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Sample records for dysprosium 166

  1. Separation of carrier-free holmium-166 from neutron-irradiated dysprosium targets

    SciTech Connect

    Dadachova, E.; Lambrecht, R.M.; Hetherington, E.L. ); Mirzadeh, S.; Knapp, F.F. Jr. )

    1994-12-01

    Holmium-166 ([sup 166]Ho, t[sub 1/2] = 26.4 h) is utilized in radiotherapeutic applications such as radioimmunospecific pharmaceuticals, bone marrow ablation, and radiation synovectomy. High specific activity [sup 166]Ho can be obtained from the decay of dysprosium-166 ([sup 166]Dy, t[sub 1/2] = 81.5 h). Dysprosium-166 is produced by the [sup 164]Dy[n,[gamma

  2. Metals fact sheet - Dysprosium

    SciTech Connect

    1997-01-01

    The article contains a summary of factors pertinent to dysprosium use. Geology and exploitation, mineral sources, production processes, global production,applications, and the dysprosium market are reviewed. Applications very briefly described include use as a cooling agent in nuclear control rods, magnets, magnetostrictive devices, phosphors, photoelectric devices, and glass. Current and historical market prices are given.

  3. Ultracold Dysprosium Gas

    NASA Astrophysics Data System (ADS)

    Bouazza, Chayma; Bose-Einstein Condensate Team

    2016-05-01

    Ultracold quantum gases with long-rang and anisotropic interactions open the door to new possibilities for exploring correlated many-body systems. The advantage of using ultracold atoms in order to realize such systems relies on the high level of control and manipulation offered by this field. Recent progress in trapping and cooling some Lanthanide atoms with a strong magnetic moment such as Erbium or Dysprosium present an important tool to investigate the dipole-dipole interaction. In particular the dysprosium atom has multiple features that make it an interesting candidate to study such systems. It has the largest magnetic moment among all atoms (10μB) and a rich energy level structure which allows the implementation of different cooling schemes. In my talk I will present our experiment with the bosonic isotope 164 Dy. I will set forth the interesting features of Dysprosium and explain the difference with alkali systems. UQUAM

  4. Magnetic relaxation in dysprosium-dysprosium collisions

    SciTech Connect

    Newman, Bonna K.; Johnson, Cort; Kleppner, Daniel; Greytak, Thomas J.; Brahms, Nathan; Au, Yat Shan; Connolly, Colin B.; Doyle, John M.

    2011-01-15

    The collisional magnetic reorientation rate constant g{sub R} is measured for magnetically trapped atomic dysprosium (Dy), an atom with large magnetic dipole moments. Using buffer gas cooling with cold helium, large numbers (>10{sup 11}) of Dy are loaded into a magnetic trap and the buffer gas is subsequently removed. The decay of the trapped sample is governed by collisional reorientation of the atomic magnetic moments. We find g{sub R}=1.9{+-}0.5x10{sup -11} cm{sup 3} s{sup -1} at 390 mK. We also measure the magnetic reorientation rate constant of holmium (Ho), another highly magnetic atom, and find g{sub R}=5{+-}2x10{sup -12} cm{sup 3} s{sup -1} at 690 mK. The Zeeman relaxation rates of these atoms are greater than expected for the magnetic dipole-dipole interaction, suggesting that another mechanism, such as an anisotropic electrostatic interaction, is responsible. Comparison with estimated elastic collision rates suggests that Dy is a poor candidate for evaporative cooling in a magnetic trap.

  5. [166Dy]Dy/166Ho hydroxide macroaggregates: an in vivo generator system for radiation synovectomy.

    PubMed

    Ferro-Flores, G; Hernández-Oviedo, O; Arteaga de Murphy, C; Tendilla, J I; Monroy-Guzmán, F; Pedraza-López, M; Aldama-Alvarado, K

    2004-12-01

    Radiation synovectomy is an effective treatment in patients suffering from inflammatory-rheumatoid and degenerative joint diseases. The aim of this work was to examine the feasibility of preparing dysprosium-166 (166Dy)/holmium-166(166Ho) hydroxide macroaggregates ([166Dy]Dy/166Ho-HM) as an in vivo generator for radiation synovectomy evaluating whether the stability of 166Dy-HM and 166Ho-HM complexes is maintained when the daughter 166Ho is formed. The Monte Carlo (MCNP4B) theoretical depth dose profile for the in vivo [166Dy]Dy/166Ho generator system in a joint model was calculated and compared with that produced by 90Y, 153Sm and 166Ho. 166Dy was obtained by neutron irradiation of enriched 164Dy2O3 in a Triga Mark III reactor. Macroaggregates were prepared by reaction of [166Dy]DyCl3 with 0.5 M NaOH in an ultrasonic bath. [166Dy]Dy/166Ho-HM was obtained with radiochemical purity >99.5% and with the majority of particles in the 2-5 microm range. In vitro studies demonstrated that the radio-macroaggregates are stable in saline solution and human serum without a significant change in the particle size over 14 d, suggesting that no translocation of the daughter nucleus occurs subsequent to beta- decay of 166Dy. Biological studies in normal rats demonstrated high retention in the knee joint even 7 d after [166Dy]Dy/166Ho-HM administration. The Monte Carlo (MCNP4B) theoretical depth dose profiles in a joint model, showed that the in vivo [166Dy]Dy/166Ho generator system would produce 25% and 50% less radiation dose to the articular cartilage and bone surface, respectively, than that produced by 90Y or pure 166Ho in a treatment with the same therapeutic dose to the synovium surface. Despite that 153Sm showed the best depth dose profile sparing doses to healthy tissues, the use of 166Dy could provide the advantage of being applied in patients that cannot be reached within a few hours from a nuclear reactor and to produce less radiation exposure to the medical personnel

  6. Dysprosium magneto-optical traps

    SciTech Connect

    Youn, Seo Ho; Lu Mingwu; Ray, Ushnish; Lev, Benjamin L.

    2010-10-15

    Magneto-optical traps (MOTs) of highly magnetic lanthanides open the door to explorations of novel phases of strongly correlated matter such as lattice supersolids and quantum liquid crystals. We recently reported the first MOTs of the five high-abundance isotopes of the most magnetic atom, dysprosium. Described here are details of the experimental technique employed for repumper-free Dy MOTs containing up to half a billion atoms. Extensive characterization of the MOTs' properties--population, temperature, loading, metastable decay dynamics, and trap dynamics--is provided.

  7. Preparation and properties of dysprosium nanocapsules coated with boron, carbon, and dysprosium oxide

    SciTech Connect

    Si, P.Z.; Brueck, E.; Zhang, Z.D.; Skorvanek, I.; Kovac, J.; Zhang, M

    2004-06-08

    Boron-coated dysprosium/dysprosium oxide, carbon-coated dysprosium/DyC{sub 2}, and dysprosium oxide-coated dysprosium nanocapsules were prepared using an arc discharge method in diborane, methane, and argon, respectively. The magnetization of these nanocapsules has been measured at temperatures between 4 and 290 K, in applied fields up to 6 T. The transition temperature of nanocrystalline Dy from the helical phase to the ferromagnetic phase is much lower than that of bulk Dy. The linear temperature dependence of the inverse susceptibility of these nanocapsules, being a mixture of superparamagnetic Dy and paramagnetic dysprosium oxide or carbide, can be explained within the molecular field theory with magnetic moments with the total angular momentum J=15/2 and the Lande factor g=4/3. We discuss the relations between the structure and the magnetization of these nanocapsules.

  8. Labeling of biotin with [166Dy]Dy/166Ho as a stable in vivo generator system.

    PubMed

    Ferro-Flores, G; Arteaga de Murphy, C; Pedraza-López, M; Monroy-Guzmán, F; Meléndez-Alafort, L; Tendilla, J I; Jiménez-Varela, R

    2003-04-14

    The aim of this work was to synthesize [166Dy]Dy/166Ho-DTPA-Biotin to evaluate its potential as a new radiopharmaceutical for targeted radiotherapy. Dysprosium-166 (166Dy) was obtained by neutron irradiation of enriched 164Dy(2)O(3) in a Triga Mark III reactor. The labeling was carried out in aqueous media at pH 8.0 by addition of [166Dy]DyCl(3) to diethylenetriaminepentaacetic-alpha,omega-bis(biocytinamide) (DTPA-Biotin). Radiochemical purity was determined by high-performance liquid chromatography (HPLC) and TLC. The biological integrity of labeled biotin was studied evaluating its avidity for avidin in an agarose column and by size-exclusion HPLC analysis of the radiolabeled DTPA-Biotin with and without the addition of avidin. Stability studies against dilution were carried out by diluting the radiocomplex solution with saline solution and with human serum at 37 degrees C for 24 h. The [166Dy]Dy/166Ho-labeled biotin was obtained with a 99.1+/-0.6% radiochemical purity. In vitro studies demonstrated that [166Dy]Dy/166Ho-DTPA-Biotin is stable after dilution in saline and in human serum and no translocation of the daughter nucleus occurs subsequent to beta(-) decay of 166Dy that could produce release of 166Ho(3+). Avidity of labeled biotin for avidin was not affected by the labeling procedure. Biodistribution studies in normal mice showed that the [166Dy]Dy/166Ho-DTPA-Biotin has a high renal clearance. In conclusion, the radiolabeled biotin prepared in this investigation has adequate properties to work as a stable in vivo generator system for targeted radiotherapy. PMID:12672609

  9. Diode-pumped dysprosium laser materials

    NASA Astrophysics Data System (ADS)

    Bowman, S. R.; Condon, N. J.; O'Connor, S.; Rosenberg, A.

    2009-05-01

    We are investigating materials for direct blue solid-state lasers assuming UV excitation with GaN based laser diodes. Room temperature spectroscopy is reported relevant to a proposed quasi-three level laser from the 4F9/2 level in trivalent dysprosium. Modeling based on these measurements suggests this is a promising new laser transition.

  10. Phenalenyl-based mononuclear dysprosium complexes

    PubMed Central

    Magri, Andrea; Fuhr, Olaf

    2016-01-01

    Summary The phenalenyl-based dysprosium complexes [Dy(PLN)2(HPLN)Cl(EtOH)] (1), [Dy(PLN)3(HPLN)]·[Dy(PLN)3(EtOH)]·2EtOH (2) and [Dy(PLN)3(H2O)2]·H2O (3), HPLN being 9-hydroxy-1H-phenalen-1-one, have been synthesized. All compounds were fully characterized by means of single crystal X-ray analysis, paramagnetic 1H NMR, MALDI-TOF mass spectrometry, UV–vis spectrophotometry and magnetic measurements. Both static (dc) and dynamic (ac) magnetic properties of these complexes have been investigated, showing slow relaxation of magnetization, indicative of single molecule magnet (SMM) behavior. Attempts to synthesize sublimable phenalenyl-based dysprosium complexes have been made by implementing a synthetic strategy under anhydrous conditions. The sublimed species were characterized and their thermal stability was confirmed. This opens up the possibility to deposit phenalenyl-based lanthanides complexes by sublimation onto surfaces, an important prerequisite for ongoing studies in molecular spintronics. PMID:27547617

  11. Phenalenyl-based mononuclear dysprosium complexes.

    PubMed

    Lan, Yanhua; Magri, Andrea; Fuhr, Olaf; Ruben, Mario

    2016-01-01

    The phenalenyl-based dysprosium complexes [Dy(PLN)2(HPLN)Cl(EtOH)] (1), [Dy(PLN)3(HPLN)]·[Dy(PLN)3(EtOH)]·2EtOH (2) and [Dy(PLN)3(H2O)2]·H2O (3), HPLN being 9-hydroxy-1H-phenalen-1-one, have been synthesized. All compounds were fully characterized by means of single crystal X-ray analysis, paramagnetic (1)H NMR, MALDI-TOF mass spectrometry, UV-vis spectrophotometry and magnetic measurements. Both static (dc) and dynamic (ac) magnetic properties of these complexes have been investigated, showing slow relaxation of magnetization, indicative of single molecule magnet (SMM) behavior. Attempts to synthesize sublimable phenalenyl-based dysprosium complexes have been made by implementing a synthetic strategy under anhydrous conditions. The sublimed species were characterized and their thermal stability was confirmed. This opens up the possibility to deposit phenalenyl-based lanthanides complexes by sublimation onto surfaces, an important prerequisite for ongoing studies in molecular spintronics. PMID:27547617

  12. Dysprosium oxide and dysprosium-oxide-doped titanium oxide thin films grown by atomic layer deposition

    SciTech Connect

    Tamm, Aile Kozlova, Jekaterina; Aarik, Lauri; Aarik, Jaan; Kukli, Kaupo; Link, Joosep; Stern, Raivo

    2015-01-15

    Dysprosium oxide and dysprosium-oxide-doped titanium oxide thin films were grown by atomic layer deposition on silicon substrates. For depositing dysprosium and titanium oxides Dy(thd){sub 3}-O{sub 3} and TiCl{sub 4}-O{sub 3} were used as precursors combinations. Appropriate parameters for Dy(thd){sub 3}-O{sub 3} growth process were obtained by using a quartz crystal microbalance system. The Dy{sub 2}O{sub 3} films were deposited on planar substrates and on three-dimensional substrates with aspect ratio 1:20. The Dy/Ti ratio of Dy{sub 2}O{sub 3}-doped TiO{sub 2} films deposited on a planar silicon substrate ranged from 0.04 to 0.06. Magnetometry studies revealed that saturation of magnetization could not be observed in planar Dy{sub 2}O{sub 3} films, but it was observable in Dy{sub 2}O{sub 3} films on 3D substrates and in doped TiO{sub 2} films with a Dy/Ti atomic ratio of 0.06. The latter films exhibited saturation magnetization 10{sup −6} A cm{sup 2} and coercivity 11 kA/m at room temperature.

  13. Dynamic polarizabilities and magic wavelengths for dysprosium

    SciTech Connect

    Dzuba, V. A.; Flambaum, V. V.; Lev, Benjamin L.

    2011-03-15

    We theoretically study dynamic scalar polarizabilities of the ground and select long-lived excited states of dysprosium, a highly magnetic atom recently laser cooled and trapped. We demonstrate that there is a set of magic wavelengths of the unpolarized lattice laser field for each pair of states, which includes the ground state and one of these excited states. At these wavelengths, the energy shift due to laser field is the same for both states, which can be useful for resolved sideband cooling on narrow transitions and precision spectroscopy. We present an analytical formula that, near resonances, allows for the determination of approximate values of the magic wavelengths without calculating the dynamic polarizabilities of the excited states.

  14. Study of dysprosium in different magnetic states

    NASA Astrophysics Data System (ADS)

    Lakhani, Archana; Baidya, Arunmay; Jena, Rudra Parasad

    2016-05-01

    A magnetotrasnport and magnetization study has been performed in order to probe the changes in the magnetic states of the rare earth element Dysprosium. Primarily there are three magnetic states present in this element in different temperature regions; one changing at Neel temperature (TN ~ 180K) via second order phase transition and another at Curie temperature (TC ~ 90K) via first order magnetic phase transition (FOMT). These two transitions merge at the magnetic field above 1.5T. The first derivative of resistivity indicates the possibility of spin fluctuation above first order phase transition in the spiral antiferromagnetic phase. The magnetoresistance up to 8T reveals distinct features in the para, antiferromagnetic spiral and ferromagnetic regions.

  15. First search for double β decay of dysprosium

    NASA Astrophysics Data System (ADS)

    Belli, P.; Bernabei, R.; Cappella, F.; Cerulli, R.; Danevich, F. A.; d'Angelo, S.; Di Vacri, M. L.; Incicchitti, A.; Laubenstein, M.; Nagorny, S. S.; Nisi, S.; Tolmachev, A. V.; Tretyak, V. I.; Yavetskiy, R. P.

    2011-06-01

    A search for double β decay of dysprosium was realized for the first time with the help of an ultra-low background HP Ge γ detector. After 2512 h of data taking with a 322 g sample of dysprosium oxide limits on double beta processes in 156Dy and 158Dy have been established on the level of T⩾10-10 yr. Possible resonant double electron captures in 156Dy and 158Dy were restricted on a similar level. As a by-product of the experiment we have measured the radioactive contamination of the Dy 2O 3 sample and set limits on the α decay of dysprosium isotopes to the excited levels of daughter nuclei as T⩾10-10 yr.

  16. Transverse laser cooling of a thermal atomic beam of dysprosium

    SciTech Connect

    Leefer, N.; Cingoez, A.; Gerber-Siff, B.; Sharma, Arijit; Torgerson, J. R.; Budker, D.

    2010-04-15

    A thermal atomic beam of dysprosium atoms is cooled using the 4f{sup 10}6s{sup 2}(J=8){yields}4f{sup 10}6s6p(J=9) transition at 421 nm. The cooling is done via a standing light wave orthogonal to the atomic beam. Efficient transverse cooling to the Doppler limit is demonstrated for all observable isotopes of dysprosium. Branching ratios to metastable states are demonstrated to be <5x10{sup -4}. A scheme for enhancement of the nonzero-nuclear-spin-isotope cooling and a method for direct identification of possible trap states are proposed.

  17. Discovery of dysprosium, holmium, erbium, thulium, and ytterbium isotopes

    SciTech Connect

    Fry, C.; Thoennessen, M.

    2013-09-15

    Currently, thirty-one dysprosium, thirty-two holmium, thirty-two erbium, thirty-three thulium, and thirty-one ytterbium isotopes have been observed and the discovery of these isotopes is described here. For each isotope a brief synopsis of the first refereed publication, including the production and identification method, is presented.

  18. Nuclear Data Sheets for A = 166

    SciTech Connect

    Baglin, Coral M.

    2008-05-01

    Nuclear structure data pertaining to all known A = 166 nuclides (Gd, Tb, Dy, Ho, Er, Tm, Yb, Lu, Hf, Ta, W, Re, Os, Ir, Pt) have been compiled and evaluated, and incorporated into the ENSDF data file. This evaluation for A = 166 supersedes the previous publication (E.N. Shurshikov and N.V. Timofeeva, Nuclear Data Sheets 67, 45 (1992) (literature cutoff date 1 October 1990)) and the revision by C.M. Baglin of {sup 166}W (literature cutoff data 16 April 2000). It includes literature available by 1 March 2008. Subsequent to the previous evaluation, {sup 166}Gd has been observed for the first time and the first observations of excited states in {sup 166}Tb, {sup 166}Re, {sup 166}Os and {sup 166}Ir have been reported: also, knowledge of collective structure in {sup 166}Dy. {sup 166}Ho, {sup 1676}Er, {sup 166}Tm, {sup 166}Yb, {sup 166}Lu, {sup 166}Hf, and {sup 166}Ta has been considerably expanded. However, the structure suggested here for {sup 166}Re is highly tentative and a further, more detailed study of {alpha} decay into (and out of) {sup 166}Re could be informative.

