Sample records for a-570-832 pure magnesium

  1. 76 FR 1403 - Pure Magnesium From the People's Republic of China: Extension of Time Limit for the Preliminary...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-01-10

    ... DEPARTMENT OF COMMERCE International Trade Administration [A-570-832] Pure Magnesium From the... order on pure magnesium from the People's Republic of China (``PRC''). See Antidumping or Countervailing... 23236 (May 3, 2010). Respondent, Tianjin Magnesium International Co., Ltd. (``TMI''), requested a review...

  2. 75 FR 2108 - Pure Magnesium from the People's Republic of China: Extension of Time for the Preliminary Results...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-01-14

    ... DEPARTMENT OF COMMERCE International Trade Administration [A-570-832] Pure Magnesium from the... order on pure magnesium from the People's Republic of China (``PRC''). See Antidumping or Countervailing... 20278 (May 1, 2009). Respondent, Tianjin Magnesium International Co., Ltd. (``TMI''), requested a review...

  3. 76 FR 59111 - Pure Magnesium From the People's Republic of China: Extension of Time for the Final Results of...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-09-23

    ... DEPARTMENT OF COMMERCE International Trade Administration [A-570-832] Pure Magnesium From the People's Republic of China: Extension of Time for the Final Results of the Antidumping Duty... administrative review for the period May 1, 2009, to April 30, 2010. See Pure Magnesium from the People's...

  4. 75 FR 63440 - Pure Magnesium From the People's Republic of China: Extension of Time for the Final Results of...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-10-15

    ... DEPARTMENT OF COMMERCE International Trade Administration [A-570-832] Pure Magnesium From the People's Republic of China: Extension of Time for the Final Results of the Antidumping Duty... of this administrative review for the period May 1, 2008, to April 30, 2009. See Pure Magnesium from...

  5. 76 FR 1404 - Pure Magnesium in Granular Form From the People's Republic of China: Rescission of Changed...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-01-10

    ... DEPARTMENT OF COMMERCE International Trade Administration [A-570-864] Pure Magnesium in Granular... duty order \\1\\ on pure magnesium in granular form from the People's Republic of China (``PRC'') to... circumstances review. The Department is now rescinding this CCR. \\1\\ See Antidumping Duty Order: Pure Magnesium...

  6. Isotopically pure magnesium isotope-24 is prepared from magnesium-24 oxide

    NASA Technical Reports Server (NTRS)

    Chellew, N. R.; Schilb, J. D.; Steunenberg, R. K.

    1968-01-01

    Apparatus is used to prepare isotopically pure magnesium isotope-24, suitable for use in neutron scattering and polarization experiments. The apparatus permits thermal reduction of magnesium-24 oxide with aluminum and calcium oxide, and subsequent vaporization of the product metal in vacuum. It uses a resistance-heated furnace tube and cap assembly.

  7. Effects of impurities on the biodegradation behavior of pure magnesium

    NASA Astrophysics Data System (ADS)

    Lee, Ji-Young; Han, Gilsoo; Kim, Yu-Chan; Byun, Ji-Young; Jang, Jae-il; Seok, Hyun-Kwang; Yang, Seok-Jo

    2009-12-01

    The corrosion behavior of pure magnesium that has different content ratio of impurities (such as Fe/Mn ratio) in Hanks' solution was investigated in order to tailor the lifetime of biodegradable implant made of pure magnesium. Two distinct stages of corrosion were observed: a slow corrosion rate stage and a subsequent fast corrosion rate stage. The first stage was characterized by uniform corrosion that produced magnesium hydroxide and calcium phosphate film on a magnesium surface, resulting in a slow corrosion rate. The second stage with an abrupt increase in the corrosion rate was induced by Fe precipitates and was stimulated by an increase in the Fe/Mn ratio. This corrosion was developed to a preferred crystallographic pitting corrosion where the pits propagated along the preferred crystallographic plane and several layers of Mg planes with narrow interplanar space remained uncorroded. From this study, it is expected that the lifetime of the biodegradable implant made of pure Mg can be tailored by controlling the amount and ratio of the impurities.

  8. 76 FR 69284 - Pure Magnesium From China

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-11-08

    ... China Determination On the basis of the record \\1\\ developed in the subject five-year review, the United... China would be likely to lead to continuation or recurrence of material injury to an industry in the...), entitled Pure Magnesium from China: Investigation No. 731-TA-696 (Third Review). Issued: November 2, 2011...

  9. 76 FR 62091 - Pure Magnesium From China; Scheduling of an Expedited Five-Year Review Concerning the Antidumping...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-10-06

    ... INTERNATIONAL TRADE COMMISSION [Investigation No. 731-TA-696 (Third Review)] Pure Magnesium From... Magnesium From China AGENCY: United States International Trade Commission. ACTION: Notice. SUMMARY: The... duty order on pure magnesium from China would be likely to lead to continuation or recurrence of...

  10. 76 FR 7813 - Amended Final Results of the 2008-2009 Antidumping Duty Administrative Review: Pure Magnesium...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-02-11

    ... magnesium and produced by decomposing raw materials into magnesium metal. Pure primary magnesium is used... products (including, but not limited to, butt ends, stubs, crowns and crystals) with the following primary magnesium contents: (1) Products that contain at least 99.95% primary magnesium, by weight (generally...

  11. Effects of grain size on the corrosion resistance of pure magnesium by cooling rate-controlled solidification

    NASA Astrophysics Data System (ADS)

    Liu, Yichi; Liu, Debao; You, Chen; Chen, Minfang

    2015-09-01

    The aim of this study was to investigate the effect of grain size on the corrosion resistance of pure magnesium developed for biomedical applications. High-purity magnesium samples with different grain size were prepared by the cooling rate-controlled solidification. Electrochemical and immersion tests were employed to measure the corrosion resistance of pure magnesium with different grain size. The electrochemical polarization curves indicated that the corrosion susceptibility increased as the grain size decrease. However, the electrochemical impedance spectroscopy (EIS) and immersion tests indicated that the corrosion resistance of pure magnesium is improved as the grain size decreases. The improvement in the corrosion resistance is attributed to refine grain can produce more uniform and density film on the surface of sample.

  12. 76 FR 53408 - Pure Magnesium From the People's Republic of China: Rescission of Antidumping Duty Administrative...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-08-26

    ... of the Order Merchandise covered by the order is pure magnesium regardless of chemistry, form or size... primary magnesium (including turnings, chips and powder) having a maximum physical dimension (i.e., length...

  13. 76 FR 72172 - Continuation of Antidumping Duty Order: Pure Magnesium From the People's Republic of China

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-11-22

    ... Canada by Timminco, Ltd. from pure magnesium of Chinese origin are not within the scope of order. See Memorandum regarding Final Ruling in the Scope Inquiry on Russian and Chinese Magnesium Processed in Canada... Memorandum regarding Final Ruling in the Scope Inquiry on Chinese Magnesium Processed in France, dated...

  14. Electrodeposition of magnesium and magnesium/aluminum alloys

    DOEpatents

    Mayer, Anton

    1988-01-01

    Electrolytes and plating solutions for use in processes for electroplating and electroforming pure magnesium and alloys of aluminum and magnesium and also electrodeposition processes. An electrolyte of this invention is comprised of an alkali metal fluoride or a quaternary ammonium halide, dimethyl magnesium and/or diethyl magnesium, and triethyl aluminum and/or triisobutyl aluminum. An electrolyte may be dissolved in an aromatic hydrocarbon solvent to form a plating solution. The proportions of the component compounds in the electrolyte are varied to produce essentially pure magnesium or magnesium/aluminum alloys having varying selected compositions.

  15. Electrodeposition of magnesium and magnesium/aluminum alloys

    DOEpatents

    Mayer, A.

    1988-01-21

    Electrolytes and plating solutions for use in processes for electroplating and electroforming pure magnesium and alloys of aluminum and magnesium and also electrodeposition processes. An electrolyte of this invention is comprised of an alkali metal fluoride or a quaternary ammonium halide, dimethyl magnesium and/or diethyl magnesium, and triethyl aluminum and/or triisobutyl aluminum. An electrolyte may be dissolved in an aromatic hydrocarbon solvent to form a plating solution. The proportions of the component compounds in the electrolyte are varied to produce essentially pure magnesium or magnesium/aluminum alloys having varying selected compositions.

  16. Biodegradable polymer for sealing porous PEO layer on pure magnesium: An in vitro degradation study

    NASA Astrophysics Data System (ADS)

    Alabbasi, Alyaa; Mehjabeen, Afrin; Kannan, M. Bobby; Ye, Qingsong; Blawert, Carsten

    2014-05-01

    An attempt was made to seal the porous silicate-based plasma electrolytic oxidation (PEO) layer on pure magnesium (Mg) with a biodegradable polymer, poly(L-lactide) (PLLA), to delay the localized degradation of magnesium-based implants in body fluid for better in-service mechanical integrity. Firstly, a silicate-based PEO coating on pure magnesium was performed using a pulsed constant current method. In order to seal the pores in the PEO layer, PLLA was coated using a two-step spin coating method. The performance of the PEO-PLLA Mg was evaluated using electrochemical impedance spectroscopy (EIS) and potentiodynamic polarization. The EIS results showed that the polarization resistance (Rp) of the PEO-PLLA Mg was close to two orders of magnitude higher than that of the PEO Mg. While the corrosion current density (icorr) of the pure Mg was reduced by 65% with the PEO coating, the PEO-PLLA coating reduced the icorr by almost 100%. As expected, the Rp of the PEO-PLLA Mg decreased with increase in exposure time. However, it was noted that the Rp of the PEO-PLLA Mg even after 100 h was six times higher than that of the PEO Mg after 48 h exposure, and did not show any visible localized attack.

  17. Laser Surface Alloying of Copper, Manganese, and Magnesium with Pure Aluminum Substrate

    NASA Astrophysics Data System (ADS)

    Jiru, Woldetinsay G.; Sankar, M. Ravi; Dixit, Uday S.

    2016-03-01

    Laser surface alloying is one of the recent technologies used in the manufacturing sector for improving the surface properties of the metals. Light weight materials like aluminum alloys, titanium alloys, and magnesium alloys are used in the locomotive, aerospace, and structural applications. In the present work, an experimental study was conducted to improve the surface hardness of commercially pure aluminum plate. CO2 laser is used to melt pre-placed powders of pure copper, manganese, and magnesium. Microstructure of alloyed surface was analyzed using optical microscope. The best surface alloying was obtained at the optimum values of laser parameters, viz., laser power, scan speed, and laser beam diameter. In the alloyed region, microhardness increased from 30 HV0.5 to 430 HV0.5, while it was 60 HV0.5 in the heat-affected region. Tensile tests revealed some reduction in the strength and total elongation due to alloying. On the other hand, corrosion resistance improved.

  18. 76 FR 62040 - Pure Magnesium From the People's Republic of China: Final Results of Expedited Third Sunset...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-10-06

    ... billets produced in Canada by Timminco, Ltd. from pure magnesium of Chinese origin are not within the scope of Order. See Memorandum regarding Final Ruling in the Scope Inquiry on Russian and Chinese... scope of the Order. See Memorandum regarding Final Ruling in the Scope Inquiry on Chinese Magnesium...

  19. Rates of in vivo (arterial) and in vitro biocorrosion for pure magnesium.

    PubMed

    Bowen, Patrick K; Drelich, Adam; Drelich, Jaroslaw; Goldman, Jeremy

    2015-01-01

    The development of magnesium-based materials for bioabsorbable stents relies heavily on corrosion testing by immersion in pseudophysiological solutions, where magnesium degrades faster than it does in vivo. The quantitative difference in corrosion kinetics in vitro and in vivo is largely unknown, but, if determined, would help reduce dependence on animal models. In order to create a quantitative in vitro-in vivo correlation based on an accepted measure of corrosion (penetration rate), commercially pure magnesium wires were corroded in vivo in the abdominal aortas of rats for 5-32 days, and in vitro for up to 14 days using Dulbecco's modified eagle medium. Cross-sectioning, scanning electron microscopy, image analysis, a modified penetration rate tailored to degraded wires, and empirical modeling were used to analyze the corroded specimens. In vitro penetration rates were consistently higher than comparable in vivo rates by a factor of 1.2-1.9× (±0.2×). For a sample <20% corroded, an approximate in vitro-in vivo multiplier of 1.3 ± 0.2× was applied, whereas a multiplier of 1.8 ± 0.2× became appropriate when the magnesium specimen was 25-35% degraded. © 2014 Wiley Periodicals, Inc.

  20. Super-formable pure magnesium at room temperature.

    PubMed

    Zeng, Zhuoran; Nie, Jian-Feng; Xu, Shi-Wei; H J Davies, Chris; Birbilis, Nick

    2017-10-17

    Magnesium, the lightest structural metal, is difficult to form at room temperature due to an insufficient number of deformation modes imposed by its hexagonal structure and a strong texture developed during thermomechanical processes. Although appropriate alloying additions can weaken the texture, formability improvement is limited because alloying additions do not fundamentally alter deformation modes. Here we show that magnesium can become super-formable at room temperature without alloying. Despite possessing a strong texture, magnesium can be cold rolled to a strain at least eight times that possible in conventional processing. The resultant cold-rolled sheet can be further formed without cracking due to grain size reduction to the order of one micron and inter-granular mechanisms becoming dominant, rather than the usual slip and twinning. These findings provide a pathway for developing highly formable products from magnesium and other hexagonal metals that are traditionally difficult to form at room temperature.Replacing steel or aluminium vehicle parts with magnesium would result in reduced emissions, but shaping magnesium without cracking remains challenging. Here, the authors successfully extrude and roll textured magnesium into ductile foil at low temperatures by activating intra-granular mechanisms.

  1. In vitro corrosion of pure magnesium and AZ91 alloy—the influence of thin electrolyte layer thickness

    PubMed Central

    Zeng, Rong-Chang; Qi, Wei-Chen; Zhang, Fen; Li, Shuo-Qi

    2016-01-01

    In vivo degradation predication faces a huge challenge via in vitro corrosion test due to the difficulty for mimicking the complicated microenvironment with various influencing factors. A thin electrolyte layer (TEL) cell for in vitro corrosion of pure magnesium and AZ91 alloy was presented to stimulate the in vivo corrosion in the micro-environment built by the interface of the implant and its neighboring tissue. The results demonstrated that the in vivo corrosion of pure Mg and the AZ91 alloy was suppressed under TEL condition. The AZ91 alloy was more sensitive than pure Mg to the inhibition of corrosion under a TEL thickness of less than 200 µm. The TEL thickness limited the distribution of current, and thus localized corrosion was more preferred to occur under TEL condition than in bulk solution. The TEL cell might be an appropriate approach to simulating the in vivo degradation of magnesium and its alloys. PMID:26816655

  2. A Study on Factors Affecting the Degradation of Magnesium and a Magnesium-Yttrium Alloy for Biomedical Applications

    PubMed Central

    Johnson, Ian; Liu, Huinan

    2013-01-01

    Controlling degradation of magnesium or its alloys in physiological saline solutions is essential for their potential applications in clinically viable implants. Rapid degradation of magnesium-based materials reduces the mechanical properties of implants prematurely and severely increases alkalinity of the local environment. Therefore, the objective of this study is to investigate the effects of three interactive factors on magnesium degradation, specifically, the addition of yttrium to form a magnesium-yttrium alloy versus pure magnesium, the metallic versus oxide surfaces, and the presence versus absence of physiological salt ions in the immersion solution. In the immersion solution of phosphate buffered saline (PBS), the magnesium-yttrium alloy with metallic surface degraded the slowest, followed by pure magnesium with metallic or oxide surfaces, and the magnesium-yttrium alloy with oxide surface degraded the fastest. However, in deionized (DI) water, the degradation rate showed a different trend. Specifically, pure magnesium with metallic or oxide surfaces degraded the slowest, followed by the magnesium-yttrium alloy with oxide surface, and the magnesium-yttrium alloy with metallic surface degraded the fastest. Interestingly, only magnesium-yttrium alloy with metallic surface degraded slower in PBS than in DI water, while all the other samples degraded faster in PBS than in DI water. Clearly, the results showed that the alloy composition, presence or absence of surface oxide layer, and presence or absence of physiological salt ions in the immersion solution all influenced the degradation rate and mode. Moreover, these three factors showed statistically significant interactions. This study revealed the complex interrelationships among these factors and their respective contributions to degradation for the first time. The results of this study not only improved our understanding of magnesium degradation in physiological environment, but also presented the key

  3. 49 CFR 236.832 - Train.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... 49 Transportation 4 2010-10-01 2010-10-01 false Train. 236.832 Section 236.832 Transportation Other Regulations Relating to Transportation (Continued) FEDERAL RAILROAD ADMINISTRATION, DEPARTMENT OF... OF SIGNAL AND TRAIN CONTROL SYSTEMS, DEVICES, AND APPLIANCES Definitions § 236.832 Train. A...

  4. 49 CFR 236.832 - Train.

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ... 49 Transportation 4 2011-10-01 2011-10-01 false Train. 236.832 Section 236.832 Transportation Other Regulations Relating to Transportation (Continued) FEDERAL RAILROAD ADMINISTRATION, DEPARTMENT OF... OF SIGNAL AND TRAIN CONTROL SYSTEMS, DEVICES, AND APPLIANCES Definitions § 236.832 Train. A...

  5. 25 CFR 83.2 - Purpose.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ... 25 Indians 1 2010-04-01 2010-04-01 false Purpose. 83.2 Section 83.2 Indians BUREAU OF INDIAN... GROUP EXISTS AS AN INDIAN TRIBE § 83.2 Purpose. The purpose of this part is to establish a departmental... of tribal existence by the Department is a prerequisite to the protection, services, and benefits of...

  6. 25 CFR 83.2 - Purpose.

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ... 25 Indians 1 2011-04-01 2011-04-01 false Purpose. 83.2 Section 83.2 Indians BUREAU OF INDIAN... GROUP EXISTS AS AN INDIAN TRIBE § 83.2 Purpose. The purpose of this part is to establish a departmental... of tribal existence by the Department is a prerequisite to the protection, services, and benefits of...

  7. 4 CFR 83.2 - Administration.

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ... 4 Accounts 1 2010-01-01 2010-01-01 false Administration. 83.2 Section 83.2 Accounts GOVERNMENT ACCOUNTABILITY OFFICE RECORDS PRIVACY PROCEDURES FOR PERSONNEL RECORDS § 83.2 Administration. The administration of this part is the duty and responsibility of the Director, Personnel, U.S. Government...

  8. 4 CFR 83.2 - Administration.

    Code of Federal Regulations, 2012 CFR

    2012-01-01

    ... 4 Accounts 1 2012-01-01 2012-01-01 false Administration. 83.2 Section 83.2 Accounts GOVERNMENT ACCOUNTABILITY OFFICE RECORDS PRIVACY PROCEDURES FOR PERSONNEL RECORDS § 83.2 Administration. The administration of this part is the duty and responsibility of the Director, Personnel, U.S. Government...

  9. 4 CFR 83.2 - Administration.

    Code of Federal Regulations, 2013 CFR

    2013-01-01

    ... 4 Accounts 1 2013-01-01 2013-01-01 false Administration. 83.2 Section 83.2 Accounts GOVERNMENT ACCOUNTABILITY OFFICE RECORDS PRIVACY PROCEDURES FOR PERSONNEL RECORDS § 83.2 Administration. The administration of this part is the duty and responsibility of the Director, Personnel, U.S. Government...

  10. 4 CFR 83.2 - Administration.

    Code of Federal Regulations, 2014 CFR

    2014-01-01

    ... 4 Accounts 1 2014-01-01 2013-01-01 true Administration. 83.2 Section 83.2 Accounts GOVERNMENT ACCOUNTABILITY OFFICE RECORDS PRIVACY PROCEDURES FOR PERSONNEL RECORDS § 83.2 Administration. The administration of this part is the duty and responsibility of the Director, Personnel, U.S. Government...

  11. 4 CFR 83.2 - Administration.

    Code of Federal Regulations, 2011 CFR

    2011-01-01

    ... 4 Accounts 1 2011-01-01 2011-01-01 false Administration. 83.2 Section 83.2 Accounts GOVERNMENT ACCOUNTABILITY OFFICE RECORDS PRIVACY PROCEDURES FOR PERSONNEL RECORDS § 83.2 Administration. The administration of this part is the duty and responsibility of the Director, Personnel, U.S. Government...

  12. 48 CFR 832.006-4 - Procedures.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... 48 Federal Acquisition Regulations System 5 2010-10-01 2010-10-01 false Procedures. 832.006-4 Section 832.006-4 Federal Acquisition Regulations System DEPARTMENT OF VETERANS AFFAIRS GENERAL CONTRACTING REQUIREMENTS CONTRACT FINANCING 832.006-4 Procedures. (a) Any recommendation from a VA employee...

  13. 75 FR 13489 - Magnesium Metal from the People's Republic of China: Extension of Time for the Preliminary...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-03-22

    ... DEPARTMENT OF COMMERCE International Trade Administration A-570-896 Magnesium Metal from the... order on magnesium metal from the People's Republic of China (``PRC'').\\1\\ Respondent, Tianjin Magnesium International Co., Ltd. (``TMI''), requested a review on April 27, 2009, and Petitioner, US Magnesium LLC (``US...

  14. 76 FR 57021 - Magnesium Metal From the People's Republic of China: Rescission of Antidumping Duty...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-09-15

    ... metals/mischmetal, cryolite, silica/fly ash, magnesium oxide, periclase, ferroalloys, dolomite lime, and... DEPARTMENT OF COMMERCE International Trade Administration [A-570-896] Magnesium Metal From the... initiation of an administrative review of the antidumping duty order on magnesium metal from the People's...

  15. 26 CFR 1.832-1 - Gross income.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ... deposit premiums received, but not assessments, shall be excluded from gross income. Gross income does not... 26 Internal Revenue 8 2010-04-01 2010-04-01 false Gross income. 1.832-1 Section 1.832-1 Internal... TAXES Other Insurance Companies § 1.832-1 Gross income. (a) Gross income as defined in section 832(b)(1...

  16. The Corrosion of Magnesium and of the Magnesium Aluminum Alloys Containing Manganese

    NASA Technical Reports Server (NTRS)

    Boyer, J A

    1927-01-01

    The extensive use of magnesium and its alloys in aircraft has been seriously handicapped by the uncertainties surrounding their resistance to corrosion. This problem has been given intense study by the American Magnesium Corporation and at the request of the Subcommittee on Materials for Aircraft of the National Advisory Committee for Aeronautics this report was prepared on the corrosion of magnesium. The tentative conclusions drawn from the experimental facts of this investigation are as follows: the overvoltage of pure magnesium is quite high. On immersion in salt water the metal corrodes with the liberation of hydrogen until the film of corrosion product lowers the potential to a critical value. When the potential reaches this value it no longer exceeds the theoretical hydrogen potential plus the overvoltage of the metal. Rapid corrosion consequently ceases. When aluminum is added, especially when in large amounts, the overvoltage is decreased and hydrogen plates out at a much lower potential than with pure magnesium. The addition of small amount of manganese raises the overvoltage back to practically that of pure metal, and the film is again negative.

  17. 24 CFR 891.832 - Prohibited relationships.

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ... 24 Housing and Urban Development 4 2011-04-01 2011-04-01 false Prohibited relationships. 891.832 Section 891.832 Housing and Urban Development REGULATIONS RELATING TO HOUSING AND URBAN DEVELOPMENT... § 891.832 Prohibited relationships. Section 891.130 applies, except that in the mixed-finance program...

  18. 24 CFR 891.832 - Prohibited relationships.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ... 24 Housing and Urban Development 4 2010-04-01 2010-04-01 false Prohibited relationships. 891.832 Section 891.832 Housing and Urban Development Regulations Relating to Housing and Urban Development... § 891.832 Prohibited relationships. Section 891.130 applies, except that in the mixed-finance program...

  19. 42 CFR 8.32 - Administrative record.

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ... 42 Public Health 1 2011-10-01 2011-10-01 false Administrative record. 8.32 Section 8.32 Public Health PUBLIC HEALTH SERVICE, DEPARTMENT OF HEALTH AND HUMAN SERVICES GENERAL PROVISIONS CERTIFICATION OF..., and of Adverse Action Regarding Withdrawal of Approval of an Accreditation Body § 8.32 Administrative...

  20. 42 CFR 8.32 - Administrative record.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... 42 Public Health 1 2010-10-01 2010-10-01 false Administrative record. 8.32 Section 8.32 Public Health PUBLIC HEALTH SERVICE, DEPARTMENT OF HEALTH AND HUMAN SERVICES GENERAL PROVISIONS CERTIFICATION OF..., and of Adverse Action Regarding Withdrawal of Approval of an Accreditation Body § 8.32 Administrative...

  1. 32 CFR 700.832 - Environmental pollution.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 32 National Defense 5 2010-07-01 2010-07-01 false Environmental pollution. 700.832 Section 700.832... Commanding Officers in General § 700.832 Environmental pollution. The commanding officer shall cooperate with... environmental pollution. If the requirements of any environmental law cannot be achieved because of operational...

  2. 32 CFR 700.832 - Environmental pollution.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... 32 National Defense 5 2011-07-01 2011-07-01 false Environmental pollution. 700.832 Section 700.832... Commanding Officers in General § 700.832 Environmental pollution. The commanding officer shall cooperate with... environmental pollution. If the requirements of any environmental law cannot be achieved because of operational...

  3. 26 CFR 1.832-3 - Taxable years affected.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ... 26 Internal Revenue 8 2010-04-01 2010-04-01 false Taxable years affected. 1.832-3 Section 1.832-3 Internal Revenue INTERNAL REVENUE SERVICE, DEPARTMENT OF THE TREASURY (CONTINUED) INCOME TAX (CONTINUED) INCOME TAXES Other Insurance Companies § 1.832-3 Taxable years affected. Sections 1.832-1 and 1.832-2 are...

  4. Magnesium Recycling of Partially Oxidized, Mixed Magnesium-Aluminum Scrap through Combined Refining and Solid Oxide Membrane Electrolysis Processes

    DOE Office of Scientific and Technical Information (OSTI.GOV)

    Xiaofei Guan; Peter A. Zink; Uday B. Pal

    2012-01-01

    Pure magnesium (Mg) is recycled from 19g of partially oxidized 50.5wt.% Mg-Aluminum (Al) alloy. During the refining process, potentiodynamic scans (PDS) were performed to determine the electrorefining potential for magnesium. The PDS show that the electrorefining potential increases over time as the magnesium content inside the Mg-Al scrap decreases. Up to 100% percent of magnesium is refined from the Mg-Al scrap by a novel refining process of dissolving magnesium and its oxide into a flux followed by vapor phase removal of dissolved magnesium and subsequently condensing the magnesium vapor. The solid oxide membrane (SOM) electrolysis process is employed in themore » refining system to enable additional recycling of magnesium from magnesium oxide (MgO) in the partially oxidized Mg-Al scrap. The combination of the refining and SOM processes yields 7.4g of pure magnesium.« less

  5. Estimation of calcium and magnesium in serum and urine by atomic absorption spectrophotometry

    PubMed Central

    Thin, Christian G.; Thomson, Patricia A.

    1967-01-01

    A method has been described for the estimation of calcium and magnesium in serum and urine using atomic absorption spectrophotometry. The precision and accuracy of the techniques have been determined and were found to be acceptable. The range of values for calcium and magnesium in the sera of normal adults was found to be: serum calcium (corrected to a specific gravity of 1·026) 8·38-10·08 mg. per 100 ml.; serum magnesium83-2·43 mg. per 100 ml. PMID:5602562

  6. Corrosion Prevention of Steel Reinforcement in 7.5% NaCl Solution using Pure Magnesium Anode

    NASA Astrophysics Data System (ADS)

    Iyer Murthy, Yogesh; Gandhi, Sumit; Kumar, Abhishek

    2018-03-01

    The current work investigates the performance of pure Magnesium on corrosion prevention of steel reinforcements by way of sacrificial anoding. Two set of six steel reinforcements were tested for half-cell potential, weight loss, anode efficiency and tensile strength for each of the sacrificial anodes in a high chloride atmosphere of 7.5% NaCl in tap water. Significant reduction in weight of anode was observed during the initial 12 days. The reduction in weight of steel reinforcements tied with anodes was found to be negligible, while that of reinforcements without anodes was significantly higher. Five distinct zones of corrosion were observed during the test. The tensile strength of steel cathodically protected by Mg alloy anodes was found less affected. It could be concluded that pure Mg anode provides an effective way of corrosion mitigation.

  7. 48 CFR 832.502 - Pre-award matters.

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ... 48 Federal Acquisition Regulations System 5 2014-10-01 2014-10-01 false Pre-award matters. 832.502 Section 832.502 Federal Acquisition Regulations System DEPARTMENT OF VETERANS AFFAIRS GENERAL CONTRACTING REQUIREMENTS CONTRACT FINANCING Progress Payments Based on Costs 832.502 Pre-award matters. ...

  8. 48 CFR 832.502 - Pre-award matters.

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ... 48 Federal Acquisition Regulations System 5 2013-10-01 2013-10-01 false Pre-award matters. 832.502 Section 832.502 Federal Acquisition Regulations System DEPARTMENT OF VETERANS AFFAIRS GENERAL CONTRACTING REQUIREMENTS CONTRACT FINANCING Progress Payments Based on Costs 832.502 Pre-award matters. ...

  9. 48 CFR 832.502 - Pre-award matters.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... 48 Federal Acquisition Regulations System 5 2010-10-01 2010-10-01 false Pre-award matters. 832.502 Section 832.502 Federal Acquisition Regulations System DEPARTMENT OF VETERANS AFFAIRS GENERAL CONTRACTING REQUIREMENTS CONTRACT FINANCING Progress Payments Based on Costs 832.502 Pre-award matters. ...

  10. 48 CFR 832.502 - Pre-award matters.

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ... 48 Federal Acquisition Regulations System 5 2011-10-01 2011-10-01 false Pre-award matters. 832.502 Section 832.502 Federal Acquisition Regulations System DEPARTMENT OF VETERANS AFFAIRS GENERAL CONTRACTING REQUIREMENTS CONTRACT FINANCING Progress Payments Based on Costs 832.502 Pre-award matters. ...

  11. 48 CFR 832.502 - Pre-award matters.

    Code of Federal Regulations, 2012 CFR

    2012-10-01

    ... 48 Federal Acquisition Regulations System 5 2012-10-01 2012-10-01 false Pre-award matters. 832.502 Section 832.502 Federal Acquisition Regulations System DEPARTMENT OF VETERANS AFFAIRS GENERAL CONTRACTING REQUIREMENTS CONTRACT FINANCING Progress Payments Based on Costs 832.502 Pre-award matters. ...

