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Sample records for ytterbium 175

  1. Ytterbium

    SciTech Connect

    1994-01-01

    The crustal abundance of ytterbium amounts to three parts per million, the same as tin, bromine and boron, and just above uranium, beryllium and arsenic. Ytterbium occurs as a minor to moderate constituent in most of the rare earth minerals. The apparent ytterbium contents of these various minerals in combination with production data for the countries involved provide the basis for calculation of the production potential for ytterbium. This potential amounts to about 40 tons per year. Much of this potential is unrealized, however, since ytterbium is only recovered when: (1) Markets exist in which it can be sold, (2) The sales price exceeds the cost of production.

  2. Atomic masses of strontium and ytterbium

    NASA Astrophysics Data System (ADS)

    Rana, Raman; Höcker, Martin; Myers, Edmund G.

    2012-11-01

    The atomic masses of the three most abundant isotopes of strontium, 86,87,88Sr, and of the six most abundant isotopes of ytterbium, 170,171,172,173,174,176Yb, have been obtained from measurements of cyclotron frequency ratios of pairs of ions simultaneously trapped in a Penning trap. Our results, with one standard deviation uncertainty, are M(86Sr) = 85.909 260 730 9 (91) u, M(87Sr) = 86.908 877 497 0 (91) u, M(88Sr) = 87.905 612 257 1 (97) u, and M(170Yb) = 169.934 767 241 (18) u, M(171Yb) = 170.936 331 514 (19) u, M(172Yb) = 171.936 386 655 (18) u, M(173Yb) = 172.938 216 213 (18) u, M(174Yb) = 173.938 867 539 (18) u, M(176Yb) = 175.942 574 702 (22) u. These results have application to photon-recoil determinations of the fine-structure constant.

  3. Photoassociative production of ultracold heteronuclear ytterbium molecules

    SciTech Connect

    Borkowski, Mateusz; Ciurylo, Roman; Yamazaki, Rekishu; Takahashi, Yoshiro; Hara, Hideaki; Taie, Shintaro; Sugawa, Seiji; Takasu, Yosuke; Enomoto, Katsunari

    2011-09-15

    We report observations of photoassociation (PA) spectra near the intercombination line in isotopic mixtures of ultracold ytterbium gases. Several heteronuclear bound states have been found for the excited {sup 170}Yb{sup 174}Yb and {sup 174}Yb{sup 176}Yb molecules. We develop a single-channel mass-scaled interaction model for the excited state molecule which well reproduces the measured bound state energies. This is an important step toward optical control of interactions in mixtures of ultracold ytterbium gases using heteronuclear optical Feshbach resonances. The model developed is applicable in collisions of other similar systems, such as cadmium and mercury.

  4. New data on activation cross section for deuteron induced reactions on ytterbium up to 50 MeV

    E-print Network

    F. Tárkányi; F. Ditrói; S. Takács; A. Hermanne; A. V. Ignatyuk

    2014-12-02

    Activation cross sections of deuteron induced reactions on ytterbium for production of $^{177g,173,172,171,170,169,167}$Lu, $^{177,175,169}$Yb and $^{173,168,167,165}$Tm were extended up to 50 MeV deuteron energy. The new data are in acceptable agreement with the earlier experimental data in the overlapping energy region. The experimental data are compared with the predictions of the ALICE-D, EMPIRE-D and TALYS 1.4 (TENDL-2013 on-line library results) codes.

  5. Experiments in the Ultracold Lithium - Ytterbium System

    NASA Astrophysics Data System (ADS)

    Khramov, Alexander

    I detail the construction of an experimental apparatus created for performing ultracold atomic experiments with fermionic lithium-6 (Li) and several isotopes of ytterbium (Yb), and several of the first experiments performed using this apparatus. The apparatus consists of a vacuum chamber, laser and auxiliary systems, which together are used to produce the first instance of trapped ultracold mixtures of lithium and ytterbium. We show that the system is stable and obtain the s-wave scattering properties of Li-Yb collisions. By using Yb to sympathetically cool Li, double quantum degeneracy is achieved. I demonstrate the versatility of the new system with several experiments. In the first, we investigate the behvaiour of Li near a broad Feshbach resonance, and modify it with Yb. In the second, we produce Yb in the metastable state, and trap it in a 1064 nm optical dipole trap, which allows for a technically simple spin polarization procedure. We then characterize the dynamics of a Li-metastable Yb mixture. The work described in this thesis provides a pathway to future extensions such as the magentic tuning of Li-Yb interactions and the production of LiYb molecules by either photo- or magnetoassociation. The potential interest of this specific system lies in the combination of alkali and spin-singlet atom, leading to a potential paramagnetic ground state molecule, and experimental realizations of systems which cannot be accessed with bialkali experiments.

  6. Optimal Design of Double-Clad Ytterbium-Doped Fiber Amplifiers Operating at 1020-1070

    E-print Network

    Wai, Ping-kong Alexander

    Optimal Design of Double-Clad Ytterbium-Doped Fiber Amplifiers Operating at 1020-1070 K. S. Tsang1 experimentally demonstrated a double- clad ytterbium-doped fiber amplifier operating at 1020 to 1070 nm. The measured gain is 27 dB and the gain variation is less than 2 dB. Keywords: fiber amplifier, ytterbium

  7. 1028 nm single mode Ytterbium-doped fiber laser

    NASA Astrophysics Data System (ADS)

    Paul, M. C.; Harun, S. W.; Moghaddam, M. R. A.; Das, S.; Sen, R.; Dhar, A.; Pal, M.; Bhadra, S. K.; Ahmad, H.

    2009-05-01

    An efficient Ytterbium-doped fiber laser (YDFL) operating at 1028 nm is demonstrated using a fiber Bragg grating (FBG). The Ytterbium-doped fiber (YDF) is drawn from Yb2O3-doped preform, fabricated through deposition of porous layer of composition SiO2-GeO2 by the MCVD process in conjunction with a solution doping technique. The fabricated YDF has a 0.1 mol % of Yb2O3 in the core, a Ytterbium ion lifetime of 1.1 ms, an absorption of 7.65 dB/m at 976 nm. The fiber laser has the maximum efficiency of 51% with pump power threshold of 19 mW using a FBG in conjunction with a Fresnel reflection to form a linear cavity resonator. The efficiency and threshold are better compared to the similar YDFL configuration using a commercial YDF.

  8. Toward IFE Oriented Laser Chains: Cryogenically Cooled Ytterbium Doped Materials

    SciTech Connect

    Bourdet, G.; Casagrande, O.; Cardinali, V.; Deguil-Robin, N.; Le Garrec, B.

    2009-09-27

    With the aim to set up Inertial Fusion Energy (IFE) driver, we develop the properties of the Ytterbium doped materials and the problems met when designing such a system: essentially thermal management and ASE gain depletion. We after present the experimental results obtained using sesquioxide Yb{sup 3+} doped ceramics at cryogenic temperature. We also propose a solution for minimizing the ASE problem.

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

    E-print Network

    C. Fry; M. Thoennessen

    2012-05-26

    Currently, 31 dysprosium, 32 holmium, 32 erbium, 33 thulium and 31 ytterbium isotopes have been observed and the discovery of these isotopes is discussed here. For each isotope a brief synopsis of the first refereed publication, including the production and identification method, is presented.

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

    E-print Network

    Fry, C

    2012-01-01

    Currently, 31 dysprosium, 32 holmium, 32 erbium, 33 thulium and 31 ytterbium isotopes have been observed and the discovery of these isotopes is discussed here. For each isotope a brief synopsis of the first refereed publication, including the production and identification method, is presented.

  11. Gain measurements at 5 nm in nickel-like ytterbium

    SciTech Connect

    MacGowan, B.J.; Bourgade, J.L.; Combis, P.; Keane, C.J.; Louis-Jacquet, M.; Matthews, D.L.; Naccache, D.; Stone, G.; Thiell, G.; Whelan, D.A.

    1988-03-01

    Soft x-ray gain has been demonstrated at 5.03 nm within a laser produced plasma of Ni-like ytterbium. Experiments will also be described with higher Z Ni-like ions which can produce even shorter wavelength x-ray laser transition. 3 refs.

  12. THEORY OF VALENCE TRANSITIONS IN YTTERBIUM-BASED COMPOUNDS

    E-print Network

    Freericks, Jim

    . INTRODUCTION The intermetallic compounds of the YbInCu§ family exhibit an isostructural transition from highChapter 1 THEORY OF VALENCE TRANSITIONS IN YTTERBIUM-BASED COMPOUNDS V. Zlati´c ¢¡ £ , and J. K of YbInCu¦ and similar compounds is modeled by the exact solution of the spin one-half Falicov

  13. 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.

  14. 40 CFR 161.175 - Certified limits.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ...161.175 Section 161.175 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) PESTICIDE PROGRAMS ...REQUIREMENTS FOR REGISTRATION OF ANTIMICROBIAL PESTICIDES Product Chemistry Data Requirements § 161.175 Certified...

  15. 40 CFR 161.175 - Certified limits.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ...161.175 Section 161.175 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) PESTICIDE PROGRAMS ...REQUIREMENTS FOR REGISTRATION OF ANTIMICROBIAL PESTICIDES Product Chemistry Data Requirements § 161.175 Certified...

  16. 40 CFR 161.175 - Certified limits.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ...161.175 Section 161.175 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) PESTICIDE PROGRAMS ...REQUIREMENTS FOR REGISTRATION OF ANTIMICROBIAL PESTICIDES Product Chemistry Data Requirements § 161.175 Certified...

  17. 40 CFR 161.175 - Certified limits.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ...161.175 Section 161.175 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) PESTICIDE PROGRAMS ...REQUIREMENTS FOR REGISTRATION OF ANTIMICROBIAL PESTICIDES Product Chemistry Data Requirements § 161.175 Certified...

  18. 46 CFR 45.175 - Applicable routes.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ...2010-10-01 2010-10-01 false Applicable routes. 45.175 Section 45.175 Shipping...LINES Unmanned River Barges on Lake Michigan Routes § 45.175 Applicable routes. This subpart applies to the following...

  19. Collisional Perturbation of States in Atomic Ytterbium By Derek F. Kimball

    E-print Network

    Budker, Dmitry

    : Ytterbium Hollow Cathode Lamp.......................................24 A. Introduction..........................................................................24 B. Hollow Cathode Lamp Characteristics..........................................25 C. Features Hollow Cathode Lamp.............27 1. HCL Voltage and Optogalvanic Signal vs. Current

  20. New ytterbium-phosphate glass for diode-pumped lasers

    SciTech Connect

    Galagan, B I; Glushchenko, I N; Denker, B I; Sverchkov, S E; Kisel', V E; Kuril'chik, S V; Kuleshov, N V

    2009-10-31

    A new ytterbium laser glass based on an alumoborophosphate composition is developed. It is shown that the chemical and thermal stabilities of this glass are record-high for phosphate glasses and that its spectral and luminescent characteristics compare well with popular laser glasses. A mould of laser-quality glass doped with ytterbium with a concentration of 5x10{sup 20} cm{sup -3} is synthesised. Active laser elements 5x5x2 mm in size are prepared from this glass for longitudinal diode pumping. These elements were used to fabricate a laser, whose output power in the cw regime reached 783 mW and maximum slope efficiency was 28.9%. Pulses with a duration of {approx}150 fs and a peak power of about 5 kW are obtained in the passive mode-locking regime. (active media)

  1. Photo darkening in ytterbium co-doped silica material

    NASA Astrophysics Data System (ADS)

    Mattsson, Kent Erik; Nissen Knudsen, Stig; Cadier, Benoit; Robin, Thierry

    2008-02-01

    A model description of photo darkening based on 30 characterised fibres in an un-seeded amplifier setup is presented. Photo darkening of ytterbium / aluminium and/or phosphorous co-doped silica fibres is found to saturate following prolonged exposure to pump radiation. The photo darkening is associated with non-binding oxygen at surfaces of ytterbium / aluminium clusters. The dominant colour centre at near infrared wavelengths in MCVD material is a combination of 1.9 eV (FWHM of 0.62 eV) and 2.4 eV (FWHM of 0.85 eV) absorption dependent on average phonon energy of the glass material.

  2. Low frequency noise distributed-feedback ytterbium fibre laser

    SciTech Connect

    Nikulin, M A; Babin, S A; Kablukov, S I; Dmitriev, Aleksandr K; Dychkov, Aleksandr S; Lugovoy, Aleksei A; Pecherskii, Yu Ya

    2009-10-31

    We report a single-frequency 1-W fibre laser source emitting at 1093 nm, composed of a distributed-feedback ytterbium fibre laser and fibre-optic amplifier. The laser frequency was stabilised by side-locking to a transmission peak of a Fabry - Perot interferometer, and the residual frequency noise spectrum of the laser was measured. Our results indicate that the laser linewidth can be narrowed down below 1 kHz. (lasers)

  3. LBNL-42730 1 Collisional Perturbation of States in Atomic Ytterbium by Helium and Neon

    E-print Network

    Budker, Dmitry

    LBNL-42730 1 Collisional Perturbation of States in Atomic Ytterbium by Helium and Neon D in atomic ytterbium by helium and neon buffer gases are reported. We find upper limits for the quenching and neon. PACS numbers: 34, 11.30.Er, 42.62.Fi (Submitted to Phys. Rev. A) 1. INTRODUCTION The 6s2 1 S0 6s

  4. Letter to the Editor Bulk metallic glasses based on ytterbium and calcium

    E-print Network

    Zheng, Yufeng

    report the formation of a family of bulk metallic glasses (BMGs) based on rare earth element of ytterbiumLetter to the Editor Bulk metallic glasses based on ytterbium and calcium J.Q. Wang a , J.Y. Qin b Received in revised form 25 October 2010 Available online 14 December 2010 Keywords: Metallic glass We

  5. Luminescence and photoinduced absorption in ytterbium-doped optical fibres

    SciTech Connect

    Rybaltovsky, A A; Aleshkina, S S; Likhachev, M E; Bubnov, M M; Umnikov, A A; Yashkov, M V; Gur'yanov, Aleksei N; Dianov, Evgenii M

    2011-12-31

    Photochemical reactions induced in the glass network of an ytterbium-doped fibre core by IR laser pumping and UV irradiation have been investigated by analysing absorption and luminescence spectra. We have performed comparative studies of the photoinduced absorption and luminescence spectra of fibre preforms differing in core glass composition: Al{sub 2}O{sub 3} : SiO{sub 2}, Al{sub 2}O{sub 3} : Yb{sub 2}O{sub 3} : SiO{sub 2}, and P{sub 2}O{sub 5} : Yb{sub 2}O{sub 3} : SiO{sub 2}. The UV absorption spectra of unirradiated preform core samples show strong bands peaking at 5.1 and 6.5 eV, whose excitation plays a key role in photoinduced colour centre generation in the glass network. 'Direct' UV excitation of the 5.1- and 6.5-eV absorption bands at 244 and 193 nm leads to the reduction of some of the Yb{sup 3+} ions to Yb{sup 2+}. The photodarkening of ytterbium-doped fibres by IR pumping is shown to result from oxygen hole centre generation. A phenomenological model is proposed for the IR-pumping-induced photodarkening of ytterbium-doped fibres. The model predicts that colour centre generation in the core glass network and the associated absorption in the visible range result from a cooperative effect involving simultaneous excitation of a cluster composed of several closely spaced Yb{sup 3+} ions.

  6. Q-switched distributed-Bragg-reflector ytterbium laser

    NASA Astrophysics Data System (ADS)

    Ouslimani, H.; Bastard, L.; Broquin, J.-E.

    2013-03-01

    A passively Q-switched distributed-Bragg-reflector laser made in glass integrated optics technology, and operating around 1030 nm, is designed, realized and investigated. The laser is formed by an ion-exchanged single mode waveguide realized in an Ytterbium doped phosphate glass. The Q-switching behavior is obtained by hybridizing a saturable absorber film on the waveguides. This allows the realization of a short and simple laser cavity having both pulsed and a narrow linewidth emission. Its experimental characterization leads to the observation of a stable repetition rate of 12.5 kHz and a stable pulse duration of 9.2 ns FWHM.

  7. Waveguide lasers in ytterbium-doped tantalum pentoxide on silicon.

    PubMed

    Aghajani, A; Murugan, G S; Sessions, N P; Apostolopoulos, V; Wilkinson, J S

    2015-06-01

    A waveguide laser in an ytterbium-doped tantalum pentoxide film is reported. The waveguide is formed of a rib of sputtered tantalum pentoxide on top of oxidized silicon with an over-cladding of silica. Emission at a wavelength of 1025 nm was achieved with an absorbed pump power threshold and slope efficiency of ?29??mW and 27%, respectively, for a cavity formed by a high reflector mirror and an estimated 12% Fresnel reflection from the bare end-face at the output. PMID:26030554

  8. 33 CFR 175.135 - Existing equipment.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ...equipment. Launchers manufactured before 1 January, 1981, which do not have approval numbers are acceptable for use with meteor or parachute signals listed in Table 175.130 under § 175.130 as long as they remain in serviceable condition....

  9. 33 CFR 175.135 - Existing equipment.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ...equipment. Launchers manufactured before 1 January, 1981, which do not have approval numbers are acceptable for use with meteor or parachute signals listed in Table 175.130 under § 175.130 as long as they remain in serviceable condition....

  10. 33 CFR 175.135 - Existing equipment.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ...equipment. Launchers manufactured before 1 January, 1981, which do not have approval numbers are acceptable for use with meteor or parachute signals listed in Table 175.130 under § 175.130 as long as they remain in serviceable condition....

  11. 33 CFR 175.135 - Existing equipment.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ...equipment. Launchers manufactured before 1 January, 1981, which do not have approval numbers are acceptable for use with meteor or parachute signals listed in Table 175.130 under § 175.130 as long as they remain in serviceable condition....

  12. 33 CFR 175.135 - Existing equipment.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ...equipment. Launchers manufactured before 1 January, 1981, which do not have approval numbers are acceptable for use with meteor or parachute signals listed in Table 175.130 under § 175.130 as long as they remain in serviceable condition....

  13. 21 CFR 172.175 - Sodium nitrite.

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ... 21 Food and Drugs 3 2011-04-01 2011-04-01 false Sodium nitrite. 172.175 Section 172.175 Food and... Preservatives § 172.175 Sodium nitrite. The food additive sodium nitrite may be safely used in or on specified... follows: (1) As a color fixative in smoked cured tunafish products so that the level of sodium...

  14. 21 CFR 172.175 - Sodium nitrite.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ... 21 Food and Drugs 3 2010-04-01 2009-04-01 true Sodium nitrite. 172.175 Section 172.175 Food and... Preservatives § 172.175 Sodium nitrite. The food additive sodium nitrite may be safely used in or on specified... follows: (1) As a color fixative in smoked cured tunafish products so that the level of sodium...

  15. 21 CFR 172.175 - Sodium nitrite.

    Code of Federal Regulations, 2012 CFR

    2012-04-01

    ... 21 Food and Drugs 3 2012-04-01 2012-04-01 false Sodium nitrite. 172.175 Section 172.175 Food and... Preservatives § 172.175 Sodium nitrite. The food additive sodium nitrite may be safely used in or on specified... follows: (1) As a color fixative in smoked cured tunafish products so that the level of sodium...

  16. 21 CFR 172.175 - Sodium nitrite.

    Code of Federal Regulations, 2013 CFR

    2013-04-01

    ... 21 Food and Drugs 3 2013-04-01 2013-04-01 false Sodium nitrite. 172.175 Section 172.175 Food and... Preservatives § 172.175 Sodium nitrite. The food additive sodium nitrite may be safely used in or on specified... follows: (1) As a color fixative in smoked cured tunafish products so that the level of sodium...

  17. 21 CFR 172.175 - Sodium nitrite.

    Code of Federal Regulations, 2014 CFR

    2014-04-01

    ... 21 Food and Drugs 3 2014-04-01 2014-04-01 false Sodium nitrite. 172.175 Section 172.175 Food and... PERMITTED FOR DIRECT ADDITION TO FOOD FOR HUMAN CONSUMPTION Food Preservatives § 172.175 Sodium nitrite. The food additive sodium nitrite may be safely used in or on specified foods in accordance with...

  18. 43 CFR 17.5 - Compliance information.

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ... 43 Public Lands: Interior 1 2014-10-01 2014-10-01 false Compliance information. 17.5 Section 17.5... Origin § 17.5 Compliance information. (a) Cooperation and assistance. The Secretary or his designee shall... containing such information, as the Secretary or his designee may determine to be necessary to enable him...

  19. 33 CFR 117.175 - Mokelumne River.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ...2011-07-01 2011-07-01 false Mokelumne River. 117.175 Section 117.175 Navigation... California § 117.175 Mokelumne River. (a) The draw of the California...Transportation highway bridge, the Mokelumne River Bridge, mile 3.0, at East...

  20. 33 CFR 117.175 - Mokelumne River.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ...2012-07-01 2012-07-01 false Mokelumne River. 117.175 Section 117.175 Navigation... California § 117.175 Mokelumne River. (a) The draw of the California...Transportation highway bridge, the Mokelumne River Bridge, mile 3.0, at East...

  1. 33 CFR 117.175 - Mokelumne River.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ...2010-07-01 2010-07-01 false Mokelumne River. 117.175 Section 117.175 Navigation... California § 117.175 Mokelumne River. (a) The draw of the California...Transportation highway bridge, the Mokelumne River Bridge, mile 3.0, at East...

  2. 25 CFR 175.51 - Ownership.

    Code of Federal Regulations, 2014 CFR

    2014-04-01

    ... 25 Indians 1 2014-04-01 2014-04-01 false Ownership. 175.51 Section 175.51 Indians BUREAU OF INDIAN AFFAIRS, DEPARTMENT OF THE INTERIOR LAND AND WATER INDIAN ELECTRIC POWER UTILITIES Rights-of-Way § 175.51 Ownership. All rights-of-way, material, or equipment furnished and/or installed by a customer pursuant...

  3. 25 CFR 175.51 - Ownership.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ... 25 Indians 1 2010-04-01 2010-04-01 false Ownership. 175.51 Section 175.51 Indians BUREAU OF INDIAN AFFAIRS, DEPARTMENT OF THE INTERIOR LAND AND WATER INDIAN ELECTRIC POWER UTILITIES Rights-of-Way § 175.51 Ownership. All rights-of-way, material, or equipment furnished and/or installed by a customer pursuant...

  4. 25 CFR 175.20 - Gratuities.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ... 25 Indians 1 2010-04-01 2010-04-01 false Gratuities. 175.20 Section 175.20 Indians BUREAU OF INDIAN AFFAIRS, DEPARTMENT OF THE INTERIOR LAND AND WATER INDIAN ELECTRIC POWER UTILITIES Utility Service Administration § 175.20 Gratuities. All employees of the utility are forbidden to accept from a customer...

  5. 25 CFR 175.5 - Operations manual.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ... 25 Indians 1 2010-04-01 2010-04-01 false Operations manual. 175.5 Section 175.5 Indians BUREAU OF INDIAN AFFAIRS, DEPARTMENT OF THE INTERIOR LAND AND WATER INDIAN ELECTRIC POWER UTILITIES General Provisions § 175.5 Operations manual. (a) The Area Director shall establish an operations manual for...

  6. 25 CFR 175.24 - Utility responsibilities.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ... 25 Indians 1 2010-04-01 2010-04-01 false Utility responsibilities. 175.24 Section 175.24 Indians BUREAU OF INDIAN AFFAIRS, DEPARTMENT OF THE INTERIOR LAND AND WATER INDIAN ELECTRIC POWER UTILITIES Utility Service Administration § 175.24 Utility responsibilities. A utility subject to this part shall:...

  7. 21 CFR 172.175 - Sodium nitrite.

    Code of Federal Regulations, 2013 CFR

    2013-04-01

    ...3 2013-04-01 2013-04-01 false Sodium nitrite. 172.175 Section 172.175 Food...CONSUMPTION Food Preservatives § 172.175 Sodium nitrite. The food additive sodium nitrite may be safely used in or on...

  8. 21 CFR 172.175 - Sodium nitrite.

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ...3 2011-04-01 2011-04-01 false Sodium nitrite. 172.175 Section 172.175 Food...CONSUMPTION Food Preservatives § 172.175 Sodium nitrite. The food additive sodium nitrite may be safely used in or on...

  9. 21 CFR 172.175 - Sodium nitrite.

    Code of Federal Regulations, 2012 CFR

    2012-04-01

    ...3 2012-04-01 2012-04-01 false Sodium nitrite. 172.175 Section 172.175 Food...CONSUMPTION Food Preservatives § 172.175 Sodium nitrite. The food additive sodium nitrite may be safely used in or on...

  10. 21 CFR 172.175 - Sodium nitrite.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ... 3 2010-04-01 2009-04-01 true Sodium nitrite. 172.175 Section 172.175 Food...CONSUMPTION Food Preservatives § 172.175 Sodium nitrite. The food additive sodium nitrite may be safely used in or on...

  11. 21 CFR 172.175 - Sodium nitrite.

    Code of Federal Regulations, 2014 CFR

    2014-04-01

    ...3 2014-04-01 2014-04-01 false Sodium nitrite. 172.175 Section 172.175 Food...CONSUMPTION Food Preservatives § 172.175 Sodium nitrite. The food additive sodium nitrite may be safely used in or on...

  12. 28 CFR 35.175 - Attorney's fees.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... 28 Judicial Administration 1 2013-07-01 2013-07-01 false Attorney's fees. 35.175 Section 35.175... LOCAL GOVERNMENT SERVICES Compliance Procedures § 35.175 Attorney's fees. In any action or... allow the prevailing party, other than the United States, a reasonable attorney's fee,...

  13. 46 CFR 108.175 - Contiguous locations.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... 46 Shipping 4 2010-10-01 2010-10-01 false Contiguous locations. 108.175 Section 108.175 Shipping COAST GUARD, DEPARTMENT OF HOMELAND SECURITY (CONTINUED) A-MOBILE OFFSHORE DRILLING UNITS DESIGN AND EQUIPMENT Construction and Arrangement Classified Locations § 108.175 Contiguous locations. An...

  14. 46 CFR 108.175 - Contiguous locations.

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ... 46 Shipping 4 2011-10-01 2011-10-01 false Contiguous locations. 108.175 Section 108.175 Shipping COAST GUARD, DEPARTMENT OF HOMELAND SECURITY (CONTINUED) A-MOBILE OFFSHORE DRILLING UNITS DESIGN AND EQUIPMENT Construction and Arrangement Classified Locations § 108.175 Contiguous locations. An enclosed space that has direct access to a Division...

  15. 33 CFR 175.23 - Serviceable condition.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 33 Navigation and Navigable Waters 2 2010-07-01 2010-07-01 false Serviceable condition. 175.23...) BOATING SAFETY EQUIPMENT REQUIREMENTS Personal Flotation Devices § 175.23 Serviceable condition. A PFD is considered to be in serviceable condition for purposes of § 175.21(a) only if the following conditions...

  16. 33 CFR 175.23 - Serviceable condition.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... 33 Navigation and Navigable Waters 2 2011-07-01 2011-07-01 false Serviceable condition. 175.23...) BOATING SAFETY EQUIPMENT REQUIREMENTS Personal Flotation Devices § 175.23 Serviceable condition. A PFD is considered to be in serviceable condition for purposes of § 175.21(a) only if the following conditions...

  17. 25 CFR 175.23 - Customer responsibilities.

    Code of Federal Regulations, 2014 CFR

    2014-04-01

    ... Utility Service Administration § 175.23 Customer responsibilities. The customer(s) of a utility subject to... 25 Indians 1 2014-04-01 2014-04-01 false Customer responsibilities. 175.23 Section 175.23 Indians... they apply to the installation and operation of customer-owned equipment; (b) Be responsible...

  18. 25 CFR 175.23 - Customer responsibilities.

    Code of Federal Regulations, 2012 CFR

    2012-04-01

    ... Utility Service Administration § 175.23 Customer responsibilities. The customer(s) of a utility subject to... 25 Indians 1 2012-04-01 2011-04-01 true Customer responsibilities. 175.23 Section 175.23 Indians... they apply to the installation and operation of customer-owned equipment; (b) Be responsible...

  19. 25 CFR 175.23 - Customer responsibilities.

    Code of Federal Regulations, 2013 CFR

    2013-04-01

    ... Utility Service Administration § 175.23 Customer responsibilities. The customer(s) of a utility subject to... 25 Indians 1 2013-04-01 2013-04-01 false Customer responsibilities. 175.23 Section 175.23 Indians... they apply to the installation and operation of customer-owned equipment; (b) Be responsible...

  20. 25 CFR 175.23 - Customer responsibilities.

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ... Utility Service Administration § 175.23 Customer responsibilities. The customer(s) of a utility subject to... 25 Indians 1 2011-04-01 2011-04-01 false Customer responsibilities. 175.23 Section 175.23 Indians... they apply to the installation and operation of customer-owned equipment; (b) Be responsible...

  1. 25 CFR 175.23 - Customer responsibilities.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ... Utility Service Administration § 175.23 Customer responsibilities. The customer(s) of a utility subject to... 25 Indians 1 2010-04-01 2010-04-01 false Customer responsibilities. 175.23 Section 175.23 Indians... they apply to the installation and operation of customer-owned equipment; (b) Be responsible...

  2. 49 CFR 175.705 - Radioactive contamination.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... 49 Transportation 2 2010-10-01 2010-10-01 false Radioactive contamination. 175.705 Section 175.705... Regulations Applicable According to Classification of Material § 175.705 Radioactive contamination. (a) A... (radioactive) materials that may have been released from their packagings. (b) When contamination is present...

  3. 2 CFR 175.10 - Statutory requirement.

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ... 2 Grants and Agreements 1 2010-01-01 2010-01-01 false Statutory requirement. 175.10 Section 175.10 Grants and Agreements OFFICE OF MANAGEMENT AND BUDGET GOVERNMENTWIDE GUIDANCE FOR GRANTS AND AGREEMENTS Reserved AWARD TERM FOR TRAFFICKING IN PERSONS § 175.10 Statutory requirement. In each agency award...

  4. 2 CFR 175.20 - Referral.

    Code of Federal Regulations, 2011 CFR

    2011-01-01

    ... 2 Grants and Agreements 1 2011-01-01 2011-01-01 false Referral. 175.20 Section 175.20 Grants and Agreements Office of Management and Budget Guidance for Grants and Agreements OFFICE OF MANAGEMENT AND BUDGET GOVERNMENTWIDE GUIDANCE FOR GRANTS AND AGREEMENTS AWARD TERM FOR TRAFFICKING IN PERSONS § 175.20 Referral....

  5. 2 CFR 175.20 - Referral.

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ... 2 Grants and Agreements 1 2010-01-01 2010-01-01 false Referral. 175.20 Section 175.20 Grants and Agreements OFFICE OF MANAGEMENT AND BUDGET GOVERNMENTWIDE GUIDANCE FOR GRANTS AND AGREEMENTS Reserved AWARD TERM FOR TRAFFICKING IN PERSONS § 175.20 Referral. An agency official should inform the...

  6. 25 CFR 175.3 - Compliance.

    Code of Federal Regulations, 2014 CFR

    2014-04-01

    ... 25 Indians 1 2014-04-01 2014-04-01 false Compliance. 175.3 Section 175.3 Indians BUREAU OF INDIAN AFFAIRS, DEPARTMENT OF THE INTERIOR LAND AND WATER INDIAN ELECTRIC POWER UTILITIES General Provisions § 175.3 Compliance. All utility customers and the utilities are bound by the rule in this part....

  7. 25 CFR 175.3 - Compliance.

    Code of Federal Regulations, 2013 CFR

    2013-04-01

    ... 25 Indians 1 2013-04-01 2013-04-01 false Compliance. 175.3 Section 175.3 Indians BUREAU OF INDIAN AFFAIRS, DEPARTMENT OF THE INTERIOR LAND AND WATER INDIAN ELECTRIC POWER UTILITIES General Provisions § 175.3 Compliance. All utility customers and the utilities are bound by the rule in this part....

  8. 25 CFR 175.3 - Compliance.