  19. Selected-control synthesis of dysprosium hydroxide and oxide nanorods by adjusting hydrothermal temperature

    SciTech Connect

    Song Xuchun Zheng Yifan; Wang Yun

    2008-05-06

    Dysprosium hydroxide and oxide nanorods were prepared directly from commercial bulk Dy{sub 2}O{sub 3} crystals by facile hydrothermal process at 130 and 210 deg. C, respectively. The as-synthesized dysprosium hydroxide and oxide nanorods were investigated by various techniques of XRD, TEM, SEM, and EDS. In the process, the temperature was found to play important roles in determining produce dysprosium hydroxide and oxide nanorods.

  20. Study of electronic structure and spin polarization of dysprosium

    SciTech Connect

    Mund, H. S.

    2015-06-24

    In this paper, I have presented the spin-dependent momentum density of ferromagnetic dysprosium using spin polarized relativistic Korringa-Kohn-Rostoker method. A fully relativistic approach has been used to determine the magnetic Compton profile. The density of state in term of majority-spin and minority-spin of Dy also calculated using SPR-KKR. The magnetic Compton profile discussed in term of 4f and diffused electrons.

  1. Dysprosium titanate as an absorber material for control rods

    NASA Astrophysics Data System (ADS)

    Risovany, V. D.; Varlashova, E. E.; Suslov, D. N.

    2000-09-01

    Disprosium titanate is an attractive control rod material for the thermal neutron reactors. Its main advantages are: insignificant swelling, no out-gassing under neutron irradiation, rather high neutron efficiency, a high melting point (˜1870°C), non-interaction with the cladding at temperatures above 1000°C, simple fabrication and easily reprocessed non-radioactive waste. It can be used in control rods as pellets and powder. The disprosium titanate control rods have worked off in the MIR reactor for 17 years, in VVER-1000 - for 4 years without any operating problems. After post-irradiation examinations this type of control rod having high lifetime was recommended for the VVER and RBMK. The paper presents the examination results of absorber element dummies containing dysprosium titanate, irradiated in the SM reactor to the neutron fluence of 3.4×10 22 cm -2 ( E>0.1 MeV) and, also, the data on structure, thermal-physical properties of dysprosium titanate, efficiency of dysprosium titanate control rods.

  2. Magnetic structure of dysprosium in epitaxial Dy films and in Dy/Er superlattices

    SciTech Connect

    Dumesnil, K.; Dufour, C.; Mangin, P.; Marchal, G.; Hennion, M.

    1996-09-01

    We present a magnetization and neutron-diffraction study of the basal plane magnetic structure of Dy epitaxial films and Dy/Er superlattices. The thermal evolution of the magnetic phases, the stability of the helical phase under a magnetic field, the thermal variation of the dysprosium in-plane and {ital c} parameters, and of the dysprosium turn angle are successively shown. In Dy/Er superlattices, the dysprosium helix propagates coherently through paramagnetic erbium; at low temperature, individual dysprosium layers undergo a ferromagnetic transition and are coupled antiferromagnetically to each other for erbium layers thicknesses larger than 20 A. In dysprosium films, as expected from the epitaxy effect, the Curie temperature of dysprosium is reduced if dysprosium is grown on yttrium and increased if it is grown on erbium, whereas it is unexpectedly close to the bulk value in Dy/Er superlattices. This amazing value of the Curie temperature in superlattices is correlated to two main experimentally observed effects: (i) the magnetoelastic driving force is reduced compared to bulk dysprosium because of the clamped {gamma} distortion; (ii) the difference between the exchange energies in the helical and the ferromagnetic phases is increased compared to the bulk value. {copyright} {ital 1996 The American Physical Society.}

  3. Dysprosium electrodeposition from a hexaalkylguanidinium-based ionic liquid

    NASA Astrophysics Data System (ADS)

    Berger, Claudia A.; Arkhipova, Maria; Maas, Gerhard; Jacob, Timo

    2016-07-01

    The rare-earth element dysprosium (Dy) is an important additive that increases the magnetocrystalline anisotropy of neodymium magnets and additionally prevents from demagnetizing at high temperatures. Therefore, it is one of the most important elements for high-tech industries and is mainly used in permanent magnetic applications, for example in electric vehicles, industrial motors and direct-drive wind turbines. In an effort to develop a more efficient electrochemical technique for depositing Dy on Nd-magnets in contrast to commonly used costly physical vapor deposition, we investigated the electrochemical behavior of dysprosium(iii) trifluoromethanesulfonate in a custom-made guanidinium-based room-temperature ionic liquid (RTIL). We first examined the electrodeposition of Dy on an Au(111) model electrode. The investigation was carried out by means of cyclic voltammetry (CV) and X-ray photoelectron spectroscopy (XPS). The initial stages of metal deposition were followed by in situ scanning tunneling microscopy (STM). CV measurements revealed a large cathodic reduction peak, which corresponds to the growth of monoatomic high islands, based on STM images taken during the initial stages of deposition. XPS identified these deposited islands as dysprosium. A similar reduction peak was also observed on an Nd-Fe-B substrate, and positively identified as deposited Dy using XPS. Finally, we varied the concentration of the Dy precursor, electrolyte flow and temperature during Dy deposition and demonstrated that each of these parameters could be used to increase the thickness of the Dy deposit, suggesting that these parameters could be tuned simultaneously in a temperature-controlled flow cell to enhance the thickness of the Dy layer.The rare-earth element dysprosium (Dy) is an important additive that increases the magnetocrystalline anisotropy of neodymium magnets and additionally prevents from demagnetizing at high temperatures. Therefore, it is one of the most important

  4. Dysprosium electrodeposition from a hexaalkylguanidinium-based ionic liquid.

    PubMed

    Berger, Claudia A; Arkhipova, Maria; Maas, Gerhard; Jacob, Timo

    2016-08-01

    The rare-earth element dysprosium (Dy) is an important additive that increases the magnetocrystalline anisotropy of neodymium magnets and additionally prevents from demagnetizing at high temperatures. Therefore, it is one of the most important elements for high-tech industries and is mainly used in permanent magnetic applications, for example in electric vehicles, industrial motors and direct-drive wind turbines. In an effort to develop a more efficient electrochemical technique for depositing Dy on Nd-magnets in contrast to commonly used costly physical vapor deposition, we investigated the electrochemical behavior of dysprosium(iii) trifluoromethanesulfonate in a custom-made guanidinium-based room-temperature ionic liquid (RTIL). We first examined the electrodeposition of Dy on an Au(111) model electrode. The investigation was carried out by means of cyclic voltammetry (CV) and X-ray photoelectron spectroscopy (XPS). The initial stages of metal deposition were followed by in situ scanning tunneling microscopy (STM). CV measurements revealed a large cathodic reduction peak, which corresponds to the growth of monoatomic high islands, based on STM images taken during the initial stages of deposition. XPS identified these deposited islands as dysprosium. A similar reduction peak was also observed on an Nd-Fe-B substrate, and positively identified as deposited Dy using XPS. Finally, we varied the concentration of the Dy precursor, electrolyte flow and temperature during Dy deposition and demonstrated that each of these parameters could be used to increase the thickness of the Dy deposit, suggesting that these parameters could be tuned simultaneously in a temperature-controlled flow cell to enhance the thickness of the Dy layer. PMID:27121463

  5. Joint solubility of samarium and dysprosium in solid magnesium

    NASA Astrophysics Data System (ADS)

    Rokhlin, L. L.; Dobatkina, T. V.; Lukyanova, E. A.; Korolkova, I. G.; Tarytina, I. E.

    2016-03-01

    The phase compositions of solid Mg-Sm-Dy alloys corresponding to the magnesium-corner region of the phase diagram are studied by optical and scanning electron microscopy, electrical resistivity measurements, and electron microprobe analysis. The obtained results allowed us to determine the joint solubility of samarium and dysprosium in solid magnesium at 500, 400, and 300°C; it decreases with decreasing temperature. The magnesium solid solution is found to be in equilibrium only with the Mg41Sm5 and Mg24Dy5 compounds, which are in equilibrium with the magnesium solid solution in the binary Mg-Sm and Mg-Dy systems.

  6. 17 CFR 166.4 - Branch offices.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ... 17 Commodity and Securities Exchanges 1 2010-04-01 2010-04-01 false Branch offices. 166.4 Section 166.4 Commodity and Securities Exchanges COMMODITY FUTURES TRADING COMMISSION CUSTOMER PROTECTION RULES § 166.4 Branch offices. Each branch office of each Commission registrant must use the name of the firm of which it is a branch for all...

  7. 9 CFR 166.7 - Cooking standards.

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ... 9 Animals and Animal Products 1 2010-01-01 2010-01-01 false Cooking standards. 166.7 Section 166.7 Animals and Animal Products ANIMAL AND PLANT HEALTH INSPECTION SERVICE, DEPARTMENT OF AGRICULTURE SWINE HEALTH PROTECTION SWINE HEALTH PROTECTION General Provisions § 166.7 Cooking standards. (a) Garbage shall be heated throughout at boiling (212...

  8. 9 CFR 166.13 - Licensee responsibilities.

    Code of Federal Regulations, 2014 CFR

    2014-01-01

    ... 9 Animals and Animal Products 1 2014-01-01 2014-01-01 false Licensee responsibilities. 166.13 Section 166.13 Animals and Animal Products ANIMAL AND PLANT HEALTH INSPECTION SERVICE, DEPARTMENT OF AGRICULTURE SWINE HEALTH PROTECTION SWINE HEALTH PROTECTION General Provisions § 166.13...

  9. 9 CFR 166.9 - Recordkeeping.

    Code of Federal Regulations, 2013 CFR

    2013-01-01

    ... 9 Animals and Animal Products 1 2013-01-01 2013-01-01 false Recordkeeping. 166.9 Section 166.9 Animals and Animal Products ANIMAL AND PLANT HEALTH INSPECTION SERVICE, DEPARTMENT OF AGRICULTURE SWINE HEALTH PROTECTION SWINE HEALTH PROTECTION General Provisions § 166.9 Recordkeeping. (a) Each...

  10. 9 CFR 166.7 - Cooking standards.

    Code of Federal Regulations, 2012 CFR

    2012-01-01

    ... 9 Animals and Animal Products 1 2012-01-01 2012-01-01 false Cooking standards. 166.7 Section 166.7 Animals and Animal Products ANIMAL AND PLANT HEALTH INSPECTION SERVICE, DEPARTMENT OF AGRICULTURE SWINE HEALTH PROTECTION SWINE HEALTH PROTECTION General Provisions § 166.7 Cooking standards. (a) Garbage...

  11. 9 CFR 166.7 - Cooking standards.

    Code of Federal Regulations, 2014 CFR

    2014-01-01

    ... 9 Animals and Animal Products 1 2014-01-01 2014-01-01 false Cooking standards. 166.7 Section 166.7 Animals and Animal Products ANIMAL AND PLANT HEALTH INSPECTION SERVICE, DEPARTMENT OF AGRICULTURE SWINE HEALTH PROTECTION SWINE HEALTH PROTECTION General Provisions § 166.7 Cooking standards. (a) Garbage...

  12. 9 CFR 166.9 - Recordkeeping.

    Code of Federal Regulations, 2014 CFR

    2014-01-01

    ... 9 Animals and Animal Products 1 2014-01-01 2014-01-01 false Recordkeeping. 166.9 Section 166.9 Animals and Animal Products ANIMAL AND PLANT HEALTH INSPECTION SERVICE, DEPARTMENT OF AGRICULTURE SWINE HEALTH PROTECTION SWINE HEALTH PROTECTION General Provisions § 166.9 Recordkeeping. (a) Each...

  13. 9 CFR 166.13 - Licensee responsibilities.

    Code of Federal Regulations, 2012 CFR

    2012-01-01

    ... 9 Animals and Animal Products 1 2012-01-01 2012-01-01 false Licensee responsibilities. 166.13 Section 166.13 Animals and Animal Products ANIMAL AND PLANT HEALTH INSPECTION SERVICE, DEPARTMENT OF AGRICULTURE SWINE HEALTH PROTECTION SWINE HEALTH PROTECTION General Provisions § 166.13...

  14. 9 CFR 166.13 - Licensee responsibilities.

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ... 9 Animals and Animal Products 1 2010-01-01 2010-01-01 false Licensee responsibilities. 166.13 Section 166.13 Animals and Animal Products ANIMAL AND PLANT HEALTH INSPECTION SERVICE, DEPARTMENT OF AGRICULTURE SWINE HEALTH PROTECTION SWINE HEALTH PROTECTION General Provisions § 166.13...

  15. 9 CFR 166.9 - Recordkeeping.

    Code of Federal Regulations, 2011 CFR

    2011-01-01

    ... 9 Animals and Animal Products 1 2011-01-01 2011-01-01 false Recordkeeping. 166.9 Section 166.9 Animals and Animal Products ANIMAL AND PLANT HEALTH INSPECTION SERVICE, DEPARTMENT OF AGRICULTURE SWINE HEALTH PROTECTION SWINE HEALTH PROTECTION General Provisions § 166.9 Recordkeeping. (a) Each...

  16. 9 CFR 166.9 - Recordkeeping.

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ... 9 Animals and Animal Products 1 2010-01-01 2010-01-01 false Recordkeeping. 166.9 Section 166.9 Animals and Animal Products ANIMAL AND PLANT HEALTH INSPECTION SERVICE, DEPARTMENT OF AGRICULTURE SWINE HEALTH PROTECTION SWINE HEALTH PROTECTION General Provisions § 166.9 Recordkeeping. (a) Each...

  17. 9 CFR 166.9 - Recordkeeping.

    Code of Federal Regulations, 2012 CFR

    2012-01-01

    ... 9 Animals and Animal Products 1 2012-01-01 2012-01-01 false Recordkeeping. 166.9 Section 166.9 Animals and Animal Products ANIMAL AND PLANT HEALTH INSPECTION SERVICE, DEPARTMENT OF AGRICULTURE SWINE HEALTH PROTECTION SWINE HEALTH PROTECTION General Provisions § 166.9 Recordkeeping. (a) Each...

  18. 9 CFR 166.13 - Licensee responsibilities.

    Code of Federal Regulations, 2013 CFR

    2013-01-01

    ... 9 Animals and Animal Products 1 2013-01-01 2013-01-01 false Licensee responsibilities. 166.13 Section 166.13 Animals and Animal Products ANIMAL AND PLANT HEALTH INSPECTION SERVICE, DEPARTMENT OF AGRICULTURE SWINE HEALTH PROTECTION SWINE HEALTH PROTECTION General Provisions § 166.13...

  19. 9 CFR 166.7 - Cooking standards.

    Code of Federal Regulations, 2013 CFR

    2013-01-01

    ... 9 Animals and Animal Products 1 2013-01-01 2013-01-01 false Cooking standards. 166.7 Section 166.7 Animals and Animal Products ANIMAL AND PLANT HEALTH INSPECTION SERVICE, DEPARTMENT OF AGRICULTURE SWINE HEALTH PROTECTION SWINE HEALTH PROTECTION General Provisions § 166.7 Cooking standards. (a) Garbage...

  20. 9 CFR 166.7 - Cooking standards.

    Code of Federal Regulations, 2011 CFR

    2011-01-01

    ... 9 Animals and Animal Products 1 2011-01-01 2011-01-01 false Cooking standards. 166.7 Section 166.7 Animals and Animal Products ANIMAL AND PLANT HEALTH INSPECTION SERVICE, DEPARTMENT OF AGRICULTURE SWINE HEALTH PROTECTION SWINE HEALTH PROTECTION General Provisions § 166.7 Cooking standards. (a) Garbage...

  1. 9 CFR 166.13 - Licensee responsibilities.

    Code of Federal Regulations, 2011 CFR

    2011-01-01

    ... 9 Animals and Animal Products 1 2011-01-01 2011-01-01 false Licensee responsibilities. 166.13 Section 166.13 Animals and Animal Products ANIMAL AND PLANT HEALTH INSPECTION SERVICE, DEPARTMENT OF AGRICULTURE SWINE HEALTH PROTECTION SWINE HEALTH PROTECTION General Provisions § 166.13...

  2. 16 CFR 16.6 - Charter.

    Code of Federal Regulations, 2011 CFR

    2011-01-01

    ... 16 Commercial Practices 1 2011-01-01 2011-01-01 false Charter. 16.6 Section 16.6 Commercial Practices FEDERAL TRADE COMMISSION ORGANIZATION, PROCEDURES AND RULES OF PRACTICE ADVISORY COMMITTEE MANAGEMENT § 16.6 Charter. (a) No advisory committee established, utilized, reestablished or renewed by...

  3. 16 CFR 16.6 - Charter.

    Code of Federal Regulations, 2013 CFR

    2013-01-01

    ... 16 Commercial Practices 1 2013-01-01 2013-01-01 false Charter. 16.6 Section 16.6 Commercial Practices FEDERAL TRADE COMMISSION ORGANIZATION, PROCEDURES AND RULES OF PRACTICE ADVISORY COMMITTEE MANAGEMENT § 16.6 Charter. (a) No advisory committee established, utilized, reestablished or renewed by the Commission under this part shall meet or...

  4. 16 CFR 16.6 - Charter.

    Code of Federal Regulations, 2012 CFR

    2012-01-01

    ... 16 Commercial Practices 1 2012-01-01 2012-01-01 false Charter. 16.6 Section 16.6 Commercial Practices FEDERAL TRADE COMMISSION ORGANIZATION, PROCEDURES AND RULES OF PRACTICE ADVISORY COMMITTEE MANAGEMENT § 16.6 Charter. (a) No advisory committee established, utilized, reestablished or renewed by...

  5. 16 CFR 16.6 - Charter.

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ... 16 Commercial Practices 1 2010-01-01 2010-01-01 false Charter. 16.6 Section 16.6 Commercial Practices FEDERAL TRADE COMMISSION ORGANIZATION, PROCEDURES AND RULES OF PRACTICE ADVISORY COMMITTEE MANAGEMENT § 16.6 Charter. (a) No advisory committee established, utilized, reestablished or renewed by...

  6. 16 CFR 16.6 - Charter.

    Code of Federal Regulations, 2014 CFR

    2014-01-01

    ... 16 Commercial Practices 1 2014-01-01 2014-01-01 false Charter. 16.6 Section 16.6 Commercial Practices FEDERAL TRADE COMMISSION ORGANIZATION, PROCEDURES AND RULES OF PRACTICE ADVISORY COMMITTEE MANAGEMENT § 16.6 Charter. (a) No advisory committee established, utilized, reestablished or renewed by...

  7. 17 CFR 166.3 - Supervision.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ... 17 Commodity and Securities Exchanges 1 2010-04-01 2010-04-01 false Supervision. 166.3 Section 166.3 Commodity and Securities Exchanges COMMODITY FUTURES TRADING COMMISSION CUSTOMER PROTECTION RULES § 166.3 Supervision. Each Commission registrant, except an associated person who has no...