  12. GJ 832c: A Super-Earth in the Habitable Zone

    NASA Astrophysics Data System (ADS)

    Wittenmyer, Robert A.; Tuomi, Mikko; Butler, R. P.; Jones, H. R. A.; Anglada-Escudé, Guillem; Horner, Jonathan; Tinney, C. G.; Marshall, J. P.; Carter, B. D.; Bailey, J.; Salter, G. S.; O'Toole, S. J.; Wright, D.; Crane, J. D.; Schectman, S. A.; Arriagada, P.; Thompson, I.; Minniti, D.; Jenkins, J. S.; Diaz, M.

    2014-08-01

    We report the detection of GJ 832c, a super-Earth orbiting near the inner edge of the habitable zone of GJ 832, an M dwarf previously known to host a Jupiter analog in a nearly circular 9.4 yr orbit. The combination of precise radial-velocity measurements from three telescopes reveals the presence of a planet with a period of 35.68 ± 0.03 days and minimum mass (m sin i) of 5.4 ± 1.0 Earth masses. GJ 832c moves on a low-eccentricity orbit (e = 0.18 ± 0.13) toward the inner edge of the habitable zone. However, given the large mass of the planet, it seems likely that it would possess a massive atmosphere, which may well render the planet inhospitable. Indeed, it is perhaps more likely that GJ 832c is a "super-Venus," featuring significant greenhouse forcing. With an outer giant planet and an interior, potentially rocky planet, the GJ 832 planetary system can be thought of as a miniature version of our own solar system. This paper includes data gathered with the 6.5 m Magellan Telescopes located at the Las Campanas Observatory, Chile.

  13. 26 CFR 1.832-3 - Taxable years affected.

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ... 26 Internal Revenue 8 2011-04-01 2011-04-01 false Taxable years affected. 1.832-3 Section 1.832-3 Internal Revenue INTERNAL REVENUE SERVICE, DEPARTMENT OF THE TREASURY (CONTINUED) INCOME TAX (CONTINUED) INCOME TAXES (CONTINUED) Other Insurance Companies § 1.832-3 Taxable years affected. Sections 1.832-1 and...

  14. 26 CFR 1.832-3 - Taxable years affected.

    Code of Federal Regulations, 2014 CFR

    2014-04-01

    ... 26 Internal Revenue 8 2014-04-01 2014-04-01 false Taxable years affected. 1.832-3 Section 1.832-3 Internal Revenue INTERNAL REVENUE SERVICE, DEPARTMENT OF THE TREASURY (CONTINUED) INCOME TAX (CONTINUED) INCOME TAXES (CONTINUED) Other Insurance Companies § 1.832-3 Taxable years affected. Sections 1.832-1 and...

  15. 26 CFR 1.832-3 - Taxable years affected.

    Code of Federal Regulations, 2012 CFR

    2012-04-01

    ... 26 Internal Revenue 8 2012-04-01 2012-04-01 false Taxable years affected. 1.832-3 Section 1.832-3 Internal Revenue INTERNAL REVENUE SERVICE, DEPARTMENT OF THE TREASURY (CONTINUED) INCOME TAX (CONTINUED) INCOME TAXES (CONTINUED) Other Insurance Companies § 1.832-3 Taxable years affected. Sections 1.832-1 and...

  16. 26 CFR 1.832-3 - Taxable years affected.

    Code of Federal Regulations, 2013 CFR

    2013-04-01

    ... 26 Internal Revenue 8 2013-04-01 2013-04-01 false Taxable years affected. 1.832-3 Section 1.832-3 Internal Revenue INTERNAL REVENUE SERVICE, DEPARTMENT OF THE TREASURY (CONTINUED) INCOME TAX (CONTINUED) INCOME TAXES (CONTINUED) Other Insurance Companies § 1.832-3 Taxable years affected. Sections 1.832-1 and...

  17. Magnesium Recycling of Partially Oxidized, Mixed Magnesium-Aluminum Scrap Through Combined Refining and Solid Oxide Membrane (SOM) Electrolysis Processes

    DOE Office of Scientific and Technical Information (OSTI.GOV)

    Guan, Xiaofei; Zink, Peter; Pal, Uday

    2012-03-11

    Pure magnesium (Mg) is recycled from 19g of partially oxidized 50.5wt.%Mg-Aluminum (Al) alloy. During the refining process, potentiodynamic scans (PDS) were performed to determine the electrorefining potential for magnesium. The PDS show that the electrorefining potential increases over time as the Mg content inside the Mg-Al scrap decreases. Up to 100% percent of magnesium is refined from the Mg-Al scrap by a novel refining process of dissolving magnesium and its oxide into a flux followed by vapor phase removal of dissolved magnesium and subsequently condensing the magnesium vapors in a separate condenser. The solid oxide membrane (SOM) electrolysis process ismore » employed in the refining system to enable additional recycling of magnesium from magnesium oxide (MgO) in the partially oxidized Mg-Al scrap. The combination of the refining and SOM processes yields 7.4g of pure magnesium; could not collect and weigh all of the magnesium recovered.« less

  18. 42 CFR 8.32 - Administrative record.

    Code of Federal Regulations, 2012 CFR

    2012-10-01

    ... 42 Public Health 1 2012-10-01 2012-10-01 false Administrative record. 8.32 Section 8.32 Public Health PUBLIC HEALTH SERVICE, DEPARTMENT OF HEALTH AND HUMAN SERVICES GENERAL PROVISIONS CERTIFICATION OF OPIOID TREATMENT PROGRAMS Procedures for Review of Suspension or Proposed Revocation of OTP Certification...

  19. 42 CFR 8.32 - Administrative record.

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ... 42 Public Health 1 2013-10-01 2013-10-01 false Administrative record. 8.32 Section 8.32 Public Health PUBLIC HEALTH SERVICE, DEPARTMENT OF HEALTH AND HUMAN SERVICES GENERAL PROVISIONS CERTIFICATION OF OPIOID TREATMENT PROGRAMS Procedures for Review of Suspension or Proposed Revocation of OTP Certification...

  20. 42 CFR 8.32 - Administrative record.

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ... 42 Public Health 1 2014-10-01 2014-10-01 false Administrative record. 8.32 Section 8.32 Public Health PUBLIC HEALTH SERVICE, DEPARTMENT OF HEALTH AND HUMAN SERVICES GENERAL PROVISIONS CERTIFICATION OF OPIOID TREATMENT PROGRAMS Procedures for Review of Suspension or Proposed Revocation of OTP Certification...

  1. Bioactive Ca-P coating with self-sealing structure on pure magnesium.

    PubMed

    Gan, Junjie; Tan, Lili; Yang, Ke; Hu, Zhuangqi; Zhang, Qiang; Fan, Xinmin; Li, Yangde; Li, Weirong

    2013-04-01

    Bioactive coatings containing Ca and P with self-sealing structures were fabricated on the surface of pure magnesium using micro-arc oxidation technique (MAO) in a specific calcium hydroxide based electrolyte system. Coatings were prepared at three applied voltages, i.e. 360, 410 and 450 V, and the morphology, chemical composition, corrosion resistance and the degradation properties in Hank's solution of the MAO-coated samples with three different applied voltages were investigated. It was found that all the three coatings showed similar surface morphologies that the majority of micro-pores were filled with compound particles. Both the porous structures and the compound particles were found to contain consistent chemical compositions which were mainly composed of O, Mg, F, Ca and P. Electrochemical tests showed a significant increase in corrosion resistance for the three coatings, meanwhile the coating obtained at 450 V exhibited the superior corrosion resistance owing to the largest coating thickness. The long term immersion tests in Hank's solution also revealed an effective reduction in corrosion rate for the MAO coated samples, and the pH values of the coated samples always maintained a lower level. Besides, all the three coatings were subjected to a mild and uniform degradation, while the coating obtained at 360 V showed a relatively obvious degradation characteristic and appreciable Ca and P contents on the surfaces of the three coatings were observed after immersion in Hank's solution. The results of the present study confirmed that the MAO coatings containing bioactive Ca and P elements with self-sealing structures could significantly enhance the corrosion resistance of magnesium substrate in Hanks' solution with great potential for medical application.

  2. Pure Maple Syrup: Nutritive Value.

    PubMed

    Leaf, A L

    1964-02-28

    Variations in concentrations of sugar, nitrogen, phosphorus, potassium, calcium, and magnesium of sap from sugar maple (Acer saccharum, Marsh.) trees are related to the time of sap collection and result in variation of the same components in pure maple syrup. Thirty milliliters (one fluid ounce) of pure maple syrup may contain 3 to 6 mg of phosphorus, 10 to 30 mg of potassium, 40 to 80 mg of calcium, and 4 to 25 mg of magnesium.

  3. 26 CFR 1.832-4 - Gross income.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ... TAXES Other Insurance Companies § 1.832-4 Gross income. (a)(1) Gross income as defined in section 832(b... the exhibit, however, do not reflect an insurance company's income as defined in the Code. By reason... amounts payable to customers under the applicable portion of such arrangements as losses incurred...

  4. 75 FR 50992 - Magnesium Metal from the People's Republic of China: Extension of Time for the Final Results of...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-08-18

    ... DEPARTMENT OF COMMERCE International Trade Administration [A-570-896] Magnesium Metal from the People's Republic of China: Extension of Time for the Final Results of the Antidumping Duty... administrative review for the period April 1, 2008, to March 31, 2009. See Magnesium Metal from the People's...

  5. 26 CFR 1.832-4 - Gross income.

    Code of Federal Regulations, 2013 CFR

    2013-04-01

    ... TAXES (CONTINUED) Other Insurance Companies § 1.832-4 Gross income. (a)(1) Gross income as defined in... under section 61, except that in the case of a mutual fire insurance company described in section 831(a... gross income. Section 832(b)(1)(D) provides that in the case of a mutual fire or flood insurance company...

  6. 26 CFR 1.832-4 - Gross income.

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ... TAXES (CONTINUED) Other Insurance Companies § 1.832-4 Gross income. (a)(1) Gross income as defined in... under section 61, except that in the case of a mutual fire insurance company described in section 831(a... gross income. Section 832(b)(1)(D) provides that in the case of a mutual fire or flood insurance company...

  7. 26 CFR 1.832-4 - Gross income.

    Code of Federal Regulations, 2012 CFR

    2012-04-01

    ... TAXES (CONTINUED) Other Insurance Companies § 1.832-4 Gross income. (a)(1) Gross income as defined in... under section 61, except that in the case of a mutual fire insurance company described in section 831(a... gross income. Section 832(b)(1)(D) provides that in the case of a mutual fire or flood insurance company...

  8. 26 CFR 1.832-4 - Gross income.

    Code of Federal Regulations, 2014 CFR

    2014-04-01

    ... TAXES (CONTINUED) Other Insurance Companies § 1.832-4 Gross income. (a)(1) Gross income as defined in... under section 61, except that in the case of a mutual fire insurance company described in section 831(a... gross income. Section 832(b)(1)(D) provides that in the case of a mutual fire or flood insurance company...

  9. 48 CFR 832.7002-1 - Data transmission.

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ... 48 Federal Acquisition Regulations System 5 2013-10-01 2013-10-01 false Data transmission. 832... CONTRACTING REQUIREMENTS CONTRACT FINANCING Electronic Invoicing Requirements 832.7002-1 Data transmission... conforms to the X12 electronic data interchange (EDI) formats established by the Accredited Standards...

  10. 48 CFR 832.7002-1 - Data transmission.

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ... 48 Federal Acquisition Regulations System 5 2014-10-01 2014-10-01 false Data transmission. 832... CONTRACTING REQUIREMENTS CONTRACT FINANCING Electronic Invoicing Requirements 832.7002-1 Data transmission... conforms to the X12 electronic data interchange (EDI) formats established by the Accredited Standards...

  11. 48 CFR 832.502-2 - Contract finance office clearance.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... 48 Federal Acquisition Regulations System 5 2010-10-01 2010-10-01 false Contract finance office clearance. 832.502-2 Section 832.502-2 Federal Acquisition Regulations System DEPARTMENT OF VETERANS AFFAIRS GENERAL CONTRACTING REQUIREMENTS CONTRACT FINANCING Progress Payments Based on Costs 832.502-2 Contract finance office clearance. Contracting...

  12. Tension-compression-tension tertiary twins in coarse-grained polycrystalline pure magnesium at room temperature

    DOE PAGES

    Yu, Qin; Jiang, Yanyao; Wang, Jian

    2015-04-07

    Using electron backscatter diffraction, the microstructural features of tension–compression–tension (T–C–T) tertiary twins are studied in coarse-grained pure polycrystalline magnesium subjected to monotonic compression along the extrusion direction in ambient air. T–C–T tertiary twins are developed due to the formation of a compression–tension double twin inside a primary tension twin. All the observed T–C–T twin variants are of T iC jT j type. T iC i+1T i+1 (or T iC i–1T i–1) variants are observed more frequently than T iC i+2T i+2 (or T iC i–2T i–2) variants. Moreover, the number of tertiary twin lamellae increases with the applied compressive strain.

  13. 42 CFR 431.832 - Reporting requirements for claims processing assessment systems.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... assessment systems. 431.832 Section 431.832 Public Health CENTERS FOR MEDICARE & MEDICAID SERVICES... GENERAL ADMINISTRATION Quality Control Medicaid Quality Control (mqc) Claims Processing Assessment System § 431.832 Reporting requirements for claims processing assessment systems. (a) The agency must submit...

  14. Atomistic modeling of grain boundary behavior under shear conditions in magnesium and magnesium-based binary alloys

    NASA Astrophysics Data System (ADS)

    Nahhas, M. K.; Groh, S.

    2018-02-01

    In this study, the structure, the energetic, and the strength of a { 10 1 bar 1 } < 11 2 bar 0 > symmetric tilt grain boundary in magnesium and magnesium binary alloys were analyzed in the framework of (semi-)empirical potentials. Following a systematic investigation of the transferability and accuracy of the interatomic potentials, atomistic calculations of the grain boundary energy, the grain boundary sliding energy, and the grain boundary strength were performed in pure magnesium and in binary MgX alloys (X = Al, Ca, Gd, Li, Sn, Y, Ag, Nd, and Pb). The data gained in this study were analyzed to identify the most critical material parameters controlling the strength of the grain boundary, and their consequence on atomic shuffling motions occurring at the grain boundary. From the methodology perspective, the role of in-plane and out-of plane relaxation on the grain boundary sliding energy curves was investigated. In pure magnesium, the results showed that in-plane relaxation is critical in activating b2{ 10 1 bar 1 } twinning dislocation resulting in grain boundary migration. In the alloy systems, however, grain boundary migration was disabled as a consequence of the pinning of the grain boundary by segregated elements. Finally, while the grain boundary energy, the shape of the grain boundary sliding energy curves, and the grain boundary sliding energy are critical parameters controlling the grain boundary strength in pure magnesium, only the grain boundary energy and the segregation energy of the alloying elements at the grain boundary were identified as critical material parameters in the alloys system.

  15. A review of catalyst-enhanced magnesium hydride as a hydrogen storage material

    NASA Astrophysics Data System (ADS)

    Webb, C. J.

    2015-09-01

    Magnesium hydride remains an attractive hydrogen storage material due to the high hydrogen capacity and low cost of production. A high activation energy and poor kinetics at practical temperatures for the pure material have driven research into different additives to improve the sorption properties. This review details the development of catalytic additives and their effect on the activation energy, kinetics and thermodynamic properties of magnesium hydride.

  16. The High Strain Rate Deformation Behavior of High Purity Magnesium and AZ31B Magnesium Alloy

    NASA Astrophysics Data System (ADS)

    Livescu, Veronica; Cady, Carl M.; Cerreta, Ellen K.; Henrie, Benjamin L.; Gray, George T.

    The deformation in compression of pure magnesium and AZ31B magnesium alloy, both with a strong basal pole texture, has been investigated as a function of temperature, strain rate, and specimen orientation. The mechanical response of both metals is highly dependent upon the orientation of loading direction with respect to the basal pole. Specimens compressed along the basal pole direction have a high sensitivity to strain rate and temperature and display a concave down work hardening behavior. Specimens loaded perpendicularly to the basal pole have a yield stress that is relatively insensitive to strain rate and temperature and a work hardening behavior that is parabolic and then linearly upwards. Both specimen orientations display a mechanical response that is sensitive to temperature and strain rate. Post mortem characterization of the pure magnesium was conducted on a subset of specimens to determine the microstructural and textural evolution during deformation and these results are correlated with the observed work hardening behavior and strain rate sensitivities were calculated.

  17. Growth mechanism of extension twin variants during annealing of pure magnesium: An ‘ex situ’ electron backscattered diffraction investigation

    DOE Office of Scientific and Technical Information (OSTI.GOV)

    Sabat, R.K.

    Pure magnesium was subjected to plastic deformation through CSM (continuous stiffness measurement) indentation followed by annealing at 200 °C for 30 min. Nucleation of no new grains was observed neither at the twin–twin intersections nor at the multiple twin variants of a grain after annealing. Significant growth of off-basal twin orientation compared to basal twin orientation was observed in the sample after annealing and is attributed to the partial coherent nature of twin boundary in the later case. Further, growth of twins was independent of the strain distribution between parent and twinned grains. - Highlights: • An ‘ex situ’ EBSDmore » of pure Mg during annealing was investigated. • Nucleation of no new grains was observed. • Significant growth of off-basal twin orientation was observed. • Growth of twins may be attributed to the partial coherent nature of twin boundary.« less

  18. 77 FR 59979 - Pure Magnesium (Granular) From China

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-10-01

    ... (Granular) From China Determination On the basis of the record \\1\\ developed in the subject five-year review... magnesium (granular) from China would be likely to lead to continuation or recurrence of material injury to... China: Investigation No.731-TA- 895 (Second Review). Issued: September 25, 2012. By order of the...

  19. 48 CFR 832.502-2 - Contract finance office clearance.

    Code of Federal Regulations, 2012 CFR

    2012-10-01

    ... 48 Federal Acquisition Regulations System 5 2012-10-01 2012-10-01 false Contract finance office clearance. 832.502-2 Section 832.502-2 Federal Acquisition Regulations System DEPARTMENT OF VETERANS AFFAIRS... finance office clearance. Contracting officers must obtain approval from the DSPE before taking the...

  20. 48 CFR 832.502-2 - Contract finance office clearance.

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ... 48 Federal Acquisition Regulations System 5 2013-10-01 2013-10-01 false Contract finance office clearance. 832.502-2 Section 832.502-2 Federal Acquisition Regulations System DEPARTMENT OF VETERANS AFFAIRS... finance office clearance. Contracting officers must obtain approval from the DSPE before taking the...

  1. 48 CFR 832.502-2 - Contract finance office clearance.

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ... 48 Federal Acquisition Regulations System 5 2014-10-01 2014-10-01 false Contract finance office clearance. 832.502-2 Section 832.502-2 Federal Acquisition Regulations System DEPARTMENT OF VETERANS AFFAIRS... finance office clearance. Contracting officers must obtain approval from the DSPE before taking the...

  2. 48 CFR 832.502-2 - Contract finance office clearance.

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ... 48 Federal Acquisition Regulations System 5 2011-10-01 2011-10-01 false Contract finance office clearance. 832.502-2 Section 832.502-2 Federal Acquisition Regulations System DEPARTMENT OF VETERANS AFFAIRS... finance office clearance. Contracting officers must obtain approval from the DSPE before taking the...

  3. In Vitro Degradation of Pure Magnesium―The Effects of Glucose and/or Amino Acid

    PubMed Central

    Wang, Yu; Cui, Lan-Yue; Li, Shuo-Qi; Zou, Yu-Hong; Han, En-Hou

    2017-01-01

    The influences of glucose and amino acid (L-cysteine) on the degradation of pure magnesium have been investigated using SEM, XRD, Fourier transformed infrared (FTIR), X-ray photoelectron spectroscopy (XPS), polarization and electrochemical impedance spectroscopy and immersion tests. The results demonstrate that both amino acid and glucose inhibit the corrosion of pure magnesium in saline solution, whereas the presence of both amino acid and glucose accelerates the corrosion rate of pure magnesium. This may be due to the formation of -C=N- bonding (a functional group of Schiff bases) between amino acid and glucose, which restricts the formation of the protective Mg(OH)2 precipitates. PMID:28773085

  4. X-ray photoelectron spectroscopy (XPS) investigation of the surface film on magnesium powders.

    PubMed

    Burke, Paul J; Bayindir, Zeynel; Kipouros, Georges J

    2012-05-01

    Magnesium (Mg) and its alloys are attractive for use in automotive and aerospace applications because of their low density and good mechanical properties. However, difficulty in forming magnesium and the limited number of available commercial alloys limit their use. Powder metallurgy may be a suitable solution for forming near-net-shape parts. However, sintering pure magnesium presents difficulties due to surface film that forms on the magnesium powder particles. The present work investigates the composition of the surface film that forms on the surface of pure magnesium powders exposed to atmospheric conditions and on pure magnesium powders after compaction under uniaxial pressing at a pressure of 500 MPa and sintering under argon at 600 °C for 40 minutes. Initially, focused ion beam microscopy was utilized to determine the thickness of the surface layer of the magnesium powder and found it to be ~10 nm. The X-ray photoelectron analysis of the green magnesium sample prior to sintering confirmed the presence of MgO, MgCO(3)·3H(2)O, and Mg(OH)(2) in the surface layer of the powder with a core of pure magnesium. The outer portion of the surface layer was found to contain MgCO(3)·3H(2)O and Mg(OH)(2), while the inner portion of the layer is primarily MgO. After sintering, the MgCO(3)·3H(2)O was found to be almost completely absent, and the amount of Mg(OH)(2) was also decreased significantly. This is postulated to occur by decomposition of the compounds to MgO and gases during the high temperature of sintering. An increase in the MgO content after sintering supports this theory.

  5. The Dynamic Flow and Failure Behavior of Magnesium and Magnesium Alloys

    NASA Astrophysics Data System (ADS)

    Eswar Prasad, K.; Li, B.; Dixit, N.; Shaffer, M.; Mathaudhu, S. N.; Ramesh, K. T.

    2014-01-01

    We review the dynamic behavior of magnesium alloys through a survey of the literature and a comparison with our own high-strain-rate experiments. We describe high-strain-rate experiments (at typical strain rates of 103 s-1) on polycrystalline pure magnesium as well as two magnesium alloys, AZ31B and ZK60. Both deformation and failure are considered. The observed behaviors are discussed in terms of the fundamental deformation and failure mechanisms in magnesium, considering the effects of grain size, strain rate, and crystallographic texture. A comparison of current results with the literature studies on these and other Mg alloys reveals that the crystallographic texture, grain size, and alloying elements continue to have a profound influence on the high-strain-rate deformation behavior. The available data set suggests that those materials loaded so as to initiate extension twinning have relatively rate-insensitive strengths up to strain rates of several thousand per second. In contrast, some rate dependence of the flow stress is observed for loading orientations in which the plastic flow is dominated by dislocation mechanisms.

  6. Dynamics of a Probable Earth-mass Planet in the GJ 832 System

    NASA Astrophysics Data System (ADS)

    Satyal, S.; Griffith, J.; Musielak, Z. E.

    2017-08-01

    The stability of planetary orbits around the GJ 832 star system, which contains inner (GJ 832c) and outer (GJ 832b) planets, is investigated numerically and a detailed phase-space analysis is performed. Special attention is given to the existence of stable orbits for a planet less than 15 M ⊕ that is injected between the inner and outer planets. Thus, numerical simulations are performed for three and four bodies in elliptical orbits (or circular for special cases) by using a large number of initial conditions that cover the selected phase-spaces of the planet’s orbital parameters. The results presented in the phase-space maps for GJ 832c indicate the least deviation of eccentricity from its nominal value, which is then used to determine its inclination regime relative to the star-outer planet plane. Also, the injected planet is found to display stable orbital configurations for at least one billion years. Then, the radial velocity curves based on the signature from the Keplerian motion are generated for the injected planets with masses 1 M ⊕ to 15 M ⊕ in order to estimate their semimajor axes and mass limits. The synthetic RV signal suggests that an additional planet of mass ≤15 M ⊕ with a dynamically stable configuration may be residing between 0.25 and 2.0 au from the star. We have provided an estimated number of RV observations for the additional planet that is required for further observational verification.

  7. Effects of Ti and TiB2 Nanoparticulates on Room Temperature Mechanical Properties and In Vitro Degradation of Pure Mg

    NASA Astrophysics Data System (ADS)

    Meenashisundaram, Ganesh Kumar; Nai, Mui Hoon; Gupta, Manoj

    Mg 1 vol.% Ti and Mg 1 vol.% TiB2 composites containing Ti (30-50 nm) and TiB2 ( 60 nm) nanoparticulates were successfully synthesized using disintegrated melt deposition technique followed by hot extrusion. In vitro degradation of synthesized pure magnesium and composites were assessed by immersion testing in Dulbecco's Modified Eagle's Medium (DMEM) + 10% Fetal Bovine Serum (FBS) solution for a maximum duration of 28 days. Determination of corrosion rates by weight loss technique reveals that after 28 days of immersion testing, Mg 1 vol.% Ti exhibited the best corrosion resistance followed by pure magnesium and finally by Mg 1 vol.% TiB2 composite. The room temperature mechanical properties of the synthesized composites were found to surpass those of pure magnesium. On tensile and compressive loading, substantial strengthening of pure magnesium was observed with 1 vol.% Ti addition whereas appreciable increase in tensile and compressive fracture strains of pure magnesium was observed with 1 vol.% TiB2 addition.

  8. Corrosion in Magnesium and a Magnesium Alloy

    NASA Astrophysics Data System (ADS)

    Akavipat, Sanay

    Magnesium and a magnesium alloy (AZ91C) have been ion implanted over a range of ions energies (50 to 150 keV) and doses (1 x 10('16) to 2 x 10('17) ions/cm('2)) to modify the corrosion properties of the metals. The corrosion tests were done by anodic polarization in chloride -free and chloride-containing aqueous solutions of a borated -boric acid with a pH of 9.3. Anodic polarization measurements showed that some implantations could greatly reduce the corrosion current densities at all impressed voltages and also increased slightly the pitting potential, which indicated the onset of the chloride attack. These improvements in corrosion resistance were caused by boron implantations into both types of samples. However, iron implantations were found to improve only the magnesium alloy. To study the corrosion in more detail, Scanning Auger Microprobe Spectrometer (SAM), Scanning Electron Microscope (SEM) with an X-ray Energy Spectrometry (XES) attachment, and Transmission Electron Microscope (TEM) measurements were used to analyze samples before, after, and at various corrosion stages. In both the unimplanted pure magnesium and AZ91C samples, anodic polarization results revealed that there were three active corrosion stages (Stages A, C, and E) and two passivating stages (Stages B and D). Examination of Stages A and B in both types of samples showed that only a mild, generalized corrosion had occurred. In Stage C of the TD samples, a pitting breakdown in the initial oxide film was observed. In Stage C of the AZ91C samples, galvanic and intergranular attack around the Mg(,17)Al(,12) intermetallic islands and along the matrix grain boundaries was observed. Stage D of both samples showed the formation of a thick, passivating oxygen containing, probably Mg(OH)(,2) film. In Stage E, this film was broken down by pits, which formed due to the presence of the chloride ions in both types of samples. Stages A through D of the unimplanted samples were not seen in the boron or iron

  9. 26 CFR 1.832-5 - Deductions.

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ... TAXES (CONTINUED) Other Insurance Companies § 1.832-5 Deductions. (a) The deductions allowable are..., insurance companies are allowed a deduction for losses from capital assets sold or exchanged in order to... provisions of section 1212. The deduction is the same as that allowed mutual insurance companies subject to...

  10. 26 CFR 1.832-2 - Deductions.

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ... TAXES (CONTINUED) Other Insurance Companies § 1.832-2 Deductions. (a) The deductions allowable are..., insurance companies are allowed a deduction for losses from capital assets sold or exchanged in order to... provisions of section 1212. The deduction is the same as that allowed mutual insurance companies subject to...

  11. 26 CFR 1.832-2 - Deductions.

    Code of Federal Regulations, 2013 CFR

    2013-04-01

    ... TAXES (CONTINUED) Other Insurance Companies § 1.832-2 Deductions. (a) The deductions allowable are..., insurance companies are allowed a deduction for losses from capital assets sold or exchanged in order to... provisions of section 1212. The deduction is the same as that allowed mutual insurance companies subject to...

  12. 26 CFR 1.832-2 - Deductions.

    Code of Federal Regulations, 2012 CFR

    2012-04-01

    ... TAXES (CONTINUED) Other Insurance Companies § 1.832-2 Deductions. (a) The deductions allowable are..., insurance companies are allowed a deduction for losses from capital assets sold or exchanged in order to... provisions of section 1212. The deduction is the same as that allowed mutual insurance companies subject to...

  13. 26 CFR 1.832-2 - Deductions.

    Code of Federal Regulations, 2014 CFR

    2014-04-01

    ... TAXES (CONTINUED) Other Insurance Companies § 1.832-2 Deductions. (a) The deductions allowable are..., insurance companies are allowed a deduction for losses from capital assets sold or exchanged in order to... provisions of section 1212. The deduction is the same as that allowed mutual insurance companies subject to...

  14. Preparation and characterizations of bioglass ceramic cement/Ca-P coating on pure magnesium for biomedical applications.

    PubMed

    Zhang, Xue; Li, Xiao-Wu; Li, Ji-Guang; Sun, Xu-Dong

    2014-01-08

    Magnesium has been recently recognized as a biodegradable metal for bone substitute applications. In order to improve the biocompatibility and osteointegration of pure Mg, two kinds of coatings, i.e., the Ca-P coating and bioglass ceramic cement (BGCC)/Ca-P coating, were prepared on the pure Mg ribbons in the present work. The Ca-P coating was obtained by aqueous solution method. Subsequently, Ca-P coated Mg was immersed into the BGCC slurry, which was prepared by the mix of SiO2-CaO-P2O5 bioglass ceramic (BGC) powders and phosphate liquid with a liquid-to-solid ratio (L/S) of 1.6, to obtain BGCC/Ca-P coating by a dipping-pulling method. The microstructures, morphologies, and compositions of these coatings have been characterized by X-ray diffraction (XRD) and scanning electron microscopy (SEM) with energy-dispersive spectroscopy (EDS). The effect of these coatings on the mineralization activity of pure Mg has been investigated. The results indicated that both the Ca-P coating and BGCC/Ca-P coating could promote the nucleation of osteoconductive minerals, i.e., bone-like apatite, and the hydroxyapatite (HA) layer formed on the surface of the BGCC/Ca-P coating is obviously more dense, thick, and stable than that formed on the Ca-P coating after immersion in SBF solution for 15 days. The potentiodynamic polarization test indicated that the corrosion current density of the BGCC/Ca-P coated Mg is obviously lower than that of the Ca-P coating and 10 times lower than that of uncoated Mg. These results demonstrated that the BGCC/Ca-P coating can increase significantly the corrosion resistance of Mg and introduce a high biocompatibility of the bone-Mg substrate interface. In summary, the newly developed BGCC/Ca-P coated Mg has a good potential for biomedical applications.

