Z = 91, mass number A = 282).

  17. Atomic Mass and Nuclear Binding Energy for Pa-253 (Protactinium)

    NASA Astrophysics Data System (ADS)

    Sukhoruchkin, S. I.; Soroko, Z. N.

    This document is part of the Supplement containing the complete sets of data of Subvolume B `Nuclei with Z = 55 - 100' of Volume 22 `Nuclear Binding Energies and Atomic Masses' of Landolt-Börnstein - Group I `Elementary Particles, Nuclei and Atoms', and additionally including data for nuclei with Z = 101 - 130. It provides atomic mass, mass excess, nuclear binding energy, nucleon separation energies, Q-values, and nucleon residual interaction parameters for atomic nuclei of the isotope Pa-253 (Protactinium, atomic number Z = 91, mass number A = 253).

  18. Atomic Mass and Nuclear Binding Energy for Pa-263 (Protactinium)

    NASA Astrophysics Data System (ADS)

    Sukhoruchkin, S. I.; Soroko, Z. N.

    This document is part of the Supplement containing the complete sets of data of Subvolume B `Nuclei with Z = 55 - 100' of Volume 22 `Nuclear Binding Energies and Atomic Masses' of Landolt-Börnstein - Group I `Elementary Particles, Nuclei and Atoms', and additionally including data for nuclei with Z = 101 - 130. It provides atomic mass, mass excess, nuclear binding energy, nucleon separation energies, Q-values, and nucleon residual interaction parameters for atomic nuclei of the isotope Pa-263 (Protactinium, atomic number Z = 91, mass number A = 263).

  19. Atomic Mass and Nuclear Binding Energy for Pa-261 (Protactinium)

    NASA Astrophysics Data System (ADS)

    Sukhoruchkin, S. I.; Soroko, Z. N.

    This document is part of the Supplement containing the complete sets of data of Subvolume B `Nuclei with Z = 55 - 100' of Volume 22 `Nuclear Binding Energies and Atomic Masses' of Landolt-Börnstein - Group I `Elementary Particles, Nuclei and Atoms', and additionally including data for nuclei with Z = 101 - 130. It provides atomic mass, mass excess, nuclear binding energy, nucleon separation energies, Q-values, and nucleon residual interaction parameters for atomic nuclei of the isotope Pa-261 (Protactinium, atomic number Z = 91, mass number A = 261).

  20. Atomic Mass and Nuclear Binding Energy for Pa-255 (Protactinium)

    NASA Astrophysics Data System (ADS)

    Sukhoruchkin, S. I.; Soroko, Z. N.

    This document is part of the Supplement containing the complete sets of data of Subvolume B `Nuclei with Z = 55 - 100' of Volume 22 `Nuclear Binding Energies and Atomic Masses' of Landolt-Börnstein - Group I `Elementary Particles, Nuclei and Atoms', and additionally including data for nuclei with Z = 101 - 130. It provides atomic mass, mass excess, nuclear binding energy, nucleon separation energies, Q-values, and nucleon residual interaction parameters for atomic nuclei of the isotope Pa-255 (Protactinium, atomic number Z = 91, mass number A = 255).

  1. Atomic Mass and Nuclear Binding Energy for Pa-314 (Protactinium)

    NASA Astrophysics Data System (ADS)

    Sukhoruchkin, S. I.; Soroko, Z. N.

    This document is part of the Supplement containing the complete sets of data of Subvolume B `Nuclei with Z = 55 - 100' of Volume 22 `Nuclear Binding Energies and Atomic Masses' of Landolt-Börnstein - Group I `Elementary Particles, Nuclei and Atoms', and additionally including data for nuclei with Z = 101 - 130. It provides atomic mass, mass excess, nuclear binding energy, nucleon separation energies, Q-values, and nucleon residual interaction parameters for atomic nuclei of the isotope Pa-314 (Protactinium, atomic number Z = 91, mass number A = 314).

  2. Atomic Mass and Nuclear Binding Energy for Pa-279 (Protactinium)

    NASA Astrophysics Data System (ADS)

    Sukhoruchkin, S. I.; Soroko, Z. N.

    This document is part of the Supplement containing the complete sets of data of Subvolume B `Nuclei with Z = 55 - 100' of Volume 22 `Nuclear Binding Energies and Atomic Masses' of Landolt-Börnstein - Group I `Elementary Particles, Nuclei and Atoms', and additionally including data for nuclei with Z = 101 - 130. It provides atomic mass, mass excess, nuclear binding energy, nucleon separation energies, Q-values, and nucleon residual interaction parameters for atomic nuclei of the isotope Pa-279 (Protactinium, atomic number Z = 91, mass number A = 279).

  3. Atomic Mass and Nuclear Binding Energy for Pa-292 (Protactinium)

    NASA Astrophysics Data System (ADS)

    Sukhoruchkin, S. I.; Soroko, Z. N.

    This document is part of the Supplement containing the complete sets of data of Subvolume B `Nuclei with Z = 55 - 100' of Volume 22 `Nuclear Binding Energies and Atomic Masses' of Landolt-Börnstein - Group I `Elementary Particles, Nuclei and Atoms', and additionally including data for nuclei with Z = 101 - 130. It provides atomic mass, mass excess, nuclear binding energy, nucleon separation energies, Q-values, and nucleon residual interaction parameters for atomic nuclei of the isotope Pa-292 (Protactinium, atomic number Z = 91, mass number A = 292).

  4. Atomic Mass and Nuclear Binding Energy for Pa-280 (Protactinium)

    NASA Astrophysics Data System (ADS)

    Sukhoruchkin, S. I.; Soroko, Z. N.

    This document is part of the Supplement containing the complete sets of data of Subvolume B `Nuclei with Z = 55 - 100' of Volume 22 `Nuclear Binding Energies and Atomic Masses' of Landolt-Börnstein - Group I `Elementary Particles, Nuclei and Atoms', and additionally including data for nuclei with Z = 101 - 130. It provides atomic mass, mass excess, nuclear binding energy, nucleon separation energies, Q-values, and nucleon residual interaction parameters for atomic nuclei of the isotope Pa-280 (Protactinium, atomic number Z = 91, mass number A = 280).

  5. Atomic Mass and Nuclear Binding Energy for Pa-272 (Protactinium)

    NASA Astrophysics Data System (ADS)

    Sukhoruchkin, S. I.; Soroko, Z. N.

    This document is part of the Supplement containing the complete sets of data of Subvolume B `Nuclei with Z = 55 - 100' of Volume 22 `Nuclear Binding Energies and Atomic Masses' of Landolt-Börnstein - Group I `Elementary Particles, Nuclei and Atoms', and additionally including data for nuclei with Z = 101 - 130. It provides atomic mass, mass excess, nuclear binding energy, nucleon separation energies, Q-values, and nucleon residual interaction parameters for atomic nuclei of the isotope Pa-272 (Protactinium, atomic number Z = 91, mass number A = 272).

  6. Atomic Mass and Nuclear Binding Energy for Pa-273 (Protactinium)

    NASA Astrophysics Data System (ADS)

    Sukhoruchkin, S. I.; Soroko, Z. N.

    This document is part of the Supplement containing the complete sets of data of Subvolume B `Nuclei with Z = 55 - 100' of Volume 22 `Nuclear Binding Energies and Atomic Masses' of Landolt-Börnstein - Group I `Elementary Particles, Nuclei and Atoms', and additionally including data for nuclei with Z = 101 - 130. It provides atomic mass, mass excess, nuclear binding energy, nucleon separation energies, Q-values, and nucleon residual interaction parameters for atomic nuclei of the isotope Pa-273 (Protactinium, atomic number Z = 91, mass number A = 273).

  7. Atomic Mass and Nuclear Binding Energy for Pa-299 (Protactinium)

    NASA Astrophysics Data System (ADS)

    Sukhoruchkin, S. I.; Soroko, Z. N.

    This document is part of the Supplement containing the complete sets of data of Subvolume B `Nuclei with Z = 55 - 100' of Volume 22 `Nuclear Binding Energies and Atomic Masses' of Landolt-Börnstein - Group I `Elementary Particles, Nuclei and Atoms', and additionally including data for nuclei with Z = 101 - 130. It provides atomic mass, mass excess, nuclear binding energy, nucleon separation energies, Q-values, and nucleon residual interaction parameters for atomic nuclei of the isotope Pa-299 (Protactinium, atomic number Z = 91, mass number A = 299).

  8. Atomic Mass and Nuclear Binding Energy for Pa-302 (Protactinium)

    NASA Astrophysics Data System (ADS)

    Sukhoruchkin, S. I.; Soroko, Z. N.

    This document is part of the Supplement containing the complete sets of data of Subvolume B `Nuclei with Z = 55 - 100' of Volume 22 `Nuclear Binding Energies and Atomic Masses' of Landolt-Börnstein - Group I `Elementary Particles, Nuclei and Atoms', and additionally including data for nuclei with Z = 101 - 130. It provides atomic mass, mass excess, nuclear binding energy, nucleon separation energies, Q-values, and nucleon residual interaction parameters for atomic nuclei of the isotope Pa-302 (Protactinium, atomic number Z = 91, mass number A = 302).

  9. Atomic Mass and Nuclear Binding Energy for Pa-303 (Protactinium)

    NASA Astrophysics Data System (ADS)

    Sukhoruchkin, S. I.; Soroko, Z. N.

    This document is part of the Supplement containing the complete sets of data of Subvolume B `Nuclei with Z = 55 - 100' of Volume 22 `Nuclear Binding Energies and Atomic Masses' of Landolt-Börnstein - Group I `Elementary Particles, Nuclei and Atoms', and additionally including data for nuclei with Z = 101 - 130. It provides atomic mass, mass excess, nuclear binding energy, nucleon separation energies, Q-values, and nucleon residual interaction parameters for atomic nuclei of the isotope Pa-303 (Protactinium, atomic number Z = 91, mass number A = 303).

  10. Atomic Mass and Nuclear Binding Energy for Pa-297 (Protactinium)

    NASA Astrophysics Data System (ADS)

    Sukhoruchkin, S. I.; Soroko, Z. N.

    This document is part of the Supplement containing the complete sets of data of Subvolume B `Nuclei with Z = 55 - 100' of Volume 22 `Nuclear Binding Energies and Atomic Masses' of Landolt-Börnstein - Group I `Elementary Particles, Nuclei and Atoms', and additionally including data for nuclei with Z = 101 - 130. It provides atomic mass, mass excess, nuclear binding energy, nucleon separation energies, Q-values, and nucleon residual interaction parameters for atomic nuclei of the isotope Pa-297 (Protactinium, atomic number Z = 91, mass number A = 297).

  11. Recovery of protactinium-231 and thorium-230 from cotter concentrate: pilot plant operatins and process development

    SciTech Connect

    Hertz, M.R.; Figgins, P.E.; Deal, W.R.

    1983-02-10

    The equipment and methods used to recover and purify 339 g of thorium-230 and 890 mg of protactinium-231 from 22 of the 1251 drums of Cotter Concentrate are described. The process developed was (1) dissolution at 100/sup 0/C in concentrated nitric acid and dilution to 2 to 3 molar acid, (2) filtration to remove undissolved solids (mostly silica filter aid), (3) extraction of uranium with di-sec-butyl-phenyl phophonate (DSBPP) in carbon tetrachloride, (4) extraction of both thorium and protactinium with tri-n-octylphosphine oxide (TOPO) in carbon tetrachloride followed by selective stripping of the thorium with dilute of sulfuric acid, (5) thorium purification using oxalic acid, (6) stripping protactinium from the TOPO with oxalic acid, and (7) protactinium purification through a sequence of steps. The development of the separation procedures, the design of the pilot plant, and the operating procedures are described in detail. Analytical procedures are given in an appendix. 8 figures, 4 tables.

  12. Relativistic small-core pseudopotentials for actinium, thorium, and protactinium.

    PubMed

    Weigand, Anna; Cao, Xiaoyan; Hangele, Tim; Dolg, Michael

    2014-04-03

    Small-core pseudopotentials for actinium, thorium, and protactinium have been energy-adjusted to multiconfiguration Dirac-Hartree-Fock reference data based on the Dirac-Coulomb-Breit Hamiltonian and the Fermi nucleus model. Corresponding optimized valence basis sets of polarized valence quadruple-ζ quality are presented. Atomic test calculations for the first four ionization potentials show satisfactory results at both the Hartree-Fock and the multireference averaged coupled-pair functional level. Highly correlated Fock-space coupled cluster calculations demonstrate that the new pseudopotentials yield ionization potentials, which are in excellent agreement with corresponding all-electron results and experimental data. The pseudopotentials and basis sets supplement a similar set previously published for uranium.

  13. Protactinium-thorium ratio as a proxy for ocean circulation

    NASA Astrophysics Data System (ADS)

    Balcerak, Ernie

    2011-12-01

    The Atlantic meridional overturning circulation (AMOC) transports water and heat over long distances in the Atlantic Ocean and is believed to have an important effect on Earth's climate. Knowing how strong the AMOC was in the past is essential to understanding past climate. One proxy researchers have used to assess the past strength of the AMOC is the sedimentary protactinium- thorium ratio (231Pa/230Th). Both 231Pa and 230Th are produced through decay of uranium at a constant rate in the ocean water column, but 230Th does not last long enough in the water to be transported away from the location where it was produced, while 231Pa has a longer residence time in the water. Therefore, sedimentary 231Pa/230Th ratios could provide information about the strength of past ocean circulation.

  14. Gastrointestinal absorption of protactinium, uranium, and neptunium in the hamster

    SciTech Connect

    Harrison, J.D.; Stather, J.W.

    1981-10-01

    The gastrointestinal absorption of protactinium, uranium, and neptunium in adult hamsters was measured. The actinide preparations were administered intragastrically and animals were kept 2 to 4 weeks prior to the radiochemical analysis of selected tissue samples. Total absorption was estimated using data for the distribution of the actinides after intravenous injection in soluble form. The values obtained were 3.9 and 0.22% for /sup 231/Pa citrate and /sup 231/Pa fluoride, respectively; 0.77 and 0.11% for /sup 233/U (uranyl) nitrate and /sup 233/U dioxide, respectively; and 0.06 and 0.05% for /sup 237/Np citrate and /sup 237/Np nitrate, respectively. The absorption factors recommended by the International Commission on Radiological Protection for use in calculating annual limits on intake for occupationally exposed workers are: 0.1% for all compounds of Pa; 5 and 0.2% for soluble hexavalent and relatively insoluble tetravalent forms of U, respectively; and 1.0% for all chemical forms of Np. The experimental basis for these values is discussed.

  15. Nuclear fission of neutron-deficient protactinium nuclides

    SciTech Connect

    Nishinaka, I.; Nagame, Y.; Tsukada, K.; Ikezoe, H.; Sueki, K.; Nakahara, H.; Tanikawa, M.; Ohtsuki, T.

    1997-08-01

    Fragment velocity, kinetic energy, mass yield, and element yield distributions in the fission of neutron-deficient Pa isotopes produced in the reactions of {sup 16}O and {sup 18}O on {sup 209}Bi have been measured at incident beam energies near and above the Coulomb barriers by the time-of-flight and radiochemical methods. An asymmetric mass-division component has been observed. Measured fission cross sections were compared with the results of statistical model calculations which take into account two fission barrier heights for symmetric and asymmetric yields. The fission barrier height deduced for the asymmetric fission is found slightly lower than that for the symmetric one. The difference between the two barrier heights in the fission of the present protactinium nuclides (N{approximately}135) is considerably smaller than that in the neutron-rich nuclide of {sup 233}Pa (N{approximately}142), indicating that the difference sensitively depends on the neutron number of the fissioning nuclide. {copyright} {ital 1997} {ital The American Physical Society}

  16. First principles LDA + U and GGA + U study of protactinium and protactinium oxides: dependence on the effective U parameter

    NASA Astrophysics Data System (ADS)

    Obodo, K. O.; Chetty, N.

    2013-04-01

    The electronic structure and properties of protactinium and its oxides (PaO and PaO2) have been studied within the framework of the local density approximation (LDA), the Perdew-Burke-Ernzerhof generalized gradient approximation [GGA(PBE)], LDA + U and GGA(PBE) + U implementations of density functional theory. The dependence of selected observables of these materials on the effective U parameter has been investigated in detail. The examined properties include lattice constants, bulk moduli, the effect of charge density distributions, the hybridization of the 5f orbital and the energy of formation for PaO and PaO2. The LDA gives better agreement with experiment for the bulk modulus than the GGA for Pa but the GGA gives better structural properties. We found that PaO is metallic and PaO2 is a Mott-Hubbard insulator. This is consistent with observations for the other actinide oxides. We discover that GGA and LDA incorrectly give metallic behavior for PaO2. The GGA(PBE) + U calculated indirect band gap of 3.48 eV reported for PaO2 is a prediction and should stimulate further studies of this material.

  17. First principles LDA + U and GGA + U study of protactinium and protactinium oxides: dependence on the effective U parameter.

    PubMed

    Obodo, K O; Chetty, N

    2013-04-10

    The electronic structure and properties of protactinium and its oxides (PaO and PaO2) have been studied within the framework of the local density approximation (LDA), the Perdew-Burke-Ernzerhof generalized gradient approximation [GGA(PBE)], LDA + U and GGA(PBE) + U implementations of density functional theory. The dependence of selected observables of these materials on the effective U parameter has been investigated in detail. The examined properties include lattice constants, bulk moduli, the effect of charge density distributions, the hybridization of the 5f orbital and the energy of formation for PaO and PaO2. The LDA gives better agreement with experiment for the bulk modulus than the GGA for Pa but the GGA gives better structural properties. We found that PaO is metallic and PaO2 is a Mott-Hubbard insulator. This is consistent with observations for the other actinide oxides. We discover that GGA and LDA incorrectly give metallic behavior for PaO2. The GGA(PBE) + U calculated indirect band gap of 3.48 eV reported for PaO2 is a prediction and should stimulate further studies of this material.

  18. EXAFS study of the speciation of protactinium(V) in aqueous hydrofluoric acid solutions.

    PubMed

    De Sio, Stéphanie M; Wilson, Richard E

    2014-12-01

    The speciation of protactinium(V) in hydrofluoric acid (HF) solutions was studied using X-ray absorption spectroscopy. Extended X-ray absorption fine structure measurements were performed on an aqueous solution of 0.05 M protactinium(V) with various HF concentrations ranging from 0.5 to 27 M in order to probe the protactinium coordination sphere with respect to the identity and number of coordinating ligands. The resulting fits to the spectra suggest the presence of an eight-coordinate homoleptic fluoro complex in highly concentrated fluoride solutions (27 M), with equilibrium between seven- and eight-coordinate fluoro complexes at moderate acidities, and in more dilute solutions, results indicate that one water molecule is likely to replace a fluoride in the first coordination sphere, at a distance of 2.54-2.57 Å. Comparisons of this chemistry with group V metals, niobium and tantalum, are presented, and the potential implications for these results on the hydrolytic behavior of protactinium in aqueous systems are discussed.

  19. An EXAFS study of the speciation of protactinium(V) in aqueous hydrofluoric acid solution

    SciTech Connect

    De Sio, Stephanie M.; Wilson, Richard E.

    2014-12-01

    The speciation of protactinium(V) in hydrofluoric acid (HF) solutions was studied using X-ray absorption spectroscopy. Extended X-ray absorption fine structure measurements were performed on an aqueous solution of 0.05 M protactinium(V) with various HF concentrations ranging from 0.5 to 27 M in order to probe the protactinium coordination sphere with respect to the identity and number of coordinating ligands. The resulting fits to the spectra suggest the presence of an eight-coordinate homoleptic fluoro complex in highly concentrated fluoride solutions (27 M), with equilibrium between seven- and eight-coordinate fluoro complexes at moderate acidities, and in more dilute solutions, results indicate that one water molecule is likely to replace a fluoride in the first coordination sphere, at a distance of 2.54-2.57 angstrom. Comparisons of this chemistry with group V metals, niobium and tantalum, are presented, and the potential implications for these results on the hydrolytic behavior of protactinium in aqueous systems are discussed.

  20. Metabolism and gastrointestinal absorption of neptunium and protactinium in adult baboons

    SciTech Connect

    Ralston, L.G.; Cohen, N.; Bhattacharyya, M.H.; Larsen, R.P.; Ayres, L.; Oldham, R.D.; Moretti, E.S.

    1985-01-01

    The metabolism of neptunium and protactinium was studied in adult female baboons following intravenous injection and intragastric intubation. Immediately following intravenous injection (10/sup -1/ to 10/sup -10/ mg Np per kg body wt), neptunium cleared rapidly from blood, deposited primarily in the skeleton (54 +- 5%) and liver (3 +- 0.2%), and was excreted predominantly via urine (40 +- 3%). For the first year post injection, neptunium was retained with a biological half-time of approx.100 days in liver and 1.5 +- 0.2 yr in bone. In comparison, injected protactinium (10/sup -9/ mg/kg) was retained in blood in higher concentrations and was initially eliminated in urine to a lesser extent (6 +- 3%). In vivo measurements indicated that protactinium was retained in bone (65 +- 0.3%) with a half-time of 3.5 +- 0.6 yr. Differences in the physicochemical states of the neptunium or protactinium solutions injected did not alter the metabolic behavior of these nuclides. The gastrointestinal absorption value for neptunium in two fasted baboons, sacrificed at 1 day post administration, was determined to be 0.92 +- 0.04%. Of the total amount of neptunium absorbed, 52 +- 3% was retained in bone, 6 +- 2% was in liver, and 42 +- 0.1% was excreted in urine. A method was developed to estimate GI absorption values for both nuclides in baboons which were not sacrificed. Absorption values calculated by this method for neptunium and protactinium in fasted baboons were 1.8 +- 0.8% and 0.65 +- 0.01%, respectively. Values for fed animals were 1 to 2 orders of magnitude less than those for fasted animals. 14 refs., 3 figs., 4 tabs. (DT)

  1. SEPARATION OF POLONIUM, PROTACTINIUM OR MIXTURES THEREOF IN AQUEOUS SOLUTION FROM BISMUTH, LEAD, ZIRCONIUM AND/OR COLUMBIUM VALUES

    DOEpatents

    Van Winkle, Q.; Kraus, K.A.

    1959-10-27

    A process is presented for separating polonium, protactinium, or mixtures thereof in aqueous solution from bismuth, zirconium, lead, and niobium values contained in the solution. The method comprises providing hydrochloric acid in the solution in a concentration of at least 5N. contacting the aqueous solution with a substantially waterimmiscible organic solvent such as diisopropyl ketone, and separating the aqueous phase containing the bismuth, zirconium, lead, and niobium from the organic extract phase containing the polonium, protactinium, or mixture thereof.

  2. Thermodynamical and structural study of protactinium(V) oxalate complexes in solution.

    PubMed

    Mendes, Mickaël; Hamadi, Séna; Le Naour, Claire; Roques, Jérôme; Jeanson, Aurélie; Den Auwer, Christophe; Moisy, Philippe; Topin, Sylvain; Aupiais, Jean; Hennig, Christoph; Di Giandomenico, Maria-Vita

    2010-11-01

    The complexation of protactinium(V) by oxalate was studied by X-ray absorption spectroscopy (XAS), density functional theory (DFT) calculations, capillary electrophoresis coupled with inductively coupled plasma mass spectrometry (CE-ICP-MS) and solvent extraction. XAS measurements showed unambiguously the presence of a short single oxo-bond, and the deduced structure agrees with theoretical calculations. CE-ICP-MS results indicated the formation of a highly charged anionic complex. The formation constants of PaO(C(2)O(4))(+), PaO(C(2)O(4))(2)(-), and PaO(C(2)O(4))(3)(3-) were determined from solvent extraction data by using protactinium at tracer scale (C(Pa) < 10(-10) M). Complexation reactions of Pa(V) with oxalate were found to be exothermic with relatively high positive entropic variation.

  3. Prediction of quantum many-body chaos in the protactinium atom

    NASA Astrophysics Data System (ADS)

    Viatkina, A. V.; Kozlov, M. G.; Flambaum, V. V.

    2017-02-01

    The energy-level spectrum of the protactinium atom (Pa, Z =91 ) is simulated with a configuration interaction calculation. Levels belonging to the separate manifolds of a given total angular momentum and parity Jπ exhibit distinct properties of many-body quantum chaos. Moreover, an extremely strong enhancement of small perturbations takes place. As an example, effective three-electron interaction is investigated and found to play a significant role in the system. Chaotic properties of the eigenstates allow one to develop a statistical theory and predict probabilities of different processes in chaotic systems.

  4. Protactinium-231 and thorium-230 abundances and high scavenging rates in the western arctic ocean

    PubMed

    Edmonds; Moran; Hoff; Smith; Edwards

    1998-04-17

    The Canadian Basin of the Arctic Ocean, largely ice covered and isolated from deep contact with the more dynamic Eurasian Basin by the Lomonosov Ridge, has historically been considered an area of low productivity and particle flux and sluggish circulation. High-sensitivity mass-spectrometric measurements of the naturally occurring radionuclides protactinium-231 and thorium-230 in the deep Canada Basin and on the adjacent shelf indicate high particle fluxes and scavenging rates in this region. The thorium-232 data suggest that offshore advection of particulate material from the shelves contributes to scavenging of reactive materials in areas of permanent ice cover.

  5. Energies and Electric Dipole Transitions for Low-Lying Levels of Protactinium IV and Uranium V

    NASA Astrophysics Data System (ADS)

    Ürer, Güldem; Özdemir, Leyla

    2012-02-01

    We have reported a relativistic multiconfiguration Dirac-Fock (MCDF) study on low-lying level structures of protactinium IV (Z =91) and uranium V (Z =92) ions. Excitation energies and electric dipole (E1) transition parameters (wavelengths, oscillator strengths, and transition rates) for these low-lying levels have been given. We have also investigated the influence of the transverse Breit and quantum electrodynamic (QED) contributions besides correlation effects on the level structure. A comparison has been made with a few available data for these ions in the literature.

