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Sample records for actinium 230

  1. Spectroscopic and computational investigation of actinium coordination chemistry

    Science.gov (United States)

    Ferrier, Maryline G.; Batista, Enrique R.; Berg, John M.; Birnbaum, Eva R.; Cross, Justin N.; Engle, Jonathan W.; La Pierre, Henry S.; Kozimor, Stosh A.; Lezama Pacheco, Juan S.; Stein, Benjamin W.; Stieber, S. Chantal E.; Wilson, Justin J.

    2016-08-01

    Actinium-225 is a promising isotope for targeted-α therapy. Unfortunately, progress in developing chelators for medicinal applications has been hindered by a limited understanding of actinium chemistry. This knowledge gap is primarily associated with handling actinium, as it is highly radioactive and in short supply. Hence, AcIII reactivity is often inferred from the lanthanides and minor actinides (that is, Am, Cm), with limited success. Here we overcome these challenges and characterize actinium in HCl solutions using X-ray absorption spectroscopy and molecular dynamics density functional theory. The Ac-Cl and Ac-OH2O distances are measured to be 2.95(3) and 2.59(3) Å, respectively. The X-ray absorption spectroscopy comparisons between AcIII and AmIII in HCl solutions indicate AcIII coordinates more inner-sphere Cl1- ligands (3.2+/-1.1) than AmIII (0.8+/-0.3). These results imply diverse reactivity for the +3 actinides and highlight the unexpected and unique AcIII chemical behaviour.

  2. Spectroscopic and computational investigation of actinium coordination chemistry

    Science.gov (United States)

    Ferrier, Maryline G.; Batista, Enrique R.; Berg, John M.; Birnbaum, Eva R.; Cross, Justin N.; Engle, Jonathan W.; La Pierre, Henry S.; Kozimor, Stosh A.; Lezama Pacheco, Juan S.; Stein, Benjamin W.; Stieber, S. Chantal E.; Wilson, Justin J.

    2016-01-01

    Actinium-225 is a promising isotope for targeted-α therapy. Unfortunately, progress in developing chelators for medicinal applications has been hindered by a limited understanding of actinium chemistry. This knowledge gap is primarily associated with handling actinium, as it is highly radioactive and in short supply. Hence, AcIII reactivity is often inferred from the lanthanides and minor actinides (that is, Am, Cm), with limited success. Here we overcome these challenges and characterize actinium in HCl solutions using X-ray absorption spectroscopy and molecular dynamics density functional theory. The Ac–Cl and Ac–OH2O distances are measured to be 2.95(3) and 2.59(3) Å, respectively. The X-ray absorption spectroscopy comparisons between AcIII and AmIII in HCl solutions indicate AcIII coordinates more inner-sphere Cl1– ligands (3.2±1.1) than AmIII (0.8±0.3). These results imply diverse reactivity for the +3 actinides and highlight the unexpected and unique AcIII chemical behaviour. PMID:27531582

  3. Discovery of the actinium, thorium, protactinium, and uranium isotopes

    CERN Document Server

    Fry, C

    2012-01-01

    Currently, 31 actinium, 31 thorium, 28 protactinium, and 23 uranium isotopes have so far been observed; the discovery of these isotopes is discussed. For each isotope a brief summary of the first refereed publication, including the production and identification method, is presented.

  4. Production of high-purity radium-223 from legacy actinium-beryllium neutron sources.

    Science.gov (United States)

    Soderquist, Chuck Z; McNamara, Bruce K; Fisher, Darrell R

    2012-07-01

    Radium-223 is a short-lived alpha-particle-emitting radionuclide with potential applications in cancer treatment. Research to develop new radiopharmaceuticals employing (223)Ra has been hindered by poor availability due to the small quantities of parent actinium-227 available world-wide. The purpose of this study was to develop innovative and cost-effective methods to obtain high-purity (223)Ra from (227)Ac. We obtained (227)Ac from two surplus actinium-beryllium neutron generators. We retrieved the actinium/beryllium buttons from the sources and dissolved them in a sulfuric-nitric acid solution. A crude actinium solid was recovered from the solution by coprecipitation with thorium fluoride, leaving beryllium in solution. The crude actinium was purified to provide about 40 milligrams of actinium nitrate using anion exchange in methanol-water-nitric acid solution. The purified actinium was then used to generate high-purity (223)Ra. We extracted (223)Ra using anion exchange in a methanol-water-nitric acid solution. After the radium was separated, actinium and thorium were then eluted from the column and dried for interim storage. This single-pass separation produces high purity, carrier-free (223)Ra product, and does not disturb the (227)Ac/(227)Th equilibrium. A high purity, carrier-free (227)Th was also obtained from the actinium using a similar anion exchange in nitric acid. These methods enable efficient production of (223)Ra for research and new alpha-emitter radiopharmaceutical development.

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

    Science.gov (United States)

    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.

  6. Effects of spin-orbit coupling on actinium under pressure

    Energy Technology Data Exchange (ETDEWEB)

    Rubio-Ponce, A.; Rivera, J. [Departamento de Ciencias Basicas, Universidad Autonoma Metropolitana-Azcapotzalco, Mexico (Mexico); Olguin, D. [Departamento de Fi sica, Centro de Investigacion y de Estudios Avanzados del Instituto Politecnico Nacional, Mexico (Mexico)

    2015-04-15

    Actinium (Ac) is a radioactive metal and the first element of the actinide series. At ambient conditions Ac crystallizes in the fcc lattice, however, up to date its phase diagram is unknown. In the present work, we have studied the structural and electronic properties of Ac under hydrostatic pressure assuming the fcc structure as well as three hypothetical structures, namely the hcp, bcc, and sc, and for pressures up to 100 GPa. From our calculations, we found only one structural transition allowed, from the fcc to hcp, our calculated pressure was 39.85 GPa. The calculations were performed by means of the full potential linearized augmented plane wave (FLAPW) method and the generalized gradient approximation (GGA) for the exchange-correlation energy, where we have included in our study the spin-orbit coupling which is important for heavy elements. The total energy results were fitted to the third order Birch-Murnaghan's equation of state. (copyright 2015 WILEY-VCH Verlag GmbH and Co. KGaA, Weinheim)

  7. Production of Actinium-225 via High Energy Proton Induced Spallation of Thorium-232

    Energy Technology Data Exchange (ETDEWEB)

    Harvey, James T.; Nolen, Jerry; Vandergrift, George; Gomes, Itacil; Kroc, Tom; Horwitz, Phil; McAlister, Dan; Bowers, Del; Sullivan, Vivian; Greene, John

    2011-12-30

    The science of cancer research is currently expanding its use of alpha particle emitting radioisotopes. Coupled with the discovery and proliferation of molecular species that seek out and attach to tumors, new therapy and diagnostics are being developed to enhance the treatment of cancer and other diseases. This latest technology is commonly referred to as Alpha Immunotherapy (AIT). Actinium-225/Bismuth-213 is a parent/daughter alpha-emitting radioisotope pair that is highly sought after because of the potential for treating numerous diseases and its ability to be chemically compatible with many known and widely used carrier molecules (such as monoclonal antibodies and proteins/peptides). Unfortunately, the worldwide supply of actinium-225 is limited to about 1,000mCi annually and most of that is currently spoken for, thus limiting the ability of this radioisotope pair to enter into research and subsequently clinical trials. The route proposed herein utilizes high energy protons to produce actinium-225 via spallation of a thorium-232 target. As part of previous R and D efforts carried out at Argonne National Laboratory recently in support of the proposed US FRIB facility, it was shown that a very effective production mechanism for actinium-225 is spallation of thorium-232 by high energy proton beams. The base-line simulation for the production rate of actinium-225 by this reaction mechanism is 8E12 atoms per second at 200 MeV proton beam energy with 50 g/cm2 thorium target and 100 kW beam power. An irradiation of one actinium-225 half-life (10 days) produces {approx}100 Ci of actinium-225. For a given beam current the reaction cross section increases slightly with energy to about 400 MeV and then decreases slightly for beam energies in the several GeV regime. The object of this effort is to refine the simulations at proton beam energies of 400 MeV and above up to about 8 GeV. Once completed, the simulations will be experimentally verified using 400 MeV and 8 Ge

  8. Report for General Research September 18 to December 11, 1950 (Actinium Volume)

    Energy Technology Data Exchange (ETDEWEB)

    Haring, M.M.

    1951-01-15

    The purpose of the research work presented in this volume is to develop a process for the separation and purification of actinium-227 produced by neutron bombardment of radium-226 and to develop methods by which uniform films of actinium metal may be deposited on metallic surfaces. The design work on the cave structure and mechanical equipment used in the actinium separation is proceeding on schedule. As the mechanical design phase is nearing completion the emphasis is being directed toward processing equipment. The process as well as the mechanical equipment has been adapted from the research work of F. T. Hagemann and the Remote Control Group at Argonne National Laboratory. Consequently, one of the first objectives is to become familiary with the chemistry of the process and the operation of the mechanical equipment. Cold runs have been made on the T.T.A. benzene extraction using lanthanum and barium in place of actinium and radium. No difficulty with the operation was observed. The formation of precipitates was one of the difficulties encountered with the process as the precipitates carry radium. It has been found that metals such as nickel cause these precipitates to form and should, therefore, be avoided in the construction of equipment. it was also found that a T.T.A. solution exposed to 0.5 curie of polonium over a period of days develops a precipitate. Some new mechanical features hav eshown promise. The use of copper-coated glassware which will hold together even though the glass is cracked has made it possible to replace custom-built heaters with standard heating mantles. A new graphite, silicone grease mixture appears to hold up in stopcocks handling benzene and, as a result, may eliminate the necessary of entering the cave for regreasing. Tests on the preparation of dense concrete have given results which meet the shielding requirements for the cave. A strippable paint and tape combination has been studied and specified to provide for decontamination of

  9. ACC 230 UOP TUTORIAL / Uoptutorial

    OpenAIRE

    Justin Bieber

    2015-01-01

    For more course tutorials visit www.uoptutorial.com   ACC 230 Week 1 Checkpoint Financial Statements ACC 230 Week 1 DQ 1 and DQ 2 ACC 230 Week 2 CheckPoint Differentiating Depreciation Methods ACC 230 Week 2 Assignment Lucent Technologies Case ACC 230 Week 3 CheckPoint Preparing an Income Statement ACC 230 Week 3 DQ 1 and DQ 2 ACC 230 Week 4 CheckPoint Analyzing an Income Statement ACC 230 Week 4 Assignment Web Sites Search ACC 230 Week 5 Chec...

  10. Analysis of the gamma spectra of the uranium, actinium, and thorium decay series

    Energy Technology Data Exchange (ETDEWEB)

    Momeni, M.H.

    1981-09-01

    This report describes the identification of radionuclides in the uranium, actinium, and thorium series by analysis of gamma spectra in the energy range of 40 to 1400 keV. Energies and absolute efficiencies for each gamma line were measured by means of a high-resolution germanium detector and compared with those in the literature. A gamma spectroscopy method, which utilizes an on-line computer for deconvolution of spectra, search and identification of each line, and estimation of activity for each radionuclide, was used to analyze soil and uranium tailings, and ore.

  11. Application of ion exchange and extraction chromatography to the separation of actinium from proton-irradiated thorium metal for analytical purposes.

    Science.gov (United States)

    Radchenko, V; Engle, J W; Wilson, J J; Maassen, J R; Nortier, F M; Taylor, W A; Birnbaum, E R; Hudston, L A; John, K D; Fassbender, M E

    2015-02-06

    Actinium-225 (t1/2=9.92d) is an α-emitting radionuclide with nuclear properties well-suited for use in targeted alpha therapy (TAT), a powerful treatment method for malignant tumors. Actinium-225 can also be utilized as a generator for (213)Bi (t1/2 45.6 min), which is another valuable candidate for TAT. Actinium-225 can be produced via proton irradiation of thorium metal; however, long-lived (227)Ac (t1/2=21.8a, 99% β(-), 1% α) is co-produced during this process and will impact the quality of the final product. Thus, accurate assays are needed to determine the (225)Ac/(227)Ac ratio, which is dependent on beam energy, irradiation time and target design. Accurate actinium assays, in turn, require efficient separation of actinium isotopes from both the Th matrix and highly radioactive activation by-products, especially radiolanthanides formed from proton-induced fission. In this study, we introduce a novel, selective chromatographic technique for the recovery and purification of actinium isotopes from irradiated Th matrices. A two-step sequence of cation exchange and extraction chromatography was implemented. Radiolanthanides were quantitatively removed from Ac, and no non-Ac radionuclidic impurities were detected in the final Ac fraction. An (225)Ac spike added prior to separation was recovered at ≥ 98%, and Ac decontamination from Th was found to be ≥ 10(6). The purified actinium fraction allowed for highly accurate (227)Ac determination at analytical scales, i.e., at (227)Ac activities of 1-100 kBq (27 nCi to 2.7 μCi). Copyright © 2014 Elsevier B.V. All rights reserved.

  12. Thorium and actinium polyphosphonate compounds as bone-seeking alpha particle-emitting agents.

    Science.gov (United States)

    Henriksen, Gjermund; Bruland, Oyvind S; Larsen, Roy H

    2004-01-01

    The present study explores the use of alpha-particle-emitting, bone-seeking agents as candidates for targeted radiotherapy. Actinium and thorium 1,4,7,10 tetraazacyclododecane N,N',N'',N''' 1,4,7,10-tetra(methylene) phosphonic acid (DOTMP) and thorium-diethylene triamine N,N',N'' penta(methylene) phosphonic acid (DTMP) were prepared and their biodistribution evaluated in conventional Balb/C mice at four hours after injection. All three bone-seeking agents showed a high uptake in bone and a low uptake in soft tissues. Among the soft tissue organs, only kidney had a relatively high uptake. The femur/kidney ratios for 227Th-DTMP, 228-Ac-DOTMP and 227Th-DOTMP were 14.2, 7.6 and 6.0, respectively. A higher liver uptake of 228Ac-DOTMP was seen than for 227Th-DTMP and 227Th-DOTMP. This suggests that some demetallation of the 228Ac-DOTMP complex had occurred. The results indicate that 225Ac-DOTMP, 227Th-DOTMP and 227Th-DTMP have promising properties as potential therapeutic bone-seeking agents.

  13. Developments towards in-gas-jet laser spectroscopy studies of actinium isotopes at LISOL

    Energy Technology Data Exchange (ETDEWEB)

    Raeder, S., E-mail: s.raeder@gsi.de [KU Leuven, Instituut voor Kern- en Stralingsfysica, Celestijnenlaan 200D, B-3001 Leuven (Belgium); Helmholtz-Institut Mainz, 55128 Mainz (Germany); GSI Helmholtzzentrum für Schwerionenforschung GmbH, Planckstraße 1, 64291 Darmstadt (Germany); Bastin, B. [GANIL, CEA/DSM-CNRS/IN2P3, B.P. 55027, 14076 Caen (France); Block, M. [Helmholtz-Institut Mainz, 55128 Mainz (Germany); GSI Helmholtzzentrum für Schwerionenforschung GmbH, Planckstraße 1, 64291 Darmstadt (Germany); Institut für Kernchemie, Johannes Gutenberg Universität, 55128 Mainz (Germany); Creemers, P. [KU Leuven, Instituut voor Kern- en Stralingsfysica, Celestijnenlaan 200D, B-3001 Leuven (Belgium); Delahaye, P. [GANIL, CEA/DSM-CNRS/IN2P3, B.P. 55027, 14076 Caen (France); Ferrer, R. [KU Leuven, Instituut voor Kern- en Stralingsfysica, Celestijnenlaan 200D, B-3001 Leuven (Belgium); Fléchard, X. [LPC Caen, ENSICAEN, Université de Caen, CNRS/IN2P3, Caen (France); Franchoo, S. [Institute de Physique Nucléaire (IPN) d’Orsay, 91406 Orsay, Cedex (France); Ghys, L. [KU Leuven, Instituut voor Kern- en Stralingsfysica, Celestijnenlaan 200D, B-3001 Leuven (Belgium); SCK-CEN, Belgian Nuclear Research Center, Boeretang 200, 2400 Mol (Belgium); Gaffney, L.P.; Granados, C. [KU Leuven, Instituut voor Kern- en Stralingsfysica, Celestijnenlaan 200D, B-3001 Leuven (Belgium); Heinke, R. [Institut für Physik, Johannes Gutenberg Universität, 55128 Mainz (Germany); Hijazi, L. [GANIL, CEA/DSM-CNRS/IN2P3, B.P. 55027, 14076 Caen (France); and others

    2016-06-01

    To study exotic nuclides at the borders of stability with laser ionization and spectroscopy techniques, highest efficiencies in combination with a high spectral resolution are required. These usually opposing requirements are reconciled by applying the in-gas-laser ionization and spectroscopy (IGLIS) technique in the supersonic gas jet produced by a de Laval nozzle installed at the exit of the stopping gas cell. Carrying out laser ionization in the low-temperature and low density supersonic gas jet eliminates pressure broadening, which will significantly improve the spectral resolution. This article presents the required modifications at the Leuven Isotope Separator On-Line (LISOL) facility that are needed for the first on-line studies of in-gas-jet laser spectroscopy. Different geometries for the gas outlet and extraction ion guides have been tested for their performance regarding the acceptance of laser ionized species as well as for their differential pumping capacities. The specifications and performance of the temporarily installed high repetition rate laser system, including a narrow bandwidth injection-locked Ti:sapphire laser, are discussed and first preliminary results on neutron-deficient actinium isotopes are presented indicating the high capability of this novel technique.

  14. 40_ _230 - 233__Hassan _Structural

    African Journals Online (AJOL)

    User

    Bayero Journal of Pure and Applied Sciences, 9(2): 230 - 233. Received: ... electron microscopy (SEM) were used to observe the surface and internal structure of the quartz. The results ... structure of a material may be divided into four levels:.

  15. 7 CFR 65.230 - Production step.

    Science.gov (United States)

    2010-01-01

    ... 7 Agriculture 3 2010-01-01 2010-01-01 false Production step. 65.230 Section 65.230 Agriculture Regulations of the Department of Agriculture (Continued) AGRICULTURAL MARKETING SERVICE (Standards..., PEANUTS, AND GINSENG General Provisions Definitions § 65.230 Production step. Production step means, in...

  16. 49 CFR 230.47 - Boiler number.

    Science.gov (United States)

    2010-10-01

    ... 49 Transportation 4 2010-10-01 2010-10-01 false Boiler number. 230.47 Section 230.47..., DEPARTMENT OF TRANSPORTATION STEAM LOCOMOTIVE INSPECTION AND MAINTENANCE STANDARDS Boilers and Appurtenances Steam Gauges § 230.47 Boiler number. (a) Generally. The builder's number of the boiler, if known,...

  17. 40 CFR 230.22 - Water.

    Science.gov (United States)

    2010-07-01

    ... 40 Protection of Environment 24 2010-07-01 2010-07-01 false Water. 230.22 Section 230.22... Chemical Characteristics of the Aquatic Ecosystem § 230.22 Water. (a) Water is the part of the aquatic... the liquid phase and is contained by the substrate. Water forms part of a dynamic aquatic life...

  18. 40 CFR 230.44 - Coral reefs.

    Science.gov (United States)

    2010-07-01

    ... 40 Protection of Environment 24 2010-07-01 2010-07-01 false Coral reefs. 230.44 Section 230.44... Aquatic Sites § 230.44 Coral reefs. (a) Coral reefs consist of the skeletal deposit, usually of calcareous... organisms present in growing portions of the reef. (b) Possible loss of values: The discharge of dredged or...

  19. 49 CFR 230.89 - Reverse gear.

    Science.gov (United States)

    2010-10-01

    ... 49 Transportation 4 2010-10-01 2010-10-01 false Reverse gear. 230.89 Section 230.89 Transportation... Reversing Gear § 230.89 Reverse gear. (a) General provisions. Reverse gear, reverse levers, and quadrants... quadrant. Proper counterbalance shall be provided for the valve gear. (b) Air-operated power reverse...

  20. 40 CFR 230.32 - Other wildlife.

    Science.gov (United States)

    2010-07-01

    ... 40 Protection of Environment 24 2010-07-01 2010-07-01 false Other wildlife. 230.32 Section 230.32... Characteristics of the Aquatic Ecosystem § 230.32 Other wildlife. (a) Wildlife associated with aquatic ecosystems... cover, travel corridors, and preferred food sources for resident and transient wildlife...

  1. 49 CFR 230.116 - Oil tanks.

    Science.gov (United States)

    2010-10-01

    ... 49 Transportation 4 2010-10-01 2010-10-01 false Oil tanks. 230.116 Section 230.116 Transportation... Locomotive Tanks § 230.116 Oil tanks. The oil tanks on oil burning steam locomotives shall be maintained free... adjacent to the fuel supply tank or in another safe location; (b) Closes automatically when tripped...

  2. 38 CFR 41.230 - Audit costs.

    Science.gov (United States)

    2010-07-01

    ... 38 Pensions, Bonuses, and Veterans' Relief 2 2010-07-01 2010-07-01 false Audit costs. 41.230 Section 41.230 Pensions, Bonuses, and Veterans' Relief DEPARTMENT OF VETERANS AFFAIRS (CONTINUED) AUDITS OF STATES, LOCAL GOVERNMENTS, AND NON-PROFIT ORGANIZATIONS Audits § 41.230 Audit costs. (a)...

  3. 22 CFR 230.14 - Arbitration.

    Science.gov (United States)

    2010-04-01

    ... 22 Foreign Relations 1 2010-04-01 2010-04-01 false Arbitration. 230.14 Section 230.14 Foreign Relations AGENCY FOR INTERNATIONAL DEVELOPMENT ISRAEL LOAN GUARANTEES ISSUED UNDER THE EMERGENCY WARTIME SUPPLEMENTAL APPROPRIATIONS ACT OF 2003, PUB. L. 108-11-STANDARD TERMS AND CONDITIONS § 230.14 Arbitration. Any...

  4. 49 CFR 230.69 - Ash pans.

    Science.gov (United States)

    2010-10-01

    ... 49 Transportation 4 2010-10-01 2010-10-01 false Ash pans. 230.69 Section 230.69 Transportation... TRANSPORTATION STEAM LOCOMOTIVE INSPECTION AND MAINTENANCE STANDARDS Steam Locomotives and Tenders Ash Pans § 230.69 Ash pans. Ash pans shall be securely supported from mud-rings or frames with no part less than...

  5. 49 CFR 230.86 - Required illumination.

    Science.gov (United States)

    2010-10-01

    ... 49 Transportation 4 2010-10-01 2010-10-01 false Required illumination. 230.86 Section 230.86... Tenders Cabs, Warning Signals, Sanders and Lights § 230.86 Required illumination. (a) General provisions... provides illumination sufficient for a steam locomotive engineer in the cab to see, in a clear...

  6. 40 CFR 230.25 - Salinity gradients.

    Science.gov (United States)

    2010-07-01

    ... 40 Protection of Environment 24 2010-07-01 2010-07-01 false Salinity gradients. 230.25 Section 230... Physical and Chemical Characteristics of the Aquatic Ecosystem § 230.25 Salinity gradients. (a) Salinity... fresh or salt water may change existing salinity gradients. For example, partial blocking of...

  7. 40 CFR 230.41 - Wetlands.

    Science.gov (United States)

    2010-07-01

    ... 40 Protection of Environment 24 2010-07-01 2010-07-01 false Wetlands. 230.41 Section 230.41... Aquatic Sites § 230.41 Wetlands. (a)(1) Wetlands consist of areas that are inundated or saturated by...) Where wetlands are adjacent to open water, they generally constitute the transition to upland. The...

  8. 9 CFR 2.30 - Registration.

    Science.gov (United States)

    2010-01-01

    ... sign the registration form. (2) In any situation in which a school or department of a university or... 9 Animals and Animal Products 1 2010-01-01 2010-01-01 false Registration. 2.30 Section 2.30... WELFARE REGULATIONS Research Facilities § 2.30 Registration. (a) Requirements and procedures. (1)...

  9. 40 CFR 230.97 - Management.

    Science.gov (United States)

    2010-07-01

    ... 40 Protection of Environment 24 2010-07-01 2010-07-01 false Management. 230.97 Section 230.97... Losses of Aquatic Resources § 230.97 Management. (a) Site protection. (1) The aquatic habitats, riparian.... For government property, long-term protection may be provided through federal facility...

  10. 12 CFR 230.8 - Advertising.

    Science.gov (United States)

    2010-01-01

    ... 12 Banks and Banking 3 2010-01-01 2010-01-01 false Advertising. 230.8 Section 230.8 Banks and... SAVINGS (REGULATION DD) § 230.8 Advertising. (a) Misleading or inaccurate advertisements. An advertisement... obtain the advertised annual percentage yield. For tiered-rate accounts, the minimum balance required...

  11. 40 CFR 230.4 - Organization.

    Science.gov (United States)

    2010-07-01

    ... 40 Protection of Environment 24 2010-07-01 2010-07-01 false Organization. 230.4 Section 230.4 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) OCEAN DUMPING SECTION 404(b)(1) GUIDELINES FOR SPECIFICATION OF DISPOSAL SITES FOR DREDGED OR FILL MATERIAL General § 230.4 Organization....

  12. 32 CFR 230.5 - Responsibilities.

    Science.gov (United States)

    2010-07-01

    ... 32 National Defense 2 2010-07-01 2010-07-01 false Responsibilities. 230.5 Section 230.5 National... FINANCIAL INSTITUTIONS ON DOD INSTALLATIONS § 230.5 Responsibilities. (a) The Under Secretary of Defense... affect the morale and welfare of DoD personnel. (d) DoD Component responsibilities pertaining to this...

  13. 32 CFR 230.4 - Policy.

    Science.gov (United States)

    2010-07-01

    ... 32 National Defense 2 2010-07-01 2010-07-01 false Policy. 230.4 Section 230.4 National Defense... INSTITUTIONS ON DOD INSTALLATIONS § 230.4 Policy. (a) The following pertains to financial institutions on DoD... the policies identified in this part. The DoD Components shall rely on commercially available sources...

  14. 22 CFR 230.16 - Governing law.

    Science.gov (United States)

    2010-04-01

    ... 22 Foreign Relations 1 2010-04-01 2010-04-01 false Governing law. 230.16 Section 230.16 Foreign... SUPPLEMENTAL APPROPRIATIONS ACT OF 2003, PUB. L. 108-11-STANDARD TERMS AND CONDITIONS § 230.16 Governing law. This Guarantee shall be governed by and construed in accordance with the laws of the United States...

  15. Dicty_cDB: VHI230 [Dicty_cDB

    Lifescience Database Archive (English)

    Full Text Available VH (Link to library) VHI230 (Link to dictyBase) - - - Contig-U16423-1 VHI230P (Link to Original site) VHI...230F 301 VHI230Z 675 VHI230P 956 - - Show VHI230 Library VH (Link to library) Clone ID VHI... URL http://dictycdb.biol.tsukuba.ac.jp/CSM/VH/VHI2-B/VHI230Q.Seq.d/ Representative seq. ID VHI...230P (Link to Original site) Representative DNA sequence >VHI230 (VHI230Q) /CSM/VH/VHI2-B/VHI2...fqiglkrwytisvclkvhqtqnqivhstnltivitiemitvvvmvvvvvvmevtvttv mieekinqitqcithtlatmvvhiikhsphvirliknnnpfxsi Fram

  16. 49 CFR 230.62 - Dry pipe.

    Science.gov (United States)

    2010-10-01

    ... 49 Transportation 4 2010-10-01 2010-10-01 false Dry pipe. 230.62 Section 230.62 Transportation Other Regulations Relating to Transportation (Continued) FEDERAL RAILROAD ADMINISTRATION, DEPARTMENT OF TRANSPORTATION STEAM LOCOMOTIVE INSPECTION AND MAINTENANCE STANDARDS Boilers and Appurtenances Steam Pipes §...

  17. 24 CFR 582.230 - Environmental review.

    Science.gov (United States)

    2010-04-01

    ... 24 Housing and Urban Development 3 2010-04-01 2010-04-01 false Environmental review. 582.230 Section 582.230 Housing and Urban Development Regulations Relating to Housing and Urban Development... any application that would require an Environmental Impact Statement (EIS). (b) The recipient,...

  18. 24 CFR 583.230 - Environmental review.

    Science.gov (United States)

    2010-04-01

    ... 24 Housing and Urban Development 3 2010-04-01 2010-04-01 false Environmental review. 583.230 Section 583.230 Housing and Urban Development Regulations Relating to Housing and Urban Development... would require an Environmental Impact Statement (EIS). (b) The recipient, its project partners and...

  19. 40 CFR 35.230 - Purpose.

    Science.gov (United States)

    2010-07-01

    ... ASSISTANCE Environmental Program Grants Pesticide Cooperative Enforcement (section 23(a)(1)) § 35.230 Purpose. (a) Purpose of section. Sections 35.230 through 35.235 govern Pesticide Enforcement Cooperative Agreements to States (as defined in section 2 of Federal Insecticide, Fungicide, and Rodenticide Act)...

  20. 17 CFR 230.494 - Newspaper prospectuses.

    Science.gov (United States)

    2010-04-01

    ... 17 Commodity and Securities Exchanges 2 2010-04-01 2010-04-01 false Newspaper prospectuses. 230... Subdivisions Thereof § 230.494 Newspaper prospectuses. (a) This section shall apply only to newspaper... newspaper prospectus means an advertisement of securities in newspapers, magazines or other periodicals...

  1. 2 CFR 230.5 - Purpose.

    Science.gov (United States)

    2010-01-01

    ... 2 Grants and Agreements 1 2010-01-01 2010-01-01 false Purpose. 230.5 Section 230.5 Grants and Agreements OFFICE OF MANAGEMENT AND BUDGET CIRCULARS AND GUIDANCE Reserved COST PRINCIPLES FOR NON-PROFIT... grants, contracts and other agreements with non-profit organizations....

  2. 23 CFR 230.203 - Policy.

    Science.gov (United States)

    2010-04-01

    ... 23 Highways 1 2010-04-01 2010-04-01 false Policy. 230.203 Section 230.203 Highways FEDERAL HIGHWAY ADMINISTRATION, DEPARTMENT OF TRANSPORTATION CIVIL RIGHTS EXTERNAL PROGRAMS Supportive Services for Minority... participation of minority business enterprises in Federal-aid highway contracts in part through the...

  3. 23 CFR 230.201 - Purpose.

    Science.gov (United States)

    2010-04-01

    ... HIGHWAY ADMINISTRATION, DEPARTMENT OF TRANSPORTATION CIVIL RIGHTS EXTERNAL PROGRAMS Supportive Services for Minority, Disadvantaged, and Women Business Enterprises § 230.201 Purpose. To prescribe the... programs for minority, disadvantaged, and women business enterprises....

  4. Dicty_cDB: CHP230 [Dicty_cDB

    Lifescience Database Archive (English)

    Full Text Available CH (Link to library) CHP230 (Link to dictyBase) - - - Contig-U16475-1 | Contig-U16524-1 CHP...230P (Link to Original site) CHP230F 235 CHP230Z 532 CHP230P 747 - - Show CHP230 Library CH (Link to library) Clone ID CHP...75-1 | Contig-U16524-1 Original site URL http://dictycdb.biol.tsukuba.ac.jp/CSM/CH/CHP2-B/CHP...230Q.Seq.d/ Representative seq. ID CHP230P (Link to Original site) Representative DNA sequence >CHP230 (CHP...230Q) /CSM/CH/CHP2-B/CHP230Q.Seq.d/ CTGTTGGCCTACTGGNAAAAACAACCATTTATTAATTTTTGTATGATTATTATAATTCAA

  5. Dicty_cDB: SSI230 [Dicty_cDB

    Lifescience Database Archive (English)

    Full Text Available SS (Link to library) SSI230 (Link to dictyBase) - G01247 DDB0187826 Contig-U11777-1 SSI...230E (Link to Original site) SSI230F 521 SSI230Z 583 SSI230P 1104 SSI230E 1071 Show SSI230 Library SS (L...ink to library) Clone ID SSI230 (Link to dictyBase) Atlas ID - NBRP ID G01247 dictyBase ID DDB0187826 Link t...o Contig Contig-U11777-1 Original site URL http://dictycdb.biol.tsukuba.ac.jp/CSM/SS/SSI2-B/SSI...230Q.Seq.d/ Representative seq. ID SSI230E (Link to Original site) Representative DNA sequence >SSI230 (SSI

  6. 17 CFR 230.425 - Filing of certain prospectuses and communications under § 230.135 in connection with business...

    Science.gov (United States)

    2010-04-01

    ... and communications under § 230.135 in connection with business combination transactions. 230.425... and communications under § 230.135 in connection with business combination transactions. (a) All written communications made in reliance on § 230.165 are prospectuses that must be filed with the...

  7. 49 CFR 230.46 - Badge plates.

    Science.gov (United States)

    2010-10-01

    ... TRANSPORTATION STEAM LOCOMOTIVE INSPECTION AND MAINTENANCE STANDARDS Boilers and Appurtenances Steam Gauges § 230.46 Badge plates. A metal badge plate showing the allowed steam pressure shall be attached to the boiler backhead in the cab. If boiler backhead is lagged, the lagging and jacket shall be cut away...

  8. 49 CFR 230.43 - Gauge siphon.

    Science.gov (United States)

    2010-10-01

    ... TRANSPORTATION STEAM LOCOMOTIVE INSPECTION AND MAINTENANCE STANDARDS Boilers and Appurtenances Steam Gauges § 230.43 Gauge siphon. The steam gauge supply pipe shall have a siphon on it of ample capacity to prevent steam from entering the gauge. The supply pipe shall directly enter the boiler and be maintained...

  9. 49 CFR 230.35 - Pressure testing.

    Science.gov (United States)

    2010-10-01

    ..., DEPARTMENT OF TRANSPORTATION STEAM LOCOMOTIVE INSPECTION AND MAINTENANCE STANDARDS Boilers and Appurtenances Pressure Testing of Boilers § 230.35 Pressure testing. The temperature of the steam locomotive boiler shall be raised to at least 70 deg. F any time hydrostatic pressure is applied to the boiler....

  10. 49 CFR 230.59 - Fusible plugs.

    Science.gov (United States)

    2010-10-01

    ..., DEPARTMENT OF TRANSPORTATION STEAM LOCOMOTIVE INSPECTION AND MAINTENANCE STANDARDS Boilers and Appurtenances Fusible Plugs § 230.59 Fusible plugs. If boilers are equipped with fusible plugs, the plugs shall be removed and cleaned of scale each time the boiler is washed but not less frequently than during every...

  11. 49 CFR 230.39 - Broken staybolts.

    Science.gov (United States)

    2010-10-01

    ..., DEPARTMENT OF TRANSPORTATION STEAM LOCOMOTIVE INSPECTION AND MAINTENANCE STANDARDS Boilers and Appurtenances Staybolts § 230.39 Broken staybolts. (a) Maximum allowable number of broken staybolts. No boiler shall be... inside the firebox or combustion chamber on a straight line. No boiler shall be allowed to remain...

  12. 23 CFR 230.202 - Definitions.

    Science.gov (United States)

    2010-04-01

    ... disadvantaged business enterprise (DBE), all defined under 49 CFR part 23. This expanded definition is used only... businesses active in the highway program and contribute to the growth and eventual self-sufficiency of... for Minority, Disadvantaged, and Women Business Enterprises § 230.202 Definitions. (a)...

  13. 2 CFR 230.15 - Policy.

    Science.gov (United States)

    2010-01-01

    ... Agreements OFFICE OF MANAGEMENT AND BUDGET CIRCULARS AND GUIDANCE Reserved COST PRINCIPLES FOR NON-PROFIT ORGANIZATIONS (OMB CIRCULAR A-122) § 230.15 Policy. The principles are designed to provide that the Federal Government bear its fair share of costs except where restricted or prohibited by law. The principles do not...

  14. 43 CFR 41.230 - Transition plans.

    Science.gov (United States)

    2010-10-01

    ... Public Lands: Interior Office of the Secretary of the Interior NONDISCRIMINATION ON THE BASIS OF SEX IN EDUCATION PROGRAMS OR ACTIVITIES RECEIVING FEDERAL FINANCIAL ASSISTANCE Coverage § 41.230 Transition plans... one administratively separate unit may submit either a single transition plan applicable to all...

  15. 40 CFR 5.230 - Transition plans.

    Science.gov (United States)

    2010-07-01

    ... Protection of Environment ENVIRONMENTAL PROTECTION AGENCY GENERAL NONDISCRIMINATION ON THE BASIS OF SEX IN EDUCATION PROGRAMS OR ACTIVITIES RECEIVING FEDERAL FINANCIAL ASSISTANCE Coverage § 5.230 Transition plans... one administratively separate unit may submit either a single transition plan applicable to all...

  16. 28 CFR 54.230 - Transition plans.

    Science.gov (United States)

    2010-07-01

    ... Judicial Administration DEPARTMENT OF JUSTICE (CONTINUED) NONDISCRIMINATION ON THE BASIS OF SEX IN EDUCATION PROGRAMS OR ACTIVITIES RECEIVING FEDERAL FINANCIAL ASSISTANCE Coverage § 54.230 Transition plans... one administratively separate unit may submit either a single transition plan applicable to all...

  17. 6 CFR 17.230 - Transition plans.

    Science.gov (United States)

    2010-01-01

    ... Security DEPARTMENT OF HOMELAND SECURITY, OFFICE OF THE SECRETARY NONDISCRIMINATION ON THE BASIS OF SEX IN EDUCATION PROGRAMS OR ACTIVITIES RECEIVING FEDERAL FINANCIAL ASSISTANCE Coverage § 17.230 Transition plans... one administratively separate unit may submit either a single transition plan applicable to all...

  18. 31 CFR 28.230 - Transition plans.

    Science.gov (United States)

    2010-07-01

    ... OF SEX IN EDUCATION PROGRAMS OR ACTIVITIES RECEIVING FEDERAL FINANCIAL ASSISTANCE Coverage § 28.230... more than one administratively separate unit may submit either a single transition plan applicable to... order to be approved by the Secretary of Education, a transition plan shall: (1) State the name,...

  19. 14 CFR 1253.230 - Transition plans.

    Science.gov (United States)

    2010-01-01

    ... Aeronautics and Space NATIONAL AERONAUTICS AND SPACE ADMINISTRATION NONDISCRIMINATION ON THE BASIS OF SEX IN EDUCATION PROGRAMS OR ACTIVITIES RECEIVING FEDERAL FINANCIAL ASSISTANCE Coverage § 1253.230 Transition plans... one administratively separate unit may submit either a single transition plan applicable to all...

  20. 15 CFR 8a.230 - Transition plans.

    Science.gov (United States)

    2010-01-01

    ... SEX IN EDUCATION PROGRAMS OR ACTIVITIES RECEIVING FEDERAL FINANCIAL ASSISTANCE Coverage § 8a.230... more than one administratively separate unit may submit either a single transition plan applicable to... order to be approved by the Secretary of Education, a transition plan shall: (1) State the name,...

  1. 17 CFR 230.252 - Offering statement.

    Science.gov (United States)

    2010-04-01

    ..., language and pagination. The requirements for offering statements are the same as those specified in § 230... Officer, a majority of the members of its board of directors or other governing body, and each selling... that contains the following language: This offering statement shall become qualified on the...

  2. Observation of exotic nuclear decay of 230U

    Institute of Scientific and Technical Information of China (English)

    2003-01-01

    230Pa was produced through the 232Th(p,3n)230Pa reaction in the irradiated ThO2 powder targets with 35 MeV proton beam. Pa was radiochemically separated from ThO2 and other reaction products, and then thin sources of 230Paβ-230U were prepared. The polyethylene-terephthalate (lavsan) films were selected as solid track detector searching for the cluster activity of 230U. The gamma activity of 230Pa in the sources was measured using a HPGe detector. The lavsan films were etched in NaOH solution and the etched films were scanned under an optical microscope. The exotic nuclear decay of 230U by emission of 22Ne was observed. A branching ratio relative to α decay was deduced, B =λNe/λα= (1.3±0.8)×10-14 for 22Ne emission from 230U.

  3. 29 CFR 779.230 - Franchise and other arrangements.

    Science.gov (United States)

    2010-07-01

    ... 29 Labor 3 2010-07-01 2010-07-01 false Franchise and other arrangements. 779.230 Section 779.230... Coverage Leased Departments, Franchise and Other Business Arrangements § 779.230 Franchise and other.... The quotation in § 779.229 from the Senate Report shows that Congress recognized that some...

  4. 49 CFR 230.30 - Lap-joint seam boilers.

    Science.gov (United States)

    2010-10-01

    ... 49 Transportation 4 2010-10-01 2010-10-01 false Lap-joint seam boilers. 230.30 Section 230.30..., DEPARTMENT OF TRANSPORTATION STEAM LOCOMOTIVE INSPECTION AND MAINTENANCE STANDARDS Boilers and Appurtenances Inspection and Repair § 230.30 Lap-joint seam boilers. Every boiler having lap-joint longitudinal...

  5. 49 CFR 230.57 - Injectors and feedwater pumps.

    Science.gov (United States)

    2010-10-01

    ... 49 Transportation 4 2010-10-01 2010-10-01 false Injectors and feedwater pumps. 230.57 Section 230... Appurtenances Injectors, Feedwater Pumps, and Flue Plugs § 230.57 Injectors and feedwater pumps. (a) Water.... Injectors and feedwater pumps must be kept in good condition, free from scale, and must be tested at...

  6. 49 CFR 230.77 - Foundation brake gear.

    Science.gov (United States)

    2010-10-01

    ... 49 Transportation 4 2010-10-01 2010-10-01 false Foundation brake gear. 230.77 Section 230.77... Tenders Brake and Signal Equipment § 230.77 Foundation brake gear. (a) Maintenance. Foundation brake gear...) Distance above the rails. No part of the foundation brake gear of the steam locomotive or tender shall...

  7. 49 CFR 230.115 - Feed water tanks.

    Science.gov (United States)

    2010-10-01

    ... 49 Transportation 4 2010-10-01 2010-10-01 false Feed water tanks. 230.115 Section 230.115... Tenders Steam Locomotive Tanks § 230.115 Feed water tanks. (a) General provisions. Tanks shall be... for tank wells or tank hose and shall be maintained in a manner that allows the unobstructed flow...

  8. 49 CFR 230.21 - Steam locomotive number change.

    Science.gov (United States)

    2010-10-01

    ... 49 Transportation 4 2010-10-01 2010-10-01 false Steam locomotive number change. 230.21 Section 230... Recordkeeping Requirements § 230.21 Steam locomotive number change. When a steam locomotive number is changed, the steam locomotive owner and/or operator must reflect the change in the upper right-hand corner...

  9. 49 CFR 230.56 - Water glass lamps.

    Science.gov (United States)

    2010-10-01

    ... 49 Transportation 4 2010-10-01 2010-10-01 false Water glass lamps. 230.56 Section 230.56... Water Glasses and Gauge Cocks § 230.56 Water glass lamps. All water glasses must be supplied with a suitable lamp properly located to enable the engine crew to easily see the water in the glass. Injectors...

  10. 49 CFR 230.52 - Water glass valves.

    Science.gov (United States)

    2010-10-01

    ... 49 Transportation 4 2010-10-01 2010-10-01 false Water glass valves. 230.52 Section 230.52... Water Glasses and Gauge Cocks § 230.52 Water glass valves. All water glasses shall be equipped with no more than two valves capable of isolating the water glass from the boiler. They shall also be equipped...

  11. 40 CFR 86.230-11 - Test sequence: general requirements.

    Science.gov (United States)

    2010-07-01

    ... 40 Protection of Environment 18 2010-07-01 2010-07-01 false Test sequence: general requirements. 86.230-11 Section 86.230-11 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) AIR... New Medium-Duty Passenger Vehicles; Cold Temperature Test Procedures § 86.230-11 Test...

  12. 40 CFR 86.230-94 - Test sequence: general requirements.

    Science.gov (United States)

    2010-07-01

    ... 40 Protection of Environment 18 2010-07-01 2010-07-01 false Test sequence: general requirements. 86.230-94 Section 86.230-94 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) AIR... New Medium-Duty Passenger Vehicles; Cold Temperature Test Procedures § 86.230-94 Test...

  13. 49 CFR 230.112 - Wheels and tires.

    Science.gov (United States)

    2010-10-01

    ... 49 Transportation 4 2010-10-01 2010-10-01 false Wheels and tires. 230.112 Section 230.112... Tenders Wheels and Tires § 230.112 Wheels and tires. (a) Mounting. Wheels shall be securely mounted on... wheels mounted on the same axle shall not vary more than 1/4 inch. (d) Tire thickness. Wheels may...

  14. 46 CFR 126.230 - How to obtain or renew.

    Science.gov (United States)

    2010-10-01

    ... 46 Shipping 4 2010-10-01 2010-10-01 false How to obtain or renew. 126.230 Section 126.230 Shipping... CERTIFICATION Certificate of Inspection § 126.230 How to obtain or renew. (a) A builder, owner, master, or operator may begin to obtain or to renew a Certificate of Inspection by submitting an “Application...

  15. 40 CFR 230.74 - Actions related to technology.

    Science.gov (United States)

    2010-07-01

    ... 40 Protection of Environment 24 2010-07-01 2010-07-01 false Actions related to technology. 230.74 Section 230.74 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) OCEAN DUMPING SECTION... Minimize Adverse Effects § 230.74 Actions related to technology. Discharge technology should be adapted to...

  16. 23 CFR 230.206 - Monitoring supportive services.

    Science.gov (United States)

    2010-04-01

    ... 23 Highways 1 2010-04-01 2010-04-01 false Monitoring supportive services. 230.206 Section 230.206 Highways FEDERAL HIGHWAY ADMINISTRATION, DEPARTMENT OF TRANSPORTATION CIVIL RIGHTS EXTERNAL PROGRAMS Supportive Services for Minority, Disadvantaged, and Women Business Enterprises § 230.206...

  17. 49 CFR 230.107 - Tender frame and body.

    Science.gov (United States)

    2010-10-01

    ... 49 Transportation 4 2010-10-01 2010-10-01 false Tender frame and body. 230.107 Section 230.107... Tenders Trucks, Frames and Equalizing System § 230.107 Tender frame and body. (a) Maintenance. Tender... repaired: (1) Portions of the tender frame or body (except wheels) that have less than a 21/2...

  18. 49 CFR 230.24 - Maximum allowable stress.

    Science.gov (United States)

    2010-10-01

    ... 49 Transportation 4 2010-10-01 2010-10-01 false Maximum allowable stress. 230.24 Section 230.24... Allowable Stress § 230.24 Maximum allowable stress. (a) Maximum allowable stress value. The maximum allowable stress value on any component of a steam locomotive boiler shall not exceed 1/4 of the ultimate...

  19. Determination for β-delayed fission probability of 230Ac

    Institute of Scientific and Technical Information of China (English)

    袁双贵; 杨维凡; 徐岩冰; 肖永厚; 罗亦孝

    2002-01-01

    The 230Ra has been produced via 232Th-2p reaction induced by 60 MeV/u 18O ion irradia-tion of natural thorium. The radium was radiochemically separated from the mixture of thorium andreaction products. Thin Ra sources in which 230Ac was got through 230Ra β- → 230Ac were pre-pared for observing fission fragments from β-delayed fission of 230Ac. The sources were exposedto the mica fission track detectors and measured by the HPGe γ detector. The precursor 230Ac wasidentified by means of observed two fission events as well as γ spectra, and the β-delayed fissionprobability of 230Ac was obtained to be (1.19±0.85) × 10-8.

  20. A precursor of β-delayed fission:230Ac

    Institute of Scientific and Technical Information of China (English)

    2002-01-01

    The 230Ra has been produced via multinucleon transfer and dissipativefragmentation of heavy target in the 60 MeV/u 18O ion reaction with natural thorium.The radium was radiochemically separated from irradiated thorium targets. 230Acwas obtained by 230Ra β-→ 230Ac. Thin Ra sources were prepared for observing fissionfragments from β-delayed fission of 230Ac. The sources were exposed to the micafission track detectors and measured by a HPGe γ detector. The two fission eventswere obtained and could been assigned to theβ-delayed fission of 230Ac. The β-delayedfission probability of 230Ac was determined to be (1.19+0.85) × 10-8.

  1. Determination of 230Th in soils; Determinacion de 230Th en suelos

    Energy Technology Data Exchange (ETDEWEB)

    Alvarez, A.; Palomares, J.

    1988-07-01

    A method for the determination of 230Th in environmental soils is described. Hydroxides formed, previous fusion with sodium peroxide are dissolved with HNO3 8N. The thorium is coprecipitated with F3La and purified by anion exchange (AG 1x8 50-100 mesh). Thorium is electroplated onto a stainless steel disc, 230xh is counted by alpha spectrometry and 234'fn u;;ed as tracer by beta counting. The chemical yield for 1g of soil sample is 60-80%. Minimum detectable activities are about 2 mBq/g.

  2. Determination of 230Th in soils; Determinacion de 230Th en suelos

    Energy Technology Data Exchange (ETDEWEB)

    Alvarez, A.; Palomares, J.

    1988-07-01

    A method for the determination of 230Th in environmental soils is described. Hydroxides formed, previous fusion with sodium peroxide are dissolved with HNO3 8N. The thorium is coprecipitated with F3La and purified by anion exchange (AG 1x8 50-100 mesh). Thorium is electroplated onto a stainless steel disc, 230xh is counted by alpha spectrometry and 234'fn u;;ed as tracer by beta counting. The chemical yield for 1g of soil sample is 60-80%. Minimum detectable activities are about 2 mBq/g.

  3. 40 CFR 230.51 - Recreational and commercial fisheries.

    Science.gov (United States)

    2010-07-01

    ... Potential Effects on Human Use Characteristics § 230.51 Recreational and commercial fisheries. (a... important aquatic species through disruption of migration and spawning areas. The introduction of...

  4. 49 CFR 230.36 - Hydrostatic testing of boilers.

    Science.gov (United States)

    2010-10-01

    ... ADMINISTRATION, DEPARTMENT OF TRANSPORTATION STEAM LOCOMOTIVE INSPECTION AND MAINTENANCE STANDARDS Boilers and Appurtenances Pressure Testing of Boilers § 230.36 Hydrostatic testing of boilers. (a) Time of test. The... 49 Transportation 4 2010-10-01 2010-10-01 false Hydrostatic testing of boilers. 230.36 Section...

  5. 49 CFR 230.66 - Design, construction, and maintenance.

    Science.gov (United States)

    2010-10-01

    ... 49 Transportation 4 2010-10-01 2010-10-01 false Design, construction, and maintenance. 230.66... Locomotives and Tenders § 230.66 Design, construction, and maintenance. The steam locomotive owner and operator are responsible for the general design, construction and maintenance of the steam locomotives...

  6. 49 CFR 230.26 - Tensile strength of shell plates.

    Science.gov (United States)

    2010-10-01

    ... 49 Transportation 4 2010-10-01 2010-10-01 false Tensile strength of shell plates. 230.26 Section... Appurtenances Strength of Materials § 230.26 Tensile strength of shell plates. When the tensile strength of steel or wrought-iron shell plates is not known, it shall be taken at 50,000 psi for steel and...

  7. 49 CFR 230.106 - Steam locomotive frame.