  15. 26 CFR 1.832-5 - Deductions.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ... TAXES Other Insurance Companies § 1.832-5 Deductions. (a) The deductions allowable are specified in... provisions of section 1212. The deduction is the same as that allowed mutual insurance companies subject to... companies, other than mutual fire insurance companies described in section 831(a)(3)(A) and the regulations...

  16. 26 CFR 1.832-2 - Deductions.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ... TAXES Other Insurance Companies § 1.832-2 Deductions. (a) The deductions allowable are specified in... provisions of section 1212. The deduction is the same as that allowed mutual insurance companies subject to... companies, other than mutual fire insurance companies described in § 1.831-1, are also allowed a deduction...

  17. 32 CFR 700.832 - Environmental pollution.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... AND OFFICIAL RECORDS UNITED STATES NAVY REGULATIONS AND OFFICIAL RECORDS The Commanding Officer Commanding Officers in General § 700.832 Environmental pollution. The commanding officer shall cooperate with... considerations, insufficient resources or other reason, the commanding officer shall report to the immediate...

  18. 32 CFR 700.832 - Environmental pollution.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... AND OFFICIAL RECORDS UNITED STATES NAVY REGULATIONS AND OFFICIAL RECORDS The Commanding Officer Commanding Officers in General § 700.832 Environmental pollution. The commanding officer shall cooperate with... considerations, insufficient resources or other reason, the commanding officer shall report to the immediate...

  19. 32 CFR 700.832 - Environmental pollution.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... AND OFFICIAL RECORDS UNITED STATES NAVY REGULATIONS AND OFFICIAL RECORDS The Commanding Officer Commanding Officers in General § 700.832 Environmental pollution. The commanding officer shall cooperate with... considerations, insufficient resources or other reason, the commanding officer shall report to the immediate...

  20. Buffer-regulated biocorrosion of pure magnesium.

    PubMed

    Kirkland, Nicholas T; Waterman, Jay; Birbilis, Nick; Dias, George; Woodfield, Tim B F; Hartshorn, Richard M; Staiger, Mark P

    2012-02-01

    Magnesium (Mg) alloys are being actively investigated as potential load-bearing orthopaedic implant materials due to their biodegradability in vivo. With Mg biomaterials at an early stage in their development, the screening of alloy compositions for their biodegradation rate, and hence biocompatibility, is reliant on cost-effective in vitro methods. The use of a buffer to control pH during in vitro biodegradation is recognised as critically important as this seeks to mimic pH control as it occurs naturally in vivo. The two different types of in vitro buffer system available are based on either (i) zwitterionic organic compounds or (ii) carbonate buffers within a partial-CO(2) atmosphere. This study investigated the influence of the buffering system itself on the in vitro corrosion of Mg. It was found that the less realistic zwitterion-based buffer did not form the same corrosion layers as the carbonate buffer, and was potentially affecting the behaviour of the hydrated oxide layer that forms on Mg in all aqueous environments. Consequently it was recommended that Mg in vitro experiments use the more biorealistic carbonate buffering system when possible.

  1. 48 CFR 832.7002 - Electronic payment requests.

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ... 48 Federal Acquisition Regulations System 5 2014-10-01 2014-10-01 false Electronic payment... GENERAL CONTRACTING REQUIREMENTS CONTRACT FINANCING Electronic Invoicing Requirements 832.7002 Electronic payment requests. (a) The contractor shall submit payment requests in electronic form unless directed by...

  2. 48 CFR 832.7002 - Electronic payment requests.

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ... 48 Federal Acquisition Regulations System 5 2013-10-01 2013-10-01 false Electronic payment... GENERAL CONTRACTING REQUIREMENTS CONTRACT FINANCING Electronic Invoicing Requirements 832.7002 Electronic payment requests. (a) The contractor shall submit payment requests in electronic form unless directed by...

  3. 24 CFR 570.420 - General.

    Code of Federal Regulations, 2012 CFR

    2012-04-01

    ... New York. The requirements for the non-entitlement CDBG grants in Hawaii are set forth in § 570.429 of... the Act and §§ 570.400 and 570.405 of this part. (3) The policies and procedures set forth in the... national objectives as defined under the criteria in § 570.208: (i) Benefit low- and moderate-income...

  4. 24 CFR 570.420 - General.

    Code of Federal Regulations, 2014 CFR

    2014-04-01

    ... New York. The requirements for the non-entitlement CDBG grants in Hawaii are set forth in § 570.429 of... the Act and §§ 570.400 and 570.405 of this part. (3) The policies and procedures set forth in the... national objectives as defined under the criteria in § 570.208: (i) Benefit low- and moderate-income...

  5. 24 CFR 570.420 - General.

    Code of Federal Regulations, 2013 CFR

    2013-04-01

    ... New York. The requirements for the non-entitlement CDBG grants in Hawaii are set forth in § 570.429 of... the Act and §§ 570.400 and 570.405 of this part. (3) The policies and procedures set forth in the... national objectives as defined under the criteria in § 570.208: (i) Benefit low- and moderate-income...

  6. 24 CFR 570.507 - Reports.

    Code of Federal Regulations, 2012 CFR

    2012-04-01

    ... 24 Housing and Urban Development 3 2012-04-01 2012-04-01 false Reports. 570.507 Section 570.507... COMMUNITY FACILITIES COMMUNITY DEVELOPMENT BLOCK GRANTS Grant Administration § 570.507 Reports. (a) Performance and evaluation report—(1) Entitlement grant recipients and HUD-administered small cities...

  7. 24 CFR 570.507 - Reports.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ... 24 Housing and Urban Development 3 2010-04-01 2010-04-01 false Reports. 570.507 Section 570.507... COMMUNITY FACILITIES COMMUNITY DEVELOPMENT BLOCK GRANTS Grant Administration § 570.507 Reports. (a) Performance and evaluation report—(1) Entitlement grant recipients and HUD-administered small cities...

  8. 24 CFR 570.426 - Program income.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ... 24 Housing and Urban Development 3 2010-04-01 2010-04-01 false Program income. 570.426 Section 570... in Hawaii and Insular Areas Programs § 570.426 Program income. (a) The provisions of § 570.504(b) apply to all program income generated by a specific grant and received prior to grant closeout. (b) If...

  9. Metastable bcc mischmetal-magnesium alloys

    DOE Office of Scientific and Technical Information (OSTI.GOV)

    Sabariz, A.L.R.

    1989-02-01

    The bcc phase in the MM-Mg system can be metastably retained at room temperature for magnesium composition within the range 16 at.% - 20 at.%. The retention of a lower composition was restricted by quenching rate and at higher concentrations by intermetallic compound precipitation. The lattice parameter for the pure bcc mischmetal phase was determined by extrapolation. The value obtained (a/sub E/ = 4.131 /angstrom/) was in good agreement with the theoretical value (a/sub t/ = 4.156 /angstrom/). Magnetic susceptibility data suggested that bcc mischmetal-magnesium alloys underwent a change from paramagnetic to antiferromagnetic behavior on cooling at /approximately/20 K, independentmore » of magnesium composition. The value found for the magnetic effective moment per gram-atom-magnetic-rare earth of each bcc MM-Mg alloy examined (MM - 16 Mg, MM - 18 Mg and MM - 20 Mg) was found to be constant (p/sub eff/ approx. 1.62 ..mu../sub B/), independent of the magnesium composition. The observed Curie-Weiss temperature values decreasing with the magnesium content increasing were due to magnetic dilution. The equilibrium reaction bcc ..-->.. dhcp + MMMg presented an undercooling effect of /approximately/40/degree/C around the eutectoid composition (/approximately/17 at.% Mg). The sluggish character of this reaction was considered the strongest effect for the bcc structure retention in the mischmetal-magnesium system. 16 refs., 27 figs.« less

  10. 31 CFR 570.303 - Entity.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... 31 Money and Finance:Treasury 3 2011-07-01 2011-07-01 false Entity. 570.303 Section 570.303 Money... CONTROL, DEPARTMENT OF THE TREASURY LIBYAN SANCTIONS REGULATIONS General Definitions § 570.303 Entity. The term entity means a partnership, association, trust, joint venture, corporation, group, subgroup, or...

  11. 24 CFR 570.500 - Definitions.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ... 24 Housing and Urban Development 3 2010-04-01 2010-04-01 false Definitions. 570.500 Section 570... DEVELOPMENT COMMUNITY FACILITIES COMMUNITY DEVELOPMENT BLOCK GRANTS Grant Administration § 570.500 Definitions... or by a subrecipient with CDBG funds, less costs incidental to generation of the income; (iv) Gross...

  12. 20 CFR 410.570 - Underpayments.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ... 20 Employees' Benefits 2 2010-04-01 2010-04-01 false Underpayments. 410.570 Section 410.570 Employees' Benefits SOCIAL SECURITY ADMINISTRATION FEDERAL COAL MINE HEALTH AND SAFETY ACT OF 1969, TITLE IV-BLACK LUNG BENEFITS (1969- ) Payment of Benefits § 410.570 Underpayments. (a) General. As used in this...

  13. 29 CFR 570.1 - Definitions.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 29 Labor 3 2010-07-01 2010-07-01 false Definitions. 570.1 Section 570.1 Labor Regulations Relating to Labor (Continued) WAGE AND HOUR DIVISION, DEPARTMENT OF LABOR REGULATIONS CHILD LABOR REGULATIONS, ORDERS AND STATEMENTS OF INTERPRETATION General § 570.1 Definitions. As used in this part: (a) Act means...

  14. Torsional and axial damping properties of the AZ31B-F magnesium alloy

    NASA Astrophysics Data System (ADS)

    Anes, V.; Lage, Y. E.; Vieira, M.; Maia, N. M. M.; Freitas, M.; Reis, L.

    2016-10-01

    Damping properties for the AZ31B-F magnesium alloy were evaluated for pure axial and pure shear loading conditions at room temperature. Hysteretic damping results were measured through stress-strain controlled tests. Moreover, the magnesium alloy viscous damping was measured with frequency response functions and free vibration decay, both results were obtained by experiments. The axial and shear damping ratio (ASDR) has been identified and described, specifically for free vibration conditions.

  15. 29 CFR 570.123 - Agriculture.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 29 Labor 3 2010-07-01 2010-07-01 false Agriculture. 570.123 Section 570.123 Labor Regulations... Provisions of the Fair Labor Standards Act of 1938, as Amended Exemptions § 570.123 Agriculture. (a) Section... agriculture outside of school hours for the school district where such employee is living while he is so...

  16. 29 CFR 570.123 - Agriculture.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... 29 Labor 3 2012-07-01 2012-07-01 false Agriculture. 570.123 Section 570.123 Labor Regulations... Provisions of the Fair Labor Standards Act of 1938, as Amended Exemptions § 570.123 Agriculture. (a) Section... agriculture outside of school hours for the school district where such employee is living while he is so...

  17. 29 CFR 570.123 - Agriculture.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... 29 Labor 3 2013-07-01 2013-07-01 false Agriculture. 570.123 Section 570.123 Labor Regulations... Provisions of the Fair Labor Standards Act of 1938, as Amended Exemptions § 570.123 Agriculture. (a) Section... agriculture outside of school hours for the school district where such employee is living while he is so...

  18. 29 CFR 570.123 - Agriculture.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... 29 Labor 3 2014-07-01 2014-07-01 false Agriculture. 570.123 Section 570.123 Labor Regulations... Provisions of the Fair Labor Standards Act of 1938, as Amended Exemptions § 570.123 Agriculture. (a) Section... agriculture outside of school hours for the school district where such employee is living while he is so...

  19. 29 CFR 570.123 - Agriculture.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... 29 Labor 3 2011-07-01 2011-07-01 false Agriculture. 570.123 Section 570.123 Labor Regulations... Provisions of the Fair Labor Standards Act of 1938, as Amended Exemptions § 570.123 Agriculture. (a) Section... agriculture outside of school hours for the school district where such employee is living while he is so...

  20. 49 CFR 570.62 - Tires.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... 49 Transportation 6 2010-10-01 2010-10-01 false Tires. 570.62 Section 570.62 Transportation Other... § 570.62 Tires. (a) Tread depth. The tread shall be not less than four thirty-seconds of an inch deep on each front tire of any vehicle other than a trailer and not less than two thirty-seconds of an inch on...

  1. 48 CFR 503.570 - Advertising.

    Code of Federal Regulations, 2012 CFR

    2012-10-01

    ... 48 Federal Acquisition Regulations System 4 2012-10-01 2012-10-01 false Advertising. 503.570 Section 503.570 Federal Acquisition Regulations System GENERAL SERVICES ADMINISTRATION GENERAL IMPROPER BUSINESS PRACTICES AND PERSONAL CONFLICTS OF INTEREST Other Improper Business Practices 503.570 Advertising. ...

  2. 48 CFR 503.570 - Advertising.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... 48 Federal Acquisition Regulations System 4 2010-10-01 2010-10-01 false Advertising. 503.570 Section 503.570 Federal Acquisition Regulations System GENERAL SERVICES ADMINISTRATION GENERAL IMPROPER BUSINESS PRACTICES AND PERSONAL CONFLICTS OF INTEREST Other Improper Business Practices 503.570 Advertising. ...

  3. 48 CFR 503.570 - Advertising.

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ... 48 Federal Acquisition Regulations System 4 2013-10-01 2013-10-01 false Advertising. 503.570 Section 503.570 Federal Acquisition Regulations System GENERAL SERVICES ADMINISTRATION GENERAL IMPROPER BUSINESS PRACTICES AND PERSONAL CONFLICTS OF INTEREST Other Improper Business Practices 503.570 Advertising. ...

  4. 48 CFR 503.570 - Advertising.

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ... 48 Federal Acquisition Regulations System 4 2011-10-01 2011-10-01 false Advertising. 503.570 Section 503.570 Federal Acquisition Regulations System GENERAL SERVICES ADMINISTRATION GENERAL IMPROPER BUSINESS PRACTICES AND PERSONAL CONFLICTS OF INTEREST Other Improper Business Practices 503.570 Advertising. ...

  5. 48 CFR 503.570 - Advertising.

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ... 48 Federal Acquisition Regulations System 4 2014-10-01 2014-10-01 false Advertising. 503.570 Section 503.570 Federal Acquisition Regulations System GENERAL SERVICES ADMINISTRATION GENERAL IMPROPER BUSINESS PRACTICES AND PERSONAL CONFLICTS OF INTEREST Other Improper Business Practices 503.570 Advertising. ...

  6. 48 CFR 570.102 - Definitions.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... 48 Federal Acquisition Regulations System 4 2010-10-01 2010-10-01 false Definitions. 570.102 Section 570.102 Federal Acquisition Regulations System GENERAL SERVICES ADMINISTRATION SPECIAL CONTRACTING PROGRAMS ACQUIRING LEASEHOLD INTERESTS IN REAL PROPERTY General 570.102 Definitions. Acquisition means the...

  7. 48 CFR 570.402-3 - Market survey.

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ... 48 Federal Acquisition Regulations System 4 2014-10-01 2014-10-01 false Market survey. 570.402-3 Section 570.402-3 Federal Acquisition Regulations System GENERAL SERVICES ADMINISTRATION SPECIAL... Continued Space Requirements 570.402-3 Market survey. Conduct a market survey following 570.301. ...

  8. 48 CFR 570.402-3 - Market survey.

    Code of Federal Regulations, 2012 CFR

    2012-10-01

    ... 48 Federal Acquisition Regulations System 4 2012-10-01 2012-10-01 false Market survey. 570.402-3 Section 570.402-3 Federal Acquisition Regulations System GENERAL SERVICES ADMINISTRATION SPECIAL... Continued Space Requirements 570.402-3 Market survey. Conduct a market survey following 570.301. ...

  9. 48 CFR 570.402-3 - Market survey.

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ... 48 Federal Acquisition Regulations System 4 2011-10-01 2011-10-01 false Market survey. 570.402-3 Section 570.402-3 Federal Acquisition Regulations System GENERAL SERVICES ADMINISTRATION SPECIAL... Continued Space Requirements 570.402-3 Market survey. Conduct a market survey following 570.301. ...

  10. 48 CFR 570.402-3 - Market survey.

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ... 48 Federal Acquisition Regulations System 4 2013-10-01 2013-10-01 false Market survey. 570.402-3 Section 570.402-3 Federal Acquisition Regulations System GENERAL SERVICES ADMINISTRATION SPECIAL... Continued Space Requirements 570.402-3 Market survey. Conduct a market survey following 570.301. ...

  11. 48 CFR 570.402-3 - Market survey.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... 48 Federal Acquisition Regulations System 4 2010-10-01 2010-10-01 false Market survey. 570.402-3 Section 570.402-3 Federal Acquisition Regulations System GENERAL SERVICES ADMINISTRATION SPECIAL... Continued Space Requirements 570.402-3 Market survey. Conduct a market survey following 570.301. ...

  12. Proteomic profile of mouse fibroblasts exposed to pure magnesium extract.

    PubMed

    Zhen, Zhen; Luthringer, Bérengère; Yang, Li; Xi, Tingfei; Zheng, Yufeng; Feyerabend, Frank; Willumeit, Regine; Lai, Chen; Ge, Zigang

    2016-12-01

    Magnesium and its alloys gain wide attention as degradable biomaterials. In order to reveal the molecular mechanism of the influence of biodegradable magnesium on cells, proteomics analysis was performed in this work. After mouse fibroblasts (L929) were cultured with or without Mg degradation products (Mg-extract) for 8, 24, and 48h, changes in protein expression profiles were obtained using isobaric tags for relative and absolute quantitation (iTRAQ) coupled two dimensional liquid chromatography-tandem mass spectrometry (2D LC MS/MS). A total of 867 proteins were identified (relying on at least two peptides). Compared to the control group, 205, 282, and 217 regulated proteins were identified at 8, 24, and 48h, respectively. 65 common proteins were up or down- regulated within all the three time points, which were involved in various physiological and metabolic activities. Consistent with viability, proliferation, and cell cycle analysis, stimulated energy metabolism as well as protein synthesis pathways were discussed, indicating a possible effect of Mg-extract on L929 proliferation. Furthermore, endocytosis and focal adhesion processes were also discussed. This proteomics study uncovers early cellular mechanisms triggered by Mg degradation products and highlights the cytocompatibility of biodegradable metallic materials for biomedical applications such as stents or orthopaedic implants. Copyright © 2016. Published by Elsevier B.V.

  13. 26 CFR 1.832-1 - Gross income.

    Code of Federal Regulations, 2014 CFR

    2014-04-01

    ... TAXES (CONTINUED) Other Insurance Companies § 1.832-1 Gross income. (a) Gross income as defined in... under section 61, except that in the case of a mutual fire insurance company described in § 1.831-1 the..., remittances from the home office of a foreign insurance company to the United States branch, borrowed money...

  14. 26 CFR 1.832-1 - Gross income.

    Code of Federal Regulations, 2013 CFR

    2013-04-01

    ... TAXES (CONTINUED) Other Insurance Companies § 1.832-1 Gross income. (a) Gross income as defined in... under section 61, except that in the case of a mutual fire insurance company described in § 1.831-1 the..., remittances from the home office of a foreign insurance company to the United States branch, borrowed money...

  15. 26 CFR 1.832-1 - Gross income.

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ... TAXES (CONTINUED) Other Insurance Companies § 1.832-1 Gross income. (a) Gross income as defined in... under section 61, except that in the case of a mutual fire insurance company described in § 1.831-1 the..., remittances from the home office of a foreign insurance company to the United States branch, borrowed money...

  16. 26 CFR 1.832-1 - Gross income.

    Code of Federal Regulations, 2012 CFR

    2012-04-01

    ... TAXES (CONTINUED) Other Insurance Companies § 1.832-1 Gross income. (a) Gross income as defined in... under section 61, except that in the case of a mutual fire insurance company described in § 1.831-1 the..., remittances from the home office of a foreign insurance company to the United States branch, borrowed money...

  17. Intravenous magnesium sulfate with and without EDTA as a magnesium load test-is magnesium deficiency widespread?

    PubMed

    Waters, Robert S; Fernholz, Karen; Bryden, Noella A; Anderson, Richard A

    2008-09-01

    Serum/plasma measurements do not reflect magnesium deficits in clinical situations, and magnesium load tests are used as a more accurate method to identify magnesium deficiency in a variety of disease states as well as in subclinical conditions. The objective of this study was to determine if people are indeed magnesium deficient or if the apparent magnesium deficiency is due to the composition of the infusate used in the load test. Magnesium load tests were performed on seven patients using three different Mg solution infusions-a Mg-EDTA (ethylene diamine tetraacetic acid)-nutrient cocktail used in EDTA chelation therapy containing several components including vitamins and minerals, and the same cocktail without EDTA and an infusion of an identical amount of magnesium in normal saline solution. There was no significant difference in the amount of magnesium retained in the 24 h after infusion among the three infusates. All infusates resulted in very high magnesium retention compared to previous published magnesium load studies. Magnesium deficiency may be widespread, and the relationship of Mg deficiency to related diseases requires further study.

  18. 49 CFR 570.10 - Wheel assemblies.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... 49 Transportation 6 2010-10-01 2010-10-01 false Wheel assemblies. 570.10 Section 570.10 Transportation Other Regulations Relating to Transportation (Continued) NATIONAL HIGHWAY TRAFFIC SAFETY... Pounds or Less § 570.10 Wheel assemblies. (a) Wheel integrity. A tire rim, wheel disc, or spider shall...

  19. 49 CFR 570.63 - Wheel assemblies.

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ... 49 Transportation 6 2013-10-01 2013-10-01 false Wheel assemblies. 570.63 Section 570.63 Transportation Other Regulations Relating to Transportation (Continued) NATIONAL HIGHWAY TRAFFIC SAFETY... 10,000 Pounds § 570.63 Wheel assemblies. (a) Wheel integrity. A tire rim, wheel disc or spider shall...

  20. 49 CFR 570.10 - Wheel assemblies.

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ... 49 Transportation 6 2014-10-01 2014-10-01 false Wheel assemblies. 570.10 Section 570.10 Transportation Other Regulations Relating to Transportation (Continued) NATIONAL HIGHWAY TRAFFIC SAFETY... Pounds or Less § 570.10 Wheel assemblies. (a) Wheel integrity. A tire rim, wheel disc, or spider shall...

  1. 49 CFR 570.63 - Wheel assemblies.

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ... 49 Transportation 6 2014-10-01 2014-10-01 false Wheel assemblies. 570.63 Section 570.63 Transportation Other Regulations Relating to Transportation (Continued) NATIONAL HIGHWAY TRAFFIC SAFETY... 10,000 Pounds § 570.63 Wheel assemblies. (a) Wheel integrity. A tire rim, wheel disc or spider shall...

  2. 49 CFR 570.63 - Wheel assemblies.

    Code of Federal Regulations, 2012 CFR

    2012-10-01

    ... 49 Transportation 6 2012-10-01 2012-10-01 false Wheel assemblies. 570.63 Section 570.63 Transportation Other Regulations Relating to Transportation (Continued) NATIONAL HIGHWAY TRAFFIC SAFETY... 10,000 Pounds § 570.63 Wheel assemblies. (a) Wheel integrity. A tire rim, wheel disc or spider shall...

  3. 49 CFR 570.10 - Wheel assemblies.

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ... 49 Transportation 6 2013-10-01 2013-10-01 false Wheel assemblies. 570.10 Section 570.10 Transportation Other Regulations Relating to Transportation (Continued) NATIONAL HIGHWAY TRAFFIC SAFETY... Pounds or Less § 570.10 Wheel assemblies. (a) Wheel integrity. A tire rim, wheel disc, or spider shall...

  4. 49 CFR 570.10 - Wheel assemblies.

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ... 49 Transportation 6 2011-10-01 2011-10-01 false Wheel assemblies. 570.10 Section 570.10 Transportation Other Regulations Relating to Transportation (Continued) NATIONAL HIGHWAY TRAFFIC SAFETY... Pounds or Less § 570.10 Wheel assemblies. (a) Wheel integrity. A tire rim, wheel disc, or spider shall...

  5. 49 CFR 570.10 - Wheel assemblies.

    Code of Federal Regulations, 2012 CFR

    2012-10-01

    ... 49 Transportation 6 2012-10-01 2012-10-01 false Wheel assemblies. 570.10 Section 570.10 Transportation Other Regulations Relating to Transportation (Continued) NATIONAL HIGHWAY TRAFFIC SAFETY... Pounds or Less § 570.10 Wheel assemblies. (a) Wheel integrity. A tire rim, wheel disc, or spider shall...

  6. 14 CFR 25.832 - Cabin ozone concentration.

    Code of Federal Regulations, 2011 CFR

    2011-01-01

    ... 14 Aeronautics and Space 1 2011-01-01 2011-01-01 false Cabin ozone concentration. 25.832 Section... Cabin ozone concentration. (a) The airplane cabin ozone concentration during flight must be shown not to... demonstrate that either— (1) The airplane cannot be operated at an altitude which would result in cabin ozone...

  7. 14 CFR 25.832 - Cabin ozone concentration.

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ... 14 Aeronautics and Space 1 2010-01-01 2010-01-01 false Cabin ozone concentration. 25.832 Section... Cabin ozone concentration. (a) The airplane cabin ozone concentration during flight must be shown not to... demonstrate that either— (1) The airplane cannot be operated at an altitude which would result in cabin ozone...

  8. 14 CFR 25.832 - Cabin ozone concentration.

    Code of Federal Regulations, 2013 CFR

    2013-01-01

    ... 14 Aeronautics and Space 1 2013-01-01 2013-01-01 false Cabin ozone concentration. 25.832 Section... Cabin ozone concentration. (a) The airplane cabin ozone concentration during flight must be shown not to... demonstrate that either— (1) The airplane cannot be operated at an altitude which would result in cabin ozone...

  9. 14 CFR 25.832 - Cabin ozone concentration.

    Code of Federal Regulations, 2014 CFR

    2014-01-01

    ... 14 Aeronautics and Space 1 2014-01-01 2014-01-01 false Cabin ozone concentration. 25.832 Section... Cabin ozone concentration. (a) The airplane cabin ozone concentration during flight must be shown not to... demonstrate that either— (1) The airplane cannot be operated at an altitude which would result in cabin ozone...

  10. 14 CFR 25.832 - Cabin ozone concentration.

    Code of Federal Regulations, 2012 CFR

    2012-01-01

    ... 14 Aeronautics and Space 1 2012-01-01 2012-01-01 false Cabin ozone concentration. 25.832 Section... Cabin ozone concentration. (a) The airplane cabin ozone concentration during flight must be shown not to... demonstrate that either— (1) The airplane cannot be operated at an altitude which would result in cabin ozone...

  11. Retardation of surface corrosion of biodegradable magnesium-based materials by aluminum ion implantation

    NASA Astrophysics Data System (ADS)

    Wu, Guosong; Xu, Ruizhen; Feng, Kai; Wu, Shuilin; Wu, Zhengwei; Sun, Guangyong; Zheng, Gang; Li, Guangyao; Chu, Paul K.

    2012-07-01

    Aluminum ion implantation is employed to modify pure Mg as well as AZ31 and AZ91 magnesium alloys and their surface degradation behavior in simulated body fluids is studied. Polarization tests performed in conjunction with scanning electron microscopy (SEM) reveal that the surface corrosion resistance after Al ion implantation is improved appreciably. This enhancement can be attributed to the formation of a gradient surface structure with a gradual transition from an Al-rich oxide layer to Al-rich metal layer. Compared to the high Al-content magnesium alloy (AZ91), a larger reduction in the degradation rate is achieved from pure magnesium and AZ31. Our results reveal that the surface corrosion resistance of Mg alloys with no or low Al content can be improved by Al ion implantation.

  12. 48 CFR 570.301 - Market survey.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... 48 Federal Acquisition Regulations System 4 2010-10-01 2010-10-01 false Market survey. 570.301 Section 570.301 Federal Acquisition Regulations System GENERAL SERVICES ADMINISTRATION SPECIAL CONTRACTING... Real Property 570.301 Market survey. Conduct a market survey to identify potential sources. Use...

  13. 49 CFR 570.61 - Suspension system.

    Code of Federal Regulations, 2012 CFR

    2012-10-01

    ... 49 Transportation 6 2012-10-01 2012-10-01 false Suspension system. 570.61 Section 570.61 Transportation Other Regulations Relating to Transportation (Continued) NATIONAL HIGHWAY TRAFFIC SAFETY... 10,000 Pounds § 570.61 Suspension system. (a) Suspension condition. Ball joint seals shall not be cut...

  14. 49 CFR 570.61 - Suspension system.

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ... 49 Transportation 6 2014-10-01 2014-10-01 false Suspension system. 570.61 Section 570.61 Transportation Other Regulations Relating to Transportation (Continued) NATIONAL HIGHWAY TRAFFIC SAFETY... 10,000 Pounds § 570.61 Suspension system. (a) Suspension condition. Ball joint seals shall not be cut...

  15. 49 CFR 570.8 - Suspension systems.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... 49 Transportation 6 2010-10-01 2010-10-01 false Suspension systems. 570.8 Section 570.8 Transportation Other Regulations Relating to Transportation (Continued) NATIONAL HIGHWAY TRAFFIC SAFETY... Pounds or Less § 570.8 Suspension systems. (a) Suspension condition. Ball joint seals shall not be cut or...

  16. 29 CFR 100.570 - Compliance procedures.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 29 Labor 2 2010-07-01 2010-07-01 false Compliance procedures. 100.570 Section 100.570 Labor... § 100.570 Compliance procedures. (a) Except as provided in paragraph (b) of this section, this section... the Architectural and Transportation Barriers Compliance Board upon receipt of any complaint alleging...