    Code of Federal Regulations, 2012 CFR

    2012-04-01

    ... 25 Indians 1 2012-04-01 2011-04-01 true Compliance. 175.3 Section 175.3 Indians BUREAU OF INDIAN AFFAIRS, DEPARTMENT OF THE INTERIOR LAND AND WATER INDIAN ELECTRIC POWER UTILITIES General Provisions § 175.3 Compliance. All utility customers and the utilities are bound by the rule in this part....

  9. 25 CFR 175.2 - Purpose.

    Code of Federal Regulations, 2013 CFR

    2013-04-01

    ... 25 Indians 1 2013-04-01 2013-04-01 false Purpose. 175.2 Section 175.2 Indians BUREAU OF INDIAN AFFAIRS, DEPARTMENT OF THE INTERIOR LAND AND WATER INDIAN ELECTRIC POWER UTILITIES General Provisions § 175.2 Purpose. The purpose of this part is to regulate the electric power utilities administered...

  10. 25 CFR 175.2 - Purpose.

    Code of Federal Regulations, 2014 CFR

    2014-04-01

    ... 25 Indians 1 2014-04-01 2014-04-01 false Purpose. 175.2 Section 175.2 Indians BUREAU OF INDIAN AFFAIRS, DEPARTMENT OF THE INTERIOR LAND AND WATER INDIAN ELECTRIC POWER UTILITIES General Provisions § 175.2 Purpose. The purpose of this part is to regulate the electric power utilities administered...

  11. 25 CFR 175.2 - Purpose.

    Code of Federal Regulations, 2012 CFR

    2012-04-01

    ... 25 Indians 1 2012-04-01 2011-04-01 true Purpose. 175.2 Section 175.2 Indians BUREAU OF INDIAN AFFAIRS, DEPARTMENT OF THE INTERIOR LAND AND WATER INDIAN ELECTRIC POWER UTILITIES General Provisions § 175.2 Purpose. The purpose of this part is to regulate the electric power utilities administered...

  12. 25 CFR 175.3 - Compliance.

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ... 25 Indians 1 2011-04-01 2011-04-01 false Compliance. 175.3 Section 175.3 Indians BUREAU OF INDIAN AFFAIRS, DEPARTMENT OF THE INTERIOR LAND AND WATER INDIAN ELECTRIC POWER UTILITIES General Provisions § 175.3 Compliance. All utility customers and the utilities are bound by the rule in this part....

  13. 25 CFR 175.2 - Purpose.

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ... 25 Indians 1 2011-04-01 2011-04-01 false Purpose. 175.2 Section 175.2 Indians BUREAU OF INDIAN AFFAIRS, DEPARTMENT OF THE INTERIOR LAND AND WATER INDIAN ELECTRIC POWER UTILITIES General Provisions § 175.2 Purpose. The purpose of this part is to regulate the electric power utilities administered...

  14. 25 CFR 175.2 - Purpose.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ... 25 Indians 1 2010-04-01 2010-04-01 false Purpose. 175.2 Section 175.2 Indians BUREAU OF INDIAN AFFAIRS, DEPARTMENT OF THE INTERIOR LAND AND WATER INDIAN ELECTRIC POWER UTILITIES General Provisions § 175.2 Purpose. The purpose of this part is to regulate the electric power utilities administered...

  15. 25 CFR 175.3 - Compliance.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ... 25 Indians 1 2010-04-01 2010-04-01 false Compliance. 175.3 Section 175.3 Indians BUREAU OF INDIAN AFFAIRS, DEPARTMENT OF THE INTERIOR LAND AND WATER INDIAN ELECTRIC POWER UTILITIES General Provisions § 175.3 Compliance. All utility customers and the utilities are bound by the rule in this part....

  16. Quantum degenerate mixture of ytterbium and lithium atoms

    NASA Astrophysics Data System (ADS)

    Hansen, Anders H.; Khramov, Alexander; Dowd, William H.; Jamison, Alan O.; Ivanov, Vladyslav V.; Gupta, Subhadeep

    2011-07-01

    We have produced a quantum degenerate mixture of fermionic alkali-metal 6Li and bosonic spin-singlet 174Yb gases. This was achieved using sympathetic cooling of lithium atoms by evaporatively cooled ytterbium atoms in a far-off-resonant optical dipole trap. We observe the coexistence of Bose-condensed (T/Tc?0.8) 174Yb with 2.3×104 atoms and Fermi degenerate (T/TF?0.3) 6Li with 1.2×104 atoms. Quasipure Bose-Einstein condensates of up to 3×104 174Yb atoms can be produced in single-species experiments. Our results mark a significant step toward studies of few- and many-body physics with mixtures of alkali-metal and alkaline-earth-metal-like atoms, and for the production of paramagnetic polar molecules in the quantum regime. Our methods also establish a convenient scheme for producing quantum degenerate ytterbium atoms in a 1064 nm optical dipole trap.

  17. Passively Q-switched Ytterbium and Chromium all-fibre laser

    E-print Network

    Dussardier, Bernard; Peterka, Pavel

    2012-01-01

    A chromium-doped saturable absorber fibre stabilizes an otherwise spontaneously chaotic ytterbium- doped fibre laser. This original passively Q-switched all-fibre laser produces sustained and stable trains of smooth pulses at high repetition rate.

  18. Photonic bandgap single-mode optical fibre with ytterbium-doped silica glass core

    SciTech Connect

    Egorova, O N; Semenov, S L; Vel'miskin, V V; Dianov, Evgenii M; Salganskii, M Yu; Yashkov, M V; Gur'yanov, Aleksei N

    2011-01-24

    A photonic bandgap fibre with an ytterbium-doped silica glass core is fabricated and investigated. The possibility of implementing single-mode operation of such fibres in a wide spectral range at a large (above 20 {mu}m) mode field diameter makes them promising for fibre lasers and amplifiers. To ensure a high quality of the beam emerging from the fibre, particular attention is paid to increasing the optical homogeneity of the ytterbium-doped core glass. (optical fibres)

  19. Atomic layer deposition for fabrication of ytterbium doped fibers

    NASA Astrophysics Data System (ADS)

    Montiel i Ponsoda, Joan J.; Norin, Lars; Bosund, Markus; Ye, Changgeng; Söderlund, Mikko J.; Tervonen, Ari; Honkanen, Seppo

    2012-02-01

    Atomic layer deposition (ALD) was used to fabricate an ytterbium (Yb)-doped silica fiber in combination with the conventional modified chemical vapor deposition (MCVD) method. An MCVD soot-preform with a porous layer of SiO2 doped with GeO2 was coated with layers of Yb2O3 and Al2O3 prior to sintering, using the ALD method. ALD is a surface controlled CVD-type process enabling thin film deposition over large substrates with good thickness control, uniformity and high conformality. A materials analysis study showed that the dopants successfully penetrated the full thickness of 320 ?m of the soot layer. Preliminary preform and fiber experiments on refractive index profiles, background losses, lifetime and the characteristic gain-loss curve were performed demonstrating the potential of this method for fabricating Yb-doped fibers with high concentration of dopants.

  20. 31 CFR 103.175 - Definitions.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 31 Money and Finance: Treasury 1 2010-07-01 2010-07-01 false Definitions. 103.175 Section 103.175 Money and Finance: Treasury Regulations Relating to Money and Finance FINANCIAL RECORDKEEPING AND REPORTING OF CURRENCY AND FOREIGN TRANSACTIONS Anti-Money Laundering Programs Special Due Diligence...

  1. 21 CFR 137.175 - Phosphated flour.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ... 21 Food and Drugs 2 2010-04-01 2010-04-01 false Phosphated flour. 137.175 Section 137.175 Food and Drugs FOOD AND DRUG ADMINISTRATION, DEPARTMENT OF HEALTH AND HUMAN SERVICES (CONTINUED) FOOD FOR HUMAN CONSUMPTION CEREAL FLOURS AND RELATED PRODUCTS Requirements for Specific Standardized Cereal Flours...

  2. 33 CFR 117.175 - Mokelumne River.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... 33 Navigation and Navigable Waters 1 2013-07-01 2013-07-01 false Mokelumne River. 117.175 Section... DRAWBRIDGE OPERATION REGULATIONS Specific Requirements California § 117.175 Mokelumne River. (a) The draw of the California Department of Transportation highway bridge, the Mokelumne River Bridge, mile 3.0,...

  3. 33 CFR 117.175 - Mokelumne River.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... 33 Navigation and Navigable Waters 1 2012-07-01 2012-07-01 false Mokelumne River. 117.175 Section... DRAWBRIDGE OPERATION REGULATIONS Specific Requirements California § 117.175 Mokelumne River. (a) The draw of the California Department of Transportation highway bridge, the Mokelumne River Bridge, mile 3.0,...

  4. 33 CFR 117.175 - Mokelumne River.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... 33 Navigation and Navigable Waters 1 2011-07-01 2011-07-01 false Mokelumne River. 117.175 Section... DRAWBRIDGE OPERATION REGULATIONS Specific Requirements California § 117.175 Mokelumne River. (a) The draw of the California Department of Transportation highway bridge, the Mokelumne River Bridge, mile 3.0,...

  5. 33 CFR 117.175 - Mokelumne River.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 33 Navigation and Navigable Waters 1 2010-07-01 2010-07-01 false Mokelumne River. 117.175 Section... DRAWBRIDGE OPERATION REGULATIONS Specific Requirements California § 117.175 Mokelumne River. (a) The draw of the California Department of Transportation highway bridge, the Mokelumne River Bridge, mile 3.0,...

  6. 33 CFR 117.175 - Mokelumne River.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... 33 Navigation and Navigable Waters 1 2014-07-01 2014-07-01 false Mokelumne River. 117.175 Section... DRAWBRIDGE OPERATION REGULATIONS Specific Requirements California § 117.175 Mokelumne River. (a) The draw of the California Department of Transportation highway bridge, the Mokelumne River Bridge, mile 3.0,...

  7. 25 CFR 175.32 - Collections.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ... 25 Indians 1 2010-04-01 2010-04-01 false Collections. 175.32 Section 175.32 Indians BUREAU OF INDIAN AFFAIRS, DEPARTMENT OF THE INTERIOR LAND AND WATER INDIAN ELECTRIC POWER UTILITIES Billing... service. Only legal tender, a cashier's check, or a money order shall be accepted by the utility to...

  8. OCEAN DRILLING PROGRAM LEG 175 PRELIMINARY REPORT

    E-print Network

    OCEAN DRILLING PROGRAM LEG 175 PRELIMINARY REPORT BENGUELA CURRENT Dr. Wolfgang Berger Co, Texas 77845-9547 U.S.A. __________________ Paul J. Fox Director of Science Operations ODP The following scientists were aboard the JOIDES Resolution for Leg 175 of the Ocean Drilling Program: Wolfgang

  9. 40 CFR 161.175 - Certified limits.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... 40 Protection of Environment 25 2012-07-01 2012-07-01 false Certified limits. 161.175 Section 161.175 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) PESTICIDE PROGRAMS DATA REQUIREMENTS FOR REGISTRATION OF ANTIMICROBIAL PESTICIDES Product Chemistry Data Requirements §...

  10. 40 CFR 161.175 - Certified limits.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... 40 Protection of Environment 25 2013-07-01 2013-07-01 false Certified limits. 161.175 Section 161.175 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) PESTICIDE PROGRAMS DATA REQUIREMENTS FOR REGISTRATION OF ANTIMICROBIAL PESTICIDES Product Chemistry Data Requirements §...

  11. 2 CFR 175.20 - Referral.

    Code of Federal Regulations, 2014 CFR

    2014-01-01

    ... 2 Grants and Agreements 1 2014-01-01 2014-01-01 false Referral. 175.20 Section 175.20 Grants and Agreements Office of Management and Budget Guidance for Grants and Agreements OFFICE OF MANAGEMENT AND BUDGET GOVERNMENTWIDE GUIDANCE FOR GRANTS AND AGREEMENTS Reserved AWARD TERM FOR TRAFFICKING IN PERSONS §...

  12. 2 CFR 175.10 - Statutory requirement.

    Code of Federal Regulations, 2011 CFR

    2011-01-01

    ... 2 Grants and Agreements 1 2011-01-01 2011-01-01 false Statutory requirement. 175.10 Section 175.10 Grants and Agreements Office of Management and Budget Guidance for Grants and Agreements OFFICE OF MANAGEMENT AND BUDGET GOVERNMENTWIDE GUIDANCE FOR GRANTS AND AGREEMENTS AWARD TERM FOR TRAFFICKING IN...

  13. 2 CFR 175.20 - Referral.

    Code of Federal Regulations, 2012 CFR

    2012-01-01

    ... 2 Grants and Agreements 1 2012-01-01 2012-01-01 false Referral. 175.20 Section 175.20 Grants and Agreements Office of Management and Budget Guidance for Grants and Agreements OFFICE OF MANAGEMENT AND BUDGET GOVERNMENTWIDE GUIDANCE FOR GRANTS AND AGREEMENTS NATIONAL POLICY REQUIREMENTS AWARD TERM FOR TRAFFICKING...

  14. 2 CFR 175.25 - Definitions.

    Code of Federal Regulations, 2014 CFR

    2014-01-01

    ... 2 Grants and Agreements 1 2014-01-01 2014-01-01 false Definitions. 175.25 Section 175.25 Grants... means: (1) A foreign government or foreign governmental entity; (2) A public international organization...) Local government means a: (1) County; (2) Borough; (3) Municipality; (4) City; (5) Town; (6)...

  15. 2 CFR 175.25 - Definitions.

    Code of Federal Regulations, 2013 CFR

    2013-01-01

    ... 2 Grants and Agreements 1 2013-01-01 2013-01-01 false Definitions. 175.25 Section 175.25 Grants...) Foreign public entity means: (1) A foreign government or foreign governmental entity; (2) A public... of their status as Indians. (c) Local government means a: (1) County; (2) Borough; (3)...

  16. 2 CFR 175.25 - Definitions.

    Code of Federal Regulations, 2011 CFR

    2011-01-01

    ... 2 Grants and Agreements 1 2011-01-01 2011-01-01 false Definitions. 175.25 Section 175.25 Grants...: (1) A foreign government or foreign governmental entity; (2) A public international organization...) Local government means a: (1) County; (2) Borough; (3) Municipality; (4) City; (5) Town; (6)...

  17. 2 CFR 175.10 - Statutory requirement.

    Code of Federal Regulations, 2014 CFR

    2014-01-01

    ... 2 Grants and Agreements 1 2014-01-01 2014-01-01 false Statutory requirement. 175.10 Section 175.10 Grants and Agreements Office of Management and Budget Guidance for Grants and Agreements OFFICE OF MANAGEMENT AND BUDGET GOVERNMENTWIDE GUIDANCE FOR GRANTS AND AGREEMENTS Reserved AWARD TERM FOR...

  18. 2 CFR 175.10 - Statutory requirement.

    Code of Federal Regulations, 2012 CFR

    2012-01-01

    ... 2 Grants and Agreements 1 2012-01-01 2012-01-01 false Statutory requirement. 175.10 Section 175.10 Grants and Agreements Office of Management and Budget Guidance for Grants and Agreements OFFICE OF MANAGEMENT AND BUDGET GOVERNMENTWIDE GUIDANCE FOR GRANTS AND AGREEMENTS NATIONAL POLICY REQUIREMENTS...

  19. 2 CFR 175.25 - Definitions.

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ... 2 Grants and Agreements 1 2010-01-01 2010-01-01 false Definitions. 175.25 Section 175.25 Grants... follows: (a) Foreign public entity means: (1) A foreign government or foreign governmental entity; (2) A... Indians because of their status as Indians. (c) Local government means a: (1) County; (2) Borough;...

  20. 2 CFR 175.25 - Definitions.

    Code of Federal Regulations, 2012 CFR

    2012-01-01

    ... 2 Grants and Agreements 1 2012-01-01 2012-01-01 false Definitions. 175.25 Section 175.25 Grants...) Foreign public entity means: (1) A foreign government or foreign governmental entity; (2) A public... of their status as Indians. (c) Local government means a: (1) County; (2) Borough; (3)...

  1. 2 CFR 175.10 - Statutory requirement.

    Code of Federal Regulations, 2013 CFR

    2013-01-01

    ... 2 Grants and Agreements 1 2013-01-01 2013-01-01 false Statutory requirement. 175.10 Section 175.10 Grants and Agreements Office of Management and Budget Guidance for Grants and Agreements OFFICE OF MANAGEMENT AND BUDGET GOVERNMENTWIDE GUIDANCE FOR GRANTS AND AGREEMENTS NATIONAL POLICY REQUIREMENTS...

  2. 2 CFR 175.20 - Referral.

    Code of Federal Regulations, 2013 CFR

    2013-01-01

    ... 2 Grants and Agreements 1 2013-01-01 2013-01-01 false Referral. 175.20 Section 175.20 Grants and Agreements Office of Management and Budget Guidance for Grants and Agreements OFFICE OF MANAGEMENT AND BUDGET GOVERNMENTWIDE GUIDANCE FOR GRANTS AND AGREEMENTS NATIONAL POLICY REQUIREMENTS AWARD TERM FOR TRAFFICKING...

  3. 21 CFR 175.250 - Paraffin (synthetic).

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ... 21 Food and Drugs 3 2011-04-01 2011-04-01 false Paraffin (synthetic). 175.250 Section 175.250 Food and Drugs FOOD AND DRUG ADMINISTRATION, DEPARTMENT OF HEALTH AND HUMAN SERVICES (CONTINUED) FOOD FOR HUMAN CONSUMPTION (CONTINUED) INDIRECT FOOD ADDITIVES: ADHESIVES AND COMPONENTS OF COATINGS Substances for Use as Components of Coatings §...

  4. 21 CFR 175.250 - Paraffin (synthetic).

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ... 21 Food and Drugs 3 2010-04-01 2009-04-01 true Paraffin (synthetic). 175.250 Section 175.250 Food and Drugs FOOD AND DRUG ADMINISTRATION, DEPARTMENT OF HEALTH AND HUMAN SERVICES (CONTINUED) FOOD FOR HUMAN CONSUMPTION (CONTINUED) INDIRECT FOOD ADDITIVES: ADHESIVES AND COMPONENTS OF COATINGS Substances for Use as Components of Coatings §...

  5. 40 CFR 161.175 - Certified limits.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... 40 Protection of Environment 24 2011-07-01 2011-07-01 false Certified limits. 161.175 Section 161.175 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) PESTICIDE PROGRAMS DATA REQUIREMENTS FOR REGISTRATION OF ANTIMICROBIAL PESTICIDES Product Chemistry Data Requirements §...

  6. 7 CFR 1.75 - General stipulations.

    Code of Federal Regulations, 2013 CFR

    2013-01-01

    ... 7 Agriculture 1 2013-01-01 2013-01-01 false General stipulations. 1.75 Section 1.75 Agriculture Office of the Secretary of Agriculture ADMINISTRATIVE REGULATIONS Cooperative Production of Television... direct or implied, by the U.S. Department of Agriculture or its agencies, of the sponsor's product....

  7. Ytterbium-doped glass-ceramics for optical refrigeration.

    PubMed

    Filho, Elton Soares de Lima; Krishnaiah, Kummara Venkata; Ledemi, Yannick; Yu, Ye-Jin; Messaddeq, Younes; Nemova, Galina; Kashyap, Raman

    2015-02-23

    We report for the first time the characterization of glass-ceramics for optical refrigeration. Ytterbium-doped nanocrystallites were grown in an oxyfluoride glass matrix of composition 2YbF(3):30SiO(2)-15Al(2)O(3)-25CdF(2)-22PbF(2)-4YF(3), forming bulk glass-ceramics at three different crystalisation levels. The samples are compared with a corresponding uncrystalised (glass) sample, as well as a Yb:YAG sample which has presented optical cooling. The measured X-ray diffraction spectra, and thermal capacities of the samples are reported. We also report for the first time the use of Yb:YAG as a reference for absolute photometric quantum efficiency measurement, and use the same setup to characterize the glass and glass-ceramic samples. The cooling figure-of-merit was measured by optical calorimetry using a fiber Bragg grating and found to depend on the level of crystallization of the sample, and that samples with nanocrystallites result in higher quantum efficiency and lower background absorption than the pure-glass sample. In addition to laser-induced cooling, the glass-ceramics have the potential to serve as a reference for quantum efficiency measurements. PMID:25836500

  8. Ytterbium optical lattice clock with 10-18 level characterization

    NASA Astrophysics Data System (ADS)

    Phillips, Nathaniel; Sherman, Jeff; Beloy, Kyle; Hinkley, Nathan; Schioppo, Marco; Oates, Chris; Ludlow, Andrew

    2014-05-01

    A recent comparison of two ytterbium-based optical lattice clocks at NIST demonstrated record stability of 1 . 6 parts in 1018 after 25,000s averaging. We report on measurements of the two primary systematic effects that shift the ultra-narrow clock transition, towards a reduction of the clock uncertainty to the 10-18 level. Uncertainty stemming from the blackbody radiation (BBR) shift is largely due to imprecise knowledge of the thermal environment surrounding the atoms. We detail the construction and operation of an in-vacuum, thermally-regulated radiation shield, which permits laser cooling and trapping while enabling an absolute temperature measurement with < 20 mK precision. Additionally, while operation of the optical lattice at the magic wavelength (?m) cancels the scalar Stark shift (since both clock states shift equally), higher-order vector and two-photon hyperpolarizability shifts remain. To evaluate these effects, as well as the polarizability away from ?m, we implement a lattice buildup cavity around the atoms. The resulting twenty-fold enhancement of the lattice intensity provides a significant lever arm for precise measurement of these effects.

  9. Ytterbium-doped fibers fabricated with atomic layer deposition method.

    PubMed

    Montiel i Ponsoda, Joan J; Norin, Lars; Ye, Changgeng; Bosund, Markus; Söderlund, Mikko J; Tervonen, Ari; Honkanen, Seppo

    2012-10-22

    We report on a new fabrication method of producing ytterbium doped fibers by atomic layer deposition (ALD) in combination with the conventional modified chemical vapor deposition (MCVD) technique. An MCVD soot-preform with a porous layer of SiO(2) is coated with layers of Yb(2)O(3) and Al(2)O(3) prior to sintering, using the gas-phase ALD method. An SEM/EDS material analysis study shows that the dopants successfully penetrate the full thickness of 320 µm of the soot layer. An Yb-doped fiber fabricated by this technique shows a background attenuation of 20 dB/km, a uniform longitudinal Yb-doping profile, and good laser characteristics with a slope efficiency of 80%. Furthermore, we present a comparison in terms of photodarkening between the MCVD-ALD fiber and a solution doped fiber, fabricated with the same MCVD recipe. The new MCVD-ALD fiber appears to be more photodarkening resistant. PMID:23187275

  10. 46 CFR 175.115 - Applicability to offshore supply vessels.

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ... 2011-10-01 2011-10-01 false Applicability to offshore supply vessels. 175.115 Section 175.115 Shipping...TONS) GENERAL PROVISIONS § 175.115 Applicability to offshore supply vessels. (a) Existing OSVs of more than...

  11. 46 CFR 175.115 - Applicability to offshore supply vessels.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... 2010-10-01 2010-10-01 false Applicability to offshore supply vessels. 175.115 Section 175.115 Shipping...TONS) GENERAL PROVISIONS § 175.115 Applicability to offshore supply vessels. (a) Existing OSVs of more than...

  12. 7 CFR 1726.175 - General plant materials.

    Code of Federal Regulations, 2011 CFR

    2011-01-01

    ...2011-01-01 2011-01-01 false General plant materials. 1726.175 Section 1726.175 ...SYSTEM CONSTRUCTION POLICIES AND PROCEDURES General Plant § 1726.175 General plant materials. This section covers items...

  13. 7 CFR 1726.175 - General plant materials.

    Code of Federal Regulations, 2012 CFR

    2012-01-01

    ...2012-01-01 2012-01-01 false General plant materials. 1726.175 Section 1726.175 ...SYSTEM CONSTRUCTION POLICIES AND PROCEDURES General Plant § 1726.175 General plant materials. This section covers items...

  14. 7 CFR 1726.175 - General plant materials.

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ...2010-01-01 2010-01-01 false General plant materials. 1726.175 Section 1726.175 ...SYSTEM CONSTRUCTION POLICIES AND PROCEDURES General Plant § 1726.175 General plant materials. This section covers items...

  15. 25 CFR 175.10 - Revenues collected from power operations.

    Code of Federal Regulations, 2012 CFR

    2012-04-01

    ...2011-04-01 true Revenues collected from power operations. 175.10 Section 175.10 ...THE INTERIOR LAND AND WATER INDIAN ELECTRIC POWER UTILITIES Service Fees, Electric Power Rates and Revenues § 175.10 Revenues...

  16. 25 CFR 175.10 - Revenues collected from power operations.

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ...2011-04-01 false Revenues collected from power operations. 175.10 Section 175.10 ...THE INTERIOR LAND AND WATER INDIAN ELECTRIC POWER UTILITIES Service Fees, Electric Power Rates and Revenues § 175.10 Revenues...

  17. 25 CFR 175.10 - Revenues collected from power operations.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ...2010-04-01 false Revenues collected from power operations. 175.10 Section 175.10 ...THE INTERIOR LAND AND WATER INDIAN ELECTRIC POWER UTILITIES Service Fees, Electric Power Rates and Revenues § 175.10 Revenues...

  18. 25 CFR 175.10 - Revenues collected from power operations.

    Code of Federal Regulations, 2014 CFR

    2014-04-01

    ...2014-04-01 false Revenues collected from power operations. 175.10 Section 175.10 ...THE INTERIOR LAND AND WATER INDIAN ELECTRIC POWER UTILITIES Service Fees, Electric Power Rates and Revenues § 175.10 Revenues...

  19. 25 CFR 175.10 - Revenues collected from power operations.

    Code of Federal Regulations, 2013 CFR

    2013-04-01

    ...2013-04-01 false Revenues collected from power operations. 175.10 Section 175.10 ...THE INTERIOR LAND AND WATER INDIAN ELECTRIC POWER UTILITIES Service Fees, Electric Power Rates and Revenues § 175.10 Revenues...

  20. Investigation on chaotic dynamics of ytterbium-doped fiber laser with Mach-Zehnder interferometer

    NASA Astrophysics Data System (ADS)

    Zhang, Li; Yang, Lingzhen; Wang, Feifei; Cui, Liqin; Qin, Jianmin

    2016-01-01

    Chaotic dynamics are observed experimentally from an ytterbium-doped fiber laser when the polarization controller is adjusted to an appropriate position and the pump power is increased. But chaotic signals hide the cavity-length signature of ytterbium-doped fiber laser and the cavity-length can be identified by the sidelobes of chaotic autocorrelation. The perturbation of variable optical attenuator inserted to the ytterbium-doped fiber laser and the interference effect induced by the optical path difference (OPD) of a fiber optical Mach-Zehnder interferometer (MZI) are adopted to investigate the chaotic dynamics. The results show that such sidelobes can be completely suppressed by exerting the perturbation and by the interference effect of MZI with optimum OPD which is demonstrated theoretically and experimentally. Moreover, the optimum OPD corresponding to the delay-time of MZI is intimately related to the relaxation oscillation period.

  1. Preparation of ytterbium-doped silica optical fiber using MCVD process with chelate precursor

    NASA Astrophysics Data System (ADS)

    Cao, Beibei; Yu, Haihu; Hu, Peng; Chen, Su; Sun, Cheng; Yang, Yucheng

    2015-07-01

    Ytterbium-doped silica optical fibers were fabricated using a modified chemical vapor deposition process with chelate precursor. The typical core diameters of the preforms made by the chelate doping method are 5.79mm, and the useful length of the preforms is about 900mm, twice the length of the preforms by the solution doping method. The Ytterbium-doped fiber with octagonal inner cladding shape drawn in a double clad configuration has a background loss of 15dB/km at 1200nm. The Ytterbium ion concentration in the fiber core is up to 0.709wt% and a slope efficiency of 81.9% can be generated when pumped with 915nm laser.

  2. Mechanism of formation of ytterbium disilicide nanofilms on the Si(111) surface

    NASA Astrophysics Data System (ADS)

    Kuz'min, M. V.; Mittsev, M. A.; Mukhuchev, A. M.

    2015-10-01

    Thin-film Yb-Si(111) structures have been studied experimentally for different film thicknesses and at substrate temperatures of 300-1500 K. The temperatures at which the formation of ytterbium disilicide begins and ends, the thermal stability, and the work function have been determined. It has been shown that yttrium disilicide is formed at relatively low temperatures. The mechanism explaining this fact has been proposed. This mechanism also explains why and in which manner ytterbium transforms silicon into silicide despite the fact that the bond between atoms in the silicon crystal is stronger than that in silicide.

  3. 40 CFR 61.175 - Monitoring requirements.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ...PROGRAMS (CONTINUED) NATIONAL EMISSION STANDARDS FOR HAZARDOUS AIR POLLUTANTS National Emission Standard for Inorganic Arsenic Emissions From Primary Copper Smelters § 61.175 Monitoring requirements. (a) Each owner or operator of a...

  4. 40 CFR 61.175 - Monitoring requirements.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ...PROGRAMS (CONTINUED) NATIONAL EMISSION STANDARDS FOR HAZARDOUS AIR POLLUTANTS National Emission Standard for Inorganic Arsenic Emissions From Primary Copper Smelters § 61.175 Monitoring requirements. (a) Each owner or operator of a...

  5. 40 CFR 61.175 - Monitoring requirements.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ...PROGRAMS (CONTINUED) NATIONAL EMISSION STANDARDS FOR HAZARDOUS AIR POLLUTANTS National Emission Standard for Inorganic Arsenic Emissions From Primary Copper Smelters § 61.175 Monitoring requirements. (a) Each owner or operator of a...

  6. 21 CFR 175.105 - Adhesives.

    Code of Federal Regulations, 2013 CFR

    2013-04-01

    ... § 175.105, see the List of CFR Sections Affected, which appears in the Finding Aids section of the... Acetyl triethyl citrate 2-Acrylamido-2-methyl-propanesulfonic acid, homopolymer, sodium salt (CAS Reg....

  7. 21 CFR 175.105 - Adhesives.

    Code of Federal Regulations, 2012 CFR

    2012-04-01

    ... § 175.105, see the List of CFR Sections Affected, which appears in the Finding Aids section of the... Acetyl triethyl citrate 2-Acrylamido-2-methyl-propanesulfonic acid, homopolymer, sodium salt (CAS Reg....

  8. 21 CFR 175.105 - Adhesives.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ... § 175.105, see the List of CFR Sections Affected, which appears in the Finding Aids section of the... Acetyl triethyl citrate 2-Acrylamido-2-methyl-propanesulfonic acid, homopolymer, sodium salt (CAS Reg....

  9. 21 CFR 175.105 - Adhesives.

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ... § 175.105, see the List of CFR Sections Affected, which appears in the Finding Aids section of the... Acetyl triethyl citrate 2-Acrylamido-2-methyl-propanesulfonic acid, homopolymer, sodium salt (CAS Reg....

  10. 21 CFR 175.105 - Adhesives.

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ... § 175.105, see the List of CFR Sections Affected, which appears in the Finding Aids section of the...-(Hydroxymethyl)-2-methyl-1,3-propanediol tribenzoate 2-Imidazolidinone 3-Iodo-2-propynyl-N-butyl carbamate...

  11. 21 CFR 175.105 - Adhesives.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ... § 175.105, see the List of CFR Sections Affected, which appears in the Finding Aids section of the...-(Hydroxymethyl)-2-methyl-1,3-propanediol tribenzoate 2-Imidazolidinone 3-Iodo-2-propynyl-N-butyl carbamate...

  12. 7 CFR 65.175 - Ground pork.

    Code of Federal Regulations, 2013 CFR

    2013-01-01

    ...LABELING OF BEEF, PORK, LAMB, CHICKEN, GOAT MEAT, PERISHABLE AGRICULTURAL COMMODITIES, MACADAMIA NUTS, PECANS, PEANUTS, AND GINSENG General Provisions Definitions § 65.175 Ground pork. Ground pork means comminuted pork of skeletal origin...

  13. 7 CFR 65.175 - Ground pork.

    Code of Federal Regulations, 2012 CFR

    2012-01-01

    ...LABELING OF BEEF, PORK, LAMB, CHICKEN, GOAT MEAT, PERISHABLE AGRICULTURAL COMMODITIES, MACADAMIA NUTS, PECANS, PEANUTS, AND GINSENG General Provisions Definitions § 65.175 Ground pork. Ground pork means comminuted pork of skeletal origin...