  6. Protactinium-231 Dating of Carbonates by Thermal Ionization Mass Spectrometry: Implications for Quaternary Climate Change

    PubMed

    Edwards; Cheng; Murrell; Goldstein

    1997-05-02

    Measurement of protactinium-231 (231Pa) in carbonates by thermal ionization mass spectroscopy yields 231Pa ages that are more than 10 times more precise than those determined by decay counting. Carbonates between 10 and 250,000 years old can now be dated with 231Pa methods. Barbados corals that have identical 231Pa and thorium-230 (230Th) ages indicate that the timing of sea level change over parts of the last glacial cycle is consistent with the predictions of the Astronomical Theory. Two Devils Hole calcite subsamples record identical 231Pa and 230Th ages, suggesting that the chronology of this climate record is accurate.

  7. First structural characterization of a protactinium(V) single oxo bond in aqueous media.

    PubMed

    Le Naour, Claire; Trubert, Didier; Di Giandomenico, Maria V; Fillaux, Clara; Den Auwer, Christophe; Moisy, Philippe; Hennig, Christoph

    2005-12-12

    The present work describes the first structural studies of protactinium(V) in sulfuric and hydrofluoric acid media using X-ray absorption spectroscopy. The results show unambiguously the absence of the trans-dioxo bond that characterizes the other early actinide elements such as U and Np. In concentrated sulfuric acid (13 M), Pa(V) is proved to exhibit a single oxo bond as postulated in the literature for species in more dilute media. In a 0.5 M HF medium, XANES and EXAFS spectra indicate the absence of any oxo bond: Pa(V) exists in the form of a pure fluoro complex.

  8. Identification of transferrin as the main binding site for protactinium in rat blood serum.

    PubMed

    Taylor, D M; Farrow, L C

    1987-01-01

    The distribution of 233Pa in rat serum at periods between 5 and 50 min after i.v. injection of a solution of protactinium chloride was studied by gel chromatography. Sequential analysis of sera on Sephacryl S-300 and DEAE-Sephadex showed that 233Pa was associated only with the transferrin fraction of the serum proteins. This finding was confirmed by iso-electric focusing electrophoresis. In the cytosol fractions prepared from the liver and kidneys of the 233Pa injected rats the nuclide was also shown to be protein bound.

  9. Selected values of chemical thermodynamic properties: compounds of uranium, protactinium, thorium, actinium, and the alkali metals. Final report

    SciTech Connect

    Wagman, D.D.; Evans, W.H.; Parker, V.B.; Schumm, R.H.; Nuttall, R.L.

    1981-05-01

    This publication contains tables of recommended values for the standard enthalpies (heats) of formation, Gibbs (free) energies of formation, entropies, enthalpy contents and heat capacities at 298.15 K, and enthalpies of formation at O K for compounds of uranium, protactinium, thorium, actinium, lithium, sodium, potassium, rubidium, cesium, and francium.

  10. Design study of Thorium-232 and Protactinium-231 based fuel for long life BWR

    NASA Astrophysics Data System (ADS)

    Trianti, N.; Su'ud, Z.; Riyana, E. S.

    2012-06-01

    A preliminary design study for the utilization of thorium added with 231Pa based fuel on BWR type reactor has been performed. In the previous research utilization of fuel based Thorium-232 and Uranium-233 show 10 years operation time with maximum excess-reactivity about 4.075% dk/k. To increase reactor operation time and reduce excess-reactivity below 1% dk/k, Protactinium (Pa-231) is used as Burnable Poison. Protactinium-231 has very interesting neutronic properties, which enable the core to reduce initial excess-reactivity and simultaneously increase production of 233U to 231Pa in burn-up process. Optimizations of the content of 231Pa in the core enables the BWR core to sustain long period of operation time with reasonable burn-up reactivity swing. Based on the optimization of fuel element composition (Th and Pa) in various moderation ratio we can get reactor core with longer operation time, 20 ˜ 30 years operation without fuel shuffling or refuelling, with average power densities maximum of about 35 watt/cc, and maximum excess-reactivity 0.56% dk/k.

  11. Design study of Thorium-232 and Protactinium-231 based fuel for long life BWR

    SciTech Connect

    Trianti, N.; Su'ud, Z.; Riyana, E. S.

    2012-06-06

    A preliminary design study for the utilization of thorium added with {sup 231}Pa based fuel on BWR type reactor has been performed. In the previous research utilization of fuel based Thorium-232 and Uranium-233 show 10 years operation time with maximum excess-reactivity about 4.075% dk/k. To increase reactor operation time and reduce excess-reactivity below 1% dk/k, Protactinium (Pa-231) is used as Burnable Poison. Protactinium-231 has very interesting neutronic properties, which enable the core to reduce initial excess-reactivity and simultaneously increase production of {sup 233}U to {sup 231}Pa in burn-up process. Optimizations of the content of {sup 231}Pa in the core enables the BWR core to sustain long period of operation time with reasonable burn-up reactivity swing. Based on the optimization of fuel element composition (Th and Pa) in various moderation ratio we can get reactor core with longer operation time, 20 {approx} 30 years operation without fuel shuffling or refuelling, with average power densities maximum of about 35 watt/cc, and maximum excess-reactivity 0.56% dk/k.

  12. 14 CFR 234.3 - Applicability.

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ... 14 Aeronautics and Space 4 2010-01-01 2010-01-01 false Applicability. 234.3 Section 234.3 Aeronautics and Space OFFICE OF THE SECRETARY, DEPARTMENT OF TRANSPORTATION (AVIATION PROCEEDINGS) ECONOMIC REGULATIONS AIRLINE SERVICE QUALITY PERFORMANCE REPORTS § 234.3 Applicability. This part applies to certain...

  13. 32 CFR 234.10 - Weapons.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... use a weapon in support of a security, law enforcement, or other lawful purpose while on the Pentagon... 32 National Defense 2 2013-07-01 2013-07-01 false Weapons. 234.10 Section 234.10 National Defense... PENTAGON RESERVATION § 234.10 Weapons. (a) Except as otherwise authorized under this section, the following...

  14. 32 CFR 234.10 - Weapons.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... use a weapon in support of a security, law enforcement, or other lawful purpose while on the Pentagon... 32 National Defense 2 2011-07-01 2011-07-01 false Weapons. 234.10 Section 234.10 National Defense... PENTAGON RESERVATION § 234.10 Weapons. (a) Except as otherwise authorized under this section, the following...

  15. 32 CFR 234.10 - Weapons.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... use a weapon in support of a security, law enforcement, or other lawful purpose while on the Pentagon... 32 National Defense 2 2012-07-01 2012-07-01 false Weapons. 234.10 Section 234.10 National Defense... PENTAGON RESERVATION § 234.10 Weapons. (a) Except as otherwise authorized under this section, the following...

  16. 32 CFR 234.10 - Weapons.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... use a weapon in support of a security, law enforcement, or other lawful purpose while on the Pentagon... 32 National Defense 2 2010-07-01 2010-07-01 false Weapons. 234.10 Section 234.10 National Defense... PENTAGON RESERVATION § 234.10 Weapons. (a) Except as otherwise authorized under this section, the following...

  17. 32 CFR 234.10 - Weapons.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... 32 National Defense 2 2014-07-01 2014-07-01 false Weapons. 234.10 Section 234.10 National Defense... PENTAGON RESERVATION § 234.10 Weapons. (a) Except as otherwise authorized under this section, the following are prohibited: (1) Possessing a weapon. (2) Carrying a weapon. (3) Using a weapon. (b) This section...

  18. 14 CFR 234.12 - Waivers.

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ... 14 Aeronautics and Space 4 2010-01-01 2010-01-01 false Waivers. 234.12 Section 234.12 Aeronautics and Space OFFICE OF THE SECRETARY, DEPARTMENT OF TRANSPORTATION (AVIATION PROCEEDINGS) ECONOMIC REGULATIONS AIRLINE SERVICE QUALITY PERFORMANCE REPORTS § 234.12 Waivers. Any carrier may request a...

  19. 14 CFR 234.7 - Voluntary reporting.

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ... 14 Aeronautics and Space 4 2010-01-01 2010-01-01 false Voluntary reporting. 234.7 Section 234.7 Aeronautics and Space OFFICE OF THE SECRETARY, DEPARTMENT OF TRANSPORTATION (AVIATION PROCEEDINGS) ECONOMIC REGULATIONS AIRLINE SERVICE QUALITY PERFORMANCE REPORTS § 234.7 Voluntary reporting. (a) In addition to...

  20. 49 CFR 234.203 - Control circuits.

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ... 49 Transportation 4 2011-10-01 2011-10-01 false Control circuits. 234.203 Section 234.203 Transportation Other Regulations Relating to Transportation (Continued) FEDERAL RAILROAD ADMINISTRATION..., Inspection, and Testing Maintenance Standards § 234.203 Control circuits. All control circuits that affect...

  1. 49 CFR 234.203 - Control circuits.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... 49 Transportation 4 2010-10-01 2010-10-01 false Control circuits. 234.203 Section 234.203 Transportation Other Regulations Relating to Transportation (Continued) FEDERAL RAILROAD ADMINISTRATION..., Inspection, and Testing Maintenance Standards § 234.203 Control circuits. All control circuits that affect...

  2. 49 CFR 234.231 - Fouling wires.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... 49 Transportation 4 2010-10-01 2010-10-01 false Fouling wires. 234.231 Section 234.231..., Inspection, and Testing Maintenance Standards § 234.231 Fouling wires. Each set of fouling wires in a highway... single duplex wire with single plug acting as fouling wires is prohibited. Existing installations having...

  3. 49 CFR 234.231 - Fouling wires.

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ... 49 Transportation 4 2013-10-01 2013-10-01 false Fouling wires. 234.231 Section 234.231... EMERGENCY NOTIFICATION SYSTEMS Maintenance, Inspection, and Testing Maintenance Standards § 234.231 Fouling wires. Each set of fouling wires in a highway-rail grade crossing train detection circuit shall consist...

  4. 49 CFR 234.231 - Fouling wires.

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ... 49 Transportation 4 2011-10-01 2011-10-01 false Fouling wires. 234.231 Section 234.231..., Inspection, and Testing Maintenance Standards § 234.231 Fouling wires. Each set of fouling wires in a highway... single duplex wire with single plug acting as fouling wires is prohibited. Existing installations having...

  5. 49 CFR 234.231 - Fouling wires.

    Code of Federal Regulations, 2012 CFR

    2012-10-01

    ... 49 Transportation 4 2012-10-01 2012-10-01 false Fouling wires. 234.231 Section 234.231... EMERGENCY NOTIFICATION SYSTEMS Maintenance, Inspection, and Testing Maintenance Standards § 234.231 Fouling wires. Each set of fouling wires in a highway-rail grade crossing train detection circuit shall consist...

  6. 49 CFR 234.231 - Fouling wires.

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ... 49 Transportation 4 2014-10-01 2014-10-01 false Fouling wires. 234.231 Section 234.231... EMERGENCY NOTIFICATION SYSTEMS Maintenance, Inspection, and Testing Maintenance Standards § 234.231 Fouling wires. Each set of fouling wires in a highway-rail grade crossing train detection circuit shall consist...

  7. 49 CFR 234.229 - Shunting sensitivity.

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ... 49 Transportation 4 2011-10-01 2011-10-01 false Shunting sensitivity. 234.229 Section 234.229 Transportation Other Regulations Relating to Transportation (Continued) FEDERAL RAILROAD ADMINISTRATION..., Inspection, and Testing Maintenance Standards § 234.229 Shunting sensitivity. Each highway-rail grade...

  8. 49 CFR 234.229 - Shunting sensitivity.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... 49 Transportation 4 2010-10-01 2010-10-01 false Shunting sensitivity. 234.229 Section 234.229 Transportation Other Regulations Relating to Transportation (Continued) FEDERAL RAILROAD ADMINISTRATION..., Inspection, and Testing Maintenance Standards § 234.229 Shunting sensitivity. Each highway-rail grade...

  9. 49 CFR 234.249 - Ground tests.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... 49 Transportation 4 2010-10-01 2010-10-01 false Ground tests. 234.249 Section 234.249 Transportation Other Regulations Relating to Transportation (Continued) FEDERAL RAILROAD ADMINISTRATION..., Inspection, and Testing Inspections and Tests § 234.249 Ground tests. A test for grounds on each energy...

  10. 49 CFR 234.249 - Ground tests.

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ... 49 Transportation 4 2014-10-01 2014-10-01 false Ground tests. 234.249 Section 234.249... EMERGENCY NOTIFICATION SYSTEMS Maintenance, Inspection, and Testing Inspections and Tests § 234.249 Ground tests. A test for grounds on each energy bus furnishing power to circuits that affect the safety...

  11. 9 CFR 2.34 - [Reserved

    Code of Federal Regulations, 2014 CFR

    2014-01-01

    ... 9 Animals and Animal Products 1 2014-01-01 2014-01-01 false 2.34 Section 2.34 Animals and Animal Products ANIMAL AND PLANT HEALTH INSPECTION SERVICE, DEPARTMENT OF AGRICULTURE ANIMAL WELFARE REGULATIONS Research Facilities § 2.34 ...

  12. 9 CFR 2.34 - [Reserved

    Code of Federal Regulations, 2012 CFR

    2012-01-01

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  13. 9 CFR 2.34 - [Reserved

    Code of Federal Regulations, 2013 CFR

    2013-01-01

    ... 9 Animals and Animal Products 1 2013-01-01 2013-01-01 false 2.34 Section 2.34 Animals and Animal Products ANIMAL AND PLANT HEALTH INSPECTION SERVICE, DEPARTMENT OF AGRICULTURE ANIMAL WELFARE REGULATIONS Research Facilities § 2.34 ...

  14. 9 CFR 2.34 - [Reserved

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ... 9 Animals and Animal Products 1 2010-01-01 2010-01-01 false 2.34 Section 2.34 Animals and Animal Products ANIMAL AND PLANT HEALTH INSPECTION SERVICE, DEPARTMENT OF AGRICULTURE ANIMAL WELFARE REGULATIONS Research Facilities § 2.34 ...

  15. 9 CFR 2.34 - [Reserved

    Code of Federal Regulations, 2011 CFR

    2011-01-01

    ... 9 Animals and Animal Products 1 2011-01-01 2011-01-01 false 2.34 Section 2.34 Animals and Animal Products ANIMAL AND PLANT HEALTH INSPECTION SERVICE, DEPARTMENT OF AGRICULTURE ANIMAL WELFARE REGULATIONS Research Facilities § 2.34 ...

  16. 40 CFR 415.234 - [Reserved

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... 40 Protection of Environment 29 2011-07-01 2009-07-01 true 415.234 Section 415.234 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) EFFLUENT GUIDELINES AND STANDARDS INORGANIC CHEMICALS MANUFACTURING POINT SOURCE CATEGORY Aluminum Fluoride Production Subcategory § 415.234 ...

  17. 40 CFR 415.234 - [Reserved

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 40 Protection of Environment 28 2010-07-01 2010-07-01 true 415.234 Section 415.234 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) EFFLUENT GUIDELINES AND STANDARDS INORGANIC CHEMICALS MANUFACTURING POINT SOURCE CATEGORY Aluminum Fluoride Production Subcategory § 415.234 ...

  18. 40 CFR 415.234 - [Reserved

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... 40 Protection of Environment 30 2013-07-01 2012-07-01 true 415.234 Section 415.234 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) EFFLUENT GUIDELINES AND STANDARDS INORGANIC CHEMICALS MANUFACTURING POINT SOURCE CATEGORY Aluminum Fluoride Production Subcategory § 415.234 ...

  19. 40 CFR 415.234 - [Reserved

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... 40 Protection of Environment 30 2012-07-01 2012-07-01 false 415.234 Section 415.234 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) EFFLUENT GUIDELINES AND STANDARDS INORGANIC CHEMICALS MANUFACTURING POINT SOURCE CATEGORY Aluminum Fluoride Production Subcategory § 415.234 ...

  20. 49 CFR 234.6 - Penalties.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... 49 Transportation 4 2010-10-01 2010-10-01 false Penalties. 234.6 Section 234.6 Transportation... TRANSPORTATION GRADE CROSSING SIGNAL SYSTEM SAFETY AND STATE ACTION PLANS General § 234.6 Penalties. (a) Civil penalty. Any person (an entity of any type covered under 1 U.S.C. 1, including but not limited to...

  1. 48 CFR 234.003 - Responsibilities.

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ... 48 Federal Acquisition Regulations System 3 2014-10-01 2014-10-01 false Responsibilities. 234.003 Section 234.003 Federal Acquisition Regulations System DEFENSE ACQUISITION REGULATIONS SYSTEM, DEPARTMENT OF DEFENSE SPECIAL CATEGORIES OF CONTRACTING MAJOR SYSTEM ACQUISITION 234.003 Responsibilities....

  2. 49 CFR 234.6 - Penalties.

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ... death or injury to persons, or has caused death or injury, a penalty not to exceed $105,000 per... 49 Transportation 4 2014-10-01 2014-10-01 false Penalties. 234.6 Section 234.6 Transportation... SYSTEMS General § 234.6 Penalties. (a) Civil penalty. Any person (an entity of any type covered under 1 U...

  3. 49 CFR 234.6 - Penalties.

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ... death or injury to persons, or has caused death or injury, a penalty not to exceed $105,000 per... 49 Transportation 4 2013-10-01 2013-10-01 false Penalties. 234.6 Section 234.6 Transportation... SYSTEMS General § 234.6 Penalties. (a) Civil penalty. Any person (an entity of any type covered under 1 U...

  4. 49 CFR 234.6 - Penalties.

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ... 49 Transportation 4 2011-10-01 2011-10-01 false Penalties. 234.6 Section 234.6 Transportation... TRANSPORTATION GRADE CROSSING SIGNAL SYSTEM SAFETY AND STATE ACTION PLANS General § 234.6 Penalties. (a) Civil penalty. Any person (an entity of any type covered under 1 U.S.C. 1, including but not limited to the...

  5. 49 CFR 234.106 - Partial activation.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... 49 Transportation 4 2010-10-01 2010-10-01 false Partial activation. 234.106 Section 234.106..., DEPARTMENT OF TRANSPORTATION GRADE CROSSING SIGNAL SYSTEM SAFETY AND STATE ACTION PLANS Response to Reports of Warning System Malfunction § 234.106 Partial activation. Upon receipt of a credible report of...

  6. 49 CFR 234.249 - Ground tests.

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ... 49 Transportation 4 2013-10-01 2013-10-01 false Ground tests. 234.249 Section 234.249 Transportation Other Regulations Relating to Transportation (Continued) FEDERAL RAILROAD ADMINISTRATION... EMERGENCY NOTIFICATION SYSTEMS Maintenance, Inspection, and Testing Inspections and Tests § 234.249 Ground...

  7. 49 CFR 234.249 - Ground tests.

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ... 49 Transportation 4 2011-10-01 2011-10-01 false Ground tests. 234.249 Section 234.249 Transportation Other Regulations Relating to Transportation (Continued) FEDERAL RAILROAD ADMINISTRATION..., Inspection, and Testing Inspections and Tests § 234.249 Ground tests. A test for grounds on each energy bus...

  8. 49 CFR 234.249 - Ground tests.

    Code of Federal Regulations, 2012 CFR

    2012-10-01

    ... 49 Transportation 4 2012-10-01 2012-10-01 false Ground tests. 234.249 Section 234.249 Transportation Other Regulations Relating to Transportation (Continued) FEDERAL RAILROAD ADMINISTRATION... EMERGENCY NOTIFICATION SYSTEMS Maintenance, Inspection, and Testing Inspections and Tests § 234.249 Ground...

  9. 49 CFR 234.259 - Warning time.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... 49 Transportation 4 2010-10-01 2010-10-01 false Warning time. 234.259 Section 234.259..., Inspection, and Testing Inspections and Tests § 234.259 Warning time. Each crossing warning system shall be tested for the prescribed warning time at least once every 12 months and when the warning system is...

  10. 49 CFR 234.221 - Lamp voltage.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... 49 Transportation 4 2010-10-01 2010-10-01 false Lamp voltage. 234.221 Section 234.221 Transportation Other Regulations Relating to Transportation (Continued) FEDERAL RAILROAD ADMINISTRATION..., Inspection, and Testing Maintenance Standards § 234.221 Lamp voltage. The voltage at each lamp shall...

  11. 49 CFR 234.221 - Lamp voltage.

    Code of Federal Regulations, 2012 CFR

    2012-10-01

    ... 49 Transportation 4 2012-10-01 2012-10-01 false Lamp voltage. 234.221 Section 234.221..., DEPARTMENT OF TRANSPORTATION GRADE CROSSING SAFETY, INCLUDING SIGNAL SYSTEMS, STATE ACTION PLANS, AND EMERGENCY NOTIFICATION SYSTEMS Maintenance, Inspection, and Testing Maintenance Standards § 234.221 Lamp...

  12. 49 CFR 234.221 - Lamp voltage.

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ... 49 Transportation 4 2014-10-01 2014-10-01 false Lamp voltage. 234.221 Section 234.221..., DEPARTMENT OF TRANSPORTATION GRADE CROSSING SAFETY, INCLUDING SIGNAL SYSTEMS, STATE ACTION PLANS, AND EMERGENCY NOTIFICATION SYSTEMS Maintenance, Inspection, and Testing Maintenance Standards § 234.221 Lamp...

  13. 49 CFR 234.221 - Lamp voltage.

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ... 49 Transportation 4 2011-10-01 2011-10-01 false Lamp voltage. 234.221 Section 234.221..., DEPARTMENT OF TRANSPORTATION GRADE CROSSING SIGNAL SYSTEM SAFETY AND STATE ACTION PLANS Maintenance, Inspection, and Testing Maintenance Standards § 234.221 Lamp voltage. The voltage at each lamp shall be...

  14. 49 CFR 234.221 - Lamp voltage.

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ... 49 Transportation 4 2013-10-01 2013-10-01 false Lamp voltage. 234.221 Section 234.221..., DEPARTMENT OF TRANSPORTATION GRADE CROSSING SAFETY, INCLUDING SIGNAL SYSTEMS, STATE ACTION PLANS, AND EMERGENCY NOTIFICATION SYSTEMS Maintenance, Inspection, and Testing Maintenance Standards § 234.221 Lamp...

  15. 49 CFR 234.251 - Standby power.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... 49 Transportation 4 2010-10-01 2010-10-01 false Standby power. 234.251 Section 234.251 Transportation Other Regulations Relating to Transportation (Continued) FEDERAL RAILROAD ADMINISTRATION..., Inspection, and Testing Inspections and Tests § 234.251 Standby power. Standby power shall be tested at...

  16. 16 CFR 2.34 - Disposition.

    Code of Federal Regulations, 2012 CFR

    2012-01-01

    ... 16 Commercial Practices 1 2012-01-01 2012-01-01 false Disposition. 2.34 Section 2.34 Commercial... Consent Order Procedure § 2.34 Disposition. (a) Acceptance of proposed consent agreement. The Commission... further actions leading to final disposition of the matter. (b) Effectiveness of hold-separate or asset...

  17. 16 CFR 2.34 - Disposition.

    Code of Federal Regulations, 2013 CFR

    2013-01-01

    ... 16 Commercial Practices 1 2013-01-01 2013-01-01 false Disposition. 2.34 Section 2.34 Commercial... Consent Order Procedure § 2.34 Disposition. (a) Acceptance of proposed consent agreement. The Commission... further actions leading to final disposition of the matter. (b) Effectiveness of hold-separate or asset...

  18. 16 CFR 2.34 - Disposition.

    Code of Federal Regulations, 2011 CFR

    2011-01-01

    ... 16 Commercial Practices 1 2011-01-01 2011-01-01 false Disposition. 2.34 Section 2.34 Commercial... Consent Order Procedure § 2.34 Disposition. (a) Acceptance of proposed consent agreement. The Commission... further actions leading to final disposition of the matter. (b) Effectiveness of hold-separate or asset...

  19. 16 CFR 2.34 - Disposition.

    Code of Federal Regulations, 2014 CFR

    2014-01-01

    ... 16 Commercial Practices 1 2014-01-01 2014-01-01 false Disposition. 2.34 Section 2.34 Commercial... Consent Order Procedure § 2.34 Disposition. (a) Acceptance of proposed consent agreement. The Commission... further actions leading to final disposition of the matter. (b) Effectiveness of hold-separate or asset...

  20. 16 CFR 2.34 - Disposition.

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ... 16 Commercial Practices 1 2010-01-01 2010-01-01 false Disposition. 2.34 Section 2.34 Commercial... Consent Order Procedure § 2.34 Disposition. (a) Acceptance of proposed consent agreement. The Commission... further actions leading to final disposition of the matter. (b) Effectiveness of hold-separate or asset...

  1. 49 CFR 234.301 - Definitions.

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ... 49 Transportation 4 2013-10-01 2013-10-01 false Definitions. 234.301 Section 234.301..., DEPARTMENT OF TRANSPORTATION GRADE CROSSING SAFETY, INCLUDING SIGNAL SYSTEMS, STATE ACTION PLANS, AND... at Highway-Rail and Pathway Grade Crossings § 234.301 Definitions. As used in this subpart— Answering...

  2. 49 CFR 234.106 - Partial activation.

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ... 49 Transportation 4 2013-10-01 2013-10-01 false Partial activation. 234.106 Section 234.106..., DEPARTMENT OF TRANSPORTATION GRADE CROSSING SAFETY, INCLUDING SIGNAL SYSTEMS, STATE ACTION PLANS, AND... Grade Crossings § 234.106 Partial activation. Upon receipt of a credible report of a partial activation...

  3. 49 CFR 234.301 - Definitions.

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ... 49 Transportation 4 2014-10-01 2014-10-01 false Definitions. 234.301 Section 234.301..., DEPARTMENT OF TRANSPORTATION GRADE CROSSING SAFETY, INCLUDING SIGNAL SYSTEMS, STATE ACTION PLANS, AND... at Highway-Rail and Pathway Grade Crossings § 234.301 Definitions. As used in this subpart— Answering...