  17. Fracture healing using degradable magnesium fixation plates and screws.

    PubMed

    Chaya, Amy; Yoshizawa, Sayuri; Verdelis, Kostas; Noorani, Sabrina; Costello, Bernard J; Sfeir, Charles

    2015-02-01

    Internal bone fixation devices made with permanent metals are associated with numerous long-term complications and may require removal. We hypothesized that fixation devices made with degradable magnesium alloys could provide an ideal combination of strength and degradation, facilitating fracture fixation and healing while eliminating the need for implant removal surgery. Fixation plates and screws were machined from 99.9% pure magnesium and compared with titanium devices in a rabbit ulnar fracture model. Magnesium device degradation and the effect on fracture healing and bone formation were assessed after 4 weeks. Fracture healing with magnesium device fixation was compared with that of titanium devices using qualitative histologic analysis and quantitative histomorphometry. Micro-computed tomography showed device degradation after 4 weeks in vivo. In addition, 2-dimensional micro-computed tomography slices and histologic staining showed that magnesium degradation did not inhibit fracture healing or bone formation. Histomorphology showed no difference in bone-bridging fractures fixed with magnesium and titanium devices. Interestingly, abundant new bone was formed around magnesium devices, suggesting a connection between magnesium degradation and bone formation. Our results show potential for magnesium fixation devices in a loaded fracture environment. Furthermore, these results suggest that magnesium fixation devices may enhance fracture healing by encouraging localized new bone formation. Copyright © 2015 American Association of Oral and Maxillofacial Surgeons. Published by Elsevier Inc. All rights reserved.

  18. 28 CFR 570.21 - Time-frames.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... 28 Judicial Administration 2 2013-07-01 2013-07-01 false Time-frames. 570.21 Section 570.21... PROGRAMS Pre-Release Community Confinement § 570.21 Time-frames. (a) Community confinement. Inmates may be... inmate's term of imprisonment or six months. (c) Exceeding time-frames. These time-frames may be exceeded...

  19. 28 CFR 570.21 - Time-frames.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... 28 Judicial Administration 2 2014-07-01 2014-07-01 false Time-frames. 570.21 Section 570.21... PROGRAMS Pre-Release Community Confinement § 570.21 Time-frames. (a) Community confinement. Inmates may be... inmate's term of imprisonment or six months. (c) Exceeding time-frames. These time-frames may be exceeded...

  20. 28 CFR 570.21 - Time-frames.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... 28 Judicial Administration 2 2012-07-01 2012-07-01 false Time-frames. 570.21 Section 570.21... PROGRAMS Pre-Release Community Confinement § 570.21 Time-frames. (a) Community confinement. Inmates may be... inmate's term of imprisonment or six months. (c) Exceeding time-frames. These time-frames may be exceeded...

  1. 28 CFR 570.21 - Time-frames.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... 28 Judicial Administration 2 2011-07-01 2011-07-01 false Time-frames. 570.21 Section 570.21... PROGRAMS Pre-Release Community Confinement § 570.21 Time-frames. (a) Community confinement. Inmates may be... inmate's term of imprisonment or six months. (c) Exceeding time-frames. These time-frames may be exceeded...

  2. 7 CFR 3560.570 - Construction financing.

    Code of Federal Regulations, 2014 CFR

    2014-01-01

    ... 7 Agriculture 15 2014-01-01 2014-01-01 false Construction financing. 3560.570 Section 3560.570... AGRICULTURE DIRECT MULTI-FAMILY HOUSING LOANS AND GRANTS Off-Farm Labor Housing § 3560.570 Construction... Agency. (c) If construction is financed with a Labor Housing grant, it is subject to the provisions of...

  3. 7 CFR 3560.570 - Construction financing.

    Code of Federal Regulations, 2011 CFR

    2011-01-01

    ... 7 Agriculture 15 2011-01-01 2011-01-01 false Construction financing. 3560.570 Section 3560.570... AGRICULTURE DIRECT MULTI-FAMILY HOUSING LOANS AND GRANTS Off-Farm Labor Housing § 3560.570 Construction... Agency. (c) If construction is financed with a Labor Housing grant, it is subject to the provisions of...

  4. 24 CFR 570.504 - Program income.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ... 24 Housing and Urban Development 3 2010-04-01 2010-04-01 false Program income. 570.504 Section 570... income. (a) Recording program income. The receipt and expenditure of program income as defined in § 570... of program income received by recipients. (1) Program income received before grant closeout may be...

  5. 28 CFR 570.21 - Time-frames.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 28 Judicial Administration 2 2010-07-01 2010-07-01 false Time-frames. 570.21 Section 570.21... PROGRAMS Pre-Release Community Confinement § 570.21 Time-frames. (a) Community confinement. Inmates may be... inmate's term of imprisonment or six months. (c) Exceeding time-frames. These time-frames may be exceeded...

  6. 49 CFR 570.7 - Steering systems.

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ... 49 Transportation 6 2011-10-01 2011-10-01 false Steering systems. 570.7 Section 570.7... Pounds or Less § 570.7 Steering systems. (a) System play. Lash or free play in the steering system shall... in the steering system. Table 1—Steering System Free Play Values Steering wheel diameter (inches...

  7. 49 CFR 570.7 - Steering systems.

    Code of Federal Regulations, 2012 CFR

    2012-10-01

    ... 49 Transportation 6 2012-10-01 2012-10-01 false Steering systems. 570.7 Section 570.7... Pounds or Less § 570.7 Steering systems. (a) System play. Lash or free play in the steering system shall... in the steering system. Table 1—Steering System Free Play Values Steering wheel diameter (inches...

  8. 49 CFR 570.7 - Steering systems.

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ... 49 Transportation 6 2014-10-01 2014-10-01 false Steering systems. 570.7 Section 570.7... Pounds or Less § 570.7 Steering systems. (a) System play. Lash or free play in the steering system shall... in the steering system. Table 1—Steering System Free Play Values Steering wheel diameter (inches...

  9. 49 CFR 570.7 - Steering systems.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... 49 Transportation 6 2010-10-01 2010-10-01 false Steering systems. 570.7 Section 570.7... Pounds or Less § 570.7 Steering systems. (a) System play. Lash or free play in the steering system shall... in the steering system. Table 1—Steering System Free Play Values Steering wheel diameter (inches...

  10. 29 CFR 570.8 - Issuance of a Federal certificate of age.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... 29 Labor 3 2011-07-01 2011-07-01 false Issuance of a Federal certificate of age. 570.8 Section 570... REGULATIONS CHILD LABOR REGULATIONS, ORDERS AND STATEMENTS OF INTERPRETATION Certificates of Age § 570.8 Issuance of a Federal certificate of age. A Federal certificate of age which shall have the effect...

  11. 29 CFR 570.8 - Issuance of a Federal certificate of age.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... 29 Labor 3 2013-07-01 2013-07-01 false Issuance of a Federal certificate of age. 570.8 Section 570... REGULATIONS CHILD LABOR REGULATIONS, ORDERS AND STATEMENTS OF INTERPRETATION Certificates of Age § 570.8 Issuance of a Federal certificate of age. A Federal certificate of age which shall have the effect...

  12. 29 CFR 570.8 - Issuance of a Federal certificate of age.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... 29 Labor 3 2012-07-01 2012-07-01 false Issuance of a Federal certificate of age. 570.8 Section 570... REGULATIONS CHILD LABOR REGULATIONS, ORDERS AND STATEMENTS OF INTERPRETATION Certificates of Age § 570.8 Issuance of a Federal certificate of age. A Federal certificate of age which shall have the effect...

  13. 29 CFR 570.8 - Issuance of a Federal certificate of age.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 29 Labor 3 2010-07-01 2010-07-01 false Issuance of a Federal certificate of age. 570.8 Section 570... REGULATIONS CHILD LABOR REGULATIONS, ORDERS AND STATEMENTS OF INTERPRETATION Certificates of Age § 570.8 Issuance of a Federal certificate of age. A Federal certificate of age which shall have the effect...

  14. 49 CFR 570.60 - Steering system.

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ... 49 Transportation 6 2014-10-01 2014-10-01 false Steering system. 570.60 Section 570.60... 10,000 Pounds § 570.60 Steering system. (a) System play. Lash or free play in the steering system... excessive lash or free play in the steering system. Table 2. Steering Wheel Free Play Values Steering wheel...

  15. 49 CFR 570.60 - Steering system.

    Code of Federal Regulations, 2012 CFR

    2012-10-01

    ... 49 Transportation 6 2012-10-01 2012-10-01 false Steering system. 570.60 Section 570.60... 10,000 Pounds § 570.60 Steering system. (a) System play. Lash or free play in the steering system... excessive lash or free play in the steering system. Table 2. Steering Wheel Free Play Values Steering wheel...

  16. 49 CFR 570.60 - Steering system.

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ... 49 Transportation 6 2011-10-01 2011-10-01 false Steering system. 570.60 Section 570.60... 10,000 Pounds § 570.60 Steering system. (a) System play. Lash or free play in the steering system... excessive lash or free play in the steering system. Table 2. Steering Wheel Free Play Values Steering wheel...

  17. 29 CFR 570.121 - Age certificates.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... 29 Labor 3 2011-07-01 2011-07-01 false Age certificates. 570.121 Section 570.121 Labor Regulations... Provisions of the Fair Labor Standards Act of 1938, as Amended Oppressive Child Labor § 570.121 Age certificates. (a) To protect an employer from unwitting violation of the minimum age standards, it is provided...

  18. 29 CFR 570.121 - Age certificates.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... 29 Labor 3 2014-07-01 2014-07-01 false Age certificates. 570.121 Section 570.121 Labor Regulations... Provisions of the Fair Labor Standards Act of 1938, as Amended Oppressive Child Labor § 570.121 Age certificates. (a) To protect an employer from unwitting violation of the minimum age standards, it is provided...

  19. 29 CFR 570.121 - Age certificates.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... 29 Labor 3 2013-07-01 2013-07-01 false Age certificates. 570.121 Section 570.121 Labor Regulations... Provisions of the Fair Labor Standards Act of 1938, as Amended Oppressive Child Labor § 570.121 Age certificates. (a) To protect an employer from unwitting violation of the minimum age standards, it is provided...

  20. 29 CFR 570.121 - Age certificates.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... 29 Labor 3 2012-07-01 2012-07-01 false Age certificates. 570.121 Section 570.121 Labor Regulations... Provisions of the Fair Labor Standards Act of 1938, as Amended Oppressive Child Labor § 570.121 Age certificates. (a) To protect an employer from unwitting violation of the minimum age standards, it is provided...

  1. 49 CFR 570.60 - Steering system.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... 49 Transportation 6 2010-10-01 2010-10-01 false Steering system. 570.60 Section 570.60... 10,000 Pounds § 570.60 Steering system. (a) System play. Lash or free play in the steering system... excessive lash or free play in the steering system. Table 2. Steering Wheel Free Play Values Steering wheel...

  2. 48 CFR 570.106 - Publicizing/Advertising.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... 48 Federal Acquisition Regulations System 4 2010-10-01 2010-10-01 false Publicizing/Advertising. 570.106 Section 570.106 Federal Acquisition Regulations System GENERAL SERVICES ADMINISTRATION SPECIAL CONTRACTING PROGRAMS ACQUIRING LEASEHOLD INTERESTS IN REAL PROPERTY General 570.106 Publicizing/Advertising...

  3. Magnesium and extinction of dinosaurs. Was magnesium deficit a major cause?

    PubMed

    Durlach, J

    1991-01-01

    Chinese researchers have recently demonstrated that, before the extinction of dinosaurs, there was an impressive lowering in the magnesium concentration of fossil dinosaur eggshell. The structural and functional importance of eggshell magnesium--mainly in the cone layer--for embryonic viability and hatchability of oviparous species supports the hypothesis that magnesium deficit may have had a direct role in dinosaur extinction. Conversely this low magnesium concentration seems a questionable marker of magnesium deficit. The natural forces involved in the extinction of dinosaurs are more likely to induce magnesium depletion than magnesium deficiency. These very interesting preliminary data call for further research.

  4. 48 CFR 2009.570-4 - Representation.

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ... 48 Federal Acquisition Regulations System 6 2011-10-01 2011-10-01 false Representation. 2009.570-4 Section 2009.570-4 Federal Acquisition Regulations System NUCLEAR REGULATORY COMMISSION COMPETITION AND ACQUISITION PLANNING CONTRACTOR QUALIFICATIONS Organizational Conflicts of Interest 2009.570-4 Representation...

  5. 25 CFR 162.570 - May the parties amend a WSR lease?

    Code of Federal Regulations, 2014 CFR

    2014-04-01

    ... 25 Indians 1 2014-04-01 2014-04-01 false May the parties amend a WSR lease? 162.570 Section 162.570 Indians BUREAU OF INDIAN AFFAIRS, DEPARTMENT OF THE INTERIOR LAND AND WATER LEASES AND PERMITS Wind and Solar Resource Leases Wsr Lease Amendments § 162.570 May the parties amend a WSR lease? The...

  6. 25 CFR 162.570 - May the parties amend a WSR lease?

    Code of Federal Regulations, 2013 CFR

    2013-04-01

    ... 25 Indians 1 2013-04-01 2013-04-01 false May the parties amend a WSR lease? 162.570 Section 162.570 Indians BUREAU OF INDIAN AFFAIRS, DEPARTMENT OF THE INTERIOR LAND AND WATER LEASES AND PERMITS Wind and Solar Resource Leases Wsr Lease Amendments § 162.570 May the parties amend a WSR lease? The...

  7. Magnetization Analysis of Magnesium Boride Wires

    NASA Astrophysics Data System (ADS)

    Cave, J. R.; Zhu, W.

    2006-03-01

    Cycled applied field magnetization curves contain a wealth of information on critical current density and flux pinning that is not commonly exploited. Detailed magnetization data for magnesium boride wire cores have been analyzed for critical state model consistency. The iron-sheathed silicon nitride doped magnesium boride wires were prepared from pure magnesium and boron powders with nano-scale silicon nitride additions (MgB2-x(Si3N4)x/7 with x = 0 - 0.4). A subsequent short annealing heat treatment, 800 degrees C and of 1 hour duration in Argon, was applied to create the desired phase. Magnetization critical current densities were up to ˜340 kA/cm2 at 5K and 1T. Major and minor loop analysis will be described, for field sweeps up to 3 tesla at fixed temperatures and for temperature sweeps from 5K to 45K in fixed fields, with respect to parameters describing the critical state model.

  8. 48 CFR 570.302 - Description of requirements.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... the lease. (2) Functional, performance, or physical requirements. (3) Any special requirements. (4... requirements. 570.302 Section 570.302 Federal Acquisition Regulations System GENERAL SERVICES ADMINISTRATION... Leasehold Interests in Real Property 570.302 Description of requirements. (a) The description of...

  9. Recycling of Magnesium Alloy Employing Refining and Solid Oxide Membrane (SOM) Electrolysis

    NASA Astrophysics Data System (ADS)

    Guan, Xiaofei; Zink, Peter A.; Pal, Uday B.; Powell, Adam C.

    2013-04-01

    Pure magnesium was recycled from partially oxidized 50.5 wt pct Mg-Al scrap alloy and AZ91 Mg alloy (9 wt pct Al, 1 wt pct Zn). Refining experiments were performed using a eutectic mixture of MgF2-CaF2 molten salt (flux). During the experiments, potentiodynamic scans were performed to determine the electrorefining potentials for magnesium dissolution and magnesium bubble nucleation in the flux. The measured electrorefining potential for magnesium bubble nucleation increased over time as the magnesium content inside the magnesium alloy decreased. Potentiostatic holds and electrochemical impedance spectroscopy were employed to measure the electronic and ionic resistances of the flux. The electronic resistivity of the flux varied inversely with the magnesium solubility. Up to 100 pct of the magnesium was refined from the Mg-Al scrap alloy by dissolving magnesium and its oxide into the flux followed by argon-assisted evaporation of dissolved magnesium and subsequently condensing the magnesium vapor. Solid oxide membrane electrolysis was also employed in the system to enable additional magnesium recovery from magnesium oxide in the partially oxidized Mg-Al scrap. In an experiment employing AZ91 Mg alloy, only the refining step was carried out. The calculated refining yield of magnesium from the AZ91 alloy was near 100 pct.

  10. 30 CFR 570.4 - Discrimination prohibited.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... 30 Mineral Resources 2 2013-07-01 2013-07-01 false Discrimination prohibited. 570.4 Section 570.4 Mineral Resources BUREAU OF OCEAN ENERGY MANAGEMENT, DEPARTMENT OF THE INTERIOR OFFSHORE NONDISCRIMINATION IN THE OUTER CONTINENTAL SHELF § 570.4 Discrimination prohibited. No contract or subcontract to which...

  11. 30 CFR 570.4 - Discrimination prohibited.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... 30 Mineral Resources 2 2014-07-01 2014-07-01 false Discrimination prohibited. 570.4 Section 570.4 Mineral Resources BUREAU OF OCEAN ENERGY MANAGEMENT, DEPARTMENT OF THE INTERIOR OFFSHORE NONDISCRIMINATION IN THE OUTER CONTINENTAL SHELF § 570.4 Discrimination prohibited. No contract or subcontract to which...

  12. 30 CFR 570.4 - Discrimination prohibited.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... 30 Mineral Resources 2 2012-07-01 2012-07-01 false Discrimination prohibited. 570.4 Section 570.4 Mineral Resources BUREAU OF OCEAN ENERGY MANAGEMENT, DEPARTMENT OF THE INTERIOR OFFSHORE NONDISCRIMINATION IN THE OUTER CONTINENTAL SHELF § 570.4 Discrimination prohibited. No contract or subcontract to which...

  13. 48 CFR 570.307 - Negotiations.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... 48 Federal Acquisition Regulations System 4 2010-10-01 2010-10-01 false Negotiations. 570.307... Real Property 570.307 Negotiations. (a) Follow the procedures in FAR 15.306 and 15.307 for exchanges (including clarifications, communications, negotiations, discussions, and revisions). (b) Place a written...

  14. 48 CFR 570.203-1 - Market survey.

    Code of Federal Regulations, 2012 CFR

    2012-10-01

    ... 48 Federal Acquisition Regulations System 4 2012-10-01 2012-10-01 false Market survey. 570.203-1 Section 570.203-1 Federal Acquisition Regulations System GENERAL SERVICES ADMINISTRATION SPECIAL... 570.203-1 Market survey. Conduct a market survey to identify potential sources. Use information...

  15. 48 CFR 570.203-1 - Market survey.

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ... 48 Federal Acquisition Regulations System 4 2013-10-01 2013-10-01 false Market survey. 570.203-1 Section 570.203-1 Federal Acquisition Regulations System GENERAL SERVICES ADMINISTRATION SPECIAL... 570.203-1 Market survey. Conduct a market survey to identify potential sources. Use information...

  16. 48 CFR 570.203-1 - Market survey.

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ... 48 Federal Acquisition Regulations System 4 2014-10-01 2014-10-01 false Market survey. 570.203-1 Section 570.203-1 Federal Acquisition Regulations System GENERAL SERVICES ADMINISTRATION SPECIAL... 570.203-1 Market survey. Conduct a market survey to identify potential sources. Use information...

  17. 48 CFR 570.203-1 - Market survey.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... 48 Federal Acquisition Regulations System 4 2010-10-01 2010-10-01 false Market survey. 570.203-1 Section 570.203-1 Federal Acquisition Regulations System GENERAL SERVICES ADMINISTRATION SPECIAL... 570.203-1 Market survey. Conduct a market survey to identify potential sources. Use information...

  18. 48 CFR 570.203-1 - Market survey.

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ... 48 Federal Acquisition Regulations System 4 2011-10-01 2011-10-01 false Market survey. 570.203-1 Section 570.203-1 Federal Acquisition Regulations System GENERAL SERVICES ADMINISTRATION SPECIAL... 570.203-1 Market survey. Conduct a market survey to identify potential sources. Use information...

  19. 48 CFR 570.402-2 - Publicizing/Advertising.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... 48 Federal Acquisition Regulations System 4 2010-10-01 2010-10-01 false Publicizing/Advertising. 570.402-2 Section 570.402-2 Federal Acquisition Regulations System GENERAL SERVICES ADMINISTRATION... for Continued Space Requirements 570.402-2 Publicizing/Advertising. Publish a notice if required by...

  20. 47 CFR 74.832 - Licensing requirements and procedures.

    Code of Federal Regulations, 2012 CFR

    2012-10-01

    ... Stations § 74.832 Licensing requirements and procedures. (a) A license authorizing operation of one or more low power auxiliary stations will be issued only to the following: (1) A licensee of an AM, FM, TV, or International broadcast station or low power TV station. Low power auxiliary stations will be licensed for used...

  1. 47 CFR 74.832 - Licensing requirements and procedures.

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ... Stations § 74.832 Licensing requirements and procedures. (a) A license authorizing operation of one or more low power auxiliary stations will be issued only to the following: (1) A licensee of an AM, FM, TV, or International broadcast station or low power TV station. Low power auxiliary stations will be licensed for used...

  2. 47 CFR 74.832 - Licensing requirements and procedures.

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ... Stations § 74.832 Licensing requirements and procedures. (a) A license authorizing operation of one or more low power auxiliary stations will be issued only to the following: (1) A licensee of an AM, FM, TV, or International broadcast station or low power TV station. Low power auxiliary stations will be licensed for used...

  3. 47 CFR 74.832 - Licensing requirements and procedures.

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ... Stations § 74.832 Licensing requirements and procedures. (a) A license authorizing operation of one or more low power auxiliary stations will be issued only to the following: (1) A licensee of an AM, FM, TV, or International broadcast station or low power TV station. Low power auxiliary stations will be licensed for used...

  4. 47 CFR 74.832 - Licensing requirements and procedures.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... Stations § 74.832 Licensing requirements and procedures. (a) A license authorizing operation of one or more low power auxiliary stations will be issued only to the following: (1) A licensee of an AM, FM, TV, or International broadcast station or low power TV station. Low power auxiliary stations will be licensed for used...

  5. 48 CFR 570.307 - Negotiations.

    Code of Federal Regulations, 2012 CFR

    2012-10-01

    ... 48 Federal Acquisition Regulations System 4 2012-10-01 2012-10-01 false Negotiations. 570.307... Real Property Over the Simplified Lease Acquisition Threshold 570.307 Negotiations. (a) Follow the procedures in FAR 15.306 and 15.307 for exchanges (including clarifications, communications, negotiations...

  6. 48 CFR 570.307 - Negotiations.

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ... 48 Federal Acquisition Regulations System 4 2011-10-01 2011-10-01 false Negotiations. 570.307... Real Property Over the Simplified Lease Acquisition Threshold 570.307 Negotiations. (a) Follow the procedures in FAR 15.306 and 15.307 for exchanges (including clarifications, communications, negotiations...

  7. 48 CFR 570.307 - Negotiations.

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ... 48 Federal Acquisition Regulations System 4 2013-10-01 2013-10-01 false Negotiations. 570.307... Real Property Over the Simplified Lease Acquisition Threshold 570.307 Negotiations. (a) Follow the procedures in FAR 15.306 and 15.307 for exchanges (including clarifications, communications, negotiations...

  8. 48 CFR 570.307 - Negotiations.

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ... 48 Federal Acquisition Regulations System 4 2014-10-01 2014-10-01 false Negotiations. 570.307... Real Property Over the Simplified Lease Acquisition Threshold 570.307 Negotiations. (a) Follow the procedures in FAR 15.306 and 15.307 for exchanges (including clarifications, communications, negotiations...

  9. 46 CFR 28.570 - Intact righting energy.

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ... 46 Shipping 1 2014-10-01 2014-10-01 false Intact righting energy. 28.570 Section 28.570 Shipping COAST GUARD, DEPARTMENT OF HOMELAND SECURITY UNINSPECTED VESSELS REQUIREMENTS FOR COMMERCIAL FISHING INDUSTRY VESSELS Stability § 28.570 Intact righting energy. (a) Except as provided in paragraph (c) of this...

  10. 46 CFR 28.570 - Intact righting energy.

    Code of Federal Regulations, 2012 CFR

    2012-10-01

    ... 46 Shipping 1 2012-10-01 2012-10-01 false Intact righting energy. 28.570 Section 28.570 Shipping COAST GUARD, DEPARTMENT OF HOMELAND SECURITY UNINSPECTED VESSELS REQUIREMENTS FOR COMMERCIAL FISHING INDUSTRY VESSELS Stability § 28.570 Intact righting energy. (a) Except as provided in paragraph (c) of this...

  11. 46 CFR 28.570 - Intact righting energy.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... 46 Shipping 1 2010-10-01 2010-10-01 false Intact righting energy. 28.570 Section 28.570 Shipping COAST GUARD, DEPARTMENT OF HOMELAND SECURITY UNINSPECTED VESSELS REQUIREMENTS FOR COMMERCIAL FISHING INDUSTRY VESSELS Stability § 28.570 Intact righting energy. (a) Except as provided in paragraph (c) of this...

  12. 46 CFR 28.570 - Intact righting energy.

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ... 46 Shipping 1 2011-10-01 2011-10-01 false Intact righting energy. 28.570 Section 28.570 Shipping COAST GUARD, DEPARTMENT OF HOMELAND SECURITY UNINSPECTED VESSELS REQUIREMENTS FOR COMMERCIAL FISHING INDUSTRY VESSELS Stability § 28.570 Intact righting energy. (a) Except as provided in paragraph (c) of this...

  13. 46 CFR 28.570 - Intact righting energy.

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ... 46 Shipping 1 2013-10-01 2013-10-01 false Intact righting energy. 28.570 Section 28.570 Shipping COAST GUARD, DEPARTMENT OF HOMELAND SECURITY UNINSPECTED VESSELS REQUIREMENTS FOR COMMERCIAL FISHING INDUSTRY VESSELS Stability § 28.570 Intact righting energy. (a) Except as provided in paragraph (c) of this...

  14. 29 CFR 570.37 - Work-study program.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... 29 Labor 3 2011-07-01 2011-07-01 false Work-study program. 570.37 Section 570.37 Labor Regulations... (Child Labor Reg. 3) § 570.37 Work-study program. (a) This section varies the provisions contained in... employed pursuant to a school-supervised and school-administered work-study program that meets the...

  15. 40 CFR 35.570 - Purpose.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... Protection of Environment ENVIRONMENTAL PROTECTION AGENCY GRANTS AND OTHER FEDERAL ASSISTANCE STATE AND LOCAL ASSISTANCE Environmental Program Grants for Tribes Air Pollution Control (section 105) § 35.570 Purpose. (a) Purpose of section. Sections 35.570 through 35.578 govern air pollution control grants to Tribes (as...

  16. 40 CFR 35.570 - Purpose.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... Protection of Environment ENVIRONMENTAL PROTECTION AGENCY GRANTS AND OTHER FEDERAL ASSISTANCE STATE AND LOCAL ASSISTANCE Environmental Program Grants for Tribes Air Pollution Control (section 105) § 35.570 Purpose. (a) Purpose of section. Sections 35.570 through 35.578 govern air pollution control grants to Tribes (as...

  17. In vitro degradation of pure Mg in response to glucose

    NASA Astrophysics Data System (ADS)

    Zeng, Rong-Chang; Li, Xiao-Ting; Li, Shuo-Qi; Zhang, Fen; Han, En-Hou

    2015-08-01

    Magnesium and its alloys are promising biodegradable biomaterials but are still challenging to be used in person with high levels of blood glucose or diabetes. To date, the influence of glucose on magnesium degradation has not yet been elucidated, this issue requires more attention. Herein, we present pure Mg exhibiting different corrosion responses to saline and Hank’s solutions with different glucose contents, and the degradation mechanism of pure Mg in the saline solution with glucose in comparison with mannitol as a control. On one hand, the corrosion rate of pure Mg increases with the glucose concentration in saline solutions. Glucose rapidly transforms into gluconic acid, which attacks the oxides of the metal and decreases the pH of the solution; it also promotes the absorption of chloride ions on the Mg surface and consequently accelerates corrosion. On the other hand, better corrosion resistance is obtained with increasing glucose content in Hank’s solution due to the fact that glucose coordinates Ca2+ ions in Hank’s solution and thus improves the formation of Ca-P compounds on the pure Mg surface. This finding will open up new avenues for research on the biodegradation of bio-Mg materials in general, which could yield many new and interesting results.

  18. In vitro degradation of pure Mg in response to glucose

    PubMed Central

    Zeng, Rong-Chang; Li, Xiao-Ting; Li, Shuo-Qi; Zhang, Fen; Han, En-Hou

    2015-01-01

    Magnesium and its alloys are promising biodegradable biomaterials but are still challenging to be used in person with high levels of blood glucose or diabetes. To date, the influence of glucose on magnesium degradation has not yet been elucidated, this issue requires more attention. Herein, we present pure Mg exhibiting different corrosion responses to saline and Hank’s solutions with different glucose contents, and the degradation mechanism of pure Mg in the saline solution with glucose in comparison with mannitol as a control. On one hand, the corrosion rate of pure Mg increases with the glucose concentration in saline solutions. Glucose rapidly transforms into gluconic acid, which attacks the oxides of the metal and decreases the pH of the solution; it also promotes the absorption of chloride ions on the Mg surface and consequently accelerates corrosion. On the other hand, better corrosion resistance is obtained with increasing glucose content in Hank’s solution due to the fact that glucose coordinates Ca2+ ions in Hank’s solution and thus improves the formation of Ca-P compounds on the pure Mg surface. This finding will open up new avenues for research on the biodegradation of bio-Mg materials in general, which could yield many new and interesting results. PMID:26264413

  19. 49 CFR 570.58 - Electric brake system.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... 49 Transportation 6 2010-10-01 2010-10-01 false Electric brake system. 570.58 Section 570.58... 10,000 Pounds § 570.58 Electric brake system. (a) Electric brake system integrity. The average brake... reading by the number of brakes and determine the brake amperage value. (b) Electric brake wiring...

  20. 49 CFR 570.58 - Electric brake system.

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ... 49 Transportation 6 2014-10-01 2014-10-01 false Electric brake system. 570.58 Section 570.58... 10,000 Pounds § 570.58 Electric brake system. (a) Electric brake system integrity. The average brake... reading by the number of brakes and determine the brake amperage value. (b) Electric brake wiring...

  1. 49 CFR 570.58 - Electric brake system.

    Code of Federal Regulations, 2012 CFR

    2012-10-01

    ... 49 Transportation 6 2012-10-01 2012-10-01 false Electric brake system. 570.58 Section 570.58... 10,000 Pounds § 570.58 Electric brake system. (a) Electric brake system integrity. The average brake... reading by the number of brakes and determine the brake amperage value. (b) Electric brake wiring...

  2. 49 CFR 570.58 - Electric brake system.

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ... missing. Terminal connections shall be clean. Conductor wire gauge shall not be below the brake... 49 Transportation 6 2013-10-01 2013-10-01 false Electric brake system. 570.58 Section 570.58... 10,000 Pounds § 570.58 Electric brake system. (a) Electric brake system integrity. The average brake...

  3. [Single cell gel electrophoresis of a magnesium alloy coated with beta-tricalcium phosphate].