    Science.gov (United States)

    2010-10-01

    ... Tenders Trucks, Frames and Equalizing System § 230.106 Steam locomotive frame. (a) Maintenance and inspection. Frames, decks, plates, tailpieces, pedestals, and braces shall be maintained in a safe and... 49 Transportation 4 2010-10-01 2010-10-01 false Steam locomotive frame. 230.106 Section...

  8. 17 CFR 230.135a - Generic advertising.

    Science.gov (United States)

    2010-04-01

    ... 17 Commodity and Securities Exchanges 2 2010-04-01 2010-04-01 false Generic advertising. 230.135a... REGULATIONS, SECURITIES ACT OF 1933 General § 230.135a Generic advertising. (a) For the purposes only of section 5 of the Act, a notice, circular, advertisement, letter, sign, or other communication,...

  9. 34 CFR 668.230 - Scope and purpose.

    Science.gov (United States)

    2010-07-01

    ... 34 Education 3 2010-07-01 2010-07-01 false Scope and purpose. 668.230 Section 668.230 Education Regulations of the Offices of the Department of Education (Continued) OFFICE OF POSTSECONDARY EDUCATION, DEPARTMENT OF EDUCATION STUDENT ASSISTANCE GENERAL PROVISIONS Financial Assistance for Students...

  10. 17 CFR 230.610 - Suspension of exemption.

    Science.gov (United States)

    2010-04-01

    ... material fact necessary in order to make the statements made, in the light of the circumstances under which... specified in paragraph (b) of § 230.602 has been indicted for any crime or offense of the character... paragraph (b)(4); (6) Any person specified in paragraph (c) of § 230.602 has been indicted for any crime...

  11. 17 CFR 230.258 - Suspension of the exemption.

    Science.gov (United States)

    2010-04-01

    ... fact necessary in order to make the statements made, in light of the circumstances under which they are... specified in paragraph (a) of § 230.262 has been indicted for any crime or offense of the character... any crime or offense of the character specified in paragraph (b)(1) of § 230.262, or any...

  12. 36 CFR 230.3 - National program administration.

    Science.gov (United States)

    2010-07-01

    ... STATE AND PRIVATE FORESTRY ASSISTANCE Stewardship Incentive Program § 230.3 National program... Program funding to be made available for landowner forest stewardship plan development (§ 230.7(a)(1) of... Program participant information, the management of accounting ledgers, and the disbursement of payment...

  13. 42 CFR 457.230 - FFP for State ADP expenditures.

    Science.gov (United States)

    2010-10-01

    ... procedures regarding the availability of FFP for ADP expenditures are in 45 CFR part 74, 45 CFR part 95... 42 Public Health 4 2010-10-01 2010-10-01 false FFP for State ADP expenditures. 457.230 Section 457...; Reduction of Federal Medical Payments § 457.230 FFP for State ADP expenditures. FFP is available for...

  14. 23 CFR 230.205 - Supportive services funds obligation.

    Science.gov (United States)

    2010-04-01

    ... 23 Highways 1 2010-04-01 2010-04-01 false Supportive services funds obligation. 230.205 Section 230.205 Highways FEDERAL HIGHWAY ADMINISTRATION, DEPARTMENT OF TRANSPORTATION CIVIL RIGHTS EXTERNAL PROGRAMS Supportive Services for Minority, Disadvantaged, and Women Business Enterprises §...

  15. 17 CFR 230.502 - General conditions to be met.

    Science.gov (United States)

    2010-04-01

    ... advertising, including, but not limited to, the following: (1) Any advertisement, article, notice or other... 17 Commodity and Securities Exchanges 2 2010-04-01 2010-04-01 false General conditions to be met. 230.502 Section 230.502 Commodity and Securities Exchanges SECURITIES AND EXCHANGE COMMISSION...

  16. 49 CFR 230.101 - Steam locomotive driving journal boxes.

    Science.gov (United States)

    2010-10-01

    ... 49 Transportation 4 2010-10-01 2010-10-01 false Steam locomotive driving journal boxes. 230.101... Locomotives and Tenders Running Gear § 230.101 Steam locomotive driving journal boxes. (a) Driving journal boxes. Driving journal boxes shall be maintained in a safe and suitable condition for service. Not...

  17. 49 CFR 230.102 - Tender plain bearing journal boxes.

    Science.gov (United States)

    2010-10-01

    ... 49 Transportation 4 2010-10-01 2010-10-01 false Tender plain bearing journal boxes. 230.102... Locomotives and Tenders Running Gear § 230.102 Tender plain bearing journal boxes. Plain bearing journal boxes... expected to damage the bearing; or have a detrimental effect on the lubrication of the journal and...

  18. 49 CFR 230.103 - Tender roller bearing journal boxes.

    Science.gov (United States)

    2010-10-01

    ... 49 Transportation 4 2010-10-01 2010-10-01 false Tender roller bearing journal boxes. 230.103... Locomotives and Tenders Running Gear § 230.103 Tender roller bearing journal boxes. Tender roller bearing journal boxes shall be maintained in a safe and suitable condition....

  19. 17 CFR 230.156 - Investment company sales literature.

    Science.gov (United States)

    2010-04-01

    ... literature. 230.156 Section 230.156 Commodity and Securities Exchanges SECURITIES AND EXCHANGE COMMISSION... literature. (a) Under the federal securities laws, including section 17(a) of the Securities Act of 1933 (15... of any means or instrumentality of interstate commerce or of the mails, to use sales literature...

  20. 17 CFR 230.411 - Incorporation by reference.

    Science.gov (United States)

    2010-04-01

    ... this chapter) for registered offerings of asset-backed securities, or unless otherwise provided in the... 17 Commodity and Securities Exchanges 2 2010-04-01 2010-04-01 false Incorporation by reference. 230.411 Section 230.411 Commodity and Securities Exchanges SECURITIES AND EXCHANGE COMMISSION GENERAL...

  1. 17 CFR 230.426 - Filing of certain prospectuses under § 230.167 in connection with certain offerings of asset...

    Science.gov (United States)

    2010-04-01

    ... under § 230.167 in connection with certain offerings of asset-backed securities. 230.426 Section 230... under § 230.167 in connection with certain offerings of asset-backed securities. (a) All written... incorporated by reference to the related registration statement for the offering of asset-backed securities...

  2. Determination of specific activity of 230Th in uranium ore samples

    Institute of Scientific and Technical Information of China (English)

    2000-01-01

    A new method suitable for determining specific activity of 230Th in uranium ore samples is built. The method is characterized by adding the 230Th/ 232Th standard dilution agent with lower activity ratio (Its 230Th/ 232Th activity ratio and 230Th have been known) to the samples and using isotopic dilution analysis. The method can be applied to analyses of 230Th specific activity in various 230Th/ 232Th activity ratio samples. The precision can also be improved.

  3. 49 CFR 230.42 - Location of gauges.

    Science.gov (United States)

    2010-10-01

    ..., DEPARTMENT OF TRANSPORTATION STEAM LOCOMOTIVE INSPECTION AND MAINTENANCE STANDARDS Boilers and Appurtenances Steam Gauges § 230.42 Location of gauges. Every boiler shall have at least one steam gauge which...

  4. 49 CFR 230.44 - Time of testing.

    Science.gov (United States)

    2010-10-01

    ..., DEPARTMENT OF TRANSPORTATION STEAM LOCOMOTIVE INSPECTION AND MAINTENANCE STANDARDS Boilers and Appurtenances Steam Gauges § 230.44 Time of testing. Steam gauges shall be tested prior to being installed or...

  5. 49 CFR 230.51 - Number and location.

    Science.gov (United States)

    2010-10-01

    ..., DEPARTMENT OF TRANSPORTATION STEAM LOCOMOTIVE INSPECTION AND MAINTENANCE STANDARDS Boilers and Appurtenances Water Glasses and Gauge Cocks § 230.51 Number and location. Every boiler shall be equipped with at...

  6. 49 CFR 230.60 - Time of washing.

    Science.gov (United States)

    2010-10-01

    ..., DEPARTMENT OF TRANSPORTATION STEAM LOCOMOTIVE INSPECTION AND MAINTENANCE STANDARDS Boilers and Appurtenances Washing Boilers § 230.60 Time of washing. (a) Frequency of washing. All boilers shall thoroughly be washed... inspection. The date of the boiler wash shall be noted on the FRA Form No. 1 or FRA Form No. 3. (See...

  7. 49 CFR 230.45 - Method of testing.

    Science.gov (United States)

    2010-10-01

    ..., DEPARTMENT OF TRANSPORTATION STEAM LOCOMOTIVE INSPECTION AND MAINTENANCE STANDARDS Boilers and Appurtenances Steam Gauges § 230.45 Method of testing. Steam gauges shall be compared with an accurate test gauge or dead weight tester. While under test load at the MAWP of the boiler to which the gauge will be...

  8. 49 CFR 230.64 - Leaks under lagging.

    Science.gov (United States)

    2010-10-01

    ..., DEPARTMENT OF TRANSPORTATION STEAM LOCOMOTIVE INSPECTION AND MAINTENANCE STANDARDS Boilers and Appurtenances Steam Leaks § 230.64 Leaks under lagging. The steam locomotive owner and/or operator shall take out of service at once any boiler that has developed a leak under the lagging due to a crack in the shell, or...

  9. 49 CFR 230.31 - Flues to be removed.

    Science.gov (United States)

    2010-10-01

    ..., DEPARTMENT OF TRANSPORTATION STEAM LOCOMOTIVE INSPECTION AND MAINTENANCE STANDARDS Boilers and Appurtenances Inspection and Repair § 230.31 Flues to be removed. (a) Inspection of the boiler interior. During the 1472... inspecting the entire interior of the boiler and its bracing. After removing the flues, the steam...

  10. 49 CFR 230.48 - Number and capacity.

    Science.gov (United States)

    2010-10-01

    ..., DEPARTMENT OF TRANSPORTATION STEAM LOCOMOTIVE INSPECTION AND MAINTENANCE STANDARDS Boilers and Appurtenances Safety Relief Valves § 230.48 Number and capacity. (a) Number and capacity. Every boiler shall be... the fire in good, bright condition and all steam outlets closed. Additional safety relief...

  11. 9 CFR 354.230 - Equipment and utensils.

    Science.gov (United States)

    2010-01-01

    ... Section 354.230 Animals and Animal Products FOOD SAFETY AND INSPECTION SERVICE, DEPARTMENT OF AGRICULTURE... equipped with facilities for locking and sealing. (m) Freezing rooms should be adequately equipped to... constant as possible. Freezing room should be equipped with floor racks or pallets and fans to insure...

  12. 36 CFR 230.32 - National program administration.

    Science.gov (United States)

    2010-07-01

    ... environmental, economic, and social values and public benefits are derived from the program. (c) The Chief shall... organizations, with written approval by the State Forester. (h) Except as provided at § 230.34(d), no financial... improvements excludes practices and activities cost-shared with landowners through FLEP. (l) Funds may not...

  13. Vacuum Pre-designing for CYCIAE-230 Superconducting Cyclotron

    Institute of Scientific and Technical Information of China (English)

    ZHANG; Su-ping; PAN; Gao-feng; LI; Zhen-guo; QIN; Jiu-chang

    2015-01-01

    CYCIAE-230superconducting cyclotron has two separate vacuum system,one is for beam chamber,another is for cryostat.Beam chamber and cryostat shall maintain separate vacuum against atmospheric pressure.The pressure of pumps inlet is better than 1×10-4Pa and the

  14. 49 CFR Appendix D to Part 230 - Civil Penalty Schedule

    Science.gov (United States)

    2010-10-01

    ... properly report accident resulting from failure of steam locomotive boiler or part or appurtenance thereof..., delivery pipes, feed water pipes, tank hose, tank valves 2,500 5,000 (c) Failure to properly brace... center repairs 1,000 2,000 (d) Counterbalance maintenance 1,000 2,000 230.115Feed water tanks:...

  15. Design of RF system for CYCIAE-230 superconducting cyclotron

    Science.gov (United States)

    Yin, Zhiguo; Ji, Bin; Fu, Xiaoliang; Cao, Xuelong; Zhao, Zhenlu; Zhang, Tinajue

    2017-05-01

    The CYCIAE230 is a low-current, compact superconducting cyclotron designed for proton therapy. The Radio Frequency system consists of four RF cavities and applies second harmonic to accelerate beams. The driving power for the cavity system is estimated to be approximately 150 kW. The LLRF controller is a self-made device developed and tested at low power using a small-scale cavity model. In this paper, the resonator systems of an S.C. cyclotron in history are reviewed. Contrary to those RF systems, the cavities of the CYCIAE230 cyclotron connect two opposite dees. Two high-power RF windows are included in the system. Each window carries approximately 75 kW RF power from the driver to the cavities. Thus, the RF system for the CY-CIAE230 cyclotron is operated in driven push-pull mode. The two-way amplifier-coupler-cavity systems are operated with approximately the same amount of RF power but 180° out of phase compared with each other. The design, as well as the technical advantage and limitations of this operating mode, of the CYCIAE230 cyclotron RF system is analyzed.

  16. Schweizer Gesetze das Wesentliche der Schweizer Gesetzgebung in 230 Gesetztexten

    CERN Document Server

    Suisse

    1999-01-01

    Ce CD-Rom contient 230 textes représentant les plus importantes lois et ordonnances du Recueil systématique fédéral (RS) : Constitution fédérale, Code civil, Code des obligations, Code pénal ...

  17. 13 CFR 108.230 - Private Capital for NMVC Companies.

    Science.gov (United States)

    2010-01-01

    ... VENTURE CAPITAL (âNMVCâ) PROGRAM Qualifications for the NMVC Program Capitalizing A Nmvc Company § 108.230 Private Capital for NMVC Companies. (a) General. Private Capital means the contributed capital of a NMVC... 13 Business Credit and Assistance 1 2010-01-01 2010-01-01 false Private Capital for NMVC...

  18. 41 CFR 101-4.230 - Transition plans.

    Science.gov (United States)

    2010-07-01

    ... System FEDERAL PROPERTY MANAGEMENT REGULATIONS GENERAL 4-NONDISCRIMINATION ON THE BASIS OF SEX IN EDUCATION PROGRAMS OR ACTIVITIES RECEIVING FEDERAL FINANCIAL ASSISTANCE Coverage § 101-4.230 Transition... than one administratively separate unit may submit either a single transition plan applicable to...

  19. 2 CFR 230.45 - Relationship to previous issuance.

    Science.gov (United States)

    2010-01-01

    ... PRINCIPLES FOR NON-PROFIT ORGANIZATIONS (OMB CIRCULAR A-122) § 230.45 Relationship to previous issuance. (a... contains the information that was in Attachment C (non-profit organizations not subject to the Circular) to... agencies for non-profit organizations....

  20. 48 CFR 52.230-2 - Cost Accounting Standards.

    Science.gov (United States)

    2010-10-01

    ... 48 Federal Acquisition Regulations System 2 2010-10-01 2010-10-01 false Cost Accounting Standards....230-2 Cost Accounting Standards. As prescribed in 30.201-4(a), insert the following clause: Cost Accounting Standards (OCT 2010) (a) Unless the contract is exempt under 48 CFR 9903.201-1 and 9903.201-2, the...

  1. 40 CFR 230.94 - Planning and documentation.

    Science.gov (United States)

    2010-07-01

    ... confidential for business purposes, such as the exact location of a proposed mitigation site that has not yet... sustainability of the resource, including long-term financing mechanisms and the party responsible for long-term management. (See § 230.97(d).) (12) Adaptive management plan. A management strategy to address unforeseen...

  2. 23 CFR 230.207 - Sources of assistance.

    Science.gov (United States)

    2010-04-01

    ... FEDERAL HIGHWAY ADMINISTRATION, DEPARTMENT OF TRANSPORTATION CIVIL RIGHTS EXTERNAL PROGRAMS Supportive Services for Minority, Disadvantaged, and Women Business Enterprises § 230.207 Sources of assistance. It is the policy of the FHWA that all potential sources of assistance to minority business enterprises...

  3. 18 CFR 367.2300 - Account 230, Asset retirement obligations.

    Science.gov (United States)

    2010-04-01

    ... GAS ACT Balance Sheet Chart of Accounts Other Noncurrent Liabilities § 367.2300 Account 230, Asset... retirement obligations. 367.2300 Section 367.2300 Conservation of Power and Water Resources FEDERAL ENERGY REGULATORY COMMISSION, DEPARTMENT OF ENERGY REGULATIONS UNDER THE PUBLIC UTILITY HOLDING COMPANY ACT OF...

  4. 40 CFR 230.50 - Municipal and private water supplies.

    Science.gov (United States)

    2010-07-01

    ... 40 Protection of Environment 24 2010-07-01 2010-07-01 false Municipal and private water supplies... Potential Effects on Human Use Characteristics § 230.50 Municipal and private water supplies. (a) Municipal and private water supplies consist of surface water or ground water which is directed to the intake...

  5. 33 CFR 230.13 - Environmental Impact Statement (EIS).

    Science.gov (United States)

    2010-07-01

    ... 33 Navigation and Navigable Waters 3 2010-07-01 2010-07-01 false Environmental Impact Statement..., DEPARTMENT OF DEFENSE PROCEDURES FOR IMPLEMENTING NEPA § 230.13 Environmental Impact Statement (EIS). An EIS... issues and impacts. The transmittal letter to EPA as well as the cover sheet should clearly identify the...

  6. 230Th, 226Ra and 222Rn in abyssal sediments

    Science.gov (United States)

    Kadko, David

    1980-09-01

    A model that predicts the flux of 222Rn out of deep-sea sediment is presented. The radon is ultimately generated by 230Th which is stripped from the overlying water into the sediment. Data from many authors are compared with the model predictions. It is shown that the continental contribution of ionium is not significant, and that at low sedimentation rates, biological mixing and erosional processes strongly affect the surface concentration of the ionium. Two cores from areas of slow sediment accumulation, one from a manganese nodule region of the central Pacific and one from the Rio Grande Rise in the Atlantic were analyzed at closely spaced intervals for 230Th, 226Ra, and 210Pb. The Pacific core displayed evidence of biological mixing down to 12 cm and had a sedimentation rate of only 0.04 cm/kyr. The Atlantic core seemed to be mixed to 8 cm and had a sedimentation rate of 0.07 cm/kyr. Both cores had less total excess 230Th than predicted. Radium sediment profiles are generated from the 230Th model. Adsorbed, dissolved, and solid-phase radium is considered. According to the model, diffusional losses of radium are especially important at low sedimentation rates. Any particulate, or excess radium input is ignored in this model. The model fits the two analyzed cores if the fraction of total radium available for adsorption-desorption is about 0.5-0.7, and if K, the distribution coefficient, is about 1000. Finally, the flux of radon out of the sediments is derived from the model-generated radium profiles. It is shown that the resulting standing crop of 222Rn in the overlying water may be considered as an added constraint in budgeting 230Th and 226Ra in deep-sea sediments.

  7. 20 CFR 1010.230 - In addition to the responsibilities of all recipients, do States and political subdivisions of...

    Science.gov (United States)

    2010-04-01

    ... implementing priority of service? 1010.230 Section 1010.230 Employees' Benefits OFFICE OF THE ASSISTANT... SERVICE FOR COVERED PERSONS Understanding Priority of Service § 1010.230 In addition to...

  8. Construction of recombinant ZNF230/GFP fused plasmids and their expression and cellular localization

    DEFF Research Database (Denmark)

    Xu, Wen-Ming; Zhang, Si-Zhong; Qiu, Wei-Min

    2004-01-01

    To use green fluorescent protein as a marker to study the localization of the fusion protein, the mutant full length cDNAs of human ZNF230 and mouse znf230 with their stop codon TGA changed to TGG were obtained by PCR amplification, and then cloned into pGEM-Teasy vector. After the double enzyme...... with high efficiency. When transfected with the constructed recombinant pEGFP-ZNF230 vector, the ZNF230 protein localizes mainly on the nucleus....

  9. 40 CFR 230.75 - Actions affecting plant and animal populations.

    Science.gov (United States)

    2010-07-01

    ... populations. 230.75 Section 230.75 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) OCEAN... Actions To Minimize Adverse Effects § 230.75 Actions affecting plant and animal populations. Minimization of adverse effects on populations of plants and animals can be achieved by: (a) Avoiding changes...

  10. 49 CFR 230.17 - One thousand four hundred seventy-two (1472) service day inspection.

    Science.gov (United States)

    2010-10-01

    ... 49 Transportation 4 2010-10-01 2010-10-01 false One thousand four hundred seventy-two (1472) service day inspection. 230.17 Section 230.17 Transportation Other Regulations Relating to Transportation... MAINTENANCE STANDARDS General General Inspection Requirements § 230.17 One thousand four hundred seventy-two...

  11. 17 CFR 230.145 - Reclassification of securities, mergers, consolidations and acquisitions of assets.

    Science.gov (United States)

    2010-04-01

    ..., mergers, consolidations and acquisitions of assets. 230.145 Section 230.145 Commodity and Securities... § 230.145 Reclassification of securities, mergers, consolidations and acquisitions of assets.... A statutory merger or consolidation or similar plan or acquisition in which securities of...

  12. 40 CFR 230.73 - Actions affecting the method of dispersion.

    Science.gov (United States)

    2010-07-01

    ... 40 Protection of Environment 24 2010-07-01 2010-07-01 false Actions affecting the method of dispersion. 230.73 Section 230.73 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) OCEAN... Actions To Minimize Adverse Effects § 230.73 Actions affecting the method of dispersion. The effects of a...

  13. 20 CFR 666.230 - How does the Department determine the amounts for Incentive Grant awards?

    Science.gov (United States)

    2010-04-01

    ... for Incentive Grant awards? 666.230 Section 666.230 Employees' Benefits EMPLOYMENT AND TRAINING... Incentives and Sanctions for State Performance § 666.230 How does the Department determine the amounts for..., established under § 666.205(a), for the latest State performance progress report providing the...

  14. 33 CFR 96.230 - What objectives must a safety management system meet?

    Science.gov (United States)

    2010-07-01

    ... MANAGEMENT SYSTEMS Company and Vessel Safety Management Systems § 96.230 What objectives must a safety... 33 Navigation and Navigable Waters 1 2010-07-01 2010-07-01 false What objectives must a safety management system meet? 96.230 Section 96.230 Navigation and Navigable Waters COAST GUARD, DEPARTMENT...

  15. 49 CFR 230.108 - Steam locomotive leading and trailing trucks.

    Science.gov (United States)

    2010-10-01

    ... 49 Transportation 4 2010-10-01 2010-10-01 false Steam locomotive leading and trailing trucks. 230.108 Section 230.108 Transportation Other Regulations Relating to Transportation (Continued) FEDERAL... Steam Locomotives and Tenders Trucks, Frames and Equalizing System § 230.108 Steam locomotive leading...

  16. Spermatogenesis-related ring finger gene ZNF230 promoter: identification and functional analysis

    DEFF Research Database (Denmark)

    Xu, Wenming; Zhang, Sizhong; Qiu, Weimin

    2009-01-01

    The ZNF230 gene is a recently cloned gene which is transcribed only in fertile male testes and may be related to human spermatogenesis. To characterize the multiple stage-specific transcription elements necessary for ZNF230 expression, we cloned ZNF230 promoter and constructed chimeric luciferase...

  17. 40 CFR 230.60 - General evaluation of dredged or fill material.

    Science.gov (United States)

    2010-07-01

    ... Evaluation and Testing § 230.60 General evaluation of dredged or fill material. The purpose of these... 40 Protection of Environment 24 2010-07-01 2010-07-01 false General evaluation of dredged or fill material. 230.60 Section 230.60 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) OCEAN...

  18. 48 CFR 52.230-5 - Cost Accounting Standards-Educational Institution.

    Science.gov (United States)

    2010-10-01

    ...-Educational Institution. 52.230-5 Section 52.230-5 Federal Acquisition Regulations System FEDERAL ACQUISITION... Clauses 52.230-5 Cost Accounting Standards—Educational Institution. As prescribed in 30.201-4(e), insert the following clause: Cost Accounting Standards—Educational Institution (OCT 2010) (a) Unless...

  19. 28 CFR 2.30 - False information or new criminal conduct: Discovery after release.

    Science.gov (United States)

    2010-07-01

    ...: Discovery after release. 2.30 Section 2.30 Judicial Administration DEPARTMENT OF JUSTICE PAROLE, RELEASE, SUPERVISION AND RECOMMITMENT OF PRISONERS, YOUTH OFFENDERS, AND JUVENILE DELINQUENTS United States Code Prisoners and Parolees § 2.30 False information or new criminal conduct: Discovery after release. If...

  20. 48 CFR 52.230-7 - Proposal Disclosure-Cost Accounting Practice Changes.

    Science.gov (United States)

    2010-10-01

    ... Provisions and Clauses 52.230-7 Proposal Disclosure—Cost Accounting Practice Changes. As prescribed in 30.201-3(c), insert the following provision: Proposal Disclosure—Cost Accounting Practice Changes (APR 2005... Accounting Practice Changes. 52.230-7 Section 52.230-7 Federal Acquisition Regulations System...

  1. 17 CFR 230.190 - Registration of underlying securities in asset-backed securities transactions.

    Science.gov (United States)

    2010-04-01

    ... securities in asset-backed securities transactions. 230.190 Section 230.190 Commodity and Securities... § 230.190 Registration of underlying securities in asset-backed securities transactions. (a) In an offering of asset-backed securities where the asset pool includes securities of another issuer (“underlying...

  2. 17 CFR 230.424 - Filing of prospectuses, number of copies.

    Science.gov (United States)

    2010-04-01

    ... asset-backed securities on a delayed basis under § 230.415(a)(1)(x) that is required to be filed... 17 Commodity and Securities Exchanges 2 2010-04-01 2010-04-01 false Filing of prospectuses, number of copies. 230.424 Section 230.424 Commodity and Securities Exchanges SECURITIES AND EXCHANGE...

  3. 40 CFR 421.230 - Applicability: Description of the primary nickel and cobalt subcategory.

    Science.gov (United States)

    2010-07-01

    ... primary nickel and cobalt subcategory. 421.230 Section 421.230 Protection of Environment ENVIRONMENTAL... CATEGORY Primary Nickel and Cobalt Subcategory § 421.230 Applicability: Description of the primary nickel and cobalt subcategory. The provisions of this subpart are applicable to discharges resulting from the...

  4. Mars at Ls 230o: Elysium/Mare Cimmerium

    Science.gov (United States)

    2005-01-01

    28 June 2005 This picture is a composite of Mars Global Surveyor (MGS) Mars Orbiter Camera (MOC) daily global images acquired at Ls 230o during a previous Mars year. This month, Mars looks similar, as Ls 230o occurred in mid-June 2005. The picture shows the Elysium/Mare Cimmerium face of Mars. Over the course of the month, additional faces of Mars as it appears at this time of year are being posted for MOC Picture of the Day. Ls, solar longitude, is a measure of the time of year on Mars. Mars travels 360o around the Sun in 1 Mars year. The year begins at Ls 0o, the start of northern spring and southern autumn. Season Northern Autumn/Southern Spring

  5. Dicty_cDB: AFL230 [Dicty_cDB

    Lifescience Database Archive (English)

    Full Text Available im test: 0 Number of HSP's gapped (non-prelim): 0 length of query: 247 length of database: 80,480,566 effective HSP length: 17 effect...ive length of query: 230 effective length of database: 78,821,179 effective search space: 18128871170 effect...h of database: Z,316,359,891 effective HSP length: 22 effective length of query: 225 effective length of database: Y,489,630,911 effe...ctive search space: 9335166954975 effective search space used: 9335166954975 T: 0 A...ive search space used: 18128871170 T: 0 A: 0 X1: 6 (11.9

  6. Distribution of Th-230 and Th-228 in food (I)

    Energy Technology Data Exchange (ETDEWEB)

    Kang, Hee Dong; Kim, Wan; Lim, X. J.; Choi, M. S.; Kim, C. J.; Zheng, Y. Z. [Kyungpook National Univ., Daegu (Korea, Republic of); Kim, Do Sung [Daegu Univ., Daegu (Korea, Republic of)

    2003-03-15

    Natural radioisotopes contained in foods can enter the human body by ingestion and contribute to internal doses to the population. It is necessary to measure the concentration of natural radioisotopes especially thorium in Korean foods and estimate the internal doses. In this study, we have established the thorium measuring process based on the thorium extraction chemical process and alpha spectroscopic method. The concentration of Th-228, Th-230 and Th-232 in Korean milk, meats(pork, beef and chicken) and grain (wheat, bean and rice) are measured and internal doses are estimated.

  7. Spectroscopy of 230Th in the (p,t) reaction

    CERN Document Server

    Levon, A I; Eisermann, Y; Hertenberger, R; Jolie, J; Shirikova, N Yu; Stuchbery, A E; Sushkov, A V; Thirolf, P G; Wirth, H -F; Zamfir, N V; 10.1103/PhysRevC.79.014318

    2009-01-01

    The excitation spectra in the deformed nucleus 230Th were studied by means of the (p,t) reaction, using the Q3D spectrograph facility at the Munich Tandem accelerator. The angular distributions of tritons are measured for about 200 excitations seen in the triton spectra up to 3.3 MeV. Firm 0+ assignments are made for 16 excited states by comparison of experimental angular distributions with the calculated ones using the CHUCK code. Additional assignments are possible: relatively firm for 4 states and tentative also for 4 states. Assignments up to spin $6^+$ are made for other states. Sequences of the states are selected which can be treated as rotational bands and as multiplets of excitations. Experimental data are compared with interacting boson model IBM) and quasiparticle-phonon model (QPM) calculations.

  8. Genome-wide patterns of selection in 230 ancient Eurasians

    Science.gov (United States)

    Mathieson, Iain; Lazaridis, Iosif; Rohland, Nadin; Mallick, Swapan; Patterson, Nick; Roodenberg, Songül Alpaslan; Harney, Eadaoin; Stewardson, Kristin; Fernandes, Daniel; Novak, Mario; Sirak, Kendra; Gamba, Cristina; Jones, Eppie R.; Llamas, Bastien; Dryomov, Stanislav; Pickrel, Joseph; Arsuaga, Juan Luís; de Castro, José María Bermúdez; Carbonell, Eudald; Gerritsen, Fokke; Khokhlov, Aleksandr; Kuznetsov, Pavel; Lozano, Marina; Meller, Harald; Mochalov, Oleg; Moiseyev, Vayacheslav; Rojo Guerra, Manuel A.; Roodenberg, Jacob; Vergès, Josep Maria; Krause, Johannes; Cooper, Alan; Alt, Kurt W.; Brown, Dorcas; Anthony, David; Lalueza-Fox, Carles; Haak, Wolfgang; Pinhasi, Ron; Reich, David

    2016-01-01

    Ancient DNA makes it possible to directly witness natural selection by analyzing samples from populations before, during and after adaptation events. Here we report the first scan for selection using ancient DNA, capitalizing on the largest genome-wide dataset yet assembled: 230 West Eurasians dating to between 6500 and 1000 BCE, including 163 with newly reported data. The new samples include the first genome-wide data from the Anatolian Neolithic culture whose genetic material we extracted from the DNA-rich petrous bone and who we show were members of the population that was the source of Europe’s first farmers. We also report a complete transect of the steppe region in Samara between 5500 and 1200 BCE that allows us to recognize admixture from at least two external sources into steppe populations during this period. We detect selection at loci associated with diet, pigmentation and immunity, and two independent episodes of selection on height. PMID:26595274

  9. Shielding measurements for a 230 MeV proton beam

    Energy Technology Data Exchange (ETDEWEB)

    Siebers, J.V.

    1990-01-01

    Energetic secondary neutrons produced as protons interact with accelerator components and patients dominate the radiation shielding environment for proton radiotherapy facilities. Due to the scarcity of data describing neutron production, attenuation, absorbed dose, and dose equivalent values, these parameters were measured for 230 MeV proton bombardment of stopping length Al, Fe, and Pb targets at emission angles of 0{degree}, 22{degree}, 45{degree}, and 90{degree} in a thick concrete shield. Low pressure tissue-equivalent proportional counters with volumes ranging from 1 cm{sup 3} to 1000 cm{sup 3} were used to obtain microdosimetric spectra from which absorbed dose and radiation quality are deduced. Does equivalent values and attenuation lengths determined at depth in the shield were found to vary sharply with angle, but were found to be independent of target material. Neutron dose and radiation length values are compared with Monte Carlo neutron transport calculations performed using the Los Alamos High Energy Transport Code (LAHET). Calculations used 230 MeV protons incident upon an Fe target in a shielding geometry similar to that used in the experiment. LAHET calculations overestimated measured attenuation values at 0{degree}, 22{degree}, and 45{degree}, yet correctly predicted the attenuation length at 90{degree}. Comparison of the mean radiation quality estimated with the Monte Carlo calculations with measurements suggest that neutron quality factors should be increased by a factor of 1.4. These results are useful for the shielding design of new facilities as well as for testing neutron production and transport calculations.

  10. 49 CFR 230.65 - Steam blocking view of engine crew.

    Science.gov (United States)

    2010-10-01

    ... ADMINISTRATION, DEPARTMENT OF TRANSPORTATION STEAM LOCOMOTIVE INSPECTION AND MAINTENANCE STANDARDS Boilers and Appurtenances Steam Leaks § 230.65 Steam blocking view of engine crew. The steam locomotive owner and/or... 49 Transportation 4 2010-10-01 2010-10-01 false Steam blocking view of engine crew. 230.65...

  11. 36 CFR 223.230 - Bid restriction on resale of incomplete contracts, permits, or other instruments.

    Science.gov (United States)

    2010-07-01

    ... 36 Parks, Forests, and Public Property 2 2010-07-01 2010-07-01 false Bid restriction on resale of incomplete contracts, permits, or other instruments. 223.230 Section 223.230 Parks, Forests, and Public Property FOREST SERVICE, DEPARTMENT OF AGRICULTURE SALE AND DISPOSAL OF NATIONAL FOREST SYSTEM...

  12. 40 CFR 158.230 - Experimental use permit data requirements for toxicology.

    Science.gov (United States)

    2010-07-01

    ... requirements for toxicology. 158.230 Section 158.230 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY... Experimental use permit data requirements for toxicology. All toxicology data, as described in paragraph (c) of...) Table. The following table shows the experimental use data requirements for toxicology. The test...

  13. 5 CFR 230.401 - Agency authority to take personnel actions in a national emergency disaster.

    Science.gov (United States)

    2010-01-01

    ... actions in a national emergency disaster. 230.401 Section 230.401 Administrative Personnel OFFICE OF... personnel actions in a national emergency disaster. (a) Upon an attack on the United States, agencies are... organizations during a period of disaster without regard to any regulation or instruction of OPM, except...

  14. 30 CFR 285.230 - May I request a lease if there is no Call?

    Science.gov (United States)

    2010-07-01

    ... 30 Mineral Resources 2 2010-07-01 2010-07-01 false May I request a lease if there is no Call? 285.230 Section 285.230 Mineral Resources MINERALS MANAGEMENT SERVICE, DEPARTMENT OF THE INTERIOR OFFSHORE... Call? You may submit an unsolicited request for a commercial lease or a limited lease under this...

  15. 13 CFR 147.230 - How and when must I identify workplaces?

    Science.gov (United States)

    2010-01-01

    ... 13 Business Credit and Assistance 1 2010-01-01 2010-01-01 false How and when must I identify workplaces? 147.230 Section 147.230 Business Credit and Assistance SMALL BUSINESS ADMINISTRATION... under each SBA award. A failure to do so is a violation of your drug-free workplace requirements....

  16. 17 CFR 230.154 - Delivery of prospectuses to investors at the same address.

    Science.gov (United States)

    2010-04-01

    ..., if the notice is delivered separately from other communications to investors, this statement may... investors at the same address. 230.154 Section 230.154 Commodity and Securities Exchanges SECURITIES AND... prospectuses to investors at the same address. (a) Delivery of a single prospectus. If you must deliver...

  17. 34 CFR 230.1 - What is the Troops-to-Teacher program?

    Science.gov (United States)

    2010-07-01

    ... teacher, secondary school teacher, or vocational/technical teacher and become a highly qualified teacher... 34 Education 1 2010-07-01 2010-07-01 false What is the Troops-to-Teacher program? 230.1 Section... SECONDARY EDUCATION, DEPARTMENT OF EDUCATION INNOVATION FOR TEACHER QUALITY Troops-to-Teachers Program § 230...

  18. 46 CFR 122.230 - Report of accident to aid to navigation.

    Science.gov (United States)

    2010-10-01

    ... 46 Shipping 4 2010-10-01 2010-10-01 false Report of accident to aid to navigation. 122.230 Section... Marine Casualties and Voyage Records § 122.230 Report of accident to aid to navigation. Whenever a vessel collides with a buoy, or other aid to navigation under the jurisdiction of the Coast Guard, or is...

  19. 46 CFR 185.230 - Report of accident to aid to navigation.

    Science.gov (United States)

    2010-10-01

    ... 46 Shipping 7 2010-10-01 2010-10-01 false Report of accident to aid to navigation. 185.230 Section 185.230 Shipping COAST GUARD, DEPARTMENT OF HOMELAND SECURITY (CONTINUED) SMALL PASSENGER VESSELS... aid to navigation. Whenever a vessel collides with a buoy, or other aid to navigation under...

  20. 21 CFR 107.230 - Elements of an infant formula recall.

    Science.gov (United States)

    2010-04-01

    ... 21 Food and Drugs 2 2010-04-01 2010-04-01 false Elements of an infant formula recall. 107.230... (CONTINUED) FOOD FOR HUMAN CONSUMPTION INFANT FORMULA Infant Formula Recalls § 107.230 Elements of an infant formula recall. A recalling firm shall conduct an infant formula recall with the following elements:...

  1. 2 CFR Appendix C to Part 230 - Non-Profit Organizations Not Subject to This Part

    Science.gov (United States)

    2010-01-01

    ... 2 Grants and Agreements 1 2010-01-01 2010-01-01 false Non-Profit Organizations Not Subject to This... GUIDANCE Reserved COST PRINCIPLES FOR NON-PROFIT ORGANIZATIONS (OMB CIRCULAR A-122) Pt. 230, App. C Appendix C to Part 230—Non-Profit Organizations Not Subject to This Part 1. Advance Technology...

  2. 40 CFR 436.230 - Applicability; description of the magnesite subcategory.

    Science.gov (United States)

    2010-07-01

    ... 40 Protection of Environment 29 2010-07-01 2010-07-01 false Applicability; description of the magnesite subcategory. 436.230 Section 436.230 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) EFFLUENT GUIDELINES AND STANDARDS MINERAL MINING AND PROCESSING POINT SOURCE CATEGORY...

  3. 49 CFR 1544.230 - Fingerprint-based criminal history records checks (CHRC): Flightcrew members.

    Science.gov (United States)

    2010-10-01

    ... 49 Transportation 9 2010-10-01 2010-10-01 false Fingerprint-based criminal history records checks (CHRC): Flightcrew members. 1544.230 Section 1544.230 Transportation Other Regulations Relating to Transportation (Continued) TRANSPORTATION SECURITY ADMINISTRATION, DEPARTMENT OF HOMELAND SECURITY CIVIL AVIATION SECURITY AIRCRAFT OPERATOR...

  4. 17 CFR 230.146 - Rules under section 18 of the Act.

    Science.gov (United States)

    2010-04-01

    ... 17 Commodity and Securities Exchanges 2 2010-04-01 2010-04-01 false Rules under section 18 of the Act. 230.146 Section 230.146 Commodity and Securities Exchanges SECURITIES AND EXCHANGE COMMISSION...) of the Commodity Exchange Act (7 U.S.C. 1a(12)) as in effect on the date of adoption of this section...

  5. 49 CFR 230.100 - Defects in tender truck axles and journals.

    Science.gov (United States)

    2010-10-01

    ... 49 Transportation 4 2010-10-01 2010-10-01 false Defects in tender truck axles and journals. 230... Steam Locomotives and Tenders Running Gear § 230.100 Defects in tender truck axles and journals. (a... wheel seats that is more than 1/8 of an inch in depth. (b) Tender truck journal condemning...

  6. 47 CFR 10.230 - New CMS providers participation in CMAS.

    Science.gov (United States)

    2010-10-01

    ... 47 Telecommunication 1 2010-10-01 2010-10-01 false New CMS providers participation in CMAS. 10.230... Election to Participate in Commercial Mobile Alert System § 10.230 New CMS providers participation in CMAS. CMS providers who initiate service at a date after the election procedure provided for in §...

  7. 17 CFR 230.139a - Publications by brokers or dealers distributing asset-backed securities.

    Science.gov (United States)

    2010-04-01

    ... dealers distributing asset-backed securities. 230.139a Section 230.139a Commodity and Securities Exchanges... Publications by brokers or dealers distributing asset-backed securities. The publication or distribution by a broker or dealer of information, an opinion or a recommendation with respect to asset-backed securities...

  8. 25 CFR 171.230 - What are my responsibilities for wastewater?

    Science.gov (United States)

    2010-04-01

    ... 25 Indians 1 2010-04-01 2010-04-01 false What are my responsibilities for wastewater? 171.230... OPERATION AND MAINTENANCE Irrigation Service § 171.230 What are my responsibilities for wastewater? (a) You are responsible for your wastewater. (b) Wastewater may be returned to our facilities, but only...

  9. Efficacy of 230Th normalization in sediments from the Juan de Fuca Ridge, northeast Pacific Ocean

    Science.gov (United States)

    Costa, Kassandra; McManus, Jerry

    2017-01-01

    230Th normalization is an indispensable method for reconstructing sedimentation rates and mass fluxes over time, but the validity of this approach has generated considerable debate in the paleoceanographic community. 230Th systematics have been challenged with regards to grain size bias, sediment composition (CaCO3), water column advection, and other processes. In this study, we investigate the consequences of these effects on 230Th normalization from a suite of six cores on the Juan de Fuca Ridge. The proximity of these cores (<30 km) suggests that they should receive the same particle rain rate of sediment, but the steep bathymetry of the ridge leads to substantial sediment redistribution and variable carbonate preservation, both of which may limit the usage of 230Th in this region. Despite anticipated complications, 230Th normalization effectively reconstructs nearly identical particle rain rates from all six cores, which are summarily unrelated to the total sedimentation rates as calculated from the age models. Instead the total sedimentation rates are controlled almost entirely by sediment focusing and winnowing, which are highly variable even over the short spatial scales investigated in this study. Furthermore, no feedbacks on 230Th systematics were detected as a consequence of sediment focusing, coarse fraction variability, or calcium carbonate content, supporting the robustness of the 230Th normalization technique.

  10. 75 FR 9573 - Minnkota Power Cooperative, Inc: Bemidji-Grand Rapids 230kV Transmission Project

    Science.gov (United States)

    2010-03-03

    ... Rural Utilities Service Minnkota Power Cooperative, Inc: Bemidji-Grand Rapids 230kV Transmission Project... Minnkota Power Cooperative, Inc (Minnkota) for the construction of a 230 kilovolt (kV) kV transmission line... Minnesota Power, proposes to construct and operate a 230 kV transmission line between the Wilton...

  11. 17 CFR 230.1001 - Exemption for transactions exempt from qualification under § 25102(n) of the California...

    Science.gov (United States)

    2010-04-01

    ... exempt from qualification under § 25102(n) of the California Corporations Code. 230.1001 Section 230... Exempt Under State Law § 230.1001 Exemption for transactions exempt from qualification under § 25102(n... provisions of the Act. In such cases, registration under the Act is required. (a) Exemption. Offers and...

  12. 29 CFR 553.230 - Maximum hours standards for work periods of 7 to 28 days-section 7(k).

    Science.gov (United States)

    2010-07-01

    ...-section 7(k). 553.230 Section 553.230 Labor Regulations Relating to Labor (Continued) WAGE AND HOUR... Compensation Rules § 553.230 Maximum hours standards for work periods of 7 to 28 days—section 7(k). (a) For... 28 consecutive days, no overtime compensation is required under section 7(k) until the number...

  13. Mechanisms of TL for production of the 230 {sup o}C peak in natural sodalite

    Energy Technology Data Exchange (ETDEWEB)

    Cano, Nilo F., E-mail: nilocano@dfn.if.usp.b [Institute of Physics, University of Sao Paulo, Rua do Matao, Travessa R, 187, CEP 05508-090, Sao Paulo (Brazil); Professional School of Physics, University of San Agustin of Arequipa, Av. Independencia S/N, Arequipa (Peru); Blak, Ana R. [Institute of Physics, University of Sao Paulo, Rua do Matao, Travessa R, 187, CEP 05508-090, Sao Paulo (Brazil); Ayala-Arenas, Jorge S. [Professional School of Physics, University of San Agustin of Arequipa, Av. Independencia S/N, Arequipa (Peru); Watanabe, Shigueo [Institute of Physics, University of Sao Paulo, Rua do Matao, Travessa R, 187, CEP 05508-090, Sao Paulo (Brazil)

    2011-02-15

    The thermoluminescence (TL) peak in natural sodalite near 230 {sup o}C, which appears only after submitted to thermal treatments and to gamma irradiation, has been studied in parallel with electron paramagnetic resonance (EPR) spectrum appearing under the same procedure. This study revealed a full correlation between the 230 {sup o}C TL peak and the eleven hyperfine lines from EPR spectrum. In both case, the centers disappear at the same temperature and are restored after gamma irradiation. A complete model for the 230 {sup o}C TL peak is presented and discussed. In addition to the correlation and TL model, specific characteristics of the TL peaks are described.

  14. Characteristics of malignant tumors in 230 husband-wife pairs.

    Science.gov (United States)

    Liu, Ju; Xu, Zhijian; Zhang, Kai; Li, Huai; Chang, Sheng; Bi, Xiaofeng; Dai, Min

    2014-09-01

    The aim of this study is to obtain a reference point for early detection of tumors in individuals whose spouses were diagnosed with malignant tumors. Data from 230 husband and wife pairs with malignant tumors were collected and analyzed from the family history records of 15,000 people who came to the Department of Cancer Prevention, Cancer Institute/Hospital, Chinese Academy of Medical Sciences for cancer screening between January 2009 and May 2012. The median diagnosis age was 67 years for husbands and 65 years for wives. A total of 214 cases (46.5 %) had digestive system malignancies. Respiratory system cancers were diagnosed in 64 husbands, of whom 20 (31.3 %) had spouses also with respiratory system cancer. Lung cancer ranked first for the females. The total number of lung cancer and commonly seen female-specific cancers (breast, ovarian, uterine, and cervical) was 127 (55.2 %). The difference in age at diagnosis between spouses was less than 10 years in 134 couples (58.3 %), while 77 (33.5 %) couples had an age difference less than 5 years. A family history of malignant tumors in first-degree relatives was documented in 48.3 % of the husbands and 48.7 % of the wives. The occurrence of cancer in both spouses of the couples studied resulted from an interaction between genetic and environmental factors. Nonhereditary factors such as diet, smoking, passive smoking, and air pollution also contributed to the development of cancers. It is recommended that when husband is diagnosed with cancer, the wife should be screened focusing on lung, breast, and gynecological cancers. If the wife was diagnosed with malignant disease, then screening for lung and digestive system cancers should be emphasized in the husband.

  15. 17 CFR 230.478 - Powers to amend or withdraw registration statement.

    Science.gov (United States)

    2010-04-01

    ... 8(b) of the act, waiving notice and hearing, such order being entered without prejudice to the right... COMMISSION GENERAL RULES AND REGULATIONS, SECURITIES ACT OF 1933 Amendments; Withdrawals § 230.478 Powers...

  16. Automatic Color Sorting Machine Using TCS230 Color Sensor And PIC Microcontroller

    OpenAIRE

    Kunhimohammed C K; Muhammed Saifudeen K K; Sahna S; Gokul M S; Shaeez Usman Abdulla

    2015-01-01

    Sorting of products is a very difficult industrial process. Continuous manual sorting creates consistency issues. This paper describes a working prototype designed for automatic sorting of objects based on the color. TCS230 sensor was used to detect the color of the product and the PIC16F628A microcontroller was used to control the overall process. The identification of the color is based on the frequency analysis of the output of TCS230 sensor. Two conveyor belts were used, each ...

  17. Improving the synthesis of phenolic polymer using Coprinus cinereus peroxidase mutant Phe230Ala.

    Science.gov (United States)

    Kim, Su Jin; Joo, Jeong Chan; Song, Bong Keun; Yoo, Young Je; Kim, Yong Hwan

    2016-06-01

    The F230A mutant of Coprinus cinereus peroxidase (CiP), which has a high stability against radical-inactivation, was previously reported. In the present study, the radical-robust F230A mutant was applied to the oxidative polymerization of phenol. The F230A mutant exhibited better polymerization activities than the wild-type CiP in the presence of water-miscible alcohols i.e., methanol, ethanol, and isopropanol despite its lower stability against alcohols. In particular, the F230A mutant showed a higher consumption of phenol (40%) and yielded phenolic polymer of larger molecular weight (8850Da) in a 50% (v/v) isopropanol-buffer mixture compared with the wild-type CiP (2% and 1519Da, respectively). In addition, the wild-type CiP and F230A mutant had no significant differences in enzyme inactivation by physical adsorption on the polymeric products or by heat incubation, and showed comparable kinetic parameters. These results indicate that high radical stability of the F230A mutant and improved solubility of phenolic polymers in alcohol-water cosolvent systems may synergistically contribute to the production of the high molecular weight phenolic polymer. Copyright © 2016 Elsevier Inc. All rights reserved.

  18. U-238 - Th-230 - Ra-226 disequilibria in volcanics: A new insight into melting conditions

    Science.gov (United States)

    Chabaux, Francois; Allegre, Claude J.

    1994-08-01

    Using new mass spectrometry techniques developed for the analysis of Ra isotopes, we present U-238 - Th-230 - Ra-226 disequilibria data from a variety of volcanic settings, and compare them with previously published data. Two correlations are observed with alkali volcanic data, one between (Th-230/U-238) and (Th-230/Ra-226) and another between the intensity of the disequilibria and the buoyancy flux of the underlying plume. These two correlations prove that partial melting is the major cause of U-Th-Ra fractionations in this volcanic context. The U-238 - Th-230 - Ra-226 disequilibria then place new constraints on some parameters of the classical melting models (batch melting and dynamic melting). The comparison of U-238 - Th-230 - Ra-226 disequilibria in alkali volcanics, carbonatites and subduction zones shows a clear parallel between the disequilibria value and the type of volcanic context. Such a parallel reflects the diversity of the conditions of magma generation, and shows that the U-238 - Th-230 - Ra-226 disequilibria systematics are very dependent on the chemical composition of liquids produced during magmatic processes. A systematic difference is observed between disequilibria in MORB and in alkali volcanics, which could indicate that the melting processes in these two volcanic contexts are very different.