  14. 7 CFR 65.175 - Ground pork.

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ...LABELING OF BEEF, PORK, LAMB, CHICKEN, GOAT MEAT, PERISHABLE AGRICULTURAL COMMODITIES, MACADAMIA NUTS, PECANS, PEANUTS, AND GINSENG General Provisions Definitions § 65.175 Ground pork. Ground pork means comminuted pork of skeletal origin...

  15. 7 CFR 65.175 - Ground pork.

    Code of Federal Regulations, 2011 CFR

    2011-01-01

    ...LABELING OF BEEF, PORK, LAMB, CHICKEN, GOAT MEAT, PERISHABLE AGRICULTURAL COMMODITIES, MACADAMIA NUTS, PECANS, PEANUTS, AND GINSENG General Provisions Definitions § 65.175 Ground pork. Ground pork means comminuted pork of skeletal origin...

  16. 7 CFR 65.175 - Ground pork.

    Code of Federal Regulations, 2014 CFR

    2014-01-01

    ...LABELING OF BEEF, PORK, LAMB, CHICKEN, GOAT MEAT, PERISHABLE AGRICULTURAL COMMODITIES, MACADAMIA NUTS, PECANS, PEANUTS, AND GINSENG General Provisions Definitions § 65.175 Ground pork. Ground pork means comminuted pork of skeletal origin...

  17. SOLITONS AND OPTICAL FIBERS: Self-Q-switched ytterbium-doped cladding-pumped fibre laser

    NASA Astrophysics Data System (ADS)

    Grukh, Dmitrii A.; Kurkov, Andrei S.; Razdobreev, I. M.; Fotiadi, A. A.

    2002-11-01

    A self-Q-switched ytterbium-doped double-clad fibre laser is described. A samarium-doped fibre is used as a filter for protecting a pump source. A fibre coupler is employed to obtain a nonlinear feedback. The mechanism of pulse formation in the laser is considered, and the dependence of its output pulse on the coupler parameters is studied.

  18. Novel highly emissive tetracyanotetraphenylporphyrazine ytterbium complex for optoelectronic and biophotonic applications

    NASA Astrophysics Data System (ADS)

    Klapshina, Larisa G.; Douglas, William E.; Grigoryev, Ilya S.; Shirmanova, Marina V.; Gerbier, Philippe; Bushuk, Boris A.

    2010-02-01

    The preparation is described of a novel highly emissive ytterbium complex with a proposed unusual structure obtained by reaction of tricyanovinylbenzene (TCNVB) with bis(indenyl)ytterbium(II) in THF. The reaction occurs under extremely mild conditions, the tetraphenyltetracyanoporphyrazine macrocycle being assembled in high yield from TCNVB building-blocks by Yb3+-template synthesis. The analytical, spectral and electrochemical investigations of the obtained ytterbium complex indicate its existence in the form of a binuclear adduct with Yb(TCNVB)3 species in which a one doubly reduced TCNVB molecule bridges two Yb3+ cations. The formation of a disordered polynuclear coordination polymer network including a macrocyclic structure and metal cations bridged through the nitrile nitrogen atoms is proposed. The complex is readily soluble and is compatible with a variety of polymeric matrices giving doped polymeric glasses and films which are highly luminescent in the biologically relevant optical window covering the visible and near infrared range (640-1000 nm). In addition, doped polymeric glasses and films highly emissive at the telecommunication wavelength (1540 nm) including the novel ytterbium complex and originally not luminescent erbium chelate in an equimolar ratio have been obtained. The compound is found to be an extraordinarily strong sensitizer of near-IR Er3+ emission. Use of the Yb complex as a fluorescent marker for biomedical in vitro investigations has been demonstrated.

  19. Direct demonstration of sensitization at 980nm optical excitation in erbium-ytterbium silicates

    E-print Network

    Vanhoutte, Michiel

    Sensitization of erbium by ytterbium in Er[subscript x]Yb[subscript 2-x]SiO[subscript 5] thin films at 980nm optical excitation is demonstrated by means of comparison of the 1.54?m photoluminescence intensities excited ...

  20. Mechanisms of Ytterbium Monosilicate/Mullite/Silicon Coating Failure During Thermal Cycling in Water Vapor

    E-print Network

    Wadley, Haydn

    Mechanisms of Ytterbium Monosilicate/Mullite/Silicon Coating Failure During Thermal Cycling in Water Vapor Bradley T. Richards,, Matthew R. Begley,§ and Haydn N.G. Wadley Department of Materials thermal cycling between 1316°C and 110°C in a 90% H2O/10% O2 environment flowing at 4.4 cm/s, it was found

  1. Second harmonic generation of spectrally broadened femtosecond ytterbium laser radiation in a gas-filled capillary

    SciTech Connect

    Didenko, N V; Konyashchenko, Aleksandr V; Kostryukov, P V; Losev, Leonid L; Tenyakov, S Yu

    2011-09-30

    A 300-fs radiation pulse of an ytterbium laser with a wavelength of 1030 nm and energy of 150 {mu}J were converted to a 15-fs pulse with a wavelength of 515 nm by broadening the emission spectrum in a capillary filled with xenon and by generating the second harmonic in a KDP crystal. The energy efficiency of the conversion was 30 %.

  2. Two-color magneto-optical trap with small magnetic field for ytterbium

    E-print Network

    Kawasaki, Akio

    We report a two-color magneto-optical trap (MOT) for ytterbium atoms where the slowing and trapping functions are separately performed by the singlet transition light (6s[superscript 2] [superscript 1]S[subscript 0] ? 6s6p ...

  3. Structure, Composition and Defect Control during Plasma Spray Deposition of Ytterbium Silicate Coatings

    E-print Network

    Wadley, Haydn

    and a low steam volatility ytterbium silicate topcoat has shown some promise for use at temperatures up to 1316o C. However, the performance of the coating system appeared to be dependent upon the manner of its As thermal protection concepts for superalloy components used in the most advanced gas turbine engines reach

  4. SN54174, SN54175, SN54LS174, SN54LS175, SN54S174, SN54S175, SN74174, SN74175, SN74LS174, SN74LS175, SN74S174, SN74S175

    E-print Network

    Sasaki, Galen H.

    SN54174, SN54175, SN54LS174, SN54LS175, SN54S174, SN54S175, SN74174, SN74175, SN74LS174, SN74LS175 parameters. #12;SN54174, SN54175, SN54LS174, SN54LS175, SN54S174, SN54S175, SN74174, SN74175, SN74LS174, SN74LS175, SN74S174, SN74S175 HEX/QUADRUPLE D-TYPE FLIP-FLOPS WITH CLEAR SDLS068A ­ DECEMBER 1972

  5. Preparation of a Ytterbium-tagged Gunshot Residue Standard for Quality Control in the Forensic Analysis of GSR.

    PubMed

    Hearns, Nigel G R; Laflèche, Denis N; Sandercock, Mark L

    2015-05-01

    Preparation of a ytterbium-tagged gunshot residue (GSR) reference standard for scanning electron microscopy and energy dispersive X-ray spectroscopic (SEM-EDS) microanalysis is reported. Two different chemical markers, ytterbium and neodymium, were evaluated by spiking the primers of 38 Special ammunition cartridges (no propellant, no projectile) and discharging them onto 12.7 mm diameter aluminum SEM pin stubs. Following SEM-EDS microanalysis, the majority of tri-component particles containing lead, barium, and antimony (PbBaSb) were successfully tagged with the chemical marker. Results demonstrate a primer spiked with 0.75% weight percent of ytterbium nitrate affords PbBaSb particles characteristic of GSR with a ytterbium inclusion efficiency of between 77% and 100%. Reproducibility of the method was verified, and durability of the ytterbium-tagged tri-component particles under repeated SEM-EDS analysis was also tested. The ytterbium-tagged PbBaSb particles impart synthetic traceability to a GSR reference standard and are suitable for analysis alongside case work samples, as a positive control for quality assurance purposes. PMID:25678346

  6. 21 CFR 175.105 - Adhesives.

    Code of Federal Regulations, 2014 CFR

    2014-04-01

    ... § 175.105, see the List of CFR Sections Affected, which appears in the Finding Aids section of the... Diethylene glycol laurate Diethylene glycol monobutyl ether Diethylene glycol monobutyl ether acetate Diethylene glycol monoethyl ether Diethylene glycol monoethyl ether acetate Diethylene glycol...

  7. 2 CFR 175.15 - Award term.

    Code of Federal Regulations, 2013 CFR

    2013-01-01

    ... conduct of an individual to an organization that are provided in 2 CFR part 180, “OMB Guidelines to... imputing the conduct of an individual to an organization that are provided in 2 CFR part 180, “OMB... tribe, or foreign public entity, as those terms are defined in 2 CFR 175.25. ii. Includes: A....

  8. 2 CFR 175.15 - Award term.

    Code of Federal Regulations, 2012 CFR

    2012-01-01

    ... conduct of an individual to an organization that are provided in 2 CFR part 180, “OMB Guidelines to... imputing the conduct of an individual to an organization that are provided in 2 CFR part 180, “OMB... tribe, or foreign public entity, as those terms are defined in 2 CFR 175.25. ii. Includes: A....

  9. 2 CFR 175.15 - Award term.

    Code of Federal Regulations, 2011 CFR

    2011-01-01

    ... to an organization that are provided in 2 CFR part 180, “OMB Guidelines to Agencies on Governmentwide... of an individual to an organization that are provided in 2 CFR part 180, “OMB Guidelines to Agencies... entity, as those terms are defined in 2 CFR 175.25. ii. Includes: A. A nonprofit organization,...

  10. 2 CFR 175.15 - Award term.

    Code of Federal Regulations, 2014 CFR

    2014-01-01

    ... to an organization that are provided in 2 CFR part 180, “OMB Guidelines to Agencies on Governmentwide... of an individual to an organization that are provided in 2 CFR part 180, “OMB Guidelines to Agencies... entity, as those terms are defined in 2 CFR 175.25. ii. Includes: A. A nonprofit organization,...

  11. 2 CFR 175.15 - Award term.

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ... 2 CFR part 180, “OMB Guidelines to Agencies on Governmentwide Debarment and Suspension... that are provided in 2 CFR part 180, “OMB Guidelines to Agencies on Governmentwide Debarment and... defined in 2 CFR 175.25. ii. Includes: A. A nonprofit organization, including any nonprofit institution...

  12. 36 CFR 17.5 - Bids.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... LEASEHOLD INTERESTS ON LANDS OF THE NATIONAL PARK SYSTEM § 17.5 Bids. Bids may be made by the principal or... unsuccessful bidders. A separate nonrefundable payment of $100 to cover costs of publication and of processing... envelope upon which the prospective bidder shall write: (a) Bid on interest in land of the National...

  13. 49 CFR 175.90 - Damaged shipments.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... unit load device was stowed must be inspected for evidence of leakage or contamination immediately upon... for contamination and decontaminated, if applicable. (b) Except as provided in § 175.700, the operator... that a hazardous material may be the cause of the contamination, the operator must take...

  14. 46 CFR 175.540 - Equivalents.

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ... IMO Resolution A. 520(13) (incorporated by reference, see 46 CFR 175.600); or (2) Has successfully... Safety Management (ISM) Code (IMO Resolution A.741(18)) for the purpose of determining that an equivalent... Organization (IMO) “Code of Safety for High Speed Craft” as an equivalent to compliance with...

  15. 46 CFR 175.540 - Equivalents.

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ... IMO Resolution A. 520(13) (incorporated by reference, see 46 CFR 175.600); or (2) Has successfully... Safety Management (ISM) Code (IMO Resolution A.741(18)) for the purpose of determining that an equivalent... Organization (IMO) “Code of Safety for High Speed Craft” as an equivalent to compliance with...

  16. 46 CFR 175.540 - Equivalents.

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ... IMO Resolution A. 520(13) (incorporated by reference, see 46 CFR 175.600); or (2) Has successfully... Safety Management (ISM) Code (IMO Resolution A.741(18)) for the purpose of determining that an equivalent... Organization (IMO) “Code of Safety for High Speed Craft” as an equivalent to compliance with...

  17. 46 CFR 175.540 - Equivalents.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... IMO Resolution A. 520(13) (incorporated by reference, see 46 CFR 175.600); or (2) Has successfully... Safety Management (ISM) Code (IMO Resolution A.741(18)) for the purpose of determining that an equivalent... Organization (IMO) “Code of Safety for High Speed Craft” as an equivalent to compliance with...

  18. 46 CFR 175.540 - Equivalents.

    Code of Federal Regulations, 2012 CFR

    2012-10-01

    ... IMO Resolution A. 520(13) (incorporated by reference, see 46 CFR 175.600); or (2) Has successfully... Safety Management (ISM) Code (IMO Resolution A.741(18)) for the purpose of determining that an equivalent... Organization (IMO) “Code of Safety for High Speed Craft” as an equivalent to compliance with...

  19. Marine Biology 111, 175-181 (1991)

    E-print Network

    1991-01-01

    Marine Biology 111, 175-181 (1991) Marine ::~~ Biology© Springer-Verlag 1991 Uptake of dissolved organics by marine bacteria as a function of fluid motion B. E. Logan 1 and D. L. Kirchman 2 1, USA 2 College of Marine Studies, University of Delaware, Lewes, Deleware 19958, USA Date of final

  20. 25 CFR 175.6 - Information collection.

    Code of Federal Regulations, 2014 CFR

    2014-04-01

    ... BUREAU OF INDIAN AFFAIRS, DEPARTMENT OF THE INTERIOR LAND AND WATER INDIAN ELECTRIC POWER UTILITIES General Provisions § 175.6 Information collection. The information collection requirements contained in... assigned clearance number 1076-0021. This information is being collected to provide electric power...

  1. Stress Measurements in Shock-Loaded PBX 9501 with Embedded Longitudinal and Lateral Piezoresistive Ytterbium Gauges

    SciTech Connect

    D.E. Hooks

    2004-12-15

    A series of light gas gun impact experiments were performed with piezoresistive ytterbium (Yb) gauges in longitudinal and lateral orientations embedded in the plastic bonded explosive PBX 9501. These experiments were performed to evaluate the feasibility of using this method to measure lateral stresses and shear strength dynamically in PBX 9501. Ytterbium was chosen as a gauge material based on its high piezoresistance changes at low stress levels. Experiments were performed at longitudinal impact stresses of approximately 0.6 GPa, which is above the yield point of Yb, near the dynamic yield point of PBX 9501, at a level that is comparable with other impact data, and relevant to several multidimensional safety tests. Results show that PBX 9501 does maintain strength throughout compression. Because of poor reproducibility observed in the experiments presented, it appears unlikely that stress extraction from these gauge results would yield an estimate of shear strength at this impact stress with acceptable error.

  2. Role of oxygen hole centres in the photodarkening of ytterbium-doped phosphosilicate fibre

    SciTech Connect

    Rybaltovsky, A A; Bobkov, K K; Likhachev, M E; Bubnov, M M; Dianov, E M; Umnikov, A A; Lipatov, D S; Gur'yanov, A N; Romanov, A N; Sulimov, V B

    2013-11-30

    We have studied the photodarkening in active fibres with an ytterbium-doped phosphosilicate glass core under IR irradiation with a pump source (920 nm) and UV irradiation (193 nm). Analysis of absorption and luminescence spectra suggests that such irradiations produce phosphorus – oxygen – hole centres (P-OHCs) in the core glass network and lead to the reduction of the ytterbium ions to a divalent state (Yb{sup 2+}). The photoinduced optical loss in the fibres in the visible range (400 – 700 nm) is mainly due to absorption by the P-OHCs. A quantum-mechanical model is proposed for P-OHC and Yb{sup 2+} formation. (nonlinear optical phenomena)

  3. Efficient compression of the femtosecond pulses of an ytterbium laser in a gas-filled capillary

    SciTech Connect

    Konyashchenko, Aleksandr V; Losev, Leonid L; Tenyakov, S Yu

    2011-07-31

    A 290-fs radiation pulse of an ytterbium laser system with a central wavelength of 1028 nm and an energy of 145 {mu}J was compressed to a 27-fs pulse with an energy of 75 {mu}J. The compression was realised on the basis of the effect of pulse spectrum broadening in a xenon-filled glass capillary for a pulse repetition rate of 3kHz. (control of laser radiation parameters)

  4. Linearly polarized ytterbium-doped fiber laser in a pedestal design with aluminosilicate inner cladding

    NASA Astrophysics Data System (ADS)

    Yoo, S.; Webb, A. S.; Boyland, A. J.; Standish, R. J.; Dhar, A.; Sahu, J. K.

    2011-06-01

    Ytterbium-doped polarization-maintaining fiber in a pedestal geometry is demonstrated using MCVD and a novel in-situ doping technique. The aluminosilicate pedestal layers minimize the thermal expansion mismatch against the silica outer cladding and permits complete freedom of location for the stress-applying parts in the fiber. A birefringence of 2.4×10-4 is experimentally determined. The fiber delivers linearly polarized laser exhibiting 79% slope efficiency with a polarization extinction ratio of 12 dB.

  5. 42 CFR 411.175 - Basis for Medicare primary payments.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... 2010-10-01 false Basis for Medicare primary payments. 411.175 Section...175 Public Health CENTERS FOR MEDICARE & MEDICAID SERVICES, DEPARTMENT OF HEALTH AND HUMAN SERVICES MEDICARE PROGRAM EXCLUSIONS FROM...

  6. 27 CFR 53.175 - Readjustment for local advertising charges.

    Code of Federal Regulations, 2014 CFR

    2014-04-01

    ...2014-04-01 false Readjustment for local advertising charges. 53.175 Section 53... § 53.175 Readjustment for local advertising charges. (a) In general...reimbursement of expenses for local advertising of the article or any other...

  7. 27 CFR 53.175 - Readjustment for local advertising charges.

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ...2011-04-01 false Readjustment for local advertising charges. 53.175 Section 53... § 53.175 Readjustment for local advertising charges. (a) In general...reimbursement of expenses for local advertising of the article or any other...

  8. 27 CFR 53.175 - Readjustment for local advertising charges.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ...2010-04-01 false Readjustment for local advertising charges. 53.175 Section 53... § 53.175 Readjustment for local advertising charges. (a) In general...reimbursement of expenses for local advertising of the article or any other...

  9. 27 CFR 53.175 - Readjustment for local advertising charges.

    Code of Federal Regulations, 2013 CFR

    2013-04-01

    ...2013-04-01 false Readjustment for local advertising charges. 53.175 Section 53... § 53.175 Readjustment for local advertising charges. (a) In general...reimbursement of expenses for local advertising of the article or any other...

  10. 27 CFR 53.175 - Readjustment for local advertising charges.

    Code of Federal Regulations, 2012 CFR

    2012-04-01

    ...2011-04-01 true Readjustment for local advertising charges. 53.175 Section 53... § 53.175 Readjustment for local advertising charges. (a) In general...reimbursement of expenses for local advertising of the article or any other...

  11. 14 CFR 135.175 - Airborne weather radar equipment requirements.

    Code of Federal Regulations, 2013 CFR

    2013-01-01

    ...2013-01-01 false Airborne weather radar equipment requirements. 135.175 ...Equipment § 135.175 Airborne weather radar equipment requirements. (a) No...operations unless approved airborne weather radar equipment is installed in the...

  12. 14 CFR 135.175 - Airborne weather radar equipment requirements.

    Code of Federal Regulations, 2012 CFR

    2012-01-01

    ...2012-01-01 false Airborne weather radar equipment requirements. 135.175 ...Equipment § 135.175 Airborne weather radar equipment requirements. (a) No...operations unless approved airborne weather radar equipment is installed in the...

  13. 14 CFR 135.175 - Airborne weather radar equipment requirements.

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ...2010-01-01 false Airborne weather radar equipment requirements. 135.175 ...Equipment § 135.175 Airborne weather radar equipment requirements. (a) No...operations unless approved airborne weather radar equipment is installed in the...

  14. 14 CFR 135.175 - Airborne weather radar equipment requirements.

    Code of Federal Regulations, 2014 CFR

    2014-01-01

    ...2014-01-01 false Airborne weather radar equipment requirements. 135.175 ...Equipment § 135.175 Airborne weather radar equipment requirements. (a) No...operations unless approved airborne weather radar equipment is installed in the...

  15. 14 CFR 135.175 - Airborne weather radar equipment requirements.

    Code of Federal Regulations, 2011 CFR

    2011-01-01

    ...2011-01-01 false Airborne weather radar equipment requirements. 135.175 ...Equipment § 135.175 Airborne weather radar equipment requirements. (a) No...operations unless approved airborne weather radar equipment is installed in the...

  16. 18 CFR 367.1750 - Account 175, Derivative instrument assets.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ...2010-04-01 false Account 175, Derivative instrument assets. 367.1750...Assets § 367.1750 Account 175, Derivative instrument assets. This account must include the amounts paid for derivative instruments, and the change...

  17. 18 CFR 367.1750 - Account 175, Derivative instrument assets.

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ...2011-04-01 false Account 175, Derivative instrument assets. 367.1750...Assets § 367.1750 Account 175, Derivative instrument assets. This account must include the amounts paid for derivative instruments, and the change...

  18. Henry's Law vaporization studies and thermodynamics of einsteinium-253 metal dissolved in ytterbium

    SciTech Connect

    Kleinschmidt, P.D.; Ward, J.W.; Matlack, G.M.; Haire, R.G.

    1984-07-01

    The cohesive energy of metallic einsteinium determines whether einsteinium is a trivalent or divalent metal. The enthalpy of sublimation, a measure of the cohesive energy, is calculated from the partial pressures of einsteinium over an alloy. The partial pressure of /sup 253/Es has been measured over the range 470--870 K, using combined target and mass spectrometric Knudsen effusion techniques. An alloy was prepared with einsteinium dissolved in a ytterbium solvent to produce a very dilute solution. Partial pressure measurements on the alloy were amenable to the experimental technique and a data analysis using a Henry's law treatment of the data. Vapor pressure data are combined with an estimated crystal entropy S/sup 0//sub 298/ and ..delta..C/sup 0//sub p/ for ytterbium, to produce enthalpy, entropy, and free energy functions from 298 to 1300 K. The vapor pressure of einsteinium in a dilute einsteinium--ytterbium alloy is described by the equation log P(atm) = -(6815 +- 216)/T+2.576 +- 0.337, from which we calculate for the enthalpy of sublimation of pure einsteinium ..delta..H/sup 0//sub 298/ (second law) = 31.76 kcal/mol. The value of the enthalpy of sublimation is consistent with the conclusion that Es is a divalent metal.

  19. 7 CFR 1726.175 - General plant materials.

    Code of Federal Regulations, 2012 CFR

    2012-01-01

    ... 7 Agriculture 11 2012-01-01 2012-01-01 false General plant materials. 1726.175 Section 1726.175... AGRICULTURE ELECTRIC SYSTEM CONSTRUCTION POLICIES AND PROCEDURES General Plant § 1726.175 General plant... determine the procurement method that best meets its needs for purchase of general plant material...

  20. 7 CFR 1726.175 - General plant materials.

    Code of Federal Regulations, 2013 CFR

    2013-01-01

    ... 7 Agriculture 11 2013-01-01 2013-01-01 false General plant materials. 1726.175 Section 1726.175... AGRICULTURE ELECTRIC SYSTEM CONSTRUCTION POLICIES AND PROCEDURES General Plant § 1726.175 General plant... determine the procurement method that best meets its needs for purchase of general plant material...

  1. 21 CFR 133.175 - Pasteurized cheese spread.

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ... 21 Food and Drugs 2 2011-04-01 2011-04-01 false Pasteurized cheese spread. 133.175 Section 133.175... FOR HUMAN CONSUMPTION CHEESES AND RELATED CHEESE PRODUCTS Requirements for Specific Standardized Cheese and Related Products § 133.175 Pasteurized cheese spread. Pasteurized cheese spread is the...

  2. 21 CFR 133.175 - Pasteurized cheese spread.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ... 21 Food and Drugs 2 2010-04-01 2010-04-01 false Pasteurized cheese spread. 133.175 Section 133.175... FOR HUMAN CONSUMPTION CHEESES AND RELATED CHEESE PRODUCTS Requirements for Specific Standardized Cheese and Related Products § 133.175 Pasteurized cheese spread. Pasteurized cheese spread is the...

  3. 21 CFR 133.175 - Pasteurized cheese spread.

    Code of Federal Regulations, 2013 CFR

    2013-04-01

    ... 21 Food and Drugs 2 2013-04-01 2013-04-01 false Pasteurized cheese spread. 133.175 Section 133.175... FOR HUMAN CONSUMPTION CHEESES AND RELATED CHEESE PRODUCTS Requirements for Specific Standardized Cheese and Related Products § 133.175 Pasteurized cheese spread. Pasteurized cheese spread is the...

  4. 21 CFR 133.175 - Pasteurized cheese spread.

    Code of Federal Regulations, 2014 CFR

    2014-04-01

    ... 21 Food and Drugs 2 2014-04-01 2014-04-01 false Pasteurized cheese spread. 133.175 Section 133.175... FOR HUMAN CONSUMPTION CHEESES AND RELATED CHEESE PRODUCTS Requirements for Specific Standardized Cheese and Related Products § 133.175 Pasteurized cheese spread. Pasteurized cheese spread is the...

  5. 21 CFR 133.175 - Pasteurized cheese spread.

    Code of Federal Regulations, 2012 CFR

    2012-04-01

    ... 21 Food and Drugs 2 2012-04-01 2012-04-01 false Pasteurized cheese spread. 133.175 Section 133.175... FOR HUMAN CONSUMPTION CHEESES AND RELATED CHEESE PRODUCTS Requirements for Specific Standardized Cheese and Related Products § 133.175 Pasteurized cheese spread. Pasteurized cheese spread is the...

  6. 21 CFR 175.125 - Pressure-sensitive adhesives.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ... 21 Food and Drugs 3 2010-04-01 2009-04-01 true Pressure-sensitive adhesives. 175.125 Section 175...) FOOD FOR HUMAN CONSUMPTION (CONTINUED) INDIRECT FOOD ADDITIVES: ADHESIVES AND COMPONENTS OF COATINGS Substances for Use Only as Components of Adhesives § 175.125 Pressure-sensitive adhesives....

  7. 21 CFR 175.125 - Pressure-sensitive adhesives.

    Code of Federal Regulations, 2012 CFR

    2012-04-01

    ... 21 Food and Drugs 3 2012-04-01 2012-04-01 false Pressure-sensitive adhesives. 175.125 Section 175...) FOOD FOR HUMAN CONSUMPTION (CONTINUED) INDIRECT FOOD ADDITIVES: ADHESIVES AND COMPONENTS OF COATINGS Substances for Use Only as Components of Adhesives § 175.125 Pressure-sensitive adhesives....

  8. 13 CFR 120.175 - Coastal barrier islands.

    Code of Federal Regulations, 2012 CFR

    2012-01-01

    ... 13 Business Credit and Assistance 1 2012-01-01 2012-01-01 false Coastal barrier islands. 120.175 Section 120.175 Business Credit and Assistance SMALL BUSINESS ADMINISTRATION BUSINESS LOANS Policies Applying to All Business Loans Requirements Imposed Under Other Laws and Orders § 120.175 Coastal barrier islands. SBA and Intermediaries may not...

  9. 25 CFR 175.40 - Financing of extensions and upgrades.

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ... 25 Indians 1 2011-04-01 2011-04-01 false Financing of extensions and upgrades. 175.40 Section 175.40 Indians BUREAU OF INDIAN AFFAIRS, DEPARTMENT OF THE INTERIOR LAND AND WATER INDIAN ELECTRIC POWER UTILITIES System Extensions and Upgrades § 175.40 Financing of extensions and upgrades. (a) The utility...

  10. 25 CFR 175.40 - Financing of extensions and upgrades.

    Code of Federal Regulations, 2014 CFR

    2014-04-01

    ... 25 Indians 1 2014-04-01 2014-04-01 false Financing of extensions and upgrades. 175.40 Section 175.40 Indians BUREAU OF INDIAN AFFAIRS, DEPARTMENT OF THE INTERIOR LAND AND WATER INDIAN ELECTRIC POWER UTILITIES System Extensions and Upgrades § 175.40 Financing of extensions and upgrades. (a) The utility...

  11. 25 CFR 175.40 - Financing of extensions and upgrades.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ... 25 Indians 1 2010-04-01 2010-04-01 false Financing of extensions and upgrades. 175.40 Section 175.40 Indians BUREAU OF INDIAN AFFAIRS, DEPARTMENT OF THE INTERIOR LAND AND WATER INDIAN ELECTRIC POWER UTILITIES System Extensions and Upgrades § 175.40 Financing of extensions and upgrades. (a) The utility...

  12. 25 CFR 175.40 - Financing of extensions and upgrades.

    Code of Federal Regulations, 2012 CFR

    2012-04-01

    ... 25 Indians 1 2012-04-01 2011-04-01 true Financing of extensions and upgrades. 175.40 Section 175.40 Indians BUREAU OF INDIAN AFFAIRS, DEPARTMENT OF THE INTERIOR LAND AND WATER INDIAN ELECTRIC POWER UTILITIES System Extensions and Upgrades § 175.40 Financing of extensions and upgrades. (a) The utility...

  13. 25 CFR 175.40 - Financing of extensions and upgrades.

    Code of Federal Regulations, 2013 CFR

    2013-04-01

    ... 25 Indians 1 2013-04-01 2013-04-01 false Financing of extensions and upgrades. 175.40 Section 175.40 Indians BUREAU OF INDIAN AFFAIRS, DEPARTMENT OF THE INTERIOR LAND AND WATER INDIAN ELECTRIC POWER UTILITIES System Extensions and Upgrades § 175.40 Financing of extensions and upgrades. (a) The utility...

  14. 14 CFR 23.175 - Demonstration of static longitudinal stability.

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ... stability. 23.175 Section 23.175 Aeronautics and Space FEDERAL AVIATION ADMINISTRATION, DEPARTMENT OF... Flight Stability § 23.175 Demonstration of static longitudinal stability. Static longitudinal stability must be shown as follows: (a) Climb. The stick force curve must have a stable slope at speeds...

  15. 14 CFR 25.175 - Demonstration of static longitudinal stability.

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ... stability. 25.175 Section 25.175 Aeronautics and Space FEDERAL AVIATION ADMINISTRATION, DEPARTMENT OF TRANSPORTATION AIRCRAFT AIRWORTHINESS STANDARDS: TRANSPORT CATEGORY AIRPLANES Flight Stability § 25.175 Demonstration of static longitudinal stability. Static longitudinal stability must be shown as follows:...

  16. 29 CFR 1952.175 - Changes to approved plans.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... 29 Labor 9 2012-07-01 2012-07-01 false Changes to approved plans. 1952.175 Section 1952.175 Labor Regulations Relating to Labor (Continued) OCCUPATIONAL SAFETY AND HEALTH ADMINISTRATION, DEPARTMENT OF LABOR (CONTINUED) APPROVED STATE PLANS FOR ENFORCEMENT OF STATE STANDARDS California § 1952.175 Changes to approved plans. (a) In accordance...

  17. 40 CFR 98.175 - Procedures for estimating missing data.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... 40 Protection of Environment 21 2014-07-01 2014-07-01 false Procedures for estimating missing data. 98.175 Section 98.175 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) AIR PROGRAMS (CONTINUED) MANDATORY GREENHOUSE GAS REPORTING Iron and Steel Production § 98.175 Procedures for estimating missing data. A complete record...

  18. 40 CFR 98.175 - Procedures for estimating missing data.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... 40 Protection of Environment 22 2013-07-01 2013-07-01 false Procedures for estimating missing data. 98.175 Section 98.175 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) AIR PROGRAMS (CONTINUED) MANDATORY GREENHOUSE GAS REPORTING Iron and Steel Production § 98.175 Procedures for estimating missing data. A complete record...

  19. 7 CFR 1726.175 - General plant materials.