  8. 22 CFR 16.6 - Security clearances.

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ... 22 Foreign Relations 1 2011-04-01 2011-04-01 false Security clearances. 16.6 Section 16.6 Foreign Relations DEPARTMENT OF STATE PERSONNEL FOREIGN SERVICE GRIEVANCE SYSTEM § 16.6 Security clearances. The agencies shall use their best endeavors to expedite security clearances whenever necessary to ensure a...

  9. 12 CFR 390.166 - Annual reports.

    Code of Federal Regulations, 2013 CFR

    2013-01-01

    ... general operating budget and uses the funds during its fiscal year. The NGEP's annual report for the... 12 Banks and Banking 5 2013-01-01 2013-01-01 false Annual reports. 390.166 Section 390.166 Banks... Agreements § 390.166 Annual reports. (a) Applicability date. This section applies only to covered...

  10. 12 CFR 390.166 - Annual reports.

    Code of Federal Regulations, 2012 CFR

    2012-01-01

    ... general operating budget and uses the funds during its fiscal year. The NGEP's annual report for the... 12 Banks and Banking 5 2012-01-01 2012-01-01 false Annual reports. 390.166 Section 390.166 Banks... Agreements § 390.166 Annual reports. (a) Applicability date. This section applies only to covered...

  11. 12 CFR 390.166 - Annual reports.

    Code of Federal Regulations, 2014 CFR

    2014-01-01

    ... general operating budget and uses the funds during its fiscal year. The NGEP's annual report for the... 12 Banks and Banking 5 2014-01-01 2014-01-01 false Annual reports. 390.166 Section 390.166 Banks... Agreements § 390.166 Annual reports. (a) Applicability date. This section applies only to covered...

  12. 7 CFR 1427.166 - Insurance.

    Code of Federal Regulations, 2011 CFR

    2011-01-01

    ... 7 Agriculture 10 2011-01-01 2011-01-01 false Insurance. 1427.166 Section 1427.166 Agriculture Regulations of the Department of Agriculture (Continued) COMMODITY CREDIT CORPORATION, DEPARTMENT OF AGRICULTURE LOANS, PURCHASES, AND OTHER OPERATIONS COTTON Recourse Seed Cotton Loans § 1427.166 Insurance....

  13. 22 CFR 16.6 - Security clearances.

    Code of Federal Regulations, 2013 CFR

    2013-04-01

    ... 22 Foreign Relations 1 2013-04-01 2013-04-01 false Security clearances. 16.6 Section 16.6 Foreign Relations DEPARTMENT OF STATE PERSONNEL FOREIGN SERVICE GRIEVANCE SYSTEM § 16.6 Security clearances. The agencies shall use their best endeavors to expedite security clearances whenever necessary to ensure a...

  14. 22 CFR 16.6 - Security clearances.

    Code of Federal Regulations, 2014 CFR

    2014-04-01

    ... 22 Foreign Relations 1 2014-04-01 2014-04-01 false Security clearances. 16.6 Section 16.6 Foreign Relations DEPARTMENT OF STATE PERSONNEL FOREIGN SERVICE GRIEVANCE SYSTEM § 16.6 Security clearances. The agencies shall use their best endeavors to expedite security clearances whenever necessary to ensure a...

  15. 22 CFR 16.6 - Security clearances.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ... 22 Foreign Relations 1 2010-04-01 2010-04-01 false Security clearances. 16.6 Section 16.6 Foreign Relations DEPARTMENT OF STATE PERSONNEL FOREIGN SERVICE GRIEVANCE SYSTEM § 16.6 Security clearances. The agencies shall use their best endeavors to expedite security clearances whenever necessary to ensure a...

  16. 21 CFR 211.166 - Stability testing.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ... 21 Food and Drugs 4 2010-04-01 2010-04-01 false Stability testing. 211.166 Section 211.166 Food and Drugs FOOD AND DRUG ADMINISTRATION, DEPARTMENT OF HEALTH AND HUMAN SERVICES (CONTINUED) DRUGS: GENERAL CURRENT GOOD MANUFACTURING PRACTICE FOR FINISHED PHARMACEUTICALS Laboratory Controls § 211.166 Stability testing. (a) There shall be a...

  17. 37 CFR 1.166 - Specimens.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... 37 Patents, Trademarks, and Copyrights 1 2014-07-01 2014-07-01 false Specimens. 1.166 Section 1.166 Patents, Trademarks, and Copyrights UNITED STATES PATENT AND TRADEMARK OFFICE, DEPARTMENT OF COMMERCE GENERAL RULES OF PRACTICE IN PATENT CASES National Processing Provisions Plant Patents § 1.166 Specimens. The applicant may be required to...

  18. 7 CFR 1427.166 - Insurance.

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ... 7 Agriculture 10 2010-01-01 2010-01-01 false Insurance. 1427.166 Section 1427.166 Agriculture Regulations of the Department of Agriculture (Continued) COMMODITY CREDIT CORPORATION, DEPARTMENT OF AGRICULTURE LOANS, PURCHASES, AND OTHER OPERATIONS COTTON Recourse Seed Cotton Loans § 1427.166 Insurance....

  19. Fluorescent and dynamic properties of optically excited dysprosium trifluoride

    NASA Astrophysics Data System (ADS)

    Xu, Li-Wen; Crosswhite, H. M.; Hessler, Jan P.

    1984-07-01

    Fluorescent, excitation, and absorption spectra of DyF3 are reported. The energies of the electronic states of the ground level are significantly shifted compared to those of the dilute system DyxLa1-xF3 and are consistent with recent specific heat measurements from 5 to 350 K. The fluorescent decay rate K of the (4F9/2)1 state follows the equation K(μs-1)=1.600+0.0307 T(K), where T(K) is the absolute temperature. At 0 K the quantum efficiency is approximately 4.5×10-4. The decay rate is determined by the donor-to-acceptor transfer rate, where an acceptor is a pair of coupled dysprosium ions which deactivate the (4F9/2)1 state. Cross relaxation of the form 4F9/2+6H15/2→6F3/2+6H5/2 is calculated to be the dominant dipole-dipole decay channel. Comparison of high-resolution absorption line shapes, measured above 4.2 K, and below the ferromagnetic transition 2.53 K shows a shift of the line centers, and a reduction, by a factor of 6 in the linewidths. These results are consistent with analogous measurements performed on the Ising antiferromagnet dysprosium aluminum garnet and reflect the short-range order of the system.

  20. Photoelectric and luminescent properties of dysprosium-doped silver chloride

    SciTech Connect

    Novikov, G. F. Rabenok, E. V.; Bocharov, K. V.; Lichkova, N. V.; Ovchinnikov, O. V.; Latyshev, A. N.

    2011-02-15

    The influence of dysprosium doping on the photoelectric and luminescent properties of AgCl crystals is studied by methods of microwave photoconductivity and photoluminescence. Doping affects both the loss kinetics of photogenerated electrons and luminescence spectra and parameters of photostimulated burst of luminescence. It is shown that the charged [Dy{sub Ag}{sup {center_dot}{center_dot}} {center_dot} V Prime {sub Ag}]{sup {center_dot}} or neutral [Dy{sub Ag}{sup {center_dot}{center_dot}} {center_dot} 2V Prime {sub Ag}]{sup x} complexes are responsible for a new luminescence band peaked at 470 nm, which manifests itself at weight concentrations of the doping additive >10{sup -6}%. The long-wavelength shoulder at 570 nm in the photoluminescence spectra is attributed to intracenter transitions in the Dy{sup 3+} ions. The rate constant of the reaction of electron capture into the traps forming upon introduction of the dopant, k{sub t} = (3-5) Multiplication-Sign 10{sup -8} cm{sup 3} s{sup -1}, is evaluated. It is assumed that the traps are Dy{sup 3+} dysprosium ions.

  1. Level density and thermodynamic properties of dysprosium isotopes

    NASA Astrophysics Data System (ADS)

    Nyhus, H. T.; Siem, S.; Guttormsen, M.; Larsen, A. C.; Bürger, A.; Syed, N. U. H.; Toft, H. K.; Tveten, G. M.; Voinov, A.

    2012-01-01

    163,164Dy nuclei have been measured by use of the Oslo method on data from pick-up (3He,α) and inelastic scattering (3He,3He') reactions, respectively. The level densities for these dysprosium isotopes together with previously measured 160-162Dy are extracted in the region below the neutron binding energy. Thermodynamic properties are deduced within both micro-canonical and canonical ensemble theories. A phase transition from the pair-correlated state at low energies to a less correlated or uncorrelated state is studied in both ensembles. It is investigated whether the temperature of the nucleus is constant or a varying function of excitation energy. It is found that above an excitation energy of 3 MeV the temperature of all five dysprosium nuclei have a constant value within the experimental uncertainties. The impact of a constant-temperature level density versus a Fermi gas level density is discussed with respect to the canonical heat capacity.

  2. Measurement and simulation of scattering properties of dysprosium

    NASA Astrophysics Data System (ADS)

    Tang, Yijun; Burdick, Nathaniel; Lev, Benjamin; Sykesy, Andrew; Bohn, John

    2015-05-01

    Ultracold collisions can often be characterized by a single parameter, the s-wave scattering length a, but despite the simplicity of this model, the scattering length a often must be determined experimentally, even for alkali atoms. For highly magnetic lanthanide atoms such as dysprosium (Dy, 10 μB), the dipolar interaction may strongly affect the scattering properties and must also be taken into account. We have characterized the elastic cross-section for scattering between ultracold Dy atoms by measuring the rethermalization rate in a Dy clouds driven out of equilibrium. The experimental data agree well with numerical simulations based on Boltzmann equations that include the dipolar interaction contribution. Our recent work on observations of inelastic dipolar scattering will also be briefly discussed.

  3. Theoretical study of some experimentally relevant states of dysprosium

    SciTech Connect

    Dzuba, V. A.; Flambaum, V. V.

    2010-05-15

    Configuration interaction method is used to calculate transition amplitudes and other properties of the low states of dysprosium which are used in cooling and in the study of the time variation of the fine structure constant and violation of fundamental symmetries. The branching ratio for the cooling state to decay to states other than ground states is found to be smaller than 10{sup -4}. The matrix element of the weak interaction between degenerate states at E=19797.96 cm{sup -1} is about 4 Hz which is consistent with the experimental limit |H{sub W}|=|2.3{+-}2.9(stat.){+-}0.7(syst.)| Hz [A. T. Nguyen, D. Budker, D. DeMille, and M. Zolotorev, Phys. Rev. A 56, 3453 (1997)] and points to feasibility of its experimental measurement. Applications include the search for physics beyond the standard model using the parity nonconservation (PNC) isotopic chain approach.

  4. Dysprosium oxide ceramic arc tube for HID lamps

    NASA Astrophysics Data System (ADS)

    Wei, G. C.; Lapatovich, W. P.; Browne, J.; Snellgrove, R.

    2008-07-01

    Polycrystalline dysprosium oxide is a candidate arc tube material for advanced metal halide lamps because of high transparency, low thermodynamic driving potentials for corrosion and reaction with the salt fills, satisfactory mechanical strength and resistance to thermal shock. This material is cubic and can be polished to achieve higher in-line transmittance than the conventional polycrystalline alumina arc tubes. Rare-earth halide fills, glass frit seals and niobium leads were used in the construction of the Dy2O3 lamps. The experimental lamps exhibited a colour temperature of ~2500 K and CRI of ~90 with rapid warm-up behaviour. The transparent Dy2O3 ceramic offers opportunities to push the limit of ceramic envelopes for improved discharge lamps.

  5. Peptoid-ligated pentadecanuclear yttrium and dysprosium hydroxy clusters.

    PubMed

    Thielemann, Dominique T; Wagner, Anna T; Lan, Yanhua; Oña-Burgos, Pascual; Fernández, Ignacio; Rösch, Esther S; Kölmel, Dominik K; Powell, Annie K; Bräse, Stefan; Roesky, Peter W

    2015-02-01

    A new family of pentadecanuclear coordination cluster compounds (from now on simply referred to as clusters) [{Ln15 (OH)20 (PepCO2 )10 (DBM)10 Cl}Cl4 ] (PepCO2 =2-[{3-(((tert-butoxycarbonyl)amino)methyl)benzyl}amino]acetate, DBM=dibenzoylmethanide) with Ln=Y and Dy was obtained by using the cell-penetrating peptoid (CPPo) monomer PepCO2 H and dibenzoylmethane (DBMH) as supporting ligands. The combination of an inorganic cluster core with an organic cell-penetrating peptoid in the coordination sphere resulted in a core component {Ln15 (μ3 -OH)20 Cl}(24+) (Ln=Y, Dy), which consists of five vertex-sharing heterocubane {Ln4 (μ3 -OH)4 }(8+) units that assemble to give a pentagonal cyclic structure with one Cl atom located in the middle of the pentagon. The solid-state structures of both clusters were established by single-crystal X-ray crystallography. MS (ESI) experiments suggest that the cluster core is robust and maintained in solution. Pulsed gradient spin echo (PGSE) NMR diffusion measurements were carried out on the diamagnetic yttrium compound and confirmed the stability of the cluster in its dicationic form [{Y15 (μ3 -OH)20 (PepCO2 )10 (DBM)10 Cl}Cl2 ](2+) . The investigation of both static (dc) and dynamic (ac) magnetic properties in the dysprosium cluster revealed a slow relaxation of magnetization, indicative of single-molecule magnet (SMM) behavior below 8 K. Furthermore, the χT product as a function of temperature for the dysprosium cluster gave evidence that this is a ferromagnetically coupled compound below 11 K. PMID:25483296

  6. A nine-coordinated dysprosium(III) compound with an oxalate-bridged dysprosium(III) layer exhibiting two slow magnetic relaxation processes.

    PubMed

    Zhang, Sheng; Ke, Hongshan; Liu, Xiangyu; Wei, Qing; Xie, Gang; Chen, Sanping

    2015-10-21

    A 2D oxalate-bridged dysprosium(III) compound, formulated as [Dy(C2O4)1.5(H2O)3]n·2nH2O (1), has been hydrothermally isolated. As for compound 1, structural analysis reveals that the nine-coordinated Dy(III) ions reside in a slightly distorted tricapped trigonal prism. Under an applied magnetic field of 700 Oe, the compound was magnetically characterized as a new example that two slow relaxations of the magnetization processes can be observed in a 2D oxalate-bridged dysprosium(III) layer. PMID:26327427

  7. Direct measurement of dysprosium(III)···dysprosium(III) interactions in a single-molecule magnet.

    PubMed

    Moreno Pineda, Eufemio; Chilton, Nicholas F; Marx, Raphael; Dörfel, María; Sells, Daniel O; Neugebauer, Petr; Jiang, Shang-Da; Collison, David; van Slageren, Joris; McInnes, Eric J L; Winpenny, Richard E P

    2014-01-01

    Lanthanide compounds show much higher energy barriers to magnetic relaxation than 3d-block compounds, and this has led to speculation that they could be used in molecular spintronic devices. Prototype molecular spin valves and molecular transistors have been reported, with remarkable experiments showing the influence of nuclear hyperfine coupling on transport properties. Modelling magnetic data measured on lanthanides is always complicated due to the strong spin-orbit coupling and subtle crystal field effects observed for the 4f-ions; this problem becomes still more challenging when interactions between lanthanide ions are also important. Such interactions have been shown to hinder and enhance magnetic relaxation in different examples, hence understanding their nature is vital. Here we are able to measure directly the interaction between two dysprosium(III) ions through multi-frequency electron paramagnetic resonance spectroscopy and other techniques, and explain how this influences the dynamic magnetic behaviour of the system. PMID:25308160

  8. 21 CFR 211.166 - Stability testing.

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ... 21 Food and Drugs 4 2011-04-01 2011-04-01 false Stability testing. 211.166 Section 211.166 Food and Drugs FOOD AND DRUG ADMINISTRATION, DEPARTMENT OF HEALTH AND HUMAN SERVICES (CONTINUED) DRUGS: GENERAL CURRENT GOOD MANUFACTURING PRACTICE FOR FINISHED PHARMACEUTICALS Laboratory Controls §...

  9. 9 CFR 166.10 - Licensing.

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ... 9 Animals and Animal Products 1 2010-01-01 2010-01-01 false Licensing. 166.10 Section 166.10 Animals and Animal Products ANIMAL AND PLANT HEALTH INSPECTION SERVICE, DEPARTMENT OF AGRICULTURE SWINE... Veterinarian in Charge or, in States with primary enforcement responsibility, by the State animal...

  10. 9 CFR 166.2 - General restrictions.

    Code of Federal Regulations, 2011 CFR

    2011-01-01

    ... 9 Animals and Animal Products 1 2011-01-01 2011-01-01 false General restrictions. 166.2 Section 166.2 Animals and Animal Products ANIMAL AND PLANT HEALTH INSPECTION SERVICE, DEPARTMENT OF... to the treatment of garbage that is to be fed to swine or the feeding thereof which are...

  11. 9 CFR 166.2 - General restrictions.

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ... 9 Animals and Animal Products 1 2010-01-01 2010-01-01 false General restrictions. 166.2 Section 166.2 Animals and Animal Products ANIMAL AND PLANT HEALTH INSPECTION SERVICE, DEPARTMENT OF... to the treatment of garbage that is to be fed to swine or the feeding thereof which are...

  12. 9 CFR 166.10 - Licensing.

    Code of Federal Regulations, 2011 CFR

    2011-01-01

    ... 9 Animals and Animal Products 1 2011-01-01 2011-01-01 false Licensing. 166.10 Section 166.10 Animals and Animal Products ANIMAL AND PLANT HEALTH INSPECTION SERVICE, DEPARTMENT OF AGRICULTURE SWINE... Veterinarian in Charge or, in States with primary enforcement responsibility, by the State animal...

  13. 9 CFR 166.15 - State status.

    Code of Federal Regulations, 2011 CFR

    2011-01-01

    ... garbage to swine. Editorial Note: For Federal Register citations affecting § 166.15, see the List of CFR... Animals and Animal Products ANIMAL AND PLANT HEALTH INSPECTION SERVICE, DEPARTMENT OF AGRICULTURE SWINE HEALTH PROTECTION SWINE HEALTH PROTECTION General Provisions § 166.15 State status. (a) The...

  14. 9 CFR 166.15 - State status.

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ... garbage to swine. Editorial Note: For Federal Register citations affecting § 166.15, see the List of CFR... Animals and Animal Products ANIMAL AND PLANT HEALTH INSPECTION SERVICE, DEPARTMENT OF AGRICULTURE SWINE HEALTH PROTECTION SWINE HEALTH PROTECTION General Provisions § 166.15 State status. (a) The...

  15. 9 CFR 166.15 - State status.