  19. {sup 230}Th/U-dating of a late Holocene low uranium speleothem from Cuba

    Energy Technology Data Exchange (ETDEWEB)

    Fensterer, Claudia; Mangini, Augusta [Forschungsstelle Radiometrie, Heidelberg Academy of Sciences, Im Neuenheimer Feld 229, 69120 Heidelberg (Germany); Scholz, Denis; Hoffmann, Derik [School of Geographical Sciences, University of Bristol, University Road, BS8 1SS, Bristol (United Kingdom); Pajon, Jesus M, E-mail: Claudia.Fensterer@iup.uni-heidelberg.d [Department of Archaeology, Cuban Institute of Anthropology, Amargura No. 203, e/n Habana y Aguiar, Ciudad de La Habana, CP: 10 100 (Cuba)

    2010-03-15

    We present 22 U-series ages for a stalagmite from north-western Cuba based on multi-collector inductively coupled plasma mass spectrometry (MC-ICPMS) and thermal ionisation mass spectrometry (TIMS). Our results reveal that the stalagmite continuously grew within the last {approx}1400a. Low uranium content of the sample and thus, extremely low {sup 230}Th concentrations limit the precision and accuracy of {sup 230}Th/U-dating by TIMS. Samples measured by MC-ICPMS show a high variability of {sup 232}Th content along the growth axis with some sections significantly affected by initial {sup 230}Th from a detrital phase. An a-priori bulk earth ratio for ({sup 238}U/{sup 232}Th) cannot be used to accurately account for this initial {sup 230}Th. Using an age model based on the {sup 230}Th/U ages determined on samples with low or negligible {sup 232}Th concentration, we find that the ({sup 238}U/{sup 232}Th) activity ratio of the detrital phase is an order of magnitude larger than the bulk earth value, indicating the importance of an accurately determined correction factor.

  20. 吉化NBR230S聚合乳化体系的改进%An improvement on polymerization emulsifying system of Jihua NBR 230S

    Institute of Scientific and Technical Information of China (English)

    张涛; 孙雅莉; 陆书来; 李永茹; 孙凤贤

    2001-01-01

    By regulating the emulsifier system of NBR230S,the stability of the latex has been improved and many problems during NBR production such as reactor-sticking,serious loss of latex during coagulation,COD of the waste water exceeding the standard seriously have been resolved.The NBR plant could run in a long period steadily and the NBR quality could be improved.%通过改进NBR230S聚合过程中所用的 乳化 体系,提高了胶乳的稳定性,改善了生产过程中挂胶严重、后处理过程中胶乳流失量大、污 水COD值严重超标的状况,达到了长周期稳定生产及提高产品质量的目的。

  1. Status of Testing and Characterization of CMS Alloy 617 and Alloy 230

    Energy Technology Data Exchange (ETDEWEB)

    Ren, Weiju [ORNL; Santella, Michael L [ORNL; Battiste, Rick [ORNL; Terry, Totemeier [Idaho National Laboratory (INL); Denis, Clark [Idaho National Laboratory (INL)

    2006-08-01

    Status and progress in testing and characterizing CMS Alloy 617 and Alloy 230 tasks in FY06 at ORNL and INL are described. ORNL research has focused on CMS Alloy 617 development and creep and tensile properties of both alloys. In addition to refurbishing facilities to conduct tests, a significant amount of creep and tensile data on Alloy 230, worth several years of research funds and time, has been located and collected from private enterprise. INL research has focused on the creep-fatigue behavior of standard chemistry Alloy 617 base metal and fusion weldments. Creep-fatigue tests have been performed in air, vacuum, and purified Ar environments at 800 and 1000 C. Initial characterization and high-temperature joining work has also been performed on Alloy 230 and CCA Alloy 617 in preparation for creep-fatigue testing.

  2. SLUDGE PARTICLE SEPAPATION EFFICIENCIES DURING SETTLER TANK RETRIEVAL INTO SCS-CON-230

    Energy Technology Data Exchange (ETDEWEB)

    DEARING JI; EPSTEIN M; PLYS MG

    2009-07-16

    The purpose of this document is to release, into the Hanford Document Control System, FA1/0991, Sludge Particle Separation Efficiencies for the Rectangular SCS-CON-230 Container, by M. Epstein and M. G. Plys, Fauske & Associates, LLC, June 2009. The Sludge Treatment Project (STP) will retrieve sludge from the 105-K West Integrated Water Treatment System (IWTS) Settler Tanks and transfer it to container SCS-CON-230 using the Settler Tank Retrieval System (STRS). The sludge will enter the container through two distributors. The container will have a filtration system that is designed to minimize the overflow of sludge fines from the container to the basin. FAI/09-91 was performed to quantify the effect of the STRS on sludge distribution inside of and overflow out of SCS-CON-230. Selected results of the analysis and a system description are discussed. The principal result of the analysis is that the STRS filtration system reduces the overflow of sludge from SCS-CON-230 to the basin by roughly a factor of 10. Some turbidity can be expected in the center bay where the container is located. The exact amount of overflow and subsequent turbidity is dependent on the density of the sludge (which will vary with location in the Settler Tanks) and the thermal gradient between the SCS-CON-230 and the basin. Attachment A presents the full analytical results. These results are applicable specifically to SCS-CON-230 and the STRS filtration system's expected operating duty cycles.

  3. Leaching of radionuclides from uranium ore and mill tailings ( Ra- 226, Tn-230).

    Science.gov (United States)

    Landa, E.R.

    1982-01-01

    The major part of the extractable uranium is associated with a readily acid-soluble fraction in both ore and tailings. The major part of the extractable 226Ra was associated with an iron, manganese hydrous-oxide fraction in the ore and tailings. Thorium-230 was the least leachable of the radionuclides studied. The major portion of the extractable 230Th was associated with alkaline-earth sulphate precipitates, organic matter, or both. The specific effects of milling on each of the nuclides are discussed.-Author

  4. 41 CFR 102-41.230 - May SASPs pick up or store donated drug paraphernalia in their distribution centers?

    Science.gov (United States)

    2010-07-01

    ... 41 Public Contracts and Property Management 3 2010-07-01 2010-07-01 false May SASPs pick up or store donated drug paraphernalia in their distribution centers? 102-41.230 Section 102-41.230 Public... SASPs pick up or store donated drug paraphernalia in their distribution centers? No, you must...

  5. 21 CFR 176.230 - 3,5-Dimethyl-1,3,5,2H-tetrahydrothiadiazine-2-thione.

    Science.gov (United States)

    2010-04-01

    ... or technical effect in the food itself. (c) The use of a preservative in any substance or article... 21 Food and Drugs 3 2010-04-01 2009-04-01 true 3,5-Dimethyl-1,3,5,2H-tetrahydrothiadiazine-2-thione. 176.230 Section 176.230 Food and Drugs FOOD AND DRUG ADMINISTRATION, DEPARTMENT OF HEALTH...

  6. 75 FR 75170 - Minnkota Power Cooperative, Inc.: Bemidji to Grand Rapids 230 kV Transmission Line Project

    Science.gov (United States)

    2010-12-02

    ... Rural Utilities Service Minnkota Power Cooperative, Inc.: Bemidji to Grand Rapids 230 kV Transmission... to Grand Rapids 230 kV Transmission Line Project (Project) in Beltrami, Hubbard, Itasca, and Cass... alternatives to the Project proposed by Minnkota Power Cooperative, Inc. (Minnkota) for RUS financing...

  7. 17 CFR 230.166 - Exemption from section 5(c) for certain communications in connection with business combination...

    Science.gov (United States)

    2010-04-01

    ...) for certain communications in connection with business combination transactions. 230.166 Section 230... only to communications relating to business combinations. The exemption does not apply to...) Communications. In a registered offering involving a business combination transaction, any communication made in...

  8. 17 CFR 230.139 - Publications or distributions of research reports by brokers or dealers distributing securities.

    Science.gov (United States)

    2010-04-01

    ... for sale or an offer to sell a security or general solicitation or general advertising, in connection... 17 Commodity and Securities Exchanges 2 2010-04-01 2010-04-01 false Publications or distributions of research reports by brokers or dealers distributing securities. 230.139 Section 230.139...

  9. 17 CFR 230.164 - Post-filing free writing prospectuses in connection with certain registered offerings.

    Science.gov (United States)

    2010-04-01

    ... terms of the securities in the offering or the offering (or in the case of an offering of asset-backed... 17 Commodity and Securities Exchanges 2 2010-04-01 2010-04-01 false Post-filing free writing prospectuses in connection with certain registered offerings. 230.164 Section 230.164 Commodity and Securities...

  10. 17 CFR 230.167 - Communications in connection with certain registered offerings of asset-backed securities.

    Science.gov (United States)

    2010-04-01

    ... with certain registered offerings of asset-backed securities. 230.167 Section 230.167 Commodity and... offerings of asset-backed securities. The exemption does not apply to communications that may be in... Act (15 U.S.C. 77e). (a) In an offering of asset-backed securities meeting the requirements of General...

  11. 49 CFR 230.63 - Smoke box, steam pipes and pressure parts.

    Science.gov (United States)

    2010-10-01

    ... ADMINISTRATION, DEPARTMENT OF TRANSPORTATION STEAM LOCOMOTIVE INSPECTION AND MAINTENANCE STANDARDS Boilers and Appurtenances Steam Pipes § 230.63 Smoke box, steam pipes and pressure parts. The smoke box, steam pipes and... 49 Transportation 4 2010-10-01 2010-10-01 false Smoke box, steam pipes and pressure parts....

  12. 49 CFR 230.61 - Arch tubes, water bar tubes, circulators and thermic siphons.

    Science.gov (United States)

    2010-10-01

    ... (Continued) FEDERAL RAILROAD ADMINISTRATION, DEPARTMENT OF TRANSPORTATION STEAM LOCOMOTIVE INSPECTION AND MAINTENANCE STANDARDS Boilers and Appurtenances Washing Boilers § 230.61 Arch tubes, water bar tubes, circulators and thermic siphons. (a) Frequency of cleaning. Each time the boiler is washed, arch tubes...

  13. 49 CFR 230.37 - Steam test following repairs or alterations.

    Science.gov (United States)

    2010-10-01

    ... Boilers and Appurtenances Pressure Testing of Boilers § 230.37 Steam test following repairs or alterations... test of the boiler with steam pressure raised to between 95 percent and 100 percent of the MAWP. At... 49 Transportation 4 2010-10-01 2010-10-01 false Steam test following repairs or alterations....

  14. 48 CFR 52.230-6 - Administration of Cost Accounting Standards.

    Science.gov (United States)

    2010-10-01

    ... 48 Federal Acquisition Regulations System 2 2010-10-01 2010-10-01 false Administration of Cost... Clauses 52.230-6 Administration of Cost Accounting Standards. As prescribed in 30.201-4(d)(1), insert the following clause: Administration of Cost Accounting Standards (JUN 2010) For the purpose of...

  15. 7 CFR 1220.230 - Promotion, research, consumer information, and industry information.

    Science.gov (United States)

    2010-01-01

    ... 7 Agriculture 10 2010-01-01 2010-01-01 false Promotion, research, consumer information, and...), DEPARTMENT OF AGRICULTURE SOYBEAN PROMOTION, RESEARCH, AND CONSUMER INFORMATION Soybean Promotion and Research Order Expenses and Assessments § 1220.230 Promotion, research, consumer information, and...

  16. XNMG’s Reserves Increase over RMB 230 Billion in 4 Years

    Institute of Scientific and Technical Information of China (English)

    2012-01-01

    <正>The 100 million tons of proven iron ore in south Xinjiang marks the successful conclusion of mineral exploration of Xinjiang Nonferrous Metals Group (XNMG) this year. It enables XNMG’s potential economic value of newlyincreased resources to exceed RMB 230 billion since implementation of the strategy of geological prospecting and resource consolidation,

  17. 24 CFR 572.230 - Cash and Management Information (C/MI) System.

    Science.gov (United States)

    2010-04-01

    ... HOMES PROGRAM (HOPE 3) Grants § 572.230 Cash and Management Information (C/MI) System. Disbursement of HOPE 3 grant funds is managed through HUD's Cash and Management Information (C/MI) System for the HOPE... 24 Housing and Urban Development 3 2010-04-01 2010-04-01 false Cash and Management Information...

  18. 49 CFR 230.40 - Time and method of staybolt testing.

    Science.gov (United States)

    2010-10-01

    ... of hammer testing. If staybolts are tested while the boiler contains water, the hydrostatic pressure... Appurtenances Staybolts § 230.40 Time and method of staybolt testing. (a) Time of hammer testing—(1) General. All staybolts shall be hammer tested at every 31 service day inspection, except as provided...

  19. 17 CFR 230.801 - Exemption in connection with a rights offering.

    Science.gov (United States)

    2010-04-01

    ... thereto, in English, to the Commission on Form CB (§ 239.800 of this chapter) by the first business day..., Exchange Offers and Business Combinations § 230.801 Exemption in connection with a rights offering. A... document to U.S. holders, including any amendments thereto, in English, on a comparable basis to...

  20. Design Study of Superconducting Coil of 230 MeV Superconducting Cyclotron

    Institute of Scientific and Technical Information of China (English)

    WANG; Chuan; YIN; Meng; ZHANG; Su-ping; LI; Ming; CUI; Tao; LIN; Jun; LV; Yin-long; GE; Tao; YIN; Zhi-guo; ZHANG; Tian-jue

    2015-01-01

    The superconducting coil system of CYCIAE-230superconducting proton cyclotron consists of two coil windings,cryostat,GM coolers,and the liquid helium condenser(Fig.1),along with multiple thermometers,pressure gauges,liquid level gauges,load cells,a vacuum pump,a

  1. 17 CFR 230.482 - Advertising by an investment company as satisfying requirements of section 10.

    Science.gov (United States)

    2010-04-01

    ... 17 Commodity and Securities Exchanges 2 2010-04-01 2010-04-01 false Advertising by an investment... Investment Companies; Business Development Companies § 230.482 Advertising by an investment company as satisfying requirements of section 10. (a) Scope of rule. This section applies to an advertisement or other...

  2. 12 CFR Appendix B to Part 230 - Model Clauses and Sample Forms

    Science.gov (United States)

    2010-01-01

    ... mature in (time period). (ii) Early withdrawal penalties We impose a penalty if you withdraw of the... interest will remain on deposit until maturity. A withdrawal will reduce earnings. (iv) Renewal policies (1... for Change in Terms (Section 230.5(a)) B-3—Model Clauses for Pre-Maturity Notices for Time...

  3. 22 CFR 230.08 - Event of Default; Application for Compensation; payment.

    Science.gov (United States)

    2010-04-01

    ... 22 Foreign Relations 1 2010-04-01 2010-04-01 false Event of Default; Application for Compensation...-STANDARD TERMS AND CONDITIONS § 230.08 Event of Default; Application for Compensation; payment. At any time after an Event of Default, as this term is defined in an Eligible Note, any Noteholder hereunder, or the...

  4. Biaxial thermal creep of Inconel 617 and Haynes 230 at 850 and 950 °C

    Science.gov (United States)

    Tung, Hsiao-Ming; Mo, Kun; Stubbins, James F.

    2014-04-01

    The biaxial thermal creep behavior of Inconel 617 and Haynes 230 at 850 and 950 °C was investigated. Biaxial stresses were generated using the pressurized tube technique. The detailed creep deformation and fracture mechanism have been studied. Creep curves for both alloys showed that tertiary creep accounts for a greater portion of the materials' life, while secondary creep only accounts for a small portion. Fractographic examinations of the two alloys indicated that nucleation, growth, and coalescence of creep voids are the dominant micro-mechanisms for creep fracture. At 850 °C, alloy 230 has better creep resistance than alloy 617. When subjected to the biaxial stress state, the creep rupture life of the two alloys was considerably reduced when compared to the results obtained by uniaxial tensile creep tests. The Monkman-Grant relation proves to be a promising method for estimating the long-term creep life for alloy 617, whereas alloy 230 does not follow the relation. This might be associated with the significant changes in the microstructure of alloy 230 at high temperatures.

  5. Precise timing of the last interglacial period from mass spectrometric determination of thorium-230 in corals

    Science.gov (United States)

    Chen, J. H.; Wasserburg, G. J.; Ku, T.-L.; Edwards, R. Lawrence

    1987-01-01

    The development of mass spectrometric techniques for determination of Th-230 abundance has made it possible to reduce analytical errors in (U-238)-(U-234)-(Th-230) dating of corals even with very small samples. Samples of 6 x 10 to the 8th atoms of Th-230 can be measured to an accuracy of + or - 3 percent (2sigma), and 3 x 10 to the 10th atoms of Th-230 can be measured to an accuracy of + or - 0.2 percent. The time range over which useful age data on corals can be obtained now ranges from about 50 to about 500,000 years. For young corals, this approach may be preferable to C-14 dating. The precision with which the age of a coral can now be determined should make it possible to critically test the Milankovitch hypothesis concerning Pleistocene climate fluctuations. Analyses of a number of corals that grew during the last interglacial period yield ages of 122,000 to 130,000 years. The ages coincide with, or slightly post-date, the summer solar insolation high at 65 deg N latitude which occurred 128,000 years ago. This supports the idea that changes in Pleistocene climate can be the result of variations in the distribution of solar insolation caused by changes in the geometry of the earth's orbit and rotation axis.

  6. 40 CFR 230.61 - Chemical, biological, and physical evaluation and testing.

    Science.gov (United States)

    2010-07-01

    ... 40 Protection of Environment 24 2010-07-01 2010-07-01 false Chemical, biological, and physical... FILL MATERIAL Evaluation and Testing § 230.61 Chemical, biological, and physical evaluation and testing... appropriate physical and chemical environmental characteristics. (d) Physical tests and evaluation. The...

  7. 49 CFR 173.230 - Fuel cell cartridges containing hazardous material.

    Science.gov (United States)

    2010-10-01

    ...) For fuel cell cartridges contained in equipment, fuel cell systems must not charge batteries during... 49 Transportation 2 2010-10-01 2010-10-01 false Fuel cell cartridges containing hazardous material... Than Class 1 and Class 7 § 173.230 Fuel cell cartridges containing hazardous material. (a)...

  8. Precise timing of the last interglacial period from mass spectrometric determination of thorium-230 in corals

    Science.gov (United States)

    Chen, J. H.; Wasserburg, G. J.; Ku, T.-L.; Edwards, R. Lawrence

    1987-01-01

    The development of mass spectrometric techniques for determination of Th-230 abundance has made it possible to reduce analytical errors in (U-238)-(U-234)-(Th-230) dating of corals even with very small samples. Samples of 6 x 10 to the 8th atoms of Th-230 can be measured to an accuracy of + or - 3 percent (2sigma), and 3 x 10 to the 10th atoms of Th-230 can be measured to an accuracy of + or - 0.2 percent. The time range over which useful age data on corals can be obtained now ranges from about 50 to about 500,000 years. For young corals, this approach may be preferable to C-14 dating. The precision with which the age of a coral can now be determined should make it possible to critically test the Milankovitch hypothesis concerning Pleistocene climate fluctuations. Analyses of a number of corals that grew during the last interglacial period yield ages of 122,000 to 130,000 years. The ages coincide with, or slightly post-date, the summer solar insolation high at 65 deg N latitude which occurred 128,000 years ago. This supports the idea that changes in Pleistocene climate can be the result of variations in the distribution of solar insolation caused by changes in the geometry of the earth's orbit and rotation axis.

  9. 36 CFR 230.39 - State priority plan-financial assistance.

    Science.gov (United States)

    2010-07-01

    ... 36 Parks, Forests, and Public Property 2 2010-07-01 2010-07-01 false State priority plan-financial...) The State priority plan must also address the following steps related to financial assistance: (1... AGRICULTURE STATE AND PRIVATE FORESTRY ASSISTANCE Forest Land Enhancement Program § 230.39 State priority plan...

  10. Grain Size Biasing of 230Th-derived Focusing Factors in the Panama Basin

    Science.gov (United States)

    Loveley, M. R.; Marcantonio, F.; Lyle, M. W.; Ibrahim, R.; Wang, J. K.; Hertzberg, J. E.

    2014-12-01

    In this study, we attempt to understand how differing grain size classes in Panama Basin sediments may create biasing of 230Th as a constant-flux proxy. Greater amounts of 230Th are contained in fine grained particles, which, if fractionated from coarser grained counterparts may lead to biasing of 230Th-derived mass accumulation rates (MARs) and sediment focusing factors. We examined sediments that span the past 25 kyr from four new sediment cores retrieved from two different localities close to the ridges that bound the Panama Basin. Each locality contained paired sites that were seismically interpreted to have undergone sediment redistribution, i.e., thick focused sites versus thin winnowed sites. Two sediment cores were retrieved from the northern part of the Panama basin, Cocos Ridge, (MV1014-01-"4JC", 5° 44.7'N 85° 45.5' W, 1730 m depth; MV1014-01-"8JC", 6° 14.0'N 86° 2.6' W, 1993 m depth), and two were retrieved from the southern part of the basin, Carnegie Ridge, (MV1014-02-"11JC", 0° 41.6'S 85° 20.0' W, 2452 m depth; MV1014-02-"17JC" 0° 10.8'S 85° 52.0' W, 2846 m depth). Cores 4JC and 11JC lie closer to the ridge tops of the Cocos and Carnegie Ridges, respectively, and have thin sediment drapes, while deeper cores, 8JC (Cocos) and 17JC (Carnegie), have thicker sediment drapes and lie downslope from the ridge top cores. Age-model-derived sand MARs, which likely represent the vertical rain of particles that cannot be transported by bottom currents, are similar at each of the paired sites in Holocene and glacial time slices. However, 230Th-normalized MARs are about 50% lower, on average at each of the paired sites during the same time slices. Both Holocene and glacial samples from "thin" cores (4,11JC) contain, surprisingly, significant amounts (up to 50%) of the 230Th within the coarse grained (>63 μm) fraction which makes up 40-70% of the bulk samples analyzed. On the contrary, Holocene and glacial samples from "thick" cores, (8,17JC), contain the

  11. Dating Landforms by Th-230/U on Pedogenic Carbonate: What, Where, When, and How Well?

    Science.gov (United States)

    Sharp, W. D.; Phillips, R. J.; Fletcher, K. E.; Ludwig, K. R.

    2006-12-01

    Th-230/U dating of calcic soils within gravelly landforms, such as glacio-fluvial and alluvial deposits can provide accurate and precise age constraints on deposition and surface stabilization. The Th-230/U dating technique complements more widely applied methods such as radiocarbon (C-14) and cosmogenic radionuclide (CRN) dating. For example, the Th-230/U technique is not affected by clast inheritance, or post-depositional erosion, exhumation or shielding of individual clasts. In addition, pedogenic carbonate is common in arid, oxidizing environments where organic materials appropriate for C-14 dating are rare or absent. Th-230/U dating of pedogenic carbonate has a useful range of at least 250 ka. Th-230/U dating requires only two assumptions: (1) that samples have remained closed for U and Th isotopes, and (2) that adequate correction is made for initial Th-230. Self-consistency may be used to test these assumptions, thereby providing a reliability criterion inherent to the ages themselves. Routine analytical precision for Th-230/U dates on favorable materials determined via mass spectrometry is 1% or better from the mid-Holocene to >250 ka. Due to the simplicity of the technique, accuracy is comparable to measurement precision. Pedogenic carbonate is widely distributed in diverse semi-arid to arid environments, such as Tibet, the Patagonian Andes, the Rocky Mountains, and the low deserts of western North America. Carbonate accumulation in gravels follows a well-known pattern, beginning with the formation of dense, relatively pure clast-coatings. Visible carbonate may then form in as little as a few hundred years. Clast-coats that form in gravels dominated by silicate detritus and preserve pristine textures such as sub-millimeter-scale laminations yield reliable ages when milligram-size samples are chosen using straightforward visual criteria. More than 500 mass spectrometric analyses of such samples show that >90% remain closed with respect to U and Th isotopes

  12. 230例儿童流行性腮腺炎临床分析%Clinical analysis of 230 cases of children mumps

    Institute of Scientific and Technical Information of China (English)

    郭熙英; 努尔古丽

    2015-01-01

    Objective To analyze the clinical and epidemiological characteristics of the mumps cases in patients and discuss the method of prevention and cure,provide the basis for the prevention and treatment of the disease.Methods Description epidemiology was used to analyzed the epidemiological characteristics,clinical characteristics.The treatment outcome were analyzed in 230 mumps cases from April 2009 to March 2009.Result 230 patients had fever and with bilateral or unilateral parotid gland enlargement.56 cases had headache (24.3%),nausea,vomiting.10 cases (4.3%) had abdominal pain (4.3%).Testicular swelling in 2 cases (0.9%).18 patients complicated with central nervous system infection (7.8%).2 cases (0.9%) had orchitis,10 cases had acute pancreatitis (4.3%).Conclusions 5-10 years children are high risk population.Patients complicated with central nervous system infection,orchitis and pancreatitis.Timely and effective vaccination are the basic measures to prevent the disease.%目的 分析流行性腮腺炎患者的临床表现和流行病学特征,并探讨其防治方法,为防治该病提供依据.方法 利用描述流行病学的方法对2009年3月-2012年4月收治的230例流行性腮腺炎患者的流行病学特征、临床特点及治疗转归进行分析.结果 230例患者均有发热且伴双侧或单侧腮腺肿大.56例出现头痛(占24.3%),恶心、呕吐10例(占4.3%),腹痛10例(占4.3%),睾丸肿胀2例(占0.9%).18例并发中枢神经系统感染(占7.8%),睾丸炎2例(占0.9%),胰腺炎10例(占4.3%).结论患者以5-10岁居多(占72%);发病季节以冬春季3-5月为主;230例中有并发症32例,并发症多为中枢神经系统感染(7.8%,18/230),其次为睾丸炎和胰腺炎.经积极抗病毒和对症治疗后,所有病例均治愈.结论 流行性腮腺炎患者以5-10岁发病为主,患者易并发中枢神经系统感染、睾丸炎和胰腺炎,及时有效的接种疫苗是预防该病的根本措施.

  13. Observation of 230 lying-in women with doula accompany deliery%导乐陪伴分娩230例效果观察

    Institute of Scientific and Technical Information of China (English)

    商秀贞

    2009-01-01

    目的 通过对230例导乐陪伴分娩孕妇的临床观察,寻找降低剖宫产率,提高阴道顺产率的有效措施.方法 正常足月孕妇,无头盆不称,均排除妊娠合并症或并发症,随机分为导乐分娩及正常足月分娩组各230例.结果 230例导乐陪伴分娩孕妇的剖宫产率、吸引器助产率、产后2 h出血量明显低于对照组(P<0.05);胎儿宫内窘迫、新生儿窒息、产后出血明显低于对照组(P<0.05);导乐组孕妇的第一产程、第二产程及总产程均短于对照组(P<0.01).结论 导乐陪伴分娩可以降低剖宫产率,缩短产程,减少产后出血,降低新生儿窒息率.导乐陪伴分娩为产妇提供了人性化的产程服务模式,效果显著,此服务模式值得在产科推广应用.

  14. Re-capacitance of 230 kV circuits using the expanded beam concept; Recapacitacao de circuitos 230 kV com o conceito de feixe expandido

    Energy Technology Data Exchange (ETDEWEB)

    Regis Junior, Oswaldo; Cavalcanti, Sebastiao J. Gusmao; Wavrik, Jose Felipe A.G. [Companhia Hidroeletrica do Sao Francisco (CHESF), Recife, PE (Brazil); Maia, Marcelo J. Albuquerque [ELETROBRAS, Rio de Janeiro, RJ (Brazil); Podporkin, Georgij Viktorovich [Centro de Pesquisas de Energia Eletrica, Rio de Janeiro, RJ (Brazil)

    1995-12-31

    Using the concept of high natural power transmission line, this technical report presents a new alternative for the re capacitance of existent transmission lines through the expansion of conductor beams. It is related the experience of CHESF (Sao Francisco Hydroelectric Power Public Utility) in the study, project and pursuance of an experimental stretch energized in december 1994. It is also presented technical and economical evaluations in order to approve expanded beams in the 230 kV power transmission line, changeable to 500 kV 4 refs., 9 figs., 6 tabs.

  15. 230Thand 231Pa in Seawater Sinking Particles from the North Atlantic GEOTRACES Transect

    Science.gov (United States)

    LU, Y.; Edwards, R. L.; Cheng, H.; Anderson, R. F.; Hayes, C. T.; Fleisher, M. Q.; Lam, P. J.; Huang, K. F.; Robinson, L. F.; Wang, X.

    2016-12-01

    The biological carbon pump in the ocean plays a key role in regulating atmospheric CO2 level via oceanic particle dynamics. Radionuclides with proper half-lives, like 230Th and 231Pa, can provide quantitative estimates of particle cycling on the timescales up to hundred thousand years. However, our understanding of particle dynamics is hindered by the difficulty in precisely determining particulate 230Th and 231Pa, due to the trace amounts of Th and Pa in seawater, especially in large sinking particles. Here, we developed a technique to measure sinking particulate 230Th and 231Pa in a small sample size (tens to hundreds attograms of 231Pa, equivalent to 100 L water pumped through QMA filter), and achieved an average precision in percentage level. We firstly applied leaching processes to the particulate samples. The samples were soaked in 8N HNO3 + 0.5N HF mixed with proportionally determined 229Th and 233Pa spikes, and heated at 100°C for 10 hours. Th and Pa were then pre-concentrated by co-precipitation with Fe. After HNO3-HClO4-HNO3 digestion of the precipitates, Th and Pa were separated and purified using anion exchange chromatography (Spectra/Gel anion resin 1x8). Pa was measured on a MC-ICP-MS instrument (Neptune) right after the chemistry in order to minimize the 233Pa "bleeding effect". Replication tests show a good agreement in 231Pa/230Th within the measurement uncertainties. Applying our method to the profile samples collected from the North Atlantic GEOTRACES Transect, we found that the concentrations of 230Th and 231Pa in sinking particles (>51 μm size fraction; attograms/liter) are about 1/10 of those in suspended ones (1 - 51 μm size fraction). The scavenging of Th and Pa to large particles appears to be a function of particle composition (CaCO3, POM, lithogenic, opal and Fe/Mn oxides). In addition, ratios of the adsorbed 231Pa to 230Th are the same in both types of particles, although the particles have significantly different residence time in

  16. 230例孕妇口服避孕药止血的临床分析%230 cases of pregnant women taking oral contraceptives hemostasis clinical analysis

    Institute of Scientific and Technical Information of China (English)

    袁威令

    2012-01-01

    目的 探讨孕妇口服避孕药止血相关影响因素.方法 研究对象随机选取在2010年1月至2012年6月期间在我医院就诊的人流、上环、取环术后阴道流血时间超过2周的妇女230例进行临床观察.结果 230例流血患者中有130例流血时间在14-20天,60例流血时间在21-35天,40例流血时间>35天.Cox比例风险回归模型统计分析后,表明口服避孕药止血影响因素有感染、不良分娩史、宫内残留、多次人工流产史,及女性内分泌紊乱等.结论 妇科临床门诊对治疗口服避孕药止血的孕妇,其前提是要保证手术质量,手术操作规范,要求我们努力宣教生殖健康知识,及时处理术后不良反应.

  17. The AIRE -230Y Polymorphism Affects AIRE Transcriptional Activity: Potential Influence on AIRE Function in the Thymus.

    Science.gov (United States)

    Lovewell, Thomas R J; McDonagh, Andrew J; Messenger, Andrew G; Azzouz, Mimoun; Tazi-Ahnini, Rachid

    2015-01-01

    The autoimmune regulator (AIRE) is expressed in the thymus, particularly in thymic medullary epithelial cells (mTECs), and is required for the ectopic expression of a diverse range of peripheral tissue antigens by mTECs, facilitating their ability to perform negative selection of auto-reactive immature T-cells. The expression profile of peripheral tissue antigens is affected not only by AIRE deficiency but also with variation of AIRE activity in the thymus. Therefore we screened 591bp upstream of the AIRE transcription start site including AIRE minimal promoter for single nucleotide polymorphism (SNPs) and identified two SNPs -655R (rs117557896) and -230Y (rs751032) respectively. To study the effect of these variations on AIRE promoter activity we generated a Flp-In host cell line which was stably transfected with a single copy of the reporter vector. Relative promoter activity was estimated by comparing the luciferase specific activity for lysates of the different reporter AIRE promoter-reporter gene constructs including AIRE-655G AIRE-230C, AIRE-655G AIRE-230T and AIRE-655A AIRE-230C. The analysis showed that the commonest haplotype AIRE-655G AIRE-230C has the highest luciferase specific activity (pAIRE-655G AIRE-230T has a luciferase specific activity value that approaches null. Both AIRE promoter polymorphic sites have one allele that forms a CpG methylation site which we determined can be methylated in methylation assays using the M.SssI CpG methyltransferase. AIRE-230Y is in a conserved region of the promoter and is adjacent to a predicted WT1 transcription factor binding site, suggesting that AIRE-230Y affects AIRE expression by influencing the binding of biochemical factors to this region. Our findings show that AIRE-655GAIRE-230T haplotype could dramatically alter AIRE transcription and so have an effect on the process of negative selection and affect susceptibility to autoimmune conditions.

  18. Antimicrobial susceptibility testing of 230 Helicobacter pylori strains: importance of medium, inoculum, and incubation time

    DEFF Research Database (Denmark)

    Hartzen, S H; Andersen, L P; Bremmelgaard, A;

    1997-01-01

    No standardized method of susceptibility testing for Helicobacter pylori is currently available, so before a large agar dilution study comprising 230 H. pylori strains belonging to more than 80 genetically different groups was initiated, we performed a relatively small preliminary study....../spot) as the inoculum and 72 h as the incubation time. A modest inoculum effect was noted for amoxicillin and metronidazole. By the methodology derived from our preliminary study, the susceptibilities of 230 H. pylori strains to six antibiotics were subsequently determined. The results were generally in accord...... with those of others, and apart from metronidazole, the MIC of which for approximately 25% of the strains tested was >8 microg/ml, resistance was low in Denmark. The situation might, however, quickly change when and if the number of indications for antibiotic therapy for H. pylori infections increase...

  19. Effects of long-term high temperature exposure on the microstructure of Haynes alloy 230

    Energy Technology Data Exchange (ETDEWEB)

    Veverkova, J.; Strang, A.; Atkinson, H.V. [Leicester Univ. (United Kingdom). Dept. of Engineering; Marchant, G.R. [Siemens Industrial Turbomachinery Ltd., Lincoln (United Kingdom)

    2010-07-01

    Haynes Alloy 230 was specifically designed to have excellent long-term thermal stability and resistance to the precipitation of damaging phases. This paper describes in detail studies on the effects of long-term high temperature exposure on the hardness, microstructural changes and tensile properties of thermally exposed samples of Haynes Alloy 230. The samples from the 2mm thick sheet material have been investigated using X-Ray diffraction and advanced electron microscopy techniques (FEGSEM, TEM etc.). The evolution of the precipitating phases was monitored across a wide range of temperatures (from 500 C to 1170 C) and durations (from 24 hours up to 30000 hours) and several key phases have been identified. In addition to the primary W-rich carbide and the precipitation of Cr-rich M{sub 23}C{sub 6}, a new brittle phase/carbide was observed within the microstructure at the highest exposure temperatures (above 930 C). (orig.)

  20. Measurement of 230Pa and 186Re Production Cross Sections Induced by Deuterons at Arronax Facility

    Science.gov (United States)

    Duchemin, Charlotte; Guertin, Arnaud; Metivier, Vincent; Haddad, Ferid; Michel, Nathalie

    2014-02-01

    A dedicated program has been launched on production of innovative radionuclides for PET imaging and for β- and α targeted radiotherapy using proton or α particles at the ARRONAX cyclotron. Since the accelerator is also able to deliver deuteron beams up to 35 MeV, we have reconsidered the possibility of using them to produce medical isotopes. Two isotopes dedicated to targeted therapy have been considered: 226Th, a decay product of 230Pa, and 186Re. The production cross sections of 230Pa and 186Re, as well as those of the contaminants created during the irradiation, have been determined by the stacked-foil technique using deuteron beams. Experimental values have been quantified using a referenced cross section. The measured cross sections have been used to determine expected production yields and compared with the calculated values obtained using the Talys code with default parameters.

  1. Automatic Color Sorting Machine Using TCS230 Color Sensor And PIC Microcontroller

    Directory of Open Access Journals (Sweden)

    Kunhimohammed C K

    2015-12-01

    Full Text Available Sorting of products is a very difficult industrial process. Continuous manual sorting creates consistency issues. This paper describes a working prototype designed for automatic sorting of objects based on the color. TCS230 sensor was used to detect the color of the product and the PIC16F628A microcontroller was used to control the overall process. The identification of the color is based on the frequency analysis of the output of TCS230 sensor. Two conveyor belts were used, each controlled by separate DC motors. The first belt is for placing the product to be analyzed by the color sensor, and the second belt is for moving the container, having separated compartments, in order to separate the products. The experimental results promise that the prototype will fulfill the needs for higher production and precise quality in the field of automation.

  2. Direct production of L-tagatose from L-psicose by Enterobacter aerogenes 230S.

    Science.gov (United States)

    Rao, Devendar; Gullapalli, Pushpakiran; Yoshihara, Akihide; Jenkinson, Sarah F; Morimoto, Kenji; Takata, Goro; Akimitsu, Kazuya; Tajima, Shigeyuki; Fleet, George W J; Izumori, Ken

    2008-11-01

    L-tagatose was produced directly from L-psicose by subjecting the same biomass suspension to microbial reduction followed by oxidation using a newly isolated bacteria Enterobacter aerogenes 230S. After various optimizations, it was observed that cells grown on xylitol have the best conversion potential. Moreover, E. aerogenes 230S converted L-psicose to L-tagatose at a faster rate in the presence of polyols such as glycerol, D-sorbitol, ribitol, L-arabitol, D-mannitol and xylitol. At 5% substrate concentration, the conversion ratio of L-psicose to L-tagatose was above 60% in the presence of glycerol. Identity of crystalline L-tagatose was confirmed by HPLC analysis, (13)C-NMR spectra, and optical rotation.

  3. Absence of {sup 232,230,228}Th enhancement decay by ultrasound exposure

    Energy Technology Data Exchange (ETDEWEB)

    Aupiais, J. [CEA DAM DIF, Arpajon (France); Cousin, V.; Nikitenko, S.I.; Pflieger, R. [Marcoule Institute for Separation Chemistry, ICSM, UMR 5257, Bagnols-sur-Ceze (France); Moisy, P. [CEA, Bagnols-sur-Ceze (France). RadioChemistry and Processes Dept.

    2013-08-01

    We report on our attempt to reproduce the {sup 228}Th decay enhancement under the effect of power ultrasound claimed recently in the literature. The evolution of natural thorium isotopic composition ({sup 232}Th, {sup 230}Th, and {sup 228}Th) in various aqueous solutions submitted to 20 kHz power ultrasound (0.18 W mL{sup -1}, 20 C, Ar). The radioactivities of the three isotopes of thorium ({sup 232}Th, {sup 230}Th and {sup 228}Th) were followed by a liquid scintillation counting technique. No change was detected during ultrasonic irradiation. Our results demonstrate that under the studied conditions the rate of Th isotopes radioactive decay is not modified under the effect of ultrasound on aqueous solutions of thorium salts. (orig.)

  4. Susceptibility to Hot Cracking and Weldment Heat Treatment of Haynes 230 Superalloy

    Institute of Scientific and Technical Information of China (English)

    C.M.Cheng; C.P.Chou; I.K.Lee; I.C.Kuo

    2006-01-01

    This study investigates the susceptibility of hot cracking and weldment heat treatment of Haynes 230 superalloy.The Varestriant test was conducted to evaluate this susceptibility. Welding was performed by gas tungsten arc welding(GTAW)and plasma arc welding(PAW)with stress relief heat treatment and solid solution heat treatment. A tensile test is then performed to measure the changes in the mechanical properties of the heattreated material. The results indicate that the number of thermal cycles does not affect the susceptibility of Haynes 230 superalloy to hot cracking. However, it does increase the strain. In weldment of heat treatment,stress relief annealing increases the yield strength and tensile strength of the welded parts. The section of the tensile specimens shows fibrous fractures on the welded parts, regardless of whether they are heat-treated.

  5. Floor response spectra for seismic qualification of Kozloduy VVER 440-230 NPP

    Energy Technology Data Exchange (ETDEWEB)

    Kostov, M.K. [Bulgarian Academy of Sciences, Sofia (BG). Central Lab. for Seismic Mechanics and Earthquake Engineering; Ma, D.C. [Argonne National Lab., IL (United States); Prato, C.A. [Univ. of Cordoba (AR); Stevenson, J.D. [Stevenson and Associates, Cleveland, OH (US)

    1993-08-01

    In this paper the floor response spectra generation methodology for Kozloduy NPP, Unit 1-2 of VVER 440-230 is presented. The 2D coupled soil-structure interaction models are used combined with a simplified correction of the final results for accounting of torsional effects. Both time history and direct approach for in-structure spectra generation are used and discussion of results is made.

  6. 三箭齐发SONY A230/A330/A380

    Institute of Scientific and Technical Information of China (English)

    2009-01-01

    索尼在5月推出三款主流数码单反相机DSLR-A380/330/230,它们将分别取代DSLR-A350/300/200,机身更轻巧,更易用,三款机型首次采用了新的人体工程学设计和更直观的图形用户界面.

  7. AGILE detection of transient emission from the FSRQ TXS 0907+230 region

    Science.gov (United States)

    Munar-Adrover, P.; Piano, G.; Minervini, G.; Pittori, C.; Verrecchia, F.; Bulgarelli, A.; Tavani, M.; Lucarelli, F.; Fioretti, V.; Zoli, A.; Donnarumma, I.; Vercellone, S.; Striani, E.; Cardillo, M.; Gianotti, F.; Trifoglio, M.; Giuliani, A.; Mereghetti, S.; Caraveo, P.; Perotti, F.; Chen, A.; Argan, A.; Costa, E.; Del Monte, E.; Evangelista, Y.; Feroci, M.; Lazzarotto, F.; Lapshov, I.; Pacciani, L.; Soffitta, P.; Sabatini, S.; Vittorini, V.; Pucella, G.; Rapisarda, M.; Di Cocco, G.; Fuschino, F.; Galli, M.; Labanti, C.; Marisaldi, M.; Pellizzoni, A.; Pilia, M.; Trois, A.; Barbiellini, G.; Vallazza, E.; Longo, F.; Morselli, A.; Picozza, P.; Prest, M.; Lipari, P.; Zanello, D.; Cattaneo, P. W.; Rappoldi, A.; Colafrancesco, S.; Parmiggiani, N.; Ferrari, A.; Antonelli, A.; Giommi, P.; Salotti, L.; Valentini, G.; D'Amico, F.

    2016-10-01

    AGILE is detecting an increased gamma-ray emission above 100 MeV from a source with galactic coordinates (l,b)= (206.5 deg, 39.8 deg) +/- 1.2 deg (stat 99% c.l.) +/- 0.1 deg (syst), marginally consistent with the flat spectrum radio quasar TXS 0907+230 (also known as 5BZQ J0910+2248) and associated to the gamma-ray Fermi source 3FGL J0910.9+2248.

  8. 231Pa/230Th records of Arctic/Atlantic interchange in Fram Strait

    Science.gov (United States)

    Hoffmann, S. S.; McDermott, K. J.; McManus, J. F.; Mukasa, S. B.

    2014-12-01

    Fram Strait, the Arctic Ocean's only deep passage for exchange with lower latitude oceans, today serves as a conduit for waters flowing north into the Arctic Ocean and south into the Atlantic. Reconstruction of circulation patterns and strength at depth in the strait can help to clarify the history of Arctic/Atlantic deep water exchange and Arctic contributions to global meridional overturning circulation. We will present new sedimentary measurements of radioisotopes 231Pa and 230Th to provide information on this exchange in the past and its relationship to sedimentation and climatic events. Coretop and downcore 231Pa/230Th ratios from Arctic sediments indicate that 231Pa has been exported from the central Arctic basin throughout the Holocene and deglaciation. Fram Strait represents a possible sink for this "missing" 231Pa. Preliminary results from ODP Holes 908A and 909A, at 1274 m and 2519 m water depths respectively in the central strait, suggest that ratios in this region during the Holocene have varied between ~0.106 (above the 231Pa/230Th production ratio of 0.093 in seawater, indicating net import of 231Pa)and ~0.055 (well below the production ratio, indicating net export of 231Pa). Further measurements in cores from the Greenland and Svalbard continental slopes will give a fuller regional picture of 231Pa deposition and transport across the strait.

  9. 230Th-234U Model-Ages of Some Uranium Standard Reference Materials

    Energy Technology Data Exchange (ETDEWEB)

    Williams, R W; Gaffney, A M; Kristo, M J; Hutcheon, I D

    2009-05-28

    The 'age' of a sample of uranium is an important aspect of a nuclear forensic investigation and of the attribution of the material to its source. To the extent that the sample obeys the standard rules of radiochronometry, then the production ages of even very recent material can be determined using the {sup 230}Th-{sup 234}U chronometer. These standard rules may be summarized as (a) the daughter/parent ratio at time=zero must be known, and (b) there has been no daughter/parent fractionation since production. For most samples of uranium, the 'ages' determined using this chronometer are semantically 'model-ages' because (a) some assumption of the initial {sup 230}Th content in the sample is required and (b) closed-system behavior is assumed. The uranium standard reference materials originally prepared and distributed by the former US National Bureau of Standards and now distributed by New Brunswick Laboratory as certified reference materials (NBS SRM = NBL CRM) are good candidates for samples where both rules are met. The U isotopic standards have known purification and production dates, and closed-system behavior in the solid form (U{sub 3}O{sub 8}) may be assumed with confidence. We present here {sup 230}Th-{sup 234}U model-ages for several of these standards, determined by isotope dilution mass spectrometry using a multicollector ICP-MS, and compare these ages with their known production history.

  10. Thorium-230 dating of carbonates: current technical capabilities and major applications

    Science.gov (United States)

    Edwards, R. L.; Cheng, H.; Pythoud, M.; Lu, Y.; Zhang, P.; Nissen, J.; Berry, A.; Cross, M.

    2015-12-01

    Uranium-thorium or Th-230 dating has proven to be an important tool in determining the timing of events in the late Quaternary. Among the major applications are: the timing of sea level change, the timing of continental climate change as preserved in cave archives, the timing of climate change in marine and ice core archives through correlation to Th-230 - dated cave records, and calibration of the radiocarbon timescale. The success of these applications has been driven by continuing technical advances in the measurement of the rare actinide isotopes, U-234 and Th-230. The advances have improved the precision, sensitivity, and accuracy of the measurements. The main factor in measurement improvement has been an increase of about 5 orders of magnitude (over the past 30 years) in the fraction of the sample that can be detected, dramatically improving counting statistics, as well as measurement sensitivity. The 5-order of magnitude improvement, comes largely from the shift to mass spectrometric measurement techniques, but also has resulted from subsequent improvement in ionization plus transmission efficiency. While additional improvement above the 5-order of magnitude figure may be possible, current efforts are focused on improving the accuracy of the measurements, standardizing gravimetric standards among laboratories, and shortening measurement times. These efforts will be discussed along with summary results of some of the major applications.

  11. Magmatic Processes at Loihi Seamount Inferred From 226Ra-230Th-234U-238U Disequilibria

    Science.gov (United States)

    Pietruszka, A. J.; Hauri, E. H.; Garcia, M. O.

    2001-12-01

    We have conducted a detailed study of the U-series isotope geochemistry of young tholeiitic, transitional and alkalic Loihi basalts to examine the melt generation process during the preshield stage of a Hawaiian volcano. A previous study (Sims et al. 1999; GCA, v. 63) of two dredged lavas from the deep flanks of Loihi found a higher (230Th/238U) activity ratio in an alkalic basalt (1.07) compared to a tholeiitic basalt (1.04). This difference suggests that the tholeiitic basalt may have formed at a higher rate of mantle upwelling than the alkalic basalt. Our samples were collected from surface lava flows at Loihi's summit and along the volcano's south rift zone by submersible. Analyses were preformed using high-precision plasma ionization mass spectrometry. The samples display a relatively large range in the amount of excess 226Ra (0-13%) that extends to much lower values than observed at Kilauea Volcano (11-12%). The low (226Ra/230Th) ratios of Loihi lavas probably result from post-eruptive decay of 226Ra and imply eruption ages of 0-12 kyr. All of the Loihi samples (including the 1996 lava) have small amounts of excess 234U (0.2-0.8%). The most likely source for (234U/238U)>1 at Loihi is seawater, which has (234U/238U)=1.14. Since all of the samples were fresh, hand-picked glasses, these elevated (234U/238U) ratios may have resulted from the assimilation of a seawater-derived component within Loihi's magmatic plumbing system rather than post-eruptive U addition. The range of (230Th/238U) that we measured is 1.01-1.07, which is larger than the previous range known for Loihi. Mass balance calculations using the measured (234U/238U) ratios suggest that 1-6% of the U in the samples that we analyzed is ultimately derived from seawater. Correcting the 230Th-238U disequilibria of the Loihi lavas for this seawater-derived U results in a narrower range in the amount of excess 230Th (6-9%) with no significant differences between tholeiitic, transitional or alkalic basalts

  12. 41 CFR 102-73.230 - When must Federal agencies submit a prospectus to lease real property?

    Science.gov (United States)

    2010-07-01

    ... REGULATION REAL PROPERTY 73-REAL ESTATE ACQUISITION Acquisition by Lease Limitations on the Use of Delegated Authority § 102-73.230 When must Federal agencies submit a prospectus to lease real property? In accordance...

  13. {sup 10}Be/{sup 230}Th ratios as proxy for particle flux in the equatorial Pacific ocean

    Energy Technology Data Exchange (ETDEWEB)

    Anderson, R.F.; Fleisher, M.Q. [LDEO of Columbia Univ. (United States); Kubik, P.W. [Paul Scherrer Inst. (PSI), Villigen (Switzerland); Suter, M. [Eidgenoessische Technische Hochschule, Zurich (Switzerland)

    1997-09-01

    Particulate {sup 10}Be/{sup 230}Th ratios collected by sediment traps in the central equatorial Pacific Ocean exhibit a positive correlation with particle flux, but little or no correlation with particle composition. (author) 1 fig., 4 refs.

  14. 77 FR 2698 - Foreign-Trade Zone 230-Piedmont Triad Area, NC; Application for Reorganization Under Alternative...

    Science.gov (United States)

    2012-01-19

    ... FTZ 230's authorized subzones. In accordance with the Board's regulations, Kathleen Boyce of the FTZ... Kathleen Boyce at Kathleen.Boyce@trade.gov or (202) 482-1346. Dated: January 11, 2012. Andrew...

  15. HCV-specific immune responses induced by CIGB-230 in combination with IFN-α plus ribavirin.

    Science.gov (United States)

    Amador-Cañizares, Yalena; Martínez-Donato, Gillian; Alvarez-Lajonchere, Liz; Vasallo, Claudia; Dausá, Mariacarla; Aguilar-Noriega, Daylen; Valenzuela, Carmen; Raíces, Ivette; Dubuisson, Jean; Wychowski, Czeslaw; Cinza-Estévez, Zurina; Castellanos, Marlén; Núñez, Magdalys; Armas, Anny; González, Yaimé; Revé, Ismariley; Guerra, Ivis; Pérez Aguiar, Angel; Dueñas-Carrera, Santiago

    2014-01-07

    To analyze hepatitis C virus (HCV)-specific immune responses in chronically infected patients under triple therapy with interferon-α (IFN-α) plus ribavirin and CIGB-230. CIGB-230 was administered in different schedules with respect to IFN-α plus ribavirin therapy. Paired serum and peripheral blood mononuclear cells (PBMC) samples from baseline and end of treatment were analyzed. The HCV-specific humoral response was tested by enzyme-linked immunosorbent assay, neutralizing antibodies were evaluated by cell culture HCV neutralization assays, PBMC proliferation was assayed by carboxyfluorescein succinimidyl ester staining and IFN-γ secretion was assessed by enzyme-linked immunospot. Data on virological and histological response and their association with immune variables are also provided. From week 12 to week 48, all groups of patients showed a significant reduction in mean leukocyte counts. Statistically significant reductions in antibody titers were frequent, but only individuals immunized with CIGB-230 as early add-on treatment sustained the core-IgG response, and the neutralizing antibody response was enhanced only in patients receiving CIGB-230. Cell-mediated immune responses also tended to decline, but significant reductions in IFN-γ secretion and total absence of core-specific lymphoproliferation were exclusive of the control group. Only CIGB-230-immunized individuals showed de novo induced lymphoproliferative responses against the structural antigens. Importantly, it was demonstrated that the quality of the CIGB-230-induced immune response depended on the number of doses and timing of administration in relation to the antiviral therapy. Specifically, the administration of 6 doses of CIGB-230 as late add-on to therapy increased the neutralizing antibody activity and the de novo core-specific IFN-γ secretion, both of which were associated with the sustained virological response. CIGB-230, combined with IFN-α-based therapy, modifies the immune response

  16. Initial 230Th and isotopic compositions of U and Th in a Holocene stalagmite from Ninh Binh, Vietnam

    Science.gov (United States)

    Shen, C.; Sung, Y.; Chen, Y.; Ho, W.; Wang, X.; Galang, C.; Cheng, H.; Edwards, R.; Burr, G.; Lam, D.