    Code of Federal Regulations, 2011 CFR

    2011-01-01

    ... 7 Agriculture 11 2011-01-01 2011-01-01 false General plant materials. 1726.175 Section 1726.175... AGRICULTURE ELECTRIC SYSTEM CONSTRUCTION POLICIES AND PROCEDURES General Plant § 1726.175 General plant... determine the procurement method that best meets its needs for purchase of general plant material...

  20. 7 CFR 1726.175 - General plant materials.

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ... 7 Agriculture 11 2010-01-01 2010-01-01 false General plant materials. 1726.175 Section 1726.175... AGRICULTURE ELECTRIC SYSTEM CONSTRUCTION POLICIES AND PROCEDURES General Plant § 1726.175 General plant... determine the procurement method that best meets its needs for purchase of general plant material...

  1. 25 CFR 175.50 - Obtaining rights-of-way.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ... 25 Indians 1 2010-04-01 2010-04-01 false Obtaining rights-of-way. 175.50 Section 175.50 Indians BUREAU OF INDIAN AFFAIRS, DEPARTMENT OF THE INTERIOR LAND AND WATER INDIAN ELECTRIC POWER UTILITIES Rights-of-Way § 175.50 Obtaining rights-of-way. Where there is no existing right(s)-of-way for...

  2. 25 CFR 175.31 - Methods and terms of payment.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ... 25 Indians 1 2010-04-01 2010-04-01 false Methods and terms of payment. 175.31 Section 175.31 Indians BUREAU OF INDIAN AFFAIRS, DEPARTMENT OF THE INTERIOR LAND AND WATER INDIAN ELECTRIC POWER UTILITIES Billing, Payments, and Collections § 175.31 Methods and terms of payment. Payments shall be...

  3. 25 CFR 175.21 - Discontinuance of service.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ... 25 Indians 1 2010-04-01 2010-04-01 false Discontinuance of service. 175.21 Section 175.21 Indians BUREAU OF INDIAN AFFAIRS, DEPARTMENT OF THE INTERIOR LAND AND WATER INDIAN ELECTRIC POWER UTILITIES Utility Service Administration § 175.21 Discontinuance of service. Failure of customer(s) to comply...

  4. 25 CFR 175.60 - Appeals to the area director.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ... 25 Indians 1 2010-04-01 2010-04-01 false Appeals to the area director. 175.60 Section 175.60 Indians BUREAU OF INDIAN AFFAIRS, DEPARTMENT OF THE INTERIOR LAND AND WATER INDIAN ELECTRIC POWER UTILITIES Appeals § 175.60 Appeals to the area director. (a) Any person adversely affected by a...

  5. 37 CFR 1.75 - Claim(s).

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... 37 Patents, Trademarks, and Copyrights 1 2012-07-01 2012-07-01 false Claim(s). 1.75 Section 1.75... GENERAL RULES OF PRACTICE IN PATENT CASES National Processing Provisions Specification § 1.75 Claim(s). (a.... (35 U.S.C. 6; 15 U.S.C. 1113, 1126)...

  6. 37 CFR 1.75 - Claim(s).

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 37 Patents, Trademarks, and Copyrights 1 2010-07-01 2010-07-01 false Claim(s). 1.75 Section 1.75... GENERAL RULES OF PRACTICE IN PATENT CASES National Processing Provisions Specification § 1.75 Claim(s). (a.... (35 U.S.C. 6; 15 U.S.C. 1113, 1126)...

  7. 37 CFR 1.75 - Claim(s).

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... 37 Patents, Trademarks, and Copyrights 1 2014-07-01 2014-07-01 false Claim(s). 1.75 Section 1.75... GENERAL RULES OF PRACTICE IN PATENT CASES National Processing Provisions Specification § 1.75 Claim(s). (a.... (35 U.S.C. 6; 15 U.S.C. 1113, 1126)...

  8. 37 CFR 1.75 - Claim(s).

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... 37 Patents, Trademarks, and Copyrights 1 2013-07-01 2013-07-01 false Claim(s). 1.75 Section 1.75... GENERAL RULES OF PRACTICE IN PATENT CASES National Processing Provisions Specification § 1.75 Claim(s). (a.... (35 U.S.C. 6; 15 U.S.C. 1113, 1126)...

  9. 37 CFR 1.75 - Claim(s).

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... 37 Patents, Trademarks, and Copyrights 1 2011-07-01 2011-07-01 false Claim(s). 1.75 Section 1.75... GENERAL RULES OF PRACTICE IN PATENT CASES National Processing Provisions Specification § 1.75 Claim(s). (a.... (35 U.S.C. 6; 15 U.S.C. 1113, 1126)...

  10. 14 CFR 91.175 - Takeoff and landing under IFR.

    Code of Federal Regulations, 2011 CFR

    2011-01-01

    ... 14 Aeronautics and Space 2 2011-01-01 2011-01-01 false Takeoff and landing under IFR. 91.175 Section 91.175 Aeronautics and Space FEDERAL AVIATION ADMINISTRATION, DEPARTMENT OF TRANSPORTATION (CONTINUED) AIR TRAFFIC AND GENERAL OPERATING RULES GENERAL OPERATING AND FLIGHT RULES Flight Rules Instrument Flight Rules § 91.175 Takeoff and...

  11. 10 CFR 52.175 - Transfer of manufacturing license.

    Code of Federal Regulations, 2012 CFR

    2012-01-01

    ... 10 Energy 2 2012-01-01 2012-01-01 false Transfer of manufacturing license. 52.175 Section 52.175 Energy NUCLEAR REGULATORY COMMISSION (CONTINUED) LICENSES, CERTIFICATIONS, AND APPROVALS FOR NUCLEAR POWER PLANTS Manufacturing Licenses § 52.175 Transfer of manufacturing license. A manufacturing...

  12. 10 CFR 52.175 - Transfer of manufacturing license.

    Code of Federal Regulations, 2013 CFR

    2013-01-01

    ... 10 Energy 2 2013-01-01 2013-01-01 false Transfer of manufacturing license. 52.175 Section 52.175 Energy NUCLEAR REGULATORY COMMISSION (CONTINUED) LICENSES, CERTIFICATIONS, AND APPROVALS FOR NUCLEAR POWER PLANTS Manufacturing Licenses § 52.175 Transfer of manufacturing license. A manufacturing license may be transferred in accordance with §...

  13. 10 CFR 52.175 - Transfer of manufacturing license.

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ... 10 Energy 2 2010-01-01 2010-01-01 false Transfer of manufacturing license. 52.175 Section 52.175 Energy NUCLEAR REGULATORY COMMISSION (CONTINUED) LICENSES, CERTIFICATIONS, AND APPROVALS FOR NUCLEAR POWER PLANTS Manufacturing Licenses § 52.175 Transfer of manufacturing license. A manufacturing...

  14. 10 CFR 52.175 - Transfer of manufacturing license.

    Code of Federal Regulations, 2014 CFR

    2014-01-01

    ... 10 Energy 2 2014-01-01 2014-01-01 false Transfer of manufacturing license. 52.175 Section 52.175 Energy NUCLEAR REGULATORY COMMISSION (CONTINUED) LICENSES, CERTIFICATIONS, AND APPROVALS FOR NUCLEAR POWER PLANTS Manufacturing Licenses § 52.175 Transfer of manufacturing license. A manufacturing...

  15. 10 CFR 52.175 - Transfer of manufacturing license.

    Code of Federal Regulations, 2011 CFR

    2011-01-01

    ... 10 Energy 2 2011-01-01 2011-01-01 false Transfer of manufacturing license. 52.175 Section 52.175 Energy NUCLEAR REGULATORY COMMISSION (CONTINUED) LICENSES, CERTIFICATIONS, AND APPROVALS FOR NUCLEAR POWER PLANTS Manufacturing Licenses § 52.175 Transfer of manufacturing license. A manufacturing license may be transferred in accordance with §...

  16. 46 CFR 175.600 - Incorporation by reference.

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ... 46 Shipping 7 2014-10-01 2014-10-01 false Incorporation by reference. 175.600 Section 175.600 Shipping COAST GUARD, DEPARTMENT OF HOMELAND SECURITY (CONTINUED) SMALL PASSENGER VESSELS (UNDER 100 GROSS TONS) GENERAL PROVISIONS § 175.600 Incorporation by reference. (a) Certain material is incorporated by reference into this subchapter with...

  17. 46 CFR 175.600 - Incorporation by reference.

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ... 46 Shipping 7 2013-10-01 2013-10-01 false Incorporation by reference. 175.600 Section 175.600 Shipping COAST GUARD, DEPARTMENT OF HOMELAND SECURITY (CONTINUED) SMALL PASSENGER VESSELS (UNDER 100 GROSS TONS) GENERAL PROVISIONS § 175.600 Incorporation by reference. (a) Certain material is incorporated by reference into this subchapter with...

  18. 21 CFR 175.125 - Pressure-sensitive adhesives.

    Code of Federal Regulations, 2013 CFR

    2013-04-01

    ... 21 Food and Drugs 3 2013-04-01 2013-04-01 false Pressure-sensitive adhesives. 175.125 Section 175... Substances for Use Only as Components of Adhesives § 175.125 Pressure-sensitive adhesives. Pressure-sensitive... accordance with the following prescribed conditions: (a) Pressure-sensitive adhesives prepared from one or...

  19. 40 CFR 35.175 - Maximum federal share.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... 40 Protection of Environment 1 2014-07-01 2014-07-01 false Maximum federal share. 35.175 Section 35.175 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY GRANTS AND OTHER FEDERAL ASSISTANCE...)) § 35.175 Maximum federal share. The Regional Administrator may provide a maximum of 75 percent of...

  20. 40 CFR 35.175 - Maximum federal share.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... 40 Protection of Environment 1 2011-07-01 2011-07-01 false Maximum federal share. 35.175 Section 35.175 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY GRANTS AND OTHER FEDERAL ASSISTANCE...)) § 35.175 Maximum federal share. The Regional Administrator may provide a maximum of 75 percent of...

  1. 40 CFR 35.175 - Maximum federal share.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... 40 Protection of Environment 1 2013-07-01 2013-07-01 false Maximum federal share. 35.175 Section 35.175 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY GRANTS AND OTHER FEDERAL ASSISTANCE...)) § 35.175 Maximum federal share. The Regional Administrator may provide a maximum of 75 percent of...

  2. 40 CFR 35.175 - Maximum federal share.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... 40 Protection of Environment 1 2012-07-01 2012-07-01 false Maximum federal share. 35.175 Section 35.175 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY GRANTS AND OTHER FEDERAL ASSISTANCE...)) § 35.175 Maximum federal share. The Regional Administrator may provide a maximum of 75 percent of...

  3. 40 CFR 35.175 - Maximum federal share.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 40 Protection of Environment 1 2010-07-01 2010-07-01 false Maximum federal share. 35.175 Section 35.175 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY GRANTS AND OTHER FEDERAL ASSISTANCE...)) § 35.175 Maximum federal share. The Regional Administrator may provide a maximum of 75 percent of...

  4. 2 CFR 175.5 - Purpose of this part.

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ... 2 Grants and Agreements 1 2010-01-01 2010-01-01 false Purpose of this part. 175.5 Section 175.5 Grants and Agreements OFFICE OF MANAGEMENT AND BUDGET GOVERNMENTWIDE GUIDANCE FOR GRANTS AND AGREEMENTS Reserved AWARD TERM FOR TRAFFICKING IN PERSONS § 175.5 Purpose of this part. This part establishes...

  5. 46 CFR 175.800 - Approved equipment and material.

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ... 46 Shipping 7 2014-10-01 2014-10-01 false Approved equipment and material. 175.800 Section 175.800 Shipping COAST GUARD, DEPARTMENT OF HOMELAND SECURITY (CONTINUED) SMALL PASSENGER VESSELS (UNDER 100 GROSS TONS) GENERAL PROVISIONS § 175.800 Approved equipment and material. (a) Equipment and material that is required by this subchapter to...

  6. 46 CFR 180.175 - Survival craft equipment.

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ... 46 Shipping 7 2014-10-01 2014-10-01 false Survival craft equipment. 180.175 Section 180.175 Shipping COAST GUARD, DEPARTMENT OF HOMELAND SECURITY (CONTINUED) SMALL PASSENGER VESSELS (UNDER 100 GROSS TONS) LIFESAVING EQUIPMENT AND ARRANGEMENTS Survival Craft Arrangements and Equipment § 180.175 Survival craft equipment. (a) General. Each item...

  7. 46 CFR 175.900 - OMB control numbers.

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ... 46 Shipping 7 2014-10-01 2014-10-01 false OMB control numbers. 175.900 Section 175.900 Shipping COAST GUARD, DEPARTMENT OF HOMELAND SECURITY (CONTINUED) SMALL PASSENGER VESSELS (UNDER 100 GROSS TONS) GENERAL PROVISIONS § 175.900 OMB control numbers. (a) Purpose. This section lists the control numbers assigned to information collection...

  8. 19 CFR 10.175 - Imported directly defined.

    Code of Federal Regulations, 2014 CFR

    2014-04-01

    ... 19 Customs Duties 1 2014-04-01 2014-04-01 false Imported directly defined. 10.175 Section 10.175 Customs Duties U.S. CUSTOMS AND BORDER PROTECTION, DEPARTMENT OF HOMELAND SECURITY; DEPARTMENT OF THE... of Preferences § 10.175 Imported directly defined. Eligible articles shall be imported directly...

  9. 25 CFR 175.4 - Authority of area director.

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ... 25 Indians 1 2011-04-01 2011-04-01 false Authority of area director. 175.4 Section 175.4 Indians BUREAU OF INDIAN AFFAIRS, DEPARTMENT OF THE INTERIOR LAND AND WATER INDIAN ELECTRIC POWER UTILITIES General Provisions § 175.4 Authority of area director. The Area Director may delegate authority under...

  10. 25 CFR 175.4 - Authority of area director.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ... 25 Indians 1 2010-04-01 2010-04-01 false Authority of area director. 175.4 Section 175.4 Indians BUREAU OF INDIAN AFFAIRS, DEPARTMENT OF THE INTERIOR LAND AND WATER INDIAN ELECTRIC POWER UTILITIES General Provisions § 175.4 Authority of area director. The Area Director may delegate authority under...

  11. 25 CFR 175.4 - Authority of area director.

    Code of Federal Regulations, 2014 CFR

    2014-04-01

    ... 25 Indians 1 2014-04-01 2014-04-01 false Authority of area director. 175.4 Section 175.4 Indians BUREAU OF INDIAN AFFAIRS, DEPARTMENT OF THE INTERIOR LAND AND WATER INDIAN ELECTRIC POWER UTILITIES General Provisions § 175.4 Authority of area director. The Area Director may delegate authority under...

  12. 25 CFR 175.4 - Authority of area director.

    Code of Federal Regulations, 2012 CFR

    2012-04-01

    ... 25 Indians 1 2012-04-01 2011-04-01 true Authority of area director. 175.4 Section 175.4 Indians BUREAU OF INDIAN AFFAIRS, DEPARTMENT OF THE INTERIOR LAND AND WATER INDIAN ELECTRIC POWER UTILITIES General Provisions § 175.4 Authority of area director. The Area Director may delegate authority under...

  13. 25 CFR 175.4 - Authority of area director.

    Code of Federal Regulations, 2013 CFR

    2013-04-01

    ... 25 Indians 1 2013-04-01 2013-04-01 false Authority of area director. 175.4 Section 175.4 Indians BUREAU OF INDIAN AFFAIRS, DEPARTMENT OF THE INTERIOR LAND AND WATER INDIAN ELECTRIC POWER UTILITIES General Provisions § 175.4 Authority of area director. The Area Director may delegate authority under...

  14. 175Hp contrarotating homopolar motor design report

    NASA Astrophysics Data System (ADS)

    Cannell, Michael J.; Drake, John L.; McConnell, Richard A.; Martino, William R.

    1994-06-01

    A normally conducting contrarotating homopolar motor has been designed and constructed. The reaction torque, in the outer rotor, from the inner rotor is utilized to produce true contrarotation. The machine utilizes liquid cooled conductors, high performance liquid metal current collectors, and ferrous conductors in the active region. The basic machine output is 175 hp at + or - 1,200 rpm with an input of 4 volts and 35,000 amps.

  15. Luminescent properties of trivalent ytterbium ions in sol-gel produced alumina

    NASA Astrophysics Data System (ADS)

    Krebs, John Kenneth

    2000-10-01

    Solution growth of materials now offers a viable alternative to traditional high temperature melt growth processes. The sol-gel method, one such solution technique, chemically produces inorganic materials from aqueous solutions. The sol-gel process can be used to produce alumina, Al2O3 , in a variety of forms from porous, transparent monoliths to ceramics. Aluminum oxide, a large bandgap material (9 eV), has played important roles in the fields of impurity ion spectroscopy and catalysis. High quality single crystals, both natural and synthetic, can serve as a host for a variety of transition metal impurities, which are responsible for crystal coloration. Early studies of the spectroscopy of these crystals provided a proving ground for the quantum theory of solids. Meanwhile, the high surface area polycrystalline forms, referred to as transition aluminas, were finding wide application in the areas of catalysis. Despite the technological importance of solution grown materials, we know little about the role of impurities in these materials. The sol-gel growth technique enables the doping of transition aluminas with precise amounts of optically active impurity ions. These ions probe the structure and dynamics of the materials through interactions with the crystal field produced by the host ions. Recent work has begun to address this important class of materials. In this work, we report on the luminescent properties of trivalent ytterbium doped into alumina. Combining the results of optical measurements performed on single crystal and ceramic samples, we show that the dopants occupy identical sites in the two materials. We identify a set of crystal field parameters for ytterbium ions on the substitutional aluminum cation site. Comparison of the crystal field parameters with those of trivalent ytterbium in Bi4Ge3O12, a host with a larger cation site, shows that the ytterbium, the smallest of the lanthanides, sits near the center of the oxygen octahedron. Finally, studies of ytterbium in nanocrystalline gamma alumina demonstrate the role surfaces play in the relaxation of impurity ion excited states in the bulk. This work demonstrates a new method for studying metal oxide surfaces using optical probe ions.

  16. Erbium-ytterbium-yttrium compounds for light emission at 1.54microm

    NASA Astrophysics Data System (ADS)

    Vanhoutte, Michiel

    Silicon microphotonics? has emerged as the leading technology to overcome the interconnect bottleneck that limits a further increase of computation power following Moore's law. Optical interconnects between different electronic microprocessors in an electronic-photonic integrated circuit (EPIC) can provide a fast, low-loss and highbandwidth alternative to electrical interconnects, which suffer from issues such as resistive heating, RC delays and channel crosstalk at an increasing device density. A crucial device in such an electronic-photonic integrated circuit is a compact, highgain and low power optical amplifier to compensate for signal attenuation due to propagation losses and to recover signal strength after subsequent 3dB splits during fanout of the optical signal to different microprocessors. Erbium ions (Er3+) are an excellent candidate to provide amplification around .. = 1.54pm for optical telecommunications. Erbium-doped fiber amplifiers (EDFAs) have already enabled long-haul optical data. transmission through silica optical fibers, but scaling down a fiber amplifier to an on-chip erbium-doped waveguide amplifier (EDWA) brings along significant materials and device design challenges. In this thesis, erbium-ytterbium oxide (Erx Yb2-xO 3) and erbium-ytterbium-yttrium silicate (ErxYhyY 2-x-ySi2O7) compounds are investigated as novel materials systems for the development of EDWAs. The high erbium and ytterbium solubility (>1022 cm-3) and refractive index (1.71 < n < 1.92) make these materials excellent candidates for compact, low-power optical amplifiers. Erx Yb2-xO 3 and ErxYhyY2-x-ySi2O 7 thin films were deposited on SiO2 and analyzed structurally and optically. The role of ytterbium in these compounds is twofold. First, ytterbium can be used as an alternative to yttrium for dilution of the erbium concentration in order to mitigate parasitic concentration quenching effects. Second, ytterbium acts as a sensitizer for erbium during optical pumping at lambda = 980nm. Comparison of the different oxide and silicate thin films reveals that the alpha-disilicate phase is the best candidate for an EDWA gain medium pumped at lambda = 980nm. By means of rate and propagation equations, the composition of an Er xYhyY2-x-ySi2O7 gain medium was optimized for application as a 3dB EDWA. The optimal composition was found to be Er0.025Yb0.200Yb0.200Y1.775Si 2O7, which provides a 1.5dB/cm gain at only 3mW of pump power. In terms of the figure of merit 3dB gain/(device area ? pump power), this material outperforms other EDWA materials reported in literature. (Copies available exclusively from MIT Libraries, libraries.mit.edu/docs - docs mit.edu)

  17. Theoretical study on isotope separation of an ytterbium atomic beam by laser deflection

    NASA Astrophysics Data System (ADS)

    Zhou, Min; Xu, Xin-Ye

    2014-01-01

    Isotope separation by laser deflecting an atomic beam is analyzed theoretically. Interacting with a tilted one-dimensional optical molasses, an ytterbium atomic beam is split into multi-beams with different isotopes like 172Yb,173Yb, and 174Yb. By using the numerical calculation, the dependences of the splitting angle on the molasses laser intensity and detuning are studied, and the optimal parameters for the isotope separation are also investigated. Furthermore, the isotope separation efficiency and purity are estimated. Finally a new scheme for the efficient isotope separation is proposed. These findings will give a guideline for simply obtaining pure isotopes of various elements.

  18. Optical excitation and decay dynamics of ytterbium atoms embedded in a solid neon matrix.

    SciTech Connect

    Xu, C.-Y.; Hu, S.-M.; Singh, J.; Bailey, K.; Lu, Z.-T.; Mueller, P.; O'Connor, T. P.; Welp, U.

    2011-09-01

    Neutral ytterbium atoms embedded in solid neon qualitatively retain the structure of free atoms. Despite the atom-solid interaction, the 6s6p {sup 3}P{sub 0} level is found to remain metastable with its lifetimes determined to be in the range of ten to hundreds of seconds. The atomic population can be almost completely transferred between the ground level and the metastable level via optical excitation and spontaneous decay. The dynamics of this process is examined and is used to explicitly demonstrate that the transition broadening mechanism is homogeneous.

  19. Optical Excitation and Decay Dynamics of Ytterbium Atoms Embedded in a Solid Neon Matrix

    SciTech Connect

    Xu, C.-Y.; Lu, Z.-T.; Hu, S.-M.; Singh, J.; Bailey, K.; Mueller, P.; O'Connor, T. P.; Welp, U.

    2011-08-26

    Neutral ytterbium atoms embedded in solid neon qualitatively retain the structure of free atoms. Despite the atom-solid interaction, the 6s6p {sup 3}P{sub 0} level is found to remain metastable with its lifetimes determined to be in the range of ten to hundreds of seconds. The atomic population can be almost completely transferred between the ground level and the metastable level via optical excitation and spontaneous decay. The dynamics of this process is examined and is used to explicitly demonstrate that the transition broadening mechanism is homogeneous.

  20. Cladding-pumped ytterbium-doped fiber laser with radially polarized output.

    PubMed

    Lin, Di; Daniel, J M O; Gecevi?ius, M; Beresna, M; Kazansky, P G; Clarkson, W A

    2014-09-15

    A simple technique for directly generating a radially polarized output beam from a cladding-pumped ytterbium-doped fiber laser is reported. Our approach is based on the use of a nanograting spatially variant waveplate as an intracavity polarization-controlling element. The laser yielded ?32??W of output power (limited by available pump power) with a radially polarized TM01-mode output beam at 1040 nm with a corresponding slope efficiency of 66% and a polarization purity of 95%. The beam-propagation factor (M2) was measured to be ?1.9-2.1. PMID:26466271

  1. Temporal evolution and correlation between cooperative luminescence and photodarkening in ytterbium doped silica fibers.

    PubMed

    Gebavi, Hrvoje; Taccheo, Stefano; Milanese, Daniel; Monteville, Achille; Le Goffic, Olivier; Landais, David; Mechin, David; Tregoat, Denis; Cadier, Benoit; Robin, Thierry

    2011-12-01

    The present work describes photodarkening from the viewpoint of cooperative luminescence. The temporal evolution of both effects was measured simultaneously by means of ytterbium doped aluminosilicate fibers for concentrations up to 1.8 wt% Yb3+. The quadratic dependence of photodarkening and cooperative luminescence versus dopant concentration was observed. The change in the photodarkening and cooperative luminescence mutual dynamics for highly and low doped fibers is ascribed to a different ion number which forms the cluster. Cooperative luminescence is proved to be a natural probe for photodarkening since it provides new pieces of information and contributes to the photodarkening mechanism description. PMID:22273899

  2. Long-range Rydberg-Rydberg interactions in calcium, strontium and ytterbium

    E-print Network

    C. L. Vaillant; M. P. A. Jones; R. M. Potvliege

    2012-05-11

    Long-range dipole-dipole and quadrupole-quadrupole interactions between pairs of Rydberg atoms are calculated perturbatively for calcium, strontium and ytterbium within the Coulomb approximation. Quantum defects, obtained by fitting existing laser spectroscopic data, are provided for all $S$, $P$, $D$ and $F$ series of strontium and for the $^3P_2$ series of calcium. The results show qualitative differences with the alkali metal atoms, including isotropically attractive interactions of the strontium $^1S_0$ states and a greater rarity of F\\"orster resonances. Only two such resonances are identified, both in triplet series of strontium. The angular dependence of the long range interaction is briefly discussed.

  3. Tunable triple-wavelength mode-locked ytterbium fiber laser with birefringence filter

    NASA Astrophysics Data System (ADS)

    Lv, Zhiguo; Teng, Hao; Wang, Rui; Wang, Lina; Wang, Junli; Wei, Zhiyi

    2015-10-01

    A mode-locked ytterbium fiber laser based on all normal dispersion (ANDi) technique and nonlinear polarization rotation (NPR) is investigated with birefringent plate as a spectral filter in this paper. Tunable triple-wavelength simultaneous operation is realized at central wavelengths of 1031.4, 1046.8 and 1066.5 nm, respectively. A maximum output power up to 161.4 mW is obtained at 1031.4 nm wavelength. By only changing the direction of the optical axis of the uniaxial birefringent filter, tunable range as wide as 19 nm is demonstrated. To the best of our knowledge, this is the widest tuning range and highest power reported so far for ANDi mode-locked ytterbium fiber lasers with triple-wavelength operation. Our analysis shows that the mechanism of the triple-wavelength mode-locked operation results mainly from the four-wave mixing in optical fibers; in addition, the wide gain bandwidth of Yb also plays a critical role for the stable oscillation of the third mode-locked wavelength. The energy conversion process governed by a set of four coupled equations is realized experimentally through the adjustment of the polarization controller, which is related to the phase matching.

  4. Production of No-Carrier Added Lutetium-177 by Irradiation of Enriched Ytterbium-176.

    PubMed

    Tarasov, Valery A; Andreev, Oleg I; Romanov, Evgeny G; Kuznetsov, Rostislav A; Kupriyanov, Vladimir V; Tselishchev, Ivan V

    2015-01-01

    Two methods of Lu-177 production are reviewed: irradiation of isotopically enriched Lu- 176 (direct way) and irradiation of ytterbium enriched with Yb-176 (indirect way). Based on neutronphysical calculations Lu-177 yield and specific activity were estimated for both methods. Lu-177 specific activity strongly depends on neutron flux density in the direct way, that is 75,000 Ci/g for 10- days irradiation in a neutron flux of 2.10(15) cm(-2) s(-1), and only 13,000 Ci/g after 30 days irradiation at neutron flux 1.10(14) cm(-2) s(-1). Irradiation of Yb-176 provides Lu-177 specific activity close to theoretical value (110,000 Ci/g). Neutron flux density effect Lu-177 yield, that is 530 Ci/g for 2.1015 cm(-2) s(-1) neutron flux density after 30 days irradiation. A procedure of isolation and purification of Lu-177 from irradiated targets is described based on combination of galvanostatic extraction of ytterbium followed by cation-exchange chromatography from alfa-hydroxyisobutirate solutions on BioRad AG(®)50W-X8 resin. PMID:25771378

  5. High-quality laser cutting of stainless steel in inert gas atmosphere by ytterbium fibre and CO{sub 2} lasers

    SciTech Connect

    Golyshev, A A; Malikov, A G; Orishich, A M; Shulyat'ev, V B

    2014-03-28

    Processes of cutting stainless steel by ytterbium fibre and CO{sub 2} lasers have been experimentally compared. The cut surface roughnesses for 3- and 5-mm-thick stainless steel sheets are determined. The absorption coefficient of laser radiation during cutting is measured. It is established that the power absorbed by metal during cutting by the CO{sub 2} laser exceeds that for the ytterbium laser (provided that the cutting speed remains the same). The fact that the maximum cutting speed of the CO{sub 2} laser is lower than that of the ytterbium fibre laser is explained. (laser technologies)

  6. 1744 OPTICS LETTERS / Vol. 21, No. 21 / November 1, 1996 Dual-stage erbium-doped, erbium/ytterbium-codoped

    E-print Network

    Park, Namkyoo

    1744 OPTICS LETTERS / Vol. 21, No. 21 / November 1, 1996 Dual-stage erbium-doped, erbium Received June 3, 1996 By concatenating an aluminum-codoped erbium-doped fiber with an efficient erbium energy transfer between erbium and ytterbium ions, we are able to pump the second stage with a high

  7. Valence transition 2+ ? 3+ induced in ytterbium nanofilms by CO and O2 molecules chemisorbed on their surface

    NASA Astrophysics Data System (ADS)

    Buturovich, D. V.; Kuz'min, M. V.; Loginov, M. V.; Mittsev, M. A.

    2015-09-01

    Transformations of the surface and bulk of nanoscale ytterbium films during the surface interactions of these films with different ligand molecules have been studied. It has been shown that a combination of two factors, i.e., the existence of a lone electron pair in CO and O2 molecules and the unoccupied 5 d level lying near the Fermi level in metallic divalent ytterbium, causes the formation of a stable chemisorption state of the molecule-nanofilm surface layer in which donor-acceptor bonds between gas molecules and surface metal ions are formed. As a result, ytterbium on the surface and in the bulk of the nanofilm is oxidized to a non-autonomous trivalent electronic state. The depth to which this transition propagates in the nanofilm has been determined; its anomalously large value (from 9 to 22 layers according to different estimates) has been explained. It has also been shown that the ligand molecule layer on the ytterbium surface is filled in two stages. The two-stage mechanism of this process is reflected by the nonmonotonic behavior of concentration dependences of the work function of CO-Yb and O2-Yb structures.

  8. 50 CFR 622.173-622.175 - [Reserved

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ... 50 Wildlife and Fisheries 12 2013-10-01 2013-10-01 false 622.173-622.175 Section 622.173-622.175 Wildlife and Fisheries FISHERY CONSERVATION AND MANAGEMENT, NATIONAL OCEANIC AND ATMOSPHERIC ADMINISTRATION, DEPARTMENT OF COMMERCE FISHERIES OF THE CARIBBEAN, GULF OF MEXICO, AND SOUTH ATLANTIC Snapper-Grouper...

  9. 50 CFR 622.173-622.175 - [Reserved

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ... 50 Wildlife and Fisheries 12 2014-10-01 2014-10-01 false 622.173-622.175 Section 622.173-622.175 Wildlife and Fisheries FISHERY CONSERVATION AND MANAGEMENT, NATIONAL OCEANIC AND ATMOSPHERIC ADMINISTRATION, DEPARTMENT OF COMMERCE FISHERIES OF THE CARIBBEAN, GULF OF MEXICO, AND SOUTH ATLANTIC Snapper-Grouper...

  10. 27 CFR 27.175 - Receipt by consignee.

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ... requirements in 27 CFR part 19 for spirits received by transfer in bond. However, proprietors are not required... 27 Alcohol, Tobacco Products and Firearms 1 2011-04-01 2011-04-01 false Receipt by consignee. 27.175 Section 27.175 Alcohol, Tobacco Products and Firearms ALCOHOL AND TOBACCO TAX AND TRADE...

  11. 27 CFR 27.175 - Receipt by consignee.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ... requirements in 27 CFR part 19 for spirits received by transfer in bond. However, proprietors are not required... 27 Alcohol, Tobacco Products and Firearms 1 2010-04-01 2010-04-01 false Receipt by consignee. 27.175 Section 27.175 Alcohol, Tobacco Products and Firearms ALCOHOL AND TOBACCO TAX AND TRADE...