    PubMed

    Hao, Yu-quan; Tan, Li-li; Yan, Ting-ting; Yan, Xiu-lin; Yang, Ke; Ai, Hong-jun

    2009-10-01

    To evaluate the genotoxicity of a magnesium alloy coated with beta-tricalcium phosphate (beta-TCP). Four groups were designed. In the first group, AZ31B magnesium alloy surface was coated with beta-TCP using chemical bath deposition, and in the second group magnesium alloy was tested. The other two groups were negative control (pure titanium) and positive control groups (0.5 mg/L bleomycin). Single cell gel electrophoresis was adopted to investigate genotoxicity of the alloy samples in different groups, and 60 cells from each group were analysed. Tail moment and tail DNA percentage were used as reliable indicators to show DNA damage in lymphocytes induced by every testing sample. Student-Newman-Keuls (SNK) test was used to compare results from 4 groups. There were no significant differences in tail moment and tail DNA percentage between magnesium alloy group [(0.52 +/- 0.12), (6.82 +/- 1.81)%] and magnesium alloy coated with beta-TCP group [(0.51 +/- 0.12), (6.89 +/- 1.93)%, P > 0.05]. Tail moment and tail DNA percentage in negative group were (0.47 +/- 0.14) and (6.29 +/- 1.64)%, and tail moment and tail DNA percentage in positive group were (5.17 +/- 1.23) and (22.09 +/- 4.51)%. No significant increase was found in DNA damage in lymphocytes induced by magnesium alloy coated with beta-TCP.

  4. 49 CFR 570.6 - Brake power unit.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... 49 Transportation 6 2010-10-01 2010-10-01 false Brake power unit. 570.6 Section 570.6... Pounds or Less § 570.6 Brake power unit. (a) Vacuum hoses shall not be collapsed, abraded, broken... brake pedal, the pedal shall fall slightly when the engine is started, demonstrating integrity of the...

  5. 49 CFR 570.6 - Brake power unit.

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ... 49 Transportation 6 2011-10-01 2011-10-01 false Brake power unit. 570.6 Section 570.6... Pounds or Less § 570.6 Brake power unit. (a) Vacuum hoses shall not be collapsed, abraded, broken... power assist system. This test is not applicable to vehicles equipped with full power brake system as...

  6. Preparation of magnesium metal matrix composites by powder metallurgy process

    NASA Astrophysics Data System (ADS)

    Satish, J.; Satish, K. G., Dr.

    2018-02-01

    Magnesium is the lightest metal used as the source for constructional alloys. Today Magnesium based metal matrix composites are widely used in aerospace, structural, oceanic and automobile applications for its light weight, low density(two thirds that of aluminium), good high temperature mechanical properties and good to excellent corrosion resistance. The reason of designing metal matrix composite is to put in the attractive attributes of metals and ceramics to the base metal. In this study magnesium metal matrix hybrid composite are developed by reinforcing pure magnesium with silicon carbide (SiC) and aluminium oxide by method of powder metallurgy. This method is less expensive and very efficient. The Hardness test was performed on the specimens prepared by powder metallurgy method. The results revealed that the micro hardness of composites was increased with the addition of silicon carbide and alumina particles in magnesium metal matrix composites.

  7. Magnesium-aspartate-based crystallization switch inspired from shell molt of crustacean

    PubMed Central

    Tao, Jinhui; Zhou, Dongming; Zhang, Zhisen; Xu, Xurong; Tang, Ruikang

    2009-01-01

    Many animals such as crustacean periodically undergo cyclic molt of the exoskeleton. During this process, amorphous calcium mineral phases are biologically stabilized by magnesium and are reserved for the subsequent rapid formation of new shell tissue. However, it is a mystery how living organisms can regulate the transition of the precursor phases precisely. We reveal that the shell mineralization from the magnesium stabilized precursors is associated with the presence of Asp-rich proteins. It is suggested that a cooperative effect of magnesium and Asp-rich compound can result into a crystallization switch in biomineralization. Our in vitro experiments confirm that magnesium increases the lifetime of amorphous calcium carbonate and calcium phosphate in solution so that the crystallization can be temporarily switched off. Although Asp monomer alone inhibits the crystallization of pure amorphous calcium minerals, it actually reduces the stability of the magnesium-stabilized precursors to switch on the transformation from the amorphous to crystallized phases. These modification effects on crystallization kinetics can be understood by an Asp-enhanced magnesium desolvation model. The interesting magnesium-Asp-based switch is a biologically inspired lesson from nature, which can be developed into an advanced strategy to control material fabrications. PMID:20007788

  8. Magnesium-aspartate-based crystallization switch inspired from shell molt of crustacean.

    PubMed

    Tao, Jinhui; Zhou, Dongming; Zhang, Zhisen; Xu, Xurong; Tang, Ruikang

    2009-12-29

    Many animals such as crustacean periodically undergo cyclic molt of the exoskeleton. During this process, amorphous calcium mineral phases are biologically stabilized by magnesium and are reserved for the subsequent rapid formation of new shell tissue. However, it is a mystery how living organisms can regulate the transition of the precursor phases precisely. We reveal that the shell mineralization from the magnesium stabilized precursors is associated with the presence of Asp-rich proteins. It is suggested that a cooperative effect of magnesium and Asp-rich compound can result into a crystallization switch in biomineralization. Our in vitro experiments confirm that magnesium increases the lifetime of amorphous calcium carbonate and calcium phosphate in solution so that the crystallization can be temporarily switched off. Although Asp monomer alone inhibits the crystallization of pure amorphous calcium minerals, it actually reduces the stability of the magnesium-stabilized precursors to switch on the transformation from the amorphous to crystallized phases. These modification effects on crystallization kinetics can be understood by an Asp-enhanced magnesium desolvation model. The interesting magnesium-Asp-based switch is a biologically inspired lesson from nature, which can be developed into an advanced strategy to control material fabrications.

  9. 29 CFR 570.141 - Good faith defense.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... 29 Labor 3 2011-07-01 2011-07-01 false Good faith defense. 570.141 Section 570.141 Labor... Provisions of the Fair Labor Standards Act of 1938, as Amended Enforcement § 570.141 Good faith defense. A... ships or delivers for shipment in commerce goods which he acquired in good faith in reliance on written...

  10. 29 CFR 570.141 - Good faith defense.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... 29 Labor 3 2013-07-01 2013-07-01 false Good faith defense. 570.141 Section 570.141 Labor... Provisions of the Fair Labor Standards Act of 1938, as Amended Enforcement § 570.141 Good faith defense. A... ships or delivers for shipment in commerce goods which he acquired in good faith in reliance on written...

  11. 29 CFR 570.141 - Good faith defense.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... 29 Labor 3 2014-07-01 2014-07-01 false Good faith defense. 570.141 Section 570.141 Labor... Provisions of the Fair Labor Standards Act of 1938, as Amended Enforcement § 570.141 Good faith defense. A... ships or delivers for shipment in commerce goods which he acquired in good faith in reliance on written...

  12. 29 CFR 570.141 - Good faith defense.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... 29 Labor 3 2012-07-01 2012-07-01 false Good faith defense. 570.141 Section 570.141 Labor... Provisions of the Fair Labor Standards Act of 1938, as Amended Enforcement § 570.141 Good faith defense. A... ships or delivers for shipment in commerce goods which he acquired in good faith in reliance on written...

  13. A hydrous Ca-bearing magnesium carbonate from playa lake sediments, Salines Lake, Spain

    USGS Publications Warehouse

    Queralt, I.; Julia, R.; Plana, F.; Bischoff, J.L.

    1997-01-01

    Sediments of playa Lake Salines, SE, Spain, contain a carbonate mineral characterized by X-ray diffraction peaks very similar to, but systematically shifted from those of pure magnesite. Analyses (SEM, IR and Raman spectroscopy, DTA, TGA, and ICP) indicate the mineral is a hydrous Ca-bearing magnesium carbonate with the chemical formula (Mg0.92,Ca0.08)CO3??3H2O. Thermal characteristics of the mineral are similar to those of other known hydrated magnesium carbonates. X-ray and electron diffraction data suggests a monoclinic system (P21/n space group) with unit-cell parameters of a = 6.063(6), b = 10.668(5), and c = 6.014(4) A?? and ?? = 107.28??.

  14. 48 CFR 570.308 - Award.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... 48 Federal Acquisition Regulations System 4 2010-10-01 2010-10-01 false Award. 570.308 Section 570.308 Federal Acquisition Regulations System GENERAL SERVICES ADMINISTRATION SPECIAL CONTRACTING PROGRAMS ACQUIRING LEASEHOLD INTERESTS IN REAL PROPERTY Contracting Procedures for Leasehold Interests in...

  15. 48 CFR 570.402-2 - Publicizing/Advertising.

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ... 48 Federal Acquisition Regulations System 4 2011-10-01 2011-10-01 false Publicizing/Advertising. 570.402-2 Section 570.402-2 Federal Acquisition Regulations System GENERAL SERVICES ADMINISTRATION... for Continued Space Requirements 570.402-2 Publicizing/Advertising. The contracting officer must...

  16. 48 CFR 570.402-2 - Publicizing/Advertising.

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ... 48 Federal Acquisition Regulations System 4 2014-10-01 2014-10-01 false Publicizing/Advertising. 570.402-2 Section 570.402-2 Federal Acquisition Regulations System GENERAL SERVICES ADMINISTRATION... for Continued Space Requirements 570.402-2 Publicizing/Advertising. The contracting officer must...

  17. 48 CFR 570.402-2 - Publicizing/Advertising.

    Code of Federal Regulations, 2012 CFR

    2012-10-01

    ... 48 Federal Acquisition Regulations System 4 2012-10-01 2012-10-01 false Publicizing/Advertising. 570.402-2 Section 570.402-2 Federal Acquisition Regulations System GENERAL SERVICES ADMINISTRATION... for Continued Space Requirements 570.402-2 Publicizing/Advertising. The contracting officer must...

  18. 48 CFR 570.402-2 - Publicizing/Advertising.

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ... 48 Federal Acquisition Regulations System 4 2013-10-01 2013-10-01 false Publicizing/Advertising. 570.402-2 Section 570.402-2 Federal Acquisition Regulations System GENERAL SERVICES ADMINISTRATION... for Continued Space Requirements 570.402-2 Publicizing/Advertising. The contracting officer must...

  19. 28 CFR 570.20 - Purpose.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 28 Judicial Administration 2 2010-07-01 2010-07-01 false Purpose. 570.20 Section 570.20 Judicial Administration BUREAU OF PRISONS, DEPARTMENT OF JUSTICE COMMUNITY PROGRAMS AND RELEASE COMMUNITY PROGRAMS Pre... employment, employment search efforts, community service, vocational training, treatment, educational...

  20. 48 CFR 836.570 - Correspondence.

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ... 48 Federal Acquisition Regulations System 5 2011-10-01 2011-10-01 false Correspondence. 836.570... OF CONTRACTING CONSTRUCTION AND ARCHITECT-ENGINEER CONTRACTS Contract Clauses 836.570 Correspondence. The contracting officer shall insert the clause at 852.236-76, Correspondence, in solicitations and...

  1. 48 CFR 570.202 - Policy.

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ... 48 Federal Acquisition Regulations System 4 2011-10-01 2011-10-01 false Policy. 570.202 Section 570.202 Federal Acquisition Regulations System GENERAL SERVICES ADMINISTRATION SPECIAL CONTRACTING... Policy. Use simplified lease acquisition procedures to the maximum extent practicable for actions at or...

  2. In vitro corrosion and biocompatibility of binary magnesium alloys.

    PubMed

    Gu, Xuenan; Zheng, Yufeng; Cheng, Yan; Zhong, Shengping; Xi, Tingfei

    2009-02-01

    As bioabsorbable materials, magnesium alloys are expected to be totally degraded in the body and their biocorrosion products not deleterious to the surrounding tissues. It's critical that the alloying elements are carefully selected in consideration of their cytotoxicity and hemocompatibility. In the present study, nine alloying elements Al, Ag, In, Mn, Si, Sn, Y, Zn and Zr were added into magnesium individually to fabricate binary Mg-1X (wt.%) alloys. Pure magnesium was used as control. Their mechanical properties, corrosion properties and in vitro biocompatibilities (cytotoxicity and hemocompatibility) were evaluated by SEM, XRD, tensile test, immersion test, electrochemical corrosion test, cell culture and platelet adhesion test. The results showed that the addition of alloying elements could influence the strength and corrosion resistance of Mg. The cytotoxicity tests indicated that Mg-1Al, Mg-1Sn and Mg-1Zn alloy extracts showed no significant reduced cell viability to fibroblasts (L-929 and NIH3T3) and osteoblasts (MC3T3-E1); Mg-1Al and Mg-1Zn alloy extracts indicated no negative effect on viabilities of blood vessel related cells, ECV304 and VSMC. It was found that hemolysis and the amount of adhered platelets decreased after alloying for all Mg-1X alloys as compared to the pure magnesium control. The relationship between the corrosion products and the in vitro biocompatibility had been discussed and the suitable alloying elements for the biomedical applications associated with bone and blood vessel had been proposed.

  3. 48 CFR 570.102 - Definitions.

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ... profit, is independently-owned and operated, is not dominant in the field of leasing commercial real... 48 Federal Acquisition Regulations System 4 2013-10-01 2013-10-01 false Definitions. 570.102 Section 570.102 Federal Acquisition Regulations System GENERAL SERVICES ADMINISTRATION SPECIAL CONTRACTING...

  4. 48 CFR 570.102 - Definitions.

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ... profit, is independently-owned and operated, is not dominant in the field of leasing commercial real... 48 Federal Acquisition Regulations System 4 2014-10-01 2014-10-01 false Definitions. 570.102 Section 570.102 Federal Acquisition Regulations System GENERAL SERVICES ADMINISTRATION SPECIAL CONTRACTING...

  5. 48 CFR 570.102 - Definitions.

    Code of Federal Regulations, 2012 CFR

    2012-10-01

    ... profit, is independently-owned and operated, is not dominant in the field of leasing commercial real... 48 Federal Acquisition Regulations System 4 2012-10-01 2012-10-01 false Definitions. 570.102 Section 570.102 Federal Acquisition Regulations System GENERAL SERVICES ADMINISTRATION SPECIAL CONTRACTING...

  6. 48 CFR 570.102 - Definitions.

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ... profit, is independently-owned and operated, is not dominant in the field of leasing commercial real... 48 Federal Acquisition Regulations System 4 2011-10-01 2011-10-01 false Definitions. 570.102 Section 570.102 Federal Acquisition Regulations System GENERAL SERVICES ADMINISTRATION SPECIAL CONTRACTING...

  7. 24 CFR 570.303 - Certifications.

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ... 24 Housing and Urban Development 3 2011-04-01 2010-04-01 true Certifications. 570.303 Section 570.303 Housing and Urban Development Regulations Relating to Housing and Urban Development (Continued) OFFICE OF ASSISTANT SECRETARY FOR COMMUNITY PLANNING AND DEVELOPMENT, DEPARTMENT OF HOUSING AND URBAN...

  8. 24 CFR 570.303 - Certifications.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ... 24 Housing and Urban Development 3 2010-04-01 2010-04-01 false Certifications. 570.303 Section 570.303 Housing and Urban Development Regulations Relating to Housing and Urban Development (Continued) OFFICE OF ASSISTANT SECRETARY FOR COMMUNITY PLANNING AND DEVELOPMENT, DEPARTMENT OF HOUSING AND URBAN...

  9. 48 CFR 3004.804-570 - Supporting closeout documents.

    Code of Federal Regulations, 2012 CFR

    2012-10-01

    ... 48 Federal Acquisition Regulations System 7 2012-10-01 2012-10-01 false Supporting closeout documents. 3004.804-570 Section 3004.804-570 Federal Acquisition Regulations System DEPARTMENT OF HOMELAND... Contract Files 3004.804-570 Supporting closeout documents. (a) When applicable and prior to contract...

  10. 48 CFR 3004.804-570 - Supporting closeout documents.

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ... 48 Federal Acquisition Regulations System 7 2011-10-01 2011-10-01 false Supporting closeout documents. 3004.804-570 Section 3004.804-570 Federal Acquisition Regulations System DEPARTMENT OF HOMELAND... Contract Files 3004.804-570 Supporting closeout documents. (a) When applicable and prior to contract...

  11. 48 CFR 1813.302-570 - NASA solicitation provisions.

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ... 48 Federal Acquisition Regulations System 6 2014-10-01 2014-10-01 false NASA solicitation provisions. 1813.302-570 Section 1813.302-570 Federal Acquisition Regulations System NATIONAL AERONAUTICS AND... Acquisition Methods 1813.302-570 NASA solicitation provisions. (a)(1) The contracting officer may use the...

  12. 48 CFR 1813.302-570 - NASA solicitation provisions.

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ... 48 Federal Acquisition Regulations System 6 2011-10-01 2011-10-01 false NASA solicitation provisions. 1813.302-570 Section 1813.302-570 Federal Acquisition Regulations System NATIONAL AERONAUTICS AND... Acquisition Methods 1813.302-570 NASA solicitation provisions. (a)(1) The contracting officer may use the...

  13. 48 CFR 1813.302-570 - NASA solicitation provisions.

    Code of Federal Regulations, 2012 CFR

    2012-10-01

    ... 48 Federal Acquisition Regulations System 6 2012-10-01 2012-10-01 false NASA solicitation provisions. 1813.302-570 Section 1813.302-570 Federal Acquisition Regulations System NATIONAL AERONAUTICS AND... Acquisition Methods 1813.302-570 NASA solicitation provisions. (a)(1) The contracting officer may use the...

  14. 48 CFR 1813.302-570 - NASA solicitation provisions.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... 48 Federal Acquisition Regulations System 6 2010-10-01 2010-10-01 true NASA solicitation provisions. 1813.302-570 Section 1813.302-570 Federal Acquisition Regulations System NATIONAL AERONAUTICS AND... Acquisition Methods 1813.302-570 NASA solicitation provisions. (a)(1) The contracting officer may use the...

  15. 48 CFR 1813.302-570 - NASA solicitation provisions.

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ... 48 Federal Acquisition Regulations System 6 2013-10-01 2013-10-01 false NASA solicitation provisions. 1813.302-570 Section 1813.302-570 Federal Acquisition Regulations System NATIONAL AERONAUTICS AND... Acquisition Methods 1813.302-570 NASA solicitation provisions. (a)(1) The contracting officer may use the...

  16. 48 CFR 570.402-6 - Cost-benefit analysis.

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ... 48 Federal Acquisition Regulations System 4 2014-10-01 2014-10-01 false Cost-benefit analysis. 570.402-6 Section 570.402-6 Federal Acquisition Regulations System GENERAL SERVICES ADMINISTRATION SPECIAL... Continued Space Requirements 570.402-6 Cost-benefit analysis. (a) The cost-benefit analysis must consider...

  17. 48 CFR 570.402-6 - Cost-benefit analysis.

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ... 48 Federal Acquisition Regulations System 4 2011-10-01 2011-10-01 false Cost-benefit analysis. 570.402-6 Section 570.402-6 Federal Acquisition Regulations System GENERAL SERVICES ADMINISTRATION SPECIAL... Continued Space Requirements 570.402-6 Cost-benefit analysis. (a) The cost-benefit analysis must consider...

  18. 24 CFR 570.300 - General.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ... 24 Housing and Urban Development 3 2010-04-01 2010-04-01 false General. 570.300 Section 570.300 Housing and Urban Development Regulations Relating to Housing and Urban Development (Continued) OFFICE OF ASSISTANT SECRETARY FOR COMMUNITY PLANNING AND DEVELOPMENT, DEPARTMENT OF HOUSING AND URBAN DEVELOPMENT...

  19. 24 CFR 570.3 - Definitions.

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ... 24 Housing and Urban Development 3 2011-04-01 2010-04-01 true Definitions. 570.3 Section 570.3 Housing and Urban Development Regulations Relating to Housing and Urban Development (Continued) OFFICE OF ASSISTANT SECRETARY FOR COMMUNITY PLANNING AND DEVELOPMENT, DEPARTMENT OF HOUSING AND URBAN DEVELOPMENT...

  20. 24 CFR 570.5 - Waivers.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ... 24 Housing and Urban Development 3 2010-04-01 2010-04-01 false Waivers. 570.5 Section 570.5 Housing and Urban Development Regulations Relating to Housing and Urban Development (Continued) OFFICE OF ASSISTANT SECRETARY FOR COMMUNITY PLANNING AND DEVELOPMENT, DEPARTMENT OF HOUSING AND URBAN DEVELOPMENT...

  1. 24 CFR 570.300 - General.

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ... 24 Housing and Urban Development 3 2011-04-01 2010-04-01 true General. 570.300 Section 570.300 Housing and Urban Development Regulations Relating to Housing and Urban Development (Continued) OFFICE OF ASSISTANT SECRETARY FOR COMMUNITY PLANNING AND DEVELOPMENT, DEPARTMENT OF HOUSING AND URBAN DEVELOPMENT...

  2. 24 CFR 570.5 - Waivers.

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ... 24 Housing and Urban Development 3 2011-04-01 2010-04-01 true Waivers. 570.5 Section 570.5 Housing and Urban Development Regulations Relating to Housing and Urban Development (Continued) OFFICE OF ASSISTANT SECRETARY FOR COMMUNITY PLANNING AND DEVELOPMENT, DEPARTMENT OF HOUSING AND URBAN DEVELOPMENT...

  3. 24 CFR 570.400 - General.

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ... 24 Housing and Urban Development 3 2011-04-01 2010-04-01 true General. 570.400 Section 570.400 Housing and Urban Development Regulations Relating to Housing and Urban Development (Continued) OFFICE OF ASSISTANT SECRETARY FOR COMMUNITY PLANNING AND DEVELOPMENT, DEPARTMENT OF HOUSING AND URBAN DEVELOPMENT...

  4. 24 CFR 570.600 - General.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ... 24 Housing and Urban Development 3 2010-04-01 2010-04-01 false General. 570.600 Section 570.600 Housing and Urban Development Regulations Relating to Housing and Urban Development (Continued) OFFICE OF ASSISTANT SECRETARY FOR COMMUNITY PLANNING AND DEVELOPMENT, DEPARTMENT OF HOUSING AND URBAN DEVELOPMENT...

  5. 24 CFR 570.512 - [Reserved

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ... 24 Housing and Urban Development 3 2010-04-01 2010-04-01 false [Reserved] 570.512 Section 570.512 Housing and Urban Development Regulations Relating to Housing and Urban Development (Continued) OFFICE OF ASSISTANT SECRETARY FOR COMMUNITY PLANNING AND DEVELOPMENT, DEPARTMENT OF HOUSING AND URBAN DEVELOPMENT...

  6. 24 CFR 570.400 - General.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ... 24 Housing and Urban Development 3 2010-04-01 2010-04-01 false General. 570.400 Section 570.400 Housing and Urban Development Regulations Relating to Housing and Urban Development (Continued) OFFICE OF ASSISTANT SECRETARY FOR COMMUNITY PLANNING AND DEVELOPMENT, DEPARTMENT OF HOUSING AND URBAN DEVELOPMENT...

  7. Development INTERDATA 8/32 computer system

    NASA Technical Reports Server (NTRS)

    Sonett, C. P.

    1983-01-01

    The capabilities of the Interdata 8/32 minicomputer were examined regarding data and word processing, editing, retrieval, and budgeting as well as data management demands of the user groups in the network. Based on four projected needs: (1) a hands on (open shop) computer for data analysis with large core and disc capability; (2) the expected requirements of the NASA data networks; (3) the need for intermittent large core capacity for theoretical modeling; (4) the ability to access data rapidly either directly from tape or from core onto hard copy, the system proved useful and adequate for the planned requirements.

  8. 24 CFR 570.913 - Other remedies for noncompliance.

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ... 24 Housing and Urban Development 3 2011-04-01 2010-04-01 true Other remedies for noncompliance. 570.913 Section 570.913 Housing and Urban Development Regulations Relating to Housing and Urban... § 570.913 Other remedies for noncompliance. (a) Action to enforce compliance. When the Secretary acts to...

  9. 28 CFR 570.45 - Violation of escorted trip.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 28 Judicial Administration 2 2010-07-01 2010-07-01 false Violation of escorted trip. 570.45 Section 570.45 Judicial Administration BUREAU OF PRISONS, DEPARTMENT OF JUSTICE COMMUNITY PROGRAMS AND RELEASE COMMUNITY PROGRAMS Escorted Trips § 570.45 Violation of escorted trip. (a) Staff shall process as...

  10. 29 CFR 570.128 - Good faith defense.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 29 Labor 3 2010-07-01 2010-07-01 false Good faith defense. 570.128 Section 570.128 Labor Regulations Relating to Labor (Continued) WAGE AND HOUR DIVISION, DEPARTMENT OF LABOR REGULATIONS CHILD LABOR... Provisions of the Fair Labor Standards Act of 1938, as Amended Enforcement § 570.128 Good faith defense. Link...

  11. 48 CFR 803.570 - Commercial advertising.

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ... 48 Federal Acquisition Regulations System 5 2011-10-01 2011-10-01 false Commercial advertising. 803.570 Section 803.570 Federal Acquisition Regulations System DEPARTMENT OF VETERANS AFFAIRS GENERAL... Commercial advertising. ...

  12. 48 CFR 803.570 - Commercial advertising.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... 48 Federal Acquisition Regulations System 5 2010-10-01 2010-10-01 false Commercial advertising. 803.570 Section 803.570 Federal Acquisition Regulations System DEPARTMENT OF VETERANS AFFAIRS GENERAL... Commercial advertising. ...

  13. 48 CFR 803.570 - Commercial advertising.

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ... 48 Federal Acquisition Regulations System 5 2013-10-01 2013-10-01 false Commercial advertising. 803.570 Section 803.570 Federal Acquisition Regulations System DEPARTMENT OF VETERANS AFFAIRS GENERAL... Commercial advertising. ...

  14. 48 CFR 803.570 - Commercial advertising.

    Code of Federal Regulations, 2012 CFR

    2012-10-01

    ... 48 Federal Acquisition Regulations System 5 2012-10-01 2012-10-01 false Commercial advertising. 803.570 Section 803.570 Federal Acquisition Regulations System DEPARTMENT OF VETERANS AFFAIRS GENERAL... Commercial advertising. ...

  15. 48 CFR 803.570 - Commercial advertising.

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ... 48 Federal Acquisition Regulations System 5 2014-10-01 2014-10-01 false Commercial advertising. 803.570 Section 803.570 Federal Acquisition Regulations System DEPARTMENT OF VETERANS AFFAIRS GENERAL... Commercial advertising. ...

  16. Blood compatibility of magnesium and its alloys.

    PubMed

    Feyerabend, Frank; Wendel, Hans-Peter; Mihailova, Boriana; Heidrich, Stefanie; Agha, Nezha Ahmad; Bismayer, Ulrich; Willumeit-Römer, Regine

    2015-10-01

    Blood compatibility analysis in the field of biomaterials is a highly controversial topic. Especially for degradable materials like magnesium and its alloys no established test methods are available. The purpose of this study was to apply advanced test methodology for the analysis of degrading materials to get a mechanistic insight into the corrosion process in contact with human blood and plasma. Pure magnesium and two magnesium alloys were analysed in a modified Chandler-Loop setup. Standard clinical parameters were determined, and a thorough analysis of the resulting implant surface chemistry was performed. The contact of the materials to blood evoked an accelerated inflammatory and cell-induced osteoconductive reaction. Corrosion products formed indicate a more realistic, in vivo like situation. The active regulation of corrosion mechanisms of magnesium alloys by different cell types should be more in the focus of research to bridge the gap between in vitro and in vivo observations and to understand the mechanism of action. This in turn could lead to a better acceptance of these materials for implant applications. The presented study deals with the first mechanistic insights during whole human blood contact and its influence on a degrading magnesium-based biomaterial. The combination of clinical parameters and corrosion layer analysis has been performed for the first time. It could be of interest due to the intended use of magnesium-based stents and for orthopaedic applications for clinical applications. An interest for the readers of Acta Biomaterialia may be given, as one of the first clinically approved magnesium-based devices is a wound-closure device, which is in direct contact with blood. Moreover, for orthopaedic applications also blood contact is of high interest. Although this is not the focus of the manuscript, it could help to rise awareness for potential future applications. Copyright © 2015 Acta Materialia Inc. Published by Elsevier Ltd. All

  17. Enhancing overall tensile and compressive response of pure Mg using nano-TiB{sub 2} particulates

    DOE Office of Scientific and Technical Information (OSTI.GOV)

    Meenashisundaram, Ganesh Kumar; Seetharaman, Sankaranarayanan; Gupta, Manoj, E-mail: mpegm@nus.edu.sg

    2014-08-15

    A novel attempt is made to synthesize and study the isolated effects of less than two volume fraction TiB{sub 2} nanoparticulates (60 nm) on pure magnesium. New light weight Mg–TiB{sub 2} nanocomposites with superior mechanical properties compared to pure magnesium are synthesized using disintegrated melt deposition technique followed by hot extrusion. The microstructural characterization studies revealed that the samples exhibited fairly uniform distribution of TiB{sub 2} nanoparticulates with minimal porosity and good interfacial integrity between Mg matrix and TiB{sub 2} particulates. The coefficient of thermal expansion results indicates that the addition of 0.58, 0.97, and 1.98 vol.% TiB{sub 2} nanoparticulatesmore » marginally improves the dimensional stability of pure magnesium. A significant improvement in the room temperature tensile properties of pure magnesium was observed with the addition of less than two volume fraction TiB{sub 2} nanoparticulates. The synthesized Mg 1.98 vol.% TiB{sub 2} nanocomposite revealed the best room temperature tensile properties with a significant increase in the 0.2% tensile yield strength by ∼ 54%, ultimate tensile strength by ∼ 15% and fracture strain by ∼ 79% when compared to pure Mg. The X-ray diffraction studies indicated changes in the basal plane orientation of pure Mg with the addition of nano-TiB{sub 2} particulates. A maximum tensile fracture strain of ∼ 16% is achieved with the addition of 0.97 vol.% TiB{sub 2}. The room temperature compressive properties of the nanocomposites reveal that the addition of 1.98 TiB{sub 2} increases the 0.2% compressive yield strength of Mg by ∼ 47% and ultimate compressive strength by ∼ 10% with a marginal increase in the fracture strain (∼ 11%). Reduction in tensile–compression yield asymmetry was observed for Mg 0.58 and 0.97 vol.% TiB{sub 2} nanocomposites which can be attributed to the weakening of the strong basal texture of pure Mg. - Highlights: • First

  18. 12 CFR 571.80-570.81 - [Reserved

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ... 12 Banks and Banking 5 2010-01-01 2010-01-01 false [Reserved] 571.80-570.81 Section 571.80-570.81 Banks and Banking OFFICE OF THRIFT SUPERVISION, DEPARTMENT OF THE TREASURY FAIR CREDIT REPORTING Duties of Users of Consumer Reports Regarding Address Discrepancies and Records Disposal §§ 571.80-570.81...