    2003-12-01

    The application of the 238U-234U-230Th disequilibrium dating technique to cave carbonates has provided access to a valuable source of Quaternary environmental information. For some speleothems, however, the initial Th associated with the incorporation of detrital materials into the growing carbonate matrix can bias the true ages, which play a pivotal role in the paleo-sciences. Isochron techniques and development diagrams (Cheng et al., 2000, {\\ G.C.A.}, 64, 2401-2416) were used on a stalagmite with unusually high thorium concentrations of 5-130 ppm and low uranium concentration of 100-300 ppb, collected from Ninh Binh, Vietnam, in order to evaluate the initial 230Th values, 230Th/232Th ratios and ages. Uranium and thorium concentrations and isotopic compositions for forty subsamples collected from eight horizons of this 4600-yr old speleothem were analyzed by ICP-MS techniques (Shen et al., 2002, {\\ Chem. Geology}, 185, 165-178). Results from the application of isochron techniques were: (1) 50-90% of the 230Th was deposited initially and must be subtracted from measured 230Th in order to obtain accurate ages; (2) in some cases, discordant ages were obtained among subsamples on the same horizon if the same initial of 230Th/232Th was used for correction; (3) there was some variability in the initial 230Th/232Th values for different layers. These observations indicate that there are many Th sources with different concentrations and 230Th/232Th ratios introduced into growing layers during crystallization. Accordingly, the initial values of 230Th/232Th ratios vary between and within horizons. Such heterogeneous coprecipitation of detrital materials places some limits on the utility of simple two-dimensional isochron approaches to speleothems with large and complicated Th contamination, which enhances the uncertainty of estimated ages. If the development diagram technique is also employed, the initial values of 230Th/232Th ratios are more tightly constrained, varying

  17. Development of an improved extruded dielectric cable rated 230 kV

    Energy Technology Data Exchange (ETDEWEB)

    Blais, L D; Traut, R T; Bolden, G N

    1977-05-01

    Work performed on developing an improved 230 kV extruded solid dielectric cable, the techniques of jointing such cables and the testing of terminations suitable for operation at that voltage level are described. Difficulties were encountered during manufacture in applying the semi-conducting extruded conductor shield. A new higher melt point compound solved the problem. A joint capable of operating at the 230 kV level was developed but showed a deficiency under voltage impulse testing while the conductor was at elevated temperature. A reduction in contract scope terminated this effort. Two terminals rated for 230 kV were found to be commercially available from domestic manufacturers. The limited testing performed showed them to be compatible with the cable cross-linked polyethylene insulation and electrically sound under 60 Hertz testing. No direct voltage or impulse voltage testing was performed on the terminations. A sample circuit, consisting of cable and joint, was subjected to impulse voltages at both room temperature and normal conductor operating temperature of 90/sup 0/C. While the cable only was able to withstand voltage impulses in excess of the Basic Impulse Level (BIL) at room temperature, it failed at BIL while conductor was heated to 90/sup 0/C. In like manner, a cable and joint circuit was assembled. Similar voltages were impressed at room temperature without incident. The joint failed at 90/sup 0/C conductor temperature. Cable, joint and termination were assembled in a simulated circuit and subjected to conductor loading to elevate temperature while 60 Hz voltages in excess of normal operating levels were continuously applied.

  18. Potential Energy Surfaces of the Even-Even 230-238 U Isotopes

    Directory of Open Access Journals (Sweden)

    Diab S. M.

    2008-07-01

    Full Text Available Nuclear structure of 230 - 238 U isotopes have been studied in the frame work of the in- teracting boson approximation model (IBM-I. The contour plot of the potential energy surfaces, V ( ; , shows that all nuclei are deformed and have rotational char- acters, SU (3 . Levels energy spectra belonging to the gsb , , bands, electromagnetic transition rates B ( E 1 and B ( E 2 , quadrupole moment Q 0 , deformation parameterare 2 and the strength of the electric monopole transitions X ( E 0 =E 2 are calculated. The calculated values are compared with the available theoretical and experimental data and show reasonable agreement.

  19. Sidney-North Yuma 230-kV Transmission Line Project, Colorado and Nebraska

    Energy Technology Data Exchange (ETDEWEB)

    1991-06-01

    This report describes the need for a 230-kV overhead transmission line to supply power from Sidney, Nebraska to eastern Colorado. The alternative scenario compared to construction of the line is No Action. Rejected alternatives include underground lines and different routing paths, with a possible extension to the Sterling area. Both scenarios are evaluated for environmental effects, cost, and consequences for the eastern Colorado region. The proposed route is determined to be the environmentally preferred choice. 120 refs., 6 figs., 13 tabs. (MHB)

  20. Identification of Vibrational States in 230Th(n, f) Reaction

    Institute of Scientific and Technical Information of China (English)

    A.N. Behkami; Z. Kargar; M.N. Nasrabadi

    2001-01-01

    The excitation function for the fission of 230Th induced by neutrons has an unusual maximum for neutron energies in the vicinity of 700 KeV. It has been suggested that this maximum may be associated with the vibrational-mode resonance states. The unusual peak in the excitation function is interpreted in terms of a vibrational-mode resonance state in a two-humpted fission barrier. From theoretical fits to the fission cross sections and angular distributions, it is shown that the resonance has K = 1/2.``

  1. Distribution of Th-230 and Th-228 in foods(II)

    Energy Technology Data Exchange (ETDEWEB)

    Kang, Hee Dong; Kim, Wan; Lim, S. K.; Lee, S. A.; Choi, M. S.; Zheng, Y. C. [Kyungpook National Univ., Daegu (Korea, Republic of); Kim, Do Sung [Daegu Univ., Daegu (Korea, Republic of)

    2004-02-15

    Natural radioisotopes contained in foods can enter the human body by ingestion and contribute to internal doses to the population. It is necessary to measure the concentration of natural radioisotopes especially thorium in Korean foods and estimate the internal doses. In this study, we have established the thorium measuring process based on the thorium extraction chemical process and alpha spectroscopic method. The concentration of Th-228, Th-230 and Th-232 in Korean vegetables (potato, sweet potato, radish, cabbage, hot pepper, garlic, onion and pumpkin) and fruits(apple, persimmon, orange, pear, grape) are measured and their internal doses are estimated.

  2. Comparative uptake of thorium-230, radium-226, lead-210 and polonium-210 by plants

    Energy Technology Data Exchange (ETDEWEB)

    D' Souza, T.J.; Mistry, K.B.

    1970-01-01

    The entry and translocation of /sup 230/thorium, /sup 226/radium, /sup 210/lead, and /sup 210/polonium were examined in nutrient culture experiments. Strontium-89 was included for comparison. Red kidney beans (Phaseolus vulgaris L.) were treated for a period of 15 days. Results indicate that accumulation of /sup 230/thorium, /sup 210/lead and /sup 210/polonium occurs predominantly in roots and only very small amounts of these nuclides are translocated to shoots. Over comparable periods, the accumulation of /sup 226/radium in roots is 2-3 times lower than that of the other nuclides of uranium series. However, the most significant difference between /sup 226/radium and other nuclides is in the extent of their upward transport which for radium is 50-200 times greater. The amount of radium translocated to shoots is comparable to that of strontium. The present evidence of rapid transfer of /sup 226/radium to shoots suggests that among the nuclides examined, /sup 226/radium is likely to make the major contribution to radioactivity in aerial tissues of plants grown under conditions where root absorption is the principal route of entry of the nuclides.

  3. Biaxial thermal creep of Alloy 617 An Alloy 230 for VHTR applications

    Energy Technology Data Exchange (ETDEWEB)

    Mo, Kun; Lv, Wei; Tung, Hsiao-Ming; Yun, Di; Miao, Yinbin; Lan, Kuan-Che; Stubbins, James F.

    2016-07-01

    In this study, we employed pressurized creep tubes to investigate the biaxial thermal creep behavior of Inconel 617 (alloy 617) and Haynes 230 (alloy 230). Both alloys are considered to he the primary candidate structural materials for very high-temperature reactors (VITITRs) due to their exceptional high-temperature mechanical properties. The current creep experiments were conducted at 900 degrees C for the effective stress range of 15-35 MPa. For both alloys, complete creep strain development with primary, secondary, and tertiary regimes was observed in all the studied conditions. Tertiary creep was found to he dominant over the entire creep lives of both alloys. With increasing applied creep stress, the fraction of the secondary creep regime decreases. The nucleation, diffusion, and coarsening of creep voids and carbides on grain boundaries were found to be the main reasons for the limited secondary regime and were also found to be the major causes of creep fracture. The creep curves computed using the adjusted creep equation of the form epsilon= cosh 1(1 rt) + P-sigma ntm agree well with the experimental results for both alloys at die temperatures of 850-950 degrees C.

  4. Investigation of station blackout scenario in VVER440/v230 with RELAP5 computer code

    Energy Technology Data Exchange (ETDEWEB)

    Gencheva, Rositsa Veselinova, E-mail: roseh@mail.bg; Stefanova, Antoaneta Emilova, E-mail: antoanet@inrne.bas.bg; Groudev, Pavlin Petkov, E-mail: pavlinpg@inrne.bas.bg

    2015-12-15

    Highlights: • We have modeled SBO in VVER440. • RELAP5/MOD3 computer code has been used. • Base case calculation has been done. • Fail case calculation has been done. • Operator and alternative operator actions have been investigated. - Abstract: During the development of symptom-based emergency operating procedures (SB-EOPs) for VVER440/v230 units at Kozloduy Nuclear Power Plant (NPP) a number of analyses have been performed using the RELAP5/MOD3 (Carlson et al., 1990). Some of them investigate the response of VVER440/v230 during the station blackout (SBO). The main purpose of the analyses presented in this paper is to identify the behavior of important VVER440 parameters in case of total station blackout. The RELAP5/MOD3 has been used to simulate the SBO in VVER440 NPP model (Fletcher and Schultz, 1995). This model was developed at the Institute for Nuclear Research and Nuclear Energy, Bulgarian Academy of Sciences (INRNE-BAS), Sofia, for analyses of operational occurrences, abnormal events and design based scenarios. The model provides a significant analytical capability for specialists working in the field of NPP safety.

  5. Holocene Paleocirculation from 231Pa/230Th in Sediments from the North Atlantic Ocean

    Science.gov (United States)

    McManus, J.; Francois, R.; Major, C.; Gherardi, J.; Hoffman, S.

    2004-12-01

    A new record of bulk sedimentary 231Pa/230Th excesses from core GGC5 on the Bermuda Rise has been produced by ICP-MS. The record reveals several aspects of the strength of the meridional overturning circulation during the last ten thousand years. Measurements of uranium, protactinium and thorium in the Holocene section recovered in GGC5 have been resolved at approximately 200-300 years, similar to the response time of excess 231Pa in the water column, and therefore should capture any large departure from modern values in the 231Pa/230Th indicator of paleocirculation. No dramatic increase in ratio or decrease in circulation is indicated by the data, which suggest vigorous overturning in the western basin of the North Atlantic since the end of the Younger Dryas. Instead of large changes in circulation, a series of oscillations punctuates the middle Holocene, indicating a variability of 10-20 percent in the rate of meridional overturning. Specific attention will be paid to millennial events postulated at 8.2 kyr, ~5 kyr, and in the most recent Holocene.

  6. First 230 GHz VLBI Fringes on 3C 279 using the APEX Telescope

    CERN Document Server

    Wagner, J; Krichbaum, T P; Alef, W; Bansod, A; Bertarini, A; Güsten, R; Graham, D; Hodgson, J; Märtens, R; Menten, K; Muders, D; Rottmann, H; Tuccari, G; Weiss, A; Wieching, G; Wunderlich, M; Zensus, J A; Araneda, J P; Arriagada, O; Cantzler, M; Duran, C; Montenegro-Montes, F M; Olivares, R; Caro, P; Bergman, P; Conway, J; Haas, R; Johansson, J; Lindqvist, M; Olofsson, H; Pantaleev, M; Buttaccio, S; Cappallo, R; Crew, G; Doeleman, S; Fish, V; Lu, R -S; Ruszczyk, C; SooHoo, J; Titus, M; Freund, R; Marrone, D; Strittmatter, P; Ziurys, L; Blundell, R; Primiani, R; Weintroub, J; Young, K; Bremer, M; Sánchez, S; Marscher, A P; Chilson, R; Asada, K; Inoue, M

    2015-01-01

    We report about a 230 GHz very long baseline interferometry (VLBI) fringe finder observation of blazar 3C 279 with the APEX telescope in Chile, the phased submillimeter array (SMA), and the SMT of the Arizona Radio Observatory (ARO). We installed VLBI equipment and measured the APEX station position to 1 cm accuracy (1 sigma). We then observed 3C 279 on 2012 May 7 in a 5 hour 230 GHz VLBI track with baseline lengths of 2800 M$\\lambda$ to 7200 M$\\lambda$ and a finest fringe spacing of 28.6 micro-arcseconds. Fringes were detected on all baselines with SNRs of 12 to 55 in 420 s. The correlated flux density on the longest baseline was ~0.3 Jy/beam, out of a total flux density of 19.8 Jy. Visibility data suggest an emission region <38 uas in size, and at least two components, possibly polarized. We find a lower limit of the brightness temperature of the inner jet region of about 10^10 K. Lastly, we find an upper limit of 20% on the linear polarization fraction at a fringe spacing of ~38 uas. With APEX the angul...

  7. Advances in Solid State Joining of Haynes 230 High Temperature Alloy

    Science.gov (United States)

    Ding, R. Jeffrey; Schneider, Judy; Walker, Bryant

    2010-01-01

    The J-2X engine is being designed for NASA s new class of crew and launch vehicles, the Ares I and Ares V. The J-2X is a LOX/Hydrogen upper stage engine with 294,000 lbs of thrust and a minimum Isp of 448 seconds. As part of the design criteria to meet the performance requirements a large film-cooled nozzle extension is being designed to further expand the hot gases and increases the specific impulse. The nozzle extension is designed using Haynes 230, a nickel-chromium-tungsten-molybdenum superalloy. The alloy was selected for its high strength at elevated temperatures and resistance to hydrogen embrittlement. The nozzle extension is manufactured from Haynes 230 plate spun-forged to form the contour and chemically-milled pockets for weight reduction. Currently fusion welding is being evaluated for joining the panels which are then mechanically etched and thinned to required dimensions for the nozzle extension blank. This blank is then spun formed into the parabolic geometry required for the nozzle. After forming the nozzle extension, weight reduction pockets are chemically milled into the nozzle. Fusion welding of Haynes results in columnar grains which are prone to hot cracking during forming processes. This restricts the ability to use spin forging to produce the nozzle contour. Solid state joining processes are being pursued as an alternative process to produce a structure more amenable to spin forming. Solid state processes have been shown to produce a refined grain structure within the joint regions as illustrated in Figure 1. Solid state joining processes include friction stir welding (FSW) and a patented modification termed thermal stir welding (TSW). The configuration of TSWing utilizes an induction coil to preheat the material minimizing the burden on the weld tool extending its life. This provides the ability to precisely select and control the temperature. The work presented in this presentation investigates the feasibility of joining the Haynes 230

  8. Multi-scale crack closure measurements with digital image correlation on Haynes 230

    Directory of Open Access Journals (Sweden)

    Stefano Beretta

    2015-07-01

    Full Text Available An experimental campaign was developed to study fatigue crack growth in Haynes 230, a Ni-based superalloy. The effects of crack closure were investigated with digital image correlation, by applying two different approaches. Initially, full field regression algorithms were applied to extract the effective stress intensity factor ranges from the singular displacement field measured at crack tips. Local closure measurements were then performed by considering crack flanks relative displacements. Two points virtual extensometers were applied in this phase. Experimental results were then compared to the reference da/dN –ΔKeff curve: it was found that the correct estimation of crack opening levels shifts all the experimental points on the reference curve, showing that DIC can be successfully applied to measure crack closure effects.

  9. Epidemiological aspects of penile cancer in Rio de Janeiro: evaluation of 230 cases

    Directory of Open Access Journals (Sweden)

    Leandro Koifman

    2011-04-01

    Full Text Available PURPOSE: To determine epidemiological characteristics of penile cancer in Rio de Janeiro, its associated risk factors and clinical manifestations. PATIENTS AND METHODS: Between 2002 and 2008 we evaluated 230 patients at three public institutions, considering age, ethnicity, birthplace, marital status, educational level, religion, tobacco smoking, presence of phimosis and practice of circumcision. RESULTS: The ages ranged from 25 to 98 years, with an average of 58.35 years. Of the 230 patients, 167 (72.7% were from the southeast region of Brazil (which includes Rio de Janeiro and 45 (19.5% were from the northeast of the country. Most patients were white (67.3%, married (58.6%, smokers (56.5% and had not completed primary school (71.3%. The predominant religion was Catholic (74.8%. Of the 46 (20% circumcised patients, only 1 (2.2% had undergone neonatal circumcision. Grade I tumors were present in 87 (37.8% of the patients, grade II in 131 (56.9% and grade III in 12 (5.3%. Lymphovascular embolization was observed in 63 (27.3% and koilocytosis in 124 (53.9% patients. Of the total, 41.3% had corpora cavernosa or corpus spongiosum infiltration, and 40 (17.4% had urethral invasion. Prophylactic lymphadenectomy was performed on 56 (36.1%, therapeutic lymphadenectomy on 84 (54.2% and hygienic lymphadenectomy for advanced disease on 15 (9.7% patients. The median time between the lesion onset and clinical diagnosis was 13.2 months. The mean follow up was 28.8 months. CONCLUSION: Most of our patients were born in this state and had low socioeconomic status. Most of them were white men, married, smokers, uncircumcised, of the Catholic faith and in their sixties or older. Their disease was in most cases diagnosed only in the advanced stages.

  10. EXPERIENCE OF INGUINAL HERNIA REPAIR IN 230 PATIENTS BY LICHTENSTEIN TECHNIQUE

    Directory of Open Access Journals (Sweden)

    Mahesh

    2016-01-01

    Full Text Available BACKGROUND The main aim of the surgeon is to lower the recurrence rate while dealing the defect in inguinal canal. Lichtenstein technique has opened a new era in such repairs. In our study we have evaluated 230 patients who have undergone mesh repair in inguinal hernias by Lichtenstein technique. MATERIAL AND METHODS The study was done prospectively from September 2013 to August 2015. Surgery related complications, operative time, hospital stay and return to routine activities were recorded. All the patients with age more than 15 years were included in this study; however patients with medical diseases like diabetes mellitus and chronic obstructive pulmonary disease were not included. Also patients with complications of hernia having features of obstruction or strangulation were also excluded from this study. RESULTS Out of 230 patients, 223 patients (96.95% were male and 07 patients (3.04% were female. Indirect inguinal hernia was present in 122 patients (53.04%, direct inguinal hernia in 93 (40.43% and pantaloon hernia in 15 patients (6.5%. The incidence of unilateral hernia was 75.21% whereas bilateral hernia was observed only in 24.78% patients. Postoperative seroma and haematoma was observed in 3 and 1 patient respectively which were drained successfully. None of our patients encountered postoperative neuralgia, wound infection or recurrence till date. CONCLUSION Lichtenstein technique of inguinal hernia repair in adults is still considered as the method of choice by many surgeons around the world in lieu of its simplicity in performing the procedure, minimum postoperative complications, early recovery with return to normal activities, less hospital stay and very low recurrence rate.

  11. 39 CFR 230.27 - Do these rules create any right or benefit enforceable by a party against the Postal Service?

    Science.gov (United States)

    2010-07-01

    ... 39 Postal Service 1 2010-07-01 2010-07-01 false Do these rules create any right or benefit enforceable by a party against the Postal Service? 230.27 Section 230.27 Postal Service UNITED STATES POSTAL... rules create any right or benefit enforceable by a party against the Postal Service? No, subpart B is...

  12. The novel somatostatin analog SOM230 is a potent inhibitor of hormone release by growth hormone- and prolactin-secreting pituitary adenomas in vitro

    NARCIS (Netherlands)

    L.J. Hofland (Leo); A-J. van der Lely (Aart-Jan); S.W.J. Lamberts (Steven); A. Beckers (Albert); J. van der Hoek (Joost); P.M. van Koetsveld (Peter); W.W. de Herder (Wouter); M. Waaijers (Marlijn); D. Sprij-Mooij (Diana); C. Bruns (Christian); G. Weckbecker (Gisbert); R.A. Feelders (Richard)

    2004-01-01

    textabstractTo determine the inhibitory profile of the novel somatostatin (SRIF) analog SOM230 with broad SRIF receptor binding, we compared the in vitro effects of SOM230, octreotide (OCT), and SRIF-14 on hormone release by cultures of different types of secreting pituitary adenom

  13. 41 CFR 102-118.230 - What if my agency creates or eliminates a field office approved to prepare transportation documents?

    Science.gov (United States)

    2010-07-01

    ... 41 Public Contracts and Property Management 3 2010-07-01 2010-07-01 false What if my agency creates or eliminates a field office approved to prepare transportation documents? 102-118.230 Section 102-118.230 Public Contracts and Property Management Federal Property Management Regulations System (Continued) FEDERAL MANAGEMENT...

  14. 17 CFR 230.191 - Definition of “issuer” in section 2(a)(4) of the Act in relation to asset-backed securities.

    Science.gov (United States)

    2010-04-01

    ... section 2(a)(4) of the Act in relation to asset-backed securities. 230.191 Section 230.191 Commodity and... securities. The following applies with respect to asset-backed securities under the Act. Terms used in this... depositor for the asset-backed securities acting solely in its capacity as depositor to the issuing entity...

  15. 76 FR 61776 - 60-Day Notice of Proposed Information Collection: DS-230, Application for Immigrant Visa and...

    Science.gov (United States)

    2011-10-05

    ... Notice of Proposed Information Collection: DS-230, Application for Immigrant Visa and Alien Registration... of 1995. Title of Information Collection: Application for Immigrant Visa and Alien Registration. OMB... eligibility of aliens applying for immigrant visas that have not completed the DS-260, Online Immigrant...

  16. CHARGE-EXCHANGE SCATTERING OF NEGATIVE PIONS BY HYDROGEN AT 230,260, 290, 317 AND 371 MeV

    Energy Technology Data Exchange (ETDEWEB)

    Caris, John C

    1960-03-18

    The differential cross section for charge-exchange scattering of negative pions by hydrogen has been observed at 230, 260, 290, 317, and 371 Mev. The reaction was observed by detecting one gamma ray from the {pi}{sup 0} decay with a scintillation-counter telescope.

  17. 32 CFR 37.230 - May I use a TIA if a participant is to receive fee or profit?

    Science.gov (United States)

    2010-07-01

    ... DEFENSE DoD GRANT AND AGREEMENT REGULATIONS TECHNOLOGY INVESTMENT AGREEMENTS Appropriate Use of Technology Investment Agreements § 37.230 May I use a TIA if a participant is to receive fee or profit? In accordance... this policy extends to all performers of the research project carried out under the TIA, including...

  18. 77 FR 38838 - Compliance Policy Guide Sec. 230.110-Registration of Blood Banks, Other Firms Collecting...

    Science.gov (United States)

    2012-06-29

    ... Banks, Other Firms Collecting, Manufacturing, Preparing, or Processing Human Blood or Blood Products... Registration of Blood Banks, Other Firms Collecting, Manufacturing, Preparing, or Processing Human Blood or... INFORMATION: FDA issued the CPG entitled ``Sec. 230.110 Registration of Blood Banks, Other Firms...

  19. 17 CFR 230.489 - Filing of form by foreign banks and insurance companies and certain of their holding companies...

    Science.gov (United States)

    2010-04-01

    ... banks and insurance companies and certain of their holding companies and finance subsidiaries. 230.489... form by foreign banks and insurance companies and certain of their holding companies and finance... is a finance subsidiary of a foreign bank or foreign insurance company, as those terms are defined...

  20. 17 CFR 230.160 - Registered investment company exemption from Section 101(c)(1) of the Electronic Signatures in...

    Science.gov (United States)

    2010-04-01

    ... exemption from Section 101(c)(1) of the Electronic Signatures in Global and National Commerce Act. 230.160...(c)(1) of the Electronic Signatures in Global and National Commerce Act. A prospectus for an... 101(c)(1) of the Electronic Signatures in Global and National Commerce Act....

  1. Naturally acquired antibody responses to recombinant Pfs230 and Pfs48/45 transmission blocking vaccine candidates

    DEFF Research Database (Denmark)

    Jones, Sophie; Grignard, Lynn; Nebie, Issa;

    2015-01-01

    OBJECTIVES: Pfs48/45 and Pfs230 are Plasmodium falciparum sexual stage proteins and promising malaria transmission-blocking vaccine candidates. Antibody responses against these proteins may be naturally acquired and target antigens may be under selective pressure. This has consequences for the fu...

  2. 230Th/U dating of Last Interglacial brain corals from Bonaire (southern Caribbean) using bulk and theca wall material

    Science.gov (United States)

    Obert, J. Christina; Scholz, Denis; Felis, Thomas; Brocas, William M.; Jochum, Klaus P.; Andreae, Meinrat O.

    2016-04-01

    We compared the suitability of two skeletal materials of the Atlantic brain coral Diploria strigosa for 230Th/U-dating: the commonly used bulk material comprising all skeletal elements and the denser theca wall material. Eight fossil corals of presumably Last Interglacial age from Bonaire, southern Caribbean Sea, were investigated, and several sub-samples were dated from each coral. For four corals, both the ages and the activity ratios of the bulk material and theca wall agree within uncertainty. Three corals show significantly older ages for their bulk material than for their theca wall material as well as substantially elevated 232Th content and (230Th/238U) ratios. The bulk material samples of another coral show younger ages and lower (230Th/238U) ratios than the corresponding theca wall samples. This coral also contains a considerable amount of 232Th. The application of the available open-system models developed to account for post-depositional diagenetic effects in corals shows that none of the models can successfully be applied to the Bonaire corals. The most likely explanation for this observation is that the assumptions of the models are not fulfilled by our data set. Comparison of the theca wall and bulk material data enables us to obtain information about the open-system processes that affected the corals. The corals showing apparently older ages for their bulk material were probably affected by contamination with a secondary (detrital) phase. The most likely source of the detrital material is carbonate sand. The higher (230Th/232Th) ratio of this material implies that detrital contamination would have a much stronger impact on the ages than a contaminant with a bulk Earth (230Th/232Th) ratio and that the threshold for the commonly applied 232Th reliability criterion would be much lower than the generally used value of 1 ng g-1. The coral showing apparently younger ages for its bulk material was probably influenced by more than one diagenetic process. A

  3. Improvements in 230Th dating, 230Th and 234U half-life values, and U-Th isotopic measurements by multi-collector inductively coupled plasma mass spectrometry

    Science.gov (United States)

    Cheng, Hai; Lawrence Edwards, R.; Shen, Chuan-Chou; Polyak, Victor J.; Asmerom, Yemane; Woodhead, Jon; Hellstrom, John; Wang, Yongjin; Kong, Xinggong; Spötl, Christoph; Wang, Xianfeng; Calvin Alexander, E.

    2013-06-01

    We have developed techniques for measuring 234U and 230Th on Faraday cups with precisions of 1-3 epsilon units (1 ɛ-unit=1 part in 104) using multi-collector inductively coupled plasma mass spectrometry (MC-ICP-MS). Using a Thermo-Scientific Neptune with desolvation nebulization, we obtained ionization/transmission efficiencies of 1-2% for both U and Th. We set up protocols to correct for tailing, prepared U and Th gravimetric standards, tested a Th mass fractionation correction procedure based on U isotopes, and identified natural calcite samples likely to be in U-Th isotopic secular equilibrium. The measured atomic ratios, 234U/238U=54.970 (±0.019)×10-6 and 230Th/238U=16.916 (±0.018)×10-6, for these calcite samples were identical within errors (quoted 2σ uncertainties calculated combining all sources of error). Half-life values calculated from these ratios are consistent with previous values, but have much smaller errors: 245,620±260 a for 234U and 75,584±110 a for 230Th (quoted 2σ uncertainties calculated using all sources of error). In calculating a 230Th age, some of the systematic errors included in estimating the full error in the half-lives effectively cancel. Removing these uncertainties (uncertainty in the 238U half-life value, uncertainty in our gravimetric uranium and thorium standards, and uncertainty in the absolute isotopic composition of the uranium standard), yields effective uncertainties for the purposes of 230Th dating of ±70 a for the 234U half-life value and ±30 a for the 230Th half-life value. Under ideal circumstances, with our methods, the 2σ uncertainty in age, including uncertainty in half-life values is ±10 a at 10 ka, ±100 a at 130 ka, ±300 a at 200 ka, ±1 ka at 300 ka, ±2 ka at 400 ka, ±6 ka at 500 ka, and ±12 ka at 600 ka. The isotopic composition of a sample with an age determined independent of the Sanbao Cave ages, the observed co-variation between stalagmite δ18O and Northern Hemisphere summer insolation is

  4. 230Th-234U Age-Dating Uranium by Mass Spectrometry

    Energy Technology Data Exchange (ETDEWEB)

    Williams, R W; Gaffney, A M

    2012-04-18

    This is the standard operating procedure used by the Isotope Ratio Mass Spectrometry Group of the Chemical Sciences Division at LLNL for the preparation of a sample of uranium oxide or uranium metal for {sup 230}Th-{sup 234}U age-dating. The method described here includes the dissolution of a sample of uranium oxide or uranium metal, preparation of a secondary dilution, spiking of separate aliquots for uranium and thorium isotope dilution measurements, and purification of uranium and thorium aliquots for mass spectrometry. This SOP may be applied to uranium samples of unknown purity as in a nuclear forensic investigation, and also to well-characterized samples such as, for example, U{sub 3}O{sub 8} and U-metal certified reference materials. The sample of uranium is transferred to a quartz or PFA vial, concentrated nitric acid is added and the sample is heated on a hotplate at approximately 100 C for several hours until it dissolves. The sample solution is diluted with water to make the solution approximately 4 M HNO{sub 3} and hydrofluoric acid is added to make it 0.05 M HF. A secondary dilution of the primary uranium solution is prepared. Separate aliquots for uranium and thorium isotope dilution measurements are taken and spiked with {sup 233}U and {sup 229}Th, respectively. The spiked aliquot for uranium isotope dilution analysis is purified using EiChrom UTEVA resin. The spiked aliquot for thorium isotope dilution analysis is purified by, first, a 1.8 mL AG1x8 resin bed in 9 M HCl on which U adsorbs and Th passes through; second, adsorbing Th on a 1 mL AG1x8 resin bed in 8 M HNO{sub 3} and then eluting it with 9 M HCl followed by 0.1 M HCl + 0.005 M HF; and third, by passing the Th through a final 1.0 mL AG1x8 resin bed in 9 M HCl. The mass spectrometry is performed using the procedure 'Th and U Mass Spectrometry for {sup 230}Th-{sup 234}U Age Dating'.

  5. Meridional circulation across the Antarctic Circumpolar Current serves as a double 231Pa and 230Th trap

    Science.gov (United States)

    Rutgers van der Loeff, Michiel; Venchiarutti, Celia; Stimac, Ingrid; van Ooijen, Jan; Huhn, Oliver; Rohardt, Gerd; Strass, Volker

    2016-12-01

    Upwelling of Circumpolar Deep Water in the Weddell Gyre and low scavenging rates south of the Antarctic Circumpolar Current (ACC) cause an accumulation of particle reactive nuclides in the Weddell Gyre. A ventilation/reversible scavenging model that successfully described the accumulation of 230Th in this area was tested with other particle reactive nuclides and failed to adequately describe the depth-distributions of 231Pa and 210Pb. We present here a modified model that includes a nutrient-like accumulation south of the Antarctic Polar Front in an upper meridional circulation cell, as well as transport to a deep circulation cell in the Weddell Gyre by scavenging and subsequent release at depth. The model also explains depletion of 231Pa and 230Th in Weddell Sea Bottom Water (WSBW) by ventilation of newly formed deep water on a timescale of 10 years, but this water mass is too dense to leave the Weddell Gyre. In order to quantify the processes responsible for the 231Pa- and 230Th-composition of newly formed Antarctic Bottom Water (AABW) we present a mass balance of 231Pa and 230Th in the Atlantic sector of the Southern Ocean based on new data from the GEOTRACES program. The ACC receives 6.0 ± 1.5 ×106 dpms-1 of 230Th from the Weddell Sea, similar in magnitude to the net input of 4.2 ± 3.0 ×106 dpms-1 from the north. For 231Pa, the relative contribution from the Weddell Sea is much smaller, only 0.3 ± 0.1 ×106, compared to 2.7 ± 1.4 ×106 dpms-1 from the north. Weddell Sea Deep Water (WSDW) leaving the Weddell Gyre northward to form AABW is exposed in the ACC to resuspended opal-rich sediments that act as efficient scavengers with a Th/Pa fractionation factor F ≤ 1. Hydrothermal inputs may provide additional removal with low F. Scavenging in the full meridional circulation across the opal-rich ACC thus acts as a double 231Pa and 230Th trap that preconditions newly formed AABW.

  6. Childhood systemic lupus erythematosus in Latin America. The GLADEL experience in 230 children.

    Science.gov (United States)

    Ramírez Gómez, L A; Uribe Uribe, O; Osio Uribe, O; Grisales Romero, H; Cardiel, M H; Wojdyla, D; Pons-Estel, B A; Catoggio, Luis J; Soriano, Enrique R; Imamura, Patricia M; Manni, Jorge A; Grimaudo, Sebastián; Sarano, Judith; Maldonado-Cocco, José A; Arriola, Maria S; Gómez, Graciela; García, Mercedes A; Marcos, Ana Inés; Marcos, Juan Carlos; Scherbarth, Hugo R; Marino, Pilar C; Motta, Estela L; Drenkard, Cristina; Gamron, Susana; Buliubasich, Sandra; Onetti, Carlos M; Caeiro, Francisco; Alvarellos, Alejandro; Saurit, Verónica; Gentiletti, Silvana; Quagliatto, Norberto; Gentiletti, Alberto A; Machado, Daniel; Abdala, Marcelo; Palatnik, Simón; Berbotto, Guillermo A; Battagliotti, Carlos A; Sato, Emilia; Sella, Elaine M C; Souza, AlexandreW S; Costallat, Lilian T Lavras; Bertolo, Manoel Barros; Coimbra, Ibsen Bellini; Borba Neto, Eduardo Ferreira; Bonfá, Eloisa; Tavares, João Carlos; Brenol; Xavier, Ricardo; Mucenic, Tamara; Cavalcanti, Fernando de Souza; Duarte, Angela Luzia Branco; Marques, Cláudia Diniz Lopes; Da Silva, Nilzio Antonio; de O e Silva, Ana Carolina; Pacheco, Tatiana Ferracine; Molina-Restrepo, José Fernando; Molina-López, Javier; Iglesias-Gamarra, Antonio; Iglesias-Rodríguez, Antonio; Egea-Bermejo, Eduardo; Guzmán-Moreno, Renato A; Restrepo-Suárez, José F; Guibert-Toledano, Marlene; Reyes-Llerena, Gil Alberto; Massardo, Loreto; Gareca, Néstor; Jacobelli, Sergio; Neira, Oscar J; Guzmán, Leonardo R; Garcia-Kutzbach, Abraham; Castellanos, Claudia; Cajas, Erwin; Pascual-Ramos, Virginia; Barile-Fabris, Leonor A; Miranda-Limón, Juan Manuel; Amigo, Mary-Carmen; Silveira, Luis H; De La Torre, Ignacio García; Orozco-Barocio, Gerardo; Estrada-Contreras, Magali L; del Pozo, Maria Josefina Sauza; Aranda Baca, Laura E; Quezada, Adelfia Urenda; Huerta-Yáñez, Guillermo F; Acevedo-Vásquez, Eduardo M; Alfaro-Lozano, José Luis; Cucho-Venegas, Jorge M; Segami, Maria Inés; Chung, Cecilia P; Alva-Linares, Magaly; Abadi, Isaac; Chacón-Díaz, Rosa; Al Snih Al Snih, Soham; Esteva-Spinetti, Maria H; Vivas, Jorge

    2008-06-01

    To evaluate disease characteristics of childhood onset SLE in Latin America and to compare this information with an adult population in the same cohort of GLADEL. A protocol was designed as a multicenter, multinational, inception cohort of lupus patients to evaluate demographic, clinical, laboratory and serological variables, as well as classification criteria, disease activity, organ damage and mortality. Descriptive statistics, chi square, Fisher's exact test, Student's t test and multiple logistic regression were used to compare childhood and adult onset SLE. 230 patients were <18 years and 884 were adult SLE patients. Malar rash, fever, oral ulcers, thrombocytopenia and hemolytic anemia and some neurologic manifestations were more prevalent in children (p<0.05). On the other hand, myalgias, Sjögren's syndrome and cranial nerve involvement were more frequently seen in adults (p<0.05). Afro-Latin-American children had a higher prevalence of fever, thrombocytopenia and hemolytic anemia. White and mestizo children had a higher prevalence of malar rash. Mestizo children had a higher prevalence of cerebrovascular disease and cranial nerve involvement. Children met SLE ACR criteria earlier with higher mean values than adults (p: 0.001). They also had higher disease activity scores (p: 0.01), whereas adults had greater disease damage (p: 0.02). In Latin America, childhood onset SLE seems to be a more severe disease than adults. Some differences can be detected among ethnic groups.

  7. Masses and Ages for 230,000 LAMOST Giants, via Their Carbon and Nitrogen Abundances

    CERN Document Server

    Ho, Anna Y Q; Ness, Melissa K; Hogg, David W; Liu, Chao; Ting, Yuan-Sen

    2016-01-01

    We measure carbon and nitrogen abundances to $\\lesssim$ 0.1 dex for 450,000 giant stars from their low-resolution (R$\\sim$1800) LAMOST DR2 survey spectra. We use these [C/M] and [N/M] measurements, together with empirical relations based on the APOKASC sample, to infer stellar masses and implied ages for 230,000 of these objects to 0.08 dex and 0.2 dex respectively. We use The Cannon, a data-driven approach to spectral modeling, to construct a predictive model for LAMOST spectra. Our reference set comprises 8125 stars observed in common between the APOGEE and LAMOST surveys, taking seven APOGEE DR12 labels (parameters) as ground truth: Teff, logg, [M/H], [$\\alpha$/M], [C/M], [N/M], and Ak. We add seven colors to the Cannon model, based on the g, r, i, J, H, K, W1, and W2 magnitudes from APASS, 2MASS & WISE, which improves our constraints on Teff and logg by up to 20% and on Ak by up to 70%. Cross-validation of the model demonstrates that, for high-SNR objects, our inferred labels agree with the APOGEE val...

  8. Radio Galaxy 3C 230 Observed with Gemini Laser-Adaptive-Optics Integral-Field Spectroscopy

    CERN Document Server

    Steinbring, Eric

    2011-01-01

    The Altair laser-guide-star adaptive optics facility combined with the Near-Infrared Integral Field Spectrometer (NIFS) on Gemini North have been employed to study the morphology and kinematics of 3C 230 at z=1.5, the first such observations of a high-redshift radio galaxy. These suggest a bi-polar outflow spanning 0"9 (~16 kpc projected distance for a standard lambda-CDM cosmology) reaching a mean relative velocity of 235 km/s in redshifted H-alpha + [NII] and [SII] emission. Structure is resolved to 0"1 (0.8 kpc), well correlated with optical images from the Hubble Space Telescope and Very Large Array radio maps obtained at similar spatial resolution. Line diagnostics suggest that over the 10^7 yr to 10^8 yr duration of its AGN activity, gas has been ejected into bright turbulent lobes at rates comparable to star formation, although constituting perhaps only 1 percent of the baryonic mass in the galaxy.

  9. Trimming algorithm of frequency modulation for CIAE-230 MeV proton superconducting synchrocyclotron model cavity

    Science.gov (United States)

    Li, Pengzhan; Zhang, Tianjue; Ji, Bin; Hou, Shigang; Guo, Juanjuan; Yin, Meng; Xing, Jiansheng; Lv, Yinlong; Guan, Fengping; Lin, Jun

    2017-01-01

    A new project, the 230 MeV proton superconducting synchrocyclotron for cancer therapy, was proposed at CIAE in 2013. A model cavity is designed to verify the frequency modulation trimming algorithm featuring a half-wave structure and eight sets of rotating blades for 1 kHz frequency modulation. Based on the electromagnetic (EM) field distribution analysis of the model cavity, the variable capacitor works as a function of time and the frequency can be written in Maclaurin series. Curve fitting is applied for theoretical frequency and original simulation frequency. The second-order fitting excels at the approximation given its minimum variance. Constant equivalent inductance is considered as an important condition in the calculation. The equivalent parameters of theoretical frequency can be achieved through this conversion. Then the trimming formula for rotor blade outer radius is found by discretization in time domain. Simulation verification has been performed and the results show that the calculation radius with minus 0.012 m yields an acceptable result. The trimming amendment in the time range of 0.328-0.4 ms helps to reduce the frequency error to 0.69% in Simulation C with an increment of 0.075 mm/0.001 ms, which is half of the error in Simulation A (constant radius in 0.328-0.4 ms). The verification confirms the feasibility of the trimming algorithm for synchrocyclotron frequency modulation.

  10. 230Th/238U dating of hydrothermal sulfides from Duanqiao hydrothermal field, Southwest Indian Ridge

    Science.gov (United States)

    Yang, Weifang; Tao, Chunhui; Li, Huaiming; Liang, Jin; Liao, Shili; Long, Jiangping; Ma, Zhibang; Wang, Lisheng

    2016-11-01

    Duanqiao hydrothermal field is located between the Indomed and Gallieni fracture zones at the central volcano, at 50°28'E in the ultraslow-spreading Southwest Indian Ridge (SWIR). Twenty-eight subsamples from a relict chimney and massive sulfides were dated using the 230Th/238U method. Four main episodes of hydrothermal activity were determined according to the restricted results: 68.9-84.3, 43.9-48.4, 25.3-34.8, and 0.7-17.3 kyrs. Hydrothermal activity of Duanqiao probably started about 84.3 (±0.5) kyrs ago and ceased about 0.737 (±0.023) kyrs ago. The periodic character of hydrothermal activity may be related to the heat source provided by the interaction of local magmatism and tectonism. The estimated mean growth rate of the sulfide chimney is Dragon Flag field is much more recent than that of Duanqiao or Mt. Jourdanne fields. The massive sulfides are younger than the sulfides from other hydrothermal fields such as Rainbow, Sonne and Ashadze-2. The preliminarily estimated reserves of sulfide ores of Duanqiao are approximately 0.5-2.9 million tons.

  11. Life assessment of WWER-440/230 in the light of the design service life end

    Energy Technology Data Exchange (ETDEWEB)

    Karzov, G.P.; Timofeev, B.T. [CRISM ' Prometey' , St. Petersburg (Russian Federation)

    2001-07-01

    The thirty years design service life of some WWER-440 pressure vessels of the first modification V-230 without anticorrosive cladding being under operation in our country is approaching to its end in 2001-2005. And now a problem is arising of their further safe operation. This problem can be solved after conducting necessary calculations on the base of modern approaches and strength assessment considering the variation of properties for expired operation time. For reactor pressure vessel the calculated assessment is carried out, first of all, on brittle fracture resistance in emergency situation using reference curves, obtained on the base of accumulated experience. Therefore the first part of report gives results of this summarisation. Besides, by the calculated validity is taken into account the degradation of RPV material properties after a prolonged operation influence. These data are presented in the second part of report. The consideration of total combination of both kinds information in strength calculations will ensure safe operation of reactor pressure vessels. (orig.)

  12. High-temperature molecular magnets based on cyanovanadate building blocks: spontaneous magnetization at 230 k.

    Science.gov (United States)

    Entley, W R; Girolami, G S

    1995-04-21

    The molecular-based magnetic materials Cs(2)Mn(||)[V(||)(CN)(6)] (1) and (Et(4)N)(0.5)Mn(l.25)- [V(CN)(5)].2H(2)O (2) (where Et is ethyl) were prepared by the addition of manganese(II) triflate to aqueous solutions of the hexacyanovanadate(II) ion at 0 degrees C. Whereas 1 crystallizes in a face-centered cubic lattice, 2 crystallizes in a noncubic space group. The cesium salt (1) has features characteristic of a three-dimensional ferrimagnet with a Néel transition at 125 kelvin. The tetraethylammonium salt (2) also behaves as a three-dimensional ferrimagnet with a Néel temperature of 230 kelvin; only two other molecular magnets have higher magnetic ordering temperatures. Saturation magnetization measurements indicate that in both compounds the V(II) and high-spin Mn(II) centers are antiferromagnetically coupled. Both 1 and 2 exhibit hysteresis loops characteristic of soft magnets below their magnetic phase-transition temperatures. The high magnetic ordering temperatures of these cyano-bridged solids confirm that the incorporation of early transition elements into the lattice promotes stronger magnetic coupling by enhancing the backbonding into the cyanide pi* orbitals.

  13. Strengthening of 230KV wood transmission structures with glass fibre reinforced polymer (GFRP) wraps

    Energy Technology Data Exchange (ETDEWEB)

    Shahi, A.; West, J.S.; Pandey, M.D. [Waterloo Univ., ON (Canada). Dept. of Civil Engineering

    2007-07-01

    In northern Canada, an unexpected structural failure resulting from wood deterioration has been determined to pose a risk to the safety of the 230 kV wood transmission lines. Because of the remote location of the transmission structures and the need to keep the transmission lines in continuous service, replacement of deteriorated elements can be very expensive. One potential alternative is to install a lightweight strengthening system while the old structure is being serviced. One of the most common structural repair systems are fibre reinforced polymer (FRP) materials. Limited research has explored the feasibility of this strengthening system on wood beams. This paper presented a pilot experimental research program to study the feasibility of using Glass Fibre Reinforced Polymer (GFRP) fabrics as a lightweight, reliable, and effective strengthening system for deteriorated circular cross-arms of the Gulfport transmission structures. The paper discussed previous research on FRP materials, the research strategy of this study, the experimental program, and experimental results and analysis. This included measured moisture content, failure mode, relationship between stiffness and failure load, effect of wrapping on strength, and the effect of wrapping on stiffness. The results of the experimental program suggested a strong correlation between the failure load and the stiffness of the specimens and that the proposed strengthening system could result in more consistent strengths. 9 refs., 2 tabs., 8 figs.

  14. Ocorrência de micoses e pitiose em animais domésticos: 230 casos

    Directory of Open Access Journals (Sweden)

    Glauco J.N. Galiza

    2014-03-01

    Full Text Available Para determinar as principais micoses e oomicoses que acometeram animais domésticos na área de abrangência do Laboratório de Patologia Veterinária (LPV da Universidade Federal de Santa Maria (UFSM, foi realizado um estudo retrospectivo em 9.487 protocolos de necropsias e 20.199 exames histopatológicos (totalizando 29.686 casos, realizados no LPV-UFSM, entre janeiro de 1990 e dezembro de 2012. Do total de protocolos analisados, 230 apresentaram micoses ou pitiose (oomicose, sendo 179 casos (78% de micoses e 51 casos (22% de pitiose. Os protocolos foram revisados para determinar os principais achados referentes à epidemiologia, sinais clínicos e às alterações macroscópicas e microscópicas. Em dois casos (0,8% não foi possível determinar o gênero ou o grupo do fungo observado. As principais doenças diagnosticadas, em ordem decrescente de prevalência, foram: pitiose, candidíase, aspergilose, zigomicose, dermatofitose, malasseziose, criptococose, megabacteriose e esporotricose. Outras doenças diagnosticadas numa única ocorrência cada foram histoplasmose e pneumocistose. Os equinos foram os mais acometidos pela pitiose e os animais de companhia (cães e gatos foram os mais acometidos pelas micoses.

  15. Optimum design of a self-supported power transmission tower type 2M2 for 230 kW; Diseno optimo de una torre de transmision autosoportada tipo 2M2, para 230 kW

    Energy Technology Data Exchange (ETDEWEB)

    Espejel Valdez, Eduardo [Instituto de Investigaciones Electricas, Cuernavaca (Mexico); Millan Monje, Alejandro; Honk Hernandez, Wenceslao [Comision Federal de Electricidad, (CFE), Mexico, D. F. (Mexico)

    1985-12-31

    A group of specialists from the Comision Federal de Electricidad (CFE) and of the Instituto de Investigaciones Electricas (IIE) analyzes the design of various types of power transmission towers in their application stage, in order to enhance them. In this article the structural characteristics of the self-supported tower type 2M2 for 230 kV of two circuits and of suspension, are presented. [Espanol] Un grupo de especialistas de la Comision Federal de Electricidad (CFE) y del Instituto de Investigaciones Electricas (IIE) analiza el diseno de diversos tipos de torres de transmision en su etapa de aplicacion, con el fin de mejorarlos. En este articulo se presentan las caracteristicas estructurales de la torre autosoportada tipo 2M2 para 230 kV, de dos circuitos y de suspension.

  16. Investigating the use of 232Th/230Th as a dust proxy using co-located seawater and sediment samples from the low-latitude North Atlantic

    Science.gov (United States)

    Rowland, George H.; Ng, Hong Chin; Robinson, Laura F.; McManus, Jerry F.; Mohamed, Kais J.; McGee, David

    2017-10-01

    The thorium isotope ratio 232Th/230Th can be measured in seawater and sediment samples, and has been used as a proxy to reconstruct lithogenic fluxes to the oceans for the modern day and the Pleistocene. There has not yet been a systematic study testing the proxy using the 232Th/230Th ratio in seawater and the ratio recorded in the underlying sediment. In this study we use co-located core-top sediments and seawater samples from five seamount sites spanning the tropical North Atlantic to investigate the link between seawater and sediment 232Th/230Th ratios across a range of water depths. Our results indicate that a broad correlation exists between seawater and sedimentary 232Th/230Th ratios. Both seawater and sedimentary 232Th/230Th ratios record a signal consistent with decreasing lithogenic input east to west, from Africa to South America. However, calculated 232Th fluxes for the core-top sediment samples indicate a strong dependence on depth, with up to a factor of ∼4 difference from shallow (2900 m). This depth dependence is likely caused by either a deficit of 230Th burial at depth compared to the production in the overlying water column, through addition of 232Th, or by a combination of the two. By comparing seawater and sedimentary 232Th/230Th ratios we derive an apparent fractional solubility of 232Th of 29 ± 3%, in reasonable agreement with the upper end of existing estimates.