  12. 21 CFR 175.300 - Resinous and polymeric coatings.

    Code of Federal Regulations, 2012 CFR

    2012-04-01

    ... 21 Food and Drugs 3 2012-04-01 2012-04-01 false Resinous and polymeric coatings. 175.300 Section 175.300 Food and Drugs FOOD AND DRUG ADMINISTRATION, DEPARTMENT OF HEALTH AND HUMAN SERVICES (CONTINUED) FOOD FOR HUMAN CONSUMPTION (CONTINUED) INDIRECT FOOD ADDITIVES: ADHESIVES AND COMPONENTS OF COATINGS Substances for Use as Components of...

  13. 13 CFR 120.175 - Coastal barrier islands.

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ... 13 Business Credit and Assistance 1 2010-01-01 2010-01-01 false Coastal barrier islands. 120.175... Applying to All Business Loans Requirements Imposed Under Other Laws and Orders § 120.175 Coastal barrier islands. SBA and Intermediaries may not make or guarantee any loan within the Coastal Barrier...

  14. 13 CFR 120.175 - Coastal barrier islands.

    Code of Federal Regulations, 2014 CFR

    2014-01-01

    ... 13 Business Credit and Assistance 1 2014-01-01 2014-01-01 false Coastal barrier islands. 120.175... Applying to All Business Loans Requirements Imposed Under Other Laws and Orders § 120.175 Coastal barrier islands. SBA and Intermediaries may not make or guarantee any loan within the Coastal Barrier...

  15. 13 CFR 120.175 - Coastal barrier islands.

    Code of Federal Regulations, 2011 CFR

    2011-01-01

    ... 13 Business Credit and Assistance 1 2011-01-01 2011-01-01 false Coastal barrier islands. 120.175... Applying to All Business Loans Requirements Imposed Under Other Laws and Orders § 120.175 Coastal barrier islands. SBA and Intermediaries may not make or guarantee any loan within the Coastal Barrier...

  16. 13 CFR 120.175 - Coastal barrier islands.

    Code of Federal Regulations, 2013 CFR

    2013-01-01

    ... 13 Business Credit and Assistance 1 2013-01-01 2013-01-01 false Coastal barrier islands. 120.175... Applying to All Business Loans Requirements Imposed Under Other Laws and Orders § 120.175 Coastal barrier islands. SBA and Intermediaries may not make or guarantee any loan within the Coastal Barrier...

  17. 45 CFR 17.5 - Context to be reflected.

    Code of Federal Regulations, 2012 CFR

    2012-10-01

    ... 45 Public Welfare 1 2012-10-01 2012-10-01 false Context to be reflected. 17.5 Section 17.5 Public Welfare DEPARTMENT OF HEALTH AND HUMAN SERVICES GENERAL ADMINISTRATION RELEASE OF ADVERSE INFORMATION TO... be made clear, where appropriate, the release shall explain the nature of any studies performed,...

  18. 45 CFR 17.5 - Context to be reflected.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... 45 Public Welfare 1 2010-10-01 2010-10-01 false Context to be reflected. 17.5 Section 17.5 Public Welfare DEPARTMENT OF HEALTH AND HUMAN SERVICES GENERAL ADMINISTRATION RELEASE OF ADVERSE INFORMATION TO... be made clear, where appropriate, the release shall explain the nature of any studies performed,...

  19. 49 CFR 175.9 - Special aircraft operations.

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ... aircraft. Operators must have all applicable requirements prescribed in 14 CFR Part 133 approved by the FAA... 49 Transportation 2 2011-10-01 2011-10-01 false Special aircraft operations. 175.9 Section 175.9... ADMINISTRATION, DEPARTMENT OF TRANSPORTATION HAZARDOUS MATERIALS REGULATIONS CARRIAGE BY AIRCRAFT...

  20. 49 CFR 175.9 - Special aircraft operations.

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ... aircraft. Operators must have all applicable requirements prescribed in 14 CFR part 133 approved by the FAA... 49 Transportation 2 2014-10-01 2014-10-01 false Special aircraft operations. 175.9 Section 175.9... ADMINISTRATION, DEPARTMENT OF TRANSPORTATION HAZARDOUS MATERIALS REGULATIONS CARRIAGE BY AIRCRAFT...

  1. 49 CFR 175.9 - Exceptions for special aircraft operations.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... 49 Transportation 2 2010-10-01 2010-10-01 false Exceptions for special aircraft operations. 175.9... SAFETY ADMINISTRATION, DEPARTMENT OF TRANSPORTATION HAZARDOUS MATERIALS REGULATIONS CARRIAGE BY AIRCRAFT General Information and Regulations § 175.9 Exceptions for special aircraft operations. This...

  2. 49 CFR 175.9 - Special aircraft operations.

    Code of Federal Regulations, 2012 CFR

    2012-10-01

    ... aircraft. Operators must have all applicable requirements prescribed in 14 CFR Part 133 approved by the FAA... 49 Transportation 2 2012-10-01 2012-10-01 false Special aircraft operations. 175.9 Section 175.9... ADMINISTRATION, DEPARTMENT OF TRANSPORTATION HAZARDOUS MATERIALS REGULATIONS CARRIAGE BY AIRCRAFT...

  3. 49 CFR 175.9 - Special aircraft operations.

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ... aircraft. Operators must have all applicable requirements prescribed in 14 CFR Part 133 approved by the FAA... 49 Transportation 2 2013-10-01 2013-10-01 false Special aircraft operations. 175.9 Section 175.9... ADMINISTRATION, DEPARTMENT OF TRANSPORTATION HAZARDOUS MATERIALS REGULATIONS CARRIAGE BY AIRCRAFT...

  4. 21 CFR 161.175 - Frozen raw breaded shrimp.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ... for composite units held in storage at 0 °F). If the composite units were prepared using batters that... 21 Food and Drugs 2 2010-04-01 2010-04-01 false Frozen raw breaded shrimp. 161.175 Section 161.175 Food and Drugs FOOD AND DRUG ADMINISTRATION, DEPARTMENT OF HEALTH AND HUMAN SERVICES (CONTINUED)...

  5. 21 CFR 161.175 - Frozen raw breaded shrimp.

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ... for composite units held in storage at 0 °F). If the composite units were prepared using batters that... 21 Food and Drugs 2 2011-04-01 2011-04-01 false Frozen raw breaded shrimp. 161.175 Section 161.175 Food and Drugs FOOD AND DRUG ADMINISTRATION, DEPARTMENT OF HEALTH AND HUMAN SERVICES (CONTINUED)...

  6. 25 CFR 175.10 - Revenues collected from power operations.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ... 175.10 Indians BUREAU OF INDIAN AFFAIRS, DEPARTMENT OF THE INTERIOR LAND AND WATER INDIAN ELECTRIC POWER UTILITIES Service Fees, Electric Power Rates and Revenues § 175.10 Revenues collected from power operations. The Area Director shall set service fees and electric power rates in accordance with...

  7. 25 CFR 175.22 - Requirements for receiving electrical service.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ... Section 175.22 Indians BUREAU OF INDIAN AFFAIRS, DEPARTMENT OF THE INTERIOR LAND AND WATER INDIAN ELECTRIC POWER UTILITIES Utility Service Administration § 175.22 Requirements for receiving electrical service... service, shall enter into a written service agreement or special contract for electrical power services....

  8. 26 CFR 1.175-5 - Percentage limitation and carryover.

    Code of Federal Regulations, 2013 CFR

    2013-04-01

    ... taxable year is limited to 25 percent of his “gross income from farming”. (2) Definition of “gross income from farming.” For the purpose of section 175, the term gross income from farming means the gross income of the taxpayer, derived in “the business of farming” as defined in § 1.175-3, from the...

  9. 26 CFR 1.175-5 - Percentage limitation and carryover.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ... is limited to 25 percent of his “gross income from farming”. (2) Definition of “gross income from farming.” For the purpose of section 175, the term gross income from farming means the gross income of the taxpayer, derived in “the business of farming” as defined in § 1.175-3, from the production of...

  10. 26 CFR 1.175-5 - Percentage limitation and carryover.

    Code of Federal Regulations, 2014 CFR

    2014-04-01

    ... taxable year is limited to 25 percent of his “gross income from farming”. (2) Definition of “gross income from farming.” For the purpose of section 175, the term gross income from farming means the gross income of the taxpayer, derived in “the business of farming” as defined in § 1.175-3, from the...

  11. 26 CFR 1.175-5 - Percentage limitation and carryover.

    Code of Federal Regulations, 2012 CFR

    2012-04-01

    ... taxable year is limited to 25 percent of his “gross income from farming”. (2) Definition of “gross income from farming.” For the purpose of section 175, the term gross income from farming means the gross income of the taxpayer, derived in “the business of farming” as defined in § 1.175-3, from the...

  12. 26 CFR 1.175-5 - Percentage limitation and carryover.

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ... taxable year is limited to 25 percent of his “gross income from farming”. (2) Definition of “gross income from farming.” For the purpose of section 175, the term gross income from farming means the gross income of the taxpayer, derived in “the business of farming” as defined in § 1.175-3, from the...

  13. 25 CFR 175.11 - Procedures for setting service fees.

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ... UTILITIES Service Fees, Electric Power Rates and Revenues § 175.11 Procedures for setting service fees. The Area Director shall establish, and amend as needed, service fees to cover the expense of customer... 25 Indians 1 2011-04-01 2011-04-01 false Procedures for setting service fees. 175.11 Section...

  14. 25 CFR 175.11 - Procedures for setting service fees.

    Code of Federal Regulations, 2012 CFR

    2012-04-01

    ... UTILITIES Service Fees, Electric Power Rates and Revenues § 175.11 Procedures for setting service fees. The Area Director shall establish, and amend as needed, service fees to cover the expense of customer... 25 Indians 1 2012-04-01 2011-04-01 true Procedures for setting service fees. 175.11 Section...

  15. 25 CFR 175.11 - Procedures for setting service fees.

    Code of Federal Regulations, 2013 CFR

    2013-04-01

    ... UTILITIES Service Fees, Electric Power Rates and Revenues § 175.11 Procedures for setting service fees. The Area Director shall establish, and amend as needed, service fees to cover the expense of customer... 25 Indians 1 2013-04-01 2013-04-01 false Procedures for setting service fees. 175.11 Section...

  16. 25 CFR 175.11 - Procedures for setting service fees.

    Code of Federal Regulations, 2014 CFR

    2014-04-01

    ... UTILITIES Service Fees, Electric Power Rates and Revenues § 175.11 Procedures for setting service fees. The Area Director shall establish, and amend as needed, service fees to cover the expense of customer... 25 Indians 1 2014-04-01 2014-04-01 false Procedures for setting service fees. 175.11 Section...

  17. 25 CFR 175.11 - Procedures for setting service fees.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ... UTILITIES Service Fees, Electric Power Rates and Revenues § 175.11 Procedures for setting service fees. The Area Director shall establish, and amend as needed, service fees to cover the expense of customer... 25 Indians 1 2010-04-01 2010-04-01 false Procedures for setting service fees. 175.11 Section...

  18. 2 CFR 175.5 - Purpose of this part.

    Code of Federal Regulations, 2011 CFR

    2011-01-01

    ... 2 Grants and Agreements 1 2011-01-01 2011-01-01 false Purpose of this part. 175.5 Section 175.5 Grants and Agreements Office of Management and Budget Guidance for Grants and Agreements OFFICE OF MANAGEMENT AND BUDGET GOVERNMENTWIDE GUIDANCE FOR GRANTS AND AGREEMENTS AWARD TERM FOR TRAFFICKING IN...

  19. 2 CFR 175.5 - Purpose of this part.

    Code of Federal Regulations, 2014 CFR

    2014-01-01

    ... 2 Grants and Agreements 1 2014-01-01 2014-01-01 false Purpose of this part. 175.5 Section 175.5 Grants and Agreements Office of Management and Budget Guidance for Grants and Agreements OFFICE OF MANAGEMENT AND BUDGET GOVERNMENTWIDE GUIDANCE FOR GRANTS AND AGREEMENTS Reserved AWARD TERM FOR...

  20. 2 CFR 175.5 - Purpose of this part.

    Code of Federal Regulations, 2013 CFR

    2013-01-01

    ... 2 Grants and Agreements 1 2013-01-01 2013-01-01 false Purpose of this part. 175.5 Section 175.5 Grants and Agreements Office of Management and Budget Guidance for Grants and Agreements OFFICE OF MANAGEMENT AND BUDGET GOVERNMENTWIDE GUIDANCE FOR GRANTS AND AGREEMENTS NATIONAL POLICY REQUIREMENTS...

  1. 2 CFR 175.5 - Purpose of this part.

    Code of Federal Regulations, 2012 CFR

    2012-01-01

    ... 2 Grants and Agreements 1 2012-01-01 2012-01-01 false Purpose of this part. 175.5 Section 175.5 Grants and Agreements Office of Management and Budget Guidance for Grants and Agreements OFFICE OF MANAGEMENT AND BUDGET GOVERNMENTWIDE GUIDANCE FOR GRANTS AND AGREEMENTS NATIONAL POLICY REQUIREMENTS...

  2. 21 CFR 175.300 - Resinous and polymeric coatings.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ... 21 Food and Drugs 3 2010-04-01 2009-04-01 true Resinous and polymeric coatings. 175.300 Section 175.300 Food and Drugs FOOD AND DRUG ADMINISTRATION, DEPARTMENT OF HEALTH AND HUMAN SERVICES (CONTINUED) FOOD FOR HUMAN CONSUMPTION (CONTINUED) INDIRECT FOOD ADDITIVES: ADHESIVES AND COMPONENTS OF COATINGS Substances for Use as Components of Coatings...

  3. TEXAS FEEDER SCHOOLS SUPPLEMENT TO SB 175 REPORT FOR 2013

    E-print Network

    Pillow, Jonathan

    TEXAS FEEDER SCHOOLS SUPPLEMENT TO SB 175 REPORT FOR 2013 HS Code High School Name HS City 2011 TO SB 175 REPORT FOR 2013 HS Code High School Name HS City 2011 Admitted 2011 Enrolled 2012 Admitted Austin 1 1 2440069 Liberal Arts & Science Acad Hs Austin 43 19 40 17 46 24 2440294 L C Anderson High

  4. 46 CFR 117.175 - Survival craft equipment.

    Code of Federal Regulations, 2012 CFR

    2012-10-01

    ... 46 Shipping 4 2012-10-01 2012-10-01 false Survival craft equipment. 117.175 Section 117.175 Shipping COAST GUARD, DEPARTMENT OF HOMELAND SECURITY (CONTINUED) SMALL PASSENGER VESSELS CARRYING MORE THAN 150 PASSENGERS OR WITH OVERNIGHT ACCOMMODATIONS FOR MORE THAN 49 PASSENGERS LIFESAVING EQUIPMENT AND ARRANGEMENTS Survival Craft Arrangements...

  5. 50 CFR 216.175 - Requirements for monitoring and reporting.

    Code of Federal Regulations, 2012 CFR

    2012-10-01

    ... 50 Wildlife and Fisheries 10 2012-10-01 2012-10-01 false Requirements for monitoring and reporting. 216.175 Section 216.175 Wildlife and Fisheries NATIONAL MARINE FISHERIES SERVICE, NATIONAL OCEANIC AND ATMOSPHERIC ADMINISTRATION, DEPARTMENT OF COMMERCE MARINE MAMMALS REGULATIONS GOVERNING THE TAKING AND IMPORTING OF MARINE MAMMALS Taking...

  6. 13 CFR 120.175 - Coastal barrier islands.

    Code of Federal Regulations, 2012 CFR

    2012-01-01

    ... 13 Business Credit and Assistance 1 2012-01-01 2012-01-01 false Coastal barrier islands. 120.175... Applying to All Business Loans Requirements Imposed Under Other Laws and Orders § 120.175 Coastal barrier islands. SBA and Intermediaries may not make or guarantee any loan within the Coastal Barrier...

  7. Bis(pentamethylcyclopentadienyl) ytterbium: Electron-transfer reactions with organotransition metal complexes

    SciTech Connect

    Matsunaga, P.T.

    1991-11-01

    The divalent lanthanide complex, (Me{sub 5}C{sub 5}){sub 2}Yb, reacts with methylcopper to produce the base-free, ytterbium-methyl complex, (Me{sub 5}C{sub 5}){sub 2}YbMe. This product forms a asymmetric, methyl-bridged dimer in the solid state. The bulky alkyl complex, (Me{sub 5}C{sub 5}){sub 2}YbCH(SiMe{sub 3}){sub 2}, displays similar chemistry to (Me{sub 5}C{sub 5}){sub 2}YbMe, but at a reduced reaction rate due to the limited accessibility of the metal in (Me{sub 5}C{sub 5}){sub 2}YbCH(SiMe{sub 3}){sub 2}. Copper and silver halide salts react with (Me{sub 5}C{sub 5}){sub 2}V to produce the trivalent halide derivatives, (Me{sub 5}C{sub 5}){sub 2}VX (X + F, Cl, Br, I). The chloride complex, (Me{sub 5}C{sub 5}){sub 2}VCl, reacts with lithium reagents to form the phenyl and borohydride species. Nitrous oxide transfers an oxygen atom to (Me{sub 5}C{sub 5}){sub 2}V producing the vanadium-oxo complex, (Me{sub 5}Ce{sub 5}){sub 2}VO. The trivalent titanium species, (Me{sub 5}C{sub 5}){sub 2}TiX (X = Cl, Br, Me, BH{sub 4}), form bimetallic coordination complexes with (Me{sub 5}C{sub 5}){sub 2}Yb. The magnetic behavior of the products indicates that electron transfer has not occurred. The solid state structures of the chloride and bromide complexes show unusual bend angles for the halide bridges between ytterbium and titanium. A model based on frontier orbital theory has been proposed to account for the bending behavior in these species. The bimetallic methyl complex contains a linear methyl bridge between ytterbium and titanium.

  8. Biochemical Analysis of the Plasmodium falciparum Erythrocyte-binding Antigen-175 (EBA175)-Glycophorin-A Interaction

    PubMed Central

    Wanaguru, Madushi; Crosnier, Cécile; Johnson, Steven; Rayner, Julian C.; Wright, Gavin J.

    2013-01-01

    PfEBA175 has an important role in the invasion of human erythrocytes by Plasmodium falciparum and is therefore considered a high priority blood-stage malaria vaccine candidate. PfEBA175 mediates adhesion to erythrocytes through binding of the Duffy-binding-like (DBL) domains in its extracellular domain to Neu5Ac?2–3Gal displayed on the O-linked glycans of glycophorin-A (GYPA). Because of the difficulties in expressing active full-length (FL) P. falciparum proteins in a recombinant form, previous analyses of the PfEBA175-GYPA interaction have largely focused on the DBL domains alone, and therefore they have not been performed in the context of the native protein sequence. Here, we express the entire ectodomain of PfEBA175 (PfEBA175 FL) in soluble form, allowing us to compare the biochemical and immunological properties with a fragment containing only the tandem DBL domains (“region II,” PfEBA175 RII). Recombinant PfEBA175 FL bound human erythrocytes in a trypsin and neuraminidase-sensitive manner and recognized Neu5Ac?2–3Gal-containing glycans, confirming its biochemical activity. A quantitative binding analysis showed that PfEBA175 FL interacted with native GYPA with a KD ?0.26 ?m and is capable of self-association. By comparison, the RII fragment alone bound GYPA with a lower affinity demonstrating that regions outside of the DBL domains are important for interactions with GYPA; antibodies directed to these other regions also contributed to the inhibition of parasite invasion. These data demonstrate the importance of PfEBA175 regions other than the DBL domains in the interaction with GYPA and merit their inclusion in an EBA175-based vaccine. PMID:24043627

  9. 49 CFR 572.175 - Upper and lower torso assemblies and torso flexion test procedure.

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ...Upper and lower torso assemblies and torso flexion test procedure. 572.175 Section 572.175...TRANSPORTATION (CONTINUED) ANTHROPOMORPHIC TEST DEVICES Hybrid III 10-Year-Old Child Test Dummy (HIII-10C) § 572.175...

  10. Heat-induced darkening and spectral broadening in photodarkened ytterbium-doped fiber under thermal cycling.

    PubMed

    Söderlund, Mikko J; Montiel i Ponsoda, Joan J; Koplow, Jeffrey P; Honkanen, Seppo

    2009-06-01

    We study thermal bleaching of photodarkening-induced loss in a 20-microm core diameter, large-mode-area ytterbium-doped silica fiber. Pristine and photodarkened samples are subjected to thermal cycling pulses. Recovery of the photodarkened fiber absorption coefficient initiates at approximately 350 degrees C and complete recovery is reached at approximately 625 degrees C. However, prior to recovery, the photodarkened fiber exhibits further heat-induced increase of absorption loss. This increase of loss is attributed to both a permanent increase of loss-inducing color centers and a temperature-dependent broadening of the absorption spectrum. Post-irradiation heat-induced formation of color centers suggests the presence of an intermediate energy state in the near-infrared photochemical mechanism for photodarkening. PMID:19506644

  11. Simultaneous effects of photo- and radio- darkening in ytterbium-doped aluminosilicate fibers

    SciTech Connect

    Duchez, Jean-Bernard Mady, Franck Mebrouk, Yasmine Benabdesselam, Mourad

    2014-10-21

    We present original characterizations of photo-radio-darkening in ytterbium-doped silica optical fibers submitted to the simultaneous action of the pump and of an ionizing radiation. We present the interplay between both radiations, showing e.g. that the pump is able to darken or bleach the fiber depending on the ionizing dose. The photo-resistance of the fiber is shown to play a crucial role on its radio-resistance, and that photo-resistant fibers should be also radio-resistant in low dose rate conditions. All the results are thoroughly explained by a physical model presented in a separate article by Mady et al. (this conference proceeding)

  12. Bis(pentamethylcyclopentadienyl)ytterbium: An investigation of weak interactions in solution using multinuclear NMR spectroscopy

    SciTech Connect

    Schwartz, D.J.

    1995-07-01

    NMR spectroscopy is ideal for studying weak interactions (formation enthalpy {le}20 kcal/mol) in solution. The metallocene bis(pentamethylcyclopentadienyl)ytterbium, Cp*{sub 2}Yb, is ideal for this purpose. cis-P{sub 2}PtH{sub 2}complexes (P = phosphine) were used to produce slow-exchange Cp*{sub 2}YbL adducts for NMR study. Reversible formation of (P{sub 2}PtH){sub 2} complexes from cis-P{sub 2}PtH{sub 2} complexes were also studied, followed by interactions of Cp*{sub 2}Yb with phosphines, R{sub 3}PX complexes. A NMR study was done on the interactions of Cp*{sub 2}Yb with H{sub 2}, CH{sub 4}, Xe, CO, silanes, stannanes, C{sub 6}H{sub 6}, and toluene.

  13. A compact ultranarrow high-power laser system for experiments with 578 nm ytterbium clock transition.

    PubMed

    Cappellini, G; Lombardi, P; Mancini, M; Pagano, G; Pizzocaro, M; Fallani, L; Catani, J

    2015-07-01

    In this paper, we present the realization of a compact, high-power laser system able to excite the ytterbium clock transition at 578 nm. Starting from an external-cavity laser based on a quantum dot chip at 1156 nm with an intra-cavity electro-optic modulator, we were able to obtain up to 60 mW of visible light at 578 nm via frequency doubling. The laser is locked with a 500 kHz bandwidth to an ultra-low-expansion glass cavity stabilized at its zero coefficient of thermal expansion temperature through an original thermal insulation and correction system. This laser allowed the observation of the clock transition in fermionic (173)Yb with a <50 Hz linewidth over 5 min, limited only by a residual frequency drift of some 0.1 Hz/s. PMID:26233360

  14. Injection locking of a high power ultraviolet laser diode for laser cooling of ytterbium atoms.

    PubMed

    Hosoya, Toshiyuki; Miranda, Martin; Inoue, Ryotaro; Kozuma, Mikio

    2015-07-01

    We developed a high-power laser system at a wavelength of 399?nm for laser cooling of ytterbium atoms with ultraviolet laser diodes. The system is composed of an external cavity laser diode providing frequency stabilized output at a power of 40?mW and another laser diode for amplifying the laser power up to 220?mW by injection locking. The systematic method for optimization of our injection locking can also be applied to high power light sources at any other wavelengths. Our system does not depend on complex nonlinear frequency-doubling and can be made compact, which will be useful for providing light sources for laser cooling experiments including transportable optical lattice clocks. PMID:26233359

  15. Mode-Locked Thulium Ytterbium Co-Doped Fiber Laser with Graphene Oxide Paper Saturable Absorber

    NASA Astrophysics Data System (ADS)

    M. Azooz, S.; W. Harun, S.; H., Ahmad; Halder, A.; C. Paul, M.; Pal, M.; K. Bhadra, S.

    2015-01-01

    A mode-locked thulium ytterbium co-doped fiber laser (TYDFL) is proposed and demonstrated by using a commercial graphene oxide (GO) paper as saturable absorber (SA). The GO paper is sandwiched between two fiber ferrules and incorporates a ring laser cavity to generate soliton pulse train operating at 1942.0nm at a threshold multimode pump power as low as 1.8 W. The mode-locked TYDFL has a repetition rate of 22.32 MHz and the calculated pulse width of 1.1 ns. Even though the SA has a low damage threshold, the easy fabrication of GO paper should promote its potential application in ultrafast photonics.

  16. Gadolinium ytterbium trifluoride, Gd0.81Yb0.19F3.

    PubMed

    Vasyliev, Valentyn; Villora, Encarnacion G; Nakamura, Masaru; Sato, Akira; Shimamura, Kiyoshi

    2011-02-01

    A new gadolinium ytterbium trifluoride has been grown for the first time by the Czochralski technique. Although GdF(3) and YbF(3) both present a high-temperature phase transition, the mixed compound Gd(0.81)Yb(0.19)F(3) maintains its crystallographic structure upon cooling to room temperature. Taking into account that both Gd(3+) and Yb(3+) ions are distributed randomly on a single site (Wyckoff position 4c), this is attributed to a mean cationic radius coincident with that of the Tb(3+) ion, so that the stability of the crystal structure resembles that of TbF(3). The grown crystal melts noncongruently at ?1413?K, it is transparent and colourless, and it has a high density. PMID:21285491

  17. Diode-pumped 1028 nm Ytterbium-doped fiber laser with near 90% slope efficiency

    NASA Astrophysics Data System (ADS)

    Harun, S. W.; Paul, M. C.; Moghaddam, M. R. A.; Das, S.; Sen, R.; Dhar, A.; Pal, M.; Bhadra, S. K.; Ahmad, H.

    2010-03-01

    Highly efficient laser action from an Ytterbium-doped fiber (YDF) is demonstrated using a fiber Bragg grating (FBG) in conjunction with a 4% Fresnel reflection at room temperature. The YDF used is drawn from Yb2O3-doped preform, fabricated through deposition of porous layer of composition SiO2-GeO2 by the MCVD process in conjunction with a solution doping technique. The fabricated YDF has a core composition of 0.2 wt % of Yb2O3, 1.8 wt % of Al2O3 and 23 wt % of GeO2 with a pump absorption of 9.0 dB/m. The fiber laser operates at wavelength of 1028 nm with a slope efficiency of 88% with respect to the launched 976 nm pump power using the YDF length of 7 m.

  18. Single-Mode ytterbium-doped Large-Mode-Area photonic bandgap rod fiber amplifier.

    PubMed

    Alkeskjold, Thomas Tanggaard; Laurila, Marko; Scolari, Lara; Broeng, Jes

    2011-04-11

    Enabling Single-Mode (SM) operation in Large-Mode-Area (LMA) fiber amplifiers and lasers is critical, since a SM output ensures high beam quality and excellent pointing stability. In this paper, we demonstrate and test a new design approach for achieving SM LMA rod fibers by using a photonic bandgap structure. The structure allows resonant coupling of higher-order modes from the core and acts as a spatially Distributed Mode Filter (DMF). With this approach, we demonstrate passive SM performance in an only ~50 cm long and straight ytterbium-doped rod fiber. The amplifier has a mode field diameter of ~59 µm at 1064 nm and exhibits a pump absorption of 27 dB/m at 976 nm. PMID:21503050

  19. Injection locking of a high power ultraviolet laser diode for laser cooling of ytterbium atoms

    NASA Astrophysics Data System (ADS)

    Hosoya, Toshiyuki; Miranda, Martin; Inoue, Ryotaro; Kozuma, Mikio

    2015-07-01

    We developed a high-power laser system at a wavelength of 399 nm for laser cooling of ytterbium atoms with ultraviolet laser diodes. The system is composed of an external cavity laser diode providing frequency stabilized output at a power of 40 mW and another laser diode for amplifying the laser power up to 220 mW by injection locking. The systematic method for optimization of our injection locking can also be applied to high power light sources at any other wavelengths. Our system does not depend on complex nonlinear frequency-doubling and can be made compact, which will be useful for providing light sources for laser cooling experiments including transportable optical lattice clocks.

  20. 40 CFR 68.175 - Prevention program/Program 3.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ...ACCIDENT PREVENTION PROVISIONS Risk Management Plan § 68.175 Prevention...recent change that triggered management of change procedures and the...recent review or revision of management of change procedures....

  1. 175. STORAGE ROOM, SOUTH WALL OF STORAGE ROOM, ADDED WITH ...

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

    175. STORAGE ROOM, SOUTH WALL OF STORAGE ROOM, ADDED WITH ELEVATOR ADDITION OF 1905. WALL IS EXTERIOR OF ORIGINAL WAGON WORKS OF 1883. - Gruber Wagon Works, Pennsylvania Route 183 & State Hill Road at Red Bridge Park, Bernville, Berks County, PA

  2. 7 CFR 28.175 - Administrative and general.

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ...COMMODITY STANDARDS AND STANDARD CONTAINER REGULATIONS COTTON CLASSING, TESTING, AND STANDARDS Classification for Foreign Growth Cotton § 28.175 Administrative and general. Insofar as applicable, and not inconsistent with this subpart,...

  3. 7 CFR 28.175 - Administrative and general.

    Code of Federal Regulations, 2011 CFR

    2011-01-01

    ...COMMODITY STANDARDS AND STANDARD CONTAINER REGULATIONS COTTON CLASSING, TESTING, AND STANDARDS Classification for Foreign Growth Cotton § 28.175 Administrative and general. Insofar as applicable, and not inconsistent with this subpart,...

  4. Interior view of 175 ton hoist house looking at the ...

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

    Interior view of 175 ton hoist house looking at the exterior casing for the wire rope spools. - Marshall Space Flight Center, Saturn V Dynamic Test Facility, East Test Area, Huntsville, Madison County, AL

  5. View of 175 ton hoisthouse from northeast. Hoist operator's cab ...

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

    View of 175 ton hoist-house from northeast. Hoist operator's cab is in foreground center. - Marshall Space Flight Center, Saturn V Dynamic Test Facility, East Test Area, Huntsville, Madison County, AL

  6. 29 CFR 1952.175 - Changes to approved plans.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ...FOR ENFORCEMENT OF STATE STANDARDS California § 1952.175 Changes to approved...with part 1953 of this chapter, the California carcinogen program implemented on... (b) On January 1, 1978, the California Department of Industrial...

  7. 29 CFR 1952.175 - Changes to approved plans.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ...FOR ENFORCEMENT OF STATE STANDARDS California § 1952.175 Changes to approved...with part 1953 of this chapter, the California carcinogen program implemented on... (b) On January 1, 1978, the California Department of Industrial...

  8. 29 CFR 1952.175 - Changes to approved plans.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ...FOR ENFORCEMENT OF STATE STANDARDS California § 1952.175 Changes to approved...with part 1953 of this chapter, the California carcinogen program implemented on... (b) On January 1, 1978, the California Department of Industrial...

  9. 29 CFR 1952.175 - Changes to approved plans.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ...FOR ENFORCEMENT OF STATE STANDARDS California § 1952.175 Changes to approved...with part 1953 of this chapter, the California carcinogen program implemented on... (b) On January 1, 1978, the California Department of Industrial...

  10. 29 CFR 1952.175 - Changes to approved plans.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ...FOR ENFORCEMENT OF STATE STANDARDS California § 1952.175 Changes to approved...with part 1953 of this chapter, the California carcinogen program implemented on... (b) On January 1, 1978, the California Department of Industrial...