  19. 28 CFR 570.43 - Inmates requiring a high degree of control and supervision.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 28 Judicial Administration 2 2010-07-01 2010-07-01 false Inmates requiring a high degree of control and supervision. 570.43 Section 570.43 Judicial Administration BUREAU OF PRISONS, DEPARTMENT OF JUSTICE COMMUNITY PROGRAMS AND RELEASE COMMUNITY PROGRAMS Escorted Trips § 570.43 Inmates requiring a high degree of control and supervision. Only the...

  20. 24 CFR 570.603 - Labor standards.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ... 24 Housing and Urban Development 3 2010-04-01 2010-04-01 false Labor standards. 570.603 Section... DEVELOPMENT COMMUNITY FACILITIES COMMUNITY DEVELOPMENT BLOCK GRANTS Other Program Requirements § 570.603 Labor standards. (a) Section 110(a) of the Act contains labor standards that apply to nonvolunteer labor financed...

  1. 48 CFR 923.570-1 - Applicability.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... Section 923.570-1 Federal Acquisition Regulations System DEPARTMENT OF ENERGY SOCIOECONOMIC PROGRAMS ENVIRONMENT, CONSERVATION, OCCUPATIONAL SAFETY, AND DRUG-FREE WORKPLACE Drug-Free Workplace 923.570-1... operated under the authority of the Atomic Energy Act of 1954, as amended, where such work— (1) Has a value...

  2. 48 CFR 1403.570 - Restrictions on contractor advertising.

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ... 48 Federal Acquisition Regulations System 5 2014-10-01 2014-10-01 false Restrictions on contractor advertising. 1403.570 Section 1403.570 Federal Acquisition Regulations System DEPARTMENT OF THE INTERIOR... 1403.570 Restrictions on contractor advertising. ...

  3. 48 CFR 1403.570 - Restrictions on contractor advertising.

    Code of Federal Regulations, 2012 CFR

    2012-10-01

    ... 48 Federal Acquisition Regulations System 5 2012-10-01 2012-10-01 false Restrictions on contractor advertising. 1403.570 Section 1403.570 Federal Acquisition Regulations System DEPARTMENT OF THE INTERIOR... 1403.570 Restrictions on contractor advertising. ...

  4. 48 CFR 1403.570 - Restrictions on contractor advertising.

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ... 48 Federal Acquisition Regulations System 5 2011-10-01 2011-10-01 false Restrictions on contractor advertising. 1403.570 Section 1403.570 Federal Acquisition Regulations System DEPARTMENT OF THE INTERIOR... 1403.570 Restrictions on contractor advertising. ...

  5. 48 CFR 1403.570 - Restrictions on contractor advertising.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... 48 Federal Acquisition Regulations System 5 2010-10-01 2010-10-01 false Restrictions on contractor advertising. 1403.570 Section 1403.570 Federal Acquisition Regulations System DEPARTMENT OF THE INTERIOR... 1403.570 Restrictions on contractor advertising. ...

  6. Struvite crystallization versus amorphous magnesium and calcium phosphate precipitation during the treatment of a saline industrial wastewater.

    PubMed

    Crutchik, D; Garrido, J M

    2011-01-01

    Struvite crystallization (MgNH(4)PO(4)·6H(2)O, MAP) could be an alternative for the sustainable and economical recovery of phosphorus from concentrated wastewater streams. Struvite precipitation is recommended for those wastewaters which have high orthophosphate concentration. However the presence of a cheap magnesium source is required in order to make the process feasible. For those wastewater treatment plants (WWTP) located near the seashore magnesium could be economically obtained using seawater. However seawater contains calcium ions that could interfere in the process, by promoting the precipitation of amorphous magnesium and calcium phosphates. Precipitates composition was affected by the NH(4)(+)/PO(4)(3-) molar ratio used. Struvite or magnesium and calcium phosphates were obtained when NH(4)(+)/PO(4)(3-) was fixed at 4.7 or 1.0, respectively. This study demonstrates that by manipulating the NH(4)(+)/PO(4)(3-) it is possible to obtain pure struvite crystals, instead of precipitates of amorphous magnesium and calcium phosphates. This was easily performed by using either raw or secondary treated wastewater with different ammonium concentrations.

  7. 31 CFR 570.306 - Interest.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... 31 Money and Finance:Treasury 3 2011-07-01 2011-07-01 false Interest. 570.306 Section 570.306... Interest. Except as otherwise provided in this part, the term interest, when used with respect to property (e.g., “an interest in property”), means an interest of any nature whatsoever, direct or indirect. ...

  8. 31 CFR 570.306 - Interest.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... 31 Money and Finance:Treasury 3 2014-07-01 2014-07-01 false Interest. 570.306 Section 570.306... Interest. Except as otherwise provided in this part, the term interest, when used with respect to property (e.g., “an interest in property”), means an interest of any nature whatsoever, direct or indirect. ...

  9. 31 CFR 570.306 - Interest.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... 31 Money and Finance:Treasury 3 2013-07-01 2013-07-01 false Interest. 570.306 Section 570.306... Interest. Except as otherwise provided in this part, the term interest, when used with respect to property (e.g., “an interest in property”), means an interest of any nature whatsoever, direct or indirect. ...

  10. 31 CFR 570.306 - Interest.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... 31 Money and Finance:Treasury 3 2012-07-01 2012-07-01 false Interest. 570.306 Section 570.306... Interest. Except as otherwise provided in this part, the term interest, when used with respect to property (e.g., “an interest in property”), means an interest of any nature whatsoever, direct or indirect. ...

  11. 29 CFR 570.142 - Relation to other laws.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... 29 Labor 3 2013-07-01 2013-07-01 false Relation to other laws. 570.142 Section 570.142 Labor... Provisions of the Fair Labor Standards Act of 1938, as Amended Enforcement § 570.142 Relation to other laws... shall justify noncompliance with any Federal or State law or municipal ordinance establishing a higher...

  12. 29 CFR 570.142 - Relation to other laws.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... 29 Labor 3 2012-07-01 2012-07-01 false Relation to other laws. 570.142 Section 570.142 Labor... Provisions of the Fair Labor Standards Act of 1938, as Amended Enforcement § 570.142 Relation to other laws... shall justify noncompliance with any Federal or State law or municipal ordinance establishing a higher...

  13. 48 CFR 570.401 - Renewal options.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... 48 Federal Acquisition Regulations System 4 2010-10-01 2010-10-01 false Renewal options. 570.401... Requirements 570.401 Renewal options. (a) Exercise of options. Before exercising an option to renew, follow the... survey. Before exercising an option to renew a lease, review current market information to ensure the...

  14. 48 CFR 570.301 - Market survey.

    Code of Federal Regulations, 2012 CFR

    2012-10-01

    ... 48 Federal Acquisition Regulations System 4 2012-10-01 2012-10-01 false Market survey. 570.301... Real Property Over the Simplified Lease Acquisition Threshold 570.301 Market survey. Conduct a market survey to identify potential sources. Use information available in GSA or from other sources to identify...

  15. 48 CFR 570.301 - Market survey.

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ... 48 Federal Acquisition Regulations System 4 2014-10-01 2014-10-01 false Market survey. 570.301... Real Property Over the Simplified Lease Acquisition Threshold 570.301 Market survey. Conduct a market survey to identify potential sources. Use information available in GSA or from other sources to identify...

  16. 48 CFR 570.301 - Market survey.

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ... 48 Federal Acquisition Regulations System 4 2011-10-01 2011-10-01 false Market survey. 570.301... Real Property Over the Simplified Lease Acquisition Threshold 570.301 Market survey. Conduct a market survey to identify potential sources. Use information available in GSA or from other sources to identify...

  17. 48 CFR 570.301 - Market survey.

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ... 48 Federal Acquisition Regulations System 4 2013-10-01 2013-10-01 false Market survey. 570.301... Real Property Over the Simplified Lease Acquisition Threshold 570.301 Market survey. Conduct a market survey to identify potential sources. Use information available in GSA or from other sources to identify...

  18. 48 CFR 2009.570-10 - Remedies.

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ... 48 Federal Acquisition Regulations System 6 2011-10-01 2011-10-01 false Remedies. 2009.570-10... ACQUISITION PLANNING CONTRACTOR QUALIFICATIONS Organizational Conflicts of Interest 2009.570-10 Remedies. In addition to other remedies permitted by law or contract for a breach of the restrictions in this subpart or...

  19. 48 CFR 2009.570-10 - Remedies.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... 48 Federal Acquisition Regulations System 6 2010-10-01 2010-10-01 true Remedies. 2009.570-10... ACQUISITION PLANNING CONTRACTOR QUALIFICATIONS Organizational Conflicts of Interest 2009.570-10 Remedies. In addition to other remedies permitted by law or contract for a breach of the restrictions in this subpart or...

  20. 29 CFR 570.12 - Revoked certificates of age.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... 29 Labor 3 2014-07-01 2014-07-01 false Revoked certificates of age. 570.12 Section 570.12 Labor... REGULATIONS, ORDERS AND STATEMENTS OF INTERPRETATION Certificates of Age § 570.12 Revoked certificates of age. A certificate which has been revoked as proof of age under the Act shall be of no force and effect...

  1. 29 CFR 570.12 - Revoked certificates of age.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... 29 Labor 3 2013-07-01 2013-07-01 false Revoked certificates of age. 570.12 Section 570.12 Labor... REGULATIONS, ORDERS AND STATEMENTS OF INTERPRETATION Certificates of Age § 570.12 Revoked certificates of age. A certificate which has been revoked as proof of age under the Act shall be of no force and effect...

  2. 29 CFR 570.12 - Revoked certificates of age.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 29 Labor 3 2010-07-01 2010-07-01 false Revoked certificates of age. 570.12 Section 570.12 Labor... REGULATIONS, ORDERS AND STATEMENTS OF INTERPRETATION Certificates of Age § 570.12 Revoked certificates of age. A certificate which has been revoked as proof of age under the Act shall be of no force and effect...

  3. 29 CFR 570.12 - Revoked certificates of age.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... 29 Labor 3 2011-07-01 2011-07-01 false Revoked certificates of age. 570.12 Section 570.12 Labor... REGULATIONS, ORDERS AND STATEMENTS OF INTERPRETATION Certificates of Age § 570.12 Revoked certificates of age. A certificate which has been revoked as proof of age under the Act shall be of no force and effect...

  4. 29 CFR 570.12 - Revoked certificates of age.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... 29 Labor 3 2012-07-01 2012-07-01 false Revoked certificates of age. 570.12 Section 570.12 Labor... REGULATIONS, ORDERS AND STATEMENTS OF INTERPRETATION Certificates of Age § 570.12 Revoked certificates of age. A certificate which has been revoked as proof of age under the Act shall be of no force and effect...

  5. 48 CFR 1204.804-570 - Supporting closeout documents.

    Code of Federal Regulations, 2012 CFR

    2012-10-01

    ... 48 Federal Acquisition Regulations System 5 2012-10-01 2012-10-01 false Supporting closeout documents. 1204.804-570 Section 1204.804-570 Federal Acquisition Regulations System DEPARTMENT OF TRANSPORTATION GENERAL ADMINISTRATIVE MATTERS Government Contract Files 1204.804-570 Supporting closeout...

  6. 48 CFR 1204.804-570 - Supporting closeout documents.

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ... 48 Federal Acquisition Regulations System 5 2013-10-01 2013-10-01 false Supporting closeout documents. 1204.804-570 Section 1204.804-570 Federal Acquisition Regulations System DEPARTMENT OF TRANSPORTATION GENERAL ADMINISTRATIVE MATTERS Government Contract Files 1204.804-570 Supporting closeout...

  7. 48 CFR 1204.804-570 - Supporting closeout documents.

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ... 48 Federal Acquisition Regulations System 5 2011-10-01 2011-10-01 false Supporting closeout documents. 1204.804-570 Section 1204.804-570 Federal Acquisition Regulations System DEPARTMENT OF TRANSPORTATION GENERAL ADMINISTRATIVE MATTERS Government Contract Files 1204.804-570 Supporting closeout...

  8. 48 CFR 1204.804-570 - Supporting closeout documents.

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ... 48 Federal Acquisition Regulations System 5 2014-10-01 2014-10-01 false Supporting closeout documents. 1204.804-570 Section 1204.804-570 Federal Acquisition Regulations System DEPARTMENT OF TRANSPORTATION GENERAL ADMINISTRATIVE MATTERS Government Contract Files 1204.804-570 Supporting closeout...

  9. 48 CFR 1204.804-570 - Supporting closeout documents.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... 48 Federal Acquisition Regulations System 5 2010-10-01 2010-10-01 false Supporting closeout documents. 1204.804-570 Section 1204.804-570 Federal Acquisition Regulations System DEPARTMENT OF TRANSPORTATION GENERAL ADMINISTRATIVE MATTERS Government Contract Files 1204.804-570 Supporting closeout...

  10. 48 CFR 536.570-8 - Specifications and drawings.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... 48 Federal Acquisition Regulations System 4 2010-10-01 2010-10-01 false Specifications and drawings. 536.570-8 Section 536.570-8 Federal Acquisition Regulations System GENERAL SERVICES... 536.570-8 Specifications and drawings. Insert the clause at 552.236-77, Specifications and Drawings...

  11. Magnesium-based implants: a mini-review.

    PubMed

    Luthringer, Bérengère J C; Feyerabend, Frank; Willumeit-Römer, Regine

    2014-01-01

    The goal of this review is to bring to the attention of the readership of Magnesium Research another facet of the importance of magnesium, i.e. magnesium-based biomaterials. A concise history of biomaterials and magnesium are thus presented. In addition, historical and current, clinical magnesium-based applications are presented.

  12. Improved corrosion resistance on biodegradable magnesium by zinc and aluminum ion implantation

    NASA Astrophysics Data System (ADS)

    Xu, Ruizhen; Yang, Xiongbo; Suen, Kai Wong; Wu, Guosong; Li, Penghui; Chu, Paul K.

    2012-12-01

    Magnesium and its alloys have promising applications as biodegradable materials, and plasma ion implantation can enhance the corrosion resistance by modifying the surface composition. In this study, suitable amounts of zinc and aluminum are plasma-implanted into pure magnesium. The surface composition, phases, and chemical states are determined, and electrochemical tests and electrochemical impedance spectroscopy (EIS) are conducted to investigate the surface corrosion behavior and elucidate the mechanism. The corrosion resistance enhancement after ion implantation is believed to stem from the more compact oxide film composed of magnesium oxide and aluminum oxide as well as the appearance of the β-Mg17Al12 phase.

  13. 48 CFR 1823.570-1 - Definitions.

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ... 48 Federal Acquisition Regulations System 6 2014-10-01 2014-10-01 false Definitions. 1823.570-1 Section 1823.570-1 Federal Acquisition Regulations System NATIONAL AERONAUTICS AND SPACE ADMINISTRATION SOCIOECONOMIC PROGRAMS ENVIRONMENT, ENERGY AND WATER EFFICIENCY, RENEWABLE ENERGY TECHNOLOGIES, OCCUPATIONAL...

  14. 48 CFR 1823.570-1 - Definitions.

    Code of Federal Regulations, 2012 CFR

    2012-10-01

    ... 48 Federal Acquisition Regulations System 6 2012-10-01 2012-10-01 false Definitions. 1823.570-1 Section 1823.570-1 Federal Acquisition Regulations System NATIONAL AERONAUTICS AND SPACE ADMINISTRATION SOCIOECONOMIC PROGRAMS ENVIRONMENT, ENERGY AND WATER EFFICIENCY, RENEWABLE ENERGY TECHNOLOGIES, OCCUPATIONAL...

  15. 48 CFR 3009.570-3 - Procedures.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... 48 Federal Acquisition Regulations System 7 2010-10-01 2010-10-01 false Procedures. 3009.570-3 Section 3009.570-3 Federal Acquisition Regulations System DEPARTMENT OF HOMELAND SECURITY, HOMELAND SECURITY ACQUISITION REGULATION (HSAR) ACQUISITION PLANNING CONTRACTOR QUALIFICATIONS Organizational and...

  16. Summary of "Magnesium Vision 2020: A North American Automotive Strategic Vision for Magnesium"

    NASA Astrophysics Data System (ADS)

    Cole, Gerald S.

    This paper summarizes the monograph, "Magnesium Vision 2020. A North American Automotive Strategic Vision for Magnesium"1 prepared under the auspices of the United States Automotive Materials Partnership The objective was to understand the infrastructural and technical challenge that can increase the use of magnesium in the automotive industry. One hundred sixty three (163) Research and Technology Development Themes (RTDTs), or RTD projects were developed that addressed issues of corrosion, fastening, and processing-other-than-high pressure die casting to produce automotive magnesium parts. A major problem identified in the study is the limited ability of the current magnesium industrial infrastructure to supply RTD and implementation-ready automotive magnesium components. One solution is to create a magnesium cyber center wrhere globally networked experts would be able to innovate in process and product development, model metalworking and non-HPDC foundry processes, and integrate theoretical predictions/models of metallurgical structure with component function.

  17. Interdiffusion and reaction between pure magnesium and aluminum alloy 6061

    DOE PAGES

    Kammerer, C. C.; Fu, Mian; Zhou, Le; ...

    2015-06-01

    Using solid-to-solid couples investigation, this study characterized the reaction products evolved and quantified the diffusion kinetics when pure Mg bonded to AA6061 is subjected to thermal treatment at 300°C for 720 hours, 350°C for 360 hours, and 400°C for 240 hours. Characterization techniques include optical microscopy, scanning electron microscopy with X-ray energy dispersive spectroscopy, and transmission electron microscopy. Parabolic growth constants were determined for γ-Mg 17Al 12, β-Mg 2Al 3, and the elusive ε-phase. Similarly, the average effective interdiffusion coefficients of major constituents were calculated for Mg (ss), γ-Mg 17Al 12, β-Mg 2Al 3, and AA6061. The activation energies andmore » pre-exponential factors for both parabolic growth constant and average effective interdiffusion coefficients were computed using the Arrhenius relationship. The activation energy for growth of γ-Mg 17Al 12 was significantly higher than that for β-Mg 2Al 3 while the activation energy for interdiffusion of γ-Mg 17Al 12 was only slightly higher than that for β-Mg 2Al 3. As a result, comparisons are made between the results of this study and those of diffusion studies between pure Mg and pure Al to examine the influence of alloying additions in AA6061.« less

  18. 48 CFR 223.570 - Drug-free work force.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... 48 Federal Acquisition Regulations System 3 2010-10-01 2010-10-01 false Drug-free work force. 223.570 Section 223.570 Federal Acquisition Regulations System DEFENSE ACQUISITION REGULATIONS SYSTEM... TECHNOLOGIES, OCCUPATIONAL SAFETY, AND DRUG-FREE WORKPLACE Drug-Free Workplace 223.570 Drug-free work force. ...

  19. 48 CFR 223.570 - Drug-free work force.

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ... 48 Federal Acquisition Regulations System 3 2011-10-01 2011-10-01 false Drug-free work force. 223.570 Section 223.570 Federal Acquisition Regulations System DEFENSE ACQUISITION REGULATIONS SYSTEM... TECHNOLOGIES, OCCUPATIONAL SAFETY, AND DRUG-FREE WORKPLACE Drug-Free Workplace 223.570 Drug-free work force. ...

  20. 48 CFR 223.570 - Drug-free work force.

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ... 48 Federal Acquisition Regulations System 3 2013-10-01 2013-10-01 false Drug-free work force. 223.570 Section 223.570 Federal Acquisition Regulations System DEFENSE ACQUISITION REGULATIONS SYSTEM... TECHNOLOGIES, OCCUPATIONAL SAFETY, AND DRUG-FREE WORKPLACE Drug-Free Workplace 223.570 Drug-free work force. ...

  1. 48 CFR 223.570 - Drug-free work force.

    Code of Federal Regulations, 2012 CFR

    2012-10-01

    ... 48 Federal Acquisition Regulations System 3 2012-10-01 2012-10-01 false Drug-free work force. 223.570 Section 223.570 Federal Acquisition Regulations System DEFENSE ACQUISITION REGULATIONS SYSTEM... TECHNOLOGIES, OCCUPATIONAL SAFETY, AND DRUG-FREE WORKPLACE Drug-Free Workplace 223.570 Drug-free work force. ...

  2. 48 CFR 223.570 - Drug-free work force.

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ... 48 Federal Acquisition Regulations System 3 2014-10-01 2014-10-01 false Drug-free work force. 223.570 Section 223.570 Federal Acquisition Regulations System DEFENSE ACQUISITION REGULATIONS SYSTEM... TECHNOLOGIES, OCCUPATIONAL SAFETY, AND DRUG-FREE WORKPLACE Drug-Free Workplace 223.570 Drug-free work force. ...

  3. 48 CFR 570.304 - General source selection procedures.

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ... procedures. 570.304 Section 570.304 Federal Acquisition Regulations System GENERAL SERVICES ADMINISTRATION... Leasehold Interests in Real Property Over the Simplified Lease Acquisition Threshold 570.304 General source... disadvantaged business concerns in performance of the contract, and other factors as required by FAR 15.304 as...

  4. 48 CFR 923.570-1 - Applicability.

    Code of Federal Regulations, 2012 CFR

    2012-10-01

    ... Section 923.570-1 Federal Acquisition Regulations System DEPARTMENT OF ENERGY SOCIOECONOMIC PROGRAMS ENVIRONMENT, ENERGY AND WATER EFFICIENCY, RENEWABLE ENERGY TECHNOLOGIES, OCCUPATIONAL SAFETY, AND DRUG-FREE WORKPLACE Drug-Free Workplace 923.570-1 Applicability. The policies, criteria, and procedure specified in 10...

  5. 48 CFR 923.570-1 - Applicability.

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ... Section 923.570-1 Federal Acquisition Regulations System DEPARTMENT OF ENERGY SOCIOECONOMIC PROGRAMS ENVIRONMENT, ENERGY AND WATER EFFICIENCY, RENEWABLE ENERGY TECHNOLOGIES, OCCUPATIONAL SAFETY, AND DRUG-FREE WORKPLACE Drug-Free Workplace 923.570-1 Applicability. The policies, criteria, and procedure specified in 10...

  6. 48 CFR 923.570-1 - Applicability.

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ... Section 923.570-1 Federal Acquisition Regulations System DEPARTMENT OF ENERGY SOCIOECONOMIC PROGRAMS ENVIRONMENT, ENERGY AND WATER EFFICIENCY, RENEWABLE ENERGY TECHNOLOGIES, OCCUPATIONAL SAFETY, AND DRUG-FREE WORKPLACE Drug-Free Workplace 923.570-1 Applicability. The policies, criteria, and procedure specified in 10...

  7. 48 CFR 923.570-1 - Applicability.

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ... Section 923.570-1 Federal Acquisition Regulations System DEPARTMENT OF ENERGY SOCIOECONOMIC PROGRAMS ENVIRONMENT, ENERGY AND WATER EFFICIENCY, RENEWABLE ENERGY TECHNOLOGIES, OCCUPATIONAL SAFETY, AND DRUG-FREE WORKPLACE Drug-Free Workplace 923.570-1 Applicability. The policies, criteria, and procedure specified in 10...

  8. Facile formation of biomimetic color-tuned superhydrophobic magnesium alloy with corrosion resistance.

    PubMed

    Ishizaki, Takahiro; Sakamoto, Michiru

    2011-03-15

    The design of color-tuned magnesium alloy with anticorrosive properties and damping capacity was created by means of a simple and inexpensive method. The vertically self-aligned nano- and microsheets were formed on magnesium alloy AZ31 by a chemical-free immersion process in ultrapure water at a temperature of 120 °C, resulting in the color expression. The color changed from silver with metallic luster to some specific colors such as orange, green, and orchid, depending on the immersion time. The color-tuned magnesium alloy showed anticorrosive performance and damping capacity. In addition, the colored surface with minute surface textures was modified with n-octadecyltrimethoxysilane (ODS), leading to the formation of color-tuned superhydrophobic surfaces. The corrosion resistance of the color-tuned superhydrophobic magnesium alloy was also investigated using electrochemical potentiodynamic measurements. Moreover, the color-tuned superhydrophobic magnesium alloy showed high hydrophobicity not just for pure water but also for corrosive liquids, such as acidic, basic, and some aqueous salt solutions. In addition, the American Society for Testing and Materials (ASTM) standard D 3359-02 cross cut tape test was performed to investigate the adhesion of the color-tuned superhydrophobic film to the magnesium alloy surface.

  9. 48 CFR 570.203-4 - Negotiations, evaluation, and award.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... 48 Federal Acquisition Regulations System 4 2010-10-01 2010-10-01 false Negotiations, evaluation, and award. 570.203-4 Section 570.203-4 Federal Acquisition Regulations System GENERAL SERVICES... Acquisition Procedures 570.203-4 Negotiations, evaluation, and award. (a) If you need to conduct negotiations...

  10. A Quick Reference on Magnesium.

    PubMed

    Bateman, Shane W

    2017-03-01

    This article serves as a quick reference on the distribution, handling, and supplementation of magnesium. It also lists the manifestations and causes of magnesium deficit and provides criteria for the diagnosis of a magnesium deficit. Copyright © 2016 Elsevier Inc. All rights reserved.

  11. 48 CFR 209.570-3 - Procedures.

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ... out the use of contracted lead system integrator functions over the shortest period of time consistent... 48 Federal Acquisition Regulations System 3 2014-10-01 2014-10-01 false Procedures. 209.570-3 Section 209.570-3 Federal Acquisition Regulations System DEFENSE ACQUISITION REGULATIONS SYSTEM...

  12. 48 CFR 209.570-3 - Procedures.

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ... out the use of contracted lead system integrator functions over the shortest period of time consistent... 48 Federal Acquisition Regulations System 3 2013-10-01 2013-10-01 false Procedures. 209.570-3 Section 209.570-3 Federal Acquisition Regulations System DEFENSE ACQUISITION REGULATIONS SYSTEM...

  13. 48 CFR 209.570-3 - Procedures.

    Code of Federal Regulations, 2012 CFR

    2012-10-01

    ... out the use of contracted lead system integrator functions over the shortest period of time consistent... 48 Federal Acquisition Regulations System 3 2012-10-01 2012-10-01 false Procedures. 209.570-3 Section 209.570-3 Federal Acquisition Regulations System DEFENSE ACQUISITION REGULATIONS SYSTEM...

  14. 48 CFR 209.570-3 - Procedures.

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ... out the use of contracted lead system integrator functions over the shortest period of time consistent... 48 Federal Acquisition Regulations System 3 2011-10-01 2011-10-01 false Procedures. 209.570-3 Section 209.570-3 Federal Acquisition Regulations System DEFENSE ACQUISITION REGULATIONS SYSTEM...

  15. 48 CFR 203.570-1 - Scope.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... 48 Federal Acquisition Regulations System 3 2010-10-01 2010-10-01 false Scope. 203.570-1 Section 203.570-1 Federal Acquisition Regulations System DEFENSE ACQUISITION REGULATIONS SYSTEM, DEPARTMENT OF DEFENSE GENERAL IMPROPER BUSINESS PRACTICES AND PERSONAL CONFLICTS OF INTEREST Other Improper Business...

  16. 24 CFR 570.302 - Submission requirements.

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ... 24 Housing and Urban Development 3 2011-04-01 2010-04-01 true Submission requirements. 570.302 Section 570.302 Housing and Urban Development Regulations Relating to Housing and Urban Development (Continued) OFFICE OF ASSISTANT SECRETARY FOR COMMUNITY PLANNING AND DEVELOPMENT, DEPARTMENT OF HOUSING AND...

  17. 24 CFR 570.302 - Submission requirements.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ... 24 Housing and Urban Development 3 2010-04-01 2010-04-01 false Submission requirements. 570.302 Section 570.302 Housing and Urban Development Regulations Relating to Housing and Urban Development (Continued) OFFICE OF ASSISTANT SECRETARY FOR COMMUNITY PLANNING AND DEVELOPMENT, DEPARTMENT OF HOUSING AND...

  18. 24 CFR 570.207 - Ineligible activities.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ... 24 Housing and Urban Development 3 2010-04-01 2010-04-01 false Ineligible activities. 570.207 Section 570.207 Housing and Urban Development Regulations Relating to Housing and Urban Development (Continued) OFFICE OF ASSISTANT SECRETARY FOR COMMUNITY PLANNING AND DEVELOPMENT, DEPARTMENT OF HOUSING AND...

  19. 24 CFR 570.207 - Ineligible activities.

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ... 24 Housing and Urban Development 3 2011-04-01 2010-04-01 true Ineligible activities. 570.207 Section 570.207 Housing and Urban Development Regulations Relating to Housing and Urban Development (Continued) OFFICE OF ASSISTANT SECRETARY FOR COMMUNITY PLANNING AND DEVELOPMENT, DEPARTMENT OF HOUSING AND...

  20. 48 CFR 2009.570 - NRC organizational conflicts of interest.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... conflicts of interest. 2009.570 Section 2009.570 Federal Acquisition Regulations System NUCLEAR REGULATORY COMMISSION COMPETITION AND ACQUISITION PLANNING CONTRACTOR QUALIFICATIONS Organizational Conflicts of Interest 2009.570 NRC organizational conflicts of interest. ...

  1. Mechanical degradation of porous titanium with entangled structure filled with biodegradable magnesium in Hanks' solution.

    PubMed

    Li, Qiuyan; Jiang, Guofeng; Wang, Cunlong; Dong, Jie; He, Guo

    2015-12-01

    The degradation behavior of the porous titanium with entangled structure filled with biodegradable magnesium (p-Ti/Mg) in Hanks' solution was investigated. It was found that the p-Ti/Mg composite had higher strength than pure magnesium and porous titanium with entangled structure (p-Ti). Although the magnesium in p-Ti/Mg was completely dissolved in Hanks' solution after immersion for 104 h, the rest of the sample still maintained strength of about 86 MPa. Moreover, the produced porousness (due to magnesium-degradation) could provide channels for the ingrowth and transportation of bone cells. However, the high corrosion rate of p-Ti/Mg is still a problem when used as a candidate biomedical material, which needs further improvement. Copyright © 2015 Elsevier B.V. All rights reserved.