  17. 非固体电解质230℃高温全钽电容器制造技术的研究%Studies on Manufacturing Technology of Wet All Tantalum Capacitors with High Temperature Capability to 230

    Institute of Scientific and Technical Information of China (English)

    鄢波; 方鸣; 张选红; 王安玖; 王刚

    2013-01-01

    The factors affection the working stability and reliability of high temperature wet all tantalum capacitor were analyzed,through improving the anode,structure design and process.The manufacturing technology for wet all tantalum capacitors with high temperature capability to 230 ℃ was developed.The products of 50 V,160 μF were produced.The results show that it helps to enhance quality of capacitors' oxidation film and performance of working electrolyte in high temperature,improving anode,structure design,condition of formation and assembling process.This makes it able to meet various technical norms of capacitors to 230 ℃.%从阳极和结构设计、工艺改进,分析非固体电解质高温全钽电容器工作稳定性和可靠性的影响因素,提出了非固体电解质230℃高温全钽电容器制造技术.试制了50 V、160 μF规格产品,结果表明:通过改进阳极和结构设计、形成和装配工艺条件,可显著提高电容器氧化膜质量和工作电解液耐高温性能,确保电容器能满足230℃高温环境下的各项技术指标.

  18. Sequence of decommissioning of the main equipment in a central type VVER 440 V-230; Secuencia de desmantelamiento de los equipos principales de una central Tipo VVer 440 V-230

    Energy Technology Data Exchange (ETDEWEB)

    Andres, E.; Garcia Ruiz, R.

    2014-10-01

    IBERDROLA Ingenieria y Construccion S.A.U., leader of consortium with Empresarios Agrupados and INDRA, has developed the Basic Engineering for the decommissioning of contaminated systems and building of a VVER 440 V-230 Nuclear Power Plant, establishing the sequence and methodology for the main equipment fragmentation. For that, it has been designed dry and wet cutting zones to be set up in the area where steam generators, main cooling pumps and pressurizer are located; these components will be dismantled previously. (Author)

  19. Design of 230 MHz radio communication master station based on GNU Radio%基于GNU Radio的230 MHz多通道主站电台的设计

    Institute of Scientific and Technical Information of China (English)

    闫龙; 王智海; 祁兵

    2010-01-01

    采用GNU Radio技术及与其配套的硬件前端USRP设计和实现了230 MHz软件无线电多通道主站电台.该主站电台在调制方式上与现有无线电台设备全面兼容,覆盖了整个电力系统230 MHz全双工频段,可以同时在多个频点以不同的速率和调制方式与不同制式的从站电台进行双工通信.所提出的方案可以充分利用230 MHz无线频率资源,增加终端接入数量,提高通信系统组网的灵活性和可靠性,同时有效降低维护和升级的成本.

  20. Modification on Electrostatic Precipitator at Head of 230 m2 Sintering Machine of United Special Steel%联合特钢公司230 m2烧结机机头电除尘器改造

    Institute of Scientific and Technical Information of China (English)

    刘勃兴

    2015-01-01

    为满足日益严格的环保要求,针对天钢联合特钢有限公司230 m2烧结机头电除尘器运行不稳定的问题,从电场、卸灰阀、阴阳极振打系统、阴阳极大小框架校正、阴阳极系统校正及漏风检查等方面对230 m2烧结机机头电除尘器进行改造。改造后电除尘器运行正常,能够满足国家排放标准。%In order to meet more and more strict environmental requirement and to solve the problem of unstable running of electrical precipitator at head of sintering machine, the electrical precipitator at head of 230 m2 Sintering Machine of Tianjin Tiangang United Special Steel Co., Ltd. was modified from aspects of electric field, dust discharge valve, anode-cathode vibrating system, calibration of anode-cathode big and small frames, calibration of anode-cathode system and air leakage inspection. After modification, the electrical precipitator ran normally, meeting the emission requirement by national standard.

  1. Early Complete Molecular Response to First-Line Nilotinib in Two Patients with Chronic Myeloid Leukemia Carrying the p230 Transcript

    Directory of Open Access Journals (Sweden)

    Marianna Greco

    2013-01-01

    Full Text Available Chronic myeloid leukemia (CML with the rare fusion gene e19a2, encoding a p230 protein, has been described in patients with typical or rather aggressive clinical course. Although tyrosine kinase inhibitors (TKIs induce a substantial cytogenetic and molecular response in all phases of CML, a minority of p230 positive patients have been treated with TKIs. We report two cases of CML patients carrying the p230 transcript, who achieved fast and deep complete molecular response (CMR after frontline treatment with nilotinib. Our results suggest the use of nilotinib as frontline agent for the treatment of this CML variant.

  2. High temperature creep behavior of in-situ synthesized MoSi2-30%SiC composite

    Institute of Scientific and Technical Information of China (English)

    傅晓伟; 杨王玥; 孙祖庆; 张来启; 朱静

    2002-01-01

    The compressive creep behavior at 1200~1400℃ of an in-situ synt hesized MoSi2-30%SiC (volume fraction) composite and a traditional PM MoSi2 -30%SiC (volume fraction) composite is investigated. The creep rate of the in -situ synthesized MoSi2-30%SiC (volume fraction) composite is about 10- 7s-1 under stress of 60~120MPa, and significantly lower than that made by PM method above 1300℃. The reason is that the interface be tween SiC particle and MoSi2 matrix in in-situ synthesized SiCp/MoSi2 is of direct atomic bonding without any amorphous glassy phase, such as SiO2 stru cture. Creep deformation occurs primarily by dislocation motion and the dislocat ions have Burgers vectors of the ty pe of 〈110〉 and 〈100〉.

  3. Analyses of β-Bands of 230,232Th and 232,234U by the Projected Shell Model

    Institute of Scientific and Technical Information of China (English)

    CUI Ji-Wei; ZHOU Xian-Rong; CHEN Fang-Qi; SUN Yang; WU Cheng-Li

    2012-01-01

    The ground bands and β-bands of four nuclei 230,232Th and 232,234U in the actinide region are investigated by introducing a collective Do pair into the projected shell model.We discuss the collectivity of the Do pair.The calculated energy schemes agree well with experimental data,and so do the E2 transition rates.%The ground bands and β-bands of four nuclei 230,232 Th and 232,234 U in the actinide region are investigated by-introducing a collective Do pair into the projected shell model. We discuss the collectivity of the D0 pair. The calculated energy schemes agree well with experimental data, and so do the E2 transition rates.

  4. Excitation Potentials and Shell Corrections for the Elements Z2=20 to Z2=30

    DEFF Research Database (Denmark)

    Andersen, H.H.; Sørensen, H.; Vadja, P.

    1969-01-01

    Excitation potentials and shell corrections for the elements Z 2=20 to Z2=30 are evaluated from experimental stopping-power data for 5-12-MeV protons and deuterons. Use is made of Walske's K- and L-shell corrections and shell corrections calculated by Bonderup (1967) on the basis of the Thomas-Fe...... are found by means of Bonderup's shell corrections. Within the Z2 interval treated here, it is found that I/Z2 increases with increasing Z2, contrary to the general trend through the periodic system of elements......Excitation potentials and shell corrections for the elements Z 2=20 to Z2=30 are evaluated from experimental stopping-power data for 5-12-MeV protons and deuterons. Use is made of Walske's K- and L-shell corrections and shell corrections calculated by Bonderup (1967) on the basis of the Thomas...

  5. 238U-230Th dating of chevkinite in high-silica rhyolites from La Primavera and Yellowstone calderas

    Science.gov (United States)

    Vazquez, Jorge A.; Velasco, Noel O.; Schmitt, Axel K.; Bleick, Heather A.; Stelten, Mark E.

    2014-01-01

    Application of 238U-230Th disequilibrium dating of accessory minerals with contrasting stabilities and compositions can provide a unique perspective on magmatic evolution by placing the thermochemical evolution of magma within the framework of absolute time. Chevkinite, a Th-rich accessory mineral that occurs in peralkaline and metaluminous rhyolites, may be particularly useful as a chronometer of crystallization and differentiation because its composition may reflect the chemical changes of its host melt. Ion microprobe 128U-230Th dating of single chevkinite microphenocrysts from pre- and post-caldera La Primavera, Mexico, rhyolites yields model crystallization ages that are within 10's of k.y. of their corresponding K-Ar ages of ca. 125 ka to 85 ka, while chevkinite microphenocrysts from a post-caldera Yellowstone, USA, rhyolite yield a range of ages from ca. 110 ka to 250 ka, which is indistinguishable from the age distribution of coexisting zircon. Internal chevkinite-zircon isochrons from La Primavera yield Pleistocene ages with ~5% precision due to the nearly two order difference in Th/U between both minerals. Coupling chevkinite 238U-230Th ages and compositional analyses reveals a secular trend of Th/U and rare earth elements recorded in Yellowstone rhyolite, likely reflecting progressive compositional evolution of host magma. The relatively short timescale between chevkinite-zircon crystallization and eruption suggests that crystal-poor rhyolites at La Primavera were erupted shortly after differentiation and/or reheating. These results indicate that 238U-230Th dating of chevkinite via ion microprobe analysis may be used to date crystallization and chemical evolution of silicic magmas.

  6. The low-mass YSO CB230-A: investigating the protostar and its jet with NIR spectroscopy and Spitzer observations

    CERN Document Server

    Massi, Fabrizio; Brand, Jan; di Fabrizio, Luca; Wouterloot, Jan

    2008-01-01

    A jet from the low-mass YSO CB230-A had been discovered in NIR narrow-band images. We aim to investigate the physical properties of the region from where the jet is launched. Our analysis was carried out using low-resolution NIR spectra acquired with the camera NICS at the TNG telescope, with JH and HK grisms and a 1 arcsec-wide slit. These observational data were complemented with infrared photometric data from the Spitzer space telescope archive. The relevant physical properties of CB230-A were constrained by SED fitting of fluxes from the NIR to the mm. The YSO spectrum exhibits a significant number of atomic and molecular emission and absorption features. The characteristics of this spectrum suggest that we are observing a region in the close vicinity of CB230-A, i. e. its photosphere and/or an active accretion disk. The spectra of the knots in the jet contain a large number of emission lines, including a rich set of [FeII] lines. Emission due to H2 and [FeII] are not spatially correlated, confirming that...

  7. Methods for the determination of 234U/230 U, 230Th/232 Th and 228Ra/226Ra in uranium ores by TIMS%TIMS测定铀矿石样品中234U/238U、230Th/232Th、228Ra/226Ra的方法研究

    Institute of Scientific and Technical Information of China (English)

    朱明燕; 郭冬发; 崔建勇; 刘宇昂; 谭靖; 张彦辉

    2009-01-01

    研究了TIMS测定铀矿石样品中234 U/238 U、230 Th/232 Th、228 Ra/226 Ra的方法.建立了铀矿石密闭混酸一次溶样的方法和采用阴离子、阳离子和Sr特效树脂逐级离子交换分离纯化U、Th和Ra的流程,满足了TIMS测量要求.测定结果表明:100~1000 ng的天然铀中234U/238U,其测量精密度从静态多接收的2.34%提高到动态多接收的0.47%;对230Th与232Th丰度接近、质量为1 μg左右的钍,采用三带点样技术和法拉第多接收技术测定230Th/232Th,其内精度平均值为0.0048%,外精度为0.028%;采用单带加钽发射剂,ETP跳峰测定50~100 fg镭-228稀释剂中的228Ra/226Ra,其内精度小于0.10%,外精度小于0.20%.比较TIMS和HR-ICP-MS、α能谱法测定234U/238U、230Th/232Th、228Ra/226Ra结果,三者结果相吻合.TIMS测量法样品用量少、快速、准确、精密度高,是U,Th、Ra同位素比值测定方法的又一补充.

  8. 206Pb-230Th-234U-238U and 207Pb-235U geochronology of Quaternary opal, Yucca Mountain, Nevada

    Science.gov (United States)

    Neymark, Leonid A.; Amelin, Yuri V.; Paces, James B.

    2000-01-01

    U–Th–Pb isotopic systems have been studied in submillimeter-thick outermost layers of Quaternary opal occurring in calcite–silica fracture and cavity coatings within Tertiary tuffs at Yucca Mountain, Nevada, USA. These coatings preserve a record of paleohydrologic conditions at this site, which is being evaluated as a potential high-level nuclear waste repository. The opal precipitated from groundwater is variably enriched in 234U (measured 234U/238U activity ratio 1.124–6.179) and has high U (30–313 ppm), low Th (0.008–3.7 ppm), and low common Pb concentrations (measured 206Pb/204Pb up to 11,370). It has been demonstrated that the laboratory acid treatment used in this study to clean sample surfaces and to remove adherent calcite, did not disturb U–Th–Pb isotopic systems in opal. The opal ages calculated from 206Pb∗/238U and 207Pb∗/235U ratios display strong reverse discordance because of excess radiogenic 206Pb∗ derived from the elevated initial 234U. The data are best interpreted using projections of a new four-dimensional concordia diagram defined by 206Pb∗/238U, 207Pb∗/235U, 234U/238Uactivity, and 230Th/238Uactivity. Ages and initial 234U/238U activity ratios have been calculated using different projections of this diagram and tested for concordance. The data are discordant, that is observed 207Pb∗/235U ages of 170 ± 32 (2σ) to 1772 ± 40 ka are systematically older than 230Th/U ages of 34.1 ± 0.6 to 452 ± 32 ka. The age discordance is not a result of migration of uranium and its decay products under the open system conditions, but a consequence of noninstantaneous growth of opal. Combined U–Pb and 230Th/U ages support the model of slow mineral deposition at the rates of millimeters per million years resulting in layering on a scale too fine for mechanical sampling. In this case, U–Pb ages provide more accurate estimates of the average age for mixed multiage samples than 230Th/U ages, because ages based on shorter

  9. DC-Motor Drive Encompassing SiGe Asynchronous Control Electronics for Ultra-Wide (-230 0C to +130 0C) Environments Project

    Data.gov (United States)

    National Aeronautics and Space Administration — In Phase I, the research team formed by APEI, Inc. and University of Arkansas proved the feasibility of developing ultra-wide temperature (-230

  10. 17 CFR 230.150 - Definition of “commission or other remuneration” in section 3(a)(9), for certain transactions.

    Science.gov (United States)

    2010-04-01

    ... General § 230.150 Definition of “commission or other remuneration” in section 3(a)(9), for certain transactions. The term commission or other remuneration in section 3(a)(9) of the Act shall not...

  11. DC-Motor Drive Encompassing SiGe Asynchronous Control Electronics for Ultra-Wide (-230 0C to +130 0C) Environments Project

    Data.gov (United States)

    National Aeronautics and Space Administration — This Small Business Innovation Research Phase I project seeks to investigate and prove the feasibility of developing ultra-wide temperature (-230

  12. Production of actinium-225 for alpha particle mediated radioimmunotherapy.

    Science.gov (United States)

    Boll, Rose A; Malkemus, Dairin; Mirzadeh, Saed

    2005-05-01

    The initial clinical trials for treatment of acute myeloid leukemia have demonstrated the effectiveness of the alpha emitter (213)Bi in killing cancer cells. Bismuth-213 is obtained from a radionuclide generator system from decay of 10-days (225)Ac parent. Recent pre-clinical studies have also shown the potential application of both (213)Bi, and the (225)Ac parent radionuclide in a variety of cancer systems and targeted radiotherapy. This paper describes our five years of experience in production of (225)Ac in partial support of the on-going clinical trials. A four-step chemical process, consisting of both anion and cation exchange chromatography, is utilized for routine separation of carrier-free (225)Ac from a mixture of (228)Th, (229)Th and (232)Th. The separation of Ra and Ac from Th is achieved using the marcoporous anion exchange resin MP1 in 8M HNO(3) media. Two sequential MP1/NO(3) columns provide a separation factor of approximately 10(6) for Ra and Ac from Th. The separation of Ac from Ra is accomplished on a low cross-linking cation exchange resin AG50-X4 using 1.2M HNO(3) as eluant. Two sequential AG50/NO(3) columns provide a separation factor of approximately 10(2) for Ac from Ra. A 60-day processing schedule has been adopted in order to reduce the processing cost and to provide the highest levels of (225)Ac possible. Over an 8-week campaign, a total of approximately 100 mCi of (225)Ac (approximately 80% of the theoretical yield) is shipped in 5-6 batches, with the first batch typically consisting of approximately 50 mCi. After the initial separation and purification of Ac, the Ra pool is re-processed on a bi-weekly schedule or as needed to provide smaller batches of (225)Ac. The averaged radioisotopic purity of the (225)Ac was 99.6 +/- 0.7% with a (225)Ra content of < or =0.6%, and an average (229)Th content of (4(-4)(+5)) x 10(-5)%.

  13. Isolation of Actinium from Neutron-irradiated Thorium-I

    Institute of Scientific and Technical Information of China (English)

    1994-01-01

    Isolation of Actinium from Neutron-irradiated Thorium-I¥YangWeifan;YuanShuanggui;MuWantong;ZhangXueqian;LiZhongweiandZhaoLili...

  14. Sediment 231Pa/230Th as a recorder of the rate of the Atlantic meridional overturning circulation: insights from a 2-D model

    Directory of Open Access Journals (Sweden)

    S. E. Allen

    2010-03-01

    Full Text Available A two dimensional scavenging model is used to investigate the patterns of sediment 231Pa/230Th generated by the Atlantic Meridional Overturning Circulation (AMOC and further advance the application of this proxy for ocean paleocirculation studies. The scavenging parameters and the geometry of the overturning circulation cell have been chosen so that the model generates meridional sections of dissolved 230Th and 231Pa consistent with published water column profiles and an additional 12 previously unpublished profiles measured in the North and Equatorial Atlantic. The processes that generate the meridional sections of dissolved and particulate 230Th, dissolved and particulate 231Pa, dissolved and particulate 231Pa/230Th, and sediment 231Pa/230Th are discussed in detail. The results indicate that the relationship between sediment 231Pa/230Th at any given site and the overturning circulation is very complex. They clearly show that constraining past changes in the strength and geometry of the AMOC requires an extensive data set and they suggest strategies to maximize information from a limited number of samples.

  15. Sediment 231Pa/230Th as a recorder of the rate of the Atlantic meridional overturning circulation: insights from a 2-D model

    Directory of Open Access Journals (Sweden)

    S. E. Allen

    2009-11-01

    Full Text Available A two dimensional scavenging-circulation model is used to investigate the patterns of sediment 231Pa/230Th generated by the Atlantic Meridional Overturning Circulation (AMOC and further advance the application of this proxy for ocean paleocirculation studies. The scavenging parameters and the geometry of the overturning circulation cell have been chosen so that the model generates meridional sections of dissolved 230Th and 231Pa consistent with published water column profiles and an additional 12 previously unpublished profiles measured in the North and Equatorial Atlantic. The processes that generate the meridional sections of dissolved and particulate 230Th, dissolved and particulate 231Pa, dissolved and particulate 231Pa/230Th, and sediment 231Pa/230Th are discussed in detail. The results indicate that the relationship between sediment 231Pa/230Th at any given site and the overturning circulation is very complex. They clearly show that constraining past changes in the strength and geometry of the AMOC requires an extensive data set and they suggest strategies to maximize information from a limited number of samples.

  16. The ABCA1 Gene R230C Variant Is Associated with Decreased Risk of Premature Coronary Artery Disease: The Genetics of Atherosclerotic Disease (GEA) Study

    Science.gov (United States)

    Villarreal-Molina, Teresa; Posadas-Romero, Carlos; Romero-Hidalgo, Sandra; Antúnez-Argüelles, Erika; Bautista-Grande, Araceli; Vargas-Alarcón, Gilberto; Kimura-Hayama, Eric; Canizales-Quinteros, Samuel; Juárez-Rojas, Juan Gabriel; Posadas-Sánchez, Rosalinda; Cardoso-Saldaña, Guillermo; Medina-Urrutia, Aída; González-Salazar, María del Carmen; Martínez-Alvarado, Rocío; Jorge-Galarza, Esteban; Carnevale, Alessandra

    2012-01-01

    Background ABCA1 genetic variation is known to play a role in HDL-C levels and various studies have also implicated ABCA1 variation in cardiovascular risk. The functional ABCA1/R230C variant is frequent in the Mexican population and has been consistently associated with low HDL-C concentrations. Although it has been associated with other cardiovascular risk factors such as obesity and type 2 diabetes mellitus, it is not known whether it is associated with coronary artery disease (CAD). Aim The purpose of the study was to analyze whether the ABCA1/R230C variant is associated with premature CAD in a case-control association study (GEA or Genetics of Atherosclerotic Disease), and to explore whether BMI modulates the effect of the C230 allele on other metabolic traits using a population-based design. Results The C230 allele was significantly associated with both lower HDL-C levels and a lower risk of premature CAD as compared to controls (OR = 0.566; Padd = 1.499×10−5). In addition, BMI modulated the effect of R230C on body fat distribution, as the correlation between BMI and visceral to subcutaneous adipose tissue (a metric of the propensity to store fat viscerally as compared to subcutaneously) was negative in RR homozygous individuals, but positive in premenopausal women bearing the C230 allele, with a statistically significant interaction (P = 0.005). BMI-R230C interaction was also significant for triglyceride levels in women regardless of their menopausal status (P = 0.036). Conclusion This is the first study assessing the effect of the R230C/ABCA1 variant in remature CAD. C230 was associated with both decreased HDL-C levels and a lower risk of premature CAD, and gender-specific BMI-R230C interactions were observed for different metabolic traits. These interactions may help explain inconsistencies in associations, and underscore the need to further analyze interactions of this functional and frequent variant with diet, exercise and other

  17. The ABCA1 gene R230C variant is associated with decreased risk of premature coronary artery disease: the genetics of atherosclerotic disease (GEA study.

    Directory of Open Access Journals (Sweden)

    Teresa Villarreal-Molina

    Full Text Available BACKGROUND: ABCA1 genetic variation is known to play a role in HDL-C levels and various studies have also implicated ABCA1 variation in cardiovascular risk. The functional ABCA1/R230C variant is frequent in the Mexican population and has been consistently associated with low HDL-C concentrations. Although it has been associated with other cardiovascular risk factors such as obesity and type 2 diabetes mellitus, it is not known whether it is associated with coronary artery disease (CAD. AIM: The purpose of the study was to analyze whether the ABCA1/R230C variant is associated with premature CAD in a case-control association study (GEA or Genetics of Atherosclerotic Disease, and to explore whether BMI modulates the effect of the C230 allele on other metabolic traits using a population-based design. RESULTS: The C230 allele was significantly associated with both lower HDL-C levels and a lower risk of premature CAD as compared to controls (OR = 0.566; P(add = 1.499×10(-5. In addition, BMI modulated the effect of R230C on body fat distribution, as the correlation between BMI and visceral to subcutaneous adipose tissue (a metric of the propensity to store fat viscerally as compared to subcutaneously was negative in RR homozygous individuals, but positive in premenopausal women bearing the C230 allele, with a statistically significant interaction (P = 0.005. BMI-R230C interaction was also significant for triglyceride levels in women regardless of their menopausal status (P = 0.036. CONCLUSION: This is the first study assessing the effect of the R230C/ABCA1 variant in remature CAD. C230 was associated with both decreased HDL-C levels and a lower risk of premature CAD, and gender-specific BMI-R230C interactions were observed for different metabolic traits. These interactions may help explain inconsistencies in associations, and underscore the need to further analyze interactions of this functional and frequent variant with diet, exercise

  18. Laser ablation ICP-mass spectrometry determination of Th{sup 230} in soils at the Gunnison, Colorado UMTRA site

    Energy Technology Data Exchange (ETDEWEB)

    Anderson, M.S.; Braymen, S.; McIntosh, R. [Ames Lab., IA (United States)] [and others

    1994-02-16

    This report describes an innovative technology, laser ablation-inductively couple plasma-mass spectrometry (LA-ICP-MS), operated in a mobile laboratory, to rapidly detect thorium 230 activity levels in soil samples. This technology was demonstrated on-site during November 1993 at the Gunnison, Colorado, UMTRA project site in support of their remediation effort. The LA-ICP-MS sampling and analysis technique was chosen because of the capability for rapid analysis, approximately three samples per hour, with minimal sample preparation.

  19. Performance-based specifications and control of concrete durability state-of-the-art report RILEM TC 230-PSC

    CERN Document Server

    Luco, Luis

    2016-01-01

    This work gives an overview of significant research from recent years concerning performance-based design and quality control for concrete durability and its implementation. In engineering practice, performance approaches are often still used in combination with prescriptive requirements. This is largely because, for most durability test methods, sufficient practical experience still has to be gained before engineers and owners are prepared to fully rely on them.   This book, compiled by RILEM TC 230-PSC, is intended to assist efforts to successfully build the foundation for the full implementation of performance-based approaches through the exchange of relevant knowledge and experience between researchers and practitioners worldwide.  .

  20. Ultraviolet Spectroscopy of the SL9 Impact Sites. I. The 175-230 nm Region

    Science.gov (United States)

    Yelle, Roger V.; McGrath, Melissa A.

    1996-01-01

    We present a comprehensive analysis of spectra in the 175-230 nm wavelength region obtained by the Faint Object Spectrograph of the Hubble Space Telescope (HST) to determine the abundance of molecular species in the vicinity of the G and L impact sites. Data were obtained on July 18, roughly 3 hr after the G impact, on August 9, and on August 23. All spectra clearly show signatures of aerosols and gaseous CS2and NH3. The spectra obtained on July 18 also show the spectral signature of H2S. To determine the abundance of gases and aerosols we compare the observations with calculations based on the scattering properties of three-layer models for the atmosphere. We are able to fit the aerosol-dominated portions of the spectra with aerosol distributions similar to those derived from HST imaging observations by Westet al.(Science,267, 1296-1301, 1995). On all three dates we find that CS2resides at lower pressures than H2S, NH3, and the bulk of the aerosols. The CS2column abundance is approximately 10-7g-cm-2on July 18, a factor of 2-3 less on August 9, and another factor of 2 less on August 23. NH3is confined to pressures greater than 5 mbar with a mole fraction of 1 × 10-7on July 18 and August 9, decreasing to 3 × 10-8on August 23. H2S is also confined to pressures greater than 5 mbar with a mole fraction of 5 × 10-8on July 18. These mole fractions depend upon assumptions about the aerosol distribution and are derived from models with an aerosol column density of 2 × 109cm-2.Using different aerosol models, it is possible to obtain adequate fits to the spectra with mole fractions of H2S and NH3that are 2.5 and 7.5 times smaller. The spectra show no evidence for SO2absorption and we derive an upper limit of 10-7g-cm-2for the July 18 spectrum, assuming that SO2has the same altitude distribution as CS2. Using the same assumptions we derive upper limits of 10-6and 3 × 10-8for OCS and SO. There is no compelling evidence for either H2O or C2H2but both can be tolerated with

  1. K2-30 b and K2-34 b: Two inflated hot Jupiters around solar-type stars

    Science.gov (United States)

    Lillo-Box, J.; Demangeon, O.; Santerne, A.; Barros, S. C. C.; Barrado, D.; Hébrard, G.; Osborn, H. P.; Armstrong, D. J.; Almenara, J.-M.; Boisse, I.; Bouchy, F.; Brown, D. J. A.; Courcol, B.; Deleuil, M.; Delgado Mena, E.; Díaz, R. F.; Kirk, J.; Lam, K. W. F.; McCormac, J.; Pollacco, D.; Rajpurohit, A.; Rey, J.; Santos, N. C.; Sousa, S. G.; Tsantaki, M.; Wilson, P. A.

    2016-10-01

    We report the discovery of the two hot Jupiters K2-30 b and K2-34 b. The two planets were detected during campaigns 4 and 5 of the extension of the Kepler mission, K2; they transit their main-sequence stars with periods of ~4.099 and ~2.996 days. Subsequent ground-based radial velocity follow-up with SOPHIE, HARPS-N, and CAFE established the planetary nature of the transiting objects. We analyzed the transit signal, radial velocity, and spectral energy distributions of the two systems to characterize their properties. Both planets (K2-30 b and K2-34 b) are bloated hot Jupiters (1.20 RJup and 1.22 RJup) around relatively bright (V = 13.5 and V = 11.5) slow rotating main-sequence (G8 and F9) stars. Thus, these systems are good candidates for detecting the Rossiter-MacLaughlin effect in order to measure their obliquity and for atmospheric studies. Full Tables 1 and 2 are only available at the CDS via anonymous ftp to http://cdsarc.u-strasbg.fr (http://130.79.128.5) or via http://cdsarc.u-strasbg.fr/viz-bin/qcat?J/A+A/594/A50

  2. 230"经编机压电贾卡梳栉的数控铣削变形工艺研究%Research on the NC Milling Deformation Technics of Piezo Jacquard Guide Bar Used on 230" Warp Knitting Machine

    Institute of Scientific and Technical Information of China (English)

    刘炉; 刘相果; 李瑞峰; 徐莉萍; 陶骏

    2013-01-01

    Based on the main factors resulting in NC milling errors of piezo-jacquard guide bar used on 230 warp knitting machine,the NC milling techniques of long and thin workpieces affecting machining quality in the manufacture process,such as machining path,cutting strategy,fixing workpieces and cutting parameters were analyzed. The techniques and technological ways of controlling deformation and improving milling precision and surface quality were proposed. The results showed that the milling precision and the surface quality requirement was reached because of the milling technique of piezo-jacquard guide bar.%针对230"经编机压电贾卡梳栉数控铣削加工误差产生的主要原因,分析了该类超长细薄零件数控铣削加工过程中涉及到的工艺路线、走刀策略、工件装夹及切削参数等对加工质量的影响,提出了减小贾卡梳栉的数控铣削加工变形,提高其加工精度和表面质量的工艺措施.实验结果表明,采用该文提出的贾卡梳栉铣削工艺,零件的加工精度及表面粗糙度均达到了使用要求.

  3. ATR-FT-IR spectroscopy in the region of 500-230 cm -1 for identification of inorganic red pigments

    Science.gov (United States)

    Vahur, Signe; Knuutinen, Ulla; Leito, Ivo

    2009-08-01

    It is demonstrated that micro-ATR-FT-IR in the low wave number range (500-230 cm -1) can be well used for identification of pigments in paint samples thereby markedly extending the possibilities of pigment identification by ATR-IR spectroscopy into the realm of pigments having no absorptions in the mid-IR region. Reference spectra of pigments can be conveniently obtained by mixing them with linseed oil in approximately 1:1 mass ratio. Vermilion (or cinnabar), read lead, different red iron oxide pigments and cadmium red can be identified. In some cases the method can be used alone for pigment identification and in many cases it provides useful additional evidence for pigment identification using other instrumental techniques (electron microprobe analysis, XRF, optical microscopy).

  4. Thorium-230 ages of corals and duration of the last interglacial sea-level high stand on Aohu, Hawaii

    Science.gov (United States)

    Szabo, B. J.; Ludwig, K. R.; Muhs, D.R.; Simmons, K.R.

    1994-01-01

    Thorium-230 ages of emergent marine deposits on Oahu, Hawaii, have a uniform distribution of ages from ~114,000 to ~131,000 years, indicating a duration for the last interglacial sea-level high stand of ~17,000 years, in contrast to a duration of ~8000 years inferred from the orbitally tuned marine oxygen isotope record. Sea level on Oahu rose to ??? 1 to 2 meters higher than present by 131,000 years ago or ~6000 years earlier than inferred from the marine record. Although the latter record suggests a shift back to glacial conditions beginning at ~119,000 years ago, the Oahu coral ages indicate a near present sea level until ~114,000 years ago.

  5. Secondary Neutron-Production Cross Sections from Heavy-IonInteractions between 230 and 600 MeV/nucleon

    Energy Technology Data Exchange (ETDEWEB)

    Heilbronn, L.H.; Zeitlin, C.J.; Iwata, Y.; Murakami, T.; Iwase,H.; Nakamura, T.; Nunomiya, T.; Sato, H.; Yashima, H.; Ronningen, R.M.; Ieki, K.

    2006-10-04

    Secondary neutron-production cross-sections have beenmeasured from interactions of 230 MeV/nucleon He, 400 MeV/nucleon N, 400MeV/nucleon Kr, 400 MeV/nucleon Xe, 500 MeV/nucleon Fe, and 600MeV/nucleon Ne interacting in a variety of elemental and compositetargets. We report the double-differential production cross sections,angular distributions, energy spectra, and total cross sections from allsystems. Neutron energies were measured using the time-of-flighttechnique, and were measured at laboratory angles between 5 deg and 80deg. The spectra exhibit behavior previously reported in otherheavy-ion-induced neutron production experiments; namely, a peak atforward angles near the energy corresponding to the beam velocity, withthe remaining spectra generated by preequilibrium and equilibriumprocesses. The double-differential spectra are fitted with amoving-source parameterization. Observations on the dependence of thetotal cross sections on target and projectile mass arediscussed.

  6. Design, manufacture, test and delivery of a 230 kV extruded irradiated crosslinked polyethylene cable. Final report

    Energy Technology Data Exchange (ETDEWEB)

    None

    1978-01-01

    A project was initiated to develop a 230 kV solid dielectric cable for use in underground transmission. The dielectric is to be polyethylene, crosslinked by electron bombardment. Compared to the more conventional chemically crosslinked polyethylene, the irradiated cable is expected to contain less sensitive defects and thus be more suitable for a 230 kV rating. A toroidally shaped diode was developed to provide a uniform radiation dose to a thick-walled coaxial cable. The diode is to receive an output wave form obtained by ringing a Marx generator into a peaking capacitor. Initial evaluation of the toroidal diode was performed on thin plaques and tapes of insulating and semi-conducting polyethylene polymers. Additionally, some miscellaneous ethylene plastics were briefly investigated. Using a 4.8 MV Van de Graaff pulse generator in conjunction with several diode configurations, 15 to 35 kV extruded HMW-PE cables were irradiated. Dose rate, temperature, and pressure effects were evaluated. It was found that with limited dose rate it was possible to produce excellent crosslink density and uniformity at room temperature and atmospheric pressure. A subsequent 60 Hz voltage endurance test on an irradiated cable sample indicated it had long term, high stress capability. An engineering study conducted to determine an acceptable irradiator system design is reported. It was estimated that a 7 MV peak voltage at a rate of 2 to 3 pulse/sec can be provided by a Marx generator/peaking capacitor and should be capable of crosslinking a polyethylene wall thickness of approximately 2.5 cm. Based on the accumulated test results and on the performance of the 7 MV irradiator predicted, it appears feasible to continue the work effort into the next scheduled phase.

  7. 17 CFR 230.147 - “Part of an issue”, “person resident”, and “doing business within” for purposes of section 3(a)(11).

    Science.gov (United States)

    2010-04-01

    ... ACT OF 1933 General § 230.147 “Part of an issue”, “person resident”, and “doing business within” for... security is a person resident and doing business within * * * such State or Territory. The legislative.... These are: (i) That the issuer be a resident of and doing business within the state or territory...

  8. 234U and 230Th determination by FIA-ICP-MS and application to uranium-series disequilibrium in marine samples.

    Science.gov (United States)

    Godoy, Maria Luiza D P; Godoy, José Marcus; Kowsmann, Renato; Dos Santos, Guaciara M; Petinatti da Cruz, Rosana

    2006-01-01

    A 234U and 230Th determination method based on an extraction chromatographic separation on a flow injection system coupled to a quadruple ICP-MS was developed. Two-milliliter UTEVA (Eichrom Co.) cartridges were applied as separation tool and 236U and 229Th as spikes. Loading and washing steps were carried out in 3 M HNO3 solution and 0.05 M ammonium oxalate applied to elute both uranium and thorium. The method was applied initially to the IAEA-327 soil reference sample and NIST SRM 4357 ocean sediment reference material, with the obtained 234U and 230Th concentrations in agreement with the reference levels. Samples from a deep-sea sediment core (2450 m water depth) were analyzed and based on 230Th/234U dating, a mean sedimentation rate of 3.3 cm ky(-1) was calculated. Samples from two sediment layers were also dated by 14C-AMS and the observed ages agree with the 230Th/234U results.

  9. 17 CFR 230.143 - Definition of “has purchased”, “sells for”, “participates”, and “participation”, as used in...

    Science.gov (United States)

    2010-04-01

    ... 17 Commodity and Securities Exchanges 2 2010-04-01 2010-04-01 false Definition of âhas purchasedâ... § 230.143 Definition of “has purchased”, “sells for”, “participates”, and “participation”, as used in... States, notwithstanding the fact that the price to be paid to such foreign government upon...

  10. 40 CFR 270.230 - May I perform remediation waste management activities under a RAP at a location removed from the...

    Science.gov (United States)

    2010-07-01

    ... management activities under a RAP at a location removed from the area where the remediation wastes originated... Plans (RAPs) Obtaining A Rap for An Off-Site Location § 270.230 May I perform remediation waste management activities under a RAP at a location removed from the area where the remediation wastes originated...

  11. 77 FR 39170 - Safety Zone; Mississippi River, Mile Marker 230.0 to Mile Marker 237.0, in the Vicinity of Baton...

    Science.gov (United States)

    2012-07-02

    ...: If you have questions on this temporary rule, call or email Lieutenant (LT) Chris Norton, Marine Safety Unit Baton Rouge, at 225-298-5400 x230, Christopher.R.Norton@uscg.mil . If you have questions on... Norton, Marine Safety Unit Baton Rouge, at (225) 298-5400 or Christopher.R.Norton@uscg.mil ....

  12. ATR-FT-IR spectroscopy in the region of 550-230 cm -1 for identification of inorganic pigments

    Science.gov (United States)

    Vahur, Signe; Teearu, Anu; Leito, Ivo

    2010-03-01

    A comprehensive study of ATR-FT-IR spectra of 40 inorganic pigments of different colours widely used in historical paintings has been carried out in the low wave number spectral range (550-230 cm -1). The infrared spectra were recorded from mixtures of pigment and linseed oil. It is demonstrated that this spectral range - essentially devoid of absorption peaks of the common binder materials - can be well used for identification of inorganic pigments in paint samples thereby markedly extending the possibilities of pigment identification/confirmation by ATR-IR spectroscopy into the realm of pigments having no absorptions in the mid-IR region. In some cases the method can be used alone for pigment identification and in many cases it provides useful additional evidence for pigment identification using other instrumental techniques (electron microprobe analysis, XRF, optical microscopy). Together with earlier work this study provides a comprehensive overview of the pigment identification possibilities using ATR-FT-IR as well as a collection of reference spectra and is expected to be a useful reference for conservation practitioners.

  13. Evaluation of high specific-heat ceramic for regenerator use at temperatures between 2-30 K

    Science.gov (United States)

    Lawless, W. N.

    1979-01-01

    Specific heat, thermal conductivity (both in the range 2-30 K), and microhardness data were measured on the ceramics labelled LS-8, LS-8A, and LS-8A doped with CsI, SnCl2, and AgCl. A work hardened sample of LS-8A was also studied in an effort to determine the feasibility of using these types of LS-8 materials to replace Pb spheres in the regenerator of the JPL cryocooler. The LS-8A materials are all more than an order of magnitude harder than Pb, and the dopants do not significantly improve the hardness. However, the SnCl2 dopant has a remarkable effect in improving the specific heat and thermal conductivity of LS-8A. The SnCl2 doping level which maximized the regenerator enthalpy change in going from an unloaded to a loaded condition was found to be 0.2 percent SnCl2 in LS-8A. It was also found that the enthalpy change for a regenerator employing the LS-8A material is more than three times larger than for the Pb spheres case. The use of rods, rather than spheres, of optimally doped LS-8A in regenerators is discussed.

  14. Quantitative color measurement of pH indicator paper using trichromatic LEDs and TCS230 color sensor

    Science.gov (United States)

    Ghorude, T. N.; Chaudhari, A. L.; Shaligram, A. D.

    2008-11-01

    Quantitative analysis of pH indicator paper color is needed in the various fields. An indigenously developed Tristimulus colorimeter is used in this work for pH Indicator paper color measurement. The colorimeter uses Trichromatic RGB LEDs and a programmable color light to frequency converter (TCS230), combining configurable silicon photodiodes and a current to frequency converter on a single monolithic CMOS integrated circuit. The output is a square wave (50% duty cycle) with frequency directly proportional to light intensity. Digital input and digital output allow directly to a microcontroller. The light to frequency converter reads an 8*8 array of photodiodes. Sixteen photodiodes have red filters, 16 photodiodes have green filters, 16 photodiodes have blue filters, and 16 photodiodes are clear with no filters. All 16 photodiodes of the same colors are connected in parallel and type of photodiode the device uses during operation is pin selectable. Solutions having different standard pH were prepared and indicator paper was dipped in solution, it shows change in color. Using the developed RGB colorimeter chromaticity coordinates were measured and compared with the chromaticity coordinates measured using Ocean Optics HR-4000 high resolution spectrophotometer.

  15. Indirect Determination of the 230Th(n,f) and 231Th(n,f) Cross Sections for Thorium-Based Nuclear Energy Systems

    Energy Technology Data Exchange (ETDEWEB)

    Stroberg, S.R.; Allmond, J.M.; Angell, C.; Bernstein, L.A.; Bleuel, D.L.; Burke, J.T.; Gibelin, J.; Phair, L.; Scielzo, N.D.; Swanberg, E.; Wiedeking, M.; Norman, E.B.; Goldblum, Bethany

    2009-09-11

    The Surrogate Ratio Method (SRM) was employed in the first experimental determination of the 231Th(n,f) cross section, relative to the 235U(n,f) cross section, over an equivalent neutron energy range of 360 keV to 10 MeV. The 230Th(n,f) cross section was also deduced using the SRM, relative to the 234U(n,f) cross section, over an equivalent neutron energy range of 220 keV to 25 MeV. The desired compound nuclei were populated using (3He,3He) and (3He) reactions on targets of 232Th and 236U and relative fission decay probabilities were measured. The surrogate 230,231Th(n,f) cross sections were compared to cross section evaluations and directly-measured experimental data, where available.

  16. VizieR Online Data Catalog: K2-30 b and K2-34 b K2 light curves (Lillo-Box+, 2016)

    Science.gov (United States)

    Lillo-Box, J.; Demangeon, O.; Santerne, A.; Barros, S. C. C.; Barrado, D.; Hebrard, G.; Osborn, H. P.; Armstrong, D. J.; Almenara, J.-M.; Boisse, I.; Bouchy, F.; Brown, D. J. A.; Courcol, B.; Deleuil, M.; Delgado Mena, E.; Diaz, R. F.; Kirk, J.; Lam, K. W. F.; McCormac, J.; Pollacco, D.; Rajpurohit, A.; Rey, J.; Santos, N. C.; Sousa, S. G.; Tsantaki, M.; Wilson, P. A.

    2016-10-01

    The star K2-30 (EPIC210957318, 03:29:22.07 +22:17:57.9) was observed by K2 during its campaign 4, between February 7th and April 23rd, 2015. K2-34 (EPIC212110888, 08:30:18.91 +22:14:09.3) belongs to field-of-view 5, photometrically monitored by K2 between April 27th and July 10th, 2015. The data was reduced using both the Warwick (Armstrong et al. 2015A&A...579A..19A, Cat. J/A+A/579/A19) and the LAM- K2 (Barros et al., 2015MNRAS.454.4267B) pipelines. The detrended data (see Tables 1 and 2) show 1.9% and 0.8% dimmings every 4.099 and 2.996 days for K2-30 and K2-34, respectively (see Figs. 1 and 2). (2 data files).

  17. Esercizio dell’attività di impresa in forma societaria e disciplina di cui all’art. 230-bis c.c.: sull’asserita incompatibilità

    Directory of Open Access Journals (Sweden)

    Luigi Balestra

    2015-01-01

    Full Text Available Le Sezioni Unite (Cass., sez un., 6 novembre 2014, n. 23676 Rel. Bernabai già segnalata in questa Rivista hanno risolto il conflitto, profilatosi innanzi alla Sezione lavoro agli inizi del nuovo millennio, in ordine alla portata applicativa dell’art. 230-bis c.c., essendo state chiamate a stabilire se la fattispecie compendiata dalla norma in questione presupponga necessariamente un imprenditore persona fisica – elemento per vero non enunciato esplicitamente dalla disposizione, ma ricavabile dal comma 3 dell’art. 230-bis c.c. ove v’è il riferimento a un vincolo (di coniugio, parentela o affinità configurabile solo tra persone fisiche – o se, invece, sia prospettabile anche quando l’attività di impresa venga svolta in forma societaria.

  18. A New Approach to Suppress the Effect of Machining Error for Waveguide Septum Circular Polarizer at 230 GHz Band in Radio Astronomy

    Science.gov (United States)

    Hasegawa, Yutaka; Harada, Ryohei; Tokuda, Kazuki; Kimura, Kimihiro; Ogawa, Hideo; Onishi, Toshikazu; Nishimura, Atsushi; Han, Johnson; Inoue, Makoto

    2017-02-01

    A new stepped septum-type waveguide circular polarizer (SST-CP) was developed to operate in the 230 GHz band for radio astronomy, especially submillimeter-band VLBI observations. For previously reported SST-CP models, the 230 GHz band is too high to achieve the design characteristics in manufactured devices because of unexpected machining errors. To realize a functional SST-CP that can operate in the submillimeter band, a new method was developed, in which the division surface is shifted from the top step of the septum to the second step from the top, and we simulated the expected machining error. The SST-CP using this method can compensate for specified machining errors and suppress serious deterioration. To verify the proposed method, several test pieces were manufactured, and their characteristics were measured using a VNA. These results indicated that the insertion losses were approximately 0.75 dB, and the input return losses and the crosstalk of the left- and right-hand circular polarization were greater than 20 dB at 220-245 GHz on 300 K. Moreover, a 230 GHz SST-CP was developed by the proposed method and installed in a 1.85-m radio telescope receiver systems, and then had used for scientific observations during one observation season without any problems. These achievements demonstrate the successful development of a 230 GHz SST-CP for radio astronomical observations. Furthermore, the proposed method can be applicable for observations in higher frequency bands, such as 345 GHz.

  19. 230Th and 231Pa on GEOTRACES GA03, the U.S. GEOTRACES North Atlantic transect, and implications for modern and paleoceanographic chemical fluxes

    Science.gov (United States)

    Hayes, Christopher T.; Anderson, Robert F.; Fleisher, Martin Q.; Huang, Kuo-Fang; Robinson, Laura F.; Lu, Yanbin; Cheng, Hai; Edwards, R. Lawrence; Moran, S. Bradley

    2015-06-01

    The long-lived uranium decay products 230Th and 231Pa are widely used as quantitative tracers of adsorption to sinking particles (scavenging) in the ocean by exploiting the principles of radioactive disequilibria. Because of their preservation in the Pleistocene sediment record and through largely untested assumptions about their chemical behavior in the water column, the two radionuclides have also been used as proxies for a variety of chemical fluxes in the past ocean. This includes the vertical flux of particulate matter to the seafloor, the lateral flux of insoluble elements to continental margins (boundary scavenging), and the southward flux of water out of the deep North Atlantic. In a section of unprecedented vertical and zonal resolution, the distributions of 230Th and 231Pa across the North Atlantic shed light on the marine cycling of these radionuclides and further inform their use as tracers of chemical flux. Enhanced scavenging intensities are observed in benthic layers of resuspended sediments on the eastern and western margins and in a hydrothermal plume emanating from the Mid-Atlantic Ridge. Boundary scavenging is clearly expressed in the water column along a transect between Mauritania and Cape Verde which is used to quantify a bias in sediment fluxes calculated using 230Th-normalization and to demonstrate enhanced 231Pa removal from the deep North Atlantic by this mechanism. The influence of deep ocean ventilation that leads to the southward export of 231Pa is apparent. The 231Pa/230Th ratio, however, predominantly reflects spatial variability in scavenging intensity, complicating its applicability as a proxy for the Atlantic meridional overturning circulation.

  20. Time-Dependent Fatigue Crack Propagation Behavior of Two Solid-Solution-Strengthened Ni-Based Superalloys—INCONEL 617 and HAYNES 230

    Science.gov (United States)

    Ma, Longzhou; Roy, Shawoon K.; Hasan, Muhammad H.; Pal, Joydeep; Chatterjee, Sudin

    2012-02-01

    The fatigue crack propagation (FCP) as well as the sustained loading crack growth (SLCG) behavior of two solid-solution-strengthened Ni-based superalloys, INCONEL 617 (Special Metals Corporation Family of Companies) and HAYNES 230 (Haynes International, Inc., Kokomo, IN), were studied at increased temperatures in laboratory air under a constant stress-intensity-factor ( K) condition. The crack propagation tests were conducted using a baseline cyclic triangular waveform with a frequency of 1/3 Hz. Various hold times were imposed at the maximum load of a fatigue cycle to study the hold time effect. The results show that a linear elastic fracture mechanics (LEFM) parameter, stress intensity factor ( K), is sufficient to describe the FCP and SLCG behavior at the testing temperatures ranging from 873 K to 1073 K (600 °C to 800 °C). As observed in the precipitation-strengthened superalloys, both INCONEL 617 and HAYNES 230 exhibited the time-dependent FCP, steady SLCG behavior, and existence of a damage zone ahead of crack tip. A thermodynamic equation was adapted to correlate the SLCG rates to determine thermal activation energy. The fracture modes associated with crack propagation behavior were discussed, and the mechanism of time-dependent FCP as well as SLCG was identified. Compared with INCONEL 617, the lower crack propagation rates of HAYNES 230 under the time-dependent condition were ascribed to the different fracture mode and the presence of numerous W-rich M6C-type and Cr-rich M23C6-type carbides. Toward the end, a phenomenological model was employed to correlate the FCP rates at cycle/time-dependent FCP domain. All the results suggest that an environmental factor, the stress assisted grain boundary oxygen embrittlement (SAGBOE) mechanism, is mainly responsible for the accelerated time-dependent FCP rates of INCONEL 617 and HAYNES 230.

  1. U-238-U-234-Th-230-Th-232 systematics and the precise measurement of time over the past 500,000 years

    Science.gov (United States)

    Edwards, R. Lawrence; Chen, J. H.; Wasserburg, G. J.

    1987-01-01

    A method is presented for the high-precision measurement of the Th-230 abundance in corals by isotope-dilution mass spectrometry using techniques developed by Chen and Wasserburg (1980, 1981) and Chen et al. (1986). It is shown that 6 x 10 to the 8th atoms of Th-230 can be measured to + or - 30 percent (2 sigma) and 2 x 10 to the 10th atoms of Th-230 to + or - 2 percent. The time over which useful age data on corals can be obtained ranges from a few years to about 500 ky, with the uncertainty in age ranging from 5 y for a 180-y-old coral, to 44 y for a 8294-y-old coral, to 1.1 ky for a 123.1-ky-old coral. Ages were determined with high analytical precision for several corals that grew during high sea-level stands about 120 ky ago, supporting the view that the dominant cause of Pleistocene climate change was Milankovitch forcing.