  11. 40 CFR 60.175 - Monitoring of operations.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ...PERFORMANCE FOR NEW STATIONARY SOURCES Standards of Performance for Primary Zinc Smelters § 60.175 Monitoring of operations. (a) The owner or operator of any primary zinc smelter subject to the provisions of this subpart shall install and...

  12. 40 CFR 60.175 - Monitoring of operations.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ...PERFORMANCE FOR NEW STATIONARY SOURCES Standards of Performance for Primary Zinc Smelters § 60.175 Monitoring of operations. (a) The owner or operator of any primary zinc smelter subject to the provisions of this subpart shall install and...

  13. 40 CFR 60.175 - Monitoring of operations.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ...PERFORMANCE FOR NEW STATIONARY SOURCES Standards of Performance for Primary Zinc Smelters § 60.175 Monitoring of operations. (a) The owner or operator of any primary zinc smelter subject to the provisions of this subpart shall install and...

  14. 40 CFR 152.175 - Pesticides classified for restricted use.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 23 2010-07-01 2010-07-01 false Pesticides classified for restricted use. 152.175 Section...ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) PESTICIDE PROGRAMS PESTICIDE REGISTRATION AND CLASSIFICATION PROCEDURES...

  15. 40 CFR 60.175 - Monitoring of operations.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ...PERFORMANCE FOR NEW STATIONARY SOURCES Standards of Performance for Primary Zinc Smelters § 60.175 Monitoring of operations. (a) The owner or operator of any primary zinc smelter subject to the provisions of this subpart shall install and...

  16. 46 CFR 170.175 - Stability test: General.

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ...Lightweight Displacement and Centers of Gravity § 170.175 Stability test: General...its vertical and longitudinal centers of gravity and its lightweight displacement. ...position of the vessel's vertical center of gravity is not necessary to ensure that the...

  17. 46 CFR 170.175 - Stability test: General.

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ...Lightweight Displacement and Centers of Gravity § 170.175 Stability test: General...its vertical and longitudinal centers of gravity and its lightweight displacement. ...position of the vessel's vertical center of gravity is not necessary to ensure that the...

  18. 46 CFR 170.175 - Stability test: General.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ...Lightweight Displacement and Centers of Gravity § 170.175 Stability test: General...its vertical and longitudinal centers of gravity and its lightweight displacement...position of the vessel's vertical center of gravity is not necessary to ensure that the...

  19. 46 CFR 170.175 - Stability test: General.

    Code of Federal Regulations, 2012 CFR

    2012-10-01

    ...Lightweight Displacement and Centers of Gravity § 170.175 Stability test: General...its vertical and longitudinal centers of gravity and its lightweight displacement. ...position of the vessel's vertical center of gravity is not necessary to ensure that the...

  20. 46 CFR 170.175 - Stability test: General.

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ...Lightweight Displacement and Centers of Gravity § 170.175 Stability test: General...its vertical and longitudinal centers of gravity and its lightweight displacement. ...position of the vessel's vertical center of gravity is not necessary to ensure that the...

  1. 40 CFR 60.175 - Monitoring of operations.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... (CONTINUED) STANDARDS OF PERFORMANCE FOR NEW STATIONARY SOURCES Standards of Performance for Primary Zinc Smelters § 60.175 Monitoring of operations. (a) The owner or operator of any primary zinc smelter...

  2. 40 CFR 60.175 - Monitoring of operations.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... (CONTINUED) STANDARDS OF PERFORMANCE FOR NEW STATIONARY SOURCES Standards of Performance for Primary Zinc Smelters § 60.175 Monitoring of operations. (a) The owner or operator of any primary zinc smelter...

  3. 40 CFR 60.175 - Monitoring of operations.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... (CONTINUED) STANDARDS OF PERFORMANCE FOR NEW STATIONARY SOURCES Standards of Performance for Primary Zinc Smelters § 60.175 Monitoring of operations. (a) The owner or operator of any primary zinc smelter...

  4. 40 CFR 180.175 - Maleic hydrazide; tolerances for residues.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ...Tolerances § 180.175 Maleic hydrazide; tolerances for residues. (a) General. (1) Tolerances for residues of the herbicide and plant regulator maleic hydrazide (1,2-dihydro-3,6-pyridazinedione) are established in or on the...

  5. 40 CFR 180.175 - Maleic hydrazide; tolerances for residues.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ...Tolerances § 180.175 Maleic hydrazide; tolerances for residues. (a) General. (1) Tolerances for residues of the herbicide and plant regulator maleic hydrazide (1,2-dihydro-3,6-pyridazinedione) are established in or on the...

  6. 40 CFR 180.175 - Maleic hydrazide; tolerances for residues.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ...Tolerances § 180.175 Maleic hydrazide; tolerances for residues. (a) General. (1) Tolerances for residues of the herbicide and plant regulator maleic hydrazide (1,2-dihydro-3,6-pyridazinedione) are established in or on the...

  7. Facility No. 175, interior overview from secondfloor corridor on northwest ...

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

    Facility No. 175, interior overview from second-floor corridor on northwest side - U.S. Naval Base, Pearl Harbor, Landplane Hangar Type, Wasp Boulevard and Gambier Bay Street, Pearl City, Honolulu County, HI

  8. Facility No. 175, elevation of southeast side from the airfield, ...

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

    Facility No. 175, elevation of southeast side from the airfield, corner of Facility No. 176 is to the left - U.S. Naval Base, Pearl Harbor, Landplane Hangar Type, Wasp Boulevard and Gambier Bay Street, Pearl City, Honolulu County, HI

  9. Facility No. 175, interior detail showing rolling doors, trusses, and ...

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

    Facility No. 175, interior detail showing rolling doors, trusses, and angled monitor roof - U.S. Naval Base, Pearl Harbor, Landplane Hangar Type, Wasp Boulevard and Gambier Bay Street, Pearl City, Honolulu County, HI

  10. Facility No. 175, exterior oblique view of northeast and northwest ...

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

    Facility No. 175, exterior oblique view of northeast and northwest sides, corner of Facility No. 176 is in background - U.S. Naval Base, Pearl Harbor, Landplane Hangar Type, Wasp Boulevard and Gambier Bay Street, Pearl City, Honolulu County, HI

  11. Facility No. 175, interior of office space on second floor ...

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

    Facility No. 175, interior of office space on second floor of northwest side - U.S. Naval Base, Pearl Harbor, Landplane Hangar Type, Wasp Boulevard and Gambier Bay Street, Pearl City, Honolulu County, HI

  12. Creation of quantum-degenerate gases of ytterbium in a compact 2D-/3D-magneto-optical trap setup

    SciTech Connect

    Doerscher, Soeren; Thobe, Alexander; Hundt, Bastian; Kochanke, Andre; Le Targat, Rodolphe; Windpassinger, Patrick; Becker, Christoph; Sengstock, Klaus

    2013-04-15

    We report on the first experimental setup based on a 2D-/3D-magneto-optical trap (MOT) scheme to create both Bose-Einstein condensates and degenerate Fermi gases of several ytterbium isotopes. Our setup does not require a Zeeman slower and offers the flexibility to simultaneously produce ultracold samples of other atomic species. Furthermore, the extraordinary optical access favors future experiments in optical lattices. A 2D-MOT on the strong {sup 1}S{sub 0}{yields}{sup 1}P{sub 1} transition captures ytterbium directly from a dispenser of atoms and loads a 3D-MOT on the narrow {sup 1}S{sub 0}{yields}{sup 3}P{sub 1} intercombination transition. Subsequently, atoms are transferred to a crossed optical dipole trap and cooled evaporatively to quantum degeneracy.

  13. Creation of Quantum-Degenerate Gases of Ytterbium in a Compact 2D-/3D-MOT Setup

    E-print Network

    Sören Dörscher; Alexander Thobe; Bastian Hundt; André Kochanke; Rodolphe Le Targat; Patrick Windpassinger; Christoph Becker; Klaus Sengstock

    2013-03-05

    We report on the first experimental setup based on a 2D-/3D-MOT scheme to create both Bose-Einstein condensates and degenerate Fermi gases of several ytterbium isotopes. Our setup does not require a Zeeman slower and offers the flexibility to simultaneously produce ultracold samples of other atomic species. Furthermore, the extraordinary optical access favors future experiments in optical lattices. A 2D-MOT on the strong 1S0-1P1 transition captures ytterbium directly from a dispenser of atoms and loads a 3D-MOT on the narrow 1S0-3P1 intercombination transition. Subsequently, atoms are transferred to a crossed optical dipole trap and cooled evaporatively to quantum degeneracy.

  14. Charge-transfer state excitation as the main mechanism of the photodarkening process in ytterbium-doped aluminosilicate fibres

    SciTech Connect

    Bobkov, K K; Rybaltovsky, A A; Vel'miskin, V V; Likhachev, M E; Bubnov, M M; Dianov, E M; Umnikov, A A; Gur'yanov, A N; Vechkanov, N N; Shestakova, I A

    2014-12-31

    We have studied photodarkening in ytterbium-doped fibre preforms with an aluminosilicate glass core. Analysis of their absorption and luminescence spectra indicates the formation of stable Yb{sup 2+} ions in the glass network under IR laser pumping at a wavelength ? = 915 nm and under UV irradiation with an excimer laser (? = 193 nm). We have performed comparative studies of the luminescence spectra of the preforms and crystals under excitation at a wavelength of 193 nm. The mechanism behind the formation of Yb{sup 2+} ions and aluminium – oxygen hole centres (Al-OHCs), common to ytterbium-doped YAG crystals and aluminosilicate glass, has been identified: photoinduced Yb{sup 3+} charge-transfer state excitation. (optical fibres)

  15. Ytterbium-doped fibre laser tunable in the range 1017 - 1040 nm with second-harmonic generation

    SciTech Connect

    Dontsova, E I; Kablukov, S I; Babin, Sergei A

    2013-05-31

    A cladding-pumped ytterbium-doped fibre laser has been tuned to shorter emission wavelengths (from 1040 to 1017 nm). The laser output power obtained has been compared to calculation results. We have studied frequency doubling of the laser in a KTiOPO{sub 4} (KTP) crystal with type II phase matching in the XY plane and demonstrated wavelength tuning in the range 510 - 520 nm. (lasers)

  16. Investigation of the vapour-plasma plume in the welding of titanium by high-power ytterbium fibre laser radiation

    NASA Astrophysics Data System (ADS)

    Bykovskiy, D. P.; Petrovskii, V. N.; Uspenskiy, S. A.

    2015-03-01

    The vapour-plasma plume produced in the welding of 6-mm thick VT-23 titanium alloy plates by ytterbium fibre laser radiation of up to 10 kW power is studied in the protective Ar gas medium. High-speed video filming of the vapour-plasma plume is used to visualise the processes occurring during laser welding. The coefficient of inverse bremsstrahlung by the welding plasma plume is calculated from the data of the spectrometric study.

  17. Spectroscopy of the forbidden 1S0 -->3P0 transition on ultra-cold ytterbium atoms

    NASA Astrophysics Data System (ADS)

    Dareau, Alexandre; Scholl, Matthias; Beaufils, Quentin; Döring, Daniel; Beugnon, Jérôme; Gerbier, Fabrice

    2015-05-01

    Cold atoms in optical lattices are often considered a rich playground for emulating condensed matter systems, since they make it possible to engineer many-body Hamiltonians with tunable parameters. However, one missing feature is the ability to emulate orbital magnetism. Recent proposals for simulating orbital magnetism with neutral atoms rely on a state-dependent optical lattice with laser-driven hopping. Ytterbium, with its long lived metastable state (3P0), is a well-suited candidate for the implementation of such schemes. Addressing the forbidden transition between ytterbium ground (1S0) and meta-stable (3P0) states is experimentally challenging, and requires the use of a laser with stability close to the standards of atomic clocks. I will report on the building of a ultra-narrow laser locked on a high-finesse low-expansion cavity. I will then show how the absolute frequency of the cavity modes can be calibrated by performing high-resolution spectroscopy on molecular iodine, allowing us perform Doppler spectroscopy on the 1S0 -->3P0 transition of an ytterbium BEC.

  18. An early investigation of ytterbium nanocolloids for selective and quantitative "multicolor" spectral CT imaging.

    PubMed

    Pan, Dipanjan; Schirra, Carsten O; Senpan, Angana; Schmieder, Anne H; Stacy, Allen J; Roessl, Ewald; Thran, Axel; Wickline, Samuel A; Proska, Roland; Lanza, Gregory M

    2012-04-24

    We report a novel molecular imaging agent based on ytterbium designed for use with spectral "multicolor" computed tomography (CT). Spectral CT or multicolored CT provides all of the benefits of traditional CT, such as rapid tomographic X-ray imaging, but in addition, it simultaneously discriminates metal-rich contrast agents based on the element's unique X-ray K-edge energy signature. Our synthetic approach involved the use of organically soluble Yb(III) complex to produce nanocolloids of Yb of noncrystalline nature incorporating a high density of Yb (>500K/nanoparticle) into a stable metal particle. The resultant particles are constrained to vasculature (?200 nm) and are highly selective for binding fibrin in the ruptured atherosclerotic plaque. Nanoparticles exhibited excellent signal sensitivity, and the spectral CT technique uniquely discriminates the K-edge signal (60 keV) of Yb from calcium (bones). Bioelimination and preliminary biodistribution reflected the overall safety and defined clearance of these particles in a rodent model. PMID:22385324

  19. Laser system for Doppler cooling of ytterbium ion in an optical frequency standard

    SciTech Connect

    Chepurov, S V; Lugovoy, A A; Kuznetsov, S N

    2014-06-30

    A laser system for Doppler cooling of ytterbium ion on the {sup 2}S{sub 1/2} ? {sup 2}P{sub 1/2} transition in a single-ion optical frequency standard is developed. The second harmonic of a semiconductor laser with a wavelength of 739 nm is used for cooling. The laser frequency is doubled in a nonlinear BiBO crystal embedded in a ring resonator, which also serves as a reference for laser frequency stabilisation. Second-harmonic power of ?100 ?W is generated at a wavelength of 369.5 nm. Diode laser radiation is modulated by an electro-optic modulator at 14.75 GHz to generate a sideband exciting the {sup 2}S{sub 1/2} (F = 0) ? {sup 2}P{sub 1/2} (F = 1) hyperfine component of the cooling transition that is not excited by resonant cooling light. The sideband relative intensity of a few percent proved to be sufficient to reduce the ion dwelling time in the {sup 2}S{sub 1/2} (F = 0) state to less than 10{sup -4} s and increase the cooling efficiency. (extreme light fields and their applications)

  20. Gamma-radiation-induced degradation of actively pumped single-mode ytterbium-doped optical fibers

    NASA Astrophysics Data System (ADS)

    Singleton, B.; Petrosky, J.; Pochet, M.; Usechak, N. G.; Francis, S. A.

    2014-03-01

    The integration of optical components into the digital processing units of satellite subsystems has the potential to remove interconnect bottlenecks inherent to the volume, mass, complexity, reliability and crosstalk issues of copper-based interconnects. Assuming on-board high-bandwidth communications will utilize passive optical fibers as a communication channel, this work investigates the impact of gamma irradiation from a Co-60 source on both passive optical fibers and ytterbium-doped single-mode fibers operated as amplifiers for a 1060-nm light source. Standard optical patch cables were evaluated along with active Yb-doped double-clad fibers. Varied exposure times and signal transmission wavelengths were used to investigate the degradation of the fibers exposed to total doses above 100 krad (Si). The effect on the amplified signal gain was studied for the Yb-doped fibers. The increased attenuation in the fibers across a broad wavelength range in response to multiple levels of gamma radiation exposure along with the effect that the increased attenuation has on the actively pumped Yb-doped fiber amplifier performance, is discussed.

  1. Analysis of temperature dependence of photodarkening in ytterbium-doped fibers

    NASA Astrophysics Data System (ADS)

    Montiel I Ponsoda, Joan J.; Ye, Changgeng; Koplow, Jeffrey P.; Söderlund, Mikko J.; Koponen, Joona J.; Honkanen, Seppo

    2011-11-01

    We examine the temperature dependence of photodarkening in ytterbium-doped silica fibers. A sequence of consecutive photodarkening experiments are performed over the same fiber sample, which shows good repeatability with no apparent changes in the glass structure. We find that during infrared irradiation, the level of saturation of the losses can be determined by the fiber core temperature, independent of the previous state of photodarkening losses and fiber temperature, and also at low temperatures where the thermal bleaching is not activated. We observe that variations in the fiber core temperature, induced by pump absorption due to photodarkening, affect the inversion level and photodarkening processes. These effects in turn cause a discrepancy in determining the ion dependence. We highlight the importance of performing the experiments under isothermal conditions and we propose a new approach to control the fiber temperature at room temperature and at elevated temperatures. The approach is based on an isothermal Galinstan bath. The appropriateness of this method is shown by comparing it to different cooling methods, and the results are supported by simulations.

  2. Hydration of gas-phase ytterbium ion complexes studied by experiment and theory

    SciTech Connect

    Rutkowski, Philip X; Michelini, Maria C.; Bray, Travis H.; Russo, Nino; Marcalo, Joaquim; Gibson, John K.

    2011-02-11

    Hydration of ytterbium (III) halide/hydroxide ions produced by electrospray ionization was studied in a quadrupole ion trap mass spectrometer and by density functional theory (DFT). Gas-phase YbX{sub 2}{sup +} and YbX(OH){sup +} (X = OH, Cl, Br, or I) were found to coordinate from one to four water molecules, depending on the ion residence time in the trap. From the time dependence of the hydration steps, relative reaction rates were obtained. It was determined that the second hydration was faster than both the first and third hydrations, and the fourth hydration was the slowest; this ordering reflects a combination of insufficient degrees of freedom for cooling the hot monohydrate ion and decreasing binding energies with increasing hydration number. Hydration energetics and hydrate structures were computed using two approaches of DFT. The relativistic scalar ZORA approach was used with the PBE functional and all-electron TZ2P basis sets; the B3LYP functional was used with the Stuttgart relativistic small-core ANO/ECP basis sets. The parallel experimental and computational results illuminate fundamental aspects of hydration of f-element ion complexes. The experimental observations - kinetics and extent of hydration - are discussed in relationship to the computed structures and energetics of the hydrates. The absence of pentahydrates is in accord with the DFT results, which indicate that the lowest energy structures have the fifth water molecule in the second shell.

  3. Influence of aluminum-phosphorus codoping on optical properties of ytterbium-doped laser fibers

    NASA Astrophysics Data System (ADS)

    Unger, S.; Schwuchow, A.; Jetschke, S.; Reichel, V.; Leich, M.; Scheffel, A.; Kirchhof, J.

    2009-02-01

    Ytterbium-doped high-power fiber lasers with high beam quality are promising devices for a variety of applications. Extreme power load and complicated fiber structures make great demands on material properties and preparation technology. Recently, with the further increase of output power, the problem of photodarkening has been identified as a critical issue for fiber laser devices. Detailed knowledge of optical properties of materials and fibers are needed for the successful development of laser fibers, aimed at increasing efficiency and power. It is well known that the properties of silica based rare earth doped fibers can be influenced and remarkably improved by the incorporation of further dopants. Here, the influence of combined aluminium-phosphorus codoping on the optical properties of Yb doped laser fibers was investigated. Preforms and fibers were prepared by MCVD and solution doping both with phosphorus and aluminium excess. The samples were characterized concerning the radial distribution of refractive index and dopant concentrations and the absorption and emission properties in the UV/VIS/NIR region. The observed spectral effects and active properties (laser efficiency, photodarkening) were correlated with changes in the fiber composition. It could be shown, that the combined doping leads to effects which deviate from a simple additivity and which can be beneficially utilized for the improvement of the laser fiber performance.

  4. Ablation of oxide materials and production of nanopowders by ytterbium fiber laser

    NASA Astrophysics Data System (ADS)

    Osipov, Vladimir V.; Lisenkov, Vasily V.; Platonov, Vladislav V.

    2015-03-01

    In this paper, laser radiation action on Nd3+:Y2O3 targets having the absorption 13-1.7 × 103 cm-1 is studied. During the experiment, we used the ytterbium fiber laser, which can operate both in continuous and pulse mode with the pulse duration time 0.1-1.9 ms. Laser radiation power was 200-700 W, and power density was (0.2-1.2) × 106 W/cm2. We found out the spike behavior of laser plume luminescence, large statistical variability of delay time of laser plume appearance, and spallation of front surface of the target. Aiming to explain these facts, we developed the numeric model of radiation impact on substance with non-uniform absorption coefficient. We found out the optimal laser oblation mode for nanopowder production. At laser power of 700 W, we received Nd3+:Y2O3 nanopowder with productivity up to 27 g/h. Average size of nanoparticles is 13.6 nm, and their phase is monoclinic.

  5. 40 CFR 63.175 - Quality improvement program for valves.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... 40 Protection of Environment 10 2014-07-01 2014-07-01 false Quality improvement program for valves... National Emission Standards for Organic Hazardous Air Pollutants for Equipment Leaks § 63.175 Quality... alternative quality improvement programs specified in paragraphs (d) and (e) of this section. The decision...

  6. 40 CFR 63.175 - Quality improvement program for valves.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... 40 Protection of Environment 9 2011-07-01 2011-07-01 false Quality improvement program for valves... National Emission Standards for Organic Hazardous Air Pollutants for Equipment Leaks § 63.175 Quality... alternative quality improvement programs specified in paragraphs (d) and (e) of this section. The decision...

  7. 40 CFR 63.175 - Quality improvement program for valves.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 40 Protection of Environment 9 2010-07-01 2010-07-01 false Quality improvement program for valves... National Emission Standards for Organic Hazardous Air Pollutants for Equipment Leaks § 63.175 Quality... alternative quality improvement programs specified in paragraphs (d) and (e) of this section. The decision...

  8. 33 CFR 175.130 - Visual distress signals accepted.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... requirements of § 175.110: (1) An electric distress light meeting the standards of 46 CFR 161.013. One is required to meet the night only requirement. (2) An orange flag meeting the standards of 46 CFR 160.072....130—Pyrotechnic Signal Devices Approval number under 46 CFR Device description Meets requirement...

  9. 49 CFR 175.20 - Compliance and training.

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ...175.20 Compliance and training. An air carrier may not transport a hazardous material by aircraft unless each of its hazmat employees involved in that transportation is trained as required by subpart H of part 172 of this subchapter. In addition,...

  10. 49 CFR 175.20 - Compliance and training.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ...175.20 Compliance and training. An air carrier may not transport a hazardous material by aircraft unless each of its hazmat employees involved in that transportation is trained as required by subpart H of part 172 of this subchapter. In addition,...

  11. 49 CFR 175.20 - Compliance and training.

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ...175.20 Compliance and training. An air carrier may not transport a hazardous material by aircraft unless each of its hazmat employees involved in that transportation is trained as required by subpart H of part 172 of this subchapter. In addition,...

  12. 49 CFR 175.20 - Compliance and training.

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ...175.20 Compliance and training. An air carrier may not transport a hazardous material by aircraft unless each of its hazmat employees involved in that transportation is trained as required by subpart H of part 172 of this subchapter. In addition,...

  13. 49 CFR 175.20 - Compliance and training.

    Code of Federal Regulations, 2012 CFR

    2012-10-01

    ...175.20 Compliance and training. An air carrier may not transport a hazardous material by aircraft unless each of its hazmat employees involved in that transportation is trained as required by subpart H of part 172 of this subchapter. In addition,...

  14. 18 CFR 367.1750 - Account 175, Derivative instrument assets.

    Code of Federal Regulations, 2013 CFR

    2013-04-01

    ..., FEDERAL POWER ACT AND NATURAL GAS ACT UNIFORM SYSTEM OF ACCOUNTS FOR CENTRALIZED SERVICE COMPANIES SUBJECT... 18 Conservation of Power and Water Resources 1 2013-04-01 2013-04-01 false Account 175, Derivative instrument assets. 367.1750 Section 367.1750 Conservation of Power and Water Resources FEDERAL...

  15. 18 CFR 367.1750 - Account 175, Derivative instrument assets.

    Code of Federal Regulations, 2014 CFR

    2014-04-01

    ..., FEDERAL POWER ACT AND NATURAL GAS ACT UNIFORM SYSTEM OF ACCOUNTS FOR CENTRALIZED SERVICE COMPANIES SUBJECT... 18 Conservation of Power and Water Resources 1 2014-04-01 2014-04-01 false Account 175, Derivative instrument assets. 367.1750 Section 367.1750 Conservation of Power and Water Resources FEDERAL...

  16. 18 CFR 367.1750 - Account 175, Derivative instrument assets.

    Code of Federal Regulations, 2012 CFR

    2012-04-01

    ..., FEDERAL POWER ACT AND NATURAL GAS ACT UNIFORM SYSTEM OF ACCOUNTS FOR CENTRALIZED SERVICE COMPANIES SUBJECT... 18 Conservation of Power and Water Resources 1 2012-04-01 2012-04-01 false Account 175, Derivative instrument assets. 367.1750 Section 367.1750 Conservation of Power and Water Resources FEDERAL...

  17. 18 CFR 367.1750 - Account 175, Derivative instrument assets.

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ..., FEDERAL POWER ACT AND NATURAL GAS ACT UNIFORM SYSTEM OF ACCOUNTS FOR CENTRALIZED SERVICE COMPANIES SUBJECT... 18 Conservation of Power and Water Resources 1 2011-04-01 2011-04-01 false Account 175, Derivative instrument assets. 367.1750 Section 367.1750 Conservation of Power and Water Resources FEDERAL...

  18. 18 CFR 367.1750 - Account 175, Derivative instrument assets.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ..., FEDERAL POWER ACT AND NATURAL GAS ACT UNIFORM SYSTEM OF ACCOUNTS FOR CENTRALIZED SERVICE COMPANIES SUBJECT... 18 Conservation of Power and Water Resources 1 2010-04-01 2010-04-01 false Account 175, Derivative instrument assets. 367.1750 Section 367.1750 Conservation of Power and Water Resources FEDERAL...

  19. Drawing fractal plants with recursive functions ECS 175 Spring 2012

    E-print Network

    California at Davis, University of

    Drawing fractal plants with recursive functions ECS 175 Spring 2012 These notes describe a version of L-systems, a recursive language used to describe plant structures. L-systems were introduced and Prezemyslaw Prusinkiewicz (know to everyone as Dr. P), The Algorithmic Beauty of Plants. 1 Fractals We can

  20. 40 CFR 152.175 - Pesticides classified for restricted use.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 40 Protection of Environment 23 2010-07-01 2010-07-01 false Pesticides classified for restricted...) PESTICIDE PROGRAMS PESTICIDE REGISTRATION AND CLASSIFICATION PROCEDURES Classification of Pesticides § 152.175 Pesticides classified for restricted use. The following uses of pesticide products containing...

  1. 33 CFR 175.130 - Visual distress signals accepted.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... requirements of § 175.110: (1) An electric distress light meeting the standards of 46 CFR 161.013. One is required to meet the night only requirement. (2) An orange flag meeting the standards of 46 CFR 160.072....130—Pyrotechnic Signal Devices Approval number under 46 CFR Device description Meets requirement...

  2. 7 CFR 97.175 - Fees and charges.

    Code of Federal Regulations, 2011 CFR

    2011-01-01

    ....80. (g) Authentication (each page)—$1.80. (h) Correcting or re-issuance of a certificate—$518.00. (i... replenishment of seed—$41.00. (o) Filing a petition for protest proceeding—$4,118.00. (p) Appeal to Secretary... PLANT VARIETY AND PROTECTION Fees and Charges § 97.175 Fees and charges. The following fees and...

  3. 7 CFR 97.175 - Fees and charges.

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ....80. (g) Authentication (each page)—$1.80. (h) Correcting or re-issuance of a certificate—$518.00. (i... replenishment of seed—$41.00. (o) Filing a petition for protest proceeding—$4,118.00. (p) Appeal to Secretary... PLANT VARIETY AND PROTECTION Fees and Charges § 97.175 Fees and charges. The following fees and...

  4. 33 CFR 175.130 - Visual distress signals accepted.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... requirements of § 175.110: (1) An electric distress light meeting the standards of 46 CFR 161.013. One is required to meet the night only requirement. (2) An orange flag meeting the standards of 46 CFR 160.072....130—Pyrotechnic Signal Devices Approval number under 46 CFR Device description Meets requirement...

  5. 33 CFR 175.130 - Visual distress signals accepted.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... requirements of § 175.110: (1) An electric distress light meeting the standards of 46 CFR 161.013. One is required to meet the night only requirement. (2) An orange flag meeting the standards of 46 CFR 160.072....130—Pyrotechnic Signal Devices Approval number under 46 CFR Device description Meets requirement...

  6. 33 CFR 175.130 - Visual distress signals accepted.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... requirements of § 175.110: (1) An electric distress light meeting the standards of 46 CFR 161.013. One is required to meet the night only requirement. (2) An orange flag meeting the standards of 46 CFR 160.072....130—Pyrotechnic Signal Devices Approval number under 46 CFR Device description Meets requirement...

  7. 14 CFR 135.175 - Airborne weather radar equipment requirements.

    Code of Federal Regulations, 2011 CFR

    2011-01-01

    ... 14 Aeronautics and Space 3 2011-01-01 2011-01-01 false Airborne weather radar equipment... Aircraft and Equipment § 135.175 Airborne weather radar equipment requirements. (a) No person may operate a... radar equipment is installed in the aircraft. (b) No person may begin a flight under IFR or night...

  8. 14 CFR 135.175 - Airborne weather radar equipment requirements.

    Code of Federal Regulations, 2012 CFR

    2012-01-01

    ... 14 Aeronautics and Space 3 2012-01-01 2012-01-01 false Airborne weather radar equipment... Aircraft and Equipment § 135.175 Airborne weather radar equipment requirements. (a) No person may operate a... radar equipment is installed in the aircraft. (b) No person may begin a flight under IFR or night...

  9. 14 CFR 135.175 - Airborne weather radar equipment requirements.

    Code of Federal Regulations, 2013 CFR

    2013-01-01

    ... 14 Aeronautics and Space 3 2013-01-01 2013-01-01 false Airborne weather radar equipment... Aircraft and Equipment § 135.175 Airborne weather radar equipment requirements. (a) No person may operate a... radar equipment is installed in the aircraft. (b) No person may begin a flight under IFR or night...

  10. 14 CFR 135.175 - Airborne weather radar equipment requirements.

    Code of Federal Regulations, 2014 CFR

    2014-01-01

    ... 14 Aeronautics and Space 3 2014-01-01 2014-01-01 false Airborne weather radar equipment... Aircraft and Equipment § 135.175 Airborne weather radar equipment requirements. (a) No person may operate a... radar equipment is installed in the aircraft. (b) No person may begin a flight under IFR or night...

  11. 14 CFR 135.175 - Airborne weather radar equipment requirements.

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ... 14 Aeronautics and Space 3 2010-01-01 2010-01-01 false Airborne weather radar equipment... Aircraft and Equipment § 135.175 Airborne weather radar equipment requirements. (a) No person may operate a... radar equipment is installed in the aircraft. (b) No person may begin a flight under IFR or night...

  12. 17.5 CHARACTERISTICS OF SUPERCELLULAR SATELLITE TORNADOES Roger Edwards

    E-print Network

    17.5 CHARACTERISTICS OF SUPERCELLULAR SATELLITE TORNADOES Roger Edwards 1 Storm Prediction Center tornado) known as a satellite tornado (hereafter, ST). For the purpose of this examination, STs, main tornado (hereafter, MT) and entirely within the MT lifespan; Orbiting the MT in a direction

  13. TEXAS FEEDER SCHOOLS SUPPLEMENT TO SB 175 REPORT FOR 2014

    E-print Network

    Pillow, Jonathan

    TEXAS FEEDER SCHOOLS SUPPLEMENT TO SB 175 REPORT FOR 2014 HS Code High School Name HS City 2012 REPORT FOR 2014 HS Code High School Name HS City 2012 Admitted 2012 Enrolled 2013 Admitted 2013 Enrolled 1 1 1079587 Ace Academy Austin 2 2 2440069 Liberal Arts & Science Acad Hs Austin 40 17 46 24 56 28

  14. 40 CFR 68.175 - Prevention program/Program 3.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... (CONTINUED) CHEMICAL ACCIDENT PREVENTION PROVISIONS Risk Management Plan § 68.175 Prevention program/Program... the most recent change that triggered management of change procedures and the date of the most recent review or revision of management of change procedures. (j) The date of the most recent pre-startup...