    Code of Federal Regulations, 2013 CFR

    2013-01-01

    ... garbage to swine. Editorial Note: For Federal Register citations affecting § 166.15, see the List of CFR... Animals and Animal Products ANIMAL AND PLANT HEALTH INSPECTION SERVICE, DEPARTMENT OF AGRICULTURE SWINE HEALTH PROTECTION SWINE HEALTH PROTECTION General Provisions § 166.15 State status. (a) The...

  16. 9 CFR 166.15 - State status.

    Code of Federal Regulations, 2012 CFR

    2012-01-01

    ... garbage to swine. Editorial Note: For Federal Register citations affecting § 166.15, see the List of CFR... Animals and Animal Products ANIMAL AND PLANT HEALTH INSPECTION SERVICE, DEPARTMENT OF AGRICULTURE SWINE HEALTH PROTECTION SWINE HEALTH PROTECTION General Provisions § 166.15 State status. (a) The...

  17. 9 CFR 166.15 - State status.

    Code of Federal Regulations, 2014 CFR

    2014-01-01

    ... garbage to swine. Editorial Note: For Federal Register citations affecting § 166.15, see the List of CFR... Animals and Animal Products ANIMAL AND PLANT HEALTH INSPECTION SERVICE, DEPARTMENT OF AGRICULTURE SWINE HEALTH PROTECTION SWINE HEALTH PROTECTION General Provisions § 166.15 State status. (a) The...

  18. 40 CFR 166.41 - Limitations.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... 40 Protection of Environment 24 2011-07-01 2011-07-01 false Limitations. 166.41 Section 166.41 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) PESTICIDE PROGRAMS EXEMPTION OF FEDERAL... Limitations. The crisis provisions may not be utilized to authorize a pesticide use if any of the...

  19. 40 CFR 166.41 - Limitations.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 40 Protection of Environment 23 2010-07-01 2010-07-01 false Limitations. 166.41 Section 166.41 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) PESTICIDE PROGRAMS EXEMPTION OF FEDERAL... Limitations. The crisis provisions may not be utilized to authorize a pesticide use if any of the...

  20. 32 CFR 552.166 - Recreational use.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... NATIONAL CEMETERIES REGULATIONS AFFECTING MILITARY RESERVATIONS Land Use Policy for Fort Lewis, Yakima Training Center, and Camp Bonneville § 552.166 Recreational use. (a) Fort Lewis: (1) Individuals or... 32 National Defense 3 2010-07-01 2010-07-01 true Recreational use. 552.166 Section...

  1. 32 CFR 552.166 - Recreational use.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... NATIONAL CEMETERIES REGULATIONS AFFECTING MILITARY RESERVATIONS Land Use Policy for Fort Lewis, Yakima Training Center, and Camp Bonneville § 552.166 Recreational use. (a) Fort Lewis: (1) Individuals or... 32 National Defense 3 2011-07-01 2009-07-01 true Recreational use. 552.166 Section...

  2. 32 CFR 552.166 - Recreational use.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... NATIONAL CEMETERIES REGULATIONS AFFECTING MILITARY RESERVATIONS Land Use Policy for Fort Lewis, Yakima Training Center, and Camp Bonneville § 552.166 Recreational use. (a) Fort Lewis: (1) Individuals or... 32 National Defense 3 2012-07-01 2009-07-01 true Recreational use. 552.166 Section...

  3. 32 CFR 552.166 - Recreational use.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... NATIONAL CEMETERIES REGULATIONS AFFECTING MILITARY RESERVATIONS Land Use Policy for Fort Lewis, Yakima Training Center, and Camp Bonneville § 552.166 Recreational use. (a) Fort Lewis: (1) Individuals or... 32 National Defense 3 2014-07-01 2014-07-01 false Recreational use. 552.166 Section...

  4. 32 CFR 552.166 - Recreational use.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... NATIONAL CEMETERIES REGULATIONS AFFECTING MILITARY RESERVATIONS Land Use Policy for Fort Lewis, Yakima Training Center, and Camp Bonneville § 552.166 Recreational use. (a) Fort Lewis: (1) Individuals or... 32 National Defense 3 2013-07-01 2013-07-01 false Recreational use. 552.166 Section...

  5. 9 CFR 381.166 - Breaded products.

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ... 9 Animals and Animal Products 2 2010-01-01 2010-01-01 false Breaded products. 381.166 Section 381.166 Animals and Animal Products FOOD SAFETY AND INSPECTION SERVICE, DEPARTMENT OF AGRICULTURE AGENCY ORGANIZATION AND TERMINOLOGY; MANDATORY MEAT AND POULTRY PRODUCTS INSPECTION AND VOLUNTARY INSPECTION...

  6. 40 CFR 166.25 - Agency review.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... 40 Protection of Environment 25 2012-07-01 2012-07-01 false Agency review. 166.25 Section 166.25 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) PESTICIDE PROGRAMS EXEMPTION OF FEDERAL AND STATE AGENCIES FOR USE OF PESTICIDES UNDER EMERGENCY CONDITIONS Specific, Quarantine, and...

  7. 40 CFR 166.25 - Agency review.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 40 Protection of Environment 23 2010-07-01 2010-07-01 false Agency review. 166.25 Section 166.25 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) PESTICIDE PROGRAMS EXEMPTION OF FEDERAL AND STATE AGENCIES FOR USE OF PESTICIDES UNDER EMERGENCY CONDITIONS Specific, Quarantine, and...

  8. 40 CFR 166.25 - Agency review.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... 40 Protection of Environment 25 2013-07-01 2013-07-01 false Agency review. 166.25 Section 166.25 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) PESTICIDE PROGRAMS EXEMPTION OF FEDERAL AND STATE AGENCIES FOR USE OF PESTICIDES UNDER EMERGENCY CONDITIONS Specific, Quarantine, and...

  9. 40 CFR 721.9511 - Silicic acid (H6SiO2O7), magnesium, strontium salt(1:1:2), dysprosium and europium-doped.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ..., strontium salt(1:1:2), dysprosium and europium-doped. 721.9511 Section 721.9511 Protection of Environment...), magnesium, strontium salt(1:1:2), dysprosium and europium-doped. (a) Chemical substance and significant new..., strontium salt(1:1:2), dysprosium and europium-doped. (PMN P-98-848; CAS No.181828-07-9) is subject...

  10. 40 CFR 721.9511 - Silicic acid (H6SiO2O7), magnesium, strontium salt(1:1:2), dysprosium and europium-doped.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ..., strontium salt(1:1:2), dysprosium and europium-doped. 721.9511 Section 721.9511 Protection of Environment...), magnesium, strontium salt(1:1:2), dysprosium and europium-doped. (a) Chemical substance and significant new..., strontium salt(1:1:2), dysprosium and europium-doped. (PMN P-98-848; CAS No.181828-07-9) is subject...

  11. 40 CFR 721.9511 - Silicic acid (H6SiO2O7), magnesium, strontium salt(1:1:2), dysprosium and europium-doped.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ..., strontium salt(1:1:2), dysprosium and europium-doped. 721.9511 Section 721.9511 Protection of Environment...), magnesium, strontium salt(1:1:2), dysprosium and europium-doped. (a) Chemical substance and significant new..., strontium salt(1:1:2), dysprosium and europium-doped. (PMN P-98-848; CAS No.181828-07-9) is subject...

  12. 40 CFR 721.9511 - Silicic acid (H6SiO2O7), magnesium, strontium salt(1:1:2), dysprosium and europium-doped.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ..., strontium salt(1:1:2), dysprosium and europium-doped. 721.9511 Section 721.9511 Protection of Environment...), magnesium, strontium salt(1:1:2), dysprosium and europium-doped. (a) Chemical substance and significant new..., strontium salt(1:1:2), dysprosium and europium-doped. (PMN P-98-848; CAS No.181828-07-9) is subject...

  13. Dysprosium detector for neutron dosimetry in external beam radiotherapy

    NASA Astrophysics Data System (ADS)

    Ostinelli, A.; Berlusconi, C.; Conti, V.; Duchini, M.; Gelosa, S.; Guallini, F.; Vallazza, E.; Prest, M.

    2014-09-01

    Radiotherapy treatments with high-energy (>8 MeV) photon beams are a standard procedure in clinical practice, given the skin and near-target volumes sparing effect, the accurate penetration and the uniform spatial dose distribution. On the other hand, despite these advantages, neutrons may be produced via the photo-nuclear (γ,n) reactions of the high-energy photons with the high-Z materials in the accelerator head, in the treatment room and in the patient, resulting in an unwanted dose contribution which is of concern, given its potential to induce secondary cancers, and which has to be monitored. This work presents the design and the test of a portable Dysprosium dosimeter to be used during clinical treatments to estimate the "in vivo" dose to the patient. The dosimeter has been characterized and validated with tissue-equivalent phantom studies with a Varian Clinical iX 18 MV photon beam, before using it with a group of patients treated at the S. Anna Hospital in Como. The working principle of the dosimeter together with the readout chain and the results in terms of delivered dose are presented.

  14. Anomalous Elastic Behavior in hcp- and Sm-Type Dysprosium

    SciTech Connect

    Tschauner, Oliver; Grubor-Urosevic, Ognjen; Dera, Przemyslaw; Mulcahy, Sean R.

    2012-04-11

    The compression behavior of elemental dysprosium in the hcp- and the Sm-type phases has been examined under hydrostatic pressure. Sm-type Dy has been found about 1% denser than the hcp phase. This increase in density is due to c-axis contraction in Sm-type Dy, whereas the a-axis even expands compared with the hcp-phase. Both the hcp- and the Sm-type phases show an inversion in the pressure derivative of the c/a ratio. For hcp-Dy this inversion is very sharp with minimal c/a at 2.5 GPa. At the same pressure, the compression behavior of hcp-Dy changes abruptly from dominantly c-axis compression to almost isotropic compression with slightly softer S{sub 11}. The bulk modulus increases at this point by a factor of {approx}2. Both hcp- and Sm-type Dy exhibit a crossover from highly anisotropic compression mostly along the c-axis to almost isotropic compression. We discuss these anomalies with respect to a possible Lifshitz transition and structural soft modes.

  15. Exploring the magnetic phase diagram of dysprosium with neutron diffraction

    NASA Astrophysics Data System (ADS)

    Yu, J.; LeClair, P. R.; Mankey, G. J.; Robertson, J. L.; Crow, M. L.; Tian, W.

    2015-01-01

    With one of the highest intrinsic magnetic moments (10.6 μB/atom ) among the heavy rare-earth elements, dysprosium exhibits a rich magnetic phase diagram, including several modulated magnetic phases. Aided by the Ruderman-Kittel-Kasuya-Yosida interaction, the magnetic modulations propagate coherently over a long range. Neutron diffraction experiments were performed to determine the microscopic magnetic origin of the field induced phases in bulk Dy as a function of temperature, covering regions of the well-known ferromagnetic, helical antiferromagnetic, fan phases, and several possible new phases suggested by previous studies. A short-range ordered fan phase was identified as the intermediate state between ferromagnetism and long-range ordered fan. In a field of 1 T applied along the a axis, the temperature range of a coexisting helix/fan phase was determined. The magnetic phase diagram of Dy was thus refined to include the detailed magnetic origin and the associated phase boundaries. Based on the period of the magnetic modulation and the average magnetization, the evolution of the spin arrangement upon heating was derived quantitatively for the modulated magnetic phases.

  16. Molecular beam epitaxy growth and characterization of dysprosium phosphide and dysprosium arsenide in gallium arsenide and gallium phosphide

    NASA Astrophysics Data System (ADS)

    Lee, Paul Piyawong

    The ability to grow thermally stable Schottky/ohmic contacts and buried, epitaxial metallic or semimetallic layers on semiconductors has many potential applications in novel device structures. Many rare earth group-V compounds with the sodium chloride structure possess the properties that make them potential candidates for stable contacts, buried layers, and other applications. In this work, two novel rare earth compounds, namely dysprosium phosphide (DyP) and dysprosium arsenide (DyAs) have been studied for high temperature ohmic/Schottky contacts to III-V semiconductors as well as for buried metal layers in semiconductor/metal/semiconductor structures. DyP and DyAs have been grown by molecular beam epitaxy on GaAs and GaP substrates. Both DyP and DyAs display metallic behavior and have room temperature resistivities of 8 x 10--5 and 1 x 10--4 Ocm, respectively. The electron concentrations for DyP and DyAs are about 4 x 1020 and 1 x 1021 cm--3, respectively. High quality DyP films as determined by XRD, AFM, and TEM can be achieved at a wide range of substrate temperatures (500°C to 600°C) with excess phosphorus pressure. Unlike most rare earth-group V compounds, DyP films are stable in air with no sign of oxidation. DyP films deposited on n-type GaAs and GaP exhibit Schottky behavior with room temperature barrier heights of 0.83 and 0.90 eV, respectively, with ideality factors close to unity and low reverse bias leakage current densities. These contacts are stable up to 250°C and 350°C for GaAs and GaP, respectively. DyAs films on the other hand, oxidize in air and display weak Schottky behavior on n-type GaAs. DyP has been grown as buried layers in both GaAs/DyP/GaAs and GaAs/DyP/GaP structures. Although high quality DyP layers have been achieved, the GaAs overlayers contain defects such as twins. The poor wetting of GaAs on DyP and the crystal symmetry between the two materials are responsible for the three-dimensional growth and the defects found in the Ga

  17. 27 CFR 19.166 - Major equipment.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ... OF THE TREASURY LIQUORS DISTILLED SPIRITS PLANTS Qualification of Distilled Spirits Plants § 19.166... statement of certification of accurate calibration shall be included in the description of tanks that are...

  18. 40 CFR 166.40 - Authorization.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... AND STATE AGENCIES FOR USE OF PESTICIDES UNDER EMERGENCY CONDITIONS Crisis Exemptions § 166.40... issue a crisis exemption in situations involving an unpredictable emergency situation when: (a)...

  19. A Low-Symmetry Dysprosium Metallocene Single-Molecule Magnet with a High Anisotropy Barrier.

    PubMed

    Pugh, Thomas; Chilton, Nicholas F; Layfield, Richard A

    2016-09-01

    The single-molecule magnet (SMM) properties of the isocarbonyl-ligated dysprosium metallocene [Cp*2 Dy{μ-(OC)2 FeCp}]2 (1Dy ), which contains a rhombus-shaped Dy2 Fe2 core, are described. Combining a strong axial [Cp*](-) ligand field with a weak equatorial field consisting of the isocarbonyl ligands leads to an anisotropy barrier of 662 cm(-1) in zero applied field. The dominant thermal relaxation pathways in 1Dy involves at least the fourth-excited Kramers doublet, thus demonstrating that prominent SMM behavior can be observed for dysprosium in low-symmetry environments. PMID:27460170

  20. Exploration of dysprosium: the most critical element for Japan

    NASA Astrophysics Data System (ADS)

    Watanabe, Y.

    2012-04-01

    Dysprosium (Dy), one of the heavy rare earth elements, is used mainly as an additive for NdFeB permanent magnets which are installed in various modern industrial products such as voice coil motors in computers, factory automation machinery, hybrid and electric vehicles, home electronics, and wind turbine, to improve heat resistance of the magnets. Dy has been produced about 2,000t per year from the ores from ion adsorption type deposits in southern China. However, the produced amount of Dy was significantly reduced in 2011 in China due to reservation of heavy rare earth resources and protection of natural environment, resulting in soaring of Dy price in the world. In order to respond the increasing demand of Dy, unconventional supply sources are inevitably developed, in addition to heavy rare earth enriched ion adsorption type deposits outside China. Heavy rare earth elements including Dy are dominantly hosted in xenotime, fergusonite, zircon, eudialyte, keiviite, kainosite, iimoriite, etc. Concentration of xenotime is found in placer deposits in Malaysia and India, hydrothermal deposits associated with unconformity-type uranium mineralization (Athabasca basin in Canada, Western Australia), iron-oxide fluorite mineralization (South Africa) and Sn-bearing alkaline granite (Brazil). Zircon and fergusontie concentration is found as igneous and hydrothermal products in peralkaline syenite, alkaline granite and pegmatite (e.g., Nechalacho in Canada). Eudialyte concentration is found in some peralkaline syenite bodies in Greenland, Canada, Sweden and Russia. Among these sources, large Dy resources are estimated in the deposits hosted in peralkaline rocks (Nechalacho: 79,000t, Kvanefjeld: 49,000t, Norra Karr: 15,700t, etc.) compared to the present demand of Dy. Thus, Dy will be supplied from the deposits associated with peralkaline and alkaline deposits in future instead of ion adsorption type deposits in southern China.

  1. Dosimetric properties of dysprosium doped lithium borate glass irradiated by 6 MV photons

    NASA Astrophysics Data System (ADS)

    Ab Rasid, A.; Wagiran, H.; Hashim, S.; Ibrahim, Z.; Ali, H.

    2015-07-01

    Undoped and dysprosium doped lithium borate glass system with empirical formula (70-x) B2O3-30 Li2O-(x) Dy2O3 (x=0.1, 0.3, 0.5, 0.7, 1.0 mol%) were prepared using the melt-quenching technique. The dosimetric measurements were performed by irradiating the samples to 6 MV photon beam using linear accelerator (LINAC) over a dose range of 0.5-5.0 Gy. The glass series of dysprosium doped lithium borate glass produced the best thermoluminescence (TL) glow curve with the highest intensity peak from sample with 1.0 mol% Dy2O3 concentration. Minimum detectable dose was detected at 2.24 mGy, good linearity of regression coefficient, high reproducibility and high sensitivity compared to the undoped glass are from 1.0 mol% dysprosium doped lithium borate glass. The results indicated that the series of dysprosium doped lithium glasses have a great potential to be considered as a thermoluminescence dosimetry (TLD).

  2. Observation of an intermediate phase in dysprosium near the Neel point by neutron diffraction

    SciTech Connect

    Bessergenev, V.G.; Gogava, V.V.; Kovalevskaya, Y.A.; Mandzhavidze, A.G.; Fedorov, V.M.; Shilo, S.I.

    1985-11-25

    The magnetic structure of dysprosium near the point of magnetic disordering has been studied as a function of the thermal history of the sample by neutron diffraction. An intermediate vortex phase appears during cooling from the paramagnetic phase and then converts into a helicoidal phase.

  3. 40 CFR 49.166 - Program overview.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... areas in Indian country (or “program”) consists of §§ 49.166 through 49.175. (b) What is the purpose of this program? This program has the following purposes: (1) It establishes a preconstruction permitting... major sources subject to this program comply with the provisions and requirements of part 51, Appendix...

  4. 40 CFR 49.166 - Program overview.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... areas in Indian country (or “program”) consists of §§ 49.166 through 49.175. (b) What is the purpose of this program? This program has the following purposes: (1) It establishes a preconstruction permitting... major sources subject to this program comply with the provisions and requirements of part 51, Appendix...

  5. 40 CFR 49.166 - Program overview.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... areas in Indian country (or “program”) consists of §§ 49.166 through 49.175. (b) What is the purpose of this program? This program has the following purposes: (1) It establishes a preconstruction permitting... major sources subject to this program comply with the provisions and requirements of part 51, appendix...