  4. 7 CFR 966.234 - Assessment rate.

    Code of Federal Regulations, 2011 CFR

    2011-01-01

    ... 7 Agriculture 8 2011-01-01 2011-01-01 false Assessment rate. 966.234 Section 966.234 Agriculture... and Orders; Fruits, Vegetables, Nuts), DEPARTMENT OF AGRICULTURE TOMATOES GROWN IN FLORIDA Assessment Rates § 966.234 Assessment rate. On and after August 1, 2009, an assessment rate of $0.0275 per 25-pound...

  5. 49 CFR 234.223 - Gate arm.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... 49 Transportation 4 2010-10-01 2010-10-01 false Gate arm. 234.223 Section 234.223 Transportation... Maintenance Standards § 234.223 Gate arm. Each gate arm, when in the downward position, shall extend across... clearly viewed by approaching highway users. Each gate arm shall start its downward motion not less...

  6. 49 CFR 234.223 - Gate arm.

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ... 49 Transportation 4 2014-10-01 2014-10-01 false Gate arm. 234.223 Section 234.223 Transportation... SYSTEMS Maintenance, Inspection, and Testing Maintenance Standards § 234.223 Gate arm. Each gate arm, when... maintained in a condition sufficient to be clearly viewed by approaching highway users. Each gate arm...

  7. 49 CFR 234.223 - Gate arm.

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ... 49 Transportation 4 2011-10-01 2011-10-01 false Gate arm. 234.223 Section 234.223 Transportation... Maintenance Standards § 234.223 Gate arm. Each gate arm, when in the downward position, shall extend across... clearly viewed by approaching highway users. Each gate arm shall start its downward motion not less...

  8. 49 CFR 234.223 - Gate arm.

    Code of Federal Regulations, 2012 CFR

    2012-10-01

    ... 49 Transportation 4 2012-10-01 2012-10-01 false Gate arm. 234.223 Section 234.223 Transportation... SYSTEMS Maintenance, Inspection, and Testing Maintenance Standards § 234.223 Gate arm. Each gate arm, when... maintained in a condition sufficient to be clearly viewed by approaching highway users. Each gate arm...

  9. 49 CFR 234.251 - Standby power.

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ... 49 Transportation 4 2011-10-01 2011-10-01 false Standby power. 234.251 Section 234.251 Transportation Other Regulations Relating to Transportation (Continued) FEDERAL RAILROAD ADMINISTRATION..., Inspection, and Testing Inspections and Tests § 234.251 Standby power. Standby power shall be tested at...

  10. 49 CFR 234.259 - Warning time.

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ... 49 Transportation 4 2011-10-01 2011-10-01 false Warning time. 234.259 Section 234.259..., Inspection, and Testing Inspections and Tests § 234.259 Warning time. Each crossing warning system shall be tested for the prescribed warning time at least once every 12 months and when the warning system...

  11. 40 CFR 415.234 - [Reserved

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... 40 Protection of Environment 29 2014-07-01 2012-07-01 true 415.234 Section 415.234 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) EFFLUENT GUIDELINES AND STANDARDS INORGANIC CHEMICALS MANUFACTURING POINT SOURCE CATEGORY Aluminum Fluoride Production Subcategory § 415.234 ...

  12. 32 CFR 234.9 - Explosives.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... 32 National Defense 2 2014-07-01 2014-07-01 false Explosives. 234.9 Section 234.9 National Defense... PENTAGON RESERVATION § 234.9 Explosives. (a) Using, possessing, storing, or transporting explosives, blasting agents or explosive materials is prohibited, except pursuant to the terms and conditions of...

  13. 32 CFR 234.9 - Explosives.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... 32 National Defense 2 2012-07-01 2012-07-01 false Explosives. 234.9 Section 234.9 National Defense... PENTAGON RESERVATION § 234.9 Explosives. (a) Using, possessing, storing, or transporting explosives, blasting agents or explosive materials is prohibited, except pursuant to the terms and conditions of...

  14. 32 CFR 234.9 - Explosives.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... 32 National Defense 2 2011-07-01 2011-07-01 false Explosives. 234.9 Section 234.9 National Defense... PENTAGON RESERVATION § 234.9 Explosives. (a) Using, possessing, storing, or transporting explosives, blasting agents or explosive materials is prohibited, except pursuant to the terms and conditions of...

  15. 32 CFR 234.9 - Explosives.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 32 National Defense 2 2010-07-01 2010-07-01 false Explosives. 234.9 Section 234.9 National Defense... PENTAGON RESERVATION § 234.9 Explosives. (a) Using, possessing, storing, or transporting explosives, blasting agents or explosive materials is prohibited, except pursuant to the terms and conditions of...

  16. 32 CFR 234.9 - Explosives.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... 32 National Defense 2 2013-07-01 2013-07-01 false Explosives. 234.9 Section 234.9 National Defense... PENTAGON RESERVATION § 234.9 Explosives. (a) Using, possessing, storing, or transporting explosives, blasting agents or explosive materials is prohibited, except pursuant to the terms and conditions of...

  17. 8 CFR 234.2 - Landing requirements.

    Code of Federal Regulations, 2011 CFR

    2011-01-01

    ... 8 Aliens and Nationality 1 2011-01-01 2011-01-01 false Landing requirements. 234.2 Section 234.2 Aliens and Nationality DEPARTMENT OF HOMELAND SECURITY IMMIGRATION REGULATIONS DESIGNATION OF PORTS OF ENTRY FOR ALIENS ARRIVING BY CIVIL AIRCRAFT § 234.2 Landing requirements. (a) Place of landing....

  18. 49 CFR 234.245 - Signs.

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ... 49 Transportation 4 2011-10-01 2011-10-01 false Signs. 234.245 Section 234.245 Transportation Other Regulations Relating to Transportation (Continued) FEDERAL RAILROAD ADMINISTRATION, DEPARTMENT OF... Maintenance Standards § 234.245 Signs. Each sign mounted on a highway-rail grade crossing signal post shall be...

  19. 49 CFR 234.245 - Signs.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... 49 Transportation 4 2010-10-01 2010-10-01 false Signs. 234.245 Section 234.245 Transportation Other Regulations Relating to Transportation (Continued) FEDERAL RAILROAD ADMINISTRATION, DEPARTMENT OF... Maintenance Standards § 234.245 Signs. Each sign mounted on a highway-rail grade crossing signal post shall be...

  20. 49 CFR 234.245 - Signs.

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ... 49 Transportation 4 2014-10-01 2014-10-01 false Signs. 234.245 Section 234.245 Transportation Other Regulations Relating to Transportation (Continued) FEDERAL RAILROAD ADMINISTRATION, DEPARTMENT OF... SYSTEMS Maintenance, Inspection, and Testing Maintenance Standards § 234.245 Signs. Each sign mounted on a...

  1. 49 CFR 234.245 - Signs.

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ... 49 Transportation 4 2013-10-01 2013-10-01 false Signs. 234.245 Section 234.245 Transportation Other Regulations Relating to Transportation (Continued) FEDERAL RAILROAD ADMINISTRATION, DEPARTMENT OF... SYSTEMS Maintenance, Inspection, and Testing Maintenance Standards § 234.245 Signs. Each sign mounted on a...

  2. 49 CFR 234.245 - Signs.

    Code of Federal Regulations, 2012 CFR

    2012-10-01

    ... 49 Transportation 4 2012-10-01 2012-10-01 false Signs. 234.245 Section 234.245 Transportation Other Regulations Relating to Transportation (Continued) FEDERAL RAILROAD ADMINISTRATION, DEPARTMENT OF... SYSTEMS Maintenance, Inspection, and Testing Maintenance Standards § 234.245 Signs. Each sign mounted on a...

  3. 20 CFR 410.234 - Interim provisions.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ... 20 Employees' Benefits 2 2010-04-01 2010-04-01 false Interim provisions. 410.234 Section 410.234 Employees' Benefits SOCIAL SECURITY ADMINISTRATION FEDERAL COAL MINE HEALTH AND SAFETY ACT OF 1969, TITLE IV... Evidence § 410.234 Interim provisions. (a) Notwithstanding any other provision of this subpart, a...

  4. 7 CFR 916.234 - Assessment rate.

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ... 7 Agriculture 8 2010-01-01 2010-01-01 false Assessment rate. 916.234 Section 916.234 Agriculture Regulations of the Department of Agriculture (Continued) AGRICULTURAL MARKETING SERVICE (Marketing Agreements... Assessment Rates § 916.234 Assessment rate. On and after March 1, 2009, an assessment rate of $0.0175 per 25...

  5. 7 CFR 916.234 - Assessment rate.

    Code of Federal Regulations, 2011 CFR

    2011-01-01

    ... 7 Agriculture 8 2011-01-01 2011-01-01 false Assessment rate. 916.234 Section 916.234 Agriculture Regulations of the Department of Agriculture (Continued) AGRICULTURAL MARKETING SERVICE (Marketing Agreements... Assessment Rates § 916.234 Assessment rate. On and after March 1, 2010, an assessment rate of $0.0280 per 25...

  6. 49 CFR 234.233 - Rail joints.

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ... 49 Transportation 4 2011-10-01 2011-10-01 false Rail joints. 234.233 Section 234.233..., Inspection, and Testing Maintenance Standards § 234.233 Rail joints. Each non-insulated rail joint located... than joint bars and the bonds shall be maintained in such condition to ensure electrical conductivity. ...

  7. 49 CFR 234.233 - Rail joints.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... 49 Transportation 4 2010-10-01 2010-10-01 false Rail joints. 234.233 Section 234.233..., Inspection, and Testing Maintenance Standards § 234.233 Rail joints. Each non-insulated rail joint located... than joint bars and the bonds shall be maintained in such condition to ensure electrical conductivity. ...

  8. 49 CFR 234.263 - Relays.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... 49 Transportation 4 2010-10-01 2010-10-01 false Relays. 234.263 Section 234.263 Transportation... Inspections and Tests § 234.263 Relays. (a) Except as stated in paragraph (b) of this section, each relay that.... (b)(1) Alternating current vane type relays, direct current polar type relays, and relays with...

  9. 49 CFR 234.263 - Relays.

    Code of Federal Regulations, 2012 CFR

    2012-10-01

    ... 49 Transportation 4 2012-10-01 2012-10-01 false Relays. 234.263 Section 234.263 Transportation... SYSTEMS Maintenance, Inspection, and Testing Inspections and Tests § 234.263 Relays. (a) Except as stated in paragraph (b) of this section, each relay that affects the proper functioning of a...

  10. 49 CFR 234.263 - Relays.

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ... 49 Transportation 4 2013-10-01 2013-10-01 false Relays. 234.263 Section 234.263 Transportation... SYSTEMS Maintenance, Inspection, and Testing Inspections and Tests § 234.263 Relays. (a) Except as stated in paragraph (b) of this section, each relay that affects the proper functioning of a...

  11. 49 CFR 234.263 - Relays.

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ... 49 Transportation 4 2014-10-01 2014-10-01 false Relays. 234.263 Section 234.263 Transportation... SYSTEMS Maintenance, Inspection, and Testing Inspections and Tests § 234.263 Relays. (a) Except as stated in paragraph (b) of this section, each relay that affects the proper functioning of a...

  12. 49 CFR 234.263 - Relays.

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ... 49 Transportation 4 2011-10-01 2011-10-01 false Relays. 234.263 Section 234.263 Transportation... Inspections and Tests § 234.263 Relays. (a) Except as stated in paragraph (b) of this section, each relay that.... (b)(1) Alternating current vane type relays, direct current polar type relays, and relays with...

  13. Protactinium-231 dating of carbonates by thermal ionization mass spectrometry: Implications for quaternary climate change

    SciTech Connect

    Edwards, R.L.; Cheng, H.; Murrell, M.T.; Goldstein, S.J.

    1997-05-02

    Measurement of protactinium-231 ({sup 231}Pa) in carbonates by thermal ionization mass spectroscopy yields {sup 231}Pa ages that are more than 10 times more precise than those determined by decay counting. Carbonates between 10 and 250,000 years old can now be dated with {sup 231}Pa methods. Barbados corals that have identical {sup 231}Pa and thorium-230 ({sup 230}Th) ages indicate that the timing of sea level change over parts of the last glacial cycle is consistent with the predictions of the Astronomical Theory. Two Devils Hole calcite subsamples record identical {sup 231}Pa and {sup 230}Th ages, suggesting that the chronology of this climate record is accurate. 24 refs., 4 figs., 1 tab.

  14. Nuclear Data Sheets for A = 234

    SciTech Connect

    Browne, E.; Tuli, J.K.

    2007-03-15

    The evaluators present in this publication spectroscopic data and level schemes from radioactive decay and nuclear reactions for all isobars with mass number A = 234. This evaluation includes the discovery of two activities: {sup 234}Cm and {sup 234}Bk, which decay with half-lives of 51 s (2002CaZZ) and {approx}140 s (2003MoZX,2003MoZT), respectively.

  15. 20 CFR 234.10 - General.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ... 20 Employees' Benefits 1 2010-04-01 2010-04-01 false General. 234.10 Section 234.10 Employees' Benefits RAILROAD RETIREMENT BOARD REGULATIONS UNDER THE RAILROAD RETIREMENT ACT LUMP-SUM PAYMENTS Lump-Sum Death Payment § 234.10 General. A lump-sum death payment (LSDP) is payable when an employee with ten or more years of railroad service and a...

  16. Radioactive waste forms stabilized by ChemChar gasification: characterization and leaching behavior of cerium, thorium, protactinium, uranium, and neptunium.

    PubMed

    Marrero, T W; Morris, J S; Manahan, S E

    2004-02-01

    The uses of a thermally reductive gasification process in conjunction with vitrification and cementation for the long-term disposal of low level radioactive materials have been investigated. gamma-ray spectroscopy was used for analysis of carrier-free protactinium-233 and neptunium-239 and a stoichiometric amount of cerium (observed cerium-141) subsequent to gasification and leaching, up to 48 days. High resolution ICP-MS was used to analyze the cerium, thorium, and uranium from 46 to 438 days of leaching. Leaching procedures followed the guidance of ASTM Procedure C 1220-92, Standard Test Method for Static Leaching of Monolithic Waste Forms for Disposal of Radioactive Waste. The combination of the thermally reductive pretreatment, vitrification and cementation produced a highly non-leachable form suitable for long-term disposal of cerium, thorium, protactinium, uranium, and neptunium.

  17. 21 CFR 522.234 - Butamisole.

    Code of Federal Regulations, 2014 CFR

    2014-04-01

    ... 21 Food and Drugs 6 2014-04-01 2014-04-01 false Butamisole. 522.234 Section 522.234 Food and Drugs FOOD AND DRUG ADMINISTRATION, DEPARTMENT OF HEALTH AND HUMAN SERVICES (CONTINUED) ANIMAL DRUGS, FEEDS.... See Nos. 000859 and 054771 in § 510.600(c) of this chapter. (c) Conditions of use in dogs—(1) Amount...

  18. 48 CFR 234.005-1 - Competition.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... Section 234.005-1 Federal Acquisition Regulations System DEFENSE ACQUISITION REGULATIONS SYSTEM, DEPARTMENT OF DEFENSE SPECIAL CATEGORIES OF CONTRACTING MAJOR SYSTEM ACQUISITION 234.005-1 Competition. (1) A... solicitation may contain a contract line item or contract option for the provision of advanced component...

  19. 48 CFR 234.005-1 - Competition.

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ... Section 234.005-1 Federal Acquisition Regulations System DEFENSE ACQUISITION REGULATIONS SYSTEM, DEPARTMENT OF DEFENSE SPECIAL CATEGORIES OF CONTRACTING MAJOR SYSTEM ACQUISITION 234.005-1 Competition. (1) A... solicitation may contain a contract line item or contract option for the provision of advanced component...

  20. 48 CFR 234.005-1 - Competition.

    Code of Federal Regulations, 2012 CFR

    2012-10-01

    ... Section 234.005-1 Federal Acquisition Regulations System DEFENSE ACQUISITION REGULATIONS SYSTEM, DEPARTMENT OF DEFENSE SPECIAL CATEGORIES OF CONTRACTING MAJOR SYSTEM ACQUISITION 234.005-1 Competition. (1) A... solicitation may contain a contract line item or contract option for the provision of advanced component...

  1. 49 CFR 234.203 - Control circuits.

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ... 49 Transportation 4 2014-10-01 2014-10-01 false Control circuits. 234.203 Section 234.203 Transportation Other Regulations Relating to Transportation (Continued) FEDERAL RAILROAD ADMINISTRATION... circuits. All control circuits that affect the safe operation of a highway-rail grade crossing warning...

  2. 49 CFR 234.203 - Control circuits.

    Code of Federal Regulations, 2012 CFR

    2012-10-01

    ... 49 Transportation 4 2012-10-01 2012-10-01 false Control circuits. 234.203 Section 234.203 Transportation Other Regulations Relating to Transportation (Continued) FEDERAL RAILROAD ADMINISTRATION... circuits. All control circuits that affect the safe operation of a highway-rail grade crossing warning...

  3. 49 CFR 234.203 - Control circuits.

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ... 49 Transportation 4 2013-10-01 2013-10-01 false Control circuits. 234.203 Section 234.203 Transportation Other Regulations Relating to Transportation (Continued) FEDERAL RAILROAD ADMINISTRATION... circuits. All control circuits that affect the safe operation of a highway-rail grade crossing warning...

  4. 27 CFR 41.234 - Corporate documents.

    Code of Federal Regulations, 2012 CFR

    2012-04-01

    ... 27 Alcohol, Tobacco Products and Firearms 2 2012-04-01 2011-04-01 true Corporate documents. 41.234 Section 41.234 Alcohol, Tobacco Products and Firearms ALCOHOL AND TOBACCO TAX AND TRADE BUREAU, DEPARTMENT OF THE TREASURY (CONTINUED) TOBACCO IMPORTATION OF TOBACCO PRODUCTS, CIGARETTE PAPERS AND TUBES, AND...

  5. 27 CFR 41.234 - Corporate documents.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ... 27 Alcohol, Tobacco Products and Firearms 2 2010-04-01 2010-04-01 false Corporate documents. 41.234 Section 41.234 Alcohol, Tobacco Products and Firearms ALCOHOL AND TOBACCO TAX AND TRADE BUREAU, DEPARTMENT OF THE TREASURY (CONTINUED) TOBACCO IMPORTATION OF TOBACCO PRODUCTS, CIGARETTE PAPERS AND TUBES...

  6. 27 CFR 41.234 - Corporate documents.

    Code of Federal Regulations, 2013 CFR

    2013-04-01

    ... 27 Alcohol, Tobacco Products and Firearms 2 2013-04-01 2013-04-01 false Corporate documents. 41.234 Section 41.234 Alcohol, Tobacco Products and Firearms ALCOHOL AND TOBACCO TAX AND TRADE BUREAU, DEPARTMENT OF THE TREASURY (CONTINUED) TOBACCO IMPORTATION OF TOBACCO PRODUCTS, CIGARETTE PAPERS AND TUBES...

  7. 27 CFR 41.234 - Corporate documents.

    Code of Federal Regulations, 2014 CFR

    2014-04-01

    ... 27 Alcohol, Tobacco Products and Firearms 2 2014-04-01 2014-04-01 false Corporate documents. 41.234 Section 41.234 Alcohol, Tobacco Products and Firearms ALCOHOL AND TOBACCO TAX AND TRADE BUREAU, DEPARTMENT OF THE TREASURY (CONTINUED) TOBACCO IMPORTATION OF TOBACCO PRODUCTS, CIGARETTE PAPERS AND TUBES...

  8. 40 CFR 52.234 - Source surveillance.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 40 Protection of Environment 3 2010-07-01 2010-07-01 false Source surveillance. 52.234 Section 52...) APPROVAL AND PROMULGATION OF IMPLEMENTATION PLANS California § 52.234 Source surveillance. (a) Except in... stationary source in the State of California, except for those APCD's specified in paragraph (a) of this...

  9. 49 CFR 234.229 - Shunting sensitivity.

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ... 49 Transportation 4 2014-10-01 2014-10-01 false Shunting sensitivity. 234.229 Section 234.229 Transportation Other Regulations Relating to Transportation (Continued) FEDERAL RAILROAD ADMINISTRATION... sensitivity. Each highway-rail grade crossing train detection circuit shall detect the application of a shunt...

  10. 49 CFR 234.229 - Shunting sensitivity.

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ... 49 Transportation 4 2013-10-01 2013-10-01 false Shunting sensitivity. 234.229 Section 234.229 Transportation Other Regulations Relating to Transportation (Continued) FEDERAL RAILROAD ADMINISTRATION... sensitivity. Each highway-rail grade crossing train detection circuit shall detect the application of a shunt...

  11. 49 CFR 234.229 - Shunting sensitivity.

    Code of Federal Regulations, 2012 CFR

    2012-10-01

    ... 49 Transportation 4 2012-10-01 2012-10-01 false Shunting sensitivity. 234.229 Section 234.229 Transportation Other Regulations Relating to Transportation (Continued) FEDERAL RAILROAD ADMINISTRATION... sensitivity. Each highway-rail grade crossing train detection circuit shall detect the application of a shunt...

  12. 48 CFR 234.004 - Acquisition strategy.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... 48 Federal Acquisition Regulations System 3 2010-10-01 2010-10-01 false Acquisition strategy. 234..., DEPARTMENT OF DEFENSE SPECIAL CATEGORIES OF CONTRACTING MAJOR SYSTEM ACQUISITION 234.004 Acquisition strategy. (1) See 209.570 for policy applicable to acquisition strategies that consider the use of lead...

  13. 48 CFR 234.005-1 - Competition.

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ... 48 Federal Acquisition Regulations System 3 2011-10-01 2011-10-01 false Competition. 234.005-1 Section 234.005-1 Federal Acquisition Regulations System DEFENSE ACQUISITION REGULATIONS SYSTEM... not be exercised under this authority after September 30, 2014. ...

  14. 48 CFR 234.005-1 - Competition.

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ... 48 Federal Acquisition Regulations System 3 2013-10-01 2013-10-01 false Competition. 234.005-1 Section 234.005-1 Federal Acquisition Regulations System DEFENSE ACQUISITION REGULATIONS SYSTEM... not be exercised under this authority after September 30, 2014. ...

  15. 49 CFR 234.233 - Rail joints.

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ... 49 Transportation 4 2013-10-01 2013-10-01 false Rail joints. 234.233 Section 234.233... joints. Each non-insulated rail joint located within the limits of a highway-rail grade crossing train detection circuit shall be bonded by means other than joint bars and the bonds shall be maintained in...

  16. 49 CFR 234.259 - Warning time.

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ... 49 Transportation 4 2013-10-01 2013-10-01 false Warning time. 234.259 Section 234.259... time. Each crossing warning system shall be tested for the prescribed warning time at least once every... devices that accurately determine actual warning time may be used in performing such tests. ...

  17. 49 CFR 234.259 - Warning time.

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ... 49 Transportation 4 2014-10-01 2014-10-01 false Warning time. 234.259 Section 234.259... time. Each crossing warning system shall be tested for the prescribed warning time at least once every... devices that accurately determine actual warning time may be used in performing such tests. ...

  18. 32 CFR 234.1 - Definitions.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... 32 National Defense 2 2012-07-01 2012-07-01 false Definitions. 234.1 Section 234.1 National Defense Department of Defense (Continued) OFFICE OF THE SECRETARY OF DEFENSE (CONTINUED) MISCELLANEOUS... employee or agent of the Pentagon Force Protection Agency, or any other Department of Defense employee...

  19. 48 CFR 234.004 - Acquisition strategy.

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ....004 Section 234.004 Federal Acquisition Regulations System DEFENSE ACQUISITION REGULATIONS SYSTEM, DEPARTMENT OF DEFENSE SPECIAL CATEGORIES OF CONTRACTING MAJOR SYSTEM ACQUISITION 234.004 Acquisition strategy... integrators. (2) Contract type. (i) In accordance with section 818 of the National Defense Authorization Act...

  20. 8 CFR 234.1 - Definitions.

    Code of Federal Regulations, 2012 CFR

    2012-01-01

    ... 8 Aliens and Nationality 1 2012-01-01 2012-01-01 false Definitions. 234.1 Section 234.1 Aliens and Nationality DEPARTMENT OF HOMELAND SECURITY IMMIGRATION REGULATIONS DESIGNATION OF PORTS OF ENTRY FOR ALIENS..., Secretary of the Treasury and the Secretary of Health and Human Services. (c) Landing Rights Airport....

  1. 24 CFR 234.26 - Project requirements.

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ... 24 Housing and Urban Development 2 2011-04-01 2011-04-01 false Project requirements. 234.26... CONDOMINIUM OWNERSHIP MORTGAGE INSURANCE Eligibility Requirements-Individually Owned Units § 234.26 Project...) Location of family unit. The family unit shall be located in a project that the Commissioner determines to...

  2. 24 CFR 234.26 - Project requirements.

    Code of Federal Regulations, 2014 CFR

    2014-04-01

    ... 24 Housing and Urban Development 2 2014-04-01 2014-04-01 false Project requirements. 234.26... CONDOMINIUM OWNERSHIP MORTGAGE INSURANCE Eligibility Requirements-Individually Owned Units § 234.26 Project...) Location of family unit. The family unit shall be located in a project that the Commissioner determines to...

  3. 24 CFR 234.26 - Project requirements.

    Code of Federal Regulations, 2012 CFR

    2012-04-01

    ... 24 Housing and Urban Development 2 2012-04-01 2012-04-01 false Project requirements. 234.26... CONDOMINIUM OWNERSHIP MORTGAGE INSURANCE Eligibility Requirements-Individually Owned Units § 234.26 Project...) Location of family unit. The family unit shall be located in a project that the Commissioner determines to...

  4. 24 CFR 234.26 - Project requirements.