  2. Effects of a magnesium-free dialysate on magnesium metabolism during continuous ambulatory peritoneal dialysis.

    PubMed

    Shah, G M; Winer, R L; Cutler, R E; Arieff, A I; Goodman, W G; Lacher, J W; Schoenfeld, P Y; Coburn, J W; Horowitz, A M

    1987-10-01

    While the use of magnesium-containing compounds is usually contraindicated in dialysis patients, the risk of toxicity from hypermagnesemia can be reduced by lowering the magnesium concentration in dialysate. We examined the effects of a magnesium-free dialysate on both serum magnesium level and the peritoneal removal rate of magnesium over 12 weeks in 25 stable patients undergoing continuous ambulatory peritoneal dialysis (CAPD). After 2 weeks, the serum magnesium level decreased from 2.2 to 1.9 mg/dL (0.9 to 0.8 mmol/L) (P less than .02) and the peritoneal removal rate increased from 66 to 83 mg/d (2.8 to 3.5 mmol/d) (P less than .05), with both values remaining stable thereafter. There was a strong association between these parameters (r = -0.62, P less than .05), suggesting that the serum magnesium level decreased as a result of the initial increased peritoneal removal rate. For an additional 4-week period, a subgroup of nine patients received magnesium-containing, phosphate binding agents instead of those containing only aluminum. During this phase, serum inorganic phosphorus was well controlled. The serum magnesium level increased only from 1.8 to 2.5 mg/dL (0.7 to 1.0 mmol/L) (P less than .05), due in great part to the concomitant 41% rise in peritoneal magnesium removal from 91 to 128 mg/d (3.8 to 5.3 mmol/d) (P less than .05). No toxicity was noted during the entire 16-week study period, nor did serum calcium change. Thus, serum magnesium levels remained within an acceptable range as magnesium-containing phosphate binders were given through the use of magnesium-free peritoneal dialysate.(ABSTRACT TRUNCATED AT 250 WORDS)

  3. Influence of dynamic compressive loading on the in vitro degradation behavior of pure PLA and Mg/PLA composite.

    PubMed

    Li, Xuan; Qi, Chenxi; Han, Linyuan; Chu, Chenglin; Bai, Jing; Guo, Chao; Xue, Feng; Shen, Baolong; Chu, Paul K

    2017-12-01

    The effects of dynamic compressive loading on the in vitro degradation behavior of pure poly-lactic acid (PLA) and PLA-based composite unidirectionally reinforced with micro-arc oxidized magnesium alloy wires (Mg/PLA) are investigated. Dynamic compressive loading is shown to accelerate degradation of pure PLA and Mg/PLA. As the applied stress is increased from 0.1MPa to 0.9MPa or frequency from 0.5Hz to 2.5Hz, the overall degradation rate goes up. After immersion for 21days at 0.9MPa and 2.5Hz, the bending strength retention of the composite and pure PLA is 60.1% and 50%, respectively. Dynamic loading enhances diffusion of small acidic molecules resulting in significant pH decrease in the immersion solution. The synergistic reaction between magnesium alloy wires and PLA in the composite is further clarified by electrochemical tests. The degradation behavior of the pure PLA and PLA matrix in the composite under dynamic conditions obey the first order degradation kinetics and a numerical model is postulated to elucidate the relationship of the bending strength, stress, frequency, and immersion time under dynamic conditions. We systematically study the influence of dynamic loading on the degradation behavior of pure PLA and Mg/PLA. Dynamic compressive loading is shown to accelerate degradation of pure PLA and Mg/PLA. The synergistic reaction between magnesium alloy wires and PLA in the composite is firstly clarified by electrochemical tests. The degradation behavior of the pure PLA and PLA matrix in the composite under dynamic conditions obey the first order degradation kinetics. Then, a numerical model is postulated to elucidate the relationship of the bending strength, stress, frequency, and immersion time under dynamic conditions. Copyright © 2017 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.

  4. 48 CFR 536.570-11 - Heat.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... 48 Federal Acquisition Regulations System 4 2010-10-01 2010-10-01 false Heat. 536.570-11 Section... OF CONTRACTING CONSTRUCTION AND ARCHITECT-ENGINEER CONTRACTS Contract Clauses 536.570-11 Heat. Insert the clause at 552.236-80, Heat, in solicitations and contracts if construction, dismantling...

  5. 48 CFR 536.570-11 - Heat.

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ... 48 Federal Acquisition Regulations System 4 2011-10-01 2011-10-01 false Heat. 536.570-11 Section... OF CONTRACTING CONSTRUCTION AND ARCHITECT-ENGINEER CONTRACTS Contract Clauses 536.570-11 Heat. Insert the clause at 552.236-80, Heat, in solicitations and contracts if construction, dismantling...

  6. 48 CFR 536.570-11 - Heat.

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ... 48 Federal Acquisition Regulations System 4 2013-10-01 2013-10-01 false Heat. 536.570-11 Section... OF CONTRACTING CONSTRUCTION AND ARCHITECT-ENGINEER CONTRACTS Contract Clauses 536.570-11 Heat. Insert the clause at 552.236-80, Heat, in solicitations and contracts if construction, dismantling...

  7. 48 CFR 536.570-11 - Heat.

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ... 48 Federal Acquisition Regulations System 4 2014-10-01 2014-10-01 false Heat. 536.570-11 Section... OF CONTRACTING CONSTRUCTION AND ARCHITECT-ENGINEER CONTRACTS Contract Clauses 536.570-11 Heat. Insert the clause at 552.236-80, Heat, in solicitations and contracts if construction, dismantling...

  8. 48 CFR 536.570-11 - Heat.

    Code of Federal Regulations, 2012 CFR

    2012-10-01

    ... 48 Federal Acquisition Regulations System 4 2012-10-01 2012-10-01 false Heat. 536.570-11 Section... OF CONTRACTING CONSTRUCTION AND ARCHITECT-ENGINEER CONTRACTS Contract Clauses 536.570-11 Heat. Insert the clause at 552.236-80, Heat, in solicitations and contracts if construction, dismantling...

  9. 48 CFR 570.502-2 - Procedures.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... Services. Reference the lease on the form. (h) Inspection and payment. Do not make final payment for... 48 Federal Acquisition Regulations System 4 2010-10-01 2010-10-01 false Procedures. 570.502-2 Section 570.502-2 Federal Acquisition Regulations System GENERAL SERVICES ADMINISTRATION SPECIAL...

  10. 48 CFR 2042.570-1 - Policy.

    Code of Federal Regulations, 2012 CFR

    2012-10-01

    ... 48 Federal Acquisition Regulations System 6 2012-10-01 2012-10-01 false Policy. 2042.570-1 Section... CONTRACT ADMINISTRATION Differing Professional Views (DPV) 2042.570-1 Policy. The Nuclear Regulatory Commission's (NRC) policy is to support the contractor's expression of professional health and safety-related...

  11. 48 CFR 2042.570-1 - Policy.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... 48 Federal Acquisition Regulations System 6 2010-10-01 2010-10-01 true Policy. 2042.570-1 Section... CONTRACT ADMINISTRATION Differing Professional Views (DPV) 2042.570-1 Policy. The Nuclear Regulatory Commission's (NRC) policy is to support the contractor's expression of professional health and safety-related...

  12. 48 CFR 2042.570-1 - Policy.

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ... 48 Federal Acquisition Regulations System 6 2014-10-01 2014-10-01 false Policy. 2042.570-1 Section... CONTRACT ADMINISTRATION Differing Professional Views (DPV) 2042.570-1 Policy. The Nuclear Regulatory Commission's (NRC) policy is to support the contractor's expression of professional health and safety-related...

  13. 48 CFR 536.570-3 - Specialist.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... 48 Federal Acquisition Regulations System 4 2010-10-01 2010-10-01 false Specialist. 536.570-3... CATEGORIES OF CONTRACTING CONSTRUCTION AND ARCHITECT-ENGINEER CONTRACTS Contract Clauses 536.570-3 Specialist. Insert 552.236-72, Specialist, in solicitations and contracts for construction if the technical sections...

  14. 24 CFR 570.307 - Urban counties.

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ... 24 Housing and Urban Development 3 2011-04-01 2010-04-01 true Urban counties. 570.307 Section 570.307 Housing and Urban Development Regulations Relating to Housing and Urban Development (Continued) OFFICE OF ASSISTANT SECRETARY FOR COMMUNITY PLANNING AND DEVELOPMENT, DEPARTMENT OF HOUSING AND URBAN...

  15. 24 CFR 570.307 - Urban counties.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ... 24 Housing and Urban Development 3 2010-04-01 2010-04-01 false Urban counties. 570.307 Section 570.307 Housing and Urban Development Regulations Relating to Housing and Urban Development (Continued) OFFICE OF ASSISTANT SECRETARY FOR COMMUNITY PLANNING AND DEVELOPMENT, DEPARTMENT OF HOUSING AND URBAN...

  16. 24 CFR 570.403 - New Communities.

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ... 24 Housing and Urban Development 3 2011-04-01 2010-04-01 true New Communities. 570.403 Section 570.403 Housing and Urban Development Regulations Relating to Housing and Urban Development (Continued) OFFICE OF ASSISTANT SECRETARY FOR COMMUNITY PLANNING AND DEVELOPMENT, DEPARTMENT OF HOUSING AND URBAN...

  17. 24 CFR 570.464 - Project closeout.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ... 24 Housing and Urban Development 3 2010-04-01 2010-04-01 false Project closeout. 570.464 Section 570.464 Housing and Urban Development Regulations Relating to Housing and Urban Development (Continued... Project closeout. HUD will advise the recipient to initiate closeout procedures when HUD determines, in...

  18. 24 CFR 570.403 - New Communities.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ... 24 Housing and Urban Development 3 2010-04-01 2010-04-01 false New Communities. 570.403 Section 570.403 Housing and Urban Development Regulations Relating to Housing and Urban Development (Continued) OFFICE OF ASSISTANT SECRETARY FOR COMMUNITY PLANNING AND DEVELOPMENT, DEPARTMENT OF HOUSING AND URBAN...

  19. 7 CFR 3560.570 - Construction financing.

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ... 7 Agriculture 15 2010-01-01 2010-01-01 false Construction financing. 3560.570 Section 3560.570 Agriculture Regulations of the Department of Agriculture (Continued) RURAL HOUSING SERVICE, DEPARTMENT OF... financing. The requirements established in § 3560.71 apply to all applications involving off-farm labor...

  20. 24 CFR 570.464 - Project closeout.

    Code of Federal Regulations, 2014 CFR

    2014-04-01

    ... 24 Housing and Urban Development 3 2014-04-01 2013-04-01 true Project closeout. 570.464 Section 570.464 Housing and Urban Development Regulations Relating to Housing and Urban Development (Continued... Project closeout. HUD will advise the recipient to initiate closeout procedures when HUD determines, in...

  1. 24 CFR 570.464 - Project closeout.

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ... 24 Housing and Urban Development 3 2011-04-01 2010-04-01 true Project closeout. 570.464 Section 570.464 Housing and Urban Development Regulations Relating to Housing and Urban Development (Continued... Project closeout. HUD will advise the recipient to initiate closeout procedures when HUD determines, in...

  2. 24 CFR 570.464 - Project closeout.

    Code of Federal Regulations, 2013 CFR

    2013-04-01

    ... 24 Housing and Urban Development 3 2013-04-01 2013-04-01 false Project closeout. 570.464 Section 570.464 Housing and Urban Development Regulations Relating to Housing and Urban Development (Continued... Project closeout. HUD will advise the recipient to initiate closeout procedures when HUD determines, in...

  3. 24 CFR 570.464 - Project closeout.

    Code of Federal Regulations, 2012 CFR

    2012-04-01

    ... 24 Housing and Urban Development 3 2012-04-01 2012-04-01 false Project closeout. 570.464 Section 570.464 Housing and Urban Development Regulations Relating to Housing and Urban Development (Continued... Project closeout. HUD will advise the recipient to initiate closeout procedures when HUD determines, in...

  4. 29 CFR 570.7 - Documentary evidence required for issuance of a certificate of age.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... 29 Labor 3 2014-07-01 2014-07-01 false Documentary evidence required for issuance of a certificate of age. 570.7 Section 570.7 Labor Regulations Relating to Labor (Continued) WAGE AND HOUR DIVISION, DEPARTMENT OF LABOR REGULATIONS CHILD LABOR REGULATIONS, ORDERS AND STATEMENTS OF INTERPRETATION Certificates of Age § 570.7 Documentary evidence...

  5. 29 CFR 570.7 - Documentary evidence required for issuance of a certificate of age.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... 29 Labor 3 2011-07-01 2011-07-01 false Documentary evidence required for issuance of a certificate of age. 570.7 Section 570.7 Labor Regulations Relating to Labor (Continued) WAGE AND HOUR DIVISION, DEPARTMENT OF LABOR REGULATIONS CHILD LABOR REGULATIONS, ORDERS AND STATEMENTS OF INTERPRETATION Certificates of Age § 570.7 Documentary evidence...

  6. 29 CFR 570.7 - Documentary evidence required for issuance of a certificate of age.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... 29 Labor 3 2012-07-01 2012-07-01 false Documentary evidence required for issuance of a certificate of age. 570.7 Section 570.7 Labor Regulations Relating to Labor (Continued) WAGE AND HOUR DIVISION, DEPARTMENT OF LABOR REGULATIONS CHILD LABOR REGULATIONS, ORDERS AND STATEMENTS OF INTERPRETATION Certificates of Age § 570.7 Documentary evidence...

  7. 29 CFR 570.7 - Documentary evidence required for issuance of a certificate of age.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 29 Labor 3 2010-07-01 2010-07-01 false Documentary evidence required for issuance of a certificate of age. 570.7 Section 570.7 Labor Regulations Relating to Labor (Continued) WAGE AND HOUR DIVISION, DEPARTMENT OF LABOR REGULATIONS CHILD LABOR REGULATIONS, ORDERS AND STATEMENTS OF INTERPRETATION Certificates of Age § 570.7 Documentary evidence...

  8. 29 CFR 570.7 - Documentary evidence required for issuance of a certificate of age.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... 29 Labor 3 2013-07-01 2013-07-01 false Documentary evidence required for issuance of a certificate of age. 570.7 Section 570.7 Labor Regulations Relating to Labor (Continued) WAGE AND HOUR DIVISION, DEPARTMENT OF LABOR REGULATIONS CHILD LABOR REGULATIONS, ORDERS AND STATEMENTS OF INTERPRETATION Certificates of Age § 570.7 Documentary evidence...

  9. 24 CFR 570.486 - Local government requirements.

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ... 24 Housing and Urban Development 3 2011-04-01 2010-04-01 true Local government requirements. 570... Development Block Grant Program § 570.486 Local government requirements. (a) Citizen participation requirements of a unit of general local government. Each unit of general local government shall meet the...

  10. 24 CFR 570.486 - Local government requirements.

    Code of Federal Regulations, 2013 CFR

    2013-04-01

    ... 24 Housing and Urban Development 3 2013-04-01 2013-04-01 false Local government requirements. 570... Development Block Grant Program § 570.486 Local government requirements. (a) Citizen participation requirements of a unit of general local government. Each unit of general local government shall meet the...

  11. Degradation of magnesium and its alloys: dependence on the composition of the synthetic biological media.

    PubMed

    Mueller, Wolf-Dieter; de Mele, Monica Fernández Lorenzo; Nascimento, Maria Lucia; Zeddies, Miriam

    2009-08-01

    Magnesium and its alloys are highly degradable metals that are potentially useful as biomaterials, especially in orthopaedic and cardiovascular applications. However, the in vivo corrosion has proved to be too high. Because of the complexity of in vivo conditions, a careful study of the corrosion of magnesium in synthetic solutions that simulate the in vivo environment is necessary as a first approach to predict the actual in vivo situation. The aim of this work was to evaluate the influence of the electrolyte composition on the corrosion behavior of magnesium and two Mg-alloys in synthetic biological media. Pure magnesium and its alloys (AZ31 and LAE442) were employed in the experiments. Electrochemical potentiodynamic polarization curves were recorded in sodium chloride and PBS electrolytes with different chloride ion and albumin concentration. Optical and SEM observations complemented by EDX analysis were made. The results showed that magnesium corrosion is localized in chloride- and albumin-containing buffer solutions. They also showed that the chloride concentration and the presence of buffer and protein strongly affect the electrochemical behavior of magnesium and magnesium alloys.

  12. Biomarker selection for determining bone biocompatibility of pure magnesium processed by equal channel angular pressing (ECAP) using immunohistochemistry

    NASA Astrophysics Data System (ADS)

    Handayani, Lisa; Sulistyani, Lilies Dwi; Supriadi, Sugeng; Priosoeryanto, Bambang Pontjo; Latief, Benny Syariefsyah

    2018-02-01

    Since grain refinement is proved to be favorable to improve mechanical properties and corrosion resistance, a new conceptual metal forming process, equal channel angular pressing (ECAP), has been carried out on magnesium, a very promising biodegradable material in the field of oral and maxillofacial surgery. The popularity of immunohisto-chemistry (IHC) has been rising following the discovery of biomarker. In the meantime, more antibodies being produced for research have been continuously rising and becoming more varied. This review provides a conceptual framework to understand the roles of IHC on determination of bone biocompatibility to ECAP magnesium by selecting biomarker and point needed to either select or make an antibody to the target. From the review, it has been concluded that the most suitable biomarkers for biocompatibility test of bone implanted with ECAP magnesium are collagen-1, osteocalcin, smooth muscle actin, and CD68.

  13. 29 CFR 570.53 - Coal-mine occupations (Order 3).

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 29 Labor 3 2010-07-01 2010-07-01 false Coal-mine occupations (Order 3). 570.53 Section 570.53... § 570.53 Coal-mine occupations (Order 3). (a) Finding and declaration of fact. All occupations in or about any coal mine, except the occupation of slate or other refuse picking at a picking table or...

  14. 29 CFR 570.53 - Coal-mine occupations (Order 3).

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... 29 Labor 3 2012-07-01 2012-07-01 false Coal-mine occupations (Order 3). 570.53 Section 570.53... § 570.53 Coal-mine occupations (Order 3). (a) Finding and declaration of fact. All occupations in or about any coal mine, except the occupation of slate or other refuse picking at a picking table or...

  15. 29 CFR 570.53 - Coal-mine occupations (Order 3).

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... 29 Labor 3 2011-07-01 2011-07-01 false Coal-mine occupations (Order 3). 570.53 Section 570.53... § 570.53 Coal-mine occupations (Order 3). (a) Finding and declaration of fact. All occupations in or about any coal mine, except the occupation of slate or other refuse picking at a picking table or...

  16. 29 CFR 570.53 - Coal-mine occupations (Order 3).

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... 29 Labor 3 2013-07-01 2013-07-01 false Coal-mine occupations (Order 3). 570.53 Section 570.53... § 570.53 Coal-mine occupations (Order 3). (a) Finding and declaration of fact. All occupations in or about any coal mine, except the occupation of slate or other refuse picking at a picking table or...

  17. 29 CFR 570.53 - Coal-mine occupations (Order 3).

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... 29 Labor 3 2014-07-01 2014-07-01 false Coal-mine occupations (Order 3). 570.53 Section 570.53... § 570.53 Coal-mine occupations (Order 3). (a) Finding and declaration of fact. All occupations in or about any coal mine, except the occupation of slate or other refuse picking at a picking table or...

  18. 48 CFR 2009.570-5 - Contract clauses.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... COMPETITION AND ACQUISITION PLANNING CONTRACTOR QUALIFICATIONS Organizational Conflicts of Interest 2009.570-5 Contract clauses. (a) General contract clause. All contracts and simplified acquisitions of the types set forth in 2009.570-4(b) must include the clause entitled, “Contractor Organizational Conflicts of...

  19. 21 CFR 570.38 - Determination of food additive status.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ... 21 Food and Drugs 6 2010-04-01 2010-04-01 false Determination of food additive status. 570.38... (CONTINUED) ANIMAL DRUGS, FEEDS, AND RELATED PRODUCTS FOOD ADDITIVES Food Additive Safety § 570.38 Determination of food additive status. (a) The Commissioner may, in accordance with § 570.35 (b)(4) or (c)(5...

  20. 21 CFR 570.38 - Determination of food additive status.

    Code of Federal Regulations, 2014 CFR

    2014-04-01

    ... 21 Food and Drugs 6 2014-04-01 2014-04-01 false Determination of food additive status. 570.38... (CONTINUED) ANIMAL DRUGS, FEEDS, AND RELATED PRODUCTS FOOD ADDITIVES Food Additive Safety § 570.38 Determination of food additive status. (a) The Commissioner may, in accordance with § 570.35 (b)(4) or (c)(5...

  1. 21 CFR 570.38 - Determination of food additive status.

    Code of Federal Regulations, 2012 CFR

    2012-04-01

    ... 21 Food and Drugs 6 2012-04-01 2012-04-01 false Determination of food additive status. 570.38... (CONTINUED) ANIMAL DRUGS, FEEDS, AND RELATED PRODUCTS FOOD ADDITIVES Food Additive Safety § 570.38 Determination of food additive status. (a) The Commissioner may, in accordance with § 570.35 (b)(4) or (c)(5...

  2. 21 CFR 570.38 - Determination of food additive status.

    Code of Federal Regulations, 2013 CFR

    2013-04-01

    ... 21 Food and Drugs 6 2013-04-01 2013-04-01 false Determination of food additive status. 570.38... (CONTINUED) ANIMAL DRUGS, FEEDS, AND RELATED PRODUCTS FOOD ADDITIVES Food Additive Safety § 570.38 Determination of food additive status. (a) The Commissioner may, in accordance with § 570.35 (b)(4) or (c)(5...

  3. 21 CFR 570.38 - Determination of food additive status.

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ... 21 Food and Drugs 6 2011-04-01 2011-04-01 false Determination of food additive status. 570.38... (CONTINUED) ANIMAL DRUGS, FEEDS, AND RELATED PRODUCTS FOOD ADDITIVES Food Additive Safety § 570.38 Determination of food additive status. (a) The Commissioner may, in accordance with § 570.35 (b)(4) or (c)(5...

  4. 24 CFR 570.442 - Reallocations-Insular Areas.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ... 24 Housing and Urban Development 3 2010-04-01 2010-04-01 false Reallocations-Insular Areas. 570... HOUSING AND URBAN DEVELOPMENT COMMUNITY FACILITIES COMMUNITY DEVELOPMENT BLOCK GRANTS Small Cities, Non-Entitlement CDBG Grants in Hawaii and Insular Areas Programs § 570.442 Reallocations-Insular Areas. (a) Any...

  5. 31 CFR 570.311 - United States.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... 31 Money and Finance:Treasury 3 2012-07-01 2012-07-01 false United States. 570.311 Section 570.311 Money and Finance: Treasury Regulations Relating to Money and Finance (Continued) OFFICE OF FOREIGN... United States. The term United States means the United States, its territories and possessions, and all...

  6. 31 CFR 570.311 - United States.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... 31 Money and Finance:Treasury 3 2014-07-01 2014-07-01 false United States. 570.311 Section 570.311 Money and Finance: Treasury Regulations Relating to Money and Finance (Continued) OFFICE OF FOREIGN... United States. The term United States means the United States, its territories and possessions, and all...

  7. 31 CFR 570.311 - United States.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... 31 Money and Finance:Treasury 3 2013-07-01 2013-07-01 false United States. 570.311 Section 570.311 Money and Finance: Treasury Regulations Relating to Money and Finance (Continued) OFFICE OF FOREIGN... United States. The term United States means the United States, its territories and possessions, and all...

  8. 31 CFR 570.311 - United States.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... 31 Money and Finance:Treasury 3 2011-07-01 2011-07-01 false United States. 570.311 Section 570.311 Money and Finance: Treasury Regulations Relating to Money and Finance (Continued) OFFICE OF FOREIGN... United States. The term United States means the United States, its territories and possessions, and all...

  9. 29 CFR 570.6 - Contents and disposition of certificates of age.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... 29 Labor 3 2012-07-01 2012-07-01 false Contents and disposition of certificates of age. 570.6... REGULATIONS CHILD LABOR REGULATIONS, ORDERS AND STATEMENTS OF INTERPRETATION Certificates of Age § 570.6 Contents and disposition of certificates of age. (a) Except as provided in §§ 570.9 and 570.10, a...

  10. 29 CFR 570.6 - Contents and disposition of certificates of age.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... 29 Labor 3 2011-07-01 2011-07-01 false Contents and disposition of certificates of age. 570.6... REGULATIONS CHILD LABOR REGULATIONS, ORDERS AND STATEMENTS OF INTERPRETATION Certificates of Age § 570.6 Contents and disposition of certificates of age. (a) Except as provided in §§ 570.9 and 570.10, a...

  11. 29 CFR 570.6 - Contents and disposition of certificates of age.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... 29 Labor 3 2013-07-01 2013-07-01 false Contents and disposition of certificates of age. 570.6... REGULATIONS CHILD LABOR REGULATIONS, ORDERS AND STATEMENTS OF INTERPRETATION Certificates of Age § 570.6 Contents and disposition of certificates of age. (a) Except as provided in §§ 570.9 and 570.10, a...

  12. Biocorrosion properties and blood and cell compatibility of pure iron as a biodegradable biomaterial.

    PubMed

    Zhang, Erlin; Chen, Haiyan; Shen, Feng

    2010-07-01

    Biocorrosion properties and blood- and cell compatibility of pure iron were studied in comparison with 316L stainless steel and Mg-Mn-Zn magnesium alloy to reveal the possibility of pure iron as a biodegradable biomaterial. Both electrochemical and weight loss tests showed that pure iron showed a relatively high corrosion rate at the first several days and then decreased to a low level during the following immersion due to the formation of phosphates on the surface. However, the corrosion of pure iron did not cause significant increase in pH value to the solution. In comparison with 316L and Mg-Mn-Zn alloy, the pure iron exhibited biodegradable property in a moderate corrosion rate. Pure iron possessed similar dynamic blood clotting time, prothrombin time and plasma recalcification time to 316L and Mg-Mn-Zn alloy, but a lower hemolysis ratio and a significant lower number density of adhered platelets. MTT results revealed that the extract except the one with 25% 24 h extract actually displayed toxicity to cells and the toxicity increased with the increasing of the iron ion concentration and the incubation time. It was thought there should be an iron ion concentration threshold in the effect of iron ion on the cell toxicity.

  13. Preparation of antimicrobial fabric using magnesium-based PET masterbatch

    NASA Astrophysics Data System (ADS)

    Zhu, Yimin; Wang, Ying; Sha, Lin; Zhao, Jiao

    2017-12-01

    The magnesium-based antimicrobial polyethylene terephthalate (PET) masterbatch (MAPM) was extruded from twin screw extruder by melting-and-mixing method, using magnesium-based antimicrobial agent (MAA) as the functional material for the first time. The magnesium-based antimicrobial fabric (MAPF) was prepared using MAPM and pure PET resin by high-speed melt-spinning technology and weaving technology for the first time. The materials used in this work were healthy to human body and friendly to environment. The characteristics of MAA, MAPM and MAPF were studied by X-ray diffraction (XRD), scanning electron microscopy (SEM) and transmission electron microscopy (TEM). When the MAPM (MAA) content reached to 25 wt.% (5 wt.%) in MAPF, the MAA had excellent dispersion and compatibility in MAPF, and the MAPF had good physico-mechanical properties. Then the MAPF presented excellent spinnability and antimicrobial property against Escherichia coli (E. coli), Staphylococcus aureus (S. aureus), Candida albicans (C. albicans) and Aspergillus niger (A. niger), with pretty good laundering durability.

  14. Ion release from magnesium materials in physiological solutions under different oxygen tensions.

    PubMed

    Feyerabend, Frank; Drücker, Heiko; Laipple, Daniel; Vogt, Carla; Stekker, Michael; Hort, Norbert; Willumeit, Regine

    2012-01-01

    Although magnesium as degradable biomaterial already showed clinical proof of concepts, the design of new alloys requires predictive in vitro methods, which are still lacking. Incubation under cell culture conditions to obtain "physiological" corrosion may be a solution. The aim of this study was to analyse the influence of different solutions, addition of proteins and of oxygen availability on the corrosion of different magnesium materials (pure Mg, WE43, and E11) with different surface finishing. Oxygen content in solution, pH, osmolality and ion release were determined. Corrosion led to a reduction of oxygen in solution. The influence of oxygen on pH was enhanced by proteins, while osmolality was not influenced. Magnesium ion release was solution-dependent and enhanced in the initial phase by proteins with delayed release of alloying elements. The main corrosion product formed was magnesium carbonate. Therefore, cell culture conditions are proposed as first step toward physiological corrosion.

  15. In Situ Time-Resolved Measurements of Extension Twinning During Dynamic Compression of Polycrystalline Magnesium

    NASA Astrophysics Data System (ADS)

    Hustedt, C. J.; Lambert, P. K.; Kannan, V.; Huskins-Retzlaff, E. L.; Casem, D. T.; Tate, M. W.; Philipp, H. T.; Woll, A. R.; Purohit, P.; Weiss, J. T.; Gruner, S. M.; Ramesh, K. T.; Hufnagel, T. C.

    2018-04-01

    We report in situ time-resolved measurements of the dynamic evolution of the volume fraction of extension twins in polycrystalline pure magnesium and in the AZ31B magnesium alloy, using synchrotron x-ray diffraction during compressive loading at high strain rates. The dynamic evolution of the twinning volume fraction leads to a dynamic evolution of the texture. Although both the pure metal and the alloy had similar initial textures, we observe that the evolution of texture is slower in the alloy. We also measured the evolution of the lattice strains in each material during deformation which, together with the twin volume fractions, allows us to place some constraints on the relative contributions of dislocation-based slip and deformation twinning to the overall plastic deformation during the dynamic deformations.

  16. 24 CFR 570.911 - Reduction, withdrawal, or adjustment of a grant or other appropriate action.

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ... 24 Housing and Urban Development 3 2011-04-01 2010-04-01 true Reduction, withdrawal, or adjustment of a grant or other appropriate action. 570.911 Section 570.911 Housing and Urban Development... DEVELOPMENT BLOCK GRANTS Performance Reviews § 570.911 Reduction, withdrawal, or adjustment of a grant or...

  17. 24 CFR 570.911 - Reduction, withdrawal, or adjustment of a grant or other appropriate action.

    Code of Federal Regulations, 2013 CFR

    2013-04-01

    ... 24 Housing and Urban Development 3 2013-04-01 2013-04-01 false Reduction, withdrawal, or adjustment of a grant or other appropriate action. 570.911 Section 570.911 Housing and Urban Development... DEVELOPMENT BLOCK GRANTS Performance Reviews § 570.911 Reduction, withdrawal, or adjustment of a grant or...

  18. 24 CFR 570.911 - Reduction, withdrawal, or adjustment of a grant or other appropriate action.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ... 24 Housing and Urban Development 3 2010-04-01 2010-04-01 false Reduction, withdrawal, or adjustment of a grant or other appropriate action. 570.911 Section 570.911 Housing and Urban Development... DEVELOPMENT BLOCK GRANTS Performance Reviews § 570.911 Reduction, withdrawal, or adjustment of a grant or...