  6. 40 CFR 49.166 - Program overview.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... areas in Indian country (or “program”) consists of §§ 49.166 through 49.175. (b) What is the purpose of this program? This program has the following purposes: (1) It establishes a preconstruction permitting... major sources subject to this program comply with the provisions and requirements of part 51, Appendix...

  7. 9 CFR 166.10 - Licensing.

    Code of Federal Regulations, 2013 CFR

    2013-01-01

    ... Animals and Animal Products ANIMAL AND PLANT HEALTH INSPECTION SERVICE, DEPARTMENT OF AGRICULTURE SWINE HEALTH PROTECTION SWINE HEALTH PROTECTION General Provisions § 166.10 Licensing. (a) Application. Any... swine shall apply for a license on a form which will be furnished, upon request, by the...

  8. 9 CFR 166.2 - General restrictions.

    Code of Federal Regulations, 2014 CFR

    2014-01-01

    ... AGRICULTURE SWINE HEALTH PROTECTION SWINE HEALTH PROTECTION General Provisions § 166.2 General restrictions. (a) No person shall feed or permit the feeding of garbage to swine unless the garbage is treated to... to the feeding or the permitting of the feeding to swine of garbage only because the garbage...

  9. 9 CFR 166.10 - Licensing.

    Code of Federal Regulations, 2012 CFR

    2012-01-01

    ... Animals and Animal Products ANIMAL AND PLANT HEALTH INSPECTION SERVICE, DEPARTMENT OF AGRICULTURE SWINE HEALTH PROTECTION SWINE HEALTH PROTECTION General Provisions § 166.10 Licensing. (a) Application. Any... swine shall apply for a license on a form which will be furnished, upon request, by the...

  10. 9 CFR 166.10 - Licensing.

    Code of Federal Regulations, 2014 CFR

    2014-01-01

    ... Animals and Animal Products ANIMAL AND PLANT HEALTH INSPECTION SERVICE, DEPARTMENT OF AGRICULTURE SWINE HEALTH PROTECTION SWINE HEALTH PROTECTION General Provisions § 166.10 Licensing. (a) Application. Any... swine shall apply for a license on a form which will be furnished, upon request, by the...

  11. 9 CFR 166.2 - General restrictions.

    Code of Federal Regulations, 2013 CFR

    2013-01-01

    ... AGRICULTURE SWINE HEALTH PROTECTION SWINE HEALTH PROTECTION General Provisions § 166.2 General restrictions. (a) No person shall feed or permit the feeding of garbage to swine unless the garbage is treated to... to the feeding or the permitting of the feeding to swine of garbage only because the garbage...

  12. 9 CFR 166.2 - General restrictions.

    Code of Federal Regulations, 2012 CFR

    2012-01-01

    ... AGRICULTURE SWINE HEALTH PROTECTION SWINE HEALTH PROTECTION General Provisions § 166.2 General restrictions. (a) No person shall feed or permit the feeding of garbage to swine unless the garbage is treated to... to the feeding or the permitting of the feeding to swine of garbage only because the garbage...

  13. 37 CFR 1.166 - Specimens.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... COMMERCE GENERAL RULES OF PRACTICE IN PATENT CASES National Processing Provisions Plant Patents § 1.166 Specimens. The applicant may be required to furnish specimens of the plant, or its flower or fruit, in a quantity and at a time in its stage of growth as may be designated, for study and inspection....

  14. 37 CFR 1.166 - Specimens.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... COMMERCE GENERAL RULES OF PRACTICE IN PATENT CASES National Processing Provisions Plant Patents § 1.166 Specimens. The applicant may be required to furnish specimens of the plant, or its flower or fruit, in a quantity and at a time in its stage of growth as may be designated, for study and inspection....

  15. Dysprosium-Catalyzed Growth of Single-Walled Carbon Nanotube Arrays on Substrates

    PubMed Central

    2010-01-01

    In this letter, we report that dysprosium is an effective catalyst for single-walled carbon nanotubes (SWNTs) growth via a chemical vapor deposition (CVD) process for the first time. Horizontally superlong well-oriented SWNT arrays on SiO2/Si wafer can be fabricated by EtOH-CVD under suitable conditions. The structure and properties are characterized by scanning electron microscopy, transition electron microscopy, Raman spectroscopy and atomic force microscopy. The results show that the SWNTs from dysprosium have better structural uniformity and better conductivity with fewer defects. This rare earth metal provides not only an alternative catalyst for SWNTs growth, but also a possible method to generate high percentage of superlong semiconducting SWNT arrays for various applications of nanoelectronic device. PMID:20672139

  16. Technique for direct measurement of magnetic entropy of solids: Results for dysprosium titanium oxide

    NASA Technical Reports Server (NTRS)

    Flood, D. J.

    1974-01-01

    A measurement technique was devised which permits direct observation of the magnetic entropy of solids as a function of applied magnetic field. Measurements were made of the magnetic entropy, in the temperature range 2 to 20 K, of polycrystalline samples of dysprosium titanium oxide (Dy2Ti2O7) to determine its suitability for use as the working substance of a magnetic refrigerator. Magnetization measurements were also made at 4.2 K and below to provide additional information on the nature of the compound. The measurements indicated that crystalline electric fields perturbed the ground state of the dysprosium ions, removed the 16-fold degeneracy predicted by Hund's rules, and left only a twofold degeneracy in its place. A positive, temperature independent contribution to the magnetization was observed in the saturation region, which indicated that the doublet ground-state wave function was perturbed by a nearby unpopulated upper energy level.

  17. Determination of dysprosium by resonance light scattering technique in the presence of BPMPHD

    NASA Astrophysics Data System (ADS)

    Sun, Shuna; Wu, Xia; Yang, Jinghe; Li, Lei; Wang, Yuebo

    2004-01-01

    Dysprosium has been determined by resonance light scattering (RLS) method in the presence of 1,6-bi(1'-phenyl-3'-methyl-5'-pyrazolone-4'-)hexanedione (BPMPHD) at pH 5.5. The Dy-BPMPHD system has three characteristic peaks at 358, 399 and 450 nm, especially the peak at 358 nm, which is proportional to the concentration of Dy 3+ in the range of 1.0×10 -10-1.0×10 -5 mol l -1. The detection limit (S/N=2) is 5.6×10 -12 mol l -1. Synthetic samples are determined satisfactorily. A new sensitive method for detection of dysprosium has been proposed.

  18. 17 CFR 166.5 - Dispute settlement procedures.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ... maintain an account with . See 17 CFR 166.5. (d) Enforceability. A dispute settlement procedure may require.... 166.5 Section 166.5 Commodity and Securities Exchanges COMMODITY FUTURES TRADING COMMISSION CUSTOMER... delivery or commodity option. (2) The term customer as used in this section includes an option customer...

  19. 25 CFR 166.305 - When is grazing capacity determined?

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ... 25 Indians 1 2010-04-01 2010-04-01 false When is grazing capacity determined? 166.305 Section 166.305 Indians BUREAU OF INDIAN AFFAIRS, DEPARTMENT OF THE INTERIOR LAND AND WATER GRAZING PERMITS Land and Operations Management § 166.305 When is grazing capacity determined? Before we grant, modify,...

  20. 21 CFR 166.40 - Labeling of margarine.

    Code of Federal Regulations, 2013 CFR

    2013-04-01

    ... 21 Food and Drugs 2 2013-04-01 2013-04-01 false Labeling of margarine. 166.40 Section 166.40 Food and Drugs FOOD AND DRUG ADMINISTRATION, DEPARTMENT OF HEALTH AND HUMAN SERVICES (CONTINUED) FOOD FOR HUMAN CONSUMPTION MARGARINE General Provisions § 166.40 Labeling of margarine. The Federal Food, Drug, and Cosmetic Act was amended by Pub. L....

  1. 21 CFR 166.40 - Labeling of margarine.

    Code of Federal Regulations, 2012 CFR

    2012-04-01

    ... 21 Food and Drugs 2 2012-04-01 2012-04-01 false Labeling of margarine. 166.40 Section 166.40 Food and Drugs FOOD AND DRUG ADMINISTRATION, DEPARTMENT OF HEALTH AND HUMAN SERVICES (CONTINUED) FOOD FOR HUMAN CONSUMPTION MARGARINE General Provisions § 166.40 Labeling of margarine. The Federal Food,...

  2. 9 CFR 166.4 - Storage of garbage.

    Code of Federal Regulations, 2014 CFR

    2014-01-01

    ... 9 Animals and Animal Products 1 2014-01-01 2014-01-01 false Storage of garbage. 166.4 Section 166.4 Animals and Animal Products ANIMAL AND PLANT HEALTH INSPECTION SERVICE, DEPARTMENT OF AGRICULTURE SWINE HEALTH PROTECTION SWINE HEALTH PROTECTION General Provisions § 166.4 Storage of garbage....

  3. 9 CFR 166.4 - Storage of garbage.

    Code of Federal Regulations, 2012 CFR

    2012-01-01

    ... 9 Animals and Animal Products 1 2012-01-01 2012-01-01 false Storage of garbage. 166.4 Section 166.4 Animals and Animal Products ANIMAL AND PLANT HEALTH INSPECTION SERVICE, DEPARTMENT OF AGRICULTURE SWINE HEALTH PROTECTION SWINE HEALTH PROTECTION General Provisions § 166.4 Storage of garbage....

  4. 9 CFR 166.8 - Vehicles used to transport garbage.

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ... 9 Animals and Animal Products 1 2010-01-01 2010-01-01 false Vehicles used to transport garbage. 166.8 Section 166.8 Animals and Animal Products ANIMAL AND PLANT HEALTH INSPECTION SERVICE, DEPARTMENT OF AGRICULTURE SWINE HEALTH PROTECTION SWINE HEALTH PROTECTION General Provisions § 166.8...

  5. 9 CFR 166.12 - Cancellation of licenses.

    Code of Federal Regulations, 2012 CFR

    2012-01-01

    ... 9 Animals and Animal Products 1 2012-01-01 2012-01-01 false Cancellation of licenses. 166.12 Section 166.12 Animals and Animal Products ANIMAL AND PLANT HEALTH INSPECTION SERVICE, DEPARTMENT OF AGRICULTURE SWINE HEALTH PROTECTION SWINE HEALTH PROTECTION General Provisions § 166.12 Cancellation...

  6. 9 CFR 166.4 - Storage of garbage.

    Code of Federal Regulations, 2011 CFR

    2011-01-01

    ... 9 Animals and Animal Products 1 2011-01-01 2011-01-01 false Storage of garbage. 166.4 Section 166.4 Animals and Animal Products ANIMAL AND PLANT HEALTH INSPECTION SERVICE, DEPARTMENT OF AGRICULTURE SWINE HEALTH PROTECTION SWINE HEALTH PROTECTION General Provisions § 166.4 Storage of garbage....

  7. 9 CFR 166.12 - Cancellation of licenses.

    Code of Federal Regulations, 2014 CFR

    2014-01-01

    ... 9 Animals and Animal Products 1 2014-01-01 2014-01-01 false Cancellation of licenses. 166.12 Section 166.12 Animals and Animal Products ANIMAL AND PLANT HEALTH INSPECTION SERVICE, DEPARTMENT OF AGRICULTURE SWINE HEALTH PROTECTION SWINE HEALTH PROTECTION General Provisions § 166.12 Cancellation...

  8. 9 CFR 166.8 - Vehicles used to transport garbage.

    Code of Federal Regulations, 2013 CFR

    2013-01-01

    ... 9 Animals and Animal Products 1 2013-01-01 2013-01-01 false Vehicles used to transport garbage. 166.8 Section 166.8 Animals and Animal Products ANIMAL AND PLANT HEALTH INSPECTION SERVICE, DEPARTMENT OF AGRICULTURE SWINE HEALTH PROTECTION SWINE HEALTH PROTECTION General Provisions § 166.8...

  9. 9 CFR 166.4 - Storage of garbage.

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ... 9 Animals and Animal Products 1 2010-01-01 2010-01-01 false Storage of garbage. 166.4 Section 166.4 Animals and Animal Products ANIMAL AND PLANT HEALTH INSPECTION SERVICE, DEPARTMENT OF AGRICULTURE SWINE HEALTH PROTECTION SWINE HEALTH PROTECTION General Provisions § 166.4 Storage of garbage....

  10. 9 CFR 166.8 - Vehicles used to transport garbage.

    Code of Federal Regulations, 2012 CFR

    2012-01-01

    ... 9 Animals and Animal Products 1 2012-01-01 2012-01-01 false Vehicles used to transport garbage. 166.8 Section 166.8 Animals and Animal Products ANIMAL AND PLANT HEALTH INSPECTION SERVICE, DEPARTMENT OF AGRICULTURE SWINE HEALTH PROTECTION SWINE HEALTH PROTECTION General Provisions § 166.8...

  11. 9 CFR 166.12 - Cancellation of licenses.

    Code of Federal Regulations, 2011 CFR

    2011-01-01

    ... 9 Animals and Animal Products 1 2011-01-01 2011-01-01 false Cancellation of licenses. 166.12 Section 166.12 Animals and Animal Products ANIMAL AND PLANT HEALTH INSPECTION SERVICE, DEPARTMENT OF AGRICULTURE SWINE HEALTH PROTECTION SWINE HEALTH PROTECTION General Provisions § 166.12 Cancellation...

  12. 9 CFR 166.12 - Cancellation of licenses.

    Code of Federal Regulations, 2013 CFR

    2013-01-01

    ... 9 Animals and Animal Products 1 2013-01-01 2013-01-01 false Cancellation of licenses. 166.12 Section 166.12 Animals and Animal Products ANIMAL AND PLANT HEALTH INSPECTION SERVICE, DEPARTMENT OF AGRICULTURE SWINE HEALTH PROTECTION SWINE HEALTH PROTECTION General Provisions § 166.12 Cancellation...

  13. 9 CFR 166.8 - Vehicles used to transport garbage.

    Code of Federal Regulations, 2014 CFR

    2014-01-01

    ... 9 Animals and Animal Products 1 2014-01-01 2014-01-01 false Vehicles used to transport garbage. 166.8 Section 166.8 Animals and Animal Products ANIMAL AND PLANT HEALTH INSPECTION SERVICE, DEPARTMENT OF AGRICULTURE SWINE HEALTH PROTECTION SWINE HEALTH PROTECTION General Provisions § 166.8...

  14. 9 CFR 166.12 - Cancellation of licenses.

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ... 9 Animals and Animal Products 1 2010-01-01 2010-01-01 false Cancellation of licenses. 166.12 Section 166.12 Animals and Animal Products ANIMAL AND PLANT HEALTH INSPECTION SERVICE, DEPARTMENT OF AGRICULTURE SWINE HEALTH PROTECTION SWINE HEALTH PROTECTION General Provisions § 166.12 Cancellation...

  15. 9 CFR 166.8 - Vehicles used to transport garbage.

    Code of Federal Regulations, 2011 CFR

    2011-01-01

    ... 9 Animals and Animal Products 1 2011-01-01 2011-01-01 false Vehicles used to transport garbage. 166.8 Section 166.8 Animals and Animal Products ANIMAL AND PLANT HEALTH INSPECTION SERVICE, DEPARTMENT OF AGRICULTURE SWINE HEALTH PROTECTION SWINE HEALTH PROTECTION General Provisions § 166.8...

  16. 9 CFR 166.4 - Storage of garbage.

    Code of Federal Regulations, 2013 CFR

    2013-01-01

    ... 9 Animals and Animal Products 1 2013-01-01 2013-01-01 false Storage of garbage. 166.4 Section 166.4 Animals and Animal Products ANIMAL AND PLANT HEALTH INSPECTION SERVICE, DEPARTMENT OF AGRICULTURE SWINE HEALTH PROTECTION SWINE HEALTH PROTECTION General Provisions § 166.4 Storage of garbage....

  17. 25 CFR 166.605 - Are cash performance bonds refunded?

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ... 25 Indians 1 2011-04-01 2011-04-01 false Are cash performance bonds refunded? 166.605 Section 166.605 Indians BUREAU OF INDIAN AFFAIRS, DEPARTMENT OF THE INTERIOR LAND AND WATER GRAZING PERMITS Bonding and Insurance Requirements § 166.605 Are cash performance bonds refunded? If the cash...

  18. 25 CFR 166.907 - Who can be an intern?

    Code of Federal Regulations, 2012 CFR

    2012-04-01

    ... 25 Indians 1 2012-04-01 2011-04-01 true Who can be an intern? 166.907 Section 166.907 Indians..., Education Assistance, Recruitment, and Training § 166.907 Who can be an intern? (a) Natural resources or... bonus pay incentive, up to 25 percent (%) of the intern's base salary, may be provided...

  19. 25 CFR 166.907 - Who can be an intern?

    Code of Federal Regulations, 2013 CFR

    2013-04-01

    ... 25 Indians 1 2013-04-01 2013-04-01 false Who can be an intern? 166.907 Section 166.907 Indians..., Education Assistance, Recruitment, and Training § 166.907 Who can be an intern? (a) Natural resources or... bonus pay incentive, up to 25 percent (%) of the intern's base salary, may be provided...

  20. 25 CFR 166.907 - Who can be an intern?

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ... 25 Indians 1 2011-04-01 2011-04-01 false Who can be an intern? 166.907 Section 166.907 Indians..., Education Assistance, Recruitment, and Training § 166.907 Who can be an intern? (a) Natural resources or... bonus pay incentive, up to 25 percent (%) of the intern's base salary, may be provided...

  1. 25 CFR 166.907 - Who can be an intern?

    Code of Federal Regulations, 2014 CFR

    2014-04-01

    ... 25 Indians 1 2014-04-01 2014-04-01 false Who can be an intern? 166.907 Section 166.907 Indians..., Education Assistance, Recruitment, and Training § 166.907 Who can be an intern? (a) Natural resources or... bonus pay incentive, up to 25 percent (%) of the intern's base salary, may be provided...

  2. 46 CFR 166.01 - Approval of nautical school ships.

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ... 46 Shipping 7 2014-10-01 2014-10-01 false Approval of nautical school ships. 166.01 Section 166.01... OF NAUTICAL SCHOOL SHIPS § 166.01 Approval of nautical school ships. (a) Under 46 U.S.C. 7315... documents. (b) It has been made to appear to the satisfaction of the Commandant that the school...

  3. 46 CFR 166.01 - Approval of nautical school ships.

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ... 46 Shipping 7 2011-10-01 2011-10-01 false Approval of nautical school ships. 166.01 Section 166.01... OF NAUTICAL SCHOOL SHIPS § 166.01 Approval of nautical school ships. (a) Under 46 U.S.C. 7315... documents. (b) It has been made to appear to the satisfaction of the Commandant that the school...

  4. 46 CFR 166.01 - Approval of nautical school ships.