  2. {sup 230}Th, {sup 232}Th and {sup 238}U determinations in phosphoric acid fertilizer and process products by ICP-MS

    Energy Technology Data Exchange (ETDEWEB)

    Nascimento, Marcos R.L. do; Guerreiro, Luisa M.R.; Bonifacio, Rodrigo L.; Taddei, Maria H.T., E-mail: pmarcos@cnen.gov.br [Comissao Nacional de Energia Nuclear (LAPOC/CNEN-MG), Pocos de Caldas, MG (Brazil). Laboratorio de Pocos de Caldas

    2015-07-01

    Through processing of Santa Quiteria-CE mine phosphate rock, Brazil has established a project for production of phosphoric acid fertilizer and uranium as a by-product. Under leaching conditions of phosphate rock with sulfuric acid, which is the common route for preparing phosphoric acid fertilizer, a large part of uranium, thorium and their decay products naturally present in the rock are solubilized. In order to assess the contamination potential in phosphoric acid and others process products, this paper describes a previous precipitation and direct methods for routine analysis of thorium and uranium isotopes by ICP-MS. In all samples, {sup 230}Th, {sup 232}Th and {sup 238}U were directly determined after dilution, except {sup 230}Th in phosphoric acid loaded with uranium sample, which to overcome equipment contamination effect, was determined after its separation by oxalate precipitation using lanthanum as a carrier. The results obtained by the proposed method by ICP-MS, were in good agreement when compared to alpha spectrometry for {sup 230}Th, and ICP-OES and spectrophotometry with arsenazo III for elementary uranium and thorium determinations. (author)

  3. 230 GHz VLBI observations of M87: event-horizon-scale structure at the enhanced very-high-energy $\\rm \\gamma$-ray state in 2012

    CERN Document Server

    Akiyama, Kazunori; Fish, Vincent L; Doeleman, Sheperd S; Broderick, Avery E; Dexter, Jason; Hada, Kazuhiro; Kino, Motoki; Nagai, Hiroshi; Honma, Mareki; Johnson, Michael D; Algaba, Juan C; Asada, Keiichi; Brinkerink, Christiaan; Blundell, Ray; Bower, Geoffrey C; Cappallo, Roger; Crew, Geoffrey B; Dexter, Matt; Dzib, Sergio A; Freund, Robert; Friberg, Per; Gurwell, Mark; Ho, Paul T P; Inoue, Makoto; Krichbaum, Thomas P; Loinard, Laurent; MacMahon, David; Marrone, Daniel P; Moran, James M; Nakamura, Masanori; Nagar, Neil M; Ortiz-Leon, Gisela; Plambeck, Richard; Pradel, Nicolas; Primiani, Rurik A; Rogers, Alan E E; Roy, Alan L; SooHoo, Jason; Tavares, Jonathan-Leon; Tilanus, Remo P J; Titus, Michael; Wagner, Jan; Weintroub, Jonathan; Yamaguchi, Paul; Young, Ken H; Zensus, Anton; Ziurys, Lucy M

    2015-01-01

    We report on 230 GHz (1.3 mm) VLBI observations of M87 with the Event Horizon Telescope using antennas on Mauna Kea in Hawaii, Mt. Graham in Arizona and Cedar Flat in California. For the first time, we have acquired 230 GHz VLBI interferometric phase information on M87 through measurement of closure phase on the triangle of long baselines. Most of the measured closure phases are consistent with 0$^{\\circ}$ as expected by physically-motivated models for 230 GHz structure such as jet models and accretion disk models. The brightness temperature of the event-horizon-scale structure is $\\sim 1 \\times 10^{10}$ K derived from the compact flux density of $\\sim 1$ Jy and the angular size of $\\sim 40 $ $\\rm \\mu$as $\\sim$ 5.5 $R_{{\\rm s}}$, which is broadly consistent with the peak brightness of the radio cores at 1-86 GHz located within $\\sim 10^2$ $R_{{\\rm s}}$. Our observations occurred in the middle of an enhancement in very-high-energy (VHE) $\\rm \\gamma$-ray flux, presumably originating in the vicinity of the centr...

  4. Early diagenesis of travertine deposits from the Tibetan Plateau - implications for 230Th/234U dating and palaeoenvironmental reconstruction

    Science.gov (United States)

    Wang, Zhijun; Meyer, Michael; Hoffmann, Dirk; Spötl, Christoph; Aldenderfer, Mark; Sanders, Diethard

    2014-05-01

    Travertine is calcium carbonate precipitated from hydrothermal springs. These terrestrial carbonate deposits can be used as high-resolution archives for reconstructing palaeoclimatic and palaeoenvironmental change and are also suitable for uranium-series disequilibrium (230Th/234U) dating. In many instances such spring deposits are associated with archaeological remains (e.g. stone artifacts and other traces of prehistoric human activity) and are therefore of interest for palaeoclimatologists and archaeologists alike. However, travertines are often affected by early diagenesis that can impact on the closed-system U-series behavior and on their geochemical signature. Hence, careful evaluation of the travertine microfabrics is required before these types of hot spring deposits can be accurately dated and used for paleoenviromental reconstruction. The Tibetan plateau hosts numerous hydrothermal spring deposits that occur along neotectonic faults. In this study, samples were collected from two archaeological travertine sites, i.e. Chusang and Tirthapuri, located in southern and western Tibet, respectively. Microscopic analysis of thin sections reveals a wide variety of crystal fabrics, including micrite, microspar and sparite, the latter can be composed of columnar or mosaic crystals, respectively. Areas where dendritic crystals are preserved are identified in our micrographs as well. Many of the Chusang and Tirthapuri travertine samples are porous. Drusy sparite is rimming most of the pore walls and a complex succession of secondary calcite phases precipitated in these pore spaces as well. The different generations of pore cement comprise micrite and sparite that can be laminated or fibrous in character and show sometimes evidence of an aragonite precursor. Detrital material like quartz, feldspar and other grains as well as humic and fulvic acids have been washed into the travertine pores too. Based on our microscopic analysis a complex growth history can be

  5. Discriminating assimilants and decoupling deep- vs. shallow-level crystal records at Mount Adams using 238U-230Th disequilibria and Os isotopes

    Science.gov (United States)

    Jicha, B.R.; Johnson, C.M.; Hildreth, W.; Beard, B.L.; Hart, G.L.; Shirey, S.B.; Singer, B.S.

    2009-01-01

    A suite of 23 basaltic to dacitic lavas erupted over the last 350??kyr from the Mount Adams volcanic field has been analyzed for U-Th isotope compositions to evaluate the roles of mantle versus crustal components during magma genesis. All of the lavas have (230Th/238U) > 1 and span a large range in (230Th/232Th) ratios, and most basalts have higher (230Th/232Th) ratios than andesites and dacites. Several of the lavas contain antecrysts (crystals of pre-existing material), yet internal U-Th mineral isochrons from six of seven lavas are indistinguishable from their eruption ages. This indicates a relatively brief period of time between crystal growth and eruption for most of the phenocrysts (olivine, clinopyroxene, plagioclase, magnetite) prior to eruption. One isochron gave a crystallization age that is ~ 20-25??ka older than its corresponding eruptive age, and is interpreted to reflect mixing of older and juvenile crystals or a protracted period of magma storage in the crust. Much of the eruptive volume since 350??ka consists of lavas that have small to moderate 230Th excesses (2-16%), which are likely inherited from melting of a garnet-bearing intraplate ("OIB-like") mantle source. Following melt generation and subsequent migration through the upper mantle, most Mt. Adams magmas interacted with young, mafic lower crust, as indicated by 187Os/188Os ratios that are substantially more radiogenic than the mantle or those expected via mixing of subducted material and the mantle wedge. Moreover, Os-Th isotope variations suggest that unusually large 230Th excesses (25-48%) and high 187Os/188Os ratios in some peripheral lavas reflect assimilation of small degree partial melts of pre-Quaternary basement that had residual garnet or Al-rich clinopyroxene. Despite the isotopic evidence for lower crustal assimilation, these processes are not generally recorded in the erupted phenocrysts, indicating that the crystal record of the deep-level 'cryptic' processes has been

  6. 大疱性类天疱疮患者血清中抗BP180 IgE、抗BP230 IgE和总IgE间的相关性%Correlation among total IgE and IgE anti-BP180 or anti-BP230 autoantibodies in patients with bullous pemphigoidi

    Institute of Scientific and Technical Information of China (English)

    王昱璐; 李丽; 左亚刚

    2016-01-01

    目的 检测大疱性类天疱疮(BP)患者外周血嗜酸粒细胞、血清总IgE、抗BP180和抗BP230的IgE抗体,并分析它们之间的相关性.方法 用ELISA方法检测63例BP患者血清的总IgE抗体、抗BP180 IgE抗体和抗BP230 IgE抗体水平,并分析患者外周血嗜酸粒细胞水平、BPDAI评分与IgE抗体的相关性.结果 63例BP患者中,总IgE阳性者41例,阳性率65.08%;抗BP180 IgE阳性者37例,阳性率58.73%;抗BP230 IgE抗体阳性者47例,阳性率74.60%.总IgE和抗BP230 IgE呈正相关(r=0.643,P<0.001).63例患者中共34例记录了外周血嗜酸粒细胞水平,其中19例BP患者外周血嗜酸粒细胞数量增多(55.88%).BP180 IgE抗体与BPDAI中的红斑评分呈正相关(r =0.934,P<0.05).结论 IgE在BP致病过程中发挥作用,IgE自身抗体可能主要与BP230相结合,同时抗BP180 IgE可能会引发BP患者红斑.

  7. ORIGINAL ARTICLE 230

    African Journals Online (AJOL)

    boaz

    aDepartment of Medical Laboratory Science, College of Health Science, Igbinedion University Okada, ... Further analysis of the malaria parasite density on pregnancy according to their ..... compared to the report ofDicko (31), who observed.

  8. Equilibrium and Disequilibrium of 230Th-238U in Zircon from the Minoan Eruption, Santorini, Aegean Sea, Greece

    Science.gov (United States)

    Schmitt, A. K.; Stockli, D. F.; Song, E. J.; Storm, S.

    2016-12-01

    The Minoan eruption (ca. 1600 BCE; 40-80 km3 dense rock equivalent) occurred after a ca. 18 ka period of dormancy followed by rapid reinvigoration through arrival of new magma from deep reservoirs colliding with evolved magmas in shallow storage. Although zoned phenocrysts indicate brief timescales ranging between years to decades for final pre-eruptive magma recharge and mixing, it remains unclear how magma accumulation vs. crystallization were balanced in the subvolcanic reservoir during the preceding inter-eruptive cycle. To directly probe magma presence over the repose interval prior to the Minoan eruption and further back in time, we reconnoitered the potential of U-Th zircon geochronology to date the crystallization of individual zircon crystals from pumice from the Minoan eruption. Zircon crystals were extracted from composite pumice samples (several kg each) from basal fall out deposits using gravity and magnetic separation. Etching in cold HF removed adherent glass and revealed the shape of crystals, which were pressed into indium metal to expose unpolished rims to the ion beam of a CAMECA IMS 1270 secondary ionization mass spectrometer. Adherent glass was ubiquitous, indicating that crystals were in contact with melt at the time of eruption. Six of 18 crystals were in 230Th/238U secular equilibrium, two crystals yielded ages of ca. 160 ka, and the remaining rims dated between eruption age and ca. 20 ka. Low Th/U of some secular equilibrium zircon suggests recycling of metamorphic basement zircon, which is also indicated by the presence of rutile in heavy mineral separates. U-Th dates also reveal recycling of zircon from Pleistocene intrusions that likely represent left-over magma from antecedent eruption cycles. We tentatively interpret the dominant zircon population with near-eruption to ca. 20 ka ages to indicate continuous melt presence underneath Santorini during the last repose interval. Distinguishing a hiatus in zircon crystallization between 20 ka

  9. Influence of soil texture on the distribution and availability of {sup 238}U, {sup 230}Th, and {sup 226}Ra in soils

    Energy Technology Data Exchange (ETDEWEB)

    Blanco Rodriguez, P. [Departamento de Fisica, Facultad de Ciencias, Universidad de Extremadura, Avd. Elvas s/n, 06071 Badajoz (Spain); Vera Tome, F. [Departamento de Fisica Aplicada, Facultad de Ciencias, Universidad de Extremadura, Avd. Elvas s/n, 06071 Badajoz (Spain)], E-mail: fvt@unex.es; Lozano, J.C. [Laboratorio de Radiactividad Ambiental, Facultad de Ciencias, Universidad de Salamanca, 37008 Salamanca (Spain); Perez-Fernandez, M.A. [Area de Ecologia, Universidad Pablo Olavide, Carretera de Utrera km. 1, 41013 Sevilla (Spain)

    2008-08-15

    The influence of soil texture on the distribution and availability of {sup 238}U, {sup 230}Th, and {sup 226}Ra in soils was studied in soil samples collected at a rehabilitated uranium mine located in the Extremadura region in south-west Spain. The activity concentration (Bq kg{sup -1}) in the soils ranged from 60 to 750 for {sup 238}U, from 60 to 260 for {sup 230}Th, and from 70 to 330 for {sup 226}Ra. The radionuclide distribution was determined in three soil fractions: coarse sand (0.5-2 mm), medium-fine sand (0.067-0.5 mm), and silt and clay (<0.067 mm). The relative mobility of the natural radionuclides in the different fractions was studied by comparison of the activity ratios between radionuclides belonging to the same radioactive series. The lability of these radionuclides in each fraction was also studied through selective extraction from the soils using a one-step sequential extraction scheme. Significant correlations were found for {sup 238}U, {sup 230}Th, and {sup 226}Ra between the activity concentration per fraction and the total activity concentration in the bulk soil. Thus, from the determination of the activity concentration in the bulk soil, one could estimate the activity concentration in each fraction. Correlations were also found for {sup 238}U and {sup 226}Ra between the labile activity concentration in each fraction and the total activity concentration in bulk soil. Assuming that there is some particle-size fraction that predominates in the process of soil-to-plant transfer, the parameters obtained in this study should be used as correction factors for the transfer factors determined from the bulk soil in previous studies.

  10. Alpha-decay branching ratios to high-lying excited-states of the 242Cm→238pu→ 234U →230Th→226Rn decay chain

    Institute of Scientific and Technical Information of China (English)

    ZHANG Jin-Juan; XU Chang; REN Zhong-Zhou

    2009-01-01

    We present a systematic calculation on the 0c-decay branching ratios to excited-states of an even-even α-decay chain 242Cm→238pu→234U →230Th→226Rn by the improved barrier penetration approach. The changes of the parities between the parent nuclei and the daughter nuclei are properly taken into account. The theoretical values are compared with the available experimental data and the deviation between them is within a factor of 5 in most cases.

  11. The dynamics of naturally acquired immune responses to Plasmodium falciparum sexual stage antigens Pfs230 & Pfs48/45 in a low endemic area in Tanzania.

    Directory of Open Access Journals (Sweden)

    Teun Bousema

    Full Text Available BACKGROUND: Naturally acquired immune responses against sexual stages of P. falciparum can reduce the transmission of malaria from humans to mosquitoes. These antigens are candidate transmission-blocking vaccines but little is known about the acquisition of sexual stage immunity after exposure to gametocytes, or their longevity and functionality. We conducted a longitudinal study on functional sexual stage immune responses. METHODOLOGY/PRINCIPAL FINDINGS: Parasitaemic individuals (n = 116 were recruited at a health centre in Lower Moshi, Tanzania. Patients presented with gametocytes (n = 16, developed circulating gametocytes by day 7 (n = 69 or between day 7 and 14 (n = 10 after treatment or did not develop gametocytes (n = 21. Serum samples were collected on the first day of gametocytaemia and 28 and 84 days post-enrolment (or d7, 28, 84 after enrolment from gametocyte-negative individuals. Antibody responses to sexual stage antigens Pfs230 and Pfs48/45 were detected in 20.7% (72/348 and 15.2% (53/348 of the samples, respectively, and were less prevalent than antibodies against asexual stage antigens MSP-1(19 (48.1%; 137/285 and AMA-1 (52.4%; 129/246(p<0.001. The prevalence of anti-Pfs230 (p = 0.026 and anti-Pfs48/45 antibodies (p = 0.017 increased with longer duration of gametocyte exposure and had an estimated half-life of approximately 3 months. Membrane feeding experiments demonstrated a strong association between the prevalence and concentration of Pfs230 and Pfs48/45 antibodies and transmission reducing activity (TRA, p<0.01. CONCLUSIONS/SIGNIFICANCE: In a longitudinal study, anti-Pfs230 and Pfs48/45 antibodies developed rapidly after exposure to gametocytes and were strongly associated with transmission-reducing activity. Our data indicate that the extent of antigen exposure is important in eliciting functional transmission-reducing immune responses.

  12. The metrological activity determination of {sup 238} U and {sup 230} Th by gamma spectrometry to industrial fuel-cycle application

    Energy Technology Data Exchange (ETDEWEB)

    Almeida M, M.C. de; Delgado, J.U.; Poledna, R. [Instituto de Radioprotecao e Dosimetria- IRD/SEMRA, CNEN, Av. Salvador Allende s/n, Recreio, CEP 22780-160, Rio de Janeiro (Brazil)]. e-mail: marcandida@yahoo.com.br

    2006-07-01

    This work describes the difficulty for determining the activity of {sup 238} U and {sup 230} Th using gamma spectrometry due to the low gamma-ray emission probabilities of 92 and 67 keV, and, mainly, the associated high uncertainties about 13 and 11%, respectively. {sup 230} Th is a {sup 238} U daughter and it is product from uranium mills and refineries. {sup 230} Th decays to {sup 226} Ra and this decay has to be measured because these radionuclides are not in secular equilibrium with their daughter products, besides the gamma-energies have high uncertainties in the emission probabilities. These radionuclides, mostly {sup 238} U, are important in the nuclear fuel-cycle, since the mining of uranium ore, where the nominal isotopic content of natural uranium is 99.27% of {sup 238} U, until the irradiated fuel reprocessing, where this isotope, a fertile material, is recovered to be used again. The uranium and thorium are considered safeguarded nuclear materials and the metrology tries to calibrate and standardize these materials to improve the activity determination techniques applied in different fuel-cycle scopes. The essential characteristics of the safeguarded materials are low gamma energies (less than 100 keV) and emission probabilities but with high uncertainties. In this way, the metrology can contribute to homeland security defense against illicit nuclear trafficking with the identification and quantification of the safeguarded radionuclides such as uranium and thorium, using specific gamma window energy and high resolution planar or coaxial germanium detector. The efficiency curve is obtained from the reference source spectrum considering the photopeak areas corresponding the standard activities. This curve depends on radiation energy, sample geometry, photon attenuation (sample absorption and material absorption between sample-detector), dead time and sample-detector position. The metrological activity determinations of {sup 238} U solid sources, and of

  13. Development of energy efficient small power motors with integrated electronic unit for 230V mains connection; Entwicklung von energieeffizienten Kleinmotoren mit integrierter Betriebselektronik fuer direkte Netzeinspeisung

    Energy Technology Data Exchange (ETDEWEB)

    Lelkes, Andras [GEFEG-NECKAR Antriebssysteme GmbH, Gosheim (Germany)

    2011-07-01

    This paper describes the development and the optimization of a drives family with integrated electronic control unit. This integration makes elegant and compact drive solutions for numerous industrial applications possible. The wiring effort and the space required in the electronic cabinet are reduced considerably. All these drives are based virtually on the same control hardware and firmware. Therefore, all family members can be controlled by customers on the same way. Especially interesting are the new members of the drives family for direct 230V 50Hz mains connection. (orig.)

  14. Partitioning of 232Th, 230Th and 228Th in the Surface Water of Northwest Peninsular Malaysia Coastal Waters as Tracer for SPM Sources

    Directory of Open Access Journals (Sweden)

    Nor Faizah MMK Noorulhudha

    2017-07-01

    Full Text Available Natural thorium radioisotopes (232Th, 230Th, 228Th, 234Th are well known to be particle reactive, thus they are often used to study the geochemical process of particle reactive matter. In this study, water samples were collected from Langkawi Island and Pangkor Island from six and ten sampling stations respectively, to determine the activity of 232Th, 230Th and 228Th in dissolved (DISS and suspended particulate matter (SPM phases, and estimate the sources and origin of SPM into the marine environment. The results in terms of volume activity concentration (mBq/L shows that the activity level of 228ThDISS was higher than 228ThSPM at all sampling stations possibly due to the behaviour of the 228Th parent, 228Ra which is easily desorbed from SPM. At several stations far from the coast; stations L4 (4.58km, P7 (3.16 km, P6 (2.1 km, P10 (1.38 km, the activity of 232ThDISS was higher compared to 232ThSPM. These stations behave the same way as the open ocean in which 232ThDISS is contributed by atmospheric dust. Indeed, the partition of thorium between dissolved and SPM phase can be used to detect anthropogenic organic pollution as in station L6 in which thorium activity in dissolved phase is higher compared to in SPM phase. Moreover, the use of the (232Th/230ThSPM ratio is useful to detect lithogenic input to the marine environment in which the ratio ranges from 0.13 to 0.5 and 0.7 to 3.16 for stations that are far and near to the coast respectively, except for station P1. However the data analysis shows that there is no clear pattern of kd values at both sampling sites, probably due to the adsorption and desorption processes of 232Th and 230Th that occurs in the water column. Nevertheless, as the SPM concentration (mg/L increases, the kd value decreases except for the activity of 228Th which shows a strong negative correlation with SPM.

  15. Surface pressure data for a supersonic-cruise airplane configuration at Mach numbers of 2.30, 2.96, 3.30

    Science.gov (United States)

    Shrout, B. L.; Corlett, W. A.; Collins, I. K.

    1979-01-01

    The tabulated results of surface pressure tests conducted on the wing and fuselage of an airplane model in the Langley Unitary Plan wind tunnel are presented without analysis. The model tested was that of a supersonic-cruise airplane with a highly swept arrow-wing planform, two engine nacelles mounted beneath the wing, and outboard vertical tails. Data were obtained at Mach numbers of 2.30, 2.96, and 3.30 for angles of attack from -4 deg to 12 deg. The Reynolds number for these tests was 6,560,000 per meter.

  16. Application of LOGO!(230RL)in the control circuit of cooling-water pump motors in power plant%LOGO!(230RL)在发电厂冷却水泵电动机电气控制中的应用

    Institute of Scientific and Technical Information of China (English)

    田禾; 郑同明

    2003-01-01

    本文简要分析了电厂冷却水泵电动机传统控制电路存在的缺陷,提出了采用西门子超小型可编程控制器LOGO!230RL进行改造的方案,并详细分析了控制回路功能块图的工作原理.

  17. Closure Report for Corrective Action Unit 230: Area 22 Sewage Lagoons and Corrective Action Unit 320: Area 22 Desert Rock Airport Strainer Box Nevada Test Site, Nevada

    Energy Technology Data Exchange (ETDEWEB)

    D. S. Tobiason

    2001-07-01

    This Closure Report (CR) describes the remediation activities performed and the results of verification sampling conducted at Corrective Action Unit (CAU) 230, Area 22 Sewage Lagoons and CAU 320, Area 22 Desert Rock Airport Strainer Box. The CAU is currently listed in Appendix III of the Federal Facility Agreement and Consent Order (FFACO, 1996). The CAU is located in Area 22 of the Nevada Test Site (NTS) (Figure 1) and consists of the following Corrective Action Sites (CASs): 22-03-01- Sewage Lagoon (CAU 230); and 22-99-01- Strainer Box (CAU 320). Included with CAS 22-99-01 is a buried Imhoff tank and a sludge bed. These CAUs will be collectively referred to in this plan as the Area 22 Sewage Lagoons site. Site characterization activities were done during September 1999. Characterization of the manholes associated with the septic system leading to the Imhoff tank was done during March 2000. The results of the characterization presented in the Corrective Action Decision Document (CADD) indicated that only the sludge bed (CAS 22-99-01) contained constituents of concern (COC) above action levels and required remediation (U.S. Department of Energy, Nevada Operations Office [DOE/NV], 2000a).

  18. Corrosion behavior of Haynes {sup registered} 230 {sup registered} nickel-based super-alloys for integrated coal gasification combined cycle syngas plants. A plant exposure study

    Energy Technology Data Exchange (ETDEWEB)

    Lee, Sungkyu; Lee, Jieun; Kang, Suk-Hwan; Lee, Seung-Jong; Yun, Yongseung [Institute for Advanced Engineering (IAE), Gyeonggi-do (Korea, Republic of). Plant Engineering Center; Kim, Min Jung [Sungkyunkwan Univ, Gyeonggi-do (Korea, Republic of). Advanced Materials Technology Research Center

    2015-07-01

    The corrosion behavior of commercially available Haynes {sup registered} 230 {sup registered} nickel-based alloy samples was investigated by exposure to coal-gasifying integrated coal gasification combined cycle pilot plant facilities affiliated with the Institute for Advanced Engineering (2.005 MPa and 160-300 C). The morphological and microstructural analyses of the exposed samples were conducted using scanning electron microscopy and energy-dispersive X-ray spectroscopy analysis on the external surface of the recovered corrosion test samples to obtain information of the corrosion scale. These analyses based on the pre- and post-exposure corrosion test samples combined with thermodynamic Ellingham-Pourbaix stability diagrams provided preliminary insight into the mechanism of the observed corrosion behavior prevailing in the piping materials that connected the particulate removal unit and water scrubber of the integrated coal gasification combined cycle pilot plant. Uniform material wastage was observed after 46 hours of operation, and a preliminary corrosion mechanism was suggested: the observed material waste and corrosion behavior of the Haynes {sup registered} 230 {sup registered} nickel-based alloy samples cut off from the coal syngas integrated coal gasification combined cycle plant were explained by the formation of discontinuous (complex) oxide phases and subsequent chlorine-induced active oxidation under the predominantly reducing environment encountered. This contribution continues the already published studies of the Fe-Ni-Cr-Co alloy Haynes {sup registered} 556 {sup registered}.

  19. Transfer of {sup 238}U, {sup 230}Th, {sup 226}Ra, and {sup 210}Pb from soils to tree and shrub species in a Mediterranean area

    Energy Technology Data Exchange (ETDEWEB)

    Blanco Rodriguez, P. [Natural Radioactivity Group, Facultad de Ciencias, Universidad de Extremadura, Avda. de Elvas s/n, 06071 Badajoz (Spain); Vera Tome, F. [Natural Radioactivity Group, Facultad de Ciencias, Universidad de Extremadura, Avda. de Elvas s/n, 06071 Badajoz (Spain)], E-mail: fvt@unex.es; Lozano, J.C. [Natural Radioactivity Group, Facultad de Ciencias, Universidad de Extremadura, Avda. de Elvas s/n, 06071 Badajoz (Spain); Laboratorio de Radiaciones Ionizantes, Facultad de Ciencias, Universidad de Salamanca, 37008 Salamanca (Spain); Perez Fernandez, M.A. [Natural Radioactivity Group, Facultad de Ciencias, Universidad de Extremadura, Avda. de Elvas s/n, 06071 Badajoz (Spain); Area de Ecologia, Universidad Pablo Olavide, Carretera de Utrera km. 1, 41013 Sevilla (Spain)

    2010-06-15

    The soil-to-plant transfer factors of natural uranium isotopes ({sup 238}U and {sup 234}U), {sup 230}Th, {sup 226}Ra, and {sup 210}Pb were studied in a disused uranium mine located in the Extremadura region in the south-west of Spain. The plant samples included trees (Quercus ilex, Quercus suber, and Eucalyptus cameldulensis) and one shrub (Cytisus multiflorus). All of them are characteristic of Mediterranean environments. The activity concentrations in leaves and fruit were determined for the tree species at different stages of growth. For the shrub, the total above-ground fraction was considered in three seasons. For old leaves and fruit, the highest activity concentrations were found in Eucalyptus cameldulensis for all the radionuclides studied, except in the case of {sup 230}Th that presented similar activity concentrations in all of the tree species studied. In every case, the transfer to fruit was less than the transfer to leaves. In the shrub, the results depended on the season of sampling, with the highest value obtained in spring and the lowest in autumn. Important correlations were obtained for {sup 238}U and {sup 226}Ra between the activity ratio in soils with that in leaves or fruit.

  20. Dominance of multidrug-resistant Denmark(14)-32 (ST230) clone among Streptococcus pneumoniae serotype 19A isolates causing pneumococcal disease in Bulgaria from 1992 to 2013.

    Science.gov (United States)

    Setchanova, Lena Petrova; Alexandrova, Alexandra; Dacheva, Daniela; Mitov, Ivan; Kaneva, Radka; Mitev, Vanio

    2015-02-01

    A pneumococcal conjugate vaccine (PCV10) was introduced in Bulgarian national immunization program since April 2010. Clonal composition based on pulsed-field gel electrophoresis and multilocus sequence typing genotyping of 52 serotype 19A Streptococcus pneumoniae isolates was analyzed. These were invasive and respiratory isolates collected between 1992 and 2013 from both children (78.8% clone. The most frequent sequence type (ST) was ST230 (48.1%) and together with four other closely related STs (15.4%), belonging to ST1611, ST276, ST7466, and ST2013, which were single- and double-locus variants; they were included in the main CC230. The disappearance of highly drug-resistant ST663 clone and emergence of new clones as CC320 and CC199 was also observed among the rest 19A isolates. A comparison of clonal composition between invasive and noninvasive isolates did not show a great genetic diversity among both kinds of isolates. Continuous surveillance of serotype 19A population following the introduction of PCV10 is essential to evaluate the impact of the vaccine on the epidemiology of this serotype.

  1. Measurement of the Magnetic Fields from High-Voltage (230 kV Substations in Tehran and Assessment of Their Effects

    Directory of Open Access Journals (Sweden)

    Mahdieh Sharifi Fard

    2010-06-01

    Full Text Available Introduction: Recent industrial developments in human societies have caused rapid advancements in technologies of production and distribution of electricity, which in turn result in enhancement of power networks and utilization of high voltages. These networks and the high voltages in transfer lines cause the exposure to electric and magnetic fields. In this study, the situation regarding the magnetic fields from high-voltage (230 kV substations in Tehran was investigated. Material and Methods: In this study, 8 high-voltage (230 kV substations were selected (Shous, Shahid Firouzi, Ozgol, Kan, Tehranpars, Azadegan, Ghorkhane and Besat substations. The premises of each substation was divided into some stations and measurements were done in each one. Measurements were done according to the IEEE std 644-1994 Standard in a way that the device, specifically its probe, was kept at a height of 1 meter above the ground surface. Then, we tried to examine the probable effects of exposure to magnetic fields through the Essex questionnaire, with Cronbach coefficient of 94%, completed by the employees of the substations. These questionnaires were completed by substation operators as an exposed group (36 persons and the employees of the office section of the Tehran regional electric company as a witness group (32 persons. Results: The measured density in none of the stations exceeded the standard limits of the International Commission on Non-Ionizing Radiation Protection. With regard to the questionnaire results about mental and neurological, cardiac and respiratory, and gastrointestinal and auditory disorders, we observed significant differences between witness and exposed groups, however, regarding skin allergies, there was no significant difference. Conclusion: Among all control rooms, the highest measured magnetic field was 6.9 mG in the Ozgol Substation Control Room and the lowest was 2 mG in the post of Shahid Firouzi. The control room of Ozgol

  2. Extreme fractionation of 234U /238U and 230Th /234U in spring waters, sediments, and fossils at the Pomme de Terre Valley, southwestern Missouri

    Science.gov (United States)

    Szabo, Barney J.

    1982-09-01

    Isotopic fractionation as great as 1600% exists between 234U and 238U in spring waters, sediments, and fossils in the Pomme de Terre Valley, southwestern Missouri. The activity ratios of 234U /238U in five springs range from 7.2 to 16 in water which has been discharged for at least the past 30,000 years. The anomalies in 234U /238U ratio in deep water have potential usefulness in hydrologic investigations in southern Missouri. Clayey units overlying the spring bog sediments of Trolinger Spring are enriched in 230Th relative to their parent 234U by as much as 720%. The results indicate that both preferential displacement via alpha recoil ejection and the preferential emplacement via recoiling and physical entrapment are significant processes that are occurring in the geologic environment.

  3. Extreme fractionation of 234U 238U and 230Th 234U in spring waters, sediments, and fossils at the Pomme de Terre Valley, southwestern Missouri

    Science.gov (United States)

    Szabo, B. J.

    1982-01-01

    Isotopic fractionation as great as 1600% exists between 234U and 238U in spring waters, sediments, and fossils in the Pomme de Terre Valley, southwestern Missouri. The activity ratios of 234U 238U in five springs range from 7.2 to 16 in water which has been discharged for at least the past 30,000 years. The anomalies in 234U 238U ratio in deep water have potential usefulness in hydrologic investigations in southern Missouri. Clayey units overlying the spring bog sediments of Trolinger Spring are enriched in 230Th relative to their parent 234U by as much as 720%. The results indicate that both preferential displacement via alpha recoil ejection and the preferential emplacement via recoiling and physical entrapment are significant processes that are occurring in the geologic environment. ?? 1982.

  4. Expression of somatostatin receptors in human melanoma cell lines: effect of two different somatostatin analogues, octreotide and SOM230, on cell proliferation.

    Science.gov (United States)

    Martinez-Alonso, M; Llecha, N; Mayorga, M E; Sorolla, A; Dolcet, X; Sanmartin, V; Abal, L; Casanova, J M; Baradad, M; Yeramian, A; Egido, R; Puig, S; Vilella, R; Matias-Guiu, X; Marti, R M

    2009-01-01

    Somatostatin analogues (SAs) are potential anticancer agents. This study was designed to investigate the expression of somatostatin receptors (SSTRs) in melanoma cells and the effect of two SAs on cell proliferation and viability. Eighteen primary and metastatic human cutaneous melanoma cell lines were treated with octreotide and SOM230. Expression of SSTR1, SSTR2, SSTR3 and SSTR5 was assessed by real-time polymerase chain reaction. Proliferation, viability and cell death were assessed using standard assays. Inhibition was modelled by mixed-effect regression. Melanoma cells expressed one or more SSTR. Both SAs inhibited proliferation of most melanoma cell lines, but inhibition was < 50%. Neither SA affected cell viability or induced cell death. The results suggest that melanoma cell lines express SSTRs. The SAs investigated, under the conditions used in this study, did not, however, significantly inhibit melanoma growth or induce cell death. Novel SAs, combination therapy with SAs and their anti-angiogenic properties should be further investigated.

  5. Environmental Assessment and Finding of No Significant Impact: Curecanti-Lost Canyon 230-kV Transmission Line Reroute Project, Montrose County, Colorado

    Energy Technology Data Exchange (ETDEWEB)

    N/A

    2000-03-20

    The Department of Energy (DOE), Western Area Power Administration (Western) is proposing to reroute a section of the Curecanti-Lost Canyon 230-kilovolt (kV) transmission line, in Montrose County, Colorado. A portion of the transmission line, situated 11 miles southeast of Montrose, Colorado, crosses Waterdog Peak, an area of significant geologic surface activity, which is causing the transmission line's lattice steel towers to shift. This increases stress to structure hardware and conductors, and poses a threat to the integrity of the transmission system. Western proposes to relocate the lattice steel towers and line to a more geologically stable area. The existing section of transmission line and the proposed relocation route cross Bureau of Land Management and private land holdings.

  6. Marked disequilibrium between 234Th and 230Th of the 238U natural radioactive decay chain in IAEA reference materials n. 312, 313 and 314.

    Science.gov (United States)

    Colaianni, A; D'Erasmo, G; Pantaleo, A; Schiavulli, L

    2011-02-01

    A new laboratory for the spectroscopy of natural radioactivity with a good energy resolution is presented. It consists of two distinct parts equipped, respectively, the first one with a HpGe γ-ray detector, whose setup has been already completed, and the second one with large area Silicon α-ray detectors and a radiochemical section for thin α-samples preparation, whose setup is yet in progress and will be the argument of a separate work. The γ-ray spectrometer was calibrated by means of IAEA Reference Materials n. 312, 313, 314 and 375. A large difference from the predictions of secular equilibrium emerged between the activities of (234)Th and (230)Th in Materials n. 312, 313 and 314.

  7. Marked disequilibrium between {sup 234}Th and {sup 230}Th of the {sup 238}U natural radioactive decay chain in IAEA reference materials n. 312, 313 and 314

    Energy Technology Data Exchange (ETDEWEB)

    Colaianni, A. [Dipartimento di Geologia e Geofisica dell' Universita di Bari, Via Orabona, 4 - 70125 Bari (Italy); I.N.F.N. Sezione di Bari, Via G. Amendola, 173 - 70126 Bari (Italy); D' Erasmo, G. [Dipartimento Interateneo di Fisica dell' Universita di Bari, Via G. Amendola, 173 - 70126 Bari (Italy); I.N.F.N. Sezione di Bari, Via G. Amendola, 173 - 70126 Bari (Italy); Pantaleo, A., E-mail: pantaleo@ba.infn.i [I.N.F.N. Sezione di Bari, Via G. Amendola, 173 - 70126 Bari (Italy); Schiavulli, L. [Dipartimento Interateneo di Fisica dell' Universita di Bari, Via G. Amendola, 173 - 70126 Bari (Italy); I.N.F.N. Sezione di Bari, Via G. Amendola, 173 - 70126 Bari (Italy)

    2011-02-15

    A new laboratory for the spectroscopy of natural radioactivity with a good energy resolution is presented. It consists of two distinct parts equipped, respectively, the first one with a HpGe {gamma}-ray detector, whose setup has been already completed, and the second one with large area Silicon {alpha}-ray detectors and a radiochemical section for thin {alpha}-samples preparation, whose setup is yet in progress and will be the argument of a separate work. The {gamma}-ray spectrometer was calibrated by means of IAEA Reference Materials n. 312, 313, 314 and 375. A large difference from the predictions of secular equilibrium emerged between the activities of {sup 234}Th and {sup 230}Th in Materials n. 312, 313 and 314.

  8. Origin of the {sup 238}U-{sup 230}Th disequilibrium in magmas from subduction zones: the Arenal example; Origine du desequilibre {sup 238}U-{sup 230}TH dans les magmas des zones de subduction: exemple de l`Arenal

    Energy Technology Data Exchange (ETDEWEB)

    Villemant, B. [Paris-6 Univ., 75 (France)

    1996-12-31

    The existence in some volcanic products of strong excess of {sup 238}U with respect to {sup 230}Th is one of the characteristics of volcanic arc magmas. These excesses are generally attributed to fluid additions inside mantellic sources before magma segregation, differentiation and eruption. These fluids should be linked to the dehydration of the subducted rocks. These hypotheses are essentially based on correlations between {sup 10}Be, {sup 87}Sr anomalies, Ba/La ratios and on the distribution of volcanic centers with respect to the subduction zone. Recent studies suggest an evolution of the composition of volcanic sources in Central America from a depleted mantle type (MORB) in the North (Nicaragua) to a less transformed enriched type (OIB) in the South (Costa Rica). The Arenal volcano belongs to a transition zone between these two types. The preliminary study of trace elements and {sup 238}U-{sup 230}Th disequilibria in recent volcanic products (1968-1993) indicates a more complex situation. At least two different mantle sources were successively involved characterized by different Th/La and La/Yb ratios and very different to the OIB type. Also most lavas are in equilibrium with {sup 238}U/{sup 232}Th ratios of about 1.2 to 1.3. However, in eruptive cycle, some lavas are characterized by a strong {sup 238}U excess with respect to {sup 230}Th with cannot be linked to the sources, even when modified by fluids in depth. These results are interpreted in terms of heterogeneities of mantle sources and low depths late interactions with hydrothermal fluids during eruptions. Abstract only. (J.S.). 2 refs.

  9. Determination {sup 230}Th by ICP-MS for the control of activities of restoration of an area of land contaminated with uranium mining sterile; Determinacion de {sup 230}Th mediante ICP-MS durante el control de las actividades de restauracion de un area de terreno contaminada con esteriles de mineria de uranio

    Energy Technology Data Exchange (ETDEWEB)

    Yague, L.; Conde, E.; Navarro, N.; Fernandez, M.; Ortiz, M. I.; Noguerales, C.; Gasco, C.

    2013-07-01

    In 2012, within the activities for the Project PIMIC (CIEMAT) took out the first stage of restoration of a contaminated area. This is an area which had a residual contamination due to burial tailings uranium mining. The activities have been: elimination of the arboreal mass, excavation of the ground and earthmoving. The methodology applied is described in this work and is based on the combination of gamma spectrometry technique and development of a method of analysis {sup 230}Th by ICP-MS. (Author)

  10. 2 x 230 kV transmission line Banabuiu/Fortaleza; a Brazilian reality in the natural power increase with conductors bundle expansion; LT 2 x 230 kV Banabuiu/Fortaleza; uma realidade brasileira no aumento da potencia natural com a expansao do feixe de condutores

    Energy Technology Data Exchange (ETDEWEB)

    Oliveira e Silva, Romero de; Lacerda, Lenildo J.B.; L. Filho, Maviael Xavier [Companhia Hidroeletrica do Sao Francisco (CHESF), Recife, PE (Brazil). Dept. de Projeto e Construcao de Linhas de Transmissao

    1997-12-31

    This paper presents the adapted design criteria, the performed construction aspects and the operational performance obtained with the bundle expansion applied in the 2 x 230 kV TL Banabuiu/Fortaleza. The basic project conception was supported by the principles developed for the High Surge Impedance Loading Lines (HSIL), which natural capacity improvements, for the electrical system are found with the electrical parameters changes, yielded by the conductor cables geometry modify. As a pioneer apply and technological adequacy unpublished in the world, the matter has raised great interest in the technical, scientific and business community. (author) 3 refs., 2 figs., 1 tab.

  11. 高分辨电感耦合等离子体质谱法测定铀矿石样品中234U/238U、230Th/232 Th和228Ra/226Ra同位素比值%Determination of 234U/238U、230Th/232Th、228Ra/226Ra Ratios in Uranium Ores by High-resolution Inductively Coupled PlasmaMass Spectrometry

    Institute of Scientific and Technical Information of China (English)

    郭冬发; 张彦辉; 武朝晖; 朱明燕; 王玉学; 崔建勇; 谭靖

    2009-01-01

    采用氢氟酸-硝酸-盐酸混合酸密闭消解含铀矿石样品,用阴离子交换树脂、阳离子交换树脂和锶特效树脂逐级分离富集铀、钍和镭.使用高分辨电感耦合等离子体质谱(HR-ICPMS)测定分离纯化液中234 U/238 U、230 Th/232 Th和228 Ra/226 Ra同位素.比值的测量精密度取决于比值的大小和对应核素浓度的大小.对质量浓度为10 ng/mL天然铀测量液,234 U/238 U的测量精密度优于1.2%;对230 Th质量浓度为0.6ng/mL且瑚230 Th和232 Th质量浓度接近的测量液,230 Th/232 Th的测量精密度为1.2%;对228 Ra质量浓度为0.48 pg/mL且228 Ra和226 Ra质量浓度接近的测量液,228 Ra/226 Ra的测量精密度为4.0%.

  12. Rubber Additives Silane-M and KH230 in the Application of SBR/White Carbon Black Composite Materials%橡胶助剂Silane-M与KH230在SBR/白炭黑复合材料中的应用

    Institute of Scientific and Technical Information of China (English)

    彭华龙; 房建明; 刘建国; 朱园

    2016-01-01

    分别用不同含量的KH230加促进剂M及Silane-M制备了SBR/白炭黑复合材料,对其结构和性能进行了研究.发现:KH230改善了复合材料的力学性能、 耐磨性能和动态疲劳性能,但降低复合材料的结合胶含量和表观交联密度;促进剂M能提高复合材料中橡胶基体的网络交联密度,但未提高复合材料的结合胶含量和撕裂性能,缩短焦烧时间;由于Silane-M双官能团显著增强白炭黑与橡胶的界面相互作用,提高复合材料的结合胶含量、 表观交联密度、 力学和动态力学性能.

  13. Authigenic 10Be/9Be ratios and 10Be-fluxes (230Thxs-normalized) in central Baffin Bay sediments during the last glacial cycle: Paleoenvironmental implications

    Science.gov (United States)

    Simon, Quentin; Thouveny, Nicolas; Bourlès, Didier L.; Nuttin, Laurence; Hillaire-Marcel, Claude; St-Onge, Guillaume

    2016-05-01

    Authigenic 10Be/9Be ratios and 10Be-fluxes reconstructed using the 230Thxs normalization, proxies of the cosmogenic radionuclide 10Be production rate in the atmosphere, have been measured in a sedimentary core from Baffin Bay (North Atlantic) spanning the last 136 ka BP. The normalization applied on the exchangeable (authigenic) 10Be concentrations using the authigenic 9Be isotope and 230Thxs methods yield equivalent results strongly correlated with sedimentological parameters (grain-size and mineralogy). Lower authigenic beryllium (Be) concentrations and 10Be/9Be ratios are associated with coarse-grained carbonate-rich layers, while higher authigenic Be values are related to fine-grained felspar-rich sediments. This variability is due to: i) sediment composition control over beryllium-scavenging efficiency and, ii) glacial history that contributed to modify the 10Be concentration in Baffin Bay by input and boundary scavenging condition changes. Most paleo-denudation rates inferred from the 10Be/9Be ratio vary weakly around 220 ± 76 tons.km-2.yr-1 (0.09 ± 0.03 mm.yr-1) corresponding to relatively steady weathering fluxes over the last glacial cycle except for six brief intervals characterized by sharp increases of the denudation rate. These intervals are related to ice-surging episodes coeval with Heinrich events and the last deglaciation period. An average freshwater flux of 180.6 km3.yr-1 (0.006 Sv), consistent with recent models, has been calculated in order to sustain glacially-derived 10Be inputs into Baffin Bay. It is concluded that in such environments, the authigenic 10Be measured mainly depends on climatic effects related to the glacial dynamics, which masks the 10Be production variation modulated by geomagnetic field changes. Altogether, these results challenge the simple interpretation of 10Be-concentration variation as a proxy of Interglacial/Glacial (interstadial/stadial) cycles in Arctic and sub-Arctic regions. They rather suggest the effect of

  14. Measurement of Strange Quark Contributions to the Nucleon's Form Factors at Q^2=0.230 (GeV/c)^2

    CERN Document Server

    Maas, F E; Aulenbacher, K; Baunack, S; Capozza, L; Diefenbach, J; Grimm, K; Imai, Y; Hammel, T; Von Harrach, D; Kabuss, E M; Kothe, R; Lee, J H; Lorente, A; Ginja, A L; Nungesser, L; Schilling, E P; Stephan, G; Weinrich, C; Altarev, I S; Arvieux, J; Collin, B; Frascaria, R; Guidal, M; Kunne, Ronald Alexander; Marchand, D; Morlet, M; Ong, S; Van de Wiele, J; Kowalski, S; Plaster, B; Suleiman, R; Taylor, S

    2004-01-01

    We report on a measurement of the parity-violating asymmetry in the scattering of longitudinally polarized electrons on unpolarized protons at a $Q^2$ of 0.230 (GeV/c)^2 and a scattering angle of \\theta_e = 30^o - 40^o. Using a large acceptance fast PbF_2 calorimeter with a solid angle of \\Delta\\Omega = 0.62 sr the A4 experiment is the first parity violation experiment to count individual scattering events. The measured asymmetry is A_{phys} =(-5.44 +- 0.54_{stat} +- 0.27_{\\rm sys}) 10^{-6}. The Standard Model expectation assuming no strangeness contributions to the vector form factors is $A_0=(-6.30 +- 0.43) 10^{-6}$. The difference is a direct measurement of the strangeness contribution to the vector form factors of the proton. The extracted value is G^s_E + 0.225 G^s_M = 0.039 +- 0.034 or F^s_1 + 0.130 F^s_2 = 0.032 +- 0.028.

  15. Fission-fragment angular distributions for /sup 230/Th(n,f) in the vicinity of the 715 keV resonance

    Energy Technology Data Exchange (ETDEWEB)

    Sicre, A.; Benfoughal, T.; Bruneau, B.; Asghar, M.; Barreau, G.; Caitucoli, F.; Doan, T.P.; James, G.D.; Leroux, B.

    1985-11-18

    Fission-fragment angular distributions have been measured for the neutron-induced fission of /sup 230/Th in the vicinity of the 715 keV resonance with a 2.5 keV (FWHM) neutron energy resolution. An analysis was performed to find a set of fission barrier characteristics that reproduce simultaneously the present angular distribution data and the fission cross-section data of Blons et al. The analysis results show that the data for the 715 keV resonance could be fitted only if allowance is made for the existence of two rotational bands with opposite parities but with the same K quantum number. The moment of inertia parameter (h/2..pi..)/sup 2//2phi extracted from the analysis has a value of 1.9 keV, which is compatible with the existence of a third minimum in the fission barrier at a quadrupole deformation of epsilon/sub 2/=0.85. (orig.).

  16. A SHORTCUT FORMULA FOR THE 230-MeV PROTON-INDUCED NEUTRON DOSE EQUIVALENT IN CONCRETE AFTER A METAL SHIELD, DERIVED FROM MONTE CARLO SIMULATIONS WITH MCNPX.

    Science.gov (United States)

    Taal, A; van der Kooij, A; Okx, W J C

    2016-11-01

    Monte Carlo simulations were performed with MCNPX to determine the neutron dose equivalent in thick concrete after a metal shield, a double-layered shielding configuration. In the simulations, a 230-MeV proton beam impinging on a copper target was used to produce the neutrons. For forward angles up to 30° with respect to the proton beam, it is found that the neutron dose equivalent in thick concrete after a metal layer can be expressed in a single formula. This single formula being the neutron dose equivalent formula for a single thick concrete shield enhanced with an additional exponential term. The exponent of this additional exponential term is related to the relative macroscopic neutron removal cross section of the metal with respect to the concrete. The single formula found fits MCNPX data for the neutron dose equivalent in thick concrete after layers of metal ranging from beryllium to lead. First attempts were made to make this shortcut formula applicable to alloys and compounds of metals. © The Author 2015. Published by Oxford University Press. All rights reserved. For Permissions, please email: journals.permissions@oup.com.

  17. Cloning of the 5' mRNA for the 230-kD bullous pemphigoid antigen by rapid amplification of cDNA ends.

    Science.gov (United States)

    Elgart, G W; Stanley, J R

    1993-08-01

    The 230-kD bullous pemphigoid antigen (BPAG1), defined by autoantibodies in patient sera, is a hemidesmosomal plaque protein in the same gene family as the intracellular proteins desmoplakin I/II and plectin. We had previously isolated, from a lambda gt11 library, overlapping cDNA clones with 6921 bp of mRNA sequence for BPAG1. The coding sequence encoded by these clones included the 3' stop codon but not the 5' coding and non-coding region of the mRNA. To obtain these sequences we used the polymerase chain reaction (PCR) method called rapid amplification of cDNA ends (RACE). The PCR products were cloned into plasmids and sequenced. With five PCR primers we were able to obtain overlapping clones containing the 5' region of the mRNA. An upstream stop codon in frame with the rest of the coding sequence demonstrates that the full 5' coding sequence is obtained. Four different PCR products from two separate reactions had the same 5' end, suggesting that this 5' end is near, or at, the transcription start site. No alternatively spliced clones were found and no transmembrane site was predicted, confirming that BPAG1 is an intracellular hemidesmosomal plaque protein.