    Code of Federal Regulations, 2013 CFR

    2013-04-01

    ... 24 Housing and Urban Development 2 2013-04-01 2013-04-01 false Project requirements. 234.26... CONDOMINIUM OWNERSHIP MORTGAGE INSURANCE Eligibility Requirements-Individually Owned Units § 234.26 Project...) Location of family unit. The family unit shall be located in a project that the Commissioner determines to...

  5. 7 CFR 966.234 - Assessment rate.

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ... 7 Agriculture 8 2010-01-01 2010-01-01 false Assessment rate. 966.234 Section 966.234 Agriculture Regulations of the Department of Agriculture (Continued) AGRICULTURAL MARKETING SERVICE (Marketing Agreements and Orders; Fruits, Vegetables, Nuts), DEPARTMENT OF AGRICULTURE TOMATOES GROWN IN FLORIDA Assessment...

  6. 49 CFR 234.251 - Standby power.

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ... 49 Transportation 4 2013-10-01 2013-10-01 false Standby power. 234.251 Section 234.251 Transportation Other Regulations Relating to Transportation (Continued) FEDERAL RAILROAD ADMINISTRATION, DEPARTMENT OF TRANSPORTATION GRADE CROSSING SAFETY, INCLUDING SIGNAL SYSTEMS, STATE ACTION PLANS, AND...

  7. 49 CFR 234.1 - Scope.

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ... 49 Transportation 4 2013-10-01 2013-10-01 false Scope. 234.1 Section 234.1 Transportation Other... TRANSPORTATION GRADE CROSSING SAFETY, INCLUDING SIGNAL SYSTEMS, STATE ACTION PLANS, AND EMERGENCY NOTIFICATION... standards for highway-rail grade crossing warning systems; (2) Standards for the reporting of failures of...

  8. 49 CFR 234.213 - Grounds.

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ... 49 Transportation 4 2014-10-01 2014-10-01 false Grounds. 234.213 Section 234.213 Transportation Other Regulations Relating to Transportation (Continued) FEDERAL RAILROAD ADMINISTRATION, DEPARTMENT OF... internal to semiconductor-based memory; and (5) Common return wires of grounded common return single...

  9. 49 CFR 234.251 - Standby power.

    Code of Federal Regulations, 2012 CFR

    2012-10-01

    ... 49 Transportation 4 2012-10-01 2012-10-01 false Standby power. 234.251 Section 234.251 Transportation Other Regulations Relating to Transportation (Continued) FEDERAL RAILROAD ADMINISTRATION... power. Standby power shall be tested at least once each month....

  10. 49 CFR 234.251 - Standby power.

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ... 49 Transportation 4 2014-10-01 2014-10-01 false Standby power. 234.251 Section 234.251 Transportation Other Regulations Relating to Transportation (Continued) FEDERAL RAILROAD ADMINISTRATION... power. Standby power shall be tested at least once each month....

  11. 49 CFR 234.259 - Warning time.

    Code of Federal Regulations, 2012 CFR

    2012-10-01

    ... 49 Transportation 4 2012-10-01 2012-10-01 false Warning time. 234.259 Section 234.259... time. Each crossing warning system shall be tested for the prescribed warning time at least once every... devices that accurately determine actual warning time may be used in performing such tests....

  12. 10 CFR 600.234 - Copyrights.

    Code of Federal Regulations, 2012 CFR

    2012-01-01

    ... 10 Energy 4 2012-01-01 2012-01-01 false Copyrights. 600.234 Section 600.234 Energy DEPARTMENT OF... Copyrights. The Federal awarding agency reserves a royalty-free, nonexclusive, and irrevocable license to...) The copyright in any work developed under a grant, subgrant, or contract under a grant or...

  13. 10 CFR 600.234 - Copyrights.

    Code of Federal Regulations, 2013 CFR

    2013-01-01

    ... 10 Energy 4 2013-01-01 2013-01-01 false Copyrights. 600.234 Section 600.234 Energy DEPARTMENT OF... Copyrights. The Federal awarding agency reserves a royalty-free, nonexclusive, and irrevocable license to...) The copyright in any work developed under a grant, subgrant, or contract under a grant or...

  14. 10 CFR 600.234 - Copyrights.

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ... 10 Energy 4 2010-01-01 2010-01-01 false Copyrights. 600.234 Section 600.234 Energy DEPARTMENT OF... Copyrights. The Federal awarding agency reserves a royalty-free, nonexclusive, and irrevocable license to...) The copyright in any work developed under a grant, subgrant, or contract under a grant or...

  15. 10 CFR 600.234 - Copyrights.

    Code of Federal Regulations, 2011 CFR

    2011-01-01

    ... 10 Energy 4 2011-01-01 2011-01-01 false Copyrights. 600.234 Section 600.234 Energy DEPARTMENT OF... Copyrights. The Federal awarding agency reserves a royalty-free, nonexclusive, and irrevocable license to...) The copyright in any work developed under a grant, subgrant, or contract under a grant or...

  16. 10 CFR 600.234 - Copyrights.

    Code of Federal Regulations, 2014 CFR

    2014-01-01

    ... 10 Energy 4 2014-01-01 2014-01-01 false Copyrights. 600.234 Section 600.234 Energy DEPARTMENT OF... Copyrights. The Federal awarding agency reserves a royalty-free, nonexclusive, and irrevocable license to...) The copyright in any work developed under a grant, subgrant, or contract under a grant or...

  17. 7 CFR 4279.234 - Credit evaluation.

    Code of Federal Regulations, 2013 CFR

    2013-01-01

    ... 7 Agriculture 15 2013-01-01 2013-01-01 false Credit evaluation. 4279.234 Section 4279.234 Agriculture Regulations of the Department of Agriculture (Continued) RURAL BUSINESS-COOPERATIVE SERVICE AND RURAL UTILITIES SERVICE, DEPARTMENT OF AGRICULTURE GUARANTEED LOANMAKING Biorefinery Assistance Loans...

  18. 7 CFR 4279.234 - Credit evaluation.

    Code of Federal Regulations, 2012 CFR

    2012-01-01

    ... 7 Agriculture 15 2012-01-01 2012-01-01 false Credit evaluation. 4279.234 Section 4279.234 Agriculture Regulations of the Department of Agriculture (Continued) RURAL BUSINESS-COOPERATIVE SERVICE AND RURAL UTILITIES SERVICE, DEPARTMENT OF AGRICULTURE GUARANTEED LOANMAKING Biorefinery Assistance Loans...

  19. 7 CFR 4279.234 - Credit evaluation.

    Code of Federal Regulations, 2014 CFR

    2014-01-01

    ... 7 Agriculture 15 2014-01-01 2014-01-01 false Credit evaluation. 4279.234 Section 4279.234 Agriculture Regulations of the Department of Agriculture (Continued) RURAL BUSINESS-COOPERATIVE SERVICE AND RURAL UTILITIES SERVICE, DEPARTMENT OF AGRICULTURE GUARANTEED LOANMAKING Biorefinery Assistance Loans...

  20. 7 CFR 1221.234 - Confidentiality

    Code of Federal Regulations, 2012 CFR

    2012-01-01

    ... 7 Agriculture 10 2012-01-01 2012-01-01 false Confidentiality 1221.234 Section 1221.234 Agriculture Regulations of the Department of Agriculture (Continued) AGRICULTURAL MARKETING SERVICE (MARKETING AGREEMENTS... persons voting in the referendum and ballots shall be confidential and the contents of the ballots...

  1. 49 CFR 234.317 - Compliance dates.

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ... railroad's sign must conform to § 234.309 no later than September 1, 2017. (iii) If the railroad's sign....311 no later than September 1, 2017. If a railroad changes the placement of the sign before September 1, 2017, the placement of the sign must conform to § 234.311. If a railroad replaces a sign...

  2. 49 CFR 234.317 - Compliance dates.

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ... railroad's sign must conform to § 234.309 no later than September 1, 2017. (iii) If the railroad's sign....311 no later than September 1, 2017. If a railroad changes the placement of the sign before September 1, 2017, the placement of the sign must conform to § 234.311. If a railroad replaces a sign...

  3. 49 CFR 234.317 - Compliance dates.

    Code of Federal Regulations, 2012 CFR

    2012-10-01

    ... § 234.309 no later than September 1, 2017. (iii) If the railroad's sign size is less than 60 square..., 2017. If a railroad changes the placement of the sign before September 1, 2017, the placement of the sign must conform to § 234.311. If a railroad replaces a sign before September 1, 2017, so that...

  4. 49 CFR 234.233 - Rail joints.

    Code of Federal Regulations, 2012 CFR

    2012-10-01

    ... 49 Transportation 4 2012-10-01 2012-10-01 false Rail joints. 234.233 Section 234.233... joints. Each non-insulated rail joint located within the limits of a highway-rail grade crossing train detection circuit shall be bonded by means other than joint bars and the bonds shall be maintained in such...

  5. 49 CFR 234.233 - Rail joints.

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ... 49 Transportation 4 2014-10-01 2014-10-01 false Rail joints. 234.233 Section 234.233... joints. Each non-insulated rail joint located within the limits of a highway-rail grade crossing train detection circuit shall be bonded by means other than joint bars and the bonds shall be maintained in such...

  6. Partitioning of protactinium, uranium, thorium and other trace elements between columbite and hydrous silicate melt

    NASA Astrophysics Data System (ADS)

    Huang, F.; Schmidt, M. W.; Günther, D.; Eikenberg, J.

    2009-12-01

    U-series disequilibria are a unique powerful tool to constrain the time-scales and processes of magmatism in mid-ocean ridge, intra-plate, and convergent margin settings. 235U-231Pa is one of the important parent-daughter pairs (231Pa half life = 33 kyr) because protactinium is normally much more incompatible than U during magmatism and thus the ubiquitously observed 231Pa excess in young igneous rocks most likely reflects melting processes. However, because of the extreme incompatibility of protactinium in most silicate minerals (mineral/meltDPa < 10-5), it is quite challenging to experimentally investigate partition coefficient of Pa. Furthermore, it is unclear whether Pa is always +5 or possibly more reduced at natural magmatic conditions, in particular in a reduced mantle. This significantly limits our understanding of the chemical behavior of Pa and applications of U-series disequilibrium data to the study of magmatism. Columbite (Mn(Nb,Ta)2O6) is a mineral with Nb5+ and Ta5+ as major elements, and occurs in per-aluminous granites and pegmatites. Because protactinium is expected to be +5 charged at crustal oxygen fugacities, and Pa5+ has an ionic radius close to Nb5+ and Ta5+, Nb and Ta have been used as proxy elements to constrain partitioning of Pa between minerals and melt using lattice strain modeling. Nb and Ta are strongly compatible in columbite (columbite/meltDNb-Ta ~ 10), and lattice strain modeling based on physical characteristics of the Nb-Ta site where Pa should be incorporated predicts that columbite/meltDPa5+ should be around 0.2, high enough to be experimentally determined at the permissible Pa doping level of 10 ppm (bulk). Experiments were run in a piston cylinder apparatus at 0.5 GPa and 1115 oC using Pt double capsules with NNO or FMQ as external fO2 buffers. The starting material is a hydrous per-aluminous granitic composition, doped with Pa solution in the Paul Scherrer Institute and also contains other trace elements including U, Th, REE

  7. 14 CFR 234.2 - Definitions.

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ... REGULATIONS AIRLINE SERVICE QUALITY PERFORMANCE REPORTS § 234.2 Definitions. For the purpose of this part... flight means a flight conducted as an integral part of scheduled passenger service, that has not...

  8. 7 CFR 58.234 - Buttermilk.

    Code of Federal Regulations, 2012 CFR

    2012-01-01

    ... Specifications for Dairy Plants Approved for USDA Inspection and Grading Service 1 Quality Specifications for Raw Materials § 58.234 Buttermilk. Buttermilk for drying as dry buttermilk or dry buttermilk product shall...

  9. 7 CFR 58.234 - Buttermilk.

    Code of Federal Regulations, 2013 CFR

    2013-01-01

    ... Specifications for Dairy Plants Approved for USDA Inspection and Grading Service 1 Quality Specifications for Raw Materials § 58.234 Buttermilk. Buttermilk for drying as dry buttermilk or dry buttermilk product shall...

  10. 7 CFR 58.234 - Buttermilk.

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ... Specifications for Dairy Plants Approved for USDA Inspection and Grading Service 1 Quality Specifications for Raw Materials § 58.234 Buttermilk. Buttermilk for drying as dry buttermilk or dry buttermilk product shall...

  11. 7 CFR 58.234 - Buttermilk.

    Code of Federal Regulations, 2011 CFR

    2011-01-01

    ... Specifications for Dairy Plants Approved for USDA Inspection and Grading Service 1 Quality Specifications for Raw Materials § 58.234 Buttermilk. Buttermilk for drying as dry buttermilk or dry buttermilk product shall...

  12. 7 CFR 58.234 - Buttermilk.

    Code of Federal Regulations, 2014 CFR

    2014-01-01

    ... Specifications for Dairy Plants Approved for USDA Inspection and Grading Service 1 Quality Specifications for Raw Materials § 58.234 Buttermilk. Buttermilk for drying as dry buttermilk or dry buttermilk product shall...

  13. 40 CFR 52.234 - Source surveillance.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ...) APPROVAL AND PROMULGATION OF IMPLEMENTATION PLANS California § 52.234 Source surveillance. (a) Except in... stationary source in the State of California, except for those APCD's specified in paragraph (a) of...

  14. 40 CFR 52.234 - Source surveillance.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ...) APPROVAL AND PROMULGATION OF IMPLEMENTATION PLANS California § 52.234 Source surveillance. (a) Except in... stationary source in the State of California, except for those APCD's specified in paragraph (a) of...

  15. Remeasurement of (234)U Half-Life.

    PubMed

    Varga, Zsolt; Nicholl, Adrian; Wallenius, Maria; Mayer, Klaus

    2016-03-01

    The half-life of (234)U has been measured using a novel approach. In this method, a uranium material was chemically purified from its thorium decay product at a well-known time. The ingrowth of the (230)Th daughter product in the material was followed by measuring the accumulated (230)Th daughter product relative to its parent (234)U nuclide using inductively coupled plasma mass spectrometry. Then, the (234)U decay constant and the respective half-life could be calculated using the radioactive decay equations based on the n((230)Th)/n((234)U) amount ratio. The obtained (234)U half-life is 244 900 ± 670 years (k = 1), which is in good agreement with the previously reported results in the literature with comparable uncertainty. The main advantages of the proposed method are that it does not require the assumption of secular equilibrium between (234)U and (238)U. Moreover, the calculation is independent from the (238)U half-life value and its uncertainty. The suggested methodology can also be applied for the remeasurement of the half-lives of several other long-lived radionuclides.

  16. Thermodynamic study of the complexation of protactinium(V) with diethylenetriaminepentaacetic acid.

    PubMed

    Mendes, Mickaël; Leguay, Sébastien; Le Naour, Claire; Hamadi, Séna; Roques, Jérôme; Moisy, Philippe; Guillaumont, Dominique; Topin, Sylvain; Aupiais, Jean; Den Auwer, Christophe; Hennig, Christoph

    2013-07-01

    The complex formation of protactinium(V) with DTPA was studied at different temperatures (25-50 °C) and ionic strengths (0.1-1 M) with the element at tracer scale. Irrespective of the temperature and ionic strength studied, only one neutral complex with (1:1) stoichiometry was identified from solvent extraction and capillary electrophoresis coupled to ICP-MS (CE-ICP-MS) experiments. Density Functional Theory (DFT) calculations revealed that two complexes can be considered: Pa(DTPA) and PaO(H2DTPA). The associated formation constants were determined from solvent extraction data at different ionic strengths and temperatures and then extrapolated to zero ionic strength by SIT methodology. These constants are valid, regardless of complex form, Pa(DTPA) or PaO(H2DTPA). The standard thermodynamic data determined with these extrapolated constants revealed a very stable complex formed energetically by an endothermic contribution which is counter balanced by a strong entropic contribution. Both, the positive enthalpy and entropy energy terms suggest the formation of an inner sphere complex.

  17. Revealing Disparate Chemistries of Protactinium and Uranium. Synthesis of the Molecular Uranium Tetroxide Anion, UO4().

    PubMed

    de Jong, Wibe A; Dau, Phuong D; Wilson, Richard E; Marçalo, Joaquim; Van Stipdonk, Michael J; Corcovilos, Theodore A; Berden, Giel; Martens, Jonathan; Oomens, Jos; Gibson, John K

    2017-03-20

    The synthesis, reactivity, structures, and bonding in gas-phase binary and complex oxide anion molecules of protactinium and uranium have been studied by experiment and theory. The oxalate ions, An(V)O2(C2O4)(-), where An = Pa or U, are essentially actinyl ions, An(V)O2(+), coordinated by an oxalate dianion. Both react with water to yield the pentavalent hydroxides, An(V)O(OH)2(C2O4)(-). The chemistry of Pa and U becomes divergent for reactions that result in oxidation: whereas Pa(VI) is inaccessible, U(VI) is very stable. The U(V)O2(C2O4)(-) complex exhibits a remarkable spontaneous exothermic replacement of the oxalate ligand by O2 to yield UO4(-) and two CO2 molecules. The structure of the uranium tetroxide anion is computed to correspond to distorted uranyl, U(VI)O2(2+), coordinated in the equatorial plane by two equivalent O atoms each having formal charges of -1.5 and U-O bond orders intermediate between single and double. The unreactive nature of Pa(V)O2(C2O4)(-) toward O2 is a manifestation of the resistance toward oxidation of Pa(V), and clearly reveals the disparate chemistries of Pa and U. The uranium tetroxide anion, UO4(-), reacts with water to yield UO5H2(-). Infrared spectra obtained for UO5H2(-) confirm the computed lowest-energy structure, UO3(OH)2(-).

  18. 48 CFR 234.7100 - Policy.

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ... DEFENSE SPECIAL CATEGORIES OF CONTRACTING MAJOR SYSTEM ACQUISITION Cost and Software Data Reporting 234.7100 Policy. (a) The cost and software data reporting (CSDR) requirement is mandatory for major defense... data reporting and software resources data reporting. (b) Prior to contract award, contracting...

  19. 48 CFR 234.201 - Policy.

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ... Standard 748, Earned Value Management Systems (ANSI/EIA-748). (ii) For cost or incentive contracts and.../EIA-748. (iii) For cost or incentive contracts and subcontracts valued at less than $20,000,000— (A... in ANSI/EIA-748, follow the review procedures at PGI 234.201(2). (3) The Defense Contract...

  20. 48 CFR 234.201 - Policy.

    Code of Federal Regulations, 2012 CFR

    2012-10-01

    ... Standard 748, Earned Value Management Systems (ANSI/EIA-748). (ii) For cost or incentive contracts and.../EIA-748. (iii) For cost or incentive contracts and subcontracts valued at less than $20,000,000— (A... in ANSI/EIA-748, follow the review procedures at PGI 234.201(2). (3) The Defense Contract...

  1. 48 CFR 234.201 - Policy.

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ... Standard 748, Earned Value Management Systems (ANSI/EIA-748). (ii) For cost or incentive contracts and.../EIA-748. (iii) For cost or incentive contracts and subcontracts valued at less than $20,000,000— (A... in ANSI/EIA-748, follow the review procedures at PGI 234.201(2). (3) The Defense Contract...

  2. 48 CFR 234.201 - Policy.

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ... Standard 748, Earned Value Management Systems (ANSI/EIA-748). (ii) For cost or incentive contracts and.../EIA-748. (iii) For cost or incentive contracts and subcontracts valued at less than $20,000,000— (A... in ANSI/EIA-748, follow the review procedures at PGI 234.201(2). (3) The Defense Contract...

  3. 14 CFR 234.1 - Purpose.

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ... REGULATIONS AIRLINE SERVICE QUALITY PERFORMANCE REPORTS § 234.1 Purpose. The purpose of this part is to set...' quality of service can be made available to consumers of air transportation. This part also requires that service quality data be disclosed directly to consumers....

  4. 48 CFR 234.201 - Policy.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... DEFENSE SPECIAL CATEGORIES OF CONTRACTING MAJOR SYSTEM ACQUISITION Earned Value Management System § 234.201 Policy. (1) DoD applies the earned value management system requirement as follows: (i) For cost or incentive contracts and subcontracts valued at $20,000,000 or more, the earned value management system shall...

  5. 24 CFR 234.26 - Project requirements.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ... CONDOMINIUM OWNERSHIP MORTGAGE INSURANCE Eligibility Requirements-Individually Owned Units § 234.26 Project... be acceptable. (b) Plan of condominium ownership. The project in which the unit is located shall have been committed to a plan of condominium ownership by a deed, or other recorded instrument, that...

  6. 14 CFR 234.3 - Applicability.

    Code of Federal Regulations, 2011 CFR

    2011-01-01

    ... Aeronautics and Space OFFICE OF THE SECRETARY, DEPARTMENT OF TRANSPORTATION (AVIATION PROCEEDINGS) ECONOMIC REGULATIONS AIRLINE SERVICE QUALITY PERFORMANCE REPORTS § 234.3 Applicability. This part applies to certain domestic scheduled passenger flights that are held out to the public by certificated air carriers...

  7. 14 CFR 234.3 - Applicability.

    Code of Federal Regulations, 2012 CFR

    2012-01-01

    ... Aeronautics and Space OFFICE OF THE SECRETARY, DEPARTMENT OF TRANSPORTATION (AVIATION PROCEEDINGS) ECONOMIC REGULATIONS AIRLINE SERVICE QUALITY PERFORMANCE REPORTS § 234.3 Applicability. This part applies to certain domestic scheduled passenger flights that are held out to the public by certificated air carriers...

  8. 14 CFR 234.3 - Applicability.

    Code of Federal Regulations, 2014 CFR

    2014-01-01

    ... Aeronautics and Space OFFICE OF THE SECRETARY, DEPARTMENT OF TRANSPORTATION (AVIATION PROCEEDINGS) ECONOMIC REGULATIONS AIRLINE SERVICE QUALITY PERFORMANCE REPORTS § 234.3 Applicability. This part applies to certain domestic scheduled passenger flights that are held out to the public by certificated air carriers...

  9. 48 CFR 234.7100 - Policy.

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ... DEFENSE SPECIAL CATEGORIES OF CONTRACTING MAJOR SYSTEM ACQUISITION Cost and Software Data Reporting 234.7100 Policy. (a) The cost and software data reporting (CSDR) requirement is mandatory for major defense... data reporting and software resources data reporting. (b) Prior to contract award, contracting...

  10. 48 CFR 234.7100 - Policy.

    Code of Federal Regulations, 2012 CFR

    2012-10-01

    ... DEFENSE SPECIAL CATEGORIES OF CONTRACTING MAJOR SYSTEM ACQUISITION Cost and Software Data Reporting 234.7100 Policy. (a) The cost and software data reporting (CSDR) requirement is mandatory for major defense... data reporting and software resources data reporting. (b) Prior to contract award, contracting...

  11. 48 CFR 234.7100 - Policy.

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ... DEFENSE SPECIAL CATEGORIES OF CONTRACTING MAJOR SYSTEM ACQUISITION Cost and Software Data Reporting 234.7100 Policy. (a) The cost and software data reporting (CSDR) requirement is mandatory for major defense... data reporting and software resources data reporting. (b) Prior to contract award, contracting...

  12. Decay Properties of New Isotopes 234Bk and 230Am, and Even-Even Nuclides 234Cm and 230Pu

    NASA Astrophysics Data System (ADS)

    Kaji, Daiya; Morimoto, Kouji; Haba, Hiromitsu; Ideguchi, Eiji; Koura, Hiroyuki; Morita, Kosuke

    2016-01-01

    A neutron-deficient berkelium isotope of 234Bk produced via 197Au(40Ar,3n) reaction and the daughter product of 230Am were newly identified. Alpha-decay energies of eleven 234Bk were found at 7.62-7.96 MeV, and six fission events that correlated with the α-decay of 234Bk were observed. The half-lives of 234Bk and 230Am were determined to be 19 - 4 + 6 s and 32 - 9 + 22 s, respectively. The 234Cm followed by the β-decay of 234Bk was also identified.

  13. 34 CFR 75.234 - The conditions of the grant.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... 34 Education 1 2011-07-01 2011-07-01 false The conditions of the grant. 75.234 Section 75.234 Education Office of the Secretary, Department of Education DIRECT GRANT PROGRAMS How Grants Are Made Procedures to Make A Grant § 75.234 The conditions of the grant. (a) The Secretary makes a grant to an...

  14. 34 CFR 75.234 - The conditions of the grant.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... 34 Education 1 2014-07-01 2014-07-01 false The conditions of the grant. 75.234 Section 75.234 Education Office of the Secretary, Department of Education DIRECT GRANT PROGRAMS How Grants Are Made Procedures to Make A Grant § 75.234 The conditions of the grant. (a) The Secretary makes a grant to an...

  15. 34 CFR 75.234 - The conditions of the grant.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... 34 Education 1 2013-07-01 2013-07-01 false The conditions of the grant. 75.234 Section 75.234 Education Office of the Secretary, Department of Education DIRECT GRANT PROGRAMS How Grants Are Made Procedures to Make A Grant § 75.234 The conditions of the grant. (a) The Secretary makes a grant to an...

  16. 49 CFR 234.215 - Standby power system.

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ... 49 Transportation 4 2011-10-01 2011-10-01 false Standby power system. 234.215 Section 234.215..., DEPARTMENT OF TRANSPORTATION GRADE CROSSING SIGNAL SYSTEM SAFETY AND STATE ACTION PLANS Maintenance, Inspection, and Testing Maintenance Standards § 234.215 Standby power system. A standby source of power shall...

  17. 49 CFR 234.215 - Standby power system.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... 49 Transportation 4 2010-10-01 2010-10-01 false Standby power system. 234.215 Section 234.215..., DEPARTMENT OF TRANSPORTATION GRADE CROSSING SIGNAL SYSTEM SAFETY AND STATE ACTION PLANS Maintenance, Inspection, and Testing Maintenance Standards § 234.215 Standby power system. A standby source of power shall...