    Code of Federal Regulations, 2012 CFR

    2012-10-01

    ... 46 Shipping 7 2012-10-01 2012-10-01 false Approval of nautical school ships. 166.01 Section 166.01... OF NAUTICAL SCHOOL SHIPS § 166.01 Approval of nautical school ships. (a) Under 46 U.S.C. 7315... documents. (b) It has been made to appear to the satisfaction of the Commandant that the school...

  5. 46 CFR 166.01 - Approval of nautical school ships.

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ... 46 Shipping 7 2013-10-01 2013-10-01 false Approval of nautical school ships. 166.01 Section 166.01... OF NAUTICAL SCHOOL SHIPS § 166.01 Approval of nautical school ships. (a) Under 46 U.S.C. 7315... documents. (b) It has been made to appear to the satisfaction of the Commandant that the school...

  6. 10 CFR 72.166 - Handling, storage, and shipping control.

    Code of Federal Regulations, 2014 CFR

    2014-01-01

    ... 10 Energy 2 2014-01-01 2014-01-01 false Handling, storage, and shipping control. 72.166 Section 72.166 Energy NUCLEAR REGULATORY COMMISSION (CONTINUED) LICENSING REQUIREMENTS FOR THE INDEPENDENT STORAGE OF SPENT NUCLEAR FUEL, HIGH-LEVEL RADIOACTIVE WASTE, AND REACTOR-RELATED GREATER THAN CLASS C WASTE Quality Assurance § 72.166 Handling,...

  7. 25 CFR 166.802 - Who can enforce this subpart?

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ... 25 Indians 1 2010-04-01 2010-04-01 false Who can enforce this subpart? 166.802 Section 166.802 Indians BUREAU OF INDIAN AFFAIRS, DEPARTMENT OF THE INTERIOR LAND AND WATER GRAZING PERMITS Trespass § 166.802 Who can enforce this subpart? (a) The BIA enforces the provisions of this subpart. If the...

  8. 25 CFR 166.907 - Who can be an intern?

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ... 25 Indians 1 2010-04-01 2010-04-01 false Who can be an intern? 166.907 Section 166.907 Indians..., Education Assistance, Recruitment, and Training § 166.907 Who can be an intern? (a) Natural resources or... can arrange for an Intergovernmental Personnel Act assignment in tribal or Alaska Native...

  9. 25 CFR 166.800 - What is trespass?

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ... 25 Indians 1 2010-04-01 2010-04-01 false What is trespass? 166.800 Section 166.800 Indians BUREAU OF INDIAN AFFAIRS, DEPARTMENT OF THE INTERIOR LAND AND WATER GRAZING PERMITS Trespass § 166.800 What is trespass? Under this part, trespass is any unauthorized occupancy, use of, or action on...

  10. 33 CFR 166.500 - Areas along the Atlantic Coast.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 33 Navigation and Navigable Waters 2 2010-07-01 2010-07-01 false Areas along the Atlantic Coast. 166.500 Section 166.500 Navigation and Navigable Waters COAST GUARD, DEPARTMENT OF HOMELAND SECURITY... Anchorages § 166.500 Areas along the Atlantic Coast. (a) Purpose. Fairways, as described in this section...

  11. 33 CFR 166.500 - Areas along the Atlantic Coast.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... 33 Navigation and Navigable Waters 2 2012-07-01 2012-07-01 false Areas along the Atlantic Coast. 166.500 Section 166.500 Navigation and Navigable Waters COAST GUARD, DEPARTMENT OF HOMELAND SECURITY... Anchorages § 166.500 Areas along the Atlantic Coast. (a) Purpose. Fairways, as described in this section...

  12. 33 CFR 166.500 - Areas along the Atlantic Coast.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... 33 Navigation and Navigable Waters 2 2014-07-01 2014-07-01 false Areas along the Atlantic Coast. 166.500 Section 166.500 Navigation and Navigable Waters COAST GUARD, DEPARTMENT OF HOMELAND SECURITY... Anchorages § 166.500 Areas along the Atlantic Coast. (a) Purpose. Fairways, as described in this section...

  13. 33 CFR 166.500 - Areas along the Atlantic Coast.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... 33 Navigation and Navigable Waters 2 2013-07-01 2013-07-01 false Areas along the Atlantic Coast. 166.500 Section 166.500 Navigation and Navigable Waters COAST GUARD, DEPARTMENT OF HOMELAND SECURITY... Anchorages § 166.500 Areas along the Atlantic Coast. (a) Purpose. Fairways, as described in this section...

  14. 33 CFR 166.500 - Areas along the Atlantic Coast.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... 33 Navigation and Navigable Waters 2 2011-07-01 2011-07-01 false Areas along the Atlantic Coast. 166.500 Section 166.500 Navigation and Navigable Waters COAST GUARD, DEPARTMENT OF HOMELAND SECURITY... Anchorages § 166.500 Areas along the Atlantic Coast. (a) Purpose. Fairways, as described in this section...

  15. 34 CFR 300.166 - Rule of construction.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... 34 Education 2 2013-07-01 2013-07-01 false Rule of construction. 300.166 Section 300.166 Education... DISABILITIES State Eligibility Additional Eligibility Requirements § 300.166 Rule of construction. In complying... inflation. (Approved by the Office of Management and Budget under control number 1820-0030) (Authority: 20...

  16. 34 CFR 300.166 - Rule of construction.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... 34 Education 2 2014-07-01 2013-07-01 true Rule of construction. 300.166 Section 300.166 Education... DISABILITIES State Eligibility Additional Eligibility Requirements § 300.166 Rule of construction. In complying... inflation. (Approved by the Office of Management and Budget under control number 1820-0030) (Authority: 20...

  17. 34 CFR 300.166 - Rule of construction.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... 34 Education 2 2011-07-01 2010-07-01 true Rule of construction. 300.166 Section 300.166 Education... DISABILITIES State Eligibility Additional Eligibility Requirements § 300.166 Rule of construction. In complying... inflation. (Approved by the Office of Management and Budget under control number 1820-0030) (Authority: 20...

  18. 34 CFR 300.166 - Rule of construction.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 34 Education 2 2010-07-01 2010-07-01 false Rule of construction. 300.166 Section 300.166 Education... DISABILITIES State Eligibility Additional Eligibility Requirements § 300.166 Rule of construction. In complying... inflation. (Approved by the Office of Management and Budget under control number 1820-0030) (Authority: 20...

  19. 34 CFR 300.166 - Rule of construction.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... 34 Education 2 2012-07-01 2012-07-01 false Rule of construction. 300.166 Section 300.166 Education... DISABILITIES State Eligibility Additional Eligibility Requirements § 300.166 Rule of construction. In complying... inflation. (Approved by the Office of Management and Budget under control number 1820-0030) (Authority: 20...

  20. 25 CFR 166.313 - Is environmental compliance required?

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ... 25 Indians 1 2010-04-01 2010-04-01 false Is environmental compliance required? 166.313 Section 166.313 Indians BUREAU OF INDIAN AFFAIRS, DEPARTMENT OF THE INTERIOR LAND AND WATER GRAZING PERMITS Land and Operations Management Management Plans and Environmental Compliance § 166.313 Is environmental compliance required? Actions taken by the...

  1. 9 CFR 166.14 - Cleaning and disinfecting.

    Code of Federal Regulations, 2011 CFR

    2011-01-01

    ... 9 Animals and Animal Products 1 2011-01-01 2011-01-01 false Cleaning and disinfecting. 166.14 Section 166.14 Animals and Animal Products ANIMAL AND PLANT HEALTH INSPECTION SERVICE, DEPARTMENT OF AGRICULTURE SWINE HEALTH PROTECTION SWINE HEALTH PROTECTION General Provisions § 166.14 Cleaning and disinfecting. (a) Disinfectants to be...

  2. 9 CFR 166.14 - Cleaning and disinfecting.

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ... 9 Animals and Animal Products 1 2010-01-01 2010-01-01 false Cleaning and disinfecting. 166.14 Section 166.14 Animals and Animal Products ANIMAL AND PLANT HEALTH INSPECTION SERVICE, DEPARTMENT OF AGRICULTURE SWINE HEALTH PROTECTION SWINE HEALTH PROTECTION General Provisions § 166.14 Cleaning and disinfecting. (a) Disinfectants to be...

  3. 25 CFR 166.312 - Is a conservation plan required?

    Code of Federal Regulations, 2014 CFR

    2014-04-01

    ... 25 Indians 1 2014-04-01 2014-04-01 false Is a conservation plan required? 166.312 Section 166.312... Operations Management Management Plans and Environmental Compliance § 166.312 Is a conservation plan required? A conservation plan must be developed for each permit with the permittee and approved by us prior...

  4. 25 CFR 166.312 - Is a conservation plan required?

    Code of Federal Regulations, 2012 CFR

    2012-04-01

    ... 25 Indians 1 2012-04-01 2011-04-01 true Is a conservation plan required? 166.312 Section 166.312... Operations Management Management Plans and Environmental Compliance § 166.312 Is a conservation plan required? A conservation plan must be developed for each permit with the permittee and approved by us prior...

  5. 25 CFR 166.312 - Is a conservation plan required?

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ... 25 Indians 1 2010-04-01 2010-04-01 false Is a conservation plan required? 166.312 Section 166.312... Operations Management Management Plans and Environmental Compliance § 166.312 Is a conservation plan required? A conservation plan must be developed for each permit with the permittee and approved by us prior...

  6. 25 CFR 166.312 - Is a conservation plan required?

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ... 25 Indians 1 2011-04-01 2011-04-01 false Is a conservation plan required? 166.312 Section 166.312... Operations Management Management Plans and Environmental Compliance § 166.312 Is a conservation plan required? A conservation plan must be developed for each permit with the permittee and approved by us prior...

  7. 26 CFR 1.166-1 - Bad debts.

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ... 26 Internal Revenue 2 2011-04-01 2011-04-01 false Bad debts. 1.166-1 Section 1.166-1 Internal... TAXES (CONTINUED) Itemized Deductions for Individuals and Corporations § 1.166-1 Bad debts. (a... shall be allowed in respect of bad debts owed to the taxpayer. For this purpose, bad debts...

  8. 26 CFR 1.166-4 - Reserve for bad debts.

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ... 26 Internal Revenue 2 2011-04-01 2011-04-01 false Reserve for bad debts. 1.166-4 Section 1.166-4...) INCOME TAXES (CONTINUED) Itemized Deductions for Individuals and Corporations § 1.166-4 Reserve for bad debts. (a) Allowance of deduction. A taxpayer who has established the reserve method of treating...

  9. 26 CFR 1.166-1 - Bad debts.

    Code of Federal Regulations, 2013 CFR

    2013-04-01

    ... 26 Internal Revenue 2 2013-04-01 2013-04-01 false Bad debts. 1.166-1 Section 1.166-1 Internal... TAXES (CONTINUED) Itemized Deductions for Individuals and Corporations § 1.166-1 Bad debts. (a... shall be allowed in respect of bad debts owed to the taxpayer. For this purpose, bad debts...

  10. 26 CFR 1.166-4 - Reserve for bad debts.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ... 26 Internal Revenue 2 2010-04-01 2010-04-01 false Reserve for bad debts. 1.166-4 Section 1.166-4...) INCOME TAXES (CONTINUED) Itemized Deductions for Individuals and Corporations § 1.166-4 Reserve for bad debts. (a) Allowance of deduction. A taxpayer who has established the reserve method of treating...

  11. 26 CFR 1.166-4 - Reserve for bad debts.

    Code of Federal Regulations, 2012 CFR

    2012-04-01

    ... 26 Internal Revenue 2 2012-04-01 2012-04-01 false Reserve for bad debts. 1.166-4 Section 1.166-4...) INCOME TAXES (CONTINUED) Itemized Deductions for Individuals and Corporations § 1.166-4 Reserve for bad debts. (a) Allowance of deduction. A taxpayer who has established the reserve method of treating...

  12. 26 CFR 1.166-1 - Bad debts.

    Code of Federal Regulations, 2014 CFR

    2014-04-01

    ... 26 Internal Revenue 2 2014-04-01 2014-04-01 false Bad debts. 1.166-1 Section 1.166-1 Internal... TAXES (CONTINUED) Itemized Deductions for Individuals and Corporations § 1.166-1 Bad debts. (a... shall be allowed in respect of bad debts owed to the taxpayer. For this purpose, bad debts...

  13. 26 CFR 1.166-1 - Bad debts.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ... 26 Internal Revenue 2 2010-04-01 2010-04-01 false Bad debts. 1.166-1 Section 1.166-1 Internal... TAXES (CONTINUED) Itemized Deductions for Individuals and Corporations § 1.166-1 Bad debts. (a... shall be allowed in respect of bad debts owed to the taxpayer. For this purpose, bad debts...

  14. 26 CFR 1.166-4 - Reserve for bad debts.

    Code of Federal Regulations, 2014 CFR

    2014-04-01

    ... 26 Internal Revenue 2 2014-04-01 2014-04-01 false Reserve for bad debts. 1.166-4 Section 1.166-4...) INCOME TAXES (CONTINUED) Itemized Deductions for Individuals and Corporations § 1.166-4 Reserve for bad debts. (a) Allowance of deduction. A taxpayer who has established the reserve method of treating...

  15. 26 CFR 1.166-1 - Bad debts.

    Code of Federal Regulations, 2012 CFR

    2012-04-01

    ... 26 Internal Revenue 2 2012-04-01 2012-04-01 false Bad debts. 1.166-1 Section 1.166-1 Internal... TAXES (CONTINUED) Itemized Deductions for Individuals and Corporations § 1.166-1 Bad debts. (a... shall be allowed in respect of bad debts owed to the taxpayer. For this purpose, bad debts...

  16. 26 CFR 1.166-4 - Reserve for bad debts.

    Code of Federal Regulations, 2013 CFR

    2013-04-01

    ... 26 Internal Revenue 2 2013-04-01 2013-04-01 false Reserve for bad debts. 1.166-4 Section 1.166-4...) INCOME TAXES (CONTINUED) Itemized Deductions for Individuals and Corporations § 1.166-4 Reserve for bad debts. (a) Allowance of deduction. A taxpayer who has established the reserve method of treating...

  17. 25 CFR 166.400 - Who establishes grazing rental rates?

    Code of Federal Regulations, 2012 CFR

    2012-04-01

    ... 25 Indians 1 2012-04-01 2011-04-01 true Who establishes grazing rental rates? 166.400 Section 166... Grazing Rental Rates, Payments, and Late Payment Collections Rental Rate Determination and Adjustment § 166.400 Who establishes grazing rental rates? (a) For tribal lands, a tribe may establish a...

  18. 25 CFR 166.400 - Who establishes grazing rental rates?

    Code of Federal Regulations, 2014 CFR

    2014-04-01

    ... 25 Indians 1 2014-04-01 2014-04-01 false Who establishes grazing rental rates? 166.400 Section 166... Grazing Rental Rates, Payments, and Late Payment Collections Rental Rate Determination and Adjustment § 166.400 Who establishes grazing rental rates? (a) For tribal lands, a tribe may establish a...

  19. 25 CFR 166.400 - Who establishes grazing rental rates?

    Code of Federal Regulations, 2013 CFR

    2013-04-01

    ... 25 Indians 1 2013-04-01 2013-04-01 false Who establishes grazing rental rates? 166.400 Section 166... Grazing Rental Rates, Payments, and Late Payment Collections Rental Rate Determination and Adjustment § 166.400 Who establishes grazing rental rates? (a) For tribal lands, a tribe may establish a...

  20. 25 CFR 166.400 - Who establishes grazing rental rates?

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ... 25 Indians 1 2010-04-01 2010-04-01 false Who establishes grazing rental rates? 166.400 Section 166... Grazing Rental Rates, Payments, and Late Payment Collections Rental Rate Determination and Adjustment § 166.400 Who establishes grazing rental rates? (a) For tribal lands, a tribe may establish a...

  1. 25 CFR 166.400 - Who establishes grazing rental rates?

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ... 25 Indians 1 2011-04-01 2011-04-01 false Who establishes grazing rental rates? 166.400 Section 166... Grazing Rental Rates, Payments, and Late Payment Collections Rental Rate Determination and Adjustment § 166.400 Who establishes grazing rental rates? (a) For tribal lands, a tribe may establish a...

  2. 17 CFR 166.2 - Authorization to trade.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ... 17 Commodity and Securities Exchanges 1 2010-04-01 2010-04-01 false Authorization to trade. 166.2 Section 166.2 Commodity and Securities Exchanges COMMODITY FUTURES TRADING COMMISSION CUSTOMER PROTECTION RULES § 166.2 Authorization to trade. No futures commission merchant, introducing broker or any of...

  3. 17 CFR 166.2 - Authorization to trade.

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ... 17 Commodity and Securities Exchanges 1 2011-04-01 2011-04-01 false Authorization to trade. 166.2 Section 166.2 Commodity and Securities Exchanges COMMODITY FUTURES TRADING COMMISSION CUSTOMER PROTECTION RULES § 166.2 Authorization to trade. No futures commission merchant, retail foreign exchange...

  4. 17 CFR 166.2 - Authorization to trade.

    Code of Federal Regulations, 2012 CFR

    2012-04-01

    ... 17 Commodity and Securities Exchanges 1 2012-04-01 2012-04-01 false Authorization to trade. 166.2 Section 166.2 Commodity and Securities Exchanges COMMODITY FUTURES TRADING COMMISSION CUSTOMER PROTECTION RULES § 166.2 Authorization to trade. No futures commission merchant, retail foreign exchange...

  5. 17 CFR 166.2 - Authorization to trade.

    Code of Federal Regulations, 2014 CFR

    2014-04-01

    ... 17 Commodity and Securities Exchanges 2 2014-04-01 2014-04-01 false Authorization to trade. 166.2 Section 166.2 Commodity and Securities Exchanges COMMODITY FUTURES TRADING COMMISSION (CONTINUED) CUSTOMER PROTECTION RULES § 166.2 Authorization to trade. No futures commission merchant, retail foreign...

  6. 17 CFR 166.2 - Authorization to trade.

    Code of Federal Regulations, 2013 CFR

    2013-04-01

    ... 17 Commodity and Securities Exchanges 1 2013-04-01 2013-04-01 false Authorization to trade. 166.2 Section 166.2 Commodity and Securities Exchanges COMMODITY FUTURES TRADING COMMISSION CUSTOMER PROTECTION RULES § 166.2 Authorization to trade. No futures commission merchant, retail foreign exchange...

  7. 46 CFR 166.01 - Approval of nautical school ships.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... 46 Shipping 7 2010-10-01 2010-10-01 false Approval of nautical school ships. 166.01 Section 166.01 Shipping COAST GUARD, DEPARTMENT OF HOMELAND SECURITY (CONTINUED) NAUTICAL SCHOOLS DESIGNATION AND APPROVAL OF NAUTICAL SCHOOL SHIPS § 166.01 Approval of nautical school ships. (a) Under 46 U.S.C....