  18. Hydrothermal scavenging on the Juan de Fuca Ridge: {sup 230}Th{sub xs}, {sup 10}Be, and REEs in ridge-flank sediments

    Energy Technology Data Exchange (ETDEWEB)

    German, C.R.; Colley, S.; Higgs, N.C.; Ludford, E.M. [Southampton Oceanography Centre, Southampton (United Kingdom)] [and others

    1997-10-01

    We have investigated the geochemistry of a hydrothermally enriched sediment core recovered from the western flank of the N.Cleft Segment, Juan de Fuca Ridge, {approximately}8km west of the {open_quotes}MegaPlume{close_quotes} area previously identified near 45{degrees}N. The core contains varying biogenic, lithogenic, and hydrothermal components, as reflected in CaCO{sub 3}, Al, and Fe contents, respectively. Horizons of pronounced hydrothermal input, in core-top sediments and at depth, exhibit increased concentrations of Fe, Cu, Zn, and Pb and shifts in Pb isotopic compositions toward nonradiogenic (MORB/hydrothermal) values. REE concentrations co-vary with hydrothermal Fe down-core, and shale-normalised REE distribution patterns exhibit both negative Ce-anomalies and positive Eu-anomalies, indicative of input from plume-particle fall-out. Unsupported {sup 230}Th{sub xs} activities down-core are consistent with continuous slow sediment accumulation rates of 0.54 cm/ky for 200 ky since the deposition of the deeper Fe-rich horizon. {sup 10}Be{sub (0)}, and {sup 9}Be isotope concentrations also co-vary with hydrothermal Fe down-core and exhibit {sup 10}Be{sub (0)} ratios which approach that of Pacific Ocean deep water, indicative of a seawater-scavenging source. 49 refs., 9 figs., 7 tabs.

  19. Detection of heterozygous MDR1 nt230(del4 mutation in a mixed-breed dog: case report of possible doxorubicin toxicosis

    Directory of Open Access Journals (Sweden)

    Monobe MM

    2013-10-01

    Full Text Available Marina Mitie Monobe,1 Kari V Lunsford,2 João Pessoa Araújo Jr,3 Camilo Bulla41Department of Veterinary Clinics, School of Veterinary Medicine and Animal Science, Sao Paulo State University, Botucatu, Brazil; 2Department of Clinical Sciences and Animal Health Center, College of Veterinary Medicine, Mississippi State University, MS, USA; 3Department of Microbiology and Immunology, Biosciences Institute, Sao Paulo State University, Botucatu, Brazil; 4Department of Pathobiology and Population Medicine, College of Veterinary Medicine, Mississippi State University, MS, USAAbstract: P-glycoprotein (ABCB1, the product of the Multidrug Resistance Gene (MDR1 (ABCB1 gene, is the major multidrug transporter contributing to the barrier function of several tissues and organs, including the brain. A four base pair deletion mutation in MDR1 results in the absence of a functional form of ABCB1 and loss of its protective function. Severe intoxication with the ABCB1 substrate, such as with anticancer drugs, has been attributed to genetic lack of functional ABCB1. This mutation has been detected in more than 10 dog breeds as well as in mixed-breed dogs living in different countries. In Brazil, evaluation for this mutation is not as widely available and is rarely used by veterinarians, so drug intoxication may be underdiagnosed. This is the first report from Brazil of doxorubicin neurotoxicity in a mixed-breed dog with the MDR1 nt230(del4 mutation.Keywords: canine, toxicology, cancer, P-glycoprotein

  20. Radium-228 analysis of natural waters by Cherenkov counting of Actinium-228

    Energy Technology Data Exchange (ETDEWEB)

    Aleissa, Khalid A.; Almasoud, Fahad I.; Islam, Mohammed S. [Atomic Energy Research Institute, King Abdul Aziz City for Science and Technology, P.O. Box 6086, Riyadh 11442 (Saudi Arabia); L' Annunziata, Michael F. [IAEA Expert, Montague Group, P.O. Box 5033, Oceanside, CA 92052-5033 (United States)], E-mail: mlannunziata@cox.net

    2008-12-15

    The activities of {sup 228}Ra in natural waters were determined by the Cherenkov counting of the daughter nuclide {sup 228}Ac. The radium was pre-concentrated on MnO{sub 2} and the radium purified via ion exchange and, after a 2-day period of incubation to allow for secular equilibrium between the parent-daughter {sup 228}Ra({sup 228}Ac), the daughter nuclide {sup 228}Ac was isolated by ion exchange according to the method of Nour et al. [2004. Radium-228 determination of natural waters via concentration on manganese dioxide and separation using Diphonix ion exchange resin. Appl. Radiat. Isot. 61, 1173-1178]. The Cherenkov photons produced by {sup 228}Ac were counted directly without the addition of any scintillation reagents. The optimum Cherenkov counting window, sample volume, and vial type were determined experimentally to achieve optimum Cherenkov photon detection efficiency and lowest background count rates. An optimum detection efficiency of 10.9{+-}0.1% was measured for {sup 228}Ac by Cherenkov counting with a very low Cherenkov photon background of 0.317{+-}0.013 cpm. The addition of sodium salicylate into the sample counting vial at a concentration of 0.1 g/mL yielded a more than 3-fold increase in the Cherenkov detection efficiency of {sup 228}Ac to 38%. Tests of the Cherenkov counting technique were conducted with several water standards of known activity and the results obtained compared closely with a conventional liquid scintillation counting technique. The advantages and disadvantages of Cherenkov counting compared to liquid scintillation counting methods are discussed. Advantages include much lower Cherenkov background count rates and consequently lower minimal detectable activities for {sup 228}Ra and no need for expensive environmentally unfriendly liquid scintillation cocktails. The disadvantages of the Cherenkov counting method include the need to measure {sup 228}Ac Cherenkov photon detection efficiency and optimum Cherenkov counting volume, which are not at all required when liquid scintillation analysis is used.

  1. Radium-228 analysis of natural waters by Cherenkov counting of Actinium-228.

    Science.gov (United States)

    Aleissa, Khalid A; Almasoud, Fahad I; Islam, Mohammed S; L'Annunziata, Michael F

    2008-12-01

    The activities of (228)Ra in natural waters were determined by the Cherenkov counting of the daughter nuclide (228)Ac. The radium was pre-concentrated on MnO(2) and the radium purified via ion exchange and, after a 2-day period of incubation to allow for secular equilibrium between the parent-daughter (228)Ra((228)Ac), the daughter nuclide (228)Ac was isolated by ion exchange according to the method of Nour et al. [2004. Radium-228 determination of natural waters via concentration on manganese dioxide and separation using Diphonix ion exchange resin. Appl. Radiat. Isot. 61, 1173-1178]. The Cherenkov photons produced by (228)Ac were counted directly without the addition of any scintillation reagents. The optimum Cherenkov counting window, sample volume, and vial type were determined experimentally to achieve optimum Cherenkov photon detection efficiency and lowest background count rates. An optimum detection efficiency of 10.9+/-0.1% was measured for (228)Ac by Cherenkov counting with a very low Cherenkov photon background of 0.317+/-0.013cpm. The addition of sodium salicylate into the sample counting vial at a concentration of 0.1g/mL yielded a more than 3-fold increase in the Cherenkov detection efficiency of (228)Ac to 38%. Tests of the Cherenkov counting technique were conducted with several water standards of known activity and the results obtained compared closely with a conventional liquid scintillation counting technique. The advantages and disadvantages of Cherenkov counting compared to liquid scintillation counting methods are discussed. Advantages include much lower Cherenkov background count rates and consequently lower minimal detectable activities for (228)Ra and no need for expensive environmentally unfriendly liquid scintillation cocktails. The disadvantages of the Cherenkov counting method include the need to measure (228)Ac Cherenkov photon detection efficiency and optimum Cherenkov counting volume, which are not at all required when liquid scintillation analysis is used.

  2. Purification of selenium from thorium, uranium, radium, actinium and potassium impurities for low background measurements

    Energy Technology Data Exchange (ETDEWEB)

    Rakhimov, A.V. [Joint Institute for Nuclear Research (JINR), Dubna (Russian Federation); Uzbek Academy of Sciences, Tashkent (Uzbekistan). Inst. of Nuclear Physics (INP AS RUz); Warot, G. [CEA-CNRS, Modane (France). Laboratoire Souterrain de Modane (LSM); Karaivanov, D.V. [Joint Institute for Nuclear Research (JINR), Dubna (Russian Federation); Institute for Nuclear Research and Nuclear Energy (INRNE), Sofia (Bulgaria); Kochetov, O.I.; Lebedev, N.A.; Filosofov, D.V. [Joint Institute for Nuclear Research (JINR), Dubna (Russian Federation); Mukhamedshina, N.M.; Sadikov, I.I. [Uzbek Academy of Sciences, Tashkent (Uzbekistan). Inst. of Nuclear Physics (INP AS RUz)

    2013-07-01

    A technique of selenium purification from {sup 232}Th, {sup 238}U, {sup 226,228}Ra, {sup 227}Ac and {sup 40}K was developed. This technique is simple to perform and employs a minimum number of highly pure reagents (bidistilled water, nitric acid). Operations carried out during purification (elution, evaporation) practically exclude losses of the target product (chemical yields of Se > 99%). A test purification of 100 g of selenium was carried out using this technique. The efficiency of this technique was confirmed by low background gamma spectrometry of the purified selenium sample. Distribution coefficients of Th, U, Ra and Ac on DOWEX 50W- x 8 cation-exchange resin at different concentrations of selenium and nitric acid were experimentally determinated. Instrumental neutron activation analysis of bidistilled water, deionized water and nitric acid was performed. (orig.)

  3. The release of dissolved actinium to the ocean: A global comparison of different end-members

    Science.gov (United States)

    Geibert, W.; Charette, M.; Kim, G.; Moore, W.S.; Street, J.; Young, M.; Paytan, A.

    2008-01-01

    The measurement of short-lived 223Ra often involves a second measurement for supported activities, which represents 227Ac in the sample. Here we exploit this fact, presenting a set of 284 values on the oceanic distribution of 227Ac, which was collected when analyzing water samples for short-lived radium isotopes by the radium delayed coincidence counting system. The present work compiles 227Ac data from coastal regions all over the northern hemisphere, including values from ground water, from estuaries and lagoons, and from marine end-members. Deep-sea samples from a continental slope off Puerto Rico and from an active vent site near Hawaii complete the overview of 227Ac near its potential sources. The average 227Ac activities of nearshore marine end-members range from 0.4??dpm m- 3 at the Gulf of Mexico to 3.0??dpm m- 3 in the coastal waters of the Korean Strait. In analogy to 228Ra, we find the extension of adjacent shelf regions to play a substantial role for 227Ac activities, although less pronounced than for radium, due to its weaker shelf source. Based on previously published values, we calculate an open ocean 227Ac inventory of 1.35 * 1018??dpm 227Acex in the ocean, which corresponds to 37??moles, or 8.4??kg. This implies a flux of 127??dpm m-2 y- 1 from the deep-sea floor. For the shelf regions, we obtain a global inventory of 227Ac of 4.5 * 1015??dpm, which cannot be converted directly into a flux value, as the regional loss term of 227Ac to the open ocean would have to be included. Ac has so far been considered to behave similarly to Ra in the marine environment, with the exception of a strong Ac source in the deep-sea due to 231Paex. Here, we present evidence of geochemical differences between Ac, which is retained in a warm vent system, and Ra, which is readily released [Moore, W.S., Ussler, W. and Paull, C.K., 2008-this issue. Short-lived radium isotopes in the Hawaiian margin: Evidence for large fluid fluxes through the Puna Ridge. Marine Chemistry]. Another potential mechanism of producing deviations in 227Ac/228Ra and daughter isotope ratios from the expected production value of lithogenic material is observed at reducing environments, where enrichment in uranium may occur. The presented data here may serve as a reference for including 227Ac in circulation models, and the overview provides values for some end-members that contribute to the global Ac distribution. ?? 2007 Elsevier B.V. All rights reserved.

  4. Determination of {sup 2}30Th (Ionium) in uranium ores and wastes from uranium reprocessing. IV. Calculation of ionium separation yield; Determinacion de {sup 2}39Th (Ionio) en minerales y residuos del procesado de Uranio. IV: Determinacion del rendimiento en la separacion del {sup 2}30 Th

    Energy Technology Data Exchange (ETDEWEB)

    Galiano Sedano, J. A.; Acena Barrenechea, M. L.

    1974-07-01

    For determining ionium ({sup 2}30Th) in minerals and uranium processing wastes by precipitation with fluorhidric acid, using lanthanum as carrier, and selective extraction with tenoytrifluoroacetone (TTA) followed by radiometric determination of the isolated nuclide, it is necessary the use of a tracer since the chemical yield of the separation ranges between wide limits. In this paper, the use of the beta-emitter {sup 2}34Th as the most convenient tracer is discussed. Equations are derived for correcting for counting errors introduced by other thorium isotopes which are present either in the sample or in the tracer, as well as for calculating the chemical yield of the separation. These equations have been experimentally checked by ionium determinations carried out with different types of samples. (Author) 18 refs.

  5. High-resolution dating of Co-rich crusts: A comparative study using the methods of orbital pacing and 230Thex/232Th dating

    Institute of Scientific and Technical Information of China (English)

    2009-01-01

    Due to their slow growth rates, seamount Co-rich crusts are very difficult to date with high resolution and precision. This paper is to test the use of orbital pacing on the growth profile of crusts to determine high-resolution age and growth rate. Crust CB14 from the central Pacific Ocean was selected for this study. We first examined the growth pattern in detail under a reflected-light microscope and ascertained that the growth environment was stable for the sub-layer 1 (0-3 mm). We then used electron micro-probe line-scanning to obtain elemental profiles. The pattern of the power spectrum analysis of the Al-profile revealed that there are significant cycles of 113.9, 87.8, 51.5, 42.2 and 25.8 μm. These cycles correspond to the Milankovitch cycles of 53.1, 41, 24, 19.7 and 12 ka, respectively, and yield the growth rate of about 2.14 mm/Ma and an age of about 1.40 Ma for the boundary between the sub-layer 1 and sub-layer 2. We also used a drilling machine with a numerically controlled drive to obtain high-resolution samples at 0.1mm intervals, and used the 230Thex/232Th method to date the samples. For the uppermost 1.3 mm, the growth rate was about 2.15 mm/Ma, and the age for the layer at the depth of 3 mm was about 1.40 Ma, which coincides perfectly with the results obtained from orbital pacing. Thus, it is considered that orbital pacing is a new and effective method to determine the growth rate of the seamount Co-rich crust. This method is applicable for establishing a high-resolution age frame for the crusts of the world’s oceans.

  6. High-resolution dating of Co-rich crusts: A comparative study using the methods of orbital pacing and 230Thex/232Th dating

    Institute of Scientific and Technical Information of China (English)

    HAN XiQiu; QIU ZhongYan; MA WeiLin; QIAN JiangChu

    2009-01-01

    Due to their slow growth rates, seamount Co-rich crusts are very difficult to date with high resolution and precision. This paper is to test the use of orbital pacing on the growth profile of crusts to determine high-resolution age and growth rate. Crust CB14 from the central Pacific Ocean was selected for this study. We first examined the growth pattern in detail under a reflected-light microscope and ascertained that the growth environment was stable for the sub-layer 1 (0-3 mm). We then used electron micro-probe line-scanning to obtain elemental profiles. The pattern of the power spectrum analysis of the AI-profile revealed that there are significant cycles of 113.9, 87.8, 51.5, 42.2 and 25.8 pro. These cycles correspond to the Milankovitch cycles of 53.1, 41,24, 19.7 and 12 ka, respectively, and yield the growth rate of about 2.14 mm/Ma and an age of about 1.40 Ma for the boundary between the sub-layer 1 and sub-layer 2. We also used a drilling machine with a numerically controlled drive to obtain high-resolution samples at 0.1 mm intervals, and used the 230Thex/232Th method to date the samples. For the uppermost 1.3 mm, the growth rate was about 2.15 mm/Ma, and the age for the layer at the depth of 3 mm was about 1.40 Ma, which coincides perfectly with the results obtained from orbital pacing. Thus, it is considered that orbital pacing is a new and effective method to determine the growth rate of the seamount Co-rich crust. This method is applicable for establishing a high-resolution age frame for the crusts of the world's oceans.

  7. Zygomycosis in Europe: analysis of 230 cases accrued by the registry of the European Confederation of Medical Mycology (ECMM) Working Group on Zygomycosis between 2005 and 2007.

    Science.gov (United States)

    Skiada, A; Pagano, L; Groll, A; Zimmerli, S; Dupont, B; Lagrou, K; Lass-Florl, C; Bouza, E; Klimko, N; Gaustad, P; Richardson, M; Hamal, P; Akova, M; Meis, J F; Rodriguez-Tudela, J-L; Roilides, E; Mitrousia-Ziouva, A; Petrikkos, G

    2011-12-01

    Zygomycosis is an important emerging fungal infection, associated with high morbidity and mortality. The Working Group on Zygomycosis of the European Confederation of Medical Mycology (ECMM) prospectively collected cases of proven and probable zygomycosis in 13 European countries occurring between 2005 and 2007. Cases were recorded by a standardized case report form, entered into an electronic database and analysed descriptively and by logistic regression analysis. During the study period, 230 cases fulfilled pre-set criteria for eligibility. The median age of the patients was 50 years (range, 1 month to 87 years); 60% were men. Underlying conditions included haematological malignancies (44%), trauma (15%), haematopoietic stem cell transplantation (9%) and diabetes mellitus (9%). The most common manifestations of zygomycosis were pulmonary (30%), rhinocerebral (27%), soft tissue (26%) and disseminated disease (15%). Diagnosis was made by both histology and culture in 108 cases (44%). Among 172 cases with cultures, Rhizopus spp. (34%), Mucor spp. (19%) and Lichtheimia (formerly Absidia) spp. (19%) were most commonly identified. Thirty-nine per cent of patients received amphotericin B formulations, 7% posaconazole and 21% received both agents; 15% of patients received no antifungal therapy. Total mortality in the entire cohort was 47%. On multivariate analysis, factors associated with survival were trauma as an underlying condition (p 0.019), treatment with amphotericin B (p 0.006) and surgery (p <0.001); factors associated with death were higher age (p 0.005) and the administration of caspofungin prior to diagnosis (p 0.011). In conclusion, zygomycosis remains a highly lethal disease. Administration of amphotericin B and surgery, where feasible, significantly improve survival.

  8. 17 CFR 230.800 - Definitions for §§ 230.800, 230.801 and 230.802.

    Science.gov (United States)

    2010-04-01

    ... quoted. (g) Rights offering. Rights offering means offers and sales for cash of equity securities where... as of a date no more than 60 days before or 30 days after the public announcement of a business... practicable date before public announcement, but in no event earlier than 120 days before public...

  9. A first-in-man study to evaluate the safety, tolerability, and pharmacokinetics of pasireotide (SOM230, a multireceptor-targeted somatostatin analog, in healthy volunteers

    Directory of Open Access Journals (Sweden)

    Golor G

    2012-04-01

    Full Text Available Georg Golor1, Ke Hu2, Matthieu Ruffin3, Alexandra Buchelt3, Emmanuel Bouillaud3, Yanfeng Wang2, Mario Maldonado31Parexel International GmbH, Berlin, Germany; 2Novartis Pharmaceuticals, East Hanover, NJ, USA; 3Novartis Pharma AG, Basel, SwitzerlandAbstract: Pasireotide (SOM230 is a multireceptor-targeted somatostatin analog with high binding affinity for four of the five somatostatin receptor subtypes (sst1,2,3 and sst5, and potential clinical activity in several neuroendocrine and oncologic conditions, including acromegaly, Cushing’s disease, and neuroendocrine tumors (NET. This manuscript reports the first-in-man dose-escalation study of pasireotide, evaluating its safety, tolerability, and pharmacokinetics (PK in healthy male volunteers. A single dose of pasireotide 1–1200 µg was administered subcutaneously in four to eight subjects per dose level, with two additional subjects per cohort administered placebo. PK and safety evaluations were carried out over 7 days post-dose. Growth hormone (GH suppression was evaluated using a GH-releasing hormone stimulation test on Day –1 and Day 1 at 3–5 hours post-injection. Seventy-two subjects completed the study. Pasireotide was well tolerated with no serious adverse events observed at any dose. Transient elevations in blood glucose levels were observed 2–6 hours after administration of pasireotide at doses between 200 µg and 1200 µg, but this resolved without intervention by 23 hours post-dosing. The maximum tolerable dose was not established within the tested range. Pasireotide demonstrated a favorable PK profile with fast absorption (tmax: 0.25–0.5 hours, low clearance (CL/F: 8–13 L/hour, long effective elimination half-life (mean t½,ß: 7–11 hours, and a proportional dose-exposure relationship. GH suppression of 79%–96% was observed at single pasireotide doses between 200 µg and 1200 µg. In conclusion, pasireotide demonstrated favorable safety, tolerability, and PK profiles

  10. Eruption and magma crystallization ages of Las Tres Vírgenes (Baja California) constrained by combined 230Th/ 238U and (U-Th)/He dating of zircon

    Science.gov (United States)

    Schmitt, Axel K.; Stockli, Daniel F.; Hausback, Brian P.

    2006-11-01

    Las Tres Vírgenes volcano is a calc-alkaline composite cone located near the main Gulf of California escarpment on the E coast of the Baja California peninsula. High-sensitivity ion microprobe U-series ( 230Th/ 238U) ages for zircon from La Vírgen tephra average 121 - 10 + 12 ka (1σ; MSWD = 2.7), with discrete age peaks at ˜ 100 and 160 ka. The noble gas mass spectrometric (U-Th)/He zircon age, corrected for disequilibrium and pre-eruptive storage, is 36 ± 3 ka. This result for the eruption age of La Vírgen tephra is significantly older than previously postulated historic or Holocene ages that were based on an 18th century map reference and 14C dating of accidental charcoal, respectively. The new (U-Th)/He zircon age is consistent with a > 26 ± 4 ka age derived from cosmogenic He exposure dating of an overlying basaltic lava flow [Hausback, B.P. and Abrams, M.J., 1996. Plinian eruption of La Virgen Tephra, Volcán Las Tres Virgenes, Baja California Sur, Mexico. Eos, Transactions, American Geophysical Union, 77(46, Suppl.): 813-814.]. U-Pb zircon analysis of ignimbrites erupted from the adjacent Early Pleistocene La Reforma and El Aguajito calderas yielded ages of 1.38 ± 0.03 Ma ( n = 12; MSWD = 1.0) and 1.17 ± 0.07 Ma ( n = 23; MSWD = 1.3), respectively. No evidence for these ages is found among La Vírgen zircons, whereas pre-Quaternary zircon xenocrysts are common. The La Vírgen magma, therefore, evolved unrelated to Early Pleistocene magmatism in adjacent calderas, but assimilated local basement rocks. A gap between average Th-U and (U-Th)/He zircon ages suggests that zircon crystallization was discontinuous in the La Vírgen magma chamber. In addition, partial resorption of zircon suggests episodic thermal rejuvenation, most likely by basaltic recharge. Based on the zircon record, the > 100 ka lifetime of the thermal anomaly that sustained repeated intrusive pulses significantly exceeds the age of the last eruption. This strengthens the view that Tres

  11. A microsatellite-based consensus linkage map for species of Eucalyptus and a novel set of 230 microsatellite markers for the genus

    Directory of Open Access Journals (Sweden)

    Williams Emlyn R

    2006-09-01

    Full Text Available Abstract Background Eucalypts are the most widely planted hardwood trees in the world occupying globally more than 18 million hectares as an important source of carbon neutral renewable energy and raw material for pulp, paper and solid wood. Quantitative Trait Loci (QTLs in Eucalyptus have been localized on pedigree-specific RAPD or AFLP maps seriously limiting the value of such QTL mapping efforts for molecular breeding. The availability of a genus-wide genetic map with transferable microsatellite markers has become a must for the effective advancement of genomic undertakings. This report describes the development of a novel set of 230 EMBRA microsatellites, the construction of the first comprehensive microsatellite-based consensus linkage map for Eucalyptus and the consolidation of existing linkage information for other microsatellites and candidate genes mapped in other species of the genus. Results The consensus map covers ~90% of the recombining genome of Eucalyptus, involves 234 mapped EMBRA loci on 11 linkage groups, an observed length of 1,568 cM and a mean distance between markers of 8.4 cM. A compilation of all microsatellite linkage information published in Eucalyptus allowed us to establish the homology among linkage groups between this consensus map and other maps published for E. globulus. Comparative mapping analyses also resulted in the linkage group assignment of other 41 microsatellites derived from other Eucalyptus species as well as candidate genes and QTLs for wood and flowering traits published in the literature. This report significantly increases the availability of microsatellite markers and mapping information for species of Eucalyptus and corroborates the high conservation of microsatellite flanking sequences and locus ordering between species of the genus. Conclusion This work represents an important step forward for Eucalyptus comparative genomics, opening stimulating perspectives for evolutionary studies and

  12. Corrective Action Investigation Plan for Corrective Action Unit 230: Area 22 Sewage Lagoons and Corrective Action Unit 320: Area 22 Desert Rock Air port Strainer Box, Nevada Test Site, Nevada

    Energy Technology Data Exchange (ETDEWEB)

    U.S. Department of Energy, Nevada Operations Office

    1999-06-10

    This Corrective Action Investigation Plan contains the US Department of Energy, Nevada Operation Office's approach to collect the data necessary to evaluate corrective action alternatives appropriate for the closure of Corrective Action Unit (CAU) 230/320 under the Federal Facility Agreement and Consent Order. Corrective Action Unit 230 consists of Corrective Action Site (CAS) 22-03-01, Sewage Lagoon; while CAU 320 consists of CAS 22-99-01, Strainer Box. These CAUs are referred to as CAU 230/320 or the Sewage Lagoons Site. The Sewage Lagoons Site also includes an Imhoff tank, sludge bed, and associated buried sewer piping. Located in Area 22, the site was used between 1951 to 1958 for disposal of sanitary sewage effluent from the historic Camp Desert Rock Facility at the Nevada Test Site in Nevada. Based on site history, the contaminants of potential concern include volatile organic compounds (VOCs), semivolatile organic compounds, total petroleum hydrocarbons (TPH), and radionuclides. Vertical migration is estimated to be less than 12 feet below ground surface, and lateral migration is limited to the soil immediately adjacent to or within areas of concern. The proposed investigation will involve a combination of field screening for VOCs and TPH using the direct-push method and excavation using a backhoe to gather soil samples for analysis. Gamma spectroscopy will also be conducted for waste management purposes. Sampling locations will be biased to suspected worst-case areas including the nearby sludge bed, sewage lagoon inlet(s) and outlet(s), disturbed soil surrounding the lagoons, surface drainage channel south of the lagoons, and the area near the Imhoff tank. The results of this field investigation will support a defensible evaluation of corrective action alternatives in the corrective action decision document.

  13. Corrective Action Investigation Plan for Corrective Action Unit 230: Area 22 Sewage Lagoons and Corrective Action Unit 320: Area 22 Desert Rock Airport Strainer Box, Nevada Test Site, Nevada

    Energy Technology Data Exchange (ETDEWEB)

    US DOE/Nevada Operations Office

    1999-06-10

    This Corrective Action Investigation Plan contains the U.S. Department of Energy, Nevada Operation Office's approach to collect the data necessary to evaluate corrective action alternatives appropriate for the closure of Corrective Action Unit (CAU) 230/320 under the Federal Facility Agreement and Consent Order. Corrective Action Unit 230 consists of Corrective Action Site (CAS) 22-03-01, Sewage Lagoon; while CAU 320 consists of CAS 22-99-01, Strainer Box. These CAUs are referred to as CAU 230/320 or the Sewage Lagoons Site. The Sewage Lagoons Site also includes an Imhoff tank, sludge bed, and associated buried sewer piping. Located in Area 22, the site was used between 1951 to 1958 for disposal of sanitary sewage effluent from the historic Camp Desert Rock Facility at the Nevada Test Site in Nevada. Based on site history, the contaminants of potential concern include volatile organic compounds (VOCs), semivolatile organic compounds, total petroleum hydrocarbons (TPH), and radionuclides. Vertical migration is estimated to be less than 12 feet below ground surface, and lateral migration is limited to the soil immediately adjacent to or within areas of concern. The proposed investigation will involve a combination of field screening for VOCs and TPH using the direct-push method and excavation using a backhoe to gather soil samples for analysis. Gamma spectroscopy will also be conducted for waste management purposes. Sampling locations will be biased to suspected worst-case areas including the nearby sludge bed, sewage lagoon inlet(s) and outlet(s), disturbed soil surrounding the lagoons, surface drainage channel south of the lagoons, and the area near the Imhoff tank. The results of this field investigation will support a defensible evaluation of corrective action alternatives in the corrective action decision document.

  14. 2230例变应性疾病患者血清特异性抗体测定分析%Analysis of serum specific IgE in 2 230 patients with allergic diseases

    Institute of Scientific and Technical Information of China (English)

    赵鸿芬; 李小霞; 赵京莉

    2011-01-01

    Objective To detect serum specific IgE in allergic diseases for clinical diagnosis and therapy. Methods The serum specific IgE and total IgE ( slgE) were detected by enzyme immunoassay in 2 230 patients. Results The dermatophagoides farinae (28.3% ) and pteronyssinus( 26. 6% ) were the most common allergen in 2 230 patients, followed by Artemisia(14. 9% ) , cat hair dander(9% ) , beef and mutton(9% ), cockroaches(8.3% ) , seafood(8. 1% ), fungi(6.6% ) , milk(6. 1% ), short ragweed(5.6% ), peanuts, cashew nuts(4.6% ), elm, sycamore, willow, cottonwood(3. 8% ) , egg white(3. 8% ) , soybeans(3. 1% ). The positive rate of total IgE was 46. 9%. Conclusion The detection of serum specific IgE and total IgE can help to find the corresponding clinical allergy, and provide evidences for prevention, diagnosis and therapy of allergic diseases.%目的 检测变应性疾病血清特异性抗体筛选相关过敏原,为临床诊断和治疗提供依据.方法 采用过敏原检测系统,对2 230例变应性疾病患者的血清特异性免疫球蛋白E( immunoglobtlin,IgE)及总IgE水平进行了检测.结果 2 230例变应性疾病患者中过敏原以屋尘螨(28.3%)、粉尘螨(26.6%)为最高,其后依次为蒿(14.9%)、猫毛皮屑(9%)、牛羊肉(9%)、蟑螂(8.3%)、鱼虾蟹(8.1%)、霉菌(6.6%)、牛奶(6.1%)、矮豚草(5.6%)、腰果花生(4.6%)、榆、梧桐、柳、三角叶杨(3.8%)、鸡蛋白(3.8%)、黄豆(3.1%);总IgE阳性率为46.9%.结论 血清特异性IgE及总IgE的检测分析可以帮助临床寻找相应过敏原,为变应性疾病的预防、诊断和治疗提供依据.

  15. Draft Supplement to the Environmental Statement Fiscal Year 1976 Proposed Program : Facilty Location Evaluation for Franklin-Badger Canyon 230-kV Line and Badger Canyon Substation Study Area 74-6B.

    Energy Technology Data Exchange (ETDEWEB)

    United States. Bonneville Power Administration.

    1974-10-22

    Proposed is the construction of a 15-mile, 230-kV double-circuit transmission line from Franklin Substation near Pasco, Washington, to a proposed new Badger Canyon Substation to be constructed 5 miles west of Kennewick, Washington. Depending on the final route location chosen, approximately 15 miles of 230-kV double circuit transmission line requiring 5.6 miles of new and 9.4 miles of existing right-of-way would be needed as well as approximately 2500 feet of new access road. Land use affected includes crossing Sacajawea State Park and passig through irrigated cropland and grassland on existing right-of-way, and depending on the alternative route chosen, could cross land proposed for residential development and a proposed interstate highway. An additional 10 to 11 acres of potential cropland would be required for the proposed substation. Disturbance to wildlife during construction would occur and habitat associated with the above land uses would be eliminated. Some erosion and sedimentation would occur. Visual impacts would affect Sacajawea State Park, a proposed highway, and potential residential development land. Noise and other disturbances to residents will occur, primarily during construction.

  16. The Implementation of Color Sensor TCS320 in MCU Platform%颜色传感器TCS230在单片机平台上的应用实现

    Institute of Scientific and Technical Information of China (English)

    孔宪青

    2012-01-01

    TCS230 is a RGB color light / frequency converter. Through the filter selected test function, this article by means of single chip designs the steps and method for the measurement of three primary colors, and elaborates the specific algorithm with AT89S52 as the core, which can measure the color. It also gives the corresponding the hardware design circuit, software flow chart and the testing program list. Finally, the realization of HSC model algorithm procedures, with the general line, can be widely used in color measurement and related data processing.%TCS230是RGB彩色光/频率转换器。本文通过其滤光选择功能,借助单片机设计出对于三基色测量的步骤和方法,阐述了以AT89S52为核心的,能测量出颜色的具体算法,且进一步给出了相应的硬件设计电路、软件流程图和测试程序清单。最后给出的实现HSC模型算法的程序,具有通用性、能广泛应用于颜色测量和相关的三维数据的处理。

  17. Temperature dependence of the photodissociation of CO2 from high vibrational levels: 205-230 nm imaging studies of CO(X1Σ+) and O(3P, 1D) products

    Science.gov (United States)

    Sutradhar, S.; Samanta, B. R.; Samanta, A. K.; Reisler, H.

    2017-07-01

    The 205-230 nm photodissociation of vibrationally excited CO2 at temperatures up to 1800 K was studied using Resonance Enhanced Multiphoton Ionization (REMPI) and time-sliced Velocity Map Imaging (VMI). CO2 molecules seeded in He were heated in an SiC tube attached to a pulsed valve and supersonically expanded to create a molecular beam of rotationally cooled but vibrationally hot CO2. Photodissociation was observed from vibrationally excited CO2 with internal energies up to about 20 000 cm-1, and CO(X1Σ+), O(3P), and O(1D) products were detected by REMPI. The large enhancement in the absorption cross section with increasing CO2 vibrational excitation made this investigation feasible. The internal energies of heated CO2 molecules that absorbed 230 nm radiation were estimated from the kinetic energy release (KER) distributions of CO(X1Σ+) products in v″ = 0. At 230 nm, CO2 needs to have at least 4000 cm-1 of rovibrational energy to absorb the UV radiation and produce CO(X1Σ+) + O(3P). CO2 internal energies in excess of 16 000 cm-1 were confirmed by observing O(1D) products. It is likely that initial absorption from levels with high bending excitation accesses both the A1B2 and B1A2 states, explaining the nearly isotropic angular distributions of the products. CO(X1Σ+) product internal energies were estimated from REMPI spectroscopy, and the KER distributions of the CO(X1Σ+), O(3P), and O(1D) products were obtained by VMI. The CO product internal energy distributions change with increasing CO2 temperature, suggesting that more than one dynamical pathway is involved when the internal energy of CO2 (and the corresponding available energy) increases. The KER distributions of O(1D) and O(3P) show broad internal energy distributions in the CO(X1Σ+) cofragment, extending up to the maximum allowed by energy but peaking at low KER values. Although not all the observations can be explained at this time, with the aid of available theoretical studies of CO2 VUV

  18. 230例极低出生体质量儿随访至纠正6月龄生存质量分析%Analysis of the quality of life of 230 very low birth weight infants followed up to 6 months of corrected age

    Institute of Scientific and Technical Information of China (English)

    蒋青莲; 包蕾

    2016-01-01

    目的:分析极低出生体质量(VLBW)婴儿的短期预后。方法回顾性分析2013年12月至2014年12月收治的VLBW婴儿随访至纠正6月龄的生存质量。结果共入选230例符合标准的VLBW婴儿,出院时死亡30例(13.0%),放弃治疗40例(17.4%),好转签字出院60例(26.1%),治愈100例(43.5%)。30例死亡VLBW婴儿中,主要为新生儿呼吸窘迫综合征18例、肺出血5例、败血症3例。200例存活婴儿随访至纠正6月龄时,13例(6.5%)失访;54例(27.0%)死亡,其中40例是因经济原因放弃治疗或好转签字出院的。纠正1、3、6月龄时,继续随访的VLBW婴儿身长、体质量均随月龄增长逐渐接近儿童生长标准,但至纠正6月龄时仍明显落后于儿童生长标准;身长落后较体质量落后更明显。109例患儿行眼底筛查,其中早产儿视网膜病变Ⅰ期21例、Ⅱ期7例,眼底出血行激光光凝术6例;98例患儿行听力筛查,单侧未通过5例,双侧未通过11例;95例患儿行头颅磁共振成像(MRI)检查,颅内出血10例,早产儿脑损伤9例。49例患儿纠正胎龄42周行新生儿神经行为测定(NBNA)均≤35分;纠正3月龄时,36例患儿行Gesell发育量表评估,轻度发育迟缓11例、中度2例;纠正6月龄时,24例行Gesell发育量表评估,轻度发育迟缓2例。VLBW婴儿在适应能力、社交行为、大运动方面进步较快。结论经济条件及新生儿呼吸窘迫综合征、肺出血、败血症是影响VLBW婴儿存活及生存质量的重要因素;存活VLBW婴儿的生长发育均有逐渐好转现象。%Objective To analyze the short term prognosis of very low birth weight (VLBW) infants. Methods The clinical data of VLBW infants who were hospitalized from December 2013 to December 2014 and followed up to 6 months of corrected age were retrospectively analyzed. Results A total of 230 VLBW infants were enrolled. Thirty infants (13.0%) died during hospitalization

  19. Comments on "Including the effects of temperature-dependent opacities in the implicit Monte Carlo algorithm" by N.A. Gentile [J. Comput. Phys. 230 (2011) 5100-5114

    Science.gov (United States)

    Ghosh, Karabi

    2017-02-01

    We briefly comment on a paper by N.A. Gentile [J. Comput. Phys. 230 (2011) 5100-5114] in which the Fleck factor has been modified to include the effects of temperature-dependent opacities in the implicit Monte Carlo algorithm developed by Fleck and Cummings [1,2]. Instead of the Fleck factor, f = 1 / (1 + βcΔtσP), the author derived the modified Fleck factor g = 1 / (1 + βcΔtσP - min [σP‧ (a Tr4 - aT4) cΔt/ρCV, 0 ]) to be used in the Implicit Monte Carlo (IMC) algorithm in order to obtain more accurate solutions with much larger time steps. Here β = 4 aT3 / ρCV, σP is the Planck opacity and the derivative of Planck opacity w.r.t. the material temperature is σP‧ = dσP / dT.

  20. Proposal to amend existing operating permit for the Ault-Craig 345-kV and Hayden-Archer 230-kV transmission lines, Routt, Jackson and Larimer Counties, Colorado

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1997-08-01

    The Western Area Power Administration, Rocky Mountain Region, is proposing to amend an existing US Forest Service operating permit for the Ault-Craig 345-kV and Hayden-Archer 230-kV transmission lines, which are located in Routt, jackson, and Larimer counties, Colorado. These transmission lines cross portions of the Roosevelt and Routt National Forests. The long-term use authorization Western is requesting from the Forest Service would be for the life of the Ault-Craig and Hayden-Archer transmission lines. This environmental assessment addresses those access road and right-of-way maintenance activities identified by Western that would be performed on Forest Service managed lands during the next approximately five years.

  1. Britain's delegation to CERN, the European Centre for Nuclear Research near Geneva, voted in favour of a project which take seven years to build, involve a 27 kilometre long tunnel, and cost 230 million pounds. Now LEP receives the go-ahead later this month

    CERN Multimedia

    Llewellyn Smith, Christopher Hubert

    1981-01-01

    Britain's delegation to CERN, the European Centre for Nuclear Research near Geneva, voted in favour of a project which take seven years to build, involve a 27 kilometre long tunnel, and cost 230 million pounds. Now LEP receives the go-ahead later this month

  2. Book Review: A THIRD WAVE: ABOUT THE POLITICS OF PROCLAIMING A `NEW' FEMINISM Stacy Gillis, Gillian Howie and Rebecca Munford, eds Third Wave Feminism: A Critical Exploration, expanded 2nd edn Basingstoke and New York: Palgrave Macmillan, 2007, 310 pp., ISBN-13 978-0-230-52174-2

    OpenAIRE

    2008-01-01

    Book Review: A THIRD WAVE: ABOUT THE POLITICS OF PROCLAIMING A `NEW' FEMINISM Stacy Gillis, Gillian Howie and Rebecca Munford, eds Third Wave Feminism: A Critical Exploration, expanded 2nd edn Basingstoke and New York: Palgrave Macmillan, 2007, 310 pp., ISBN-13 978-0-230-52174-2 London School of Economics - (Scharff, Christina)

  3. 添加WS2/(Ni-P)包覆的激光制备高温自润滑耐磨复合涂层%High temperature self-lubricating wear-resistant NiCr-Cr3 C2/30 % WS2 (Ni-P)composite coating fabricated by laser cladding

    Institute of Scientific and Technical Information of China (English)

    郑晨; 刘秀波; 杨茂盛; 王明娣; 石世宏; 傅戈雁; 齐龙浩

    2013-01-01

    为抑制WS2在激光熔覆过程中的分解,增加其与金属基体的相容性,采用化学镀的方法,在WS2粉末颗粒表面包覆一层微米级Ni-P合金,对比研究了添加包覆粉末和未包覆粉末所制备的高温自润滑耐磨复合涂层的微观组织和室温、300℃和600℃下的摩擦学性能.NiCr-Cr3C2/30% WS2(Ni-P)涂层组织主要为初生树枝状Cr7C3、共晶γ-(Fe,Ni)/Cr7C3和CrS,以及少量弥散分布的WS2;对涂层进行摩擦学实验表明,添加包覆粉末所制备的涂层摩擦学性能更佳,室温和300℃时,NiCr-Cr3C2/30%WS2(Ni-P)涂层有较低的摩擦系数,且室温、300℃和600℃时,NiCr-Cr3C2/30% WS2(Ni-P)涂层磨损率都低于NiCr-Cr3C2/30%WS2涂层.%In order to decrease WS2 decomposition and increase its compatibility with the metal matrix during the process of laser cladding,the WS2 powder was encapsulated with a micron-Ni-P layer by electroless plating.The microstructure and tribological properties of the NiCr-Cr3C2/30% WS2 and NiCr-Cr3C2/30% WS2 (Ni-P) high temperature self-lubricating wear-resistant composite coatings at RT(room temperature),300 ℃ and 600 ℃ were investigated,respectively.The results show that the NiCr-Cr3 C2/30% WS2 (Ni-P) coating consists of primary Cr7 C3 dendrite,γ-(Fe,Ni)/Cr7 C3 eutectic and CrS,Ni-P electroless plating decreases the decomposition of WS2 to some extent,the WS2 solid lubrication particles are uniformly dispersed in the ductile γ,-(Fe,Ni) /Cr7 C3 matrix.Friction and wear experiments indicate that the tribological properties of the NiCr-Cr3 C2/30% WS2 (Ni-P) coating is better than that of the NiCr-Cr3 C2/30% WS2 coating,the NiCr-Cr3C2/30% WS2 (Ni-P) coating presents lower friction coefficient at RT and 300 ℃ and lower wear rate from RT to the elevated temperature of 600 ℃.

  4. Purification of radium-226 for the manufacturing of actinium-225 in a cyclotron for alpha-immunotherapy; Radium-Aufreinigung zur Herstellung von Actinium-225 am Zyklotron fuer die Alpha-Immuntherapie

    Energy Technology Data Exchange (ETDEWEB)

    Marx, Sebastian Markus

    2014-09-23

    The thesis describes the development of methods for the purification of Ra-226. The objective was to obtain the radionuclide in the quality that is needed to be used as starting material in the manufacturing process for Ac-225 via proton-irradiated Ra-226. The radionuclide has been gained efficiently out of huge excesses of impurities. The high purity of the obtained radium affords its use as staring material in a pharmaceutical manufacturing process.

  5. Production of actinium, thorium and radium isotopes from natural thorium irradiated with protons up to 141 MeV

    Energy Technology Data Exchange (ETDEWEB)

    Ermolaev, S.V.; Zhuikov, B.L.; Kokhanyuk, V.M.; Matushko, V.L. [Russian Academy of Sciences, Moscow (Russian Federation). Inst. of Nuclear Research; Kalmykov, S.N. [Lomonosov Moscow State Univ., Moscow (Russian Federation). Chemistry Dept.; Aliev, R.A. [Lomonosov Moscow State Univ., Moscow (Russian Federation). Skobeltsyn Inst. of Nuclear Physics; Tananaev, I.G.; Myasoedov, B.F. [Russian Academy of Sciences, Moscow (Russian Federation). A.N. Frumkin Inst. of Physical Chemistry and Electrochemistry

    2012-07-01

    Cross sections of {sup 225}Ac, {sup 227}Ac, {sup 227}Th and {sup 228}Th in thorium-232 targets irradiated with protons in the energy range 21-141 MeV have been measured. Based on these data, production yields of {sup 225}Ac and {sup 223}Ra in thick thorium targets have been calculated. It is possible to produce in proton energy range 60-140 MeV about 96 GBq (2.6 Ci) {sup 225}Ac per 10-d irradiation with 100 {mu}A proton beam current and 10-d decay, and much higher amount of {sup 223}Ra. The impurities of {sup 227}Ac and {sup 224}Ra are important and need to be assessed for further medical applications. (orig.)

  6. Renal uptake of bismuth-213 and its contribution to kidney radiation dose following administration of actinium-225-labeled antibody

    Energy Technology Data Exchange (ETDEWEB)

    Schwartz, J; O' Donoghue, J A; Humm, J L [Department of Medical Physics, Memorial Sloan-Kettering Cancer Center, 1275 York Avenue, New York, NY 10065 (United States); Jaggi, J S [Bristol-Myers Squibb, Plainsboro, NJ (United States); Ruan, S; Larson, S M [Nuclear Medicine Service Department of Radiology, Memorial Sloan-Kettering Cancer Center, 1275 York Avenue, New York, NY 10065 (United States); McDevitt, M; Scheinberg, D A, E-mail: schwarj1@mskcc.org [Molecular Pharmacology and Chemistry, Sloan-Kettering Institute, 1275 York Avenue, New York, NY 10065 (United States)

    2011-02-07

    Clinical therapeutic studies using {sup 225}Ac-labeled antibodies have begun. Of major concern is renal toxicity that may result from the three alpha-emitting progeny generated following the decay of {sup 225}Ac. The purpose of this study was to determine the amount of {sup 225}Ac and non-equilibrium progeny in the mouse kidney after the injection of {sup 225}Ac-huM195 antibody and examine the dosimetric consequences. Groups of mice were sacrificed at 24, 96 and 144 h after injection with {sup 225}Ac-huM195 antibody and kidneys excised. One kidney was used for gamma ray spectroscopic measurements by a high-purity germanium (HPGe) detector. The second kidney was used to generate frozen tissue sections which were examined by digital autoradiography (DAR). Two measurements were performed on each kidney specimen: (1) immediately post-resection and (2) after sufficient time for any non-equilibrium excess {sup 213}Bi to decay completely. Comparison of these measurements enabled estimation of the amount of excess {sup 213}Bi reaching the kidney ({gamma}-ray spectroscopy) and its sub-regional distribution (DAR). The average absorbed dose to whole kidney, determined by spectroscopy, was 0.77 (SD 0.21) Gy kBq{sup -1}, of which 0.46 (SD 0.16) Gy kBq{sup -1} (i.e. 60%) was due to non-equilibrium excess {sup 213}Bi. The relative contributions to renal cortex and medulla were determined by DAR. The estimated dose to the cortex from non-equilibrium excess {sup 213}Bi (0.31 (SD 0.11) Gy kBq{sup -1}) represented {approx}46% of the total. For the medulla the dose contribution from excess {sup 213}Bi (0.81 (SD 0.28) Gy kBq{sup -1}) was {approx}80% of the total. Based on these estimates, for human patients we project a kidney-absorbed dose of 0.28 Gy MBq{sup -1} following administration of {sup 225}Ac-huM195 with non-equilibrium excess {sup 213}Bi responsible for approximately 60% of the total. Methods to reduce renal accumulation of radioactive progeny appear to be necessary for the success of {sup 225}Ac radioimmunotherapy.

  7. Austenitic Nickel- and Manganese-Free Fe-15Cr-1Mo-0.4N-0.3C Steel: Tensile Behavior and Deformation-Induced Processes between 298 K and 503 K (25 °C and 230 °C)

    Science.gov (United States)

    Mola, Javad; Ullrich, Christiane; Kuang, Buxiao; Rahimi, Reza; Huang, Qiuliang; Rafaja, David; Ritzenhoff, Roman

    2017-03-01

    The high-temperature austenite phase of a high-interstitial Mn- and Ni-free stainless steel was stabilized at room temperature by the full dissolution of precipitates after solution annealing at 1523 K (1250 °C). The austenitic steel was subsequently tensile-tested in the temperature range of 298 K to 503 K (25 °C to 230 °C). Tensile elongation progressively enhanced at higher tensile test temperatures and reached 79 pct at 503 K (230 °C). The enhancement at higher temperatures of tensile ductility was attributed to the increased mechanical stability of austenite and the delayed formation of deformation-induced martensite. Microstructural examinations after tensile deformation at 433 K (160 °C) and 503 K (230 °C) revealed the presence of a high density of planar glide features, most noticeably deformation twins. Furthermore, the deformation twin to deformation-induced martensite transformation was observed at these temperatures. The results confirm that the high tensile ductility of conventional Fe -Cr-Ni and Fe-Cr-Ni-Mn austenitic stainless steels may be similarly reproduced in Ni- and Mn-free high-interstitial stainless steels solution annealed at sufficiently high temperatures. The tensile ductility of the alloy was found to deteriorate with decarburization and denitriding processes during heat treatment which contributed to the formation of martensite in an outermost rim of tensile specimens.

  8. Austenitic Nickel- and Manganese-Free Fe-15Cr-1Mo-0.4N-0.3C Steel: Tensile Behavior and Deformation-Induced Processes between 298 K and 503 K (25 °C and 230 °C)

    Science.gov (United States)

    Mola, Javad; Ullrich, Christiane; Kuang, Buxiao; Rahimi, Reza; Huang, Qiuliang; Rafaja, David; Ritzenhoff, Roman

    2017-01-01

    The high-temperature austenite phase of a high-interstitial Mn- and Ni-free stainless steel was stabilized at room temperature by the full dissolution of precipitates after solution annealing at 1523 K (1250 °C). The austenitic steel was subsequently tensile-tested in the temperature range of 298 K to 503 K (25 °C to 230 °C). Tensile elongation progressively enhanced at higher tensile test temperatures and reached 79 pct at 503 K (230 °C). The enhancement at higher temperatures of tensile ductility was attributed to the increased mechanical stability of austenite and the delayed formation of deformation-induced martensite. Microstructural examinations after tensile deformation at 433 K (160 °C) and 503 K (230 °C) revealed the presence of a high density of planar glide features, most noticeably deformation twins. Furthermore, the deformation twin to deformation-induced martensite transformation was observed at these temperatures. The results confirm that the high tensile ductility of conventional Fe-Cr-Ni and Fe-Cr-Ni-Mn austenitic stainless steels may be similarly reproduced in Ni- and Mn-free high-interstitial stainless steels solution annealed at sufficiently high temperatures. The tensile ductility of the alloy was found to deteriorate with decarburization and denitriding processes during heat treatment which contributed to the formation of martensite in an outermost rim of tensile specimens.