  15. 40 CFR 68.175 - Prevention program/Program 3.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... (CONTINUED) CHEMICAL ACCIDENT PREVENTION PROVISIONS Risk Management Plan § 68.175 Prevention program/Program... the most recent change that triggered management of change procedures and the date of the most recent review or revision of management of change procedures. (j) The date of the most recent pre-startup...

  16. 40 CFR 68.175 - Prevention program/Program 3.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... (CONTINUED) CHEMICAL ACCIDENT PREVENTION PROVISIONS Risk Management Plan § 68.175 Prevention program/Program.... (k) The date of the most recent compliance audit and the expected date of completion of any changes resulting from the compliance audit; (l) The date of the most recent incident investigation and the...

  17. 40 CFR 68.175 - Prevention program/Program 3.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... (CONTINUED) CHEMICAL ACCIDENT PREVENTION PROVISIONS Risk Management Plan § 68.175 Prevention program/Program.... (k) The date of the most recent compliance audit and the expected date of completion of any changes resulting from the compliance audit; (l) The date of the most recent incident investigation and the...

  18. 40 CFR 68.175 - Prevention program/Program 3.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... (CONTINUED) CHEMICAL ACCIDENT PREVENTION PROVISIONS Risk Management Plan § 68.175 Prevention program/Program.... (k) The date of the most recent compliance audit and the expected date of completion of any changes resulting from the compliance audit; (l) The date of the most recent incident investigation and the...

  19. 14 CFR 25.175 - Demonstration of static longitudinal stability.

    Code of Federal Regulations, 2013 CFR

    2013-01-01

    ... TRANSPORTATION AIRCRAFT AIRWORTHINESS STANDARDS: TRANSPORT CATEGORY AIRPLANES Flight Stability § 25.175... at which the airplane— (1) Is trimmed, with— (i) Wing flaps retracted; (ii) Landing gear retracted... greater than V FC /M FC, nor speeds that require a stick force of more than 50 pounds), with— (i) The...

  20. 14 CFR 25.175 - Demonstration of static longitudinal stability.

    Code of Federal Regulations, 2012 CFR

    2012-01-01

    ... TRANSPORTATION AIRCRAFT AIRWORTHINESS STANDARDS: TRANSPORT CATEGORY AIRPLANES Flight Stability § 25.175... at which the airplane— (1) Is trimmed, with— (i) Wing flaps retracted; (ii) Landing gear retracted... greater than V FC /M FC, nor speeds that require a stick force of more than 50 pounds), with— (i) The...

  1. 14 CFR 25.175 - Demonstration of static longitudinal stability.

    Code of Federal Regulations, 2011 CFR

    2011-01-01

    ... TRANSPORTATION AIRCRAFT AIRWORTHINESS STANDARDS: TRANSPORT CATEGORY AIRPLANES Flight Stability § 25.175... at which the airplane— (1) Is trimmed, with— (i) Wing flaps retracted; (ii) Landing gear retracted... greater than V FC /M FC, nor speeds that require a stick force of more than 50 pounds), with— (i) The...

  2. 14 CFR 25.175 - Demonstration of static longitudinal stability.

    Code of Federal Regulations, 2014 CFR

    2014-01-01

    ... TRANSPORTATION AIRCRAFT AIRWORTHINESS STANDARDS: TRANSPORT CATEGORY AIRPLANES Flight Stability § 25.175... at which the airplane— (1) Is trimmed, with— (i) Wing flaps retracted; (ii) Landing gear retracted... greater than V FC /M FC, nor speeds that require a stick force of more than 50 pounds), with— (i) The...

  3. Facility No. 175, oblique view of southeast side and southwest ...

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

    Facility No. 175, oblique view of southeast side and southwest doors, corner of Facility No. 176 is on the left - U.S. Naval Base, Pearl Harbor, Landplane Hangar Type, Wasp Boulevard and Gambier Bay Street, Pearl City, Honolulu County, HI

  4. Facility No. 175, oblique view of southwest doors and northwest ...

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

    Facility No. 175, oblique view of southwest doors and northwest side, corner of Facility No. 176 is on the right - U.S. Naval Base, Pearl Harbor, Landplane Hangar Type, Wasp Boulevard and Gambier Bay Street, Pearl City, Honolulu County, HI

  5. Airfield setting of Facility Nos. 175 and 176, taken from ...

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

    Airfield setting of Facility Nos. 175 and 176, taken from north end of Ford Island Runway, with landplane hangars on the right - U.S. Naval Base, Pearl Harbor, Landplane Hangar Type, Wasp Boulevard and Gambier Bay Street, Pearl City, Honolulu County, HI

  6. Pulsed ytterbium-doped fibre laser with a combined modulator based on single-wall carbon nanotubes

    NASA Astrophysics Data System (ADS)

    Khudyakov, D. V.; Borodkin, A. A.; Lobach, A. S.; Vartapetov, S. K.

    2015-09-01

    This paper describes an all-normal-dispersion pulsed ytterbium-doped fibre ring laser mode-locked by a nonlinear combined modulator based on single-wall carbon nanotubes. We have demonstrated 1.7-ps pulse generation at 1.04 ?m with a repetition rate of 35.6 MHz. At the laser output, the pulses were compressed to 180 fs. We have examined an intracavity nonlinear modulator which utilises nonlinear polarisation ellipse rotation in conjunction with a saturable absorber in the form of a polymer-matrix composite film containing single-wall carbon nanotubes.

  7. Thulium(III) and ytterbium(III) in aqueous solution ab initio quantum mechanical charge field molecular dynamics studies

    NASA Astrophysics Data System (ADS)

    Passler, Peter P.; Rode, Bernd M.

    2015-10-01

    Hydration properties of trivalent thulium and ytterbium ions in aqueous solution are investigated via quantum mechanical charge field molecular dynamics (QMCF-MD) simulations. The QMCF-MD formalism is a special type of QM/MM simulation, where the chemically most relevant part of the system - in this case the ion with its first and second hydration shells - is treated by quantum mechanics. The mean ionsbnd O distances and the average coordination numbers of the first hydration shells are compared with experimental EXAFS data. Mean ligand residence times, vibrational frequencies and force constants were evaluated to characterise the dynamics of the systems.

  8. Note: Broadly tunable all-fiber ytterbium laser with 0.05 nm spectral width based on multimode interference filter

    SciTech Connect

    Mukhopadhyay, Pranab K. Gupta, Pradeep K.; Singh, Amarjeet; Sharma, Sunil K.; Bindra, Kushvinder S.; Oak, Shrikant M.

    2014-05-15

    A multimode interference filter with narrow transmission bandwidth and large self-imaging wavelength interval is constructed and implemented in an ytterbium doped fiber laser in all-fiber format for broad wavelength tunability as well as narrow spectral width of the output beam. The peak transmission wavelength of the multimode interference filter was tuned with the help of a standard in-fiber polarization controller. With this simple mechanism more than 30 nm (1038 nm–1070 nm) tuning range is demonstrated. The spectral width of the output beam from the laser was measured to be 0.05 nm.

  9. Spectral diagnostics of a vapor-plasma plume produced during welding titanium with a high-power ytterbium fiber laser

    NASA Astrophysics Data System (ADS)

    Uspenskiy, S. A.; Petrovskiy, V. N.; Bykovskiy, D. P.; Mironov, V. D.; Prokopova, N. M.; Tret'yakov, E. V.

    2015-03-01

    This work is devoted to the research of welding plume during high power ytterbium fiber laser welding of a titanium alloy in the Ar shielding gas environment. High speed video observation of a vapor-plasma plume for visualization of processes occurring at laser welding was carried out. The coefficient of the inverse Bremsstrahlung absorption of laser radiation is calculated for a plasma welding plume by results of spectrometer researches. The conclusion deals with the impact of plasma on a high-power fiber laser radiation.

  10. Ultracold Mixtures of Rubidium and Ytterbium for Open Quantum System Engineering

    NASA Astrophysics Data System (ADS)

    Herold, Creston David

    Exquisite experimental control of quantum systems has led to sharp growth of basic quantum research in recent years. Controlling dissipation has been crucial in producing ultracold, trapped atomic samples. Recent theoretical work has suggested dissipation can be a useful tool for quantum state preparation. Controlling not only how a system interacts with a reservoir, but the ability to engineer the reservoir itself would be a powerful platform for open quantum system research. Toward this end, we have constructed an apparatus to study ultracold mixtures of rubidium (Rb) and ytterbium (Yb). We have developed a Rb-blind optical lattice at 423.018(7) nm, which will enable us to immerse a lattice of Yb atoms (the system) into a Rb BEC (superfluid reservoir). We have produced Bose-Einstein condensates of 170Yb and 174Yb, two of the five bosonic isotopes of Yb, which also has two fermionic isotopes. Flexible optical trapping of Rb and Yb was achieved with a two-color dipole trap of 532 and 1064 nm, and we observed thermalization in ultracold mixtures of Rb and Yb. Using the Rb-blind optical lattice, we measured very small light shifts of 87Rb BECs near the light shift zero-wavelengths adjacent the 6p electronic states, through a coherent series of lattice pulses. The positions of the zero-wavelengths are sensitive to the electric dipole matrix elements between the 5s and 6p states, and we made the first experimental measurement of their strength. By measuring a light shift, we were not sensitive to excited state branching ratios, and we achieved a precision better than 0.3%.

  11. Structure of YAG crystals doped/substituted with erbium and ytterbium.

    PubMed

    Dobrzycki, Lukasz; Bulska, Ewa; Pawlak, Dorota Anna; Frukacz, Zygmunt; Wo?niak, Krzysztof

    2004-11-29

    Two series of yttrium aluminum garnets doped with erbium and ytterbium ions have been studied by single-crystal X-ray diffraction. The single crystals were obtained by the Czochralski method. The concentration of doping ions was established by the plasma emission spectroscopy method. For the Er series, it is equal to 23.4, 46.7, 72.5, and 100%, whereas, for Yb-doped YAGs, it equals 26.5, 48.2, 75.9, and 100%. The results are supplemented by the data obtained for pure YAG. The X-ray data for all samples were collected at two temperatures: 295(2) and 102(2) K. Additionally, for YAGs doped with ca. 50% of doping ions, some more detailed temperature measurements were performed. Pure single crystals of ErAG and YbAG were also studied as a function of diffraction angles. Careful single-crystal measurements utilizing a CCD diffractometer revealed the unit cell parameters, which slightly-but significantly-deviate from cubic symmetry. The average unit cell parameters change linearly with the amount of substituting Er and Yb cations, with two different slopes related to the ionic radii. Both of the dodecahedral distances depend linearly on the concentration of the substituting ions, but the longer dodecahedral distance also changes with temperature contrary to the shorter one. There is no correlation between the octahedral interatomic distance [Al(VI)...O] and the unit cell parameter or temperature; however, weak trends appear for the tetrahedral [Al(IV)...O] distance. Such weak trends are just the secondary consequences of the ion substitution taking place at the dodecahedral site. The dependences between the unit cell parameters and the concentration of doping ions allow us to establish concentrations of particular doping ions in mixed (Er, Yb) doped YAGs just on the basis of the measured unit cell parameters and knowledge of the amount of Y. PMID:15554630

  12. 21 CFR 175.230 - Hot-melt strippable food coatings.

    Code of Federal Regulations, 2014 CFR

    2014-04-01

    ...food coatings. 175.230 Section 175.230 Food and Drugs FOOD AND DRUG ADMINISTRATION, DEPARTMENT OF HEALTH AND HUMAN SERVICES (CONTINUED) INDIRECT FOOD ADDITIVES: ADHESIVES AND COMPONENTS OF COATINGS...

  13. 21 CFR 175.260 - Partial phosphoric acid esters of polyester resins.

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ...false Partial phosphoric acid esters of polyester resins. 175.260 Section 175.260...260 Partial phosphoric acid esters of polyester resins. Partial phosphoric acid esters of polyester resins identified in this section...

  14. 21 CFR 175.260 - Partial phosphoric acid esters of polyester resins.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ...true Partial phosphoric acid esters of polyester resins. 175.260 Section 175.260...260 Partial phosphoric acid esters of polyester resins. Partial phosphoric acid esters of polyester resins identified in this section...

  15. 25 CFR 170.175 - What Indian LTAP-sponsored transportation training and educational opportunities exist?

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    25 Indians 1 2011-04-01 2011-04-01 false What Indian LTAP-sponsored transportation training and educational...opportunities exist? 170.175 Section 170.175 Indians BUREAU OF INDIAN AFFAIRS, DEPARTMENT OF THE...

  16. 25 CFR 170.175 - What Indian LTAP-sponsored transportation training and educational opportunities exist?

    Code of Federal Regulations, 2013 CFR

    2013-04-01

    25 Indians 1 2013-04-01 2013-04-01 false What Indian LTAP-sponsored transportation training and educational...opportunities exist? 170.175 Section 170.175 Indians BUREAU OF INDIAN AFFAIRS, DEPARTMENT OF THE...

  17. 25 CFR 170.175 - What Indian LTAP-sponsored transportation training and educational opportunities exist?

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    25 Indians 1 2010-04-01 2010-04-01 false What Indian LTAP-sponsored transportation training and educational...opportunities exist? 170.175 Section 170.175 Indians BUREAU OF INDIAN AFFAIRS, DEPARTMENT OF THE...

  18. 25 CFR 170.175 - What Indian LTAP-sponsored transportation training and educational opportunities exist?

    Code of Federal Regulations, 2012 CFR

    2012-04-01

    25 Indians 1 2012-04-01 2011-04-01 true What Indian LTAP-sponsored transportation training and educational...opportunities exist? 170.175 Section 170.175 Indians BUREAU OF INDIAN AFFAIRS, DEPARTMENT OF THE...

  19. 21 CFR 175.260 - Partial phosphoric acid esters of polyester resins.

    Code of Federal Regulations, 2014 CFR

    2014-04-01

    ...false Partial phosphoric acid esters of polyester resins. 175.260 Section 175.260...260 Partial phosphoric acid esters of polyester resins. Partial phosphoric acid esters of polyester resins identified in this section...

  20. 21 CFR 175.260 - Partial phosphoric acid esters of polyester resins.

    Code of Federal Regulations, 2013 CFR

    2013-04-01

    ...false Partial phosphoric acid esters of polyester resins. 175.260 Section 175.260...260 Partial phosphoric acid esters of polyester resins. Partial phosphoric acid esters of polyester resins identified in this section...

  1. 21 CFR 175.260 - Partial phosphoric acid esters of polyester resins.

    Code of Federal Regulations, 2012 CFR

    2012-04-01

    ...false Partial phosphoric acid esters of polyester resins. 175.260 Section 175.260...260 Partial phosphoric acid esters of polyester resins. Partial phosphoric acid esters of polyester resins identified in this section...

  2. 21 CFR 175.390 - Zinc-silicon dioxide matrix coatings.

    Code of Federal Regulations, 2013 CFR

    2013-04-01

    ...Zinc-silicon dioxide matrix coatings. 175.390 Section 175.390 Food and Drugs FOOD AND...Zinc-silicon dioxide matrix coatings. Zinc-silicon dioxide matrix coatings may be safely used as the food-contact surface...

  3. 21 CFR 175.390 - Zinc-silicon dioxide matrix coatings.

    Code of Federal Regulations, 2014 CFR

    2014-04-01

    ...Zinc-silicon dioxide matrix coatings. 175.390 Section 175.390 Food and Drugs FOOD AND...Zinc-silicon dioxide matrix coatings. Zinc-silicon dioxide matrix coatings may be safely used as the food-contact surface...

  4. 21 CFR 175.390 - Zinc-silicon dioxide matrix coatings.

    Code of Federal Regulations, 2012 CFR

    2012-04-01

    ...Zinc-silicon dioxide matrix coatings. 175.390 Section 175.390 Food and Drugs FOOD AND...Zinc-silicon dioxide matrix coatings. Zinc-silicon dioxide matrix coatings may be safely used as the food-contact surface...

  5. 21 CFR 175.390 - Zinc-silicon dioxide matrix coatings.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ...Zinc-silicon dioxide matrix coatings. 175.390 Section 175.390 Food and Drugs FOOD AND...Zinc-silicon dioxide matrix coatings. Zinc-silicon dioxide matrix coatings may be safely used as the food-contact surface...

  6. 21 CFR 175.390 - Zinc-silicon dioxide matrix coatings.

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ...Zinc-silicon dioxide matrix coatings. 175.390 Section 175.390 Food and Drugs FOOD AND...Zinc-silicon dioxide matrix coatings. Zinc-silicon dioxide matrix coatings may be safely used as the food-contact surface...

  7. 49 CFR 175.900 - Handling requirements for carbon dioxide, solid (dry ice).

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ...2011-10-01 false Handling requirements for carbon dioxide, solid (dry ice). 175.900 Section... § 175.900 Handling requirements for carbon dioxide, solid (dry ice). Carbon dioxide, solid (dry ice) when...

  8. 49 CFR 175.900 - Handling requirements for carbon dioxide, solid (dry ice).

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ...2014-10-01 false Handling requirements for carbon dioxide, solid (dry ice). 175.900 Section... § 175.900 Handling requirements for carbon dioxide, solid (dry ice). Carbon dioxide, solid (dry ice) when...

  9. 49 CFR 175.900 - Handling requirements for carbon dioxide, solid (dry ice).

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ...2010-10-01 false Handling requirements for carbon dioxide, solid (dry ice). 175.900 Section... § 175.900 Handling requirements for carbon dioxide, solid (dry ice). Carbon dioxide, solid (dry ice) when...

  10. 49 CFR 175.900 - Handling requirements for carbon dioxide, solid (dry ice).

    Code of Federal Regulations, 2012 CFR

    2012-10-01

    ...2012-10-01 false Handling requirements for carbon dioxide, solid (dry ice). 175.900 Section... § 175.900 Handling requirements for carbon dioxide, solid (dry ice). Carbon dioxide, solid (dry ice) when...

  11. 49 CFR 175.900 - Handling requirements for carbon dioxide, solid (dry ice).

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ...2013-10-01 false Handling requirements for carbon dioxide, solid (dry ice). 175.900 Section... § 175.900 Handling requirements for carbon dioxide, solid (dry ice). Carbon dioxide, solid (dry ice) when...

  12. 49 CFR 175.501 - Special requirements for oxidizers and compressed oxygen.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ...Special requirements for oxidizers and compressed oxygen. 175.501 Section 175.501 Transportation...Special requirements for oxidizers and compressed oxygen. (a) Compressed oxygen, when properly labeled Oxidizer or Oxygen,...

  13. 49 CFR 175.501 - Special requirements for oxidizers and compressed oxygen.

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ...Special requirements for oxidizers and compressed oxygen. 175.501 Section 175.501 Transportation...Special requirements for oxidizers and compressed oxygen. (a) Compressed oxygen, when properly labeled Oxidizer or Oxygen,...

  14. 49 CFR 175.501 - Special requirements for oxidizers and compressed oxygen.

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ...Special requirements for oxidizers and compressed oxygen. 175.501 Section 175.501 Transportation...Special requirements for oxidizers and compressed oxygen. (a) Compressed oxygen, when properly labeled Oxidizer or Oxygen,...

  15. 49 CFR 175.501 - Special requirements for oxidizers and compressed oxygen.

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ...Special requirements for oxidizers and compressed oxygen. 175.501 Section 175.501 Transportation...Special requirements for oxidizers and compressed oxygen. (a) Compressed oxygen, when properly labeled Oxidizer or Oxygen,...

  16. 49 CFR 175.501 - Special requirements for oxidizers and compressed oxygen.

    Code of Federal Regulations, 2012 CFR

    2012-10-01

    ...Special requirements for oxidizers and compressed oxygen. 175.501 Section 175.501 Transportation...Special requirements for oxidizers and compressed oxygen. (a) Compressed oxygen, when properly labeled Oxidizer or Oxygen,...

  17. UV light from the ground term of Ti-like ytterbium, tungsten, and bismuth J. V. Porto, I. Kink, and J. D. Gillaspy

    E-print Network

    Chantler, Christopher T.

    UV light from the ground term of Ti-like ytterbium, tungsten, and bismuth J. V. Porto, I. Kink, and bismuth. This fills in a gap in previous measurements along this isoelectronic sequence, as well tungsten and bismuth 9 provide strong motivation for measuring them. Electron-beam ion traps EBIT

  18. Indirect Production of No Carrier Added (NCA) (177)Lu from Irradiation of Enriched (176)Yb: Options for Ytterbium/Lutetium Separation.

    PubMed

    Dash, Ashutosh; Chakravarty, Rubel; Knapp, Furn F Russ; Pillai, Ambikalmajan M R

    2015-01-01

    This article presents a concise review of the production of no-carrier-added (NCA) (177)Lu by the 'indirect' route by irradiating ytterbium-176 ((176)Yb)-enriched targets. The success of this production method depends on the ability to separate the microscopic amounts of NCA (177)Lu from bulk irradiated ytterbium targets. The presence of Yb(+3) from the target in the final processed (177)Lu will adversely affect the quality of (177)Lu by decreasing the specific activity and competing with Lu(+3) complexation since ytterbium will follow the same coordination chemistry. Ytterbium and lutetium are adjacent members of the lanthanide family with very similar chemical properties which makes the separation of one from the other a challenging task. This review provides a summary of the methods developed for the separation and purification of NCA (177)Lu from neutron irradiated (176)Yb-enriched targets, a critical assessment of recent developments and a discussion of the current status of this (177)Lu production method. PMID:25771377

  19. 26 CFR 1.175-1 - Soil and water conservation expenditures; in general.

    Code of Federal Regulations, 2013 CFR

    2013-04-01

    ... 26 Internal Revenue 3 2013-04-01 2013-04-01 false Soil and water conservation expenditures; in general. 1.175-1 Section 1.175-1 Internal Revenue INTERNAL REVENUE SERVICE, DEPARTMENT OF THE TREASURY (CONTINUED) INCOME TAX (CONTINUED) INCOME TAXES (CONTINUED) Itemized Deductions for Individuals and Corporations (continued) § 1.175-1 Soil and...

  20. 41 CFR 102-41.175 - May we sell unclaimed personal property?

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 41 Public Contracts and Property Management 3 2010-07-01 2010-07-01 false May we sell unclaimed personal property? 102-41.175 Section 102-41.175 Public Contracts and Property Management Federal Property... § 102-41.175 May we sell unclaimed personal property? Yes, you may sell unclaimed personal...

  1. 27 CFR 17.5 - Products manufactured in Puerto Rico or the Virgin Islands.

    Code of Federal Regulations, 2012 CFR

    2012-04-01

    ... Puerto Rico or the Virgin Islands. 17.5 Section 17.5 Alcohol, Tobacco Products and Firearms ALCOHOL AND... are unfit for beverage purposes and which are brought into the United States from Puerto Rico or the U... USED IN MANUFACTURING NONBEVERAGE PRODUCTS General Provisions § 17.5 Products manufactured in...

  2. 27 CFR 17.5 - Products manufactured in Puerto Rico or the Virgin Islands.

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ... Puerto Rico or the Virgin Islands. 17.5 Section 17.5 Alcohol, Tobacco Products and Firearms ALCOHOL AND... are unfit for beverage purposes and which are brought into the United States from Puerto Rico or the U... USED IN MANUFACTURING NONBEVERAGE PRODUCTS General Provisions § 17.5 Products manufactured in...

  3. 27 CFR 17.5 - Products manufactured in Puerto Rico or the Virgin Islands.

    Code of Federal Regulations, 2013 CFR

    2013-04-01

    ... Puerto Rico or the Virgin Islands. 17.5 Section 17.5 Alcohol, Tobacco Products and Firearms ALCOHOL AND... are unfit for beverage purposes and which are brought into the United States from Puerto Rico or the U... USED IN MANUFACTURING NONBEVERAGE PRODUCTS General Provisions § 17.5 Products manufactured in...

  4. 49 CFR 38.175 - High-speed rail cars, monorails and systems.

    Code of Federal Regulations, 2012 CFR

    2012-10-01

    ... 49 Transportation 1 2012-10-01 2012-10-01 false High-speed rail cars, monorails and systems. 38.175 Section 38.175 Transportation Office of the Secretary of Transportation AMERICANS WITH DISABILITIES ACT (ADA) ACCESSIBILITY SPECIFICATIONS FOR TRANSPORTATION VEHICLES Other Vehicles and Systems § 38.175 High-speed rail cars, monorails and...

  5. 49 CFR 38.175 - High-speed rail cars, monorails and systems.

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ... 49 Transportation 1 2013-10-01 2013-10-01 false High-speed rail cars, monorails and systems. 38.175 Section 38.175 Transportation Office of the Secretary of Transportation AMERICANS WITH DISABILITIES ACT (ADA) ACCESSIBILITY SPECIFICATIONS FOR TRANSPORTATION VEHICLES Other Vehicles and Systems § 38.175 High-speed rail cars, monorails and...

  6. 49 CFR 38.175 - High-speed rail cars, monorails and systems.

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ... 49 Transportation 1 2011-10-01 2011-10-01 false High-speed rail cars, monorails and systems. 38.175 Section 38.175 Transportation Office of the Secretary of Transportation AMERICANS WITH DISABILITIES ACT (ADA) ACCESSIBILITY SPECIFICATIONS FOR TRANSPORTATION VEHICLES Other Vehicles and Systems § 38.175 High-speed rail cars, monorails and...

  7. 48 CFR 217.175 - Multiyear contracts for electricity from renewable energy sources.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... electricity from renewable energy sources. 217.175 Section 217.175 Federal Acquisition Regulations System... SPECIAL CONTRACTING METHODS Mulityear Contracting 217.175 Multiyear contracts for electricity from... not to exceed 10 years for the purchase of electricity from sources of renewable energy, as that...

  8. 21 CFR 175.350 - Vinyl acetate/crotonic acid copolymer.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ...2009-04-01 true Vinyl acetate/crotonic acid copolymer. 175.350 Section 175.350... § 175.350 Vinyl acetate/crotonic acid copolymer. A copolymer of vinyl acetate and crotonic acid may be safely used as a coating or...

  9. 26 CFR 1.175-3 - Definition of “the business of farming.”

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ... 26 Internal Revenue 3 2011-04-01 2011-04-01 false Definition of âthe business of farming.â 1.175-3... (continued) § 1.175-3 Definition of “the business of farming.” The method described in section 175 is available only to a taxpayer engaged in “the business of farming”. A taxpayer is engaged in the business...

  10. 26 CFR 1.175-3 - Definition of “the business of farming.”

    Code of Federal Regulations, 2014 CFR

    2014-04-01

    ... 26 Internal Revenue 3 2014-04-01 2014-04-01 false Definition of âthe business of farming.â 1.175-3... (continued) § 1.175-3 Definition of “the business of farming.” The method described in section 175 is available only to a taxpayer engaged in “the business of farming”. A taxpayer is engaged in the business...

  11. 26 CFR 1.175-3 - Definition of “the business of farming.”

    Code of Federal Regulations, 2012 CFR

    2012-04-01

    ... 26 Internal Revenue 3 2012-04-01 2012-04-01 false Definition of âthe business of farming.â 1.175-3... (continued) § 1.175-3 Definition of “the business of farming.” The method described in section 175 is available only to a taxpayer engaged in “the business of farming”. A taxpayer is engaged in the business...

  12. 26 CFR 1.175-4 - Definition of “land used in farming.”

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ... 26 Internal Revenue 3 2011-04-01 2011-04-01 false Definition of âland used in farming.â 1.175-4... (continued) § 1.175-4 Definition of “land used in farming.” (a) Requirements. For purposes of section 175, the term land used in farming means land which is used in the business of farming and which meets...

  13. 26 CFR 1.175-3 - Definition of “the business of farming.”

    Code of Federal Regulations, 2013 CFR

    2013-04-01

    ... 26 Internal Revenue 3 2013-04-01 2013-04-01 false Definition of âthe business of farming.â 1.175-3... (continued) § 1.175-3 Definition of “the business of farming.” The method described in section 175 is available only to a taxpayer engaged in “the business of farming”. A taxpayer is engaged in the business...

  14. 26 CFR 1.175-4 - Definition of “land used in farming.”

    Code of Federal Regulations, 2014 CFR

    2014-04-01

    ... 26 Internal Revenue 3 2014-04-01 2014-04-01 false Definition of âland used in farming.â 1.175-4... (continued) § 1.175-4 Definition of “land used in farming.” (a) Requirements. For purposes of section 175, the term land used in farming means land which is used in the business of farming and which meets...

  15. 26 CFR 1.175-4 - Definition of “land used in farming.”

    Code of Federal Regulations, 2012 CFR

    2012-04-01

    ... 26 Internal Revenue 3 2012-04-01 2012-04-01 false Definition of âland used in farming.â 1.175-4... (continued) § 1.175-4 Definition of “land used in farming.” (a) Requirements. For purposes of section 175, the term land used in farming means land which is used in the business of farming and which meets...

  16. 26 CFR 1.175-4 - Definition of “land used in farming.”

    Code of Federal Regulations, 2013 CFR

    2013-04-01

    ... 26 Internal Revenue 3 2013-04-01 2013-04-01 false Definition of âland used in farming.â 1.175-4... (continued) § 1.175-4 Definition of “land used in farming.” (a) Requirements. For purposes of section 175, the term land used in farming means land which is used in the business of farming and which meets...

  17. 20 CFR 220.175 - Responsibility to notify the Board of events which affect disability.

    Code of Federal Regulations, 2014 CFR

    2014-04-01

    ... 20 Employees' Benefits 1 2014-04-01 2012-04-01 true Responsibility to notify the Board of events which affect disability. 220.175 Section 220.175 Employees' Benefits RAILROAD RETIREMENT BOARD... Substantial Gainful Activity or Medical Improvement § 220.175 Responsibility to notify the Board of...

  18. 20 CFR 220.175 - Responsibility to notify the Board of events which affect disability.

    Code of Federal Regulations, 2013 CFR

    2013-04-01

    ... 20 Employees' Benefits 1 2013-04-01 2012-04-01 true Responsibility to notify the Board of events which affect disability. 220.175 Section 220.175 Employees' Benefits RAILROAD RETIREMENT BOARD... Substantial Gainful Activity or Medical Improvement § 220.175 Responsibility to notify the Board of...

  19. 20 CFR 220.175 - Responsibility to notify the Board of events which affect disability.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ... 20 Employees' Benefits 1 2010-04-01 2010-04-01 false Responsibility to notify the Board of events which affect disability. 220.175 Section 220.175 Employees' Benefits RAILROAD RETIREMENT BOARD... Substantial Gainful Activity or Medical Improvement § 220.175 Responsibility to notify the Board of...

  20. 20 CFR 220.175 - Responsibility to notify the Board of events which affect disability.

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ... 20 Employees' Benefits 1 2011-04-01 2011-04-01 false Responsibility to notify the Board of events which affect disability. 220.175 Section 220.175 Employees' Benefits RAILROAD RETIREMENT BOARD... Substantial Gainful Activity or Medical Improvement § 220.175 Responsibility to notify the Board of...

  1. 20 CFR 220.175 - Responsibility to notify the Board of events which affect disability.

    Code of Federal Regulations, 2012 CFR

    2012-04-01

    ... 20 Employees' Benefits 1 2012-04-01 2012-04-01 false Responsibility to notify the Board of events which affect disability. 220.175 Section 220.175 Employees' Benefits RAILROAD RETIREMENT BOARD... Substantial Gainful Activity or Medical Improvement § 220.175 Responsibility to notify the Board of...

  2. 40 CFR 704.175 - 4,4?-methylenebis(2-chloroaniline) (MBOCA).

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... 40 Protection of Environment 32 2012-07-01 2012-07-01 false 4,4â²-methylenebis(2-chloroaniline) (MBOCA). 704.175 Section 704.175 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) TOXIC SUBSTANCES CONTROL ACT REPORTING AND RECORDKEEPING REQUIREMENTS Chemical-Specific Reporting and Recordkeeping Rules § 704.175...