  18. 49 CFR 234.201 - Location of plans.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... 49 Transportation 4 2010-10-01 2010-10-01 false Location of plans. 234.201 Section 234.201..., Inspection, and Testing Maintenance Standards § 234.201 Location of plans. Plans required for proper maintenance and testing shall be kept at each highway-rail grade crossing warning system location. Plans shall...

  19. 24 CFR 234.63 - Location of property.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ... 24 Housing and Urban Development 2 2010-04-01 2010-04-01 false Location of property. 234.63 Section 234.63 Housing and Urban Development Regulations Relating to Housing and Urban Development... CONDOMINIUM OWNERSHIP MORTGAGE INSURANCE Eligibility Requirements-Individually Owned Units § 234.63 Location...

  20. 40 CFR 725.234 - Activities conducted inside a structure.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... for Research and Development Activities § 725.234 Activities conducted inside a structure. A person... structure. 725.234 Section 725.234 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED... manufactured, imported, or processed solely for research and development activities. (b) The microorganism is...

  1. 40 CFR 725.234 - Activities conducted inside a structure.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... for Research and Development Activities § 725.234 Activities conducted inside a structure. A person... structure. 725.234 Section 725.234 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED... manufactured, imported, or processed solely for research and development activities. (b) The microorganism is...

  2. 40 CFR 725.234 - Activities conducted inside a structure.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... for Research and Development Activities § 725.234 Activities conducted inside a structure. A person... structure. 725.234 Section 725.234 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED... manufactured, imported, or processed solely for research and development activities. (b) The microorganism is...

  3. 48 CFR 234.7101 - Solicitation provision and contract clause.

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ... Software Data Reporting 234.7101 Solicitation provision and contract clause. (a)(1) Use the provision at 252.234-7003, Notice of Cost and Software Data Reporting System, in all solicitations that include the clause at 252.234-7004, Cost and Software Data Reporting. (2) Use the provision with its Alternate I...

  4. 17 CFR 256.234 - Accounts payable to associate companies.

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ... companies. 256.234 Section 256.234 Commodity and Securities Exchanges SECURITIES AND EXCHANGE COMMISSION (CONTINUED) UNIFORM SYSTEM OF ACCOUNTS FOR MUTUAL SERVICE COMPANIES AND SUBSIDIARY SERVICE COMPANIES, PUBLIC UTILITY HOLDING COMPANY ACT OF 1935 7. Current and Accrued Liabilities § 256.234 Accounts payable...

  5. 17 CFR 256.234 - Accounts payable to associate companies.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ... companies. 256.234 Section 256.234 Commodity and Securities Exchanges SECURITIES AND EXCHANGE COMMISSION (CONTINUED) UNIFORM SYSTEM OF ACCOUNTS FOR MUTUAL SERVICE COMPANIES AND SUBSIDIARY SERVICE COMPANIES, PUBLIC UTILITY HOLDING COMPANY ACT OF 1935 7. Current and Accrued Liabilities § 256.234 Accounts payable...

  6. 14 CFR 234.5 - Form of reports.

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ... 14 Aeronautics and Space 4 2010-01-01 2010-01-01 false Form of reports. 234.5 Section 234.5 Aeronautics and Space OFFICE OF THE SECRETARY, DEPARTMENT OF TRANSPORTATION (AVIATION PROCEEDINGS) ECONOMIC REGULATIONS AIRLINE SERVICE QUALITY PERFORMANCE REPORTS § 234.5 Form of reports. Except where otherwise...

  7. 22 CFR 23.4 - Representative value in exchange.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ... 22 Foreign Relations 1 2010-04-01 2010-04-01 false Representative value in exchange. 23.4 Section 23.4 Foreign Relations DEPARTMENT OF STATE FEES AND FUNDS FINANCE AND ACCOUNTING § 23.4 Representative value in exchange. Representative value in exchange for the collection of a fee means...

  8. 49 CFR 234.269 - Cut-out circuits.

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ... 49 Transportation 4 2011-10-01 2011-10-01 false Cut-out circuits. 234.269 Section 234.269..., Inspection, and Testing Inspections and Tests § 234.269 Cut-out circuits. Each cut-out circuit shall be tested at least once every three months to determine that the circuit functions as intended. For purposes...

  9. 49 CFR 234.269 - Cut-out circuits.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... 49 Transportation 4 2010-10-01 2010-10-01 false Cut-out circuits. 234.269 Section 234.269..., Inspection, and Testing Inspections and Tests § 234.269 Cut-out circuits. Each cut-out circuit shall be tested at least once every three months to determine that the circuit functions as intended. For purposes...

  10. 50 CFR 648.234 - Gear restrictions. [Reserved

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ... 50 Wildlife and Fisheries 12 2013-10-01 2013-10-01 false Gear restrictions. 648.234 Section 648.234 Wildlife and Fisheries FISHERY CONSERVATION AND MANAGEMENT, NATIONAL OCEANIC AND ATMOSPHERIC... Spiny Dogfish Fishery § 648.234 Gear restrictions....

  11. 50 CFR 648.234 - Gear restrictions. [Reserved

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ... 50 Wildlife and Fisheries 10 2011-10-01 2011-10-01 false Gear restrictions. 648.234 Section 648.234 Wildlife and Fisheries FISHERY CONSERVATION AND MANAGEMENT, NATIONAL OCEANIC AND ATMOSPHERIC... Spiny Dogfish Fishery § 648.234 Gear restrictions....

  12. 50 CFR 648.234 - Gear restrictions. [Reserved

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ... 50 Wildlife and Fisheries 12 2014-10-01 2014-10-01 false Gear restrictions. 648.234 Section 648.234 Wildlife and Fisheries FISHERY CONSERVATION AND MANAGEMENT, NATIONAL OCEANIC AND ATMOSPHERIC... Spiny Dogfish Fishery § 648.234 Gear restrictions....

  13. 50 CFR 648.234 - Gear restrictions. [Reserved

    Code of Federal Regulations, 2012 CFR

    2012-10-01

    ... 50 Wildlife and Fisheries 12 2012-10-01 2012-10-01 false Gear restrictions. 648.234 Section 648.234 Wildlife and Fisheries FISHERY CONSERVATION AND MANAGEMENT, NATIONAL OCEANIC AND ATMOSPHERIC... Spiny Dogfish Fishery § 648.234 Gear restrictions....

  14. 49 CFR 234.217 - Flashing light units.

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ... 49 Transportation 4 2011-10-01 2011-10-01 false Flashing light units. 234.217 Section 234.217..., Inspection, and Testing Maintenance Standards § 234.217 Flashing light units. (a) Each flashing light unit.... (b) Each flashing light unit shall be maintained to prevent dust and moisture from entering...

  15. 49 CFR 234.217 - Flashing light units.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... 49 Transportation 4 2010-10-01 2010-10-01 false Flashing light units. 234.217 Section 234.217..., Inspection, and Testing Maintenance Standards § 234.217 Flashing light units. (a) Each flashing light unit.... (b) Each flashing light unit shall be maintained to prevent dust and moisture from entering...

  16. 24 CFR 234.65 - Nature of title.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ... 24 Housing and Urban Development 2 2010-04-01 2010-04-01 false Nature of title. 234.65 Section 234.65 Housing and Urban Development Regulations Relating to Housing and Urban Development (Continued... OWNERSHIP MORTGAGE INSURANCE Eligibility Requirements-Individually Owned Units § 234.65 Nature of title. A...

  17. 24 CFR 234.65 - Nature of title.

    Code of Federal Regulations, 2013 CFR

    2013-04-01

    ... 24 Housing and Urban Development 2 2013-04-01 2013-04-01 false Nature of title. 234.65 Section 234.65 Housing and Urban Development Regulations Relating to Housing and Urban Development (Continued... OWNERSHIP MORTGAGE INSURANCE Eligibility Requirements-Individually Owned Units § 234.65 Nature of title. A...

  18. 24 CFR 234.65 - Nature of title.

    Code of Federal Regulations, 2014 CFR

    2014-04-01

    ... 24 Housing and Urban Development 2 2014-04-01 2014-04-01 false Nature of title. 234.65 Section 234.65 Housing and Urban Development Regulations Relating to Housing and Urban Development (Continued... OWNERSHIP MORTGAGE INSURANCE Eligibility Requirements-Individually Owned Units § 234.65 Nature of title. A...

  19. 24 CFR 234.65 - Nature of title.

    Code of Federal Regulations, 2012 CFR

    2012-04-01

    ... 24 Housing and Urban Development 2 2012-04-01 2012-04-01 false Nature of title. 234.65 Section 234.65 Housing and Urban Development Regulations Relating to Housing and Urban Development (Continued... OWNERSHIP MORTGAGE INSURANCE Eligibility Requirements-Individually Owned Units § 234.65 Nature of title. A...

  20. 24 CFR 234.65 - Nature of title.

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ... 24 Housing and Urban Development 2 2011-04-01 2011-04-01 false Nature of title. 234.65 Section 234.65 Housing and Urban Development Regulations Relating to Housing and Urban Development (Continued... OWNERSHIP MORTGAGE INSURANCE Eligibility Requirements-Individually Owned Units § 234.65 Nature of title. A...

  1. 8 CFR 234.3 - Aircraft; how considered.

    Code of Federal Regulations, 2014 CFR

    2014-01-01

    ... 8 Aliens and Nationality 1 2014-01-01 2014-01-01 false Aircraft; how considered. 234.3 Section 234... PORTS OF ENTRY FOR ALIENS ARRIVING BY CIVIL AIRCRAFT § 234.3 Aircraft; how considered. Except as otherwise specifically provided in the Immigration and Nationality Act and this chapter, aircraft...

  2. 49 CFR 234.235 - Insulated rail joints.

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ... 49 Transportation 4 2011-10-01 2011-10-01 false Insulated rail joints. 234.235 Section 234.235 Transportation Other Regulations Relating to Transportation (Continued) FEDERAL RAILROAD ADMINISTRATION..., Inspection, and Testing Maintenance Standards § 234.235 Insulated rail joints. Each insulated rail joint...

  3. 10 CFR 72.234 - Conditions of approval.

    Code of Federal Regulations, 2011 CFR

    2011-01-01

    ... 10 Energy 2 2011-01-01 2011-01-01 false Conditions of approval. 72.234 Section 72.234 Energy NUCLEAR REGULATORY COMMISSION (CONTINUED) LICENSING REQUIREMENTS FOR THE INDEPENDENT STORAGE OF SPENT... Spent Fuel Storage Casks § 72.234 Conditions of approval. (a) The certificate holder and applicant for...

  4. 10 CFR 72.234 - Conditions of approval.

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ... 10 Energy 2 2010-01-01 2010-01-01 false Conditions of approval. 72.234 Section 72.234 Energy NUCLEAR REGULATORY COMMISSION (CONTINUED) LICENSING REQUIREMENTS FOR THE INDEPENDENT STORAGE OF SPENT... Spent Fuel Storage Casks § 72.234 Conditions of approval. (a) The certificate holder and applicant for...

  5. 49 CFR 234.275 - Processor-based systems.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... 49 Transportation 4 2010-10-01 2010-10-01 false Processor-based systems. 234.275 Section 234.275..., Inspection, and Testing Requirements for Processor-Based Systems § 234.275 Processor-based systems. (a... requirements of this subpart, a railroad may elect to qualify an existing processor-based product under...

  6. 34 CFR 75.234 - The conditions of the grant.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 34 Education 1 2010-07-01 2010-07-01 false The conditions of the grant. 75.234 Section 75.234 Education Office of the Secretary, Department of Education DIRECT GRANT PROGRAMS How Grants Are Made Procedures to Make A Grant § 75.234 The conditions of the grant. (a) The Secretary makes a grant to an...

  7. 49 CFR 234.227 - Train detection apparatus.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... 49 Transportation 4 2010-10-01 2010-10-01 false Train detection apparatus. 234.227 Section 234.227..., Inspection, and Testing Maintenance Standards § 234.227 Train detection apparatus. (a) Train detection apparatus shall be maintained to detect a train or railcar in any part of a train detection circuit,...

  8. 49 CFR 234.227 - Train detection apparatus.

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ... 49 Transportation 4 2011-10-01 2011-10-01 false Train detection apparatus. 234.227 Section 234.227..., Inspection, and Testing Maintenance Standards § 234.227 Train detection apparatus. (a) Train detection apparatus shall be maintained to detect a train or railcar in any part of a train detection circuit,...

  9. 14 CFR 234.11 - Disclosure to consumers.

    Code of Federal Regulations, 2011 CFR

    2011-01-01

    ... 14 Aeronautics and Space 4 2011-01-01 2011-01-01 false Disclosure to consumers. 234.11 Section 234.11 Aeronautics and Space OFFICE OF THE SECRETARY, DEPARTMENT OF TRANSPORTATION (AVIATION PROCEEDINGS) ECONOMIC REGULATIONS AIRLINE SERVICE QUALITY PERFORMANCE REPORTS § 234.11 Disclosure to consumers....

  10. 8 CFR 234.3 - Aircraft; how considered.

    Code of Federal Regulations, 2013 CFR

    2013-01-01

    ... 8 Aliens and Nationality 1 2013-01-01 2013-01-01 false Aircraft; how considered. 234.3 Section 234... PORTS OF ENTRY FOR ALIENS ARRIVING BY CIVIL AIRCRAFT § 234.3 Aircraft; how considered. Except as otherwise specifically provided in the Immigration and Nationality Act and this chapter, aircraft...

  11. 8 CFR 234.3 - Aircraft; how considered.

    Code of Federal Regulations, 2011 CFR

    2011-01-01

    ... 8 Aliens and Nationality 1 2011-01-01 2011-01-01 false Aircraft; how considered. 234.3 Section 234... PORTS OF ENTRY FOR ALIENS ARRIVING BY CIVIL AIRCRAFT § 234.3 Aircraft; how considered. Except as otherwise specifically provided in the Immigration and Nationality Act and this chapter, aircraft...

  12. 8 CFR 234.3 - Aircraft; how considered.

    Code of Federal Regulations, 2012 CFR

    2012-01-01

    ... 8 Aliens and Nationality 1 2012-01-01 2012-01-01 false Aircraft; how considered. 234.3 Section 234... PORTS OF ENTRY FOR ALIENS ARRIVING BY CIVIL AIRCRAFT § 234.3 Aircraft; how considered. Except as otherwise specifically provided in the Immigration and Nationality Act and this chapter, aircraft...

  13. 49 CFR 234.255 - Gate arm and gate mechanism.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... 49 Transportation 4 2010-10-01 2010-10-01 false Gate arm and gate mechanism. 234.255 Section 234... Maintenance, Inspection, and Testing Inspections and Tests § 234.255 Gate arm and gate mechanism. (a) Each gate arm and gate mechanism shall be inspected at least once each month. (b) Gate arm movement shall...

  14. 49 CFR 234.257 - Warning system operation.

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ... 49 Transportation 4 2011-10-01 2011-10-01 false Warning system operation. 234.257 Section 234.257..., Inspection, and Testing Inspections and Tests § 234.257 Warning system operation. (a) Each highway-rail crossing warning system shall be tested to determine that it functions as intended when it is placed...

  15. 49 CFR 234.257 - Warning system operation.

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ... 49 Transportation 4 2014-10-01 2014-10-01 false Warning system operation. 234.257 Section 234.257... EMERGENCY NOTIFICATION SYSTEMS Maintenance, Inspection, and Testing Inspections and Tests § 234.257 Warning system operation. (a) Each highway-rail crossing warning system shall be tested to determine that...

  16. 49 CFR 234.225 - Activation of warning system.

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ... 49 Transportation 4 2011-10-01 2011-10-01 false Activation of warning system. 234.225 Section 234... Maintenance, Inspection, and Testing Maintenance Standards § 234.225 Activation of warning system. A highway-rail grade crossing warning system shall be maintained to activate in accordance with the design of...

  17. 49 CFR 234.257 - Warning system operation.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... 49 Transportation 4 2010-10-01 2010-10-01 false Warning system operation. 234.257 Section 234.257..., Inspection, and Testing Inspections and Tests § 234.257 Warning system operation. (a) Each highway-rail crossing warning system shall be tested to determine that it functions as intended when it is placed...

  18. 49 CFR 234.257 - Warning system operation.

    Code of Federal Regulations, 2012 CFR

    2012-10-01

    ... 49 Transportation 4 2012-10-01 2012-10-01 false Warning system operation. 234.257 Section 234.257... EMERGENCY NOTIFICATION SYSTEMS Maintenance, Inspection, and Testing Inspections and Tests § 234.257 Warning system operation. (a) Each highway-rail crossing warning system shall be tested to determine that...

  19. 49 CFR 234.225 - Activation of warning system.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... 49 Transportation 4 2010-10-01 2010-10-01 false Activation of warning system. 234.225 Section 234... Maintenance, Inspection, and Testing Maintenance Standards § 234.225 Activation of warning system. A highway-rail grade crossing warning system shall be maintained to activate in accordance with the design of...

  20. 49 CFR 234.257 - Warning system operation.

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ... 49 Transportation 4 2013-10-01 2013-10-01 false Warning system operation. 234.257 Section 234.257... EMERGENCY NOTIFICATION SYSTEMS Maintenance, Inspection, and Testing Inspections and Tests § 234.257 Warning system operation. (a) Each highway-rail crossing warning system shall be tested to determine that...

  1. 32 CFR 234.12 - Restriction on animals.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... 32 National Defense 2 2011-07-01 2011-07-01 false Restriction on animals. 234.12 Section 234.12 National Defense Department of Defense (Continued) OFFICE OF THE SECRETARY OF DEFENSE (CONTINUED) MISCELLANEOUS CONDUCT ON THE PENTAGON RESERVATION § 234.12 Restriction on animals. Animals, except guide dogs...

  2. 32 CFR 234.12 - Restriction on animals.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... 32 National Defense 2 2013-07-01 2013-07-01 false Restriction on animals. 234.12 Section 234.12 National Defense Department of Defense (Continued) OFFICE OF THE SECRETARY OF DEFENSE (CONTINUED) MISCELLANEOUS CONDUCT ON THE PENTAGON RESERVATION § 234.12 Restriction on animals. Animals, except guide dogs...

  3. 32 CFR 234.12 - Restriction on animals.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 32 National Defense 2 2010-07-01 2010-07-01 false Restriction on animals. 234.12 Section 234.12 National Defense Department of Defense (Continued) OFFICE OF THE SECRETARY OF DEFENSE (CONTINUED) MISCELLANEOUS CONDUCT ON THE PENTAGON RESERVATION § 234.12 Restriction on animals. Animals, except guide dogs...

  4. 32 CFR 234.12 - Restriction on animals.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... 32 National Defense 2 2012-07-01 2012-07-01 false Restriction on animals. 234.12 Section 234.12 National Defense Department of Defense (Continued) OFFICE OF THE SECRETARY OF DEFENSE (CONTINUED) MISCELLANEOUS CONDUCT ON THE PENTAGON RESERVATION § 234.12 Restriction on animals. Animals, except guide dogs...

  5. 32 CFR 234.12 - Restriction on animals.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... 32 National Defense 2 2014-07-01 2014-07-01 false Restriction on animals. 234.12 Section 234.12 National Defense Department of Defense (Continued) OFFICE OF THE SECRETARY OF DEFENSE (CONTINUED) MISCELLANEOUS CONDUCT ON THE PENTAGON RESERVATION § 234.12 Restriction on animals. Animals, except guide dogs...

  6. Dynamics of genome architecture in Rhizobium sp. strain NGR234.

    PubMed

    Mavingui, Patrick; Flores, Margarita; Guo, Xianwu; Dávila, Guillermo; Perret, Xavier; Broughton, William J; Palacios, Rafael

    2002-01-01

    Bacterial genomes are usually partitioned in several replicons, which are dynamic structures prone to mutation and genomic rearrangements, thus contributing to genome evolution. Nevertheless, much remains to be learned about the origins and dynamics of the formation of bacterial alternative genomic states and their possible biological consequences. To address these issues, we have studied the dynamics of the genome architecture in Rhizobium sp. strain NGR234 and analyzed its biological significance. NGR234 genome consists of three replicons: the symbiotic plasmid pNGR234a (536,165 bp), the megaplasmid pNGR234b (>2,000 kb), and the chromosome (>3,700 kb). Here we report that genome analyses of cell siblings showed the occurrence of large-scale DNA rearrangements consisting of cointegrations and excisions between the three replicons. As a result, four new genomic architectures have emerged. Three consisted of the cointegrates between two replicons: chromosome-pNGR234a, chromosome-pNGR234b, and pNGR234a-pNGR234b. The other consisted of a cointegrate of the three replicons (chromosome-pNGR234a-pNGR234b). Cointegration and excision of pNGR234a with either the chromosome or pNGR234b were studied and found to proceed via a Campbell-type mechanism, mediated by insertion sequence elements. We provide evidence showing that changes in the genome architecture did not alter the growth and symbiotic proficiency of Rhizobium derivatives.

  7. 14 CFR 234.11 - Disclosure to consumers.

    Code of Federal Regulations, 2014 CFR

    2014-01-01

    ... 14 Aeronautics and Space 4 2014-01-01 2014-01-01 false Disclosure to consumers. 234.11 Section 234.11 Aeronautics and Space OFFICE OF THE SECRETARY, DEPARTMENT OF TRANSPORTATION (AVIATION PROCEEDINGS) ECONOMIC REGULATIONS AIRLINE SERVICE QUALITY PERFORMANCE REPORTS § 234.11 Disclosure to consumers. (a...

  8. 49 CFR 234.101 - Employee notification rules.

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ... 49 Transportation 4 2013-10-01 2013-10-01 false Employee notification rules. 234.101 Section 234... ADMINISTRATION, DEPARTMENT OF TRANSPORTATION GRADE CROSSING SAFETY, INCLUDING SIGNAL SYSTEMS, STATE ACTION PLANS... Highway-Rail Grade Crossings § 234.101 Employee notification rules. Each railroad shall issue rules...

  9. 49 CFR 234.255 - Gate arm and gate mechanism.

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ... 49 Transportation 4 2011-10-01 2011-10-01 false Gate arm and gate mechanism. 234.255 Section 234... Maintenance, Inspection, and Testing Inspections and Tests § 234.255 Gate arm and gate mechanism. (a) Each gate arm and gate mechanism shall be inspected at least once each month. (b) Gate arm movement shall...

  10. 49 CFR 234.309 - ENS signs in general.

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ... 49 Transportation 4 2014-10-01 2014-10-01 false ENS signs in general. 234.309 Section 234.309... at Highway-Rail and Pathway Grade Crossings § 234.309 ENS signs in general. (a) Provision of... the telephone number that is to be displayed on the ENS sign at the crossing, not later than 180...

  11. 49 CFR 234.309 - ENS signs in general.

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ... 49 Transportation 4 2013-10-01 2013-10-01 false ENS signs in general. 234.309 Section 234.309... at Highway-Rail and Pathway Grade Crossings § 234.309 ENS signs in general. (a) Provision of... the telephone number that is to be displayed on the ENS sign at the crossing, not later than 180...

  12. 49 CFR 234.309 - ENS signs in general.

    Code of Federal Regulations, 2012 CFR

    2012-10-01

    ... 49 Transportation 4 2012-10-01 2012-10-01 false ENS signs in general. 234.309 Section 234.309... at Highway-Rail and Pathway Grade Crossings § 234.309 ENS signs in general. (a) Provision of... the telephone number that is to be displayed on the ENS sign at the crossing, not later than 180...

  13. 10 CFR 72.234 - Conditions of approval.

    Code of Federal Regulations, 2013 CFR

    2013-01-01

    ... 10 Energy 2 2013-01-01 2013-01-01 false Conditions of approval. 72.234 Section 72.234 Energy NUCLEAR REGULATORY COMMISSION (CONTINUED) LICENSING REQUIREMENTS FOR THE INDEPENDENT STORAGE OF SPENT... Spent Fuel Storage Casks § 72.234 Conditions of approval. (a) The certificate holder and applicant for a...

  14. 10 CFR 72.234 - Conditions of approval.

    Code of Federal Regulations, 2014 CFR

    2014-01-01

    ... 10 Energy 2 2014-01-01 2014-01-01 false Conditions of approval. 72.234 Section 72.234 Energy NUCLEAR REGULATORY COMMISSION (CONTINUED) LICENSING REQUIREMENTS FOR THE INDEPENDENT STORAGE OF SPENT... Spent Fuel Storage Casks § 72.234 Conditions of approval. (a) The certificate holder and applicant for a...

  15. 49 CFR 384.234 - Driver medical certification recordkeeping.

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ... 49 Transportation 5 2011-10-01 2011-10-01 false Driver medical certification recordkeeping. 384.234 Section 384.234 Transportation Other Regulations Relating to Transportation (Continued) FEDERAL... Compliance by States § 384.234 Driver medical certification recordkeeping. The State must meet the medical...

  16. 49 CFR 384.234 - Driver medical certification recordkeeping.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... 49 Transportation 5 2010-10-01 2010-10-01 false Driver medical certification recordkeeping. 384.234 Section 384.234 Transportation Other Regulations Relating to Transportation (Continued) FEDERAL... Compliance by States § 384.234 Driver medical certification recordkeeping. The State must meet the medical...

  17. 48 CFR 234.7101 - Solicitation provision and contract clause.

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ... Software Data Reporting 234.7101 Solicitation provision and contract clause. (a)(1) Use the provision at 252.234-7003, Notice of Cost and Software Data Reporting System, in all solicitations that include the clause at 252.234-7004, Cost and Software Data Reporting. (2) Use the provision with its Alternate I...

  18. 48 CFR 234.7101 - Solicitation provision and contract clause.

    Code of Federal Regulations, 2012 CFR

    2012-10-01

    ... Software Data Reporting 234.7101 Solicitation provision and contract clause. (a)(1) Use the provision at 252.234-7003, Notice of Cost and Software Data Reporting System, in all solicitations that include the clause at 252.234-7004, Cost and Software Data Reporting. (2) Use the provision with its Alternate I...