  8. 25 CFR 166.312 - Is a conservation plan required?

    Code of Federal Regulations, 2013 CFR

    2013-04-01

    ... 25 Indians 1 2013-04-01 2013-04-01 false Is a conservation plan required? 166.312 Section 166.312 Indians BUREAU OF INDIAN AFFAIRS, DEPARTMENT OF THE INTERIOR LAND AND WATER GRAZING PERMITS Land and Operations Management Management Plans and Environmental Compliance § 166.312 Is a conservation plan...

  9. {Delta}I = 2 energy staggering in normal deformed dysprosium nuclei

    SciTech Connect

    Riley, M.A.; Brown, T.B.; Archer, D.E.

    1996-12-31

    Very high spin states (I{ge}50{Dirac_h}) have been observed in {sup 155,156,157}Dy. The long regular band sequences, free from sharp backbending effects, observed in these dysprosium nuclei offer the possibility of investigating the occurence of any {Delta}I = 2 staggering in normal deformed nuclei. Employing the same analysis techniques as used in superdeformed nuclei, certain bands do indeed demonstrate an apparent staggering and this is discussed.

  10. Repeat radiation synovectomy with dysprosium 165-ferric hydroxide macroaggregates in rheumatoid knees unresponsive to initial injection

    SciTech Connect

    Vella, M.; Zuckerman, J.D.; Shortkroff, S.; Venkatesan, P.; Sledge, C.B.

    1988-06-01

    Because of failure to fully respond to an initial intraarticular injection of dysprosium 165-ferric hydroxide macroaggregates, 17 patients with seropositive rheumatoid arthritis underwent repeat radiation synovectomy using this agent. Of the 13 patients who were evaluated 1 year later, 54% (7 knees) had good results, 31% (4 knees) had fair results, and 15% (2 knees) had poor results. The initial lack of significant benefit from radiation synovectomy did not appear to preclude a favorable response to a second injection.

  11. Synovectomy of the rheumatoid knee using intra-articular injection of dysprosium-165-ferric hydroxide macroaggregates

    SciTech Connect

    Sledge, C.B.; Zuckerman, J.D.; Shortkroff, S.; Zalutsky, M.R.; Venkatesan, P.; Snyder, M.A.; Barrett, W.P.

    1987-09-01

    One hundred and eleven patients who had seropositive rheumatoid arthritis and persistent synovitis of the knee were treated with intra-articular injection of 270 millicuries of dysprosium-165 bound to ferric hydroxide macroaggregates. A two-year follow-up was available for fifty-nine of the treated knees. Thirty-nine had a good result; nine, a fair result; and eleven, a poor result. Of the twenty-five knees that had Stage-I radiographic changes, nineteen had a good result. Of the thirty-four knees that had Stage-II radiographic changes, twenty showed a good result. Systemic spread of the radioactivity from the injected joint was minimum. The mean whole-body dose was calculated to be 0.3 rad and that to the liver twenty-four hours after injection, 3.2 rads. The results indicated that dysprosium-165-ferric hydroxide macroaggregate is an effective agent for performing radiation synovectomy, particularly in knees that have Stage-I radiographic changes. Because of the minimum rate of systemic spread of the dysprosium-165, it offers a definite advantage over agents that previously have been used.

  12. The synthesis, structure, magnetic and luminescent properties of a new tetranuclear dysprosium (III) cluster

    SciTech Connect

    Chen, Yen-Han; Tsai, Yun-Fan; Lee, Gene-Hsian; Yang, En-Che

    2012-01-15

    The synthesis and characterization of [Dy{sub 4}(dhampH{sub 3}){sub 4}(NO{sub 3}){sub 2}](NO{sub 3}){sub 2} (1), a new tetranuclear dysprosium (III) complex, is described. The compound was characterized by its X-ray structure, magnetic properties as well as the luminescent spectra. The compound crystallizes in a P1-bar space group with a zig-zag linear form of geometry. The ac magnetic susceptibilities of the molecule indicate that it is a magnetic molecule with a slow magnetization relaxation. The molecule also exhibits an emission spectrum that was confirmed to be ligand based. These results indicate that this molecule has both a slow magnetization relaxation (that could be potentially a SMM) and luminescent properties. - Graphical Abstract: A new tetranuclear dysprosium (III) complex [Dy{sub 4}(dhampH{sub 3}){sub 4}(NO{sub 3}){sub 2}](NO{sub 3}){sub 2} is synthesized and reported in this paper. This molecule has luminescence and can potentially act as a SMM. Highlights: Black-Right-Pointing-Pointer A new designed ligand (dhampH{sub 5}) was syntheisized. Black-Right-Pointing-Pointer A new tetra-dysprosium cluster [Dy{sub 4}(dhampH{sub 3}){sub 4}(NO{sub 3}){sub 2}](NO{sub 3}){sub 2} was made. Black-Right-Pointing-Pointer Slow magnetization relaxation phenomenon was observed. Black-Right-Pointing-Pointer Ligand-based luminescence was observed.

  13. Optical properties and laser potential of dysprosium doped YAl3(BO3)(4) (YAB) crystal

    NASA Astrophysics Data System (ADS)

    Dominiak-Dzik, G.; Solarz, P.; Ryba-Romanowski, W.; Beregi, E.; Hartmann, E.; Kovacs, L.

    The absorption and emission spectra were measured at 5 and 300 K. The positions of the selected Dy3+ levels and their Stark components, determined from optical spectra at 5K, are presented. In this work an attempt is made to assess the potential of dysprosium doped YAl3 (BO3 )(4) crystal as a laser active material operating near 570 nm. The emission cross-section of a potential laser line at 570 nm connected with F-4 (9/2) --> H-6(13/2) transition was estimated.

  14. Structure of dimeric dysprosium (III) d-tartrate of 2:2 composition in aqueous solution

    SciTech Connect

    Chevela, V.V.; Vul`fson, S.G.; Sal`nikov, Yu.I.

    1994-12-20

    The molar constant of paramagnetic birefringence of dimeric dysprosium d-tartrate Dy{sub 2}(d-L){sup 2{minus}}{sub 2} (d-L{sup 4{minus}} is a deprotonated molecule of tartaric acid) was determined experimentally and by mathematical simulation. The structures of the ligand and hydrate environment in Dy{sub 2}(d-L){sup 2{minus}}{sub 2} were simulated by the molecular mechanics method (Dashevskii-Plyamovatyi model). Results consistent with the experimental data can be obtained only when coordination of Na{sup +} is taken into account. 6 refs., 4 figs., 8 tabs.

  15. Therapeutic application of dysprosium-165-FHMA in the treatment of rheumatoid knee effusions

    SciTech Connect

    English, R.J.; Zalutsky, M.; Venkatesan, P.; Sledge, C.B.

    1986-03-01

    Radiation synovectomy utilizing a variety of radionuclides has proven to be an effective technique in the treatment of rheumatoid arthritis. The recent introduction of the short-lived radionuclide, Dysprosium-165 (/sup 165/Dy), as a replacement for the longer-lived radiocolloids has reduced nontarget dosimetry caused by leakage of the agent from the articular cavity. A review of the methods and status of radiation synovectomy, and the application of /sup 165/Dy-ferric hydroxide macroaggregates (FHMA) as an alternative therapeutic agent is described.

  16. Synthesis, crystal structure and magnetic properties of a novel heterobimetallic rhenium(IV)-dysprosium(III) chain.

    PubMed

    Pejo, Carolina; Guedes, Guilherme P; Novak, Miguel A; Speziali, Nivaldo L; Chiozzone, Raúl; Julve, Miguel; Lloret, Francesc; Vaz, Maria G F; González, Ricardo

    2015-06-01

    The use of the mononuclear rhenium(IV) precursor [ReBr5 (H2 pydc)](-) (H2 pydc=3,5-pyridinedicarboxylic acid) as a metalloligand towards dysprosium(III) afforded the first heterobimetallic Re(IV) -Dy(III) complex. Crystal structures and static and dynamic magnetic properties of both rhenium-containing species are reported herein. The 5d-4f compound shows an extended 1D structure and the AC magnetic measurements reveal frequency dependence at low temperature suggesting slow relaxation of the magnetization. PMID:25916407

  17. Far-infrared spectra of dysprosium doped yttrium aluminum garnet nanopowder

    NASA Astrophysics Data System (ADS)

    Trajić, J.; Rabasović, M. S.; Savić-Šević, S.; Ševic, D.; Babić, B.; Romčević, M.; Ristić-Djurović, J. L.; Paunović, N.; Križan, J.; Romčević, N.

    2016-07-01

    The solution combustion synthesis was used to prepare nanopowders of yttrium aluminum garnet (YAG) and YAG doped with dysprosium ions, Dy3+, (YAG:Dy). The morphology, specific surface area, texture, and optical properties of the prepared materials were studied by the means of scanning electron microscopy (SEM), nitrogen adsorption method, and far-infrared spectroscopy at room temperature in the spectral region between 80 and 600 cm-1. It was established that all the examined samples were microporous. The Maxwell-Garnet formula was used to model dielectric function of YAG and YAG:Dy nanopowders as mixtures of homogenous spherical inclusions in air.

  18. Investigation of ac Stark shifts in excited states of dysprosium relevant to testing fundamental symmetries

    NASA Astrophysics Data System (ADS)

    Weber, C. T. M.; Leefer, N.; Budker, D.

    2013-12-01

    We report on measurements of the differential polarizability between the nearly degenerate, opposite parity states in atomic dysprosium at 19 797.96 cm-1, and the differential blackbody radiation induced Stark shift of these states. The differential scalar and tensor polarizabilities due to additional states were measured for the |M|=7,⋯,10 sublevels in 164Dy and 162Dy and determined to be α¯BA(0)=180(45)stat(8)sys mHz/(V/cm)2 and α¯BA(2)=-163(65)stat(5)sys mHz/(V/cm)2, respectively. The average blackbody radiation induced Stark shift of the Zeeman spectrum was measured around 300 K and found to be -34(4) mHz/K and +29(4) mHz/K for 164Dy and 162Dy, respectively. We conclude that ac Stark related systematics will not limit a search for variation of the fine-structure constant, using dysprosium, down to the level of |α˙/α|=2.6×10-17 yr-1, for two measurements of the transition frequency one year apart.

  19. Dosimetric properties of dysprosium doped calcium magnesium borate glass subjected to Co-60 gamma ray

    NASA Astrophysics Data System (ADS)

    Omar, R. S.; Wagiran, H.; Saeed, M. A.

    2016-01-01

    Thermoluminescence (TL) dosimetric properties of dysprosium doped calcium magnesium borate (CMB:Dy) glass are presented. This study is deemed to understand the application of calcium as the modifier in magnesium borate glass with the presence of dysprosium as the activator to be performed as TL dosimeter (TLD). The study provides fundamental knowledge of a glass system that may lead to perform new TL glass dosimetry application in future research. Calcium magnesium borate glass systems of (70-y) B2O3 - 20 CaO - 10 MgO-(y) Dy2O3 with 0.05 mol % ≤ y ≤ 0.7 mol % of dyprosium were prepared by melt-quenching technique. The amorphous structure and TL properties of the prepared samples were determined using powder X-ray diffraction (XRD) and TL reader; model Harshaw 4500 respectively. The samples were irradiated to Co-60 gamma source at a dose of 50 Gy. Dosimetric properties such as annealing procedure, time temperature profile (TTP) setting, optimization of Dy2O3 concentration of 0.5 mol % were determined for thermoluminescence dosimeter (TLD) reader used.

  20. Treatment of rheumatoid synovitis of the knee with intraarticular injection of dysprosium 165-ferric hydroxide macroaggregates

    SciTech Connect

    Sledge, C.B.; Zuckerman, J.D.; Zalutsky, M.R.; Atcher, R.W.; Shortkroff, S.; Lionberger, D.R.; Rose, H.A.; Hurson, B.J.; Lankenner, P.A. Jr.; Anderson, R.J.

    1986-02-01

    One hundred eight knees of 93 patients with seropositive rheumatoid arthritis and persistent synovitis of the knee were treated with an intraarticular injection of 270 mCi of dysprosium 165 bound to ferric hydroxide macroaggregate. Leakage of radioactivity from the injected joint was minimal. Mean leakage to the venous blood 3 hours after injection was 0.11% of the injected dose; this corresponds to a mean whole body dose of 0.2 rads. Mean leakage to the liver 24 hours after injection was 0.64% of the injected dose; this corresponds to a mean liver dose of 3.2 rads. In 7 additional patients examined, there was negligible or near negligible activity found in the draining inguinal lymph nodes. One-year followup was possible for 74 knees (63 patients). Sixty-one percent of the knees had good results, 23% had fair results, and 16% had poor results. There was a direct correlation between the radiographic stage and response to treatment. In knees with stage I radiographic changes, 72% showed good results; 93% showed improvement. In knees with stage II changes, 59% showed good results; 81% showed improvement. These preliminary results indicate that dysprosium 165-ferric hydroxide macroaggregate is an effective agent for radiation synovectomy. The low leakage rates observed offer a definite advantage over agents previously used.

  1. Influencing the properties of dysprosium single-molecule magnets with phosphorus donor ligands.

    PubMed

    Pugh, Thomas; Tuna, Floriana; Ungur, Liviu; Collison, David; McInnes, Eric J L; Chibotaru, Liviu F; Layfield, Richard A

    2015-01-01

    Single-molecule magnets are a type of coordination compound that can retain magnetic information at low temperatures. Single-molecule magnets based on lanthanides have accounted for many important advances, including systems with very large energy barriers to reversal of the magnetization, and a di-terbium complex that displays magnetic hysteresis up to 14 K and shows strong coercivity. Ligand design is crucial for the development of new single-molecule magnets: organometallic chemistry presents possibilities for using unconventional ligands, particularly those with soft donor groups. Here we report dysprosium single-molecule magnets with neutral and anionic phosphorus donor ligands, and show that their properties change dramatically when varying the ligand from phosphine to phosphide to phosphinidene. A phosphide-ligated, trimetallic dysprosium single-molecule magnet relaxes via the second-excited Kramers' doublet, and, when doped into a diamagnetic matrix at the single-ion level, produces a large energy barrier of 256 cm(-1) and magnetic hysteresis up to 4.4 K. PMID:26130418

  2. Influencing the properties of dysprosium single-molecule magnets with phosphorus donor ligands

    PubMed Central

    Pugh, Thomas; Tuna, Floriana; Ungur, Liviu; Collison, David; McInnes, Eric J.L.; Chibotaru, Liviu F.; Layfield, Richard A.

    2015-01-01

    Single-molecule magnets are a type of coordination compound that can retain magnetic information at low temperatures. Single-molecule magnets based on lanthanides have accounted for many important advances, including systems with very large energy barriers to reversal of the magnetization, and a di-terbium complex that displays magnetic hysteresis up to 14 K and shows strong coercivity. Ligand design is crucial for the development of new single-molecule magnets: organometallic chemistry presents possibilities for using unconventional ligands, particularly those with soft donor groups. Here we report dysprosium single-molecule magnets with neutral and anionic phosphorus donor ligands, and show that their properties change dramatically when varying the ligand from phosphine to phosphide to phosphinidene. A phosphide-ligated, trimetallic dysprosium single-molecule magnet relaxes via the second-excited Kramers' doublet, and, when doped into a diamagnetic matrix at the single-ion level, produces a large energy barrier of 256 cm−1 and magnetic hysteresis up to 4.4 K. PMID:26130418

  3. Tuning Slow Magnetic Relaxation in a Two-Dimensional Dysprosium Layer Compound through Guest Molecules.

    PubMed

    Chen, Qi; Li, Jian; Meng, Yin-Shan; Sun, Hao-Ling; Zhang, Yi-Quan; Sun, Jun-Liang; Gao, Song

    2016-08-15

    A novel two-dimensional dysprosium(III) complex, [Dy(L)(CH3COO)]·0.5DMF·H2O·2CH3OH (1), has been successfully synthesized from a new pyridine-N-oxide (PNO)-containing ligand, namely, N'-(2-hydroxy-3-methoxybenzylidene)pyridine-N-oxidecarbohydrazide (H2L). Single-crystal X-ray diffraction studies reveal that complex 1 is composed of a dinuclear dysprosium subunit, which is further extended by the PNO part of the ligand to form a two-dimensional layer. Magnetic studies indicate that complex 1 shows well-defined temperature- and frequency-dependent signals under a zero direct-current (dc) field, typical of slow magnetic relaxation with an effective energy barrier Ueff of 33.6 K under a zero dc field. Interestingly, powder X-ray diffraction and thermogravimetric analysis reveal that compound 1 undergoes a reversible phase transition that is induced by the desorption and absorption of methanol and water molecules. Moreover, the desolvated sample [Dy(L)(CH3COO)]·0.5DMF (1a) also exhibits slow magnetic relaxation but with a higher anisotropic barrier of 42.0 K, indicating the tuning effect of solvent molecules on slow magnetic relaxation. PMID:27483199

  4. Local coordination geometry perturbed β-diketone dysprosium single-ion magnets.

    PubMed

    Zhu, Jing; Wang, Changzheng; Luan, Fang; Liu, Tianqi; Yan, Pengfei; Li, Guangming

    2014-09-01

    A series of three β-diketone mononuclear dysprosium complexes, namely, Dy(TFI)3(H2O)2 (1), Dy(TFI)3(bpy) (2), and [Dy(TFI)3(Phen)]·0.02CHCl3 (3) (TFI = 2-(2,2,2-trifluoroethyl)-1-indone, bpy = 2,2'-bipyridine, phen = 1,10-phenanthroline) have been designed and synthesized. Crystal structure analysis reveals that complexes 1-3 have haveisomorphic structures in which the central Dy(III) ion is eight-coordinated by six oxygen atoms from three TFI ligands and two O/N atoms from auxiliary ligands, forming a distorted bicapped trigonal prismatic geometry for 1, a distorted dodecahedral geometry for 2, and a distorted square antiprismatic geometry for 3, respectively. Magnetic studies indicate that complex 2 with D(2d) symmetry and 3 with D(4d) symmetry exhibit slow magnetic relaxation with barrier heights (U(eff)/k(B)) of 48.8 K for 2 and 57.9 K for 3. Strikingly, the relaxation time (τ) of 0.0258 s for 3 is about 20 times that for 2, which is presumably associated with larger rotation of the SAP surroundings for 3. Further, complexes 2 and 3 exhibit essential magnetic hysteresis loops at 1.8 K. These extend the recent reports of the single-ion magnets (SIMs) of β-diketone mononuclear dysprosium complexes. PMID:25137135

  5. 40 CFR 60.166 - Test methods and procedures.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... 40 Protection of Environment 7 2013-07-01 2013-07-01 false Test methods and procedures. 60.166 Section 60.166 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) AIR PROGRAMS (CONTINUED) STANDARDS OF PERFORMANCE FOR NEW STATIONARY SOURCES Standards of Performance for Primary...