  9. Magma mixing and the generation of isotopically juvenile silicic magma at Yellowstone caldera inferred from coupling 238U–230Th ages with trace elements and Hf and O isotopes in zircon and Pb isotopes in sanidine

    Science.gov (United States)

    Stelten, Mark E.; Cooper, Kari M.; Vazquez, Jorge A.; Reid, Mary R.; Barfod, Gry H.; Wimpenny, Josh; Yin, Qing-Zhu

    2013-01-01

    The nature of compositional heterogeneity within large silicic magma bodies has important implications for how silicic reservoirs are assembled and evolve through time. We examine compositional heterogeneity in the youngest (~170 to 70 ka) post-caldera volcanism at Yellowstone caldera, the Central Plateau Member (CPM) rhyolites, as a case study. We compare 238U–230Th age, trace-element, and Hf isotopic data from zircons, and major-element, Ba, and Pb isotopic data from sanidines hosted in two CPM rhyolites (Hayden Valley and Solfatara Plateau flows) and one extracaldera rhyolite (Gibbon River flow), all of which erupted near the caldera margin ca. 100 ka. The Hayden Valley flow hosts two zircon populations and one sanidine population that are consistent with residence in the CPM reservoir. The Gibbon River flow hosts one zircon population that is compositionally distinct from Hayden Valley flow zircons. The Solfatara Plateau flow contains multiple sanidine populations and all three zircon populations found in the Hayden Valley and Gibbon River flows, demonstrating that the Solfatara Plateau flow formed by mixing extracaldera magma with the margin of the CPM reservoir. This process highlights the dynamic nature of magmatic interactions at the margins of large silicic reservoirs. More generally, Hf isotopic data from the CPM zircons provide the first direct evidence for isotopically juvenile magmas contributing mass to the youngest post-caldera magmatic system and demonstrate that the sources contributing magma to the CPM reservoir were heterogeneous in 176Hf/177Hf at ca. 100 ka. Thus, the limited compositional variability of CPM glasses reflects homogenization occurring within the CPM reservoir, not a homogeneous source.

  10. Cogenetic late Pleistocene rhyolite and cumulate diorites from Augustine Volcano revealed by SIMS 238U-230Th dating of zircon, and implications for silicic magma generation by extraction from mush

    Science.gov (United States)

    Coombs, Michelle L.; Vazquez, Jorge A.

    2014-12-01

    Volcano, a frequently active andesitic island stratocone, erupted a late Pleistocene rhyolite pumice fall that is temporally linked through zircon geochronology to cumulate dioritic blocks brought to the surface in Augustine's 2006 eruption. Zircon from the rhyolite yield a 238U-230Th age of ˜25 ka for their unpolished rims, and their interiors yield a bimodal age populations at ˜26 ka and a minority at ˜41 ka. Zircon from dioritic blocks, ripped from Augustine's shallow magmatic plumbing system and ejected during the 2006 eruption, have interiors defining a ˜26 ka age population that is indistinguishable from that for the rhyolite; unpolished rims on the dioritic zircon are dominantly younger (≤12 ka) indicating subsequent crystallization. Zircon from rhyolite and diorite overlap in U, Hf, Ti, and REE concentrations although diorites also contain a second population of high-U, high temperature grains. Andesites that brought dioritic blocks to the surface in 2006 contain zircon with young (≤9 ka) rims and a scattering of older ages, but few zircon that crystallized during the 26 ka interval. Both the Pleistocene-age rhyolite and the 2006 dioritic inclusions plot along a whole-rock compositional trend distinct from mid-Holocene-present andesites and dacites, and the diorites, rhyolite, and two early Holocene dacites define linear unmixing trends often oblique to the main andesite array and consistent with melt (rhyolite) extraction from a mush (dacites), leaving behind a cumulate amphibole-bearing residue (diorites). Rare zircon antecrysts up to ˜300 ka from all rock types indicate that a Quaternary center has been present longer than preserved surficial deposits.

  11. Simulation study for measurement of horizontal wind profiles in the polar stratosphere and mesosphere using ground-based observations of ozone and carbon monoxide lines in the 230-250 GHz region

    Science.gov (United States)

    Newnham, David A.; Ford, George P.; Moffat-Griffin, Tracy; Pumphrey, Hugh C.

    2016-07-01

    Meteorological and atmospheric models are being extended up to 80 km altitude but there are very few observing techniques that can measure stratospheric-mesospheric winds at altitudes between 20 and 80 km to verify model datasets. Here we demonstrate the feasibility of horizontal wind profile measurements using ground-based passive millimetre-wave spectroradiometric observations of ozone lines centred at 231.28, 249.79, and 249.96 GHz. Vertical profiles of horizontal winds are retrieved from forward and inverse modelling simulations of the line-of-sight Doppler-shifted atmospheric emission lines above Halley station (75°37' S, 26°14' W), Antarctica. For a radiometer with a system temperature of 1400 K and 30 kHz spectral resolution observing the ozone 231.28 GHz line we estimate that 12 h zonal and meridional wind profiles could be determined over the altitude range 25-74 km in winter, and 28-66 km in summer. Height-dependent measurement uncertainties are in the range 3-8 m s-1 and vertical resolution ˜ 8-16 km. Under optimum observing conditions at Halley a temporal resolution of 1.5 h for measuring either zonal or meridional winds is possible, reducing to 0.5 h for a radiometer with a 700 K system temperature. Combining observations of the 231.28 GHz ozone line and the 230.54 GHz carbon monoxide line gives additional altitude coverage at 85 ± 12 km. The effects of clear-sky seasonal mean winter/summer conditions, zenith angle of the received atmospheric emission, and spectrometer frequency resolution on the altitude coverage, measurement uncertainty, and height and time resolution of the retrieved wind profiles have been determined.

  12. 23 CFR 230.305 - Definitions.

    Science.gov (United States)

    2010-04-01

    ... in the plan areas established by the Secretary of Labor and FHWA special provisions in nonplan areas... of the original peoples of Europe, North Africa, the Middle East, or the Indian Subcontinent. (2) The...) The category Hispanic: All persons of Mexican, Puerto Rican, Cuban, Central or South American, or...

  13. 49 CFR 230.110 - Pilots.

    Science.gov (United States)

    2010-10-01

    ... TRANSPORTATION STEAM LOCOMOTIVE INSPECTION AND MAINTENANCE STANDARDS Steam Locomotives and Tenders Trucks, Frames..., properly braced, and maintained in a safe and suitable condition for service. (b) Minimum and...

  14. 40 CFR 1042.230 - Engine families.

    Science.gov (United States)

    2010-07-01

    ... piston rings on the piston. (11) The intake manifold induction port size and configuration. (12) The exhaust manifold port size and configuration. (13) The location of the intake and exhaust valves (or ports... bore and stroke. (7) Cylinder arrangement (such as in-line vs. vee configurations). This applies for...

  15. 20 CFR 725.230 - Legal impediment.

    Science.gov (United States)

    2010-04-01

    ... SAFETY ACT OF 1969, AS AMENDED CLAIMS FOR BENEFITS UNDER PART C OF TITLE IV OF THE FEDERAL MINE SAFETY... example, the solemnization of a marriage only through a religious ceremony in a country which requires...

  16. 42 CFR 455.230 - Eligibility requirements.

    Science.gov (United States)

    2010-10-01

    ... Eligibility requirements. CMS may enter into a contract with an entity to perform the activities described at... in relation to Title XIX of the Social Security Act and in other cases arising out of such...

  17. 36 CFR 230.7 - Program practices.

    Science.gov (United States)

    2010-07-01

    ... regeneration, planting, or direct seeding for conservation purposes and sustainable timber production. (3... productivity, vigor, and health, and the value and quality of wood products. (4) Windbreak and...

  18. 40 CFR 230.53 - Aesthetics.

    Science.gov (United States)

    2010-07-01

    ... perception of beauty by one or a combination of the senses of sight, hearing, touch, and smell. Aesthetics of...) Possible loss of values: The discharge of dredged or fill material can mar the beauty of natural...

  19. 12 CFR 230.4 - Account disclosures.

    Science.gov (United States)

    2010-01-01

    .... Any limitations on the number or dollar amount of withdrawals or deposits. (6) Features of time accounts. For time accounts: (i) Time requirements. The maturity date. (ii) Early withdrawal penalties. A statement that a penalty will or may be imposed for early withdrawal, how it is calculated, and...

  20. 12 CFR 230.2 - Definitions.

    Science.gov (United States)

    2010-01-01

    ... consumer. It includes time, demand, savings, and negotiable order of withdrawal accounts. For purposes of... have a right to make withdrawals for six days after the account is opened, unless the deposit is subject to an early withdrawal penalty of at least seven days' interest on amounts withdrawn. (v)...

  1. 21 CFR 1271.230 - Process validation.

    Science.gov (United States)

    2010-04-01

    ...) approving the validation. (b) Written representation. Any written representation that your processing methods reduce the risk of transmission of communicable disease by an HCT/P, including but not limited to, a representation of sterility or pathogen inactivation of an HCT/P, must be based on a...

  2. 45 CFR 2555.230 - Transition plans.

    Science.gov (United States)

    2010-10-01

    ... NONDISCRIMINATION ON THE BASIS OF SEX IN EDUCATION PROGRAMS OR ACTIVITIES RECEIVING FEDERAL FINANCIAL ASSISTANCE... and that is composed of more than one administratively separate unit may submit either a single...) Content of plans. In order to be approved by the Secretary of Education, a transition plan shall:...

  3. 24 CFR 3.230 - Transition plans.

    Science.gov (United States)

    2010-04-01

    ... NONDISCRIMINATION ON THE BASIS OF SEX IN EDUCATION PROGRAMS OR ACTIVITIES RECEIVING FEDERAL FINANCIAL ASSISTANCE... that is composed of more than one administratively separate unit may submit either a single transition...) Content of plans. In order to be approved by the Secretary of Education, a transition plan shall:...

  4. 38 CFR 23.230 - Transition plans.

    Science.gov (United States)

    2010-07-01

    ...) NONDISCRIMINATION ON THE BASIS OF SEX IN EDUCATION PROGRAMS OR ACTIVITIES RECEIVING FEDERAL FINANCIAL ASSISTANCE... that is composed of more than one administratively separate unit may submit either a single transition...) Content of plans. In order to be approved by the Secretary of Education, a transition plan shall:...

  5. 44 CFR 19.230 - Transition plans.

    Science.gov (United States)

    2010-10-01

    ... HOMELAND SECURITY GENERAL NONDISCRIMINATION ON THE BASIS OF SEX IN EDUCATION PROGRAMS OR ACTIVITIES... submit either a single transition plan applicable to all such units, or a separate transition plan applicable to each such unit. (b) Content of plans. In order to be approved by the Secretary of Education,...

  6. 49 CFR 25.230 - Transition plans.

    Science.gov (United States)

    2010-10-01

    ... Transportation Office of the Secretary of Transportation NONDISCRIMINATION ON THE BASIS OF SEX IN EDUCATION... administratively separate unit may submit either a single transition plan applicable to all such units, or a... Secretary of Education, a transition plan shall: (1) State the name, address, and Federal...

  7. 13 CFR 113.230 - Transition plans.

    Science.gov (United States)

    2010-01-01

    ... Nondiscrimination on the Basis of Sex in Education Programs or Activities Receiving Federal Financial Assistance... that is composed of more than one administratively separate unit may submit either a single transition...) Content of plans. In order to be approved by the Secretary of Education, a transition plan shall:...

  8. 36 CFR 1211.230 - Transition plans.

    Science.gov (United States)

    2010-07-01

    ... RULES NONDISCRIMINATION ON THE BASIS OF SEX IN EDUCATION PROGRAMS OR ACTIVITIES RECEIVING FEDERAL... a single transition plan applicable to all such units, or a separate transition plan applicable to each such unit. (b) Content of plans. In order to be approved by the Secretary of Education,...

  9. 32 CFR 196.230 - Transition plans.

    Science.gov (United States)

    2010-07-01

    ...) MISCELLANEOUS NONDISCRIMINATION ON THE BASIS OF SEX IN EDUCATION PROGRAMS OR ACTIVITIES RECEIVING FEDERAL... a single transition plan applicable to all such units, or a separate transition plan applicable to each such unit. (b) Content of plans. In order to be approved by the Secretary of Education,...

  10. 22 CFR 146.230 - Transition plans.

    Science.gov (United States)

    2010-04-01

    ... Foreign Relations DEPARTMENT OF STATE CIVIL RIGHTS NONDISCRIMINATION ON THE BASIS OF SEX IN EDUCATION... administratively separate unit may submit either a single transition plan applicable to all such units, or a... Secretary of Education, a transition plan shall: (1) State the name, address, and Federal...

  11. 10 CFR 1042.230 - Transition plans.

    Science.gov (United States)

    2010-01-01

    ... DEPARTMENT OF ENERGY (GENERAL PROVISIONS) NONDISCRIMINATION ON THE BASIS OF SEX IN EDUCATION PROGRAMS OR... separate unit may submit either a single transition plan applicable to all such units, or a separate... of Education, a transition plan shall: (1) State the name, address, and Federal Interagency...

  12. 29 CFR 36.230 - Transition plans.

    Science.gov (United States)

    2010-07-01

    ... Secretary of Labor NONDISCRIMINATION ON THE BASIS OF SEX IN EDUCATION PROGRAMS OR ACTIVITIES RECEIVING... submit either a single transition plan applicable to all such units, or a separate transition plan applicable to each such unit. (b) Content of plans. In order to be approved by the Secretary of Education,...

  13. 45 CFR 618.230 - Transition plans.

    Science.gov (United States)

    2010-10-01

    ... ON THE BASIS OF SEX IN EDUCATION PROGRAMS OR ACTIVITIES RECEIVING FEDERAL FINANCIAL ASSISTANCE... that is composed of more than one administratively separate unit may submit either a single transition...) Content of plans. In order to be approved by the Secretary of Education, a transition plan shall:...

  14. 10 CFR 5.230 - Transition plans.

    Science.gov (United States)

    2010-01-01

    ... REGULATORY COMMISSION NONDISCRIMINATION ON THE BASIS OF SEX IN EDUCATION PROGRAMS OR ACTIVITIES RECEIVING... either a single transition plan applicable to all such units, or a separate transition plan applicable to each such unit. (b) Content of plans. In order to be approved by the Secretary of Education,...

  15. 18 CFR 1317.230 - Transition plans.

    Science.gov (United States)

    2010-04-01

    ... NONDISCRIMINATION ON THE BASIS OF SEX IN EDUCATION PROGRAMS OR ACTIVITIES RECEIVING FEDERAL FINANCIAL ASSISTANCE... and that is composed of more than one administratively separate unit may submit either a single...) Content of plans. In order to be approved by the Secretary of Education, a transition plan shall:...

  16. 22 CFR 229.230 - Transition plans.

    Science.gov (United States)

    2010-04-01

    ... Foreign Relations AGENCY FOR INTERNATIONAL DEVELOPMENT NONDISCRIMINATION ON THE BASIS OF SEX IN EDUCATION... administratively separate unit may submit either a single transition plan applicable to all such units, or a... Secretary of Education, a transition plan shall: (1) State the name, address, and Federal...

  17. 40 CFR 230.11 - Factual determinations.

    Science.gov (United States)

    2010-07-01

    ... sanitary landfill located in waters of the U.S. Activities to be conducted on fast land created by the... the physical, chemical, and biological components of the aquatic environment in light of subparts C...) Physical substrate determinations. Determine the nature and degree of effect that the proposed discharge...

  18. 17 CFR 230.902 - Definitions.

    Science.gov (United States)

    2010-04-01

    ... Exchange; the London Stock Exchange; the Bourse de Luxembourg; the Mexico Stock Exchange; the Borsa Valori... Stock Exchange; the Amsterdam Stock Exchange; the Australian Stock Exchange Limited; the Bermuda Stock Exchange; the Bourse de Bruxelles; the Copenhagen Stock Exchange; the European Association of Securities...

  19. 15 CFR 230.1 - Introduction.

    Science.gov (United States)

    2010-01-01

    ... measurement systems, evaluate measurement methods, or produce scientific data that can be referred to a common base. NIST Special Publication 260, “Catalog of NIST Standard Reference Materials,” lists and...

  20. 36 CFR 230.31 - Definitions.

    Science.gov (United States)

    2010-07-01

    ..., United States Department of Agriculture. Committee. The State Forest Stewardship Coordinating Committee... accounting period, used by the United States Government, from October 1 through September 30. Landowner. An... jointly prepares this plan with the State Forest Stewardship Coordinating Committee to facilitate...

  1. 2 CFR 230.20 - Applicability.

    Science.gov (United States)

    2010-01-01

    ... federally-recognized Indian tribal government, 2 CFR part 225 shall apply. (c) Exclusion of some non-profit... all Federal agencies in determining the costs of work performed by non-profit organizations under... concerned. Thus, if a subaward is to a non-profit organization, this part shall apply; if a subaward is to...

  2. 17 CFR 230.418 - Supplemental information.

    Science.gov (United States)

    2010-04-01

    ... new industry segment or has made public its intentions to introduce a new product or to do business in a new industry segment, and this action requires the investment of a material amount of the assets... a document, a copy of the full report of the engineer or other expert who estimated the reserves; (7...

  3. 17 CFR 230.904 - Offshore resales.

    Science.gov (United States)

    2010-04-01

    ... REGULATIONS, SECURITIES ACT OF 1933 Regulation S-Rules Governing Offers and Sales Made Outside the United... concession, fee or other remuneration in respect of the securities offered or sold: (i) Neither the seller... selling concession, fee or other remuneration in respect of the securities sold, the seller or a person...

  4. 33 CFR 230.9 - Categorical exclusions.

    Science.gov (United States)

    2010-07-01

    ... Endangered Species Act, the Fish and Wildlife Coordination Act, the National Historic Preservation Act, the Clean Water Act, etc., is always mandatory, even for actions not requiring an EA or EIS. (a) For a period of one year from the effective date of these regulations, district commanders should maintain...

  5. 40 CFR 230.2 - Applicability.

    Science.gov (United States)

    2010-07-01

    ... Corps of Engineers (see 33 CFR 209.145 and section 150 of Pub. L. 94-587, Water Resources Development... baseline from which the territorial sea is measured, and the discharge of fill material into the territorial sea, pursuant to the procedures referred to in paragraphs (a)(1) and (2) of this section....

  6. 40 CFR 230.3 - Definitions.

    Science.gov (United States)

    2010-07-01

    ... as may be designated by the Secretary of the Army to issue or deny permits under section 404 of the... taking into consideration cost, existing technology, and logistics in light of overall project purposes...

  7. 49 CFR 230.80 - Cabs.

    Science.gov (United States)

    2010-10-01

    ... the cab. Cab floors shall be kept free of tripping or slipping hazards. The cab climate shall be... fastened to the cab. New construction or renewals made of iron or steel pipe greater than 1/8 inch NPS that...

  8. 40 CFR 230.92 - Definitions.

    Science.gov (United States)

    2010-07-01

    ... mitigation), or by a mitigation bank or an in-lieu fee program. Condition means the relative ability of an... compensatory mitigation decisions that support the sustainability or improvement of aquatic resources in...

  9. BMI and all cause mortality: systematic review and non-linear dose-response meta-analysis of 230 cohort studies with 3.74 million deaths among 30.3 million participants.

    Science.gov (United States)

    Aune, Dagfinn; Sen, Abhijit; Prasad, Manya; Norat, Teresa; Janszky, Imre; Tonstad, Serena; Romundstad, Pål; Vatten, Lars J

    2016-05-04

    To conduct a systematic review and meta-analysis of cohort studies of body mass index (BMI) and the risk of all cause mortality, and to clarify the shape and the nadir of the dose-response curve, and the influence on the results of confounding from smoking, weight loss associated with disease, and preclinical disease. PubMed and Embase databases searched up to 23 September 2015. Cohort studies that reported adjusted risk estimates for at least three categories of BMI in relation to all cause mortality. Summary relative risks were calculated with random effects models. Non-linear associations were explored with fractional polynomial models. 230 cohort studies (207 publications) were included. The analysis of never smokers included 53 cohort studies (44 risk estimates) with >738 144 deaths and >9 976 077 participants. The analysis of all participants included 228 cohort studies (198 risk estimates) with >3 744 722 deaths among 30 233 329 participants. The summary relative risk for a 5 unit increment in BMI was 1.18 (95% confidence interval 1.15 to 1.21; I(2)=95%, n=44) among never smokers, 1.21 (1.18 to 1.25; I(2)=93%, n=25) among healthy never smokers, 1.27 (1.21 to 1.33; I(2)=89%, n=11) among healthy never smokers with exclusion of early follow-up, and 1.05 (1.04 to 1.07; I(2)=97%, n=198) among all participants. There was a J shaped dose-response relation in never smokers (Pnon-linearity <0.001), and the lowest risk was observed at BMI 23-24 in never smokers, 22-23 in healthy never smokers, and 20-22 in studies of never smokers with ≥20 years' follow-up. In contrast there was a U shaped association between BMI and mortality in analyses with a greater potential for bias including all participants, current, former, or ever smokers, and in studies with a short duration of follow-up (<5 years or <10 years), or with moderate study quality scores. Overweight and obesity is associated with increased risk of all cause mortality and the nadir of the curve

  10. 49 CFR 230.29 - Inspection and repair.

    Science.gov (United States)

    2010-10-01

    ..., DEPARTMENT OF TRANSPORTATION STEAM LOCOMOTIVE INSPECTION AND MAINTENANCE STANDARDS Boilers and Appurtenances... operator shall inspect and repair all steam locomotive boilers and appurtenances under their control. They shall immediately remove from service any boiler that has developed cracks in the barrel. The...

  11. 49 CFR 230.50 - Time of testing.

    Science.gov (United States)

    2010-10-01

    ..., DEPARTMENT OF TRANSPORTATION STEAM LOCOMOTIVE INSPECTION AND MAINTENANCE STANDARDS Boilers and Appurtenances... necessary, under steam at every 92 service day inspection, and also whenever any irregularity is...

  12. 49 CFR 230.33 - Welded repairs and alterations.

    Science.gov (United States)

    2010-10-01

    ... ADMINISTRATION, DEPARTMENT OF TRANSPORTATION STEAM LOCOMOTIVE INSPECTION AND MAINTENANCE STANDARDS Boilers and... portions of the boiler, the steam locomotive owner and/or operator shall submit a written request for... national standard for boiler repairs. The steam locomotive owner and/or operator shall satisfy...

  13. 49 CFR 230.34 - Riveted repairs and alterations.

    Science.gov (United States)

    2010-10-01

    ... ADMINISTRATION, DEPARTMENT OF TRANSPORTATION STEAM LOCOMOTIVE INSPECTION AND MAINTENANCE STANDARDS Boilers and... portions of the boiler. Prior to making riveted alterations on unstayed portions of the boiler, the steam... standard for boiler repairs. The steam locomotive owner and/or operator shall satisfy...

  14. 49 CFR 230.41 - Flexible staybolts with caps.

    Science.gov (United States)

    2010-10-01

    ... ADMINISTRATION, DEPARTMENT OF TRANSPORTATION STEAM LOCOMOTIVE INSPECTION AND MAINTENANCE STANDARDS Boilers and... length of the bolt and into the head not less than one third of the diameter of the head, the steam.... Before the steam locomotive is placed in service, the inner ends of all telltale holes shall be...

  15. 49 CFR 230.49 - Setting of safety relief valves.

    Science.gov (United States)

    2010-10-01

    ... ADMINISTRATION, DEPARTMENT OF TRANSPORTATION STEAM LOCOMOTIVE INSPECTION AND MAINTENANCE STANDARDS Boilers and... safety relief valves, two steam gauges shall be used, one of which must be so located that it will be in... varies more than 3 psi they shall be removed from the boiler, tested, and corrected before the...

  16. 49 CFR 230.32 - Time and method of inspection.

    Science.gov (United States)

    2010-10-01

    ... ADMINISTRATION, DEPARTMENT OF TRANSPORTATION STEAM LOCOMOTIVE INSPECTION AND MAINTENANCE STANDARDS Boilers and... boiler shall completely be inspected at the 1472 service day inspection. The jacket, lagging and any.... Those portions of the boiler that are exposed and able to be inspected as required by the...

  17. 23 CFR 230.409 - Contract compliance review procedures.

    Science.gov (United States)

    2010-04-01

    ... training provisions; and (4) Where compliance with equal opportunity requirements is questionable. (Based...) No compliance review shall be conducted that is based on a home office work force of less than 15... classification, race, national origin and sex; (viii) A list of minority- or female-owned companies contacted as...

  18. 6 CFR 27.230 - Risk-based performance standards.

    Science.gov (United States)

    2010-01-01

    ... individuals and vehicles as they enter, including, (i) Measures to deter the unauthorized introduction of... Systems (PCS), Industrial Control Systems (ICS), critical business system, and other sensitive... internally and with assistance of local law enforcement and first responders; (10) Monitoring. Maintain...

  19. 33 CFR 230.16 - Lead and cooperating agencies.

    Science.gov (United States)

    2010-07-01

    ... (e) and (f). (a) Lead Agency. The Corps will normally be lead agency for Corps civil works projects..., navigation, hydropower and Corps regulatory responsibilities. See Appendix II of CEQ regulations (49 FR 49750...

  20. 49 CFR 238.230 - Safety appliances-new equipment.

    Science.gov (United States)

    2010-10-01

    ... that the standard provides for the same complement of handholds, sill steps, ladders, hand or parking brakes, running boards, and other safety appliances as are required for a piece of equipment of...

  1. 17 CFR 230.405 - Definitions of terms.

    Science.gov (United States)

    2010-04-01

    ... certified public accountant. Charter. The term charter includes articles of incorporation, declarations of trust, articles of association or partnership, or any similar instrument, as amended, affecting (either..., computer networks and other forms of computer data compilation. Graphic communication shall not include a...

  2. Jar Test. Training Module 5.230.2.77.

    Science.gov (United States)

    Bonte, John L.; Davidson, Arnold C.

    This document is an instructional module package prepared in objective form for use by an instructor familiar with the jar test and its application to the coagulation, floculation and sedimentation processes, and the chemical precipitation process. Included are objectives, an instructor guide, student handouts, and transparency masters. A video…

  3. 36 CFR 230.21 - Implementation of the program.

    Science.gov (United States)

    2010-07-01

    ... 36 Parks, Forests, and Public Property 2 2010-07-01 2010-07-01 false Implementation of the program... Implementation of the program. (a) The Urban and Community Forestry Assistance Program is implemented through the..., Cooperative Agreements, and Other Agreements Handbook (FSH 1509.11). The Forest Service Manual and...

  4. 33 CFR 230.25 - Environmental review and consultation requirements.

    Science.gov (United States)

    2010-07-01

    ... so if deemed appropriate, requesting formal discussions on the matter. When the International Joint Commission (IJC) or the International Boundary and Water Commission, United States and Mexico (IBWC)...

  5. 16 CFR 23.0 - Scope and application.

    Science.gov (United States)

    2010-01-01

    ... trade (including but not limited to manufacturers, suppliers, and retailers) engaged in the business of... deception, persons, partnerships, or corporations in the business of appraising, identifying, or grading industry products should utilize the terminology and standards set forth in the guides. (c) These...

  6. 12 CFR Supplement I to Part 230 - Official Staff Interpretations

    Science.gov (United States)

    2010-01-01

    ... regulation. (k) Deposit broker 1. General. A deposit broker is a person who is in the business of placing or.... Consistent terminology. Institutions must use consistent terminology to describe terms or features required...-term notices must use the same terminology so that consumers can readily identify the fee. (b)...

  7. 24 CFR 1006.230 - Administrative and planning costs.

    Science.gov (United States)

    2010-04-01

    ... 24 Housing and Urban Development 4 2010-04-01 2010-04-01 false Administrative and planning costs... Administrative and planning costs. Up to such amount as HUD may authorize, or such other limit as may be... planning expenses of the DHHL relating to carrying out the Act and this part and activities assisted with...

  8. 40 CFR 1033.230 - Grouping locomotives into engine families.

    Science.gov (United States)

    2010-07-01

    ... air is cooled). (13) The intake manifold induction port size and configuration. (14) The type of fuel... of smoke control system. (18) The exhaust manifold port size and configuration. (19) The type of...) The combustion chamber configuration and the surface-to-volume ratio of the combustion chamber when...

  9. 2 CFR Appendix A to Part 230 - General Principles

    Science.gov (United States)

    2010-01-01

    ... information to members, legislative or administrative bodies, or the public. c. Promotion, lobbying, and other... made; the mix of Federal and non-Federal work at the organization is too erratic to permit an equitable...

  10. 17 CFR 230.419 - Offerings by blank check companies.

    Science.gov (United States)

    2010-04-01

    ....C. 1813 (1)); (B) Securities of any open-end investment company registered under the Investment Company Act of 1940 (15 U.S.C. 80a-1 et seq.) that holds itself out as a money market fund meeting the... audited financial statements for the first full fiscal year of operations following consummation of...

  11. 12 CFR 230.9 - Enforcement and record retention.

    Science.gov (United States)

    2010-01-01

    ... listed in that section. (b) Civil liability. Section 271 of the Act contains the provisions relating to civil liability for failure to comply with the requirements of the act and this part; Section 271...

  12. Dicty_cDB: VSC230 [Dicty_cDB

    Lifescience Database Archive (English)

    Full Text Available equence ---yy*hlik*khinifnni**n*KGEXKIFDKIKKMGAKSSKPKNIVQGSNSSNGRGGS XFTF*a*lkkkkkkkkknviisiymink...k Frame B: ---yy*hlik*khinifnni**n*KGEXKIFDKIKKMGAKSSKPKNIVQGSNSSNGRGGS XFTF*a*lkkkkkkkkknviisiyminkinhfkmif

  13. 40 CFR 170.230 - Pesticide safety training for handlers.

    Science.gov (United States)

    2010-07-01

    ... (iii) Have completed a pesticide safety train-the-trainer program approved by a State, Federal, or... 40 Protection of Environment 23 2010-07-01 2010-07-01 false Pesticide safety training for handlers... training for handlers. (a) Requirement. Before any handler performs any handling task, the handler...

  14. 40 CFR 230.95 - Ecological performance standards.

    Science.gov (United States)

    2010-07-01

    ... exhibited by the regional class of aquatic resources as a result of natural processes and anthropogenic... hydrologic variability exhibited by reference aquatic resources, especially wetlands. Where practicable, performance standards should take into account the expected stages of the aquatic resource development process...

  15. 33 CFR 110.230 - Puget Sound Area, Wash.

    Science.gov (United States)

    2010-07-01

    .... (7) Smith Cove General Anchorage (west), Elliott Bay. Shoreward of a line beginning at Fourmile Rock Light; thence to a point bearing 207°, 1,100 yards, from Fourmile Rock Light; thence southeasterly to a... constructed of wood shall, unless there are steel bulwarks or metallic cases or cargo on board, be fitted...

  16. 17 CFR 230.457 - Computation of fee.

    Science.gov (United States)

    2010-04-01

    ... consolidated reporting system (for exchange traded securities and last sale reported over-the-counter... principal amount of debt securities to be offered is increased by an amendment filed prior to the effective... specified date within 5 business days prior to the date of filing the registration statement. (d) Where...

  17. 23 CFR 230.204 - Implementation of supportive services.

    Science.gov (United States)

    2010-04-01

    ... services funds allocated to the States shall not be used to finance the training of State highway agency... technical skills involved in highway construction; (3) Services designed to develop and improve...

  18. 23 CFR 230.113 - Implementation of supportive services.

    Science.gov (United States)

    2010-04-01

    ... which will increase the effectiveness of approved training programs. State highway agencies shall give..., formal advertising is not required by the FHWA, however, the State highway agency shall solicit proposals... effectiveness of approved on-the-job training programs, particularly their effectiveness in providing meaningful...

  19. 36 CFR 230.4 - State program administration.

    Science.gov (United States)

    2010-07-01

    ... planting, maintenance, and improvement, and other high priority practices within the State that will result... be used to finance State Program development and administration. The State Forester must...

  20. 230-IJBCS-Article-Dr P N Ndoutoumou

    African Journals Online (AJOL)

    RHUMSIKI

    1 Université des Sciences et Techniques de Masuku, Institut National Supérieur d'Agronomie et de ... The self-pollinated embryos regularly developed according to the initial polarity apex-base. In ..... Developmental biology of the cereal.

  1. Dicty_cDB: VFH230 [Dicty_cDB

    Lifescience Database Archive (English)

    Full Text Available vkmklevgvykkvtklhkllvsftliskkvslwlkl wliltfsn*nlklnvnqeeniewkvktxevvdgdiixlqixtxqi*x Translated Amino Acid s...khmkkkkv qlvlcqkslklvtah*issislhvvkmklevgvykkvtklhkllvsftliskkvslwlkl wliltfsn*nlklnvnqeeniewkvktxevvdgdiixl

  2. 46 CFR 16.230 - Random testing requirements.

    Science.gov (United States)

    2010-10-01

    ...'s Certificate of Inspection; (2) Perform the duties and functions of patrolmen or watchmen required... safe operation of the vessel; (3) Perform the duties and functions of patrolmen or watchmen required...

  3. 40 CFR 1065.230 - Raw exhaust flow meter.

    Science.gov (United States)

    2010-07-01

    ... a chemical-balance calculation to determine work from brake-specific fuel consumption and fuel... involve a laminar flow element or a thermal-mass meter. Note that your overall system for measuring raw...

  4. Dicty_cDB: VFM230 [Dicty_cDB

    Lifescience Database Archive (English)

    Full Text Available k08, 5' ... 248 1e-85 3 ( BJ417399 ) Dictyostelium discoideum cDNA clone:ddv30a17, 5' ... 68 7e-20 2 ( DW185549 ) EST01819 Who...le Female 1 Aedes aegypti cDNA clone ... 50 0.100 1 ( DW185535 ) EST01805 Who...le Female 1 Aedes aegypti cDNA clone ... 50 0.100 1 ( DW185372 ) EST01642 Whole Female 1 Aedes... aegypti cDNA clone ... 50 0.100 1 ( DW185251 ) EST01521 Whole Female 1 Aedes aegypti cDNA clone ... 50 0.10...0 1 ( DW184990 ) EST01260 Whole Female 1 Aedes aegypti cDNA clone ... 50 0.100 1 ( DW184846 ) EST01116 Who

  5. 40 CFR 230.30 - Threatened and endangered species.

    Science.gov (United States)

    2010-07-01

    .... (a) An endangered species is a plant or animal in danger of extinction throughout all or a significant portion of its range. A threatened species is one in danger of becoming an endangered species in...

  6. 40 CFR 230.91 - Purpose and general considerations.

    Science.gov (United States)

    2010-07-01

    ... these requirements, the district engineer will issue an individual section 404 permit only upon a... done after taking into consideration cost, existing technology, and logistics in light of overall...

  7. 17 CFR 230.421 - Presentation of information in prospectuses.

    Science.gov (United States)

    2010-04-01

    ... information is clear. You are encouraged to use tables, schedules, charts and graphic illustrations of the... organization, language, and design of the front and back cover pages, the summary, and the risk factors section.... (3) In designing these sections or other sections of the prospectus, you may include pictures, logos...

  8. 21 CFR 172.230 - Microcapsules for flavoring substances.

    Science.gov (United States)

    2010-04-01

    ... limitations Succinylated gelatin—Not to exceed 15 percent by combined weight of the microcapsule and flavoring... percent by combined weight of the microcapsule and spice-flavoring substance. (b) The...

  9. 40 CFR 230.93 - General compensatory mitigation requirements.

    Science.gov (United States)

    2010-07-01

    ... district engineer must assess the likelihood for ecological success and sustainability, the location of the compensation site relative to the impact site and their significance within the watershed, and the costs of the... position and resource type of compensatory mitigation projects for the sustainability of aquatic...

  10. 33 CFR 2.30 - Exclusive Economic Zone.

    Science.gov (United States)

    2010-07-01

    ... by the United States) in which the United States has the sovereign rights and jurisdiction and all...) Under customary international law as reflected in Article 56 of the 1982 United Nations Convention on...

  11. The conceptual device of GOST 12.0.230-2007 from positions of the developed control system of a labour safety. the Part 1 / Анализ понятийного аппарата ГОСТ 12.0.230—2007 с позиций сложившейся системы управления охраной труда. Часть 1

    Directory of Open Access Journals (Sweden)

    Spasova Y.A. / Спасова Елена Андреевна

    Full Text Available In 2003 GOST 12.0.006—2002 [1] has been installed, and in 2009 it has been replaced by GOST 12.0.230-2007 [2]. Both these of the standard enter in the Russian Federation ideas and the maintenance of the document of the International organisation of work (SQUANDERER ILO-OSH 2001 «Guidelines on occupational safety and health management systems» (the Management on control systems of a labour safety [3]. The Moscow bureau the SQUANDERER has prepared transfer of this document into Russian executed under scientific edition of prof. G.Z. Fajnburga [4]. Documents the SQUANDERER have received a designation on their English abbreviation — OSH-MS.In turn the subjects of management in the field of maintenance of safe and healthy working conditions have received the embodiment in standardization. In 1996 in Great Britain national standard BS 8800:1996 «Management on systems of management in the field of a labour safety and the prevention of occupational diseases» on which basis the International organisation on standardization (ИСО — ISO had been developed the international standard OHSAS 18001:1999 has been developed. In 2007 this document has been replaced by standard OHSAS 18001:2007 [5], developed with wider attraction of the different countries. / Приведен сравнительный анализ понятийного аппарата в стандартах, разработанных Международной организацией труда и Международной организацией по стандартизации и их трактовке в российских государственных стандартах.

  12. Coupling of Uranium and Thorium Series Isotope Systematics for Age Determination of Late Pleistocene Zircons using LA-ICP-MS

    Science.gov (United States)

    Sakata, S.; Hirakawa, S.; Iwano, H.; Danhara, T.; Hirata, T.

    2014-12-01

    Zircon U-Th-Pb dating method is one of the most important tools for estimating the duration of magmatism by means of coupling of uranium, actinium and thorium decay series. Using U-Pb dating method, its reliability is principally guaranteed by the concordance between 238U-206Pb and 235U-207Pb ages. In case of dating Quaternary zircons, however, the initial disequilibrium effect on 230Th and 231Pa should be considered. On the other hands, 232Th-208Pb dating method can be a simple but powerful approach for investigating the age of crystallization because of negligible influence from initial disequilibrium effect. We have developed a new correction model for accurate U-Pb dating of the young zircon samples by taking into consideration of initial disequilibrium and a U-Pb vs Th-Pb concordia diagram for reliable age calibration was successfully established. Hence, the U-Th-Pb dating method can be applied to various zircons ranging from Hadean (4,600 Ma) to Quaternary (~50 ka) ages, and this suggests that further detailed information concerning the thermal history of the geological sequences can be made by the coupling of U-Th-Pb, fission track and Ar-Ar ages. In this presentation, we will show an example of U-Th-Pb dating for zircon samples from Sambe Volcano (3 to 100 ka), southwest Japan and the present dating technique using LA-ICP-MS.

  13. 49 CFR 230.20 - Alteration and repair report for steam locomotive boilers.

    Science.gov (United States)

    2010-10-01

    ... boilers. (a) Alterations. When an alteration is made to a steam locomotive boiler, the steam locomotive... steam locomotive boiler, the steam locomotive owner and/or operator shall file with the FRA Regional... the boiler. Whenever welded or riveted repairs are performed on stayed portions of a steam...

  14. 49 CFR 230.23 - Responsibility for general construction and safe working pressure.

    Science.gov (United States)

    2010-10-01

    ... construction of the steam locomotive boilers under their control. The steam locomotive owner shall establish the safe working pressure for each steam locomotive boiler, after giving full consideration to the... (Continued) FEDERAL RAILROAD ADMINISTRATION, DEPARTMENT OF TRANSPORTATION STEAM LOCOMOTIVE INSPECTION...

  15. 40 CFR 1045.230 - How do I select engine families?

    Science.gov (United States)

    2010-07-01

    ... family, as long as they are identical to the engine configuration with respect to that fuel type for the... of the engine in the same engine family as the dual-fuel engine if engine operation on each fuel type... 40 Protection of Environment 32 2010-07-01 2010-07-01 false How do I select engine families?...

  16. 36 CFR 230.38 - State priority plan-technical assistance.

    Science.gov (United States)

    2010-07-01

    ...—technical assistance. (a) Technical assistance includes, but is not limited to: (1) Agreements with other... technical assistance delivery by State forestry agencies or development of such technical assistance; (4... undertakings. (b) If a State determines that all or some of its funds will be used for technical assistance...

  17. 75 FR 56051 - Bemidji to Grand Rapids Minnesota 230 kV Transmission Line Project

    Science.gov (United States)

    2010-09-15

    ...) transmission line between the Wilton Substation near Bemidji, Minnesota and the Boswell Substation near Grand... also proposes to modify the Wilton and Boswell substations and construct a new 115 kV breaker station... substation in the Cass Lake, Minnesota area, depending on the route alternative selected for the Project. The...

  18. Feasibility of Combustion of Petroleum Coke in 230t/h Circulating Fluidized Bed Boiler

    Institute of Scientific and Technical Information of China (English)

    HAN Dong-tai; SONG Zheng-chang; XU Tao

    2003-01-01

    In order to reuse the high sulfur petroleum coke, the waste in chemical industry, as fuel of power plant for energy recovery, the combustion property of petroleum coke was researched experimentally in circulating fluidized bed (CFB) boiler. The performance of the boiler in burning mixed fuel with different ratios of coal to petroleum coke is obtained. Based on the experimental data, Factors influencing the stability of combustion,thermal efficiency of boiler, and emissions and desulphurisation are discussed. This study demonstrates that the combustion of petroleum coke in CFB boiler is applicable, and has great significance on the design and operation of CFB boiler to burn petroleum coke.

  19. 12 CFR Appendix A to Part 230 - Annual Percentage Yield Calculation

    Science.gov (United States)

    2010-01-01

    ... provided to the consumer to open, maintain, increase or renew an account. Interest or other earnings are... statements for each monthly cycle. The account has a daily balance of $1,000 for a 30-day statement...

  20. Akanmu et al., Afr J Tradit Complement Altern Med. (2011) 8(3):230 ...

    African Journals Online (AJOL)

    AJTCAM

    nutritive product for children, athletes and convalescents and health ... behaviors, learning and memory, hypnotic, anxiolytic, anticonvulsant and ...... pain transmission involves interplay of a number of neurotransmitters and ion channels.

  1. 17 CFR 230.175 - Liability for certain statements by issuers.

    Science.gov (United States)

    2010-04-01

    ... this chapter) and that relates to: (i) The effects of changing prices on the business enterprise, presented voluntarily or pursuant to Item 303 of Regulation S-K (§ 229.303 of this chapter), “Management's... revenues, income (loss), earnings (loss) per share, capital expenditures, dividends, capital structure...

  2. 17 CFR 230.498 - Summary Prospectuses for open-end management investment companies.

    Science.gov (United States)

    2010-04-01

    ... management investment companies. (a) Definitions. For purposes of this section: (1) Class means a class of... materials are posted. The Web site could be a central site with prominent links to each document. The legend... financial intermediary (such as a broker-dealer or bank) through which shares of the Fund may be purchased...

  3. 48 CFR 52.230-1 - Cost Accounting Standards Notices and Certification.

    Science.gov (United States)

    2010-10-01

    ... the current cost accounting period may not claim this exemption (4). Further, the exemption applies... award of a CAS-covered contract of $50 million or more or if, during its current cost accounting period... 48 Federal Acquisition Regulations System 2 2010-10-01 2010-10-01 false Cost Accounting...

  4. 17 CFR 230.254 - Solicitation of interest document for use prior to an offering statement.

    Science.gov (United States)

    2010-04-01

    ... Commission, as required by paragraph (b) of this section, oral communications with prospective investors and other broadcasts are permitted. The written documents, broadcasts and oral communications are each... or other consideration, nor of any commitment, binding or otherwise, from any prospective investor...

  5. 17 CFR 230.605 - Filing and use of the offering circular.

    Science.gov (United States)

    2010-04-01

    .... (b) Any written advertisement or other written communication, or any radio or television broadcast... information in a format readily communicated to investors. (d) If the offering is not completed within...

  6. Field Simulation of Main Magnet for 230 MeV Superconducting Cyclotron

    Institute of Scientific and Technical Information of China (English)

    WANG; Chuan; LI; Ming; ZHANG; Dong-sheng; YIN; Meng; YANG; Jian-jun; CUI; Tao; LV; Yin-long; AN; Shi-zhong; ZHANG; Tian-jue

    2015-01-01

    Superconducting proton cyclotrons have many advantages over competitive accelerators in medium energy range,namely,lower construction cost,lower operation cost,more compact thus more suitable to be installed in limited cite like hospitals.More specifically,as superconducting proton cyclotrons provide CW proton

  7. Research on spectrographic oil analysis of 12VE-230ZC diesel engine

    Institute of Scientific and Technical Information of China (English)

    2001-01-01

    With the spectrographic analysis, this paper analyzes the concentration of elements inoil, such as Fe, Cu, Cr, Al, Si etc. In order to monitor conditions and diagnose faults, the correlationcoefficient of main elements in oil has been used to study wear characteristics of friction pairs inrunning-in and working periods.

  8. Liu et al., Afr J Tradit Complement Altern Med. (2016) 13(3):230-242 ...

    African Journals Online (AJOL)

    1Key Laboratory of Marine Drugs, Ministry of Education of China, School of Medicine and Pharmacy, ...... Structural relations and interconversions of isomeric astilbins. J. Org. Chem., 40: .... combinatorial biocatalysis in nonaqueous media.

  9. TACIS 91: Application of leak-before-break concept in VVER 440-230

    Energy Technology Data Exchange (ETDEWEB)

    Bartholome, G.; Faidy, C.; Franco, C. [and others

    1997-04-01

    The applicability of the leak-before-break (LBB) concept for primary piping in the first generation of WWER type plants in Russia is investigated. The procedures for LBB behavior used in France and Germany are applied, and the evaluation is discussed within the framework of the European Technical Assistance for the Community of Independent States (TACIS) project. Emphasis is placed on experimental validation of national and international engineering practice for evaluating and optimizing existing installations. Design criteria of WWER plants are compared to western standard design.

  10. Afolabi et al., Afr J Tradit Complement Altern Med. (2013) 10(5):230 ...

    African Journals Online (AJOL)

    AJTCAM

    While anti-oxidant effects of Moringa oleifera in much oxidative stress related ... significant risk factor for testicular cancer, increasing the risk 2.5-11 fold (Benson et al., 1991). ... Any oxidising radical is a potential agent of oxidative stress.

  11. Structure of Even-Even 218-230 Ra Isotopes within the Interacting Boson Approximation Model

    Directory of Open Access Journals (Sweden)

    Diab S. M.

    2008-01-01

    Full Text Available A good description of the excited positive and negative parity states of radium nuclei (Z=88, N=130-142 is achieved using the interacting boson approximation model (IBA-1. The potential energy surfaces, energy levels, parity shift, electromagnetic transition rates B(E1, B(E2 and electric monopole strength X(E0/E2 are calculated for each nucleus. The analysis of the eigenvalues of the model Hamiltonian reveals the presence of an interaction between the positive and negative parity bands. Due to this interaction the $Delta I = 1$ staggering effect, between the energies of the ground state band and the negative parity state band, is produced including beat patterns.

  12. 46 CFR 8.230 - Minimum standards for a recognized classification society.

    Science.gov (United States)

    2010-10-01

    ... English language; (9) Have adequate resources, including research, technical, and managerial staff, to... required end-results; (19) Maintain and ensure compliance with a Code of Ethics that recognizes the...) Not have any business interest in, or share of ownership of, any vessel in its classed fleet; and...

  13. 33 CFR 230.26 - General considerations in preparing Corps EISs.

    Science.gov (United States)

    2010-07-01

    ... with 40 CFR 1502.21. Footnotes should be used only where their use greatly aids the reader's understanding of the point discussed. Citation in the EIS of material incorporated by reference should be made... in preparing Corps EISs. (a) Interdisciplinary preparation. See (40 CFR 1502.6). (b) Incorporation...

  14. 230Th/U ages Supporting Hanford Site‐Wide Probabilistic Seismic Hazard Analysis

    Science.gov (United States)

    Paces, James B.

    2014-01-01

    This product represents a USGS Administrative Report that discusses samples and methods used to conduct uranium-series isotope analyses and resulting ages and initial 234U/238U activity ratios of pedogenic cements developed in several different surfaces in the Hanford area middle to late Pleistocene. Samples were collected and dated to provide calibration of soil development in surface deposits that are being used in the Hanford Site-Wide probabilistic seismic hazard analysis conducted by AMEC. The report includes description of sample locations and physical characteristics, sample preparation, chemical processing and mass spectrometry, analytical results, and calculated ages for individual sites. Ages of innermost rinds on a number of samples from five sites in eastern Washington are consistent with a range of minimum depositional ages from 17 ka for cataclysmic flood deposits to greater than 500 ka for alluvium at several sites.

  15. 230Th/U ages Supporting Hanford Site-Wide Probabilistic Seismic Hazard Analysis

    Energy Technology Data Exchange (ETDEWEB)

    Paces, James B. [U.S. Geological Survey

    2014-08-31

    This product represents a USGS Administrative Report that discusses samples and methods used to conduct uranium-series isotope analyses and resulting ages and initial 234U/238U activity ratios of pedogenic cements developed in several different surfaces in the Hanford area middle to late Pleistocene. Samples were collected and dated to provide calibration of soil development in surface deposits that are being used in the Hanford Site-Wide probabilistic seismic hazard analysis conducted by AMEC. The report includes description of sample locations and physical characteristics, sample preparation, chemical processing and mass spectrometry, analytical results, and calculated ages for individual sites. Ages of innermost rinds on a number of samples from five sites in eastern Washington are consistent with a range of minimum depositional ages from 17 ka for cataclysmic flood deposits to greater than 500 ka for alluvium at several sites.

  16. 36 CFR 230.40 - Eligible practices for cost-share assistance.

    Science.gov (United States)

    2010-07-01

    ... regeneration or to ensure forest establishment and carbon sequestration. (3) Forest Stand Improvement—Practices to enhance growth and quality of wood fiber, special forest products, and carbon sequestration. (4... carbon sequestration in conjunction with agriculture, forest, and other land uses. (5) Water Quality...

  17. 2 CFR Appendix B to Part 230 - Selected Items of Cost

    Science.gov (United States)

    2010-01-01

    ... and prosecution of criminal and civil proceedings, claims, appeals and patent infringement 11... sponsored agreements or contracts 27. Maintenance and repair costs 28. Materials and supplies costs 29... subparagraphs c and d if incurred for more than one Federal award or for both sponsored work and other work of...

  18. 17 CFR 230.144A - Private resales of securities to institutions.

    Science.gov (United States)

    2010-04-01

    ... any transaction or series of transactions that, although in technical compliance with this section, is... principal trading markets. (e) Offers and sales of securities pursuant to this section shall be deemed not...

  19. 29 CFR 1952.230 - Description of the plan as initially approved.

    Science.gov (United States)

    2010-07-01

    ... the Kentucky Revised Statutes which became law on March 27, 1972; as well as legislation enacted and approved in a Special Session of the Legislature in 1972 amending the enabling legislation. The law as... are provisions within it granting the Commissioner of Labor the authority to inspect workplaces and...

  20. 33 CFR 155.230 - Emergency control systems for tank barges.

    Science.gov (United States)

    2010-07-01

    ... double-hull tank barge, you must adequately equip it and train its crew or, if it is unmanned, train the... barges operating only on the West Coast of the U.S., a system comprising heavy surge gear and bridle legs... the operation of the equipment or system. (iii) Training. On each manned barge, every crewmember...