  19. 48 CFR 234.7101 - Solicitation provision and contract clause.

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ... Software Data Reporting 234.7101 Solicitation provision and contract clause. (a)(1) Use the provision at 252.234-7003, Notice of Cost and Software Data Reporting System, in all solicitations that include the clause at 252.234-7004, Cost and Software Data Reporting. (2) Use the provision with its Alternate I...

  20. 28 CFR 2.34 - Rescission of parole.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 28 Judicial Administration 1 2010-07-01 2010-07-01 false Rescission of parole. 2.34 Section 2.34 Judicial Administration DEPARTMENT OF JUSTICE PAROLE, RELEASE, SUPERVISION AND RECOMMITMENT OF PRISONERS, YOUTH OFFENDERS, AND JUVENILE DELINQUENTS United States Code Prisoners and Parolees § 2.34 Rescission...

  1. 8 CFR 234.3 - Aircraft; how considered.

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ... 8 Aliens and Nationality 1 2010-01-01 2010-01-01 false Aircraft; how considered. 234.3 Section 234... PORTS OF ENTRY FOR ALIENS ARRIVING BY CIVIL AIRCRAFT § 234.3 Aircraft; how considered. Except as otherwise specifically provided in the Immigration and Nationality Act and this chapter, aircraft arriving...

  2. 32 CFR 234.17 - Vehicles and traffic safety.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... 32 National Defense 2 2014-07-01 2014-07-01 false Vehicles and traffic safety. 234.17 Section 234...) MISCELLANEOUS CONDUCT ON THE PENTAGON RESERVATION § 234.17 Vehicles and traffic safety. (a) In general. Unless specifically addressed by regulations in this part, traffic and the use of vehicles within the...

  3. 32 CFR 234.17 - Vehicles and traffic safety.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... 32 National Defense 2 2012-07-01 2012-07-01 false Vehicles and traffic safety. 234.17 Section 234...) MISCELLANEOUS CONDUCT ON THE PENTAGON RESERVATION § 234.17 Vehicles and traffic safety. (a) In general. Unless specifically addressed by regulations in this part, traffic and the use of vehicles within the...

  4. 49 CFR 234.235 - Insulated rail joints.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... 49 Transportation 4 2010-10-01 2010-10-01 false Insulated rail joints. 234.235 Section 234.235 Transportation Other Regulations Relating to Transportation (Continued) FEDERAL RAILROAD ADMINISTRATION..., Inspection, and Testing Maintenance Standards § 234.235 Insulated rail joints. Each insulated rail joint used...

  5. 12 CFR 234.7 - Interest on balances.

    Code of Federal Regulations, 2014 CFR

    2014-01-01

    ... 12 Banks and Banking 4 2014-01-01 2014-01-01 false Interest on balances. 234.7 Section 234.7 Banks... (CONTINUED) DESIGNATED FINANCIAL MARKET UTILITIES (REGULATION HH) § 234.7 Interest on balances. (a) A Federal Reserve Bank may pay interest on balances maintained by a designated financial market utility at the...

  6. 7 CFR 1280.234 - Suspension or termination.

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ... AGREEMENTS AND ORDERS; MISCELLANEOUS COMMODITIES), DEPARTMENT OF AGRICULTURE LAMB PROMOTION, RESEARCH, AND INFORMATION ORDER Lamb Promotion, Research, and Information Order Miscellaneous § 1280.234 Suspension...

  7. Protactinium and isotopes of thorium in metalliferous sediments from the Bauer depression

    SciTech Connect

    Arslanov, K.A.; Kuznetsov, V.Yu.; Lokshin, N.V.; Pospelov, Yu.N.

    1989-01-01

    Results are presented of a study of the vertical distribution of /sup 238/U, /sup 234/U, /sup 232/Th, /sup 230/Th, and /sup 231/Pa isotopes in a column of metalliferous sediments from the Bauer depression (southeastern part of the Pacific Ocean). On the basis of the obtained data a hypothesis is formulated concerning the authigenic production of /sup 230/Th and /sup 231/Pa in these deposits, i.e, the similarity of the physicochemical behavior of /sup 230/Th and /sup 231/Pa found in pelagic sediments is found in these specific sediments also. We present arguments in favor of the identical behavior of these radionuclides in the marine environment. With the help of the ionium method of dating marine sediments, the average rate of sedimentation of the investigated column of metalliferous sediments from the Bauer depression was calculated.

  8. Protactinium-231 measurement and application to a uranium series transport model

    NASA Astrophysics Data System (ADS)

    Golian, C.; Nightingale, T.; Airey, P. L.

    1984-06-01

    Precise measurements of small deviations of 230Th/ 234U and 231Pa/ 235U contribute to the modelling of the geochemical transport of uranium series nuclides. The use of alpha-spectrometry to measure the second-order daughter product 227Th was the analytical technique chosen. It was thereby assumed that the intermediate 227Ac is immobile. Complete methematical expressions for the count rate in various regions of the spectrum have been developed. They allow calculation of the initial yield from the cumulative counts of 227Th and the interfering 223Ra. 224Ra and 212Bi for extended time periods. The resulting increase in precision is particularly useful at low levels. The approach to modelling the transport of uranium series nuclides down-gradient of deposits within the Alligator Rivers Uranium Province of the Northern Territory of Australia is outlined. Some preliminary data are presented which call into question the assumption of the immobility of the 227Ac.

  9. 27 CFR 46.234 - Tax payment deadline.

    Code of Federal Regulations, 2012 CFR

    2012-04-01

    ... 27 Alcohol, Tobacco Products and Firearms 2 2012-04-01 2011-04-01 true Tax payment deadline. 46.234 Section 46.234 Alcohol, Tobacco Products and Firearms ALCOHOL AND TOBACCO TAX AND TRADE BUREAU... CIGARETTE PAPERS AND TUBES Floor Stocks Tax on Certain Tobacco Products, Cigarette Papers, and...

  10. 28 CFR 2.34 - Rescission of parole.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... 28 Judicial Administration 1 2011-07-01 2011-07-01 false Rescission of parole. 2.34 Section 2.34 Judicial Administration DEPARTMENT OF JUSTICE PAROLE, RELEASE, SUPERVISION AND RECOMMITMENT OF PRISONERS... parole. (a) When an effective date of parole has been set by the Commission, release on that date...

  11. 28 CFR 2.34 - Rescission of parole.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... 28 Judicial Administration 1 2012-07-01 2012-07-01 false Rescission of parole. 2.34 Section 2.34 Judicial Administration DEPARTMENT OF JUSTICE PAROLE, RELEASE, SUPERVISION AND RECOMMITMENT OF PRISONERS... parole. (a) When an effective date of parole has been set by the Commission, release on that date...

  12. 28 CFR 2.34 - Rescission of parole.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... 28 Judicial Administration 1 2013-07-01 2013-07-01 false Rescission of parole. 2.34 Section 2.34 Judicial Administration DEPARTMENT OF JUSTICE PAROLE, RELEASE, SUPERVISION AND RECOMMITMENT OF PRISONERS... parole. (a) When an effective date of parole has been set by the Commission, release on that date...

  13. 28 CFR 2.34 - Rescission of parole.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... 28 Judicial Administration 1 2014-07-01 2014-07-01 false Rescission of parole. 2.34 Section 2.34 Judicial Administration DEPARTMENT OF JUSTICE PAROLE, RELEASE, SUPERVISION AND RECOMMITMENT OF PRISONERS... parole. (a) When an effective date of parole has been set by the Commission, release on that date...

  14. 40 CFR 86.233-94-86.234-94 - [Reserved

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 40 Protection of Environment 18 2010-07-01 2010-07-01 false 86.233-94-86.234-94 Section 86.233-94-86.234-94 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) AIR PROGRAMS... 1994 and Later Model Year Gasoline-Fueled New Light-Duty Vehicles, New Light-Duty Trucks and New Medium...

  15. 49 CFR 234.215 - Standby power system.

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ... 49 Transportation 4 2013-10-01 2013-10-01 false Standby power system. 234.215 Section 234.215... power system. A standby source of power shall be provided with sufficient capacity to operate the warning system for a reasonable length of time during a period of primary power interruption. The...

  16. 49 CFR 234.215 - Standby power system.

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ... 49 Transportation 4 2014-10-01 2014-10-01 false Standby power system. 234.215 Section 234.215... power system. A standby source of power shall be provided with sufficient capacity to operate the warning system for a reasonable length of time during a period of primary power interruption. The...

  17. 49 CFR 234.215 - Standby power system.

    Code of Federal Regulations, 2012 CFR

    2012-10-01

    ... 49 Transportation 4 2012-10-01 2012-10-01 false Standby power system. 234.215 Section 234.215... power system. A standby source of power shall be provided with sufficient capacity to operate the warning system for a reasonable length of time during a period of primary power interruption. The...

  18. 49 CFR 234.269 - Cut-out circuits.

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ... 49 Transportation 4 2014-10-01 2014-10-01 false Cut-out circuits. 234.269 Section 234.269... circuits. Each cut-out circuit shall be tested at least once every three months to determine that the circuit functions as intended. For purposes of this section, a cut-out circuit is any circuit which...

  19. 49 CFR 234.269 - Cut-out circuits.

    Code of Federal Regulations, 2012 CFR

    2012-10-01

    ... 49 Transportation 4 2012-10-01 2012-10-01 false Cut-out circuits. 234.269 Section 234.269... circuits. Each cut-out circuit shall be tested at least once every three months to determine that the circuit functions as intended. For purposes of this section, a cut-out circuit is any circuit which...

  20. 49 CFR 234.269 - Cut-out circuits.

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ... 49 Transportation 4 2013-10-01 2013-10-01 false Cut-out circuits. 234.269 Section 234.269... circuits. Each cut-out circuit shall be tested at least once every three months to determine that the circuit functions as intended. For purposes of this section, a cut-out circuit is any circuit which...

  1. 27 CFR 31.234 - Liability for special (occupational) tax.

    Code of Federal Regulations, 2012 CFR

    2012-04-01

    ... 27 Alcohol, Tobacco Products and Firearms 1 2012-04-01 2012-04-01 false Liability for special (occupational) tax. 31.234 Section 31.234 Alcohol, Tobacco Products and Firearms ALCOHOL AND TOBACCO TAX AND... special (occupational) tax in accordance with the laws and regulations in effect at that time. The tax...

  2. 27 CFR 31.234 - Liability for special (occupational) tax.

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ... 27 Alcohol, Tobacco Products and Firearms 1 2011-04-01 2011-04-01 false Liability for special (occupational) tax. 31.234 Section 31.234 Alcohol, Tobacco Products and Firearms ALCOHOL AND TOBACCO TAX AND... special (occupational) tax in accordance with the laws and regulations in effect at that time. The tax...

  3. 48 CFR 234.203 - Solicitation provisions and contract clause.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... ACQUISITION REGULATIONS SYSTEM, DEPARTMENT OF DEFENSE SPECIAL CATEGORIES OF CONTRACTING MAJOR SYSTEM ACQUISITION Earned Value Management System 234.203 Solicitation provisions and contract clause. For cost or... Management System, instead of the provisions at FAR 52.234-2, Notice of Earned Value Management System—Pre...

  4. 50 CFR 648.234 - Gear restrictions. [Reserved

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... 50 Wildlife and Fisheries 8 2010-10-01 2010-10-01 false Gear restrictions. 648.234 Section 648.234 Wildlife and Fisheries FISHERY CONSERVATION AND MANAGEMENT, NATIONAL OCEANIC AND ATMOSPHERIC ADMINISTRATION, DEPARTMENT OF COMMERCE FISHERIES OF THE NORTHEASTERN UNITED STATES Management Measures for the Spiny Dogfish...

  5. 49 CFR 195.234 - Welds: Nondestructive testing.

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ... 49 Transportation 3 2013-10-01 2013-10-01 false Welds: Nondestructive testing. 195.234 Section 195... HAZARDOUS LIQUIDS BY PIPELINE Construction § 195.234 Welds: Nondestructive testing. (a) A weld may be... weld. (b) Any nondestructive testing of welds must be performed— (1) In accordance with a written set...

  6. 49 CFR 234.217 - Flashing light units.

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ... 49 Transportation 4 2014-10-01 2014-10-01 false Flashing light units. 234.217 Section 234.217... light units. (a) Each flashing light unit shall be properly positioned and aligned and shall be visible to a highway user approaching the crossing. (b) Each flashing light unit shall be maintained...

  7. 49 CFR 234.217 - Flashing light units.

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ... 49 Transportation 4 2013-10-01 2013-10-01 false Flashing light units. 234.217 Section 234.217... light units. (a) Each flashing light unit shall be properly positioned and aligned and shall be visible to a highway user approaching the crossing. (b) Each flashing light unit shall be maintained...

  8. 49 CFR 234.217 - Flashing light units.

    Code of Federal Regulations, 2012 CFR

    2012-10-01

    ... 49 Transportation 4 2012-10-01 2012-10-01 false Flashing light units. 234.217 Section 234.217... light units. (a) Each flashing light unit shall be properly positioned and aligned and shall be visible to a highway user approaching the crossing. (b) Each flashing light unit shall be maintained...

  9. 30 CFR 285.233-285.234 - [Reserved

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 30 Mineral Resources 2 2010-07-01 2010-07-01 false 285.233-285.234 Section 285.233-285.234 Mineral Resources MINERALS MANAGEMENT SERVICE, DEPARTMENT OF THE INTERIOR OFFSHORE RENEWABLE ENERGY ALTERNATE USES OF EXISTING FACILITIES ON THE OUTER CONTINENTAL SHELF Issuance of OCS Renewable Energy Leases...

  10. 7 CFR 23.4 - State Rural Development Advisory Council.

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ... administrative officer on all matters pertaining to the authorized programs. (b) The Chairman of the State Rural... 7 Agriculture 1 2010-01-01 2010-01-01 false State Rural Development Advisory Council. 23.4 Section 23.4 Agriculture Office of the Secretary of Agriculture STATE AND REGIONAL ANNUAL PLANS OF WORK...

  11. 46 CFR 169.234 - Integral fuel oil tank examinations.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... 46 Shipping 7 2010-10-01 2010-10-01 false Integral fuel oil tank examinations. 169.234 Section 169... VESSELS Inspection and Certification Drydocking Or Hauling Out § 169.234 Integral fuel oil tank examinations. (a) Each fuel oil tank with at least one side integral to the vessel's hull and located within...

  12. 49 CFR 234.235 - Insulated rail joints.

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ... 49 Transportation 4 2013-10-01 2013-10-01 false Insulated rail joints. 234.235 Section 234.235 Transportation Other Regulations Relating to Transportation (Continued) FEDERAL RAILROAD ADMINISTRATION... Insulated rail joints. Each insulated rail joint used to separate train detection circuits of a...

  13. 32 CFR 234.18 - Enforcement of parking regulations.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... 32 National Defense 2 2011-07-01 2011-07-01 false Enforcement of parking regulations. 234.18... (CONTINUED) MISCELLANEOUS CONDUCT ON THE PENTAGON RESERVATION § 234.18 Enforcement of parking regulations. Parking regulations for the Pentagon Reservation shall be enforced in accordance with the Pentagon...

  14. 32 CFR 234.18 - Enforcement of parking regulations.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 32 National Defense 2 2010-07-01 2010-07-01 false Enforcement of parking regulations. 234.18... (CONTINUED) MISCELLANEOUS CONDUCT ON THE PENTAGON RESERVATION § 234.18 Enforcement of parking regulations. Parking regulations for the Pentagon Reservation shall be enforced in accordance with the Pentagon...

  15. 49 CFR 234.211 - Security of warning system apparatus.

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ... 49 Transportation 4 2011-10-01 2011-10-01 false Security of warning system apparatus. 234.211... Maintenance, Inspection, and Testing Maintenance Standards § 234.211 Security of warning system apparatus. Highway-rail grade crossing warning system apparatus shall be secured against unauthorized entry....

  16. 49 CFR 234.211 - Security of warning system apparatus.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... 49 Transportation 4 2010-10-01 2010-10-01 false Security of warning system apparatus. 234.211... Maintenance, Inspection, and Testing Maintenance Standards § 234.211 Security of warning system apparatus. Highway-rail grade crossing warning system apparatus shall be secured against unauthorized entry....

  17. 24 CFR 234.66 - Free assumability; exceptions.

    Code of Federal Regulations, 2014 CFR

    2014-04-01

    ... 24 Housing and Urban Development 2 2014-04-01 2014-04-01 false Free assumability; exceptions. 234... CONDOMINIUM OWNERSHIP MORTGAGE INSURANCE Eligibility Requirements-Individually Owned Units § 234.66 Free assumability; exceptions. For purposes of HUD's policy of free assumability with no restrictions, as provided...

  18. 24 CFR 234.66 - Free assumability; exceptions.

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ... 24 Housing and Urban Development 2 2011-04-01 2011-04-01 false Free assumability; exceptions. 234... CONDOMINIUM OWNERSHIP MORTGAGE INSURANCE Eligibility Requirements-Individually Owned Units § 234.66 Free assumability; exceptions. For purposes of HUD's policy of free assumability with no restrictions, as provided...

  19. 24 CFR 234.66 - Free assumability; exceptions.

    Code of Federal Regulations, 2012 CFR

    2012-04-01

    ... 24 Housing and Urban Development 2 2012-04-01 2012-04-01 false Free assumability; exceptions. 234... CONDOMINIUM OWNERSHIP MORTGAGE INSURANCE Eligibility Requirements-Individually Owned Units § 234.66 Free assumability; exceptions. For purposes of HUD's policy of free assumability with no restrictions, as provided...

  20. 24 CFR 234.66 - Free assumability; exceptions.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ... 24 Housing and Urban Development 2 2010-04-01 2010-04-01 false Free assumability; exceptions. 234... CONDOMINIUM OWNERSHIP MORTGAGE INSURANCE Eligibility Requirements-Individually Owned Units § 234.66 Free assumability; exceptions. For purposes of HUD's policy of free assumability with no restrictions, as provided...

  1. 24 CFR 234.66 - Free assumability; exceptions.

    Code of Federal Regulations, 2013 CFR

    2013-04-01

    ... 24 Housing and Urban Development 2 2013-04-01 2013-04-01 false Free assumability; exceptions. 234... CONDOMINIUM OWNERSHIP MORTGAGE INSURANCE Eligibility Requirements-Individually Owned Units § 234.66 Free assumability; exceptions. For purposes of HUD's policy of free assumability with no restrictions, as provided...

  2. 14 CFR 234.6 - Baggage-handling statistics.

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ... 14 Aeronautics and Space 4 2010-01-01 2010-01-01 false Baggage-handling statistics. 234.6 Section 234.6 Aeronautics and Space OFFICE OF THE SECRETARY, DEPARTMENT OF TRANSPORTATION (AVIATION... statistics. Each reporting carrier shall report monthly to the Department on a domestic system...

  3. 14 CFR 234.6 - Baggage-handling statistics.

    Code of Federal Regulations, 2012 CFR

    2012-01-01

    ... 14 Aeronautics and Space 4 2012-01-01 2012-01-01 false Baggage-handling statistics. 234.6 Section 234.6 Aeronautics and Space OFFICE OF THE SECRETARY, DEPARTMENT OF TRANSPORTATION (AVIATION... statistics. Each reporting carrier shall report monthly to the Department on a domestic system...

  4. 14 CFR 234.6 - Baggage-handling statistics.

    Code of Federal Regulations, 2013 CFR

    2013-01-01

    ... 14 Aeronautics and Space 4 2013-01-01 2013-01-01 false Baggage-handling statistics. 234.6 Section 234.6 Aeronautics and Space OFFICE OF THE SECRETARY, DEPARTMENT OF TRANSPORTATION (AVIATION... statistics. Each reporting carrier shall report monthly to the Department on a domestic system...

  5. 14 CFR 234.6 - Baggage-handling statistics.

    Code of Federal Regulations, 2011 CFR

    2011-01-01

    ... 14 Aeronautics and Space 4 2011-01-01 2011-01-01 false Baggage-handling statistics. 234.6 Section 234.6 Aeronautics and Space OFFICE OF THE SECRETARY, DEPARTMENT OF TRANSPORTATION (AVIATION... statistics. Each reporting carrier shall report monthly to the Department on a domestic system...

  6. 14 CFR 234.6 - Baggage-handling statistics.

    Code of Federal Regulations, 2014 CFR

    2014-01-01

    ... 14 Aeronautics and Space 4 2014-01-01 2014-01-01 false Baggage-handling statistics. 234.6 Section 234.6 Aeronautics and Space OFFICE OF THE SECRETARY, DEPARTMENT OF TRANSPORTATION (AVIATION... statistics. Each reporting carrier shall report monthly to the Department on a domestic system...

  7. 27 CFR 31.234 - Liability for special (occupational) tax.

    Code of Federal Regulations, 2014 CFR

    2014-04-01

    ... 27 Alcohol, Tobacco Products and Firearms 1 2014-04-01 2014-04-01 false Liability for special (occupational) tax. 31.234 Section 31.234 Alcohol, Tobacco Products and Firearms ALCOHOL AND TOBACCO TAX AND TRADE BUREAU, DEPARTMENT OF THE TREASURY ALCOHOL ALCOHOL BEVERAGE DEALERS Miscellaneous §...

  8. 42 CFR 455.234 - Awarding of a contract.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... 42 Public Health 4 2010-10-01 2010-10-01 false Awarding of a contract. 455.234 Section 455.234 Public Health CENTERS FOR MEDICARE & MEDICAID SERVICES, DEPARTMENT OF HEALTH AND HUMAN SERVICES... applicable laws and regulations. These competitive procedures and requirements for awarding...

  9. 42 CFR 455.234 - Awarding of a contract.

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ... 42 Public Health 4 2014-10-01 2014-10-01 false Awarding of a contract. 455.234 Section 455.234 Public Health CENTERS FOR MEDICARE & MEDICAID SERVICES, DEPARTMENT OF HEALTH AND HUMAN SERVICES... applicable laws and regulations. These competitive procedures and requirements for awarding...

  10. 12 CFR 23.4 - Investment in personal property.

    Code of Federal Regulations, 2013 CFR

    2013-01-01

    ... 12 Banks and Banking 1 2013-01-01 2013-01-01 false Investment in personal property. 23.4 Section... Provisions § 23.4 Investment in personal property. (a) General rule. A national bank may acquire specific... business or for entry into the leasing business; and (2) The bank's aggregate investment in property held...

  11. 12 CFR 23.4 - Investment in personal property.

    Code of Federal Regulations, 2012 CFR

    2012-01-01

    ... 12 Banks and Banking 1 2012-01-01 2012-01-01 false Investment in personal property. 23.4 Section... Provisions § 23.4 Investment in personal property. (a) General rule. A national bank may acquire specific... business or for entry into the leasing business; and (2) The bank's aggregate investment in property held...

  12. 12 CFR 23.4 - Investment in personal property.

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ... 12 Banks and Banking 1 2010-01-01 2010-01-01 false Investment in personal property. 23.4 Section... Provisions § 23.4 Investment in personal property. (a) General rule. A national bank may acquire specific... business or for entry into the leasing business; and (2) The bank's aggregate investment in property held...

  13. 12 CFR 23.4 - Investment in personal property.

    Code of Federal Regulations, 2014 CFR

    2014-01-01

    ... 12 Banks and Banking 1 2014-01-01 2014-01-01 false Investment in personal property. 23.4 Section... Provisions § 23.4 Investment in personal property. (a) General rule. A national bank may acquire specific... business or for entry into the leasing business; and (2) The bank's aggregate investment in property held...

  14. 48 CFR 252.234-7002 - Earned Value Management System.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... 48 Federal Acquisition Regulations System 3 2010-10-01 2010-10-01 false Earned Value Management... of Provisions And Clauses 252.234-7002 Earned Value Management System. As prescribed in 234.203(2), use the following clause: Earned Value Management System (APR 2008) (a) In the performance of...

  15. 40 CFR 170.234 - Safe operation of equipment.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 40 Protection of Environment 23 2010-07-01 2010-07-01 false Safe operation of equipment. 170.234 Section 170.234 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) PESTICIDE PROGRAMS..., cleans, or adjusts such equipment is informed: (1) That such equipment may be contaminated with...

  16. 42 CFR 456.234 - Subsequent continued stay review dates.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... 42 Public Health 4 2010-10-01 2010-10-01 false Subsequent continued stay review dates. 456.234 Section 456.234 Public Health CENTERS FOR MEDICARE & MEDICAID SERVICES, DEPARTMENT OF HEALTH AND HUMAN SERVICES (CONTINUED) MEDICAL ASSISTANCE PROGRAMS UTILIZATION CONTROL Utilization Control: Mental...

  17. 49 CFR 234.211 - Security of warning system apparatus.

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ... 49 Transportation 4 2013-10-01 2013-10-01 false Security of warning system apparatus. 234.211 Section 234.211 Transportation Other Regulations Relating to Transportation (Continued) FEDERAL RAILROAD....211 Security of warning system apparatus. Highway-rail grade crossing warning system apparatus...

  18. 49 CFR 234.225 - Activation of warning system.

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ... 49 Transportation 4 2014-10-01 2014-10-01 false Activation of warning system. 234.225 Section 234....225 Activation of warning system. A highway-rail grade crossing warning system shall be maintained to activate in accordance with the design of the warning system, but in no event shall it provide less than...

  19. 49 CFR 234.225 - Activation of warning system.

    Code of Federal Regulations, 2012 CFR

    2012-10-01

    ... 49 Transportation 4 2012-10-01 2012-10-01 false Activation of warning system. 234.225 Section 234....225 Activation of warning system. A highway-rail grade crossing warning system shall be maintained to activate in accordance with the design of the warning system, but in no event shall it provide less than...

  20. 49 CFR 234.225 - Activation of warning system.