  3. 25 CFR 1000.175 - What is the process for conducting the negotiation phase?

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ... 25 Indians 2 2011-04-01 2011-04-01 false What is the process for conducting the negotiation phase? 1000.175 Section 1000.175 Indians OFFICE OF THE ASSISTANT SECRETARY, INDIAN AFFAIRS, DEPARTMENT OF THE... Funding Agreements § 1000.175 What is the process for conducting the negotiation phase? (a) Within 30...

  4. 25 CFR 1000.175 - What is the process for conducting the negotiation phase?

    Code of Federal Regulations, 2013 CFR

    2013-04-01

    ... 25 Indians 2 2013-04-01 2013-04-01 false What is the process for conducting the negotiation phase? 1000.175 Section 1000.175 Indians OFFICE OF THE ASSISTANT SECRETARY, INDIAN AFFAIRS, DEPARTMENT OF THE... Funding Agreements § 1000.175 What is the process for conducting the negotiation phase? (a) Within 30...

  5. A physical model of the photo- and radiation-induced degradation of ytterbium-doped silica optical fibres

    SciTech Connect

    Mady, Franck Duchez, Jean-Bernard Mebrouk, Yasmine Benabdesselam, Mourad

    2014-10-21

    We propose a model to describe the photo- or/and the radiation-induced darkening of ytterbium-doped silica optical fibers. This model accounts for the well-established experimental features of photo-darkening. Degradation behaviors predicted for fibers pumped in harsh environments are also fully confirmed by experimental data reported in the work by Duchez et al. (this proceeding), which gives a detailed characterization of the interplay between the effects of the pump and those of a superimposed ionizing irradiation (actual operation conditions in space-based applications for instance). In particular, dependences of the darkening build-up on the pump power, the total ionizing dose and the dose rate are all correctly reproduced. The presented model is a ‘sufficient’ one, including the minimal physical ingredients required to reproduce experimental features. Refinements could be proposed to improve, e.g., quantitative kinetics.

  6. Creep Behavior of Hafnia and Ytterbium Silicate Environmental Barrier Coating Systems on SiC/SiC Ceramic Matrix Composites

    NASA Technical Reports Server (NTRS)

    Zhu, Dongming; Fox, Dennis S.; Ghosn, Louis J.; Harder, Bryan

    2011-01-01

    Environmental barrier coatings will play a crucial role in future advanced gas turbine engines because of their ability to significantly extend the temperature capability and stability of SiC/SiC ceramic matrix composite (CMC) engine components, thus improving the engine performance. In order to develop high performance, robust coating systems for engine components, appropriate test approaches simulating operating temperature gradient and stress environments for evaluating the critical coating properties must be established. In this paper, thermal gradient mechanical testing approaches for evaluating creep and fatigue behavior of environmental barrier coated SiC/SiC CMC systems will be described. The creep and fatigue behavior of Hafnia and ytterbium silicate environmental barrier coatings on SiC/SiC CMC systems will be reported in simulated environmental exposure conditions. The coating failure mechanisms will also be discussed under the heat flux and stress conditions.

  7. Multiple pulses and harmonic mode locking from passive mode-locked Ytterbium doped fiber in anomalous dispersion region

    NASA Astrophysics Data System (ADS)

    Lin, Ja-Hon; Lee, Hung-Yi; Hsieh, Wen-Feng

    2015-05-01

    In this work, we investigate the passive mode-locked Ytterbium-doped fiber laser based on the nonlinear polarization rotation technique. With the grating pairs inside laser cavity for the GVD compensation, the total cavity dispersion is operated within anomalous dispersion region. As the laser operates at fundamental mode locking, it generates 35 MHz repetition rate mode-locked pulse with 3.3 ps pulsewidth and the optical spectrum reveals obvious Kelly side. After adjusting the waveplate or increase the pump power, the 2nd HML to 6th harmonic mode locking (HML) is demonstrated in this laser. Besides, we also generated the bound states of multiple solitons whose separation of each pulse is about several tens of picosecond. The number of solitons and the separation between sequential pulses could be controlled so that it could be used in optical communication.

  8. Ytterbium fiber laser based on first-order fiber Bragg gratings written with 400 nm femtosecond pulses and a phase-mask.

    PubMed

    Bernier, M; Vallée, R; Morasse, B; Desrosiers, C; Saliminia, A; Sheng, Y

    2009-10-12

    A Fiber Bragg grating of 369 nm pitch was inscribed in a germanium-free double-clad ytterbium doped silica fiber using a femto-second pulse train at 400 nm wavelength and a phase mask. The photo-induced refractive index modulation of higher than 4 x 10(-3) was obtained and the accompanying photo-induced losses were subsequently removed by thermal annealing, resulting in a low loss (<0.1 dB), stable and high reflectivity (>40 dB) FBG. Based on this FBG, a monolithic Ytterbium fiber laser operating at 1073 nm with slope efficiency of 71% and output power of 13 W was demonstrated. PMID:20372623

  9. Phosphate ytterbium-doped single-mode all-solid photonic crystal fiber with output power of 13.8?W

    PubMed Central

    Wang, Longfei; He, Dongbing; Feng, Suya; Yu, Chunlei; Hu, Lili; Qiu, Jianrong; Chen, Danping

    2015-01-01

    Single-mode ytterbium-doped phosphate all-solid photonic crystal fiber (AS-PCF) with 13.8?W output power and 32% slope efficiency was reported. By altering the diameter of the rods around the doped core and thus breaking the symmetry of the fiber, a polarization-maintaining AS-PCF with degree of polarization of >85% was also achieved, for the first time to knowledge, in a phosphate PCF. PMID:25684731

  10. 40 CFR 417.175 - Standards of performance for new sources.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ...) EFFLUENT GUIDELINES AND STANDARDS SOAP AND DETERGENT MANUFACTURING POINT SOURCE CATEGORY Manufacture of Detergents by Dry Blending Subcategory § 417.175 Standards of performance for new sources. The...

  11. High Intensity Mirror-Free Nanosecond Ytterbium Fiber Laser System in Master Oscillator Power Amplification

    NASA Astrophysics Data System (ADS)

    Chun-Lin, Louis Chang

    Rare-earth-doped fiber lasers and amplifiers are relatively easy to efficiently produce a stable and high quality laser beam in a compact, robust, and alignment-free configuration. Recently, high power fiber laser systems have facilitated wide spread applications in academics, industries, and militaries in replacement of bulk solid-state laser systems. The master oscillator power amplifier (MOPA) composed of a highly-controlled seed, high-gain preamplifiers, and high-efficiency power amplifiers are typically utilized to scale up the pulse energy, peak power, or average power. Furthermore, a direct-current-modulated nanosecond diode laser in single transverse mode can simply provide a compact and highly-controlled seed to result in the flexible output parameters, such as repetition rate, pulse duration, and even temporal pulse shape. However, when scaling up the peak power for high intensity applications, such a versatile diode-seeded nanosecond MOPA laser system using rare-earth-doped fibers is unable to completely save its own advantages compared to bulk laser systems. Without a strong seeding among the amplifiers, the guided amplified spontaneous amplification is easy to become dominant during the amplification, leading to the harmful self-lasing or pulsing effects, and the difficulty of the quantitative numerical comparison. In this dissertation, we study a high-efficiency and intense nanosecond ytterbium fiber MOPA system with good beam quality and stability for high intensity applications. The all-PM-fiber structure is achieved with the output extinction ratio of >12 dB by optimizing the interconnection of high power optical fibers. The diode-seeded MOPA configuration without parasitic stimulated amplification (PAS) is implemented using the double-pass scheme to extract energy efficiently for scaling peak power. The broadband PAS was studied experimentally, which matches well with our numerical simulation. The 1064-nm nanosecond seed was a direct-current-modulated Fabry-Perot diode laser associated with a weak and pulsed noise spanning from 1045 to 1063 nm. Even though the contribution of input noise pulse is only <5%, it becomes a significant transient spike during amplification. The blue-shifted pulsed noise may be caused by band filling effect for quantum-well seed laser driven by high peak current. The study helps the development of adaptive pulse shaping for scaling peak power or energy at high efficiency. On the other hand, the broadband spike with a 3-dB bandwidth of 8.8 nm can support pulses to seed the amplifier for sub-nanosecond giant pulse generation. Because of the very weak seed laser, the design of high-gain preamplifier becomes critical. The utilization of single-mode core-pumped fiber preamplifier can not only improve the mode contrast without fiber coiling effect but also significantly suppress the fiber nonlinearity. The double-pass scheme was therefore studied both numerically and experimentally to improve energy extraction efficiency for the lack of attainable seed and core-pumped power. As a result, a record-high peak power of > 30 kW and energy of > 0.23 mJ was successfully achieved to the best of our knowledge from the output of clad-pumped power amplifier with a beam quality of M2 ˜1.1 in a diode-seeded 15-microm-core fiber MOPA system. After the power amplifier, the MOPA conversion efficiency can be dramatically improved to >56% for an energy gain of >63 dB at a moderate repetition rate of 20 kHz with a beam quality of M 2 <1.5. The output energy of >1.1 mJ with a pulse duration of ˜6.1 ns can result in a peak power up to >116 kW which is limited by fiber fuse in long-term operation. Such a condition able to generate the on-target laser intensity of > 60 GW/cm2 for applications is qualified to preliminarily create a laser-plasma light source. Moreover, the related simulation results also reveal the double-passed power amplifier can further simplify MOPA. Such an intense clad-pumped power amplifier can further become a nonlinear fiber amplifier in al

  12. 49 CFR 175.501 - Special requirements for oxidizers and compressed oxygen.

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ... 49 Transportation 2 2013-10-01 2013-10-01 false Special requirements for oxidizers and compressed oxygen. 175.501 Section 175.501 Transportation Other Regulations Relating to Transportation PIPELINE AND HAZARDOUS MATERIALS SAFETY ADMINISTRATION, DEPARTMENT OF TRANSPORTATION HAZARDOUS MATERIALS REGULATIONS CARRIAGE BY AIRCRAFT Specific...

  13. 46 CFR 133.175 - Survival craft and rescue boat equipment.

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ... 46 Shipping 4 2011-10-01 2011-10-01 false Survival craft and rescue boat equipment. 133.175... LIFESAVING SYSTEMS Requirements for All OSVs § 133.175 Survival craft and rescue boat equipment. (a) All rescue boat equipment must be as follows: (1) The equipment must be secured within the boat by...

  14. 46 CFR 133.175 - Survival craft and rescue boat equipment.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... 46 Shipping 4 2010-10-01 2010-10-01 false Survival craft and rescue boat equipment. 133.175... LIFESAVING SYSTEMS Requirements for All OSVs § 133.175 Survival craft and rescue boat equipment. (a) All rescue boat equipment must be as follows: (1) The equipment must be secured within the boat by...

  15. 46 CFR 133.175 - Survival craft and rescue boat equipment.

    Code of Federal Regulations, 2012 CFR

    2012-10-01

    ... 46 Shipping 4 2012-10-01 2012-10-01 false Survival craft and rescue boat equipment. 133.175... LIFESAVING SYSTEMS Requirements for All OSVs § 133.175 Survival craft and rescue boat equipment. (a) All rescue boat equipment must be as follows: (1) The equipment must be secured within the boat by...

  16. 46 CFR 133.175 - Survival craft and rescue boat equipment.

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ... 46 Shipping 4 2013-10-01 2013-10-01 false Survival craft and rescue boat equipment. 133.175... LIFESAVING SYSTEMS Requirements for All OSVs § 133.175 Survival craft and rescue boat equipment. (a) All rescue boat equipment must be as follows: (1) The equipment must be secured within the boat by...

  17. 46 CFR 133.175 - Survival craft and rescue boat equipment.

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ... 46 Shipping 4 2014-10-01 2014-10-01 false Survival craft and rescue boat equipment. 133.175... LIFESAVING SYSTEMS Requirements for All OSVs § 133.175 Survival craft and rescue boat equipment. (a) All rescue boat equipment must be as follows: (1) The equipment must be secured within the boat by...

  18. 49 CFR 175.501 - Special requirements for oxidizers and compressed oxygen.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ...) of this section. (d) When transported in a Class B aircraft cargo compartment (see 14 CFR 25.857(b... oxygen. 175.501 Section 175.501 Transportation Other Regulations Relating to Transportation PIPELINE AND... Special requirements for oxidizers and compressed oxygen. (a) Compressed oxygen, when properly...

  19. 49 CFR 175.501 - Special requirements for oxidizers and compressed oxygen.

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ...) of this section. (d) When transported in a Class B aircraft cargo compartment (see 14 CFR 25.857(b... oxygen. 175.501 Section 175.501 Transportation Other Regulations Relating to Transportation PIPELINE AND... Special requirements for oxidizers and compressed oxygen. (a) Compressed oxygen, when properly...

  20. 21 CFR 175.365 - Vinylidene chloride copolymer coatings for polycarbonate film.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ... polycarbonate film. 175.365 Section 175.365 Food and Drugs FOOD AND DRUG ADMINISTRATION, DEPARTMENT OF HEALTH... chloride copolymer coatings for polycarbonate film. Vinylidene chloride copolymer coatings identified in this section and applied on polycarbonate film may be safely used as food-contact surfaces,...

  1. 21 CFR 175.360 - Vinylidene chloride copolymer coatings for nylon film.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ... film. 175.360 Section 175.360 Food and Drugs FOOD AND DRUG ADMINISTRATION, DEPARTMENT OF HEALTH AND... coatings for nylon film. Vinylidene chloride copolymer coatings identified in this section and applied on nylon film may be safely used as food-contact surfaces, in accordance with the following...

  2. 26 CFR 1.175-1 - Soil and water conservation expenditures; in general.

    Code of Federal Regulations, 2012 CFR

    2012-04-01

    ...2012-04-01 2012-04-01 false Soil and water conservation expenditures; in...Corporations (continued) § 1.175-1 Soil and water conservation expenditures; in...Under section 175, a farmer may deduct his soil or water conservation...

  3. 26 CFR 1.175-1 - Soil and water conservation expenditures; in general.

    Code of Federal Regulations, 2013 CFR

    2013-04-01

    ...2013-04-01 2013-04-01 false Soil and water conservation expenditures; in...Corporations (continued) § 1.175-1 Soil and water conservation expenditures; in...Under section 175, a farmer may deduct his soil or water conservation...

  4. 26 CFR 1.175-1 - Soil and water conservation expenditures; in general.

    Code of Federal Regulations, 2014 CFR

    2014-04-01

    ...2014-04-01 2014-04-01 false Soil and water conservation expenditures; in...Corporations (continued) § 1.175-1 Soil and water conservation expenditures; in...Under section 175, a farmer may deduct his soil or water conservation...

  5. 49 CFR 175.25 - Notification at air passenger facilities of hazardous materials restrictions.

    Code of Federal Regulations, 2012 CFR

    2012-10-01

    ... 49 Transportation 2 2012-10-01 2012-10-01 false Notification at air passenger facilities of hazardous materials restrictions. 175.25 Section 175.25 Transportation Other Regulations Relating to Transportation PIPELINE AND HAZARDOUS MATERIALS SAFETY ADMINISTRATION, DEPARTMENT OF TRANSPORTATION HAZARDOUS MATERIALS REGULATIONS CARRIAGE BY...

  6. 33 CFR 165.T13-175 - Safety Zone; M/V DAVY CROCKETT, Columbia River.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ...Safety Zone; M/V DAVY CROCKETT, Columbia River. 165.T13-175 Section 165.T13-175...Safety Zone; M/V DAVY CROCKETT, Columbia River. (a) Location: The following area...zone: (1) All waters of the Columbia River encompassed within the following four...

  7. 21 CFR 175.260 - Partial phosphoric acid esters of polyester resins.

    Code of Federal Regulations, 2012 CFR

    2012-04-01

    ... 21 Food and Drugs 3 2012-04-01 2012-04-01 false Partial phosphoric acid esters of polyester resins. 175.260 Section 175.260 Food and Drugs FOOD AND DRUG ADMINISTRATION, DEPARTMENT OF HEALTH AND HUMAN SERVICES (CONTINUED) FOOD FOR HUMAN CONSUMPTION (CONTINUED) INDIRECT FOOD ADDITIVES: ADHESIVES...

  8. 21 CFR 175.360 - Vinylidene chloride copolymer coatings for nylon film.

    Code of Federal Regulations, 2012 CFR

    2012-04-01

    ... 21 Food and Drugs 3 2012-04-01 2012-04-01 false Vinylidene chloride copolymer coatings for nylon film. 175.360 Section 175.360 Food and Drugs FOOD AND DRUG ADMINISTRATION, DEPARTMENT OF HEALTH AND HUMAN SERVICES (CONTINUED) FOOD FOR HUMAN CONSUMPTION (CONTINUED) INDIRECT FOOD ADDITIVES: ADHESIVES...

  9. 21 CFR 175.260 - Partial phosphoric acid esters of polyester resins.

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ... 21 Food and Drugs 3 2011-04-01 2011-04-01 false Partial phosphoric acid esters of polyester resins. 175.260 Section 175.260 Food and Drugs FOOD AND DRUG ADMINISTRATION, DEPARTMENT OF HEALTH AND HUMAN SERVICES (CONTINUED) FOOD FOR HUMAN CONSUMPTION (CONTINUED) INDIRECT FOOD ADDITIVES: ADHESIVES...

  10. 21 CFR 175.260 - Partial phosphoric acid esters of polyester resins.

    Code of Federal Regulations, 2013 CFR

    2013-04-01

    ... 21 Food and Drugs 3 2013-04-01 2013-04-01 false Partial phosphoric acid esters of polyester resins. 175.260 Section 175.260 Food and Drugs FOOD AND DRUG ADMINISTRATION, DEPARTMENT OF HEALTH AND HUMAN SERVICES (CONTINUED) FOOD FOR HUMAN CONSUMPTION (CONTINUED) INDIRECT FOOD ADDITIVES: ADHESIVES...

  11. 21 CFR 175.350 - Vinyl acetate/crotonic acid copolymer.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ... 21 Food and Drugs 3 2010-04-01 2009-04-01 true Vinyl acetate/crotonic acid copolymer. 175.350 Section 175.350 Food and Drugs FOOD AND DRUG ADMINISTRATION, DEPARTMENT OF HEALTH AND HUMAN SERVICES (CONTINUED) FOOD FOR HUMAN CONSUMPTION (CONTINUED) INDIRECT FOOD ADDITIVES: ADHESIVES AND COMPONENTS...

  12. 21 CFR 175.350 - Vinyl acetate/crotonic acid copolymer.

    Code of Federal Regulations, 2013 CFR

    2013-04-01

    ... 21 Food and Drugs 3 2013-04-01 2013-04-01 false Vinyl acetate/crotonic acid copolymer. 175.350 Section 175.350 Food and Drugs FOOD AND DRUG ADMINISTRATION, DEPARTMENT OF HEALTH AND HUMAN SERVICES (CONTINUED) FOOD FOR HUMAN CONSUMPTION (CONTINUED) INDIRECT FOOD ADDITIVES: ADHESIVES AND COMPONENTS...

  13. 21 CFR 175.350 - Vinyl acetate/crotonic acid copolymer.

    Code of Federal Regulations, 2014 CFR

    2014-04-01

    ... 21 Food and Drugs 3 2014-04-01 2014-04-01 false Vinyl acetate/crotonic acid copolymer. 175.350 Section 175.350 Food and Drugs FOOD AND DRUG ADMINISTRATION, DEPARTMENT OF HEALTH AND HUMAN SERVICES (CONTINUED) INDIRECT FOOD ADDITIVES: ADHESIVES AND COMPONENTS OF COATINGS Substances for Use as Components...

  14. 21 CFR 175.230 - Hot-melt strippable food coatings.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ... 21 Food and Drugs 3 2010-04-01 2009-04-01 true Hot-melt strippable food coatings. 175.230 Section 175.230 Food and Drugs FOOD AND DRUG ADMINISTRATION, DEPARTMENT OF HEALTH AND HUMAN SERVICES (CONTINUED) FOOD FOR HUMAN CONSUMPTION (CONTINUED) INDIRECT FOOD ADDITIVES: ADHESIVES AND COMPONENTS...

  15. 21 CFR 175.350 - Vinyl acetate/crotonic acid copolymer.

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ... 21 Food and Drugs 3 2011-04-01 2011-04-01 false Vinyl acetate/crotonic acid copolymer. 175.350 Section 175.350 Food and Drugs FOOD AND DRUG ADMINISTRATION, DEPARTMENT OF HEALTH AND HUMAN SERVICES (CONTINUED) FOOD FOR HUMAN CONSUMPTION (CONTINUED) INDIRECT FOOD ADDITIVES: ADHESIVES AND COMPONENTS...

  16. 21 CFR 175.350 - Vinyl acetate/crotonic acid copolymer.

    Code of Federal Regulations, 2012 CFR

    2012-04-01

    ... 21 Food and Drugs 3 2012-04-01 2012-04-01 false Vinyl acetate/crotonic acid copolymer. 175.350 Section 175.350 Food and Drugs FOOD AND DRUG ADMINISTRATION, DEPARTMENT OF HEALTH AND HUMAN SERVICES (CONTINUED) FOOD FOR HUMAN CONSUMPTION (CONTINUED) INDIRECT FOOD ADDITIVES: ADHESIVES AND COMPONENTS...

  17. 21 CFR 175.360 - Vinylidene chloride copolymer coatings for nylon film.

    Code of Federal Regulations, 2013 CFR

    2013-04-01

    ... 21 Food and Drugs 3 2013-04-01 2013-04-01 false Vinylidene chloride copolymer coatings for nylon film. 175.360 Section 175.360 Food and Drugs FOOD AND DRUG ADMINISTRATION, DEPARTMENT OF HEALTH AND HUMAN SERVICES (CONTINUED) FOOD FOR HUMAN CONSUMPTION (CONTINUED) INDIRECT FOOD ADDITIVES: ADHESIVES...

  18. FIFO Generator v3.2 UG175 September 21, 2006

    E-print Network

    Berns, Hans-Gerd

    R LogiCORETM FIFO Generator v3.2 User Guide UG175 September 21, 2006 #12;FIFO Generator v3.2 User Guide www.xilinx.com UG175 September 21, 2006 Xilinx is disclosing this Document and Intellectual Property (hereinafter "the Design") to you for use in the development of designs to operate on

  19. 49 CFR 175.501 - Special requirements for oxidizers and compressed oxygen.

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ...) of this section. (d) When transported in a Class B aircraft cargo compartment (see 14 CFR 25.857(b... oxygen. 175.501 Section 175.501 Transportation Other Regulations Relating to Transportation PIPELINE AND... Special requirements for oxidizers and compressed oxygen. (a) Compressed oxygen, when properly...

  20. 49 CFR 175.501 - Special requirements for oxidizers and compressed oxygen.

    Code of Federal Regulations, 2012 CFR

    2012-10-01

    ...) of this section. (d) When transported in a Class B aircraft cargo compartment (see 14 CFR 25.857(b... oxygen. 175.501 Section 175.501 Transportation Other Regulations Relating to Transportation PIPELINE AND... Special requirements for oxidizers and compressed oxygen. (a) Compressed oxygen, when properly...

  1. 10 CFR 431.175 - Additional requirements applicable to non-Voluntary Independent Certification Program participants.

    Code of Federal Regulations, 2011 CFR

    2011-01-01

    ... 10 Energy 3 2011-01-01 2011-01-01 false Additional requirements applicable to non-Voluntary Independent Certification Program participants. 431.175 Section 431.175 Energy DEPARTMENT OF ENERGY ENERGY CONSERVATION ENERGY EFFICIENCY PROGRAM FOR CERTAIN COMMERCIAL AND INDUSTRIAL EQUIPMENT Provisions...

  2. 27 CFR 17.5 - Products manufactured in Puerto Rico or the Virgin Islands.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ... 27 Alcohol, Tobacco Products and Firearms 1 2010-04-01 2010-04-01 false Products manufactured in Puerto Rico or the Virgin Islands. 17.5 Section 17.5 Alcohol, Tobacco Products and Firearms ALCOHOL AND TOBACCO TAX AND TRADE BUREAU, DEPARTMENT OF THE TREASURY LIQUORS DRAWBACK ON TAXPAID DISTILLED SPIRITS USED IN MANUFACTURING NONBEVERAGE...

  3. 46 CFR 175.400 - Definitions of terms used in this subchapter.

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ... tested in accordance with ASTM B 117 (incorporated by reference, see 46 CFR 175.600) for 200 hours, does... (incorporated by reference, see 46 CFR 175.600). Float-free launching or arrangement means that method of... Certificate of Number issued under the provisions of 33 CFR part 173, subpart B (Numbering); or (2) For...

  4. 46 CFR 175.400 - Definitions of terms used in this subchapter.

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ... tested in accordance with ASTM B 117 (incorporated by reference, see 46 CFR 175.600) for 200 hours, does... (incorporated by reference, see 46 CFR 175.600). Float-free launching or arrangement means that method of... Certificate of Number issued under the provisions of 33 CFR part 173, subpart B (Numbering); or (2) For...

  5. 46 CFR 175.400 - Definitions of terms used in this subchapter.

    Code of Federal Regulations, 2012 CFR

    2012-10-01

    ... tested in accordance with ASTM B 117 (incorporated by reference, see 46 CFR 175.600) for 200 hours, does... (incorporated by reference, see 46 CFR 175.600). Float-free launching or arrangement means that method of... Certificate of Number issued under the provisions of 33 CFR part 173, subpart B (Numbering); or (2) For...

  6. 26 CFR 1.175-1 - Soil and water conservation expenditures; in general.

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ...2011-04-01 2011-04-01 false Soil and water conservation expenditures; in...Corporations (continued) § 1.175-1 Soil and water conservation expenditures; in...Under section 175, a farmer may deduct his soil or water conservation...

  7. 21 CFR 175.230 - Hot-melt strippable food coatings.

    Code of Federal Regulations, 2012 CFR

    2012-04-01

    ... 21 Food and Drugs 3 2012-04-01 2012-04-01 false Hot-melt strippable food coatings. 175.230 Section 175.230 Food and Drugs FOOD AND DRUG ADMINISTRATION, DEPARTMENT OF HEALTH AND HUMAN SERVICES (CONTINUED) FOOD FOR HUMAN CONSUMPTION (CONTINUED) INDIRECT FOOD ADDITIVES: ADHESIVES AND COMPONENTS OF COATINGS Substances for Use as Components...

  8. 21 CFR 175.230 - Hot-melt strippable food coatings.

    Code of Federal Regulations, 2014 CFR

    2014-04-01

    ... 21 Food and Drugs 3 2014-04-01 2014-04-01 false Hot-melt strippable food coatings. 175.230 Section 175.230 Food and Drugs FOOD AND DRUG ADMINISTRATION, DEPARTMENT OF HEALTH AND HUMAN SERVICES (CONTINUED) INDIRECT FOOD ADDITIVES: ADHESIVES AND COMPONENTS OF COATINGS Substances for Use as Components...

  9. 21 CFR 175.230 - Hot-melt strippable food coatings.

    Code of Federal Regulations, 2013 CFR

    2013-04-01

    ... 21 Food and Drugs 3 2013-04-01 2013-04-01 false Hot-melt strippable food coatings. 175.230 Section 175.230 Food and Drugs FOOD AND DRUG ADMINISTRATION, DEPARTMENT OF HEALTH AND HUMAN SERVICES (CONTINUED) FOOD FOR HUMAN CONSUMPTION (CONTINUED) INDIRECT FOOD ADDITIVES: ADHESIVES AND COMPONENTS...

  10. 25 CFR 175.62 - Utility actions pending the appeal process.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ...) If the appeal involves an electric power rate, the rate shall be implemented and remain in effect... Section 175.62 Indians BUREAU OF INDIAN AFFAIRS, DEPARTMENT OF THE INTERIOR LAND AND WATER INDIAN ELECTRIC POWER UTILITIES Appeals § 175.62 Utility actions pending the appeal process. Pending an appeal,...

  11. 25 CFR 175.61 - Appeals to the Interior Board of Indian Appeals.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ... Hearings and Appeals Board of Indian Appeals pursuant to the provisions of 43 CFR part 4, subpart D, except... Section 175.61 Indians BUREAU OF INDIAN AFFAIRS, DEPARTMENT OF THE INTERIOR LAND AND WATER INDIAN ELECTRIC POWER UTILITIES Appeals § 175.61 Appeals to the Interior Board of Indian Appeals. (a) An Area...

  12. 49 CFR 175.25 - Notification at air passenger facilities of hazardous materials restrictions.

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ... 49 Transportation 2 2011-10-01 2011-10-01 false Notification at air passenger facilities of hazardous materials restrictions. 175.25 Section 175.25 Transportation Other Regulations Relating to Transportation PIPELINE AND HAZARDOUS MATERIALS SAFETY ADMINISTRATION, DEPARTMENT OF TRANSPORTATION HAZARDOUS MATERIALS REGULATIONS CARRIAGE BY...

  13. 49 CFR 175.25 - Notification at air passenger facilities of hazardous materials restrictions.

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ... 49 Transportation 2 2013-10-01 2013-10-01 false Notification at air passenger facilities of hazardous materials restrictions. 175.25 Section 175.25 Transportation Other Regulations Relating to Transportation PIPELINE AND HAZARDOUS MATERIALS SAFETY ADMINISTRATION, DEPARTMENT OF TRANSPORTATION HAZARDOUS MATERIALS REGULATIONS CARRIAGE BY...

  14. 49 CFR 175.25 - Notification at air passenger facilities of hazardous materials restrictions.

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ... 49 Transportation 2 2014-10-01 2014-10-01 false Notification at air passenger facilities of hazardous materials restrictions. 175.25 Section 175.25 Transportation Other Regulations Relating to Transportation PIPELINE AND HAZARDOUS MATERIALS SAFETY ADMINISTRATION, DEPARTMENT OF TRANSPORTATION HAZARDOUS MATERIALS REGULATIONS CARRIAGE BY...

  15. 26 CFR 1.175-1 - Soil and water conservation expenditures; in general.

    Code of Federal Regulations, 2012 CFR

    2012-04-01

    ... 26 Internal Revenue 3 2012-04-01 2012-04-01 false Soil and water conservation expenditures; in... Corporations (continued) § 1.175-1 Soil and water conservation expenditures; in general. Under section 175, a farmer may deduct his soil or water conservation expenditures which do not give rise to a deduction...

  16. 26 CFR 1.175-1 - Soil and water conservation expenditures; in general.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ... 26 Internal Revenue 3 2010-04-01 2010-04-01 false Soil and water conservation expenditures; in... (continued) § 1.175-1 Soil and water conservation expenditures; in general. Under section 175, a farmer may deduct his soil or water conservation expenditures which do not give rise to a deduction for...

  17. 26 CFR 1.175-1 - Soil and water conservation expenditures; in general.

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ... 26 Internal Revenue 3 2011-04-01 2011-04-01 false Soil and water conservation expenditures; in... Corporations (continued) § 1.175-1 Soil and water conservation expenditures; in general. Under section 175, a farmer may deduct his soil or water conservation expenditures which do not give rise to a deduction...

  18. 26 CFR 1.175-1 - Soil and water conservation expenditures; in general.

    Code of Federal Regulations, 2014 CFR

    2014-04-01

    ... 26 Internal Revenue 3 2014-04-01 2014-04-01 false Soil and water conservation expenditures; in... Corporations (continued) § 1.175-1 Soil and water conservation expenditures; in general. Under section 175, a farmer may deduct his soil or water conservation expenditures which do not give rise to a deduction...

  19. 26 CFR 1.175-3 - Definition of “the business of farming.”

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ... 26 Internal Revenue 3 2010-04-01 2010-04-01 false Definition of âthe business of farming.â 1.175-3...-3 Definition of “the business of farming.” The method described in section 175 is available only to a taxpayer engaged in “the business of farming”. A taxpayer is engaged in the business of farming...

  20. 26 CFR 1.175-4 - Definition of “land used in farming.”

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ... 26 Internal Revenue 3 2010-04-01 2010-04-01 false Definition of âland used in farming.â 1.175-4...-4 Definition of “land used in farming.” (a) Requirements. For purposes of section 175, the term land used in farming means land which is used in the business of farming and which meets both of...