  6. 40 CFR 60.166 - Test methods and procedures.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... 40 Protection of Environment 7 2014-07-01 2014-07-01 false Test methods and procedures. 60.166 Section 60.166 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) AIR PROGRAMS (CONTINUED) STANDARDS OF PERFORMANCE FOR NEW STATIONARY SOURCES Standards of Performance for Primary...

  7. 40 CFR 417.166 - Pretreatment standards for new sources.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 40 Protection of Environment 28 2010-07-01 2010-07-01 true Pretreatment standards for new sources. 417.166 Section 417.166 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) EFFLUENT GUIDELINES AND STANDARDS SOAP AND DETERGENT MANUFACTURING POINT SOURCE CATEGORY Manufacture of Liquid Detergents Subcategory §...

  8. 40 CFR 417.166 - Pretreatment standards for new sources.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... 40 Protection of Environment 30 2012-07-01 2012-07-01 false Pretreatment standards for new sources. 417.166 Section 417.166 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) EFFLUENT GUIDELINES AND STANDARDS SOAP AND DETERGENT MANUFACTURING POINT SOURCE CATEGORY Manufacture of Liquid Detergents Subcategory §...

  9. 27 CFR 46.166 - Dealing in tobacco products.

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ... 27 Alcohol, Tobacco Products and Firearms 2 2011-04-01 2011-04-01 false Dealing in tobacco products. 46.166 Section 46.166 Alcohol, Tobacco Products and Firearms ALCOHOL AND TOBACCO TAX AND TRADE BUREAU, DEPARTMENT OF THE TREASURY (CONTINUED) TOBACCO MISCELLANEOUS REGULATIONS RELATING TO...

  10. 27 CFR 46.166 - Dealing in tobacco products.

    Code of Federal Regulations, 2014 CFR

    2014-04-01

    ... 27 Alcohol, Tobacco Products and Firearms 2 2014-04-01 2014-04-01 false Dealing in tobacco products. 46.166 Section 46.166 Alcohol, Tobacco Products and Firearms ALCOHOL AND TOBACCO TAX AND TRADE BUREAU, DEPARTMENT OF THE TREASURY (CONTINUED) TOBACCO MISCELLANEOUS REGULATIONS RELATING TO...

  11. 27 CFR 46.166 - Dealing in tobacco products.

    Code of Federal Regulations, 2012 CFR

    2012-04-01

    ... 27 Alcohol, Tobacco Products and Firearms 2 2012-04-01 2011-04-01 true Dealing in tobacco products. 46.166 Section 46.166 Alcohol, Tobacco Products and Firearms ALCOHOL AND TOBACCO TAX AND TRADE BUREAU, DEPARTMENT OF THE TREASURY (CONTINUED) TOBACCO MISCELLANEOUS REGULATIONS RELATING TO TOBACCO PRODUCTS...

  12. 27 CFR 46.166 - Dealing in tobacco products.

    Code of Federal Regulations, 2013 CFR

    2013-04-01

    ... 27 Alcohol, Tobacco Products and Firearms 2 2013-04-01 2013-04-01 false Dealing in tobacco products. 46.166 Section 46.166 Alcohol, Tobacco Products and Firearms ALCOHOL AND TOBACCO TAX AND TRADE BUREAU, DEPARTMENT OF THE TREASURY (CONTINUED) TOBACCO MISCELLANEOUS REGULATIONS RELATING TO...

  13. 40 CFR 166.7 - User notification; advertising.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... 40 Protection of Environment 24 2011-07-01 2011-07-01 false User notification; advertising. 166.7... § 166.7 User notification; advertising. (a) A State or Federal agency that obtains an exemption may... received) delivers or offers to deliver any pesticide, to advertise the pesticide for any use authorized...

  14. 9 CFR 166.11 - Suspension and revocation of licenses.

    Code of Federal Regulations, 2011 CFR

    2011-01-01

    ... 9 Animals and Animal Products 1 2011-01-01 2011-01-01 false Suspension and revocation of licenses. 166.11 Section 166.11 Animals and Animal Products ANIMAL AND PLANT HEALTH INSPECTION SERVICE, DEPARTMENT OF AGRICULTURE SWINE HEALTH PROTECTION SWINE HEALTH PROTECTION General Provisions §...

  15. 9 CFR 166.11 - Suspension and revocation of licenses.

    Code of Federal Regulations, 2012 CFR

    2012-01-01

    ... 9 Animals and Animal Products 1 2012-01-01 2012-01-01 false Suspension and revocation of licenses. 166.11 Section 166.11 Animals and Animal Products ANIMAL AND PLANT HEALTH INSPECTION SERVICE, DEPARTMENT OF AGRICULTURE SWINE HEALTH PROTECTION SWINE HEALTH PROTECTION General Provisions §...

  16. 9 CFR 166.6 - Swine feeding area standards.

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ... 9 Animals and Animal Products 1 2010-01-01 2010-01-01 false Swine feeding area standards. 166.6... AGRICULTURE SWINE HEALTH PROTECTION SWINE HEALTH PROTECTION General Provisions § 166.6 Swine feeding area standards. Untreated garbage shall not be allowed into swine feeding areas. Any equipment or...

  17. 9 CFR 166.6 - Swine feeding area standards.

    Code of Federal Regulations, 2011 CFR

    2011-01-01

    ... 9 Animals and Animal Products 1 2011-01-01 2011-01-01 false Swine feeding area standards. 166.6... AGRICULTURE SWINE HEALTH PROTECTION SWINE HEALTH PROTECTION General Provisions § 166.6 Swine feeding area standards. Untreated garbage shall not be allowed into swine feeding areas. Any equipment or...

  18. 9 CFR 166.11 - Suspension and revocation of licenses.

    Code of Federal Regulations, 2013 CFR

    2013-01-01

    ... 9 Animals and Animal Products 1 2013-01-01 2013-01-01 false Suspension and revocation of licenses. 166.11 Section 166.11 Animals and Animal Products ANIMAL AND PLANT HEALTH INSPECTION SERVICE, DEPARTMENT OF AGRICULTURE SWINE HEALTH PROTECTION SWINE HEALTH PROTECTION General Provisions §...

  19. 9 CFR 166.6 - Swine feeding area standards.

    Code of Federal Regulations, 2013 CFR

    2013-01-01

    ... 9 Animals and Animal Products 1 2013-01-01 2013-01-01 false Swine feeding area standards. 166.6... AGRICULTURE SWINE HEALTH PROTECTION SWINE HEALTH PROTECTION General Provisions § 166.6 Swine feeding area standards. Untreated garbage shall not be allowed into swine feeding areas. Any equipment or...

  20. 9 CFR 166.6 - Swine feeding area standards.

    Code of Federal Regulations, 2014 CFR

    2014-01-01

    ... 9 Animals and Animal Products 1 2014-01-01 2014-01-01 false Swine feeding area standards. 166.6... AGRICULTURE SWINE HEALTH PROTECTION SWINE HEALTH PROTECTION General Provisions § 166.6 Swine feeding area standards. Untreated garbage shall not be allowed into swine feeding areas. Any equipment or...

  1. 9 CFR 166.6 - Swine feeding area standards.

    Code of Federal Regulations, 2012 CFR

    2012-01-01

    ... 9 Animals and Animal Products 1 2012-01-01 2012-01-01 false Swine feeding area standards. 166.6... AGRICULTURE SWINE HEALTH PROTECTION SWINE HEALTH PROTECTION General Provisions § 166.6 Swine feeding area standards. Untreated garbage shall not be allowed into swine feeding areas. Any equipment or...

  2. 9 CFR 166.11 - Suspension and revocation of licenses.

    Code of Federal Regulations, 2014 CFR

    2014-01-01

    ... 9 Animals and Animal Products 1 2014-01-01 2014-01-01 false Suspension and revocation of licenses. 166.11 Section 166.11 Animals and Animal Products ANIMAL AND PLANT HEALTH INSPECTION SERVICE, DEPARTMENT OF AGRICULTURE SWINE HEALTH PROTECTION SWINE HEALTH PROTECTION General Provisions §...

  3. 9 CFR 166.11 - Suspension and revocation of licenses.

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ... 9 Animals and Animal Products 1 2010-01-01 2010-01-01 false Suspension and revocation of licenses. 166.11 Section 166.11 Animals and Animal Products ANIMAL AND PLANT HEALTH INSPECTION SERVICE, DEPARTMENT OF AGRICULTURE SWINE HEALTH PROTECTION SWINE HEALTH PROTECTION General Provisions §...

  4. 25 CFR 166.904 - What is agriculture education outreach?

    Code of Federal Regulations, 2014 CFR

    2014-04-01

    ... 25 Indians 1 2014-04-01 2014-04-01 false What is agriculture education outreach? 166.904 Section... Agriculture Education, Education Assistance, Recruitment, and Training § 166.904 What is agriculture education outreach? (a) We will establish and maintain an agriculture education outreach program for Indian...

  5. 25 CFR 166.904 - What is agriculture education outreach?

    Code of Federal Regulations, 2012 CFR

    2012-04-01

    ... 25 Indians 1 2012-04-01 2011-04-01 true What is agriculture education outreach? 166.904 Section... Agriculture Education, Education Assistance, Recruitment, and Training § 166.904 What is agriculture education outreach? (a) We will establish and maintain an agriculture education outreach program for Indian...

  6. 25 CFR 166.904 - What is agriculture education outreach?

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ... 25 Indians 1 2011-04-01 2011-04-01 false What is agriculture education outreach? 166.904 Section... Agriculture Education, Education Assistance, Recruitment, and Training § 166.904 What is agriculture education outreach? (a) We will establish and maintain an agriculture education outreach program for Indian...

  7. 25 CFR 166.904 - What is agriculture education outreach?

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ... 25 Indians 1 2010-04-01 2010-04-01 false What is agriculture education outreach? 166.904 Section... Agriculture Education, Education Assistance, Recruitment, and Training § 166.904 What is agriculture education outreach? (a) We will establish and maintain an agriculture education outreach program for Indian...

  8. 25 CFR 166.904 - What is agriculture education outreach?

    Code of Federal Regulations, 2013 CFR

    2013-04-01

    ... 25 Indians 1 2013-04-01 2013-04-01 false What is agriculture education outreach? 166.904 Section... Agriculture Education, Education Assistance, Recruitment, and Training § 166.904 What is agriculture education outreach? (a) We will establish and maintain an agriculture education outreach program for Indian...

  9. 40 CFR 166.45 - Duration of crisis exemption.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... 40 Protection of Environment 24 2011-07-01 2011-07-01 false Duration of crisis exemption. 166.45... EXEMPTION OF FEDERAL AND STATE AGENCIES FOR USE OF PESTICIDES UNDER EMERGENCY CONDITIONS Crisis Exemptions § 166.45 Duration of crisis exemption. A crisis exemption may be authorized for: (a) Only as long as...

  10. 40 CFR 166.45 - Duration of crisis exemption.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 40 Protection of Environment 23 2010-07-01 2010-07-01 false Duration of crisis exemption. 166.45... EXEMPTION OF FEDERAL AND STATE AGENCIES FOR USE OF PESTICIDES UNDER EMERGENCY CONDITIONS Crisis Exemptions § 166.45 Duration of crisis exemption. A crisis exemption may be authorized for: (a) Only as long as...

  11. 7 CFR 4279.166-4279.172 - [Reserved

    Code of Federal Regulations, 2013 CFR

    2013-01-01

    ... 7 Agriculture 15 2013-01-01 2013-01-01 false 4279.166-4279.172 Section 4279.166-4279.172 Agriculture Regulations of the Department of Agriculture (Continued) RURAL BUSINESS-COOPERATIVE SERVICE AND RURAL UTILITIES SERVICE, DEPARTMENT OF AGRICULTURE GUARANTEED LOANMAKING Business and Industry...

  12. 7 CFR 4279.166-4279.172 - [Reserved

    Code of Federal Regulations, 2012 CFR

    2012-01-01

    ... 7 Agriculture 15 2012-01-01 2012-01-01 false 4279.166-4279.172 Section 4279.166-4279.172 Agriculture Regulations of the Department of Agriculture (Continued) RURAL BUSINESS-COOPERATIVE SERVICE AND RURAL UTILITIES SERVICE, DEPARTMENT OF AGRICULTURE GUARANTEED LOANMAKING Business and Industry...

  13. 7 CFR 4279.166-4279.172 - [Reserved

    Code of Federal Regulations, 2014 CFR

    2014-01-01

    ... 7 Agriculture 15 2014-01-01 2014-01-01 false 4279.166-4279.172 Section 4279.166-4279.172 Agriculture Regulations of the Department of Agriculture (Continued) RURAL BUSINESS-COOPERATIVE SERVICE AND RURAL UTILITIES SERVICE, DEPARTMENT OF AGRICULTURE GUARANTEED LOANMAKING Business and Industry...

  14. 7 CFR 4279.166-4279.172 - [Reserved

    Code of Federal Regulations, 2011 CFR

    2011-01-01

    ... 7 Agriculture 15 2011-01-01 2011-01-01 false 4279.166-4279.172 Section 4279.166-4279.172 Agriculture Regulations of the Department of Agriculture (Continued) RURAL BUSINESS-COOPERATIVE SERVICE AND RURAL UTILITIES SERVICE, DEPARTMENT OF AGRICULTURE GUARANTEED LOANMAKING Business and Industry...

  15. 10 CFR 72.166 - Handling, storage, and shipping control.

    Code of Federal Regulations, 2012 CFR

    2012-01-01

    ... 10 Energy 2 2012-01-01 2012-01-01 false Handling, storage, and shipping control. 72.166 Section 72.166 Energy NUCLEAR REGULATORY COMMISSION (CONTINUED) LICENSING REQUIREMENTS FOR THE INDEPENDENT STORAGE OF SPENT NUCLEAR FUEL, HIGH-LEVEL RADIOACTIVE WASTE, AND REACTOR-RELATED GREATER THAN CLASS...

  16. 10 CFR 72.166 - Handling, storage, and shipping control.

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ... 10 Energy 2 2010-01-01 2010-01-01 false Handling, storage, and shipping control. 72.166 Section 72.166 Energy NUCLEAR REGULATORY COMMISSION (CONTINUED) LICENSING REQUIREMENTS FOR THE INDEPENDENT STORAGE OF SPENT NUCLEAR FUEL, HIGH-LEVEL RADIOACTIVE WASTE, AND REACTOR-RELATED GREATER THAN CLASS...

  17. 10 CFR 72.166 - Handling, storage, and shipping control.

    Code of Federal Regulations, 2013 CFR

    2013-01-01

    ... 10 Energy 2 2013-01-01 2013-01-01 false Handling, storage, and shipping control. 72.166 Section 72.166 Energy NUCLEAR REGULATORY COMMISSION (CONTINUED) LICENSING REQUIREMENTS FOR THE INDEPENDENT STORAGE OF SPENT NUCLEAR FUEL, HIGH-LEVEL RADIOACTIVE WASTE, AND REACTOR-RELATED GREATER THAN CLASS...

  18. 10 CFR 72.166 - Handling, storage, and shipping control.

    Code of Federal Regulations, 2011 CFR

    2011-01-01

    ... 10 Energy 2 2011-01-01 2011-01-01 false Handling, storage, and shipping control. 72.166 Section 72.166 Energy NUCLEAR REGULATORY COMMISSION (CONTINUED) LICENSING REQUIREMENTS FOR THE INDEPENDENT STORAGE OF SPENT NUCLEAR FUEL, HIGH-LEVEL RADIOACTIVE WASTE, AND REACTOR-RELATED GREATER THAN CLASS...

  19. 40 CFR 205.166 - Noise emission standards.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 40 Protection of Environment 24 2010-07-01 2010-07-01 false Noise emission standards. 205.166... PROGRAMS TRANSPORTATION EQUIPMENT NOISE EMISSION CONTROLS Motorcycle Exhaust Systems § 205.166 Noise emission standards. (a) Noise emission standards. (1) Exhaust systems and exhaust system components...

  20. 42 CFR 416.166 - Covered surgical procedures.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ....166 Public Health CENTERS FOR MEDICARE & MEDICAID SERVICES, DEPARTMENT OF HEALTH AND HUMAN SERVICES...) Generally result in extensive blood loss; (2) Require major or prolonged invasion of body cavities; (3... Payment System for ASC Services Furnished on or After January 1, 2008 § 416.166 Covered...

  1. 40 CFR 166.7 - User notification; advertising.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 40 Protection of Environment 23 2010-07-01 2010-07-01 false User notification; advertising. 166.7 Section 166.7 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) PESTICIDE PROGRAMS... received) delivers or offers to deliver any pesticide, to advertise the pesticide for any use authorized...

  2. 27 CFR 24.166 - Buildings or rooms.

    Code of Federal Regulations, 2014 CFR

    2014-04-01

    ... 27 Alcohol, Tobacco Products and Firearms 1 2014-04-01 2014-04-01 false Buildings or rooms. 24.166... OF THE TREASURY ALCOHOL WINE Construction and Equipment § 24.166 Buildings or rooms. All buildings or... afford adequate protection to the revenue. Each building or room will be constructed of...

  3. 27 CFR 24.166 - Buildings or rooms.

    Code of Federal Regulations, 2013 CFR

    2013-04-01

    ... 27 Alcohol, Tobacco Products and Firearms 1 2013-04-01 2013-04-01 false Buildings or rooms. 24.166... OF THE TREASURY ALCOHOL WINE Construction and Equipment § 24.166 Buildings or rooms. All buildings or... afford adequate protection to the revenue. Each building or room will be constructed of...

  4. 27 CFR 24.166 - Buildings or rooms.

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ... 27 Alcohol, Tobacco Products and Firearms 1 2011-04-01 2011-04-01 false Buildings or rooms. 24.166... OF THE TREASURY LIQUORS WINE Construction and Equipment § 24.166 Buildings or rooms. All buildings or... afford adequate protection to the revenue. Each building or room will be constructed of...

  5. 27 CFR 24.166 - Buildings or rooms.

    Code of Federal Regulations, 2012 CFR

    2012-04-01

    ... 27 Alcohol, Tobacco Products and Firearms 1 2012-04-01 2012-04-01 false Buildings or rooms. 24.166... OF THE TREASURY LIQUORS WINE Construction and Equipment § 24.166 Buildings or rooms. All buildings or... afford adequate protection to the revenue. Each building or room will be constructed of...

  6. 27 CFR 24.166 - Buildings or rooms.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ... 27 Alcohol, Tobacco Products and Firearms 1 2010-04-01 2010-04-01 false Buildings or rooms. 24.166... OF THE TREASURY LIQUORS WINE Construction and Equipment § 24.166 Buildings or rooms. All buildings or... afford adequate protection to the revenue. Each building or room will be constructed of...

  7. 27 CFR 20.166 - Stills and other equipment.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

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