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ... 49 Transportation 4 2013-10-01 2013-10-01 false Activation of warning system. 234.225 Section 234....225 Activation of warning system. A highway-rail grade crossing warning system shall be maintained to activate in accordance with the design of the warning system, but in no event shall it provide less than...

  1. 49 CFR 234.211 - Security of warning system apparatus.

    Code of Federal Regulations, 2012 CFR

    2012-10-01

    ... 49 Transportation 4 2012-10-01 2012-10-01 false Security of warning system apparatus. 234.211 Section 234.211 Transportation Other Regulations Relating to Transportation (Continued) FEDERAL RAILROAD....211 Security of warning system apparatus. Highway-rail grade crossing warning system apparatus...

  2. 49 CFR 234.211 - Security of warning system apparatus.

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ... 49 Transportation 4 2014-10-01 2014-10-01 false Security of warning system apparatus. 234.211 Section 234.211 Transportation Other Regulations Relating to Transportation (Continued) FEDERAL RAILROAD....211 Security of warning system apparatus. Highway-rail grade crossing warning system apparatus...

  3. 49 CFR 234.227 - Train detection apparatus.

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ... 49 Transportation 4 2014-10-01 2014-10-01 false Train detection apparatus. 234.227 Section 234.227... detection apparatus. (a) Train detection apparatus shall be maintained to detect a train or railcar in any part of a train detection circuit, in accordance with the design of the warning system. (b) If the...

  4. 49 CFR 234.227 - Train detection apparatus.

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ... 49 Transportation 4 2013-10-01 2013-10-01 false Train detection apparatus. 234.227 Section 234.227... detection apparatus. (a) Train detection apparatus shall be maintained to detect a train or railcar in any part of a train detection circuit, in accordance with the design of the warning system. (b) If the...

  5. 49 CFR 234.227 - Train detection apparatus.

    Code of Federal Regulations, 2012 CFR

    2012-10-01

    ... 49 Transportation 4 2012-10-01 2012-10-01 false Train detection apparatus. 234.227 Section 234.227... detection apparatus. (a) Train detection apparatus shall be maintained to detect a train or railcar in any part of a train detection circuit, in accordance with the design of the warning system. (b) If the...

  6. 49 CFR 234.273 - Results of inspections and tests.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... 49 Transportation 4 2010-10-01 2010-10-01 false Results of inspections and tests. 234.273 Section... Maintenance, Inspection, and Testing Inspections and Tests § 234.273 Results of inspections and tests. (a) Results of inspections and tests made in compliance with this part shall be recorded on forms provided by...

  7. 24 CFR 234.285 - Waived title objections.

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ... 24 Housing and Urban Development 2 2011-04-01 2011-04-01 false Waived title objections. 234.285 Section 234.285 Housing and Urban Development Regulations Relating to Housing and Urban Development (Continued) OFFICE OF ASSISTANT SECRETARY FOR HOUSING-FEDERAL HOUSING COMMISSIONER, DEPARTMENT OF HOUSING AND URBAN DEVELOPMENT MORTGAGE AND...

  8. 24 CFR 234.285 - Waived title objections.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ... 24 Housing and Urban Development 2 2010-04-01 2010-04-01 false Waived title objections. 234.285 Section 234.285 Housing and Urban Development Regulations Relating to Housing and Urban Development (Continued) OFFICE OF ASSISTANT SECRETARY FOR HOUSING-FEDERAL HOUSING COMMISSIONER, DEPARTMENT OF HOUSING AND URBAN DEVELOPMENT MORTGAGE AND...

  9. 24 CFR 234.285 - Waived title objections.

    Code of Federal Regulations, 2014 CFR

    2014-04-01

    ... 24 Housing and Urban Development 2 2014-04-01 2014-04-01 false Waived title objections. 234.285 Section 234.285 Housing and Urban Development Regulations Relating to Housing and Urban Development (Continued) OFFICE OF ASSISTANT SECRETARY FOR HOUSING-FEDERAL HOUSING COMMISSIONER, DEPARTMENT OF HOUSING AND URBAN DEVELOPMENT MORTGAGE AND...

  10. 24 CFR 234.285 - Waived title objections.

    Code of Federal Regulations, 2013 CFR

    2013-04-01

    ... 24 Housing and Urban Development 2 2013-04-01 2013-04-01 false Waived title objections. 234.285 Section 234.285 Housing and Urban Development Regulations Relating to Housing and Urban Development (Continued) OFFICE OF ASSISTANT SECRETARY FOR HOUSING-FEDERAL HOUSING COMMISSIONER, DEPARTMENT OF HOUSING AND URBAN DEVELOPMENT MORTGAGE AND...

  11. 49 CFR 234.201 - Location of plans.

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ... 49 Transportation 4 2014-10-01 2014-10-01 false Location of plans. 234.201 Section 234.201..., DEPARTMENT OF TRANSPORTATION GRADE CROSSING SAFETY, INCLUDING SIGNAL SYSTEMS, STATE ACTION PLANS, AND... of plans. Plans required for proper maintenance and testing shall be kept at each highway-rail grade...

  12. 49 CFR 234.201 - Location of plans.

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ... 49 Transportation 4 2013-10-01 2013-10-01 false Location of plans. 234.201 Section 234.201..., DEPARTMENT OF TRANSPORTATION GRADE CROSSING SAFETY, INCLUDING SIGNAL SYSTEMS, STATE ACTION PLANS, AND... of plans. Plans required for proper maintenance and testing shall be kept at each highway-rail grade...

  13. 49 CFR 234.255 - Gate arm and gate mechanism.

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ... 49 Transportation 4 2014-10-01 2014-10-01 false Gate arm and gate mechanism. 234.255 Section 234....255 Gate arm and gate mechanism. (a) Each gate arm and gate mechanism shall be inspected at least once each month. (b) Gate arm movement shall be observed for proper operation at least once each month....

  14. 49 CFR 234.255 - Gate arm and gate mechanism.

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ... 49 Transportation 4 2013-10-01 2013-10-01 false Gate arm and gate mechanism. 234.255 Section 234....255 Gate arm and gate mechanism. (a) Each gate arm and gate mechanism shall be inspected at least once each month. (b) Gate arm movement shall be observed for proper operation at least once each month....

  15. 49 CFR 234.255 - Gate arm and gate mechanism.

    Code of Federal Regulations, 2012 CFR

    2012-10-01

    ... 49 Transportation 4 2012-10-01 2012-10-01 false Gate arm and gate mechanism. 234.255 Section 234....255 Gate arm and gate mechanism. (a) Each gate arm and gate mechanism shall be inspected at least once each month. (b) Gate arm movement shall be observed for proper operation at least once each month....

  16. 40 CFR 170.234 - Safe operation of equipment.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... Section 170.234 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) PESTICIDE PROGRAMS WORKER PROTECTION STANDARD Standard for Pesticide Handlers § 170.234 Safe operation of equipment. (a) The..., or applying pesticides, the handler is instructed in the safe operation of such equipment,...

  17. 40 CFR 170.234 - Safe operation of equipment.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... Section 170.234 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) PESTICIDE PROGRAMS WORKER PROTECTION STANDARD Standard for Pesticide Handlers § 170.234 Safe operation of equipment. (a) The..., or applying pesticides, the handler is instructed in the safe operation of such equipment,...

  18. 40 CFR 170.234 - Safe operation of equipment.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... Section 170.234 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) PESTICIDE PROGRAMS WORKER PROTECTION STANDARD Standard for Pesticide Handlers § 170.234 Safe operation of equipment. (a) The..., or applying pesticides, the handler is instructed in the safe operation of such equipment,...

  19. 40 CFR 170.234 - Safe operation of equipment.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... Section 170.234 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) PESTICIDE PROGRAMS WORKER PROTECTION STANDARD Standard for Pesticide Handlers § 170.234 Safe operation of equipment. (a) The..., or applying pesticides, the handler is instructed in the safe operation of such equipment,...

  20. 49 CFR 234.311 - ENS sign placement and maintenance.

    Code of Federal Regulations, 2012 CFR

    2012-10-01

    ... 49 Transportation 4 2012-10-01 2012-10-01 false ENS sign placement and maintenance. 234.311... Conditions at Highway-Rail and Pathway Grade Crossings § 234.311 ENS sign placement and maintenance. (a) Number of signs at highway-rail or pathway grade crossing. (1) In general. The maintaining railroad, or...

  1. 32 CFR 234.5 - Compliance with official signs.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... 32 National Defense 2 2014-07-01 2014-07-01 false Compliance with official signs. 234.5 Section...) MISCELLANEOUS CONDUCT ON THE PENTAGON RESERVATION § 234.5 Compliance with official signs. Persons on the Pentagon Reservation shall at all times comply with official signs of a prohibitory, regulatory, or...

  2. 32 CFR 234.5 - Compliance with official signs.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 32 National Defense 2 2010-07-01 2010-07-01 false Compliance with official signs. 234.5 Section...) MISCELLANEOUS CONDUCT ON THE PENTAGON RESERVATION § 234.5 Compliance with official signs. Persons on the Pentagon Reservation shall at all times comply with official signs of a prohibitory, regulatory, or...

  3. 49 CFR 234.311 - ENS sign placement and maintenance.

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ... 49 Transportation 4 2013-10-01 2013-10-01 false ENS sign placement and maintenance. 234.311... Conditions at Highway-Rail and Pathway Grade Crossings § 234.311 ENS sign placement and maintenance. (a) Number of signs at highway-rail or pathway grade crossing. (1) In general. The maintaining railroad, or...

  4. 32 CFR 234.5 - Compliance with official signs.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... 32 National Defense 2 2012-07-01 2012-07-01 false Compliance with official signs. 234.5 Section...) MISCELLANEOUS CONDUCT ON THE PENTAGON RESERVATION § 234.5 Compliance with official signs. Persons on the Pentagon Reservation shall at all times comply with official signs of a prohibitory, regulatory, or...

  5. 32 CFR 234.5 - Compliance with official signs.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... 32 National Defense 2 2011-07-01 2011-07-01 false Compliance with official signs. 234.5 Section...) MISCELLANEOUS CONDUCT ON THE PENTAGON RESERVATION § 234.5 Compliance with official signs. Persons on the Pentagon Reservation shall at all times comply with official signs of a prohibitory, regulatory, or...

  6. 49 CFR 234.311 - ENS sign placement and maintenance.

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ... 49 Transportation 4 2014-10-01 2014-10-01 false ENS sign placement and maintenance. 234.311... Conditions at Highway-Rail and Pathway Grade Crossings § 234.311 ENS sign placement and maintenance. (a) Number of signs at highway-rail or pathway grade crossing. (1) In general. The maintaining railroad, or...

  7. 32 CFR 234.5 - Compliance with official signs.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... 32 National Defense 2 2013-07-01 2013-07-01 false Compliance with official signs. 234.5 Section...) MISCELLANEOUS CONDUCT ON THE PENTAGON RESERVATION § 234.5 Compliance with official signs. Persons on the Pentagon Reservation shall at all times comply with official signs of a prohibitory, regulatory, or...

  8. 37 CFR 2.34 - Bases for filing.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... 37 Patents, Trademarks, and Copyrights 1 2011-07-01 2011-07-01 false Bases for filing. 2.34... COMMERCE RULES OF PRACTICE IN TRADEMARK CASES The Written Application § 2.34 Bases for filing. (a) The application must include one or more of the following five filing bases: (1) Use in commerce under section...

  9. 42 CFR 456.234 - Subsequent continued stay review dates.

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ... 42 Public Health 4 2011-10-01 2011-10-01 false Subsequent continued stay review dates. 456.234 Section 456.234 Public Health CENTERS FOR MEDICARE & MEDICAID SERVICES, DEPARTMENT OF HEALTH AND HUMAN SERVICES (CONTINUED) MEDICAL ASSISTANCE PROGRAMS UTILIZATION CONTROL Utilization Control: Mental Hospitals...

  10. 49 CFR 234.235 - Insulated rail joints.

    Code of Federal Regulations, 2012 CFR

    2012-10-01

    ... 49 Transportation 4 2012-10-01 2012-10-01 false Insulated rail joints. 234.235 Section 234.235 Transportation Other Regulations Relating to Transportation (Continued) FEDERAL RAILROAD ADMINISTRATION... Insulated rail joints. Each insulated rail joint used to separate train detection circuits of a highway-rail...

  11. 49 CFR 234.235 - Insulated rail joints.

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ... 49 Transportation 4 2014-10-01 2014-10-01 false Insulated rail joints. 234.235 Section 234.235 Transportation Other Regulations Relating to Transportation (Continued) FEDERAL RAILROAD ADMINISTRATION... Insulated rail joints. Each insulated rail joint used to separate train detection circuits of a highway-rail...

  12. 49 CFR 234.265 - Timing relays and timing devices.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... 49 Transportation 4 2010-10-01 2010-10-01 false Timing relays and timing devices. 234.265 Section... Maintenance, Inspection, and Testing Inspections and Tests § 234.265 Timing relays and timing devices. Each timing relay and timing device shall be tested at least once every twelve months. The timing shall...

  13. 49 CFR 234.265 - Timing relays and timing devices.

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ... 49 Transportation 4 2011-10-01 2011-10-01 false Timing relays and timing devices. 234.265 Section... Maintenance, Inspection, and Testing Inspections and Tests § 234.265 Timing relays and timing devices. Each timing relay and timing device shall be tested at least once every twelve months. The timing shall...

  14. 30 CFR 585.233-585.234 - [Reserved

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... 30 Mineral Resources 2 2014-07-01 2014-07-01 false 585.233-585.234 Section 585.233-585.234 Mineral Resources BUREAU OF OCEAN ENERGY MANAGEMENT, DEPARTMENT OF THE INTERIOR OFFSHORE RENEWABLE ENERGY AND ALTERNATE USES OF EXISTING FACILITIES ON THE OUTER CONTINENTAL SHELF Issuance of OCS Renewable Energy...

  15. 30 CFR 585.233-585.234 - [Reserved

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... 30 Mineral Resources 2 2013-07-01 2013-07-01 false 585.233-585.234 Section 585.233-585.234 Mineral Resources BUREAU OF OCEAN ENERGY MANAGEMENT, DEPARTMENT OF THE INTERIOR OFFSHORE RENEWABLE ENERGY AND ALTERNATE USES OF EXISTING FACILITIES ON THE OUTER CONTINENTAL SHELF Issuance of OCS Renewable Energy...

  16. 30 CFR 585.233-585.234 - [Reserved

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... 30 Mineral Resources 2 2012-07-01 2012-07-01 false 585.233-585.234 Section 585.233-585.234 Mineral Resources BUREAU OF OCEAN ENERGY MANAGEMENT, DEPARTMENT OF THE INTERIOR OFFSHORE RENEWABLE ENERGY AND ALTERNATE USES OF EXISTING FACILITIES ON THE OUTER CONTINENTAL SHELF Issuance of OCS Renewable Energy...

  17. 46 CFR 169.234 - Integral fuel oil tank examinations.

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ... 46 Shipping 7 2013-10-01 2013-10-01 false Integral fuel oil tank examinations. 169.234 Section 169... VESSELS Inspection and Certification Drydocking Or Hauling Out § 169.234 Integral fuel oil tank examinations. (a) Each fuel oil tank with at least one side integral to the vessel's hull and located...

  18. 46 CFR 169.234 - Integral fuel oil tank examinations.

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ... 46 Shipping 7 2011-10-01 2011-10-01 false Integral fuel oil tank examinations. 169.234 Section 169... VESSELS Inspection and Certification Drydocking Or Hauling Out § 169.234 Integral fuel oil tank examinations. (a) Each fuel oil tank with at least one side integral to the vessel's hull and located...

  19. 46 CFR 169.234 - Integral fuel oil tank examinations.

    Code of Federal Regulations, 2012 CFR

    2012-10-01

    ... 46 Shipping 7 2012-10-01 2012-10-01 false Integral fuel oil tank examinations. 169.234 Section 169... VESSELS Inspection and Certification Drydocking Or Hauling Out § 169.234 Integral fuel oil tank examinations. (a) Each fuel oil tank with at least one side integral to the vessel's hull and located...

  20. 46 CFR 169.234 - Integral fuel oil tank examinations.

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ... 46 Shipping 7 2014-10-01 2014-10-01 false Integral fuel oil tank examinations. 169.234 Section 169... VESSELS Inspection and Certification Drydocking Or Hauling Out § 169.234 Integral fuel oil tank examinations. (a) Each fuel oil tank with at least one side integral to the vessel's hull and located...

  1. Protactinium neutron-induced fission up to 200 MeV

    NASA Astrophysics Data System (ADS)

    Maslov, V.

    2010-03-01

    The theoretical evaluation of 230-233Pa(n,F) cross sections is based on direct data, 230-234Pa fission probabilities and ratios of fission probabilities in first-chance and emissive fission domains, surrogate for neutroninduced fission. First chance fission cross sections trends of Pa are based on consistent description of 232Th(n,F), 232Th(n,2n) and 238U(n,F), 238U(n,xn) data, supported by the ratio surrogate data by Burke et al., 2006, for the 237U(n,F) reaction. Ratio surrogate data on fission probabilities of 232Th(6 Li,4 He)234Pa and 232 Th(6 Li,d)236U by Nayak et al., 2008, support the predicted 233Pa(n, F) cross section at En=11.5-16.5 MeV. The predicted trends of 230-232Pa(n, F) cross section up to En=20 MeV, are consistent with fissilities of Pa nuclides, extracted by 232Th(p,F) (Isaev et al., 2008) and 232Th(p,3n) (Morgenstern et al., 2008) data analysis. The excitation energy and nucleon composition dependence of the transition from asymmetric to symmetric scission for fission observables of Pa nuclei is defined by analysis of p-induced fission of 232Th at Ep=1-200 MeV. Predominantly symmetric fission in 232Th(p,F) at En( p)=200 MeV as revealed by experimental branching ratios (Dujvestijn et al., 1999) is reproduced. Steep transition from asymmetric to symmetric fission with increase of nucleon incident energy is due to fission of neutron-deficient Pa (A≤229) nuclei. A structure of the potential energy surface (a drop of f f symmetric and asymmetric fission barriers difierence (EfSYM - EfASYM) from ~3.5 MeV to ~1 MeV) of N-deficient Pa nuclides (A≤226) and available phase space at outer fission saddles, are shown to be responsible for the sharp increase with En( p) of the symmetric fission component contribution for 232Th(p,F) and 230-233 Pa(n, F) reactions. That is a strong evidence of emissive fission nature of moderately excited Pa nuclides, reliably quantified only up to En( p)~20(30) MeV. Predicted fission cross section of 232Pa(n,F) coincides

  2. Genetic snapshots of the Rhizobium species NGR234 genome

    PubMed Central

    Viprey, Virginie; Rosenthal, André; Broughton, William J; Perret, Xavier

    2000-01-01

    Background: In nitrate-poor soils, many leguminous plants form nitrogen-fixing symbioses with members of the bacterial family Rhizobiaceae. We selected Rhizobium sp. NGR234 for its exceptionally broad host range, which includes more than I 12 genera of legumes. Unlike the genome of Bradyrhizobium japonicum, which is composed of a single 8.7 Mb chromosome, that of NGR234 is partitioned into three replicons: a chromosome of about 3.5 Mb, a megaplasmid of more than 2 Mb (pNGR234b) and pNGR234a, a 536,165 bp plasmid that carries most of the genes required for symbioses with legumes. Symbiotic loci represent only a small portion of all the genes coded by rhizobial genomes, however. To rapidly characterize the two largest replicons of NGR234, the genome of strain ANU265 (a derivative strain cured of pNGR234a) was analyzed by shotgun sequencing. Results: Homology searches of public databases with 2,275 random sequences of strain ANU265 resulted in the identification of 1,130 putative protein-coding sequences, of which 922 (41%) could be classified into functional groups. In contrast to the 18% of insertion-like sequences (ISs) found on the symbiotic plasmid pNGR234a, only 2.2% of the shotgun sequences represent known ISs, suggesting that pNGR234a is enriched in such elements. Hybridization data also indicate that the density of known transposable elements is higher in pNGR234b (the megaplasmid) than on the chromosome. Rhizobium-specific intergenic mosaic elements (RIMEs) were found in 35 shotgun sequences, 6 of which carry RIME2 repeats previously thought to be present only in Rhizobium meliloti. As non-overlapping shotgun sequences together represent approximately 10% of ANU265 genome, the chromosome and megaplasmid may carry a total of over 200 RIMEs. Conclusions: 'Skimming' the genome of Rhizobium sp. NGR234 sheds new light on the fine structure and evolution of its replicons, as well as on the integration of symbiotic functions in the genome of a soil bacterium

  3. Elucidating Protactinium Hydrolysis: The Relative Stabilities of PaO2(H2O)(+) and PaO(OH)2(+).

    PubMed

    Dau, Phuong D; Wilson, Richard E; Gibson, John K

    2015-08-03

    It is demonstrated that the gas-phase oxo-exchange of PaO2(+) with water is substantially faster than that of UO2(+), indicating that the Pa-O bonds are more susceptible to activation and formation of the bis-hydroxide intermediate, PaO(OH)2(+). To elucidate the nature of the water adduct of PaO2(+), hydration of PaO2(+) and UO2(+), as well as collision induced dissociation (CID) and ligand-exchange of the water adducts of PaO2(+) and UO2(+), was studied. The results indicate that, in contrast to UO2(H2O)(+), the protactinium oxo bis-hydroxide isomer, PaO(OH)2(+), is produced as a gas-phase species close in energy to the hydrate isomer, PaO2(H2O)(+). CID behavior similar to that of Th(OH)3(+) supports the assignment as PaO(OH)2(+). The gas-phase results are consistent with the spontaneous hydrolysis of PaO2(+) in aqueous solution, this in contrast to later AnO2(+) (An = U, Np, Pu), which forms stable hydrates in both solution and gas phase. In view of the known propensity for Th(IV) to hydrolyze, and previous gas-phase studies of other AnO2(+), it is concluded that the stabilities of oxo-hydroxides relative to oxide hydrates decreases in the order: Th(IV) > Pa(V) > U(V) > Np(V) > Pu(V). This trend suggests increasing covalency and decreasing ionicity of An-O bonds upon proceeding across the actinide series.

  4. VIEW OF ROOSEVELT BASE TAKEN FROM ARCADE (BUILDING 234), FACING ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    VIEW OF ROOSEVELT BASE TAKEN FROM ARCADE (BUILDING 234), FACING EAST LOOKING DOWN PRATT AVENUE TOWARD BUILDING 1 - Roosevelt Base, Bounded by Ocean Boulevard, Pennsylvania Avenue, Richardson Avenue, & Idaho Street, Long Beach, Los Angeles County, CA

  5. VIEW OF BUILDING 234 (ARCADE), NORTH WING FROM THE WEST ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    VIEW OF BUILDING 234 (ARCADE), NORTH WING FROM THE WEST END, FACING SOUTHEAST, LOOKING DOWN ARCADE AND ACROSS COURTYARD - Roosevelt Base, Arcade, West Virginia Street, Long Beach, Los Angeles County, CA

  6. 234. Dennis Hill, Photographer July 1998 VIEW OF BUS STOP, ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    234. Dennis Hill, Photographer July 1998 VIEW OF BUS STOP, UPPER DECK OF YERBA BUENA EAST VIADUCT, FACING WEST. - San Francisco Oakland Bay Bridge, Spanning San Francisco Bay, San Francisco, San Francisco County, CA

  7. 30 CFR 285.233-285.234 - [Reserved

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... OFFSHORE RENEWABLE ENERGY ALTERNATE USES OF EXISTING FACILITIES ON THE OUTER CONTINENTAL SHELF Issuance of OCS Renewable Energy Leases Noncompetitive Lease Award Process §§ 285.233-285.234 Commercial...

  8. Knockdown of Tmem234 in zebrafish results in proteinuria.

    PubMed

    Rodriguez, Patricia Q; Oddsson, Asmundur; Ebarasi, Lwaki; He, Bing; Hultenby, Kjell; Wernerson, Annika; Betsholtz, Christer; Tryggvason, Karl; Patrakka, Jaakko

    2015-12-01

    Podocytes are highly specialized epithelial cells located at the outer aspects of the glomerular capillary tuft and critical components of the kidney filtration barrier. To maintain their unique features, podocytes express a number of proteins that are only sparsely found elsewhere in the body. In this study, we have identified four (Tmem234, Znf185, Lrrc49, and Slfn5) new highly podocyte-enriched proteins. The proteins are strongly expressed by podocytes, while other parts of the kidney show only weak or no expression. Tmem234, Slfn5, and Lrrc49 are located in foot processes, whereas Znf185 is found in both foot and major processes. Expressional studies in developing kidneys show that these proteins are first expressed at the capillary stage glomerulus, the same stage when the formation of major and foot processes begins. We identified zebrafish orthologs for Tmem234 and Znf185 genes and knocked down their expression using morpholino technology. Studies in zebrafish larvae indicate that Tmem234 is essential for the organization and functional integrity of the pronephric glomerulus filtration barrier, as inactivation of Tmem234 expression results in foot process effacement and proteinuria. In summary, we have identified four novel highly podocyte-enriched proteins and show that one of them, Tmem234, is essential for the normal filtration barrier in the zebrafish pronephric glomerulus. Identification of new molecular components of the kidney filtration barrier opens up possibilities to study their role in glomerulus biology and diseases. Copyright © 2015 the American Physiological Society.

  9. Gas-phase chemistry of bare and oxo-ligated protactinium ions: a contribution to a systematic understanding of actinide chemistry.

    PubMed

    Gibson, John K; Haire, Richard G

    2002-11-04

    Gas-phase chemistry of bare and oxo-ligated protactinium ions has been studied for the first time. Comparisons were made with thorium, uranium, and neptunium ion chemistry to further the systematic understanding of 5f elements. The rates of oxidation of Pa(+) and PaO(+) by ethylene oxide compared with those of the homologous uranium ions indicate that the first and second bond dissociation energies, BDE[Pa(+)-O] and BDE[OPa(+)-O], are approximately 800 kJ mol(-1). The relatively facile fluorination of Pa(+) to PaF(4)(+) by SF(6) is consistent with the high stability of the pentavalent oxidation state of Pa. Reactions with ethene, propene, 1-butene, and iso-butene revealed that Pa(+) is a very reactive metal ion. In analogy with U(+) chemistry, ethene was trimerized by Pa(+) to give PaC(6)H(6)(+). Reactions of Pa(+) with larger alkenes resulted in secondary and tertiary products not observed for U(+) or Np(+). The bare protactinium ion is significantly more reactive with organic substrates than are heavier actinide ions. The greatest difference between Pa and heavier actinide congeners was the exceptional dehydrogenation activity of PaO(+) with alkenes; UO(+) and NpO(+) were comparatively inert. The striking reactivity of PaO(+) is attributed to the distinctive electronic structure at the metal center in this oxide, which is considered to reflect the greater availability of the 5f electrons for participation in bonding, either directly or by promotion/hybridization with higher-energy valence orbitals.

  10. Three replicons of Rhizobium sp. Strain NGR234 harbor symbiotic gene sequences.

    PubMed

    Flores, M; Mavingui, P; Girard, L; Perret, X; Broughton, W J; Martínez-Romero, E; Dávila, G; Palacios, R

    1998-11-01

    Rhizobium sp. strain NGR234 contains three replicons: the symbiotic plasmid or pNGR234a, a megaplasmid (pNGR234b), and the chromosome. Symbiotic gene sequences not present in pNGR234a were analyzed by hybridization. DNA sequences homologous to the genes fixLJKNOPQGHIS were found on the chromosome, while sequences homologous to nodPQ and exoBDFLK were found on pNGR234b.

  11. Three Replicons of Rhizobium sp. Strain NGR234 Harbor Symbiotic Gene Sequences

    PubMed Central

    Flores, Margarita; Mavingui, Patrick; Girard, Lourdes; Perret, Xavier; Broughton, William J.; Martínez-Romero, Esperanza; Dávila, Guillermo; Palacios, Rafael

    1998-01-01

    Rhizobium sp. strain NGR234 contains three replicons: the symbiotic plasmid or pNGR234a, a megaplasmid (pNGR234b), and the chromosome. Symbiotic gene sequences not present in pNGR234a were analyzed by hybridization. DNA sequences homologous to the genes fixLJKNOPQGHIS were found on the chromosome, while sequences homologous to nodPQ and exoBDFLK were found on pNGR234b. PMID:9811668

  12. Atomic Mass and Nuclear Binding Energy for At-234 (Astatine)

    NASA Astrophysics Data System (ADS)

    Sukhoruchkin, S. I.; Soroko, Z. N.

    This document is part of the Supplement containing the complete sets of data of Subvolume B `Nuclei with Z = 55 - 100' of Volume 22 `Nuclear Binding Energies and Atomic Masses' of Landolt-Börnstein - Group I `Elementary Particles, Nuclei and Atoms', and additionally including data for nuclei with Z = 101 - 130. It provides atomic mass, mass excess, nuclear binding energy, nucleon separation energies, Q-values, and nucleon residual interaction parameters for atomic nuclei of the isotope At-234 (Astatine, atomic number Z = 85, mass number A = 234).

  13. A method for preparation and purification of 234Th.

    PubMed

    Albinsson, Y; Ekberg, C; Holgersson, S; Jakobsson, A M; Lendgren, A; Skarnemark, G

    2002-05-01

    An improved method to recover 234Th from depleted uranium has been developed. The method is based on solvent extraction and ion-exchange separations. The final thorium fraction has a high specific activity, about 1-3 PBq/mol Th, which makes it well suited for investigations, where a low thorium concentration is essential. The method is comparably fast, with a total processing time of 2 days. Another advantage is that the uranium fraction can be used as a 234Th generator for several years.

  14. Atomic Mass and Nuclear Binding Energy for Ac-234 (Actinium)

    NASA Astrophysics Data System (ADS)

    Sukhoruchkin, S. I.; Soroko, Z. N.

    This document is part of the Supplement containing the complete sets of data of Subvolume B `Nuclei with Z = 55 - 100' of Volume 22 `Nuclear Binding Energies and Atomic Masses' of Landolt-Börnstein - Group I `Elementary Particles, Nuclei and Atoms', and additionally including data for nuclei with Z = 101 - 130. It provides atomic mass, mass excess, nuclear binding energy, nucleon separation energies, Q-values, and nucleon residual interaction parameters for atomic nuclei of the isotope Ac-234 (Actinium, atomic number Z = 89, mass number A = 234).

  15. 32 CFR 234.11 - Alcoholic beverages and controlled substances.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... 32 National Defense 2 2012-07-01 2012-07-01 false Alcoholic beverages and controlled substances... DEFENSE (CONTINUED) MISCELLANEOUS CONDUCT ON THE PENTAGON RESERVATION § 234.11 Alcoholic beverages and controlled substances. (a) Alcoholic beverages. The consumption of alcoholic beverages or the possession of...

  16. 32 CFR 234.11 - Alcoholic beverages and controlled substances.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 32 National Defense 2 2010-07-01 2010-07-01 false Alcoholic beverages and controlled substances... DEFENSE (CONTINUED) MISCELLANEOUS CONDUCT ON THE PENTAGON RESERVATION § 234.11 Alcoholic beverages and controlled substances. (a) Alcoholic beverages. The consumption of alcoholic beverages or the possession of...

  17. 32 CFR 234.11 - Alcoholic beverages and controlled substances.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... 32 National Defense 2 2013-07-01 2013-07-01 false Alcoholic beverages and controlled substances... DEFENSE (CONTINUED) MISCELLANEOUS CONDUCT ON THE PENTAGON RESERVATION § 234.11 Alcoholic beverages and controlled substances. (a) Alcoholic beverages. The consumption of alcoholic beverages or the possession of...

  18. 32 CFR 234.11 - Alcoholic beverages and controlled substances.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... 32 National Defense 2 2011-07-01 2011-07-01 false Alcoholic beverages and controlled substances... DEFENSE (CONTINUED) MISCELLANEOUS CONDUCT ON THE PENTAGON RESERVATION § 234.11 Alcoholic beverages and controlled substances. (a) Alcoholic beverages. The consumption of alcoholic beverages or the possession of...

  19. 32 CFR 234.11 - Alcoholic beverages and controlled substances.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... 32 National Defense 2 2014-07-01 2014-07-01 false Alcoholic beverages and controlled substances... DEFENSE (CONTINUED) MISCELLANEOUS CONDUCT ON THE PENTAGON RESERVATION § 234.11 Alcoholic beverages and controlled substances. (a) Alcoholic beverages. The consumption of alcoholic beverages or the possession of...

  20. 45 CFR 234.120 - Federal financial participation.

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ... assistance payments include: (a) Money payments (titles I, IV-A, X, XIV, and XVI, see § 234.11 of this... payments for home repairs (titles I, IV-A, X, XIV, and XVI, see § 233.20(c) of this chapter); and (h)...

  1. 45 CFR 234.120 - Federal financial participation.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... assistance payments include: (a) Money payments (titles I, IV-A, X, XIV, and XVI, see § 234.11 of this... payments for home repairs (titles I, IV-A, X, XIV, and XVI, see § 233.20(c) of this chapter); and (h)...

  2. 37 CFR 2.34 - Bases for filing.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... COMMERCE RULES OF PRACTICE IN TRADEMARK CASES The Written Application § 2.34 Bases for filing. (a) The application must include one or more of the following five filing bases: (1) Use in commerce under section 1(a... trademark owner's verified statement that the mark is in use in commerce on or in connection with the...

  3. 37 CFR 2.34 - Bases for filing.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... COMMERCE RULES OF PRACTICE IN TRADEMARK CASES The Written Application § 2.34 Bases for filing. (a) The application must include one or more of the following five filing bases: (1) Use in commerce under section 1(a... trademark owner's verified statement that the mark is in use in commerce on or in connection with the...

  4. 49 CFR 384.234 - Driver medical certification recordkeeping.

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ... 49 Transportation 5 2014-10-01 2014-10-01 false Driver medical certification recordkeeping. 384... REGULATIONS STATE COMPLIANCE WITH COMMERCIAL DRIVER'S LICENSE PROGRAM Minimum Standards for Substantial Compliance by States § 384.234 Driver medical certification recordkeeping. The State must meet the...

  5. 49 CFR 384.234 - Driver medical certification recordkeeping.

    Code of Federal Regulations, 2012 CFR

    2012-10-01

    ... 49 Transportation 5 2012-10-01 2012-10-01 false Driver medical certification recordkeeping. 384... REGULATIONS STATE COMPLIANCE WITH COMMERCIAL DRIVER'S LICENSE PROGRAM Minimum Standards for Substantial Compliance by States § 384.234 Driver medical certification recordkeeping. The State must meet the...

  6. 49 CFR 384.234 - Driver medical certification recordkeeping.

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ... 49 Transportation 5 2013-10-01 2013-10-01 false Driver medical certification recordkeeping. 384... REGULATIONS STATE COMPLIANCE WITH COMMERCIAL DRIVER'S LICENSE PROGRAM Minimum Standards for Substantial Compliance by States § 384.234 Driver medical certification recordkeeping. The State must meet the...

  7. 14 CFR 234.11 - Disclosure to consumers.

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ...) ECONOMIC REGULATIONS AIRLINE SERVICE QUALITY PERFORMANCE REPORTS § 234.11 Disclosure to consumers. Link to... public, the carrier shall disclose upon reasonable request the on-time performance code for any flight... public, the carrier shall disclose upon reasonable request the on-time performance code for any...

  8. 48 CFR 52.234-4 - Earned Value Management System.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... 48 Federal Acquisition Regulations System 2 2010-10-01 2010-10-01 false Earned Value Management....234-4 Earned Value Management System. As prescribed in 34.203(c), insert the following clause: Earned Value Management System (JUL 2006) (a) The Contractor shall use an earned value management system...

  9. 16 CFR 23.4 - Misrepresentation as to gold content.

    Code of Federal Regulations, 2011 CFR

    2011-01-01

    ... JEWELRY, PRECIOUS METALS, AND PEWTER INDUSTRIES § 23.4 Misrepresentation as to gold content. (a) It is... covered with a base metal (such as nickel), which is covered with a thin wash of gold, unless there is a disclosure that the primary gold coating is covered with a base metal, which is gold washed. (7) Use of...

  10. 16 CFR 23.4 - Misrepresentation as to gold content.

    Code of Federal Regulations, 2014 CFR

    2014-01-01

    ... JEWELRY, PRECIOUS METALS, AND PEWTER INDUSTRIES § 23.4 Misrepresentation as to gold content. (a) It is... covered with a base metal (such as nickel), which is covered with a thin wash of gold, unless there is a disclosure that the primary gold coating is covered with a base metal, which is gold washed. (7) Use of...

  11. 16 CFR 23.4 - Misrepresentation as to gold content.

    Code of Federal Regulations, 2012 CFR

    2012-01-01

    ... JEWELRY, PRECIOUS METALS, AND PEWTER INDUSTRIES § 23.4 Misrepresentation as to gold content. (a) It is... covered with a base metal (such as nickel), which is covered with a thin wash of gold, unless there is a disclosure that the primary gold coating is covered with a base metal, which is gold washed. (7) Use of...

  12. 16 CFR 23.4 - Misrepresentation as to gold content.

    Code of Federal Regulations, 2013 CFR

    2013-01-01

    ... JEWELRY, PRECIOUS METALS, AND PEWTER INDUSTRIES § 23.4 Misrepresentation as to gold content. (a) It is... covered with a base metal (such as nickel), which is covered with a thin wash of gold, unless there is a disclosure that the primary gold coating is covered with a base metal, which is gold washed. (7) Use of...

  13. 49 CFR 234.3 - Application and responsibility for compliance.

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ... following: (1) Operations of a plant railroad as defined in § 234.5; (2) Rapid transit operations in an urban area that are not connected to the general railroad system of transportation; or (3) Tourist... enclave in such a way that there is no reasonable expectation that the safety of the public—except a...

  14. 49 CFR 234.3 - Application and responsibility for compliance.

    Code of Federal Regulations, 2012 CFR

    2012-10-01

    ... following: (1) Operations of a plant railroad as defined in § 234.5; (2) Rapid transit operations in an urban area that are not connected to the general railroad system of transportation; or (3) Tourist... enclave in such a way that there is no reasonable expectation that the safety of the public—except a...

  15. 49 CFR 234.3 - Application and responsibility for compliance.

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ... following: (1) Operations of a plant railroad as defined in § 234.5; (2) Rapid transit operations in an urban area that are not connected to the general railroad system of transportation; or (3) Tourist... enclave in such a way that there is no reasonable expectation that the safety of the public—except a...

  16. 24 CFR 248.234 - Section 8 rental assistance.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ... AUTHORITIES PREPAYMENT OF LOW INCOME HOUSING MORTGAGES Prepayment and Plans of Action Under the Emergency Low Income Preservation Act of 1987 § 248.234 Section 8 rental assistance. (a) When providing rental... the revised plan of action, notwithstanding § 248.221, that involves the termination of...

  17. 42 CFR 455.234 - Awarding of a contract.

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ... Public Health CENTERS FOR MEDICARE & MEDICAID SERVICES, DEPARTMENT OF HEALTH AND HUMAN SERVICES (CONTINUED) MEDICAL ASSISTANCE PROGRAMS PROGRAM INTEGRITY: MEDICAID Medicaid Integrity Program § 455.234 Awarding of a contract. (a) CMS awards and administers Medicaid integrity audit program contracts in...

  18. 42 CFR 455.234 - Awarding of a contract.

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ... Public Health CENTERS FOR MEDICARE & MEDICAID SERVICES, DEPARTMENT OF HEALTH AND HUMAN SERVICES (CONTINUED) MEDICAL ASSISTANCE PROGRAMS PROGRAM INTEGRITY: MEDICAID Medicaid Integrity Program § 455.234 Awarding of a contract. (a) CMS awards and administers Medicaid integrity audit program contracts in...

  19. 42 CFR 455.234 - Awarding of a contract.

    Code of Federal Regulations, 2012 CFR

    2012-10-01

    ... Public Health CENTERS FOR MEDICARE & MEDICAID SERVICES, DEPARTMENT OF HEALTH AND HUMAN SERVICES (CONTINUED) MEDICAL ASSISTANCE PROGRAMS PROGRAM INTEGRITY: MEDICAID Medicaid Integrity Program § 455.234 Awarding of a contract. (a) CMS awards and administers Medicaid integrity audit program contracts in...

  20. 36 CFR 223.234 - Determination of responsibility.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... AGRICULTURE SALE AND DISPOSAL OF NATIONAL FOREST SYSTEM TIMBER Special Forest Products Award of Contracts, Permits, Or Other Authorizing Instruments § 223.234 Determination of responsibility. (a) A Contracting Officer shall not award a contract, permit, or other instrument authorizing the sale of special forest...

  1. 234. Photocopy of drawing (1958 piping drawing by the Ralph ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    234. Photocopy of drawing (1958 piping drawing by the Ralph M. Parsons Company) BOOSTER LIQUID OXYGEN SYSTEM FLOW DIAGRAM FOR THE LSB, SHEET P2 OF 36 - Vandenberg Air Force Base, Space Launch Complex 3, Launch Pad 3 East, Napa & Alden Roads, Lompoc, Santa Barbara County, CA

  2. 19 CFR 10.234 - Certificate of Origin.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ... Partnership Act Non-Textile Articles Under the United States-Caribbean Basin Trade Partnership Act § 10.234... United States qualifies for the preferential tariff treatment referred to in § 10.231. The Certificate of... article qualifies for preferential tariff treatment; or (b) A completed and signed Certificate of...

  3. 49 CFR 234.265 - Timing relays and timing devices.

    Code of Federal Regulations, 2012 CFR

    2012-10-01

    ... 49 Transportation 4 2012-10-01 2012-10-01 false Timing relays and timing devices. 234.265 Section....265 Timing relays and timing devices. Each timing relay and timing device shall be tested at least... or marked on the timing relay or timing device. Timing devices which perform internal...

  4. 49 CFR 234.265 - Timing relays and timing devices.

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ... 49 Transportation 4 2013-10-01 2013-10-01 false Timing relays and timing devices. 234.265 Section....265 Timing relays and timing devices. Each timing relay and timing device shall be tested at least... or marked on the timing relay or timing device. Timing devices which perform internal...

  5. 49 CFR 234.265 - Timing relays and timing devices.

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ... 49 Transportation 4 2014-10-01 2014-10-01 false Timing relays and timing devices. 234.265 Section....265 Timing relays and timing devices. Each timing relay and timing device shall be tested at least... or marked on the timing relay or timing device. Timing devices which perform internal...

  6. 234Th and particle cycling in the central equatorial Pacific

    NASA Astrophysics Data System (ADS)

    Dunne, John P.; Murray, James W.; Young, Jennifer; Balistrieri, Laurie S.; Bishop, James

    US JGOFS-EgPac 234Th data sets for 1992 boreal spring (Survey I, TT007) and fall (Survey 11, TT011) cruises from 12°N to 12°S along 140°W were used to determine rates of 234Th and particle cycling using a thorium sorption model and three coupled particle-thorium models. Sampling methodology had a large impact on model results — estimates of particulate organic carbon varied by a factor of 3 between bottle and in-situ filtration techniques. Adsorption rate constants and residence times from the thorium sorption model showed strong depth, latitudinal and seasonal variability which we were able to attribute to changes in particle concentration. A reevaluation of the `particle concentration effect' on the adsorption rate constant, k', showed that our values of k' increased with particle concentration and were consistent with other study sites with similar particle concentrations. Recycling of particulate organic carbon in the euphotic zone of the central equatorial Pacific was 2-10 times faster than sites previously studied. Calculations of adsorption rate constants from the thorium sorption, coupled particle- 234Th and phytoplankton models were extremely dependent on the model treatment of remineralization. Results from the coupled particle- 234Th model, where particles have a constant ]ability, suggested that 234Th recycled three to four times between the dissolved and paticulate phases before being removed from the euphotic zone. Aggregation rate constants and sinking rates in the central equatorial system were compared with other sites using the size-fractionated model developed by Clegg and Whitfield (1991, Deep-Sea Research, 38, 91-120). Removal of particles by sinking from the equatorial euphotic zone depended on a mechanism of differential recycling of organic matter in the euphotic zone in which only a fraction of the particles are remineralized and the more refractory particles sink.

  7. Imaging CIN(3) photodissociation from 234 to 280 nm.

    PubMed

    Samartzis, Peter C; Hansen, Nils; Wodtke, Alec M

    2006-07-07

    We report Cl((2)P(3/2)) and Cl*((2)P(1/2)) fragment images following ClN(3) photolysis in the 234-280 nm region measured by velocity map imaging. Kinetic energy distributions change shape with photolysis wavelength from bimodal at 234 and 240 nm to single peak at 266 and 280 nm. Where two peaks exist, their ratio is significantly different for Cl and Cl* fragments. The single peak of 266 and 280 nm and the faster peak at 234 and 240 nm are assigned to a Cl + linear-N(3) dissociation channel, in agreement with previous work. The slow peak in the bimodal distributions is assigned to the formation of a high energy form (HEF) of N(3). Candidates for the identity of HEF-N(3) are discussed. Combining our data with photofragmentation translational spectroscopy results, we determined the threshold for the appearance of HEF-N(3) at 4.83 +/- 0.17 eV photolysis energy. This threshold behavior is similar to recently reported results on the wavelength dependence of HN(3) photolysis, where the threshold was associated with a ring closed isomer of HN(3) on the S(1) potential energy surface. We also note that the HEF-N(3) formation threshold observed for ClN(3) occurs where the energy available to the products equals the isomerization barrier from linear to cyclic-N(3).

  8. 14 CFR 234.10 - Voluntary disclosure of on-time performance codes.

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ... 14 Aeronautics and Space 4 2010-01-01 2010-01-01 false Voluntary disclosure of on-time performance codes. 234.10 Section 234.10 Aeronautics and Space OFFICE OF THE SECRETARY, DEPARTMENT OF TRANSPORTATION (AVIATION PROCEEDINGS) ECONOMIC REGULATIONS AIRLINE SERVICE QUALITY PERFORMANCE REPORTS § 234.10 Voluntary...

  9. 48 CFR 252.234-7003 - Notice of Cost and Software Data Reporting System. (NOV 2010)

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ... Software Data Reporting System. (NOV 2010) 252.234-7003 Section 252.234-7003 Federal Acquisition... Software Data Reporting System. (NOV 2010) As prescribed in 234-7101(a)(1), use the following provision: NOTICE OF COST AND SOFTWARE DATA REPORTING SYSTEM (NOV 2010) (a) This solicitation includes— (1)...

  10. 14 CFR 234.8 - Calculation of on-time performance codes.

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ... 14 Aeronautics and Space 4 2010-01-01 2010-01-01 false Calculation of on-time performance codes. 234.8 Section 234.8 Aeronautics and Space OFFICE OF THE SECRETARY, DEPARTMENT OF TRANSPORTATION (AVIATION PROCEEDINGS) ECONOMIC REGULATIONS AIRLINE SERVICE QUALITY PERFORMANCE REPORTS § 234.8...

  11. 14 CFR 234.9 - Reporting of on-time performance codes.

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ... 14 Aeronautics and Space 4 2010-01-01 2010-01-01 false Reporting of on-time performance codes. 234.9 Section 234.9 Aeronautics and Space OFFICE OF THE SECRETARY, DEPARTMENT OF TRANSPORTATION (AVIATION PROCEEDINGS) ECONOMIC REGULATIONS AIRLINE SERVICE QUALITY PERFORMANCE REPORTS § 234.9 Reporting...

  12. 8 CFR 234.4 - International airports for entry of aliens.

    Code of Federal Regulations, 2013 CFR

    2013-01-01

    ... 8 Aliens and Nationality 1 2013-01-01 2013-01-01 false International airports for entry of aliens. 234.4 Section 234.4 Aliens and Nationality DEPARTMENT OF HOMELAND SECURITY IMMIGRATION REGULATIONS DESIGNATION OF PORTS OF ENTRY FOR ALIENS ARRIVING BY CIVIL AIRCRAFT § 234.4 International airports for entry...

  13. 8 CFR 234.4 - International airports for entry of aliens.

    Code of Federal Regulations, 2012 CFR

    2012-01-01

    ... 8 Aliens and Nationality 1 2012-01-01 2012-01-01 false International airports for entry of aliens. 234.4 Section 234.4 Aliens and Nationality DEPARTMENT OF HOMELAND SECURITY IMMIGRATION REGULATIONS DESIGNATION OF PORTS OF ENTRY FOR ALIENS ARRIVING BY CIVIL AIRCRAFT § 234.4 International airports for entry...

  14. 8 CFR 234.4 - International airports for entry of aliens.

    Code of Federal Regulations, 2014 CFR

    2014-01-01

    ... 8 Aliens and Nationality 1 2014-01-01 2014-01-01 false International airports for entry of aliens. 234.4 Section 234.4 Aliens and Nationality DEPARTMENT OF HOMELAND SECURITY IMMIGRATION REGULATIONS DESIGNATION OF PORTS OF ENTRY FOR ALIENS ARRIVING BY CIVIL AIRCRAFT § 234.4 International airports for entry...

  15. 48 CFR 52.234-2 - Notice of Earned Value Management System-Pre-Award IBR.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... 48 Federal Acquisition Regulations System 2 2010-10-01 2010-10-01 false Notice of Earned Value Management System-Pre-Award IBR. 52.234-2 Section 52.234-2 Federal Acquisition Regulations System FEDERAL... Provisions and Clauses 52.234-2 Notice of Earned Value Management System—Pre-Award IBR. As prescribed in...

  16. 49 CFR 213.234 - Automated inspection of track constructed with concrete crossties.

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ... concrete crossties. 213.234 Section 213.234 Transportation Other Regulations Relating to Transportation... § 213.234 Automated inspection of track constructed with concrete crossties. Link to an amendment... track inspection required under § 213.233, for Class 3 main track constructed with concrete...

  17. 43 CFR 30.234 - What happens if a hearing transcript has not been prepared?

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ... 43 Public Lands: Interior 1 2011-10-01 2011-10-01 false What happens if a hearing transcript has not been prepared? 30.234 Section 30.234 Public Lands: Interior Office of the Secretary of the Interior INDIAN PROBATE HEARINGS PROCEDURES Formal Probate Proceedings Hearings § 30.234 What happens if...

  18. 43 CFR 30.234 - What happens if a hearing transcript has not been prepared?

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... 43 Public Lands: Interior 1 2010-10-01 2010-10-01 false What happens if a hearing transcript has not been prepared? 30.234 Section 30.234 Public Lands: Interior Office of the Secretary of the Interior INDIAN PROBATE HEARINGS PROCEDURES Formal Probate Proceedings Hearings § 30.234 What happens if...

  19. 8 CFR 234.4 - International airports for entry of aliens.

    Code of Federal Regulations, 2011 CFR

    2011-01-01

    ... 8 Aliens and Nationality 1 2011-01-01 2011-01-01 false International airports for entry of aliens. 234.4 Section 234.4 Aliens and Nationality DEPARTMENT OF HOMELAND SECURITY IMMIGRATION REGULATIONS DESIGNATION OF PORTS OF ENTRY FOR ALIENS ARRIVING BY CIVIL AIRCRAFT § 234.4 International airports for...

  20. 8 CFR 234.4 - International airports for entry of aliens.

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ... 8 Aliens and Nationality 1 2010-01-01 2010-01-01 false International airports for entry of aliens. 234.4 Section 234.4 Aliens and Nationality DEPARTMENT OF HOMELAND SECURITY IMMIGRATION REGULATIONS DESIGNATION OF PORTS OF ENTRY FOR ALIENS ARRIVING BY CIVIL AIRCRAFT § 234.4 International airports for...