  19. 24 CFR 570.911 - Reduction, withdrawal, or adjustment of a grant or other appropriate action.

    Code of Federal Regulations, 2012 CFR

    2012-04-01

    ... 24 Housing and Urban Development 3 2012-04-01 2012-04-01 false Reduction, withdrawal, or adjustment of a grant or other appropriate action. 570.911 Section 570.911 Housing and Urban Development... DEVELOPMENT BLOCK GRANTS Performance Reviews § 570.911 Reduction, withdrawal, or adjustment of a grant or...

  20. 14 CFR 121.570 - Airplane evacuation capability.

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ... 14 Aeronautics and Space 3 2010-01-01 2010-01-01 false Airplane evacuation capability. 121.570... REQUIREMENTS: DOMESTIC, FLAG, AND SUPPLEMENTAL OPERATIONS Flight Operations § 121.570 Airplane evacuation capability. (a) No person may cause an airplane carrying passengers to be moved on the surface, take off, or...

  1. 14 CFR 121.570 - Airplane evacuation capability.

    Code of Federal Regulations, 2012 CFR

    2012-01-01

    ... 14 Aeronautics and Space 3 2012-01-01 2012-01-01 false Airplane evacuation capability. 121.570... REQUIREMENTS: DOMESTIC, FLAG, AND SUPPLEMENTAL OPERATIONS Flight Operations § 121.570 Airplane evacuation capability. (a) No person may cause an airplane carrying passengers to be moved on the surface, take off, or...

  2. 14 CFR 121.570 - Airplane evacuation capability.

    Code of Federal Regulations, 2011 CFR

    2011-01-01

    ... 14 Aeronautics and Space 3 2011-01-01 2011-01-01 false Airplane evacuation capability. 121.570... REQUIREMENTS: DOMESTIC, FLAG, AND SUPPLEMENTAL OPERATIONS Flight Operations § 121.570 Airplane evacuation capability. (a) No person may cause an airplane carrying passengers to be moved on the surface, take off, or...

  3. 14 CFR 121.570 - Airplane evacuation capability.

    Code of Federal Regulations, 2014 CFR

    2014-01-01

    ... 14 Aeronautics and Space 3 2014-01-01 2014-01-01 false Airplane evacuation capability. 121.570... REQUIREMENTS: DOMESTIC, FLAG, AND SUPPLEMENTAL OPERATIONS Flight Operations § 121.570 Airplane evacuation capability. (a) No person may cause an airplane carrying passengers to be moved on the surface, take off, or...

  4. 14 CFR 121.570 - Airplane evacuation capability.

    Code of Federal Regulations, 2013 CFR

    2013-01-01

    ... 14 Aeronautics and Space 3 2013-01-01 2013-01-01 false Airplane evacuation capability. 121.570... REQUIREMENTS: DOMESTIC, FLAG, AND SUPPLEMENTAL OPERATIONS Flight Operations § 121.570 Airplane evacuation capability. (a) No person may cause an airplane carrying passengers to be moved on the surface, take off, or...

  5. 28 CFR 570.41 - Medical escorted trips.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... 28 Judicial Administration 2 2013-07-01 2013-07-01 false Medical escorted trips. 570.41 Section... COMMUNITY PROGRAMS Escorted Trips § 570.41 Medical escorted trips. (a) Medical escorted trips are intended to provide an inmate with medical treatment not available within the institution. There are two types...

  6. 28 CFR 570.41 - Medical escorted trips.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 28 Judicial Administration 2 2010-07-01 2010-07-01 false Medical escorted trips. 570.41 Section... COMMUNITY PROGRAMS Escorted Trips § 570.41 Medical escorted trips. (a) Medical escorted trips are intended to provide an inmate with medical treatment not available within the institution. There are two types...

  7. 28 CFR 570.37 - Violation of furlough.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 28 Judicial Administration 2 2010-07-01 2010-07-01 false Violation of furlough. 570.37 Section 570.37 Judicial Administration BUREAU OF PRISONS, DEPARTMENT OF JUSTICE COMMUNITY PROGRAMS AND RELEASE.... (a) Staff shall process as an escapee an inmate who absconds from furlough. (b) Staff may take...

  8. 24 CFR 570.604 - Environmental standards.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ... 24 Housing and Urban Development 3 2010-04-01 2010-04-01 false Environmental standards. 570.604... § 570.604 Environmental standards. For purposes of section 104(g) of the Act, the regulations in 24 CFR part 58 specify the other provisions of law which further the purposes of the National Environmental...

  9. 24 CFR 570.604 - Environmental standards.

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ... 24 Housing and Urban Development 3 2011-04-01 2010-04-01 true Environmental standards. 570.604... § 570.604 Environmental standards. For purposes of section 104(g) of the Act, the regulations in 24 CFR part 58 specify the other provisions of law which further the purposes of the National Environmental...

  10. 48 CFR 1836.570 - NASA solicitation provisions and contract clause.

    Code of Federal Regulations, 2012 CFR

    2012-10-01

    ... 48 Federal Acquisition Regulations System 6 2012-10-01 2012-10-01 false NASA solicitation provisions and contract clause. 1836.570 Section 1836.570 Federal Acquisition Regulations System NATIONAL... CONTRACTS Contract Clauses 1836.570 NASA solicitation provisions and contract clause. (a) The contracting...

  11. 48 CFR 1836.570 - NASA solicitation provisions and contract clause.

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ... 48 Federal Acquisition Regulations System 6 2014-10-01 2014-10-01 false NASA solicitation provisions and contract clause. 1836.570 Section 1836.570 Federal Acquisition Regulations System NATIONAL... CONTRACTS Contract Clauses 1836.570 NASA solicitation provisions and contract clause. (a) The contracting...

  12. 48 CFR 1836.570 - NASA solicitation provisions and contract clause.

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ... 48 Federal Acquisition Regulations System 6 2013-10-01 2013-10-01 false NASA solicitation provisions and contract clause. 1836.570 Section 1836.570 Federal Acquisition Regulations System NATIONAL... CONTRACTS Contract Clauses 1836.570 NASA solicitation provisions and contract clause. (a) The contracting...

  13. 48 CFR 1836.570 - NASA solicitation provisions and contract clause.

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ... 48 Federal Acquisition Regulations System 6 2011-10-01 2011-10-01 false NASA solicitation provisions and contract clause. 1836.570 Section 1836.570 Federal Acquisition Regulations System NATIONAL... CONTRACTS Contract Clauses 1836.570 NASA solicitation provisions and contract clause. (a) The contracting...

  14. 48 CFR 1836.570 - NASA solicitation provisions and contract clause.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... 48 Federal Acquisition Regulations System 6 2010-10-01 2010-10-01 true NASA solicitation provisions and contract clause. 1836.570 Section 1836.570 Federal Acquisition Regulations System NATIONAL... CONTRACTS Contract Clauses 1836.570 NASA solicitation provisions and contract clause. (a) The contracting...

  15. Iron-magnesium alloy in the Earth's Core

    NASA Astrophysics Data System (ADS)

    Dubrovinskaia, N.; Dubrovinsky, L.; Abrikosov, I.

    2005-12-01

    Composition of the Earth's outer core is a geochemical parameter crucial for understanding the evolution and current dynamics of our planet. Since it was recognized that the liquid metallic outer core is about 10% less dense than pure iron, different elements lighter than iron, including Si, S, O, C, and H, were proposed as major or at least significantly abundant in Earth's core. However, combination of experimental results with theoretical and geochemical considerations shows that it is unlikely that any one of these elements can account for the density deficit on its own. In series of experiments in a multianvil apparatus and in electrically- and laser-heated diamond anvil cells, we demonstrate that high pressure promotes solubility of magnesium in iron and at megabar pressure range more than 10 at% of Mg can dissolve in Fe. At pressures above 95 to 100 GPa, molten iron reacts with periclase MgO forming an iron-magnesium alloy and iron oxide. Our observations suggest that magnesium can be an important light element in Earth's outer core, but it cannot account for the seismologically determined density deficit on its own.

  16. An Empirically-derived non-LTE XUV-Visible Spectral Synthesis Model of the M1 V Exoplanet Host Star GJ832

    NASA Astrophysics Data System (ADS)

    Linsky, Jeffrey; Fontenla, Juan; Witbrod, Jesse; France, Kevin

    2016-01-01

    GJ832 (HD 204961) is a nearby M1 V host star with two exoplanets: a Jovian mass planet and a super-Earth. We have obtained near-UV and far-UV spectra of GJ832 with the STIS and COS instruments on HST as part of the Cycle 19 MUSCLES pilot program (France et al. 2013). Our objective is to obtain the first accurate physical model for a representative M-dwarf host star in order to understand the stellar radiative emission at all wavelengths and to infer the radiation environment of their exoplanets that drives their atmospheric photochemistry.We have calculated a full non-LTE model for GJ 832 including the photosphere, chromosphere, transition region, and corona to fit the observed emission lines formed over a wide range of temperatures and the X-ray flux. Our one-dimensional semi-empirical model uses the Solar-Stellar Physical Modelling tools that are an offspring of the tools used by Fontenla and collaborators for computing solar models. For this model of GJ832, we calculate the populations of 52 atoms and ions and 20 molecules with 2 million spectral lines. We find excellent agreement with the observed H-alpha, CaII, MgII, CII, SiIV, CIV, and NV lines. Our model for GJ832 has a temperature minimum in the lower chromosphere much cooler than the Sun and then a steep temperature rise different from the Sun. The different thermal structure of GJ832 compared to the Sun results in the formation regions of the emission lines being different for the two stars. We also compute theradiative cooling rates as a function of height and temperature in the atmosphere of GJ832.This work is supported by grants from STScI to the University of Colorado.

  17. 24 CFR 570.490 - Recordkeeping requirements.

    Code of Federal Regulations, 2013 CFR

    2013-04-01

    ... establish and maintain such records as may be necessary to facilitate review and audit by HUD of the state's administration of CDBG funds under § 570.493. The content of records maintained by the state shall be as jointly... § 570.493. For fair housing and equal opportunity purposes, and as applicable, such records shall...

  18. 24 CFR 570.611 - Conflict of interest.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ... 24 Housing and Urban Development 3 2010-04-01 2010-04-01 false Conflict of interest. 570.611... § 570.611 Conflict of interest. (a) Applicability. (1) In the procurement of supplies, equipment, construction, and services by recipients and by subrecipients, the conflict of interest provisions in 24 CFR 85...

  19. 48 CFR 3409.570 - Offeror certification provision.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... 48 Federal Acquisition Regulations System 7 2010-10-01 2010-10-01 false Offeror certification provision. 3409.570 Section 3409.570 Federal Acquisition Regulations System DEPARTMENT OF EDUCATION ACQUISITION REGULATION COMPETITION AND ACQUISITION PLANNING CONTRACTOR QUALIFICATIONS Organizational Conflicts...

  20. 29 CFR 570.35a - Work experience and career exploration program.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... permitted in all occupations except the following: (1) Manufacturing and mining. (2) Occupations declared to...) introductory text of newly redesignated § 570.36 was revised, effective July 19, 2010. For the convenience of the user, the revised text is set forth as follows: § 570.36 Work experience and career exploration...

  1. 24 CFR 570.613 - Eligibility restrictions for certain resident aliens.

    Code of Federal Regulations, 2014 CFR

    2014-04-01

    ... resident aliens. 570.613 Section 570.613 Housing and Urban Development Regulations Relating to Housing and... Program Requirements § 570.613 Eligibility restrictions for certain resident aliens. (a) Restriction. Certain newly legalized aliens, as described in 24 CFR part 49, are not eligible to apply for benefits...

  2. 24 CFR 570.613 - Eligibility restrictions for certain resident aliens.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ... certain resident aliens. 570.613 Section 570.613 Housing and Urban Development Regulations Relating to... GRANTS Other Program Requirements § 570.613 Eligibility restrictions for certain resident aliens. (a) Restriction. Certain newly legalized aliens, as described in 24 CFR part 49, are not eligible to apply for...

  3. 24 CFR 570.613 - Eligibility restrictions for certain resident aliens.

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ... resident aliens. 570.613 Section 570.613 Housing and Urban Development Regulations Relating to Housing and... Program Requirements § 570.613 Eligibility restrictions for certain resident aliens. (a) Restriction. Certain newly legalized aliens, as described in 24 CFR part 49, are not eligible to apply for benefits...

  4. 24 CFR 570.613 - Eligibility restrictions for certain resident aliens.

    Code of Federal Regulations, 2012 CFR

    2012-04-01

    ... certain resident aliens. 570.613 Section 570.613 Housing and Urban Development Regulations Relating to... GRANTS Other Program Requirements § 570.613 Eligibility restrictions for certain resident aliens. (a) Restriction. Certain newly legalized aliens, as described in 24 CFR part 49, are not eligible to apply for...

  5. 24 CFR 570.613 - Eligibility restrictions for certain resident aliens.

    Code of Federal Regulations, 2013 CFR

    2013-04-01

    ... certain resident aliens. 570.613 Section 570.613 Housing and Urban Development Regulations Relating to... GRANTS Other Program Requirements § 570.613 Eligibility restrictions for certain resident aliens. (a) Restriction. Certain newly legalized aliens, as described in 24 CFR part 49, are not eligible to apply for...

  6. 48 CFR 570.603 - GSAR contract clauses.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... 48 Federal Acquisition Regulations System 4 2010-10-01 2010-10-01 false GSAR contract clauses. 570.603 Section 570.603 Federal Acquisition Regulations System GENERAL SERVICES ADMINISTRATION SPECIAL CONTRACTING PROGRAMS ACQUIRING LEASEHOLD INTERESTS IN REAL PROPERTY Solicitation Provisions and Contract...

  7. 48 CFR 570.602 - GSAR solicitation provisions.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... 48 Federal Acquisition Regulations System 4 2010-10-01 2010-10-01 false GSAR solicitation provisions. 570.602 Section 570.602 Federal Acquisition Regulations System GENERAL SERVICES ADMINISTRATION SPECIAL CONTRACTING PROGRAMS ACQUIRING LEASEHOLD INTERESTS IN REAL PROPERTY Solicitation Provisions and...

  8. 48 CFR 1823.570-2 - Contract clause.

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ... 48 Federal Acquisition Regulations System 6 2014-10-01 2014-10-01 false Contract clause. 1823.570-2 Section 1823.570-2 Federal Acquisition Regulations System NATIONAL AERONAUTICS AND SPACE ADMINISTRATION SOCIOECONOMIC PROGRAMS ENVIRONMENT, ENERGY AND WATER EFFICIENCY, RENEWABLE ENERGY TECHNOLOGIES...

  9. 48 CFR 1823.570-2 - Contract clause.

    Code of Federal Regulations, 2012 CFR

    2012-10-01

    ... 48 Federal Acquisition Regulations System 6 2012-10-01 2012-10-01 false Contract clause. 1823.570-2 Section 1823.570-2 Federal Acquisition Regulations System NATIONAL AERONAUTICS AND SPACE ADMINISTRATION SOCIOECONOMIC PROGRAMS ENVIRONMENT, ENERGY AND WATER EFFICIENCY, RENEWABLE ENERGY TECHNOLOGIES...

  10. 31 CFR 570.309 - Property; property interest.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... 31 Money and Finance:Treasury 3 2011-07-01 2011-07-01 false Property; property interest. 570.309 Section 570.309 Money and Finance: Treasury Regulations Relating to Money and Finance (Continued) OFFICE... or interests therein, present, future, or contingent. ...

  11. 31 CFR 570.309 - Property; property interest.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... 31 Money and Finance:Treasury 3 2014-07-01 2014-07-01 false Property; property interest. 570.309 Section 570.309 Money and Finance: Treasury Regulations Relating to Money and Finance (Continued) OFFICE... or interests therein, present, future, or contingent. ...

  12. 31 CFR 570.309 - Property; property interest.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... 31 Money and Finance:Treasury 3 2013-07-01 2013-07-01 false Property; property interest. 570.309 Section 570.309 Money and Finance: Treasury Regulations Relating to Money and Finance (Continued) OFFICE... or interests therein, present, future, or contingent. ...

  13. 31 CFR 570.309 - Property; property interest.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... 31 Money and Finance:Treasury 3 2012-07-01 2012-07-01 false Property; property interest. 570.309 Section 570.309 Money and Finance: Treasury Regulations Relating to Money and Finance (Continued) OFFICE... or interests therein, present, future, or contingent. ...

  14. 12 CFR 550.570 - What procedures govern the revocation?

    Code of Federal Regulations, 2011 CFR

    2011-01-01

    ... 12 Banks and Banking 5 2011-01-01 2011-01-01 false What procedures govern the revocation? 550.570 Section 550.570 Banks and Banking OFFICE OF THRIFT SUPERVISION, DEPARTMENT OF THE TREASURY FIDUCIARY POWERS OF SAVINGS ASSOCIATIONS Terminating Fiduciary Activities Revocation of Fiduciary Powers § 550.570...

  15. 12 CFR 550.570 - What procedures govern the revocation?

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ... 12 Banks and Banking 5 2010-01-01 2010-01-01 false What procedures govern the revocation? 550.570 Section 550.570 Banks and Banking OFFICE OF THRIFT SUPERVISION, DEPARTMENT OF THE TREASURY FIDUCIARY POWERS OF SAVINGS ASSOCIATIONS Terminating Fiduciary Activities Revocation of Fiduciary Powers § 550.570...

  16. Properties of boride-added powder metallurgy magnesium alloys

    NASA Astrophysics Data System (ADS)

    Tanaka, Atsushi; Yoshimura, Syota; Fujima, Takuya; Takagi, Ken-ichi

    2009-06-01

    Magnesium alloys with metallic borides, magnesium diboride (MgB2) or aluminum diboride (AlB2), were investigated regarding their mechanical properties, transverse rupture strength (TRS) and micro Vickers hardness (HV). The alloys were made from pure Mg, Al and B powders by mechanical alloying and hot pressing to have boride content of between 2.0 and 20 vol%. The alloy with AlB2 exhibited an obvious improvement of HV around a boride content of 6 vol% though the other alloy, with MgB2, did not. TRS showed moderate maxima around the same boride content region for the both alloys. X-ray diffraction measurements indicated an intermetallic compound, Mg17Al12, formed in the alloy with AlB2, which was consistent with its higher hardness.

  17. 21 CFR 570.19 - Pesticide chemicals in processed foods.

    Code of Federal Regulations, 2013 CFR

    2013-04-01

    ... 21 Food and Drugs 6 2013-04-01 2013-04-01 false Pesticide chemicals in processed foods. 570.19 Section 570.19 Food and Drugs FOOD AND DRUG ADMINISTRATION, DEPARTMENT OF HEALTH AND HUMAN SERVICES (CONTINUED) ANIMAL DRUGS, FEEDS, AND RELATED PRODUCTS FOOD ADDITIVES General Provisions § 570.19 Pesticide...

  18. 21 CFR 570.19 - Pesticide chemicals in processed foods.

    Code of Federal Regulations, 2014 CFR

    2014-04-01

    ... 21 Food and Drugs 6 2014-04-01 2014-04-01 false Pesticide chemicals in processed foods. 570.19 Section 570.19 Food and Drugs FOOD AND DRUG ADMINISTRATION, DEPARTMENT OF HEALTH AND HUMAN SERVICES (CONTINUED) ANIMAL DRUGS, FEEDS, AND RELATED PRODUCTS FOOD ADDITIVES General Provisions § 570.19 Pesticide...

  19. 21 CFR 570.19 - Pesticide chemicals in processed foods.

    Code of Federal Regulations, 2012 CFR

    2012-04-01

    ... 21 Food and Drugs 6 2012-04-01 2012-04-01 false Pesticide chemicals in processed foods. 570.19 Section 570.19 Food and Drugs FOOD AND DRUG ADMINISTRATION, DEPARTMENT OF HEALTH AND HUMAN SERVICES (CONTINUED) ANIMAL DRUGS, FEEDS, AND RELATED PRODUCTS FOOD ADDITIVES General Provisions § 570.19 Pesticide...

  20. 21 CFR 570.19 - Pesticide chemicals in processed foods.

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ... 21 Food and Drugs 6 2011-04-01 2011-04-01 false Pesticide chemicals in processed foods. 570.19 Section 570.19 Food and Drugs FOOD AND DRUG ADMINISTRATION, DEPARTMENT OF HEALTH AND HUMAN SERVICES (CONTINUED) ANIMAL DRUGS, FEEDS, AND RELATED PRODUCTS FOOD ADDITIVES General Provisions § 570.19 Pesticide...

  1. 21 CFR 570.19 - Pesticide chemicals in processed foods.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ... 21 Food and Drugs 6 2010-04-01 2010-04-01 false Pesticide chemicals in processed foods. 570.19 Section 570.19 Food and Drugs FOOD AND DRUG ADMINISTRATION, DEPARTMENT OF HEALTH AND HUMAN SERVICES (CONTINUED) ANIMAL DRUGS, FEEDS, AND RELATED PRODUCTS FOOD ADDITIVES General Provisions § 570.19 Pesticide...

  2. Production of magnesium metal

    DOEpatents

    Blencoe, James G [Harriman, TN; Anovitz, Lawrence M [Knoxville, TN; Palmer, Donald A [Oliver Springs, TN; Beard, James S [Martinsville, VA

    2012-04-10

    A process of producing magnesium metal includes providing magnesium carbonate, and reacting the magnesium carbonate to produce a magnesium-containing compound and carbon dioxide. The magnesium-containing compound is reacted to produce magnesium metal. The carbon dioxide is used as a reactant in a second process. In another embodiment of the process, a magnesium silicate is reacted with a caustic material to produce magnesium hydroxide. The magnesium hydroxide is reacted with a source of carbon dioxide to produce magnesium carbonate. The magnesium carbonate is reacted to produce a magnesium-containing compound and carbon dioxide. The magnesium-containing compound is reacted to produce magnesium metal. The invention also relates to the magnesium metal produced by the processes described herein.

  3. Size effects of nano-spaced basal stacking faults on the strength and deformation mechanisms of nanocrystalline pure hcp metals

    NASA Astrophysics Data System (ADS)

    Wang, Wen; Jiang, Ping; Yuan, Fuping; Wu, Xiaolei

    2018-05-01

    The size effects of nano-spaced basal stacking faults (SFs) on the tensile strength and deformation mechanisms of nanocrystalline pure cobalt and magnesium have been investigated by a series of large-scale 2D columnar and 3D molecular dynamics simulations. Unlike the strengthening effect of basal SFs on Mg alloys, the nano-spaced basal SFs are observed to have no strengthening effect on the nanocrystalline pure cobalt and magnesium from MD simulations. These observations could be attributed to the following two reasons: (i) Lots of new basal SFs are formed before (for cobalt) or simultaneously with (for magnesium) the other deformation mechanisms (i.e. the formation of twins and the < c + a > edge dislocations) during the tensile deformation; (ii) In hcp alloys, the segregation of alloy elements and impurities at typical interfaces, such as SFs, can stablilise them for enhancing the interactions with dislocation and thus elevating the strength. Without such segregation in pure hcp metals, the < c + a > edge dislocations can cut through the basal SFs although the interactions between the < c + a > dislocations and the pre-existing SFs/newly formed SFs are observed. The nano-spaced basal SFs are also found to have no restriction effect on the formation of deformation twins.

  4. 48 CFR 570.105-1 - Contracting by negotiation.

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ... 48 Federal Acquisition Regulations System 4 2014-10-01 2014-10-01 false Contracting by negotiation. 570.105-1 Section 570.105-1 Federal Acquisition Regulations System GENERAL SERVICES ADMINISTRATION... by negotiation. Contracting by negotiation is appropriate for acquiring space in a building through a...

  5. 48 CFR 570.105-1 - Contracting by negotiation.

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ... 48 Federal Acquisition Regulations System 4 2013-10-01 2013-10-01 false Contracting by negotiation. 570.105-1 Section 570.105-1 Federal Acquisition Regulations System GENERAL SERVICES ADMINISTRATION... by negotiation. Contracting by negotiation is appropriate for acquiring space in a building through a...

  6. 48 CFR 570.105-1 - Contracting by negotiation.

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ... 48 Federal Acquisition Regulations System 4 2011-10-01 2011-10-01 false Contracting by negotiation. 570.105-1 Section 570.105-1 Federal Acquisition Regulations System GENERAL SERVICES ADMINISTRATION... by negotiation. Contracting by negotiation is appropriate for acquiring space in a building through a...

  7. 48 CFR 570.105-1 - Contracting by negotiation.

    Code of Federal Regulations, 2012 CFR

    2012-10-01

    ... 48 Federal Acquisition Regulations System 4 2012-10-01 2012-10-01 false Contracting by negotiation. 570.105-1 Section 570.105-1 Federal Acquisition Regulations System GENERAL SERVICES ADMINISTRATION... by negotiation. Contracting by negotiation is appropriate for acquiring space in a building through a...

  8. 29 CFR 570.5 - Certificates of age and their effect.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... 29 Labor 3 2013-07-01 2013-07-01 false Certificates of age and their effect. 570.5 Section 570.5... CHILD LABOR REGULATIONS, ORDERS AND STATEMENTS OF INTERPRETATION Certificates of Age § 570.5 Certificates of age and their effect. (a) To protect an employer from unwitting violation of the minimum age...

  9. 29 CFR 570.5 - Certificates of age and their effect.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... 29 Labor 3 2012-07-01 2012-07-01 false Certificates of age and their effect. 570.5 Section 570.5... CHILD LABOR REGULATIONS, ORDERS AND STATEMENTS OF INTERPRETATION Certificates of Age § 570.5 Certificates of age and their effect. (a) To protect an employer from unwitting violation of the minimum age...

  10. 29 CFR 570.5 - Certificates of age and their effect.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... 29 Labor 3 2011-07-01 2011-07-01 false Certificates of age and their effect. 570.5 Section 570.5... CHILD LABOR REGULATIONS, ORDERS AND STATEMENTS OF INTERPRETATION Certificates of Age § 570.5 Certificates of age and their effect. (a) To protect an employer from unwitting violation of the minimum age...

  11. 24 CFR 570.406 - Formula miscalculation grants.

    Code of Federal Regulations, 2012 CFR

    2012-04-01

    ... 24 Housing and Urban Development 3 2012-04-01 2012-04-01 false Formula miscalculation grants. 570.406 Section 570.406 Housing and Urban Development Regulations Relating to Housing and Urban Development (Continued) OFFICE OF ASSISTANT SECRETARY FOR COMMUNITY PLANNING AND DEVELOPMENT, DEPARTMENT OF...

  12. 24 CFR 570.406 - Formula miscalculation grants.

    Code of Federal Regulations, 2014 CFR

    2014-04-01

    ... 24 Housing and Urban Development 3 2014-04-01 2013-04-01 true Formula miscalculation grants. 570.406 Section 570.406 Housing and Urban Development Regulations Relating to Housing and Urban Development (Continued) OFFICE OF ASSISTANT SECRETARY FOR COMMUNITY PLANNING AND DEVELOPMENT, DEPARTMENT OF...

  13. 24 CFR 570.406 - Formula miscalculation grants.

    Code of Federal Regulations, 2013 CFR

    2013-04-01

    ... 24 Housing and Urban Development 3 2013-04-01 2013-04-01 false Formula miscalculation grants. 570.406 Section 570.406 Housing and Urban Development Regulations Relating to Housing and Urban Development (Continued) OFFICE OF ASSISTANT SECRETARY FOR COMMUNITY PLANNING AND DEVELOPMENT, DEPARTMENT OF...

  14. 24 CFR 570.406 - Formula miscalculation grants.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ... 24 Housing and Urban Development 3 2010-04-01 2010-04-01 false Formula miscalculation grants. 570.406 Section 570.406 Housing and Urban Development Regulations Relating to Housing and Urban Development (Continued) OFFICE OF ASSISTANT SECRETARY FOR COMMUNITY PLANNING AND DEVELOPMENT, DEPARTMENT OF...

  15. 28 CFR 570.32 - Justification for furlough.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 28 Judicial Administration 2 2010-07-01 2010-07-01 false Justification for furlough. 570.32 Section 570.32 Judicial Administration BUREAU OF PRISONS, DEPARTMENT OF JUSTICE COMMUNITY PROGRAMS AND... plans; (3) To reestablish family and community ties; (4) To participate in selected educational, social...

  16. 24 CFR 570.206 - Program administrative costs.

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ... 24 Housing and Urban Development 3 2011-04-01 2010-04-01 true Program administrative costs. 570.206 Section 570.206 Housing and Urban Development Regulations Relating to Housing and Urban Development (Continued) OFFICE OF ASSISTANT SECRETARY FOR COMMUNITY PLANNING AND DEVELOPMENT, DEPARTMENT OF...

  17. 24 CFR 570.406 - Formula miscalculation grants.

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ... 24 Housing and Urban Development 3 2011-04-01 2010-04-01 true Formula miscalculation grants. 570.406 Section 570.406 Housing and Urban Development Regulations Relating to Housing and Urban Development (Continued) OFFICE OF ASSISTANT SECRETARY FOR COMMUNITY PLANNING AND DEVELOPMENT, DEPARTMENT OF...

  18. 24 CFR 570.503 - Agreements with subrecipients.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ... 24 Housing and Urban Development 3 2010-04-01 2010-04-01 false Agreements with subrecipients. 570.503 Section 570.503 Housing and Urban Development Regulations Relating to Housing and Urban Development (Continued) OFFICE OF ASSISTANT SECRETARY FOR COMMUNITY PLANNING AND DEVELOPMENT, DEPARTMENT OF...

  19. Production of magnesium metal

    DOEpatents

    Blencoe, James G [Harriman, TN; Anovitz, Lawrence M [Knoxville, TN; Palmer, Donald A [Oliver Springs, TN; Beard, James S [Martinsville, VA

    2010-02-23

    A process of producing magnesium metal includes providing magnesium carbonate, and reacting the magnesium carbonate to produce a magnesium-containing compound and carbon dioxide. The magnesium-containing compound is reacted to produce magnesium metal. The carbon dioxide is used as a reactant in a second process. In another embodiment of the process, a magnesium silicate is reacted with a caustic material to produce magnesium hydroxide. The magnesium hydroxide is reacted with a source of carbon dioxide to produce magnesium carbonate. The magnesium carbonate is reacted to produce a magnesium-containing compound and carbon dioxide. The magnesium-containing compound is reacted to produce magnesium metal. The invention further relates to a process for production of magnesium metal or a magnesium compound where an external source of carbon dioxide is not used in any of the reactions of the process. The invention also relates to the magnesium metal produced by the processes described herein.

  20. 48 CFR 536.570-5 - Working hours.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... 48 Federal Acquisition Regulations System 4 2010-10-01 2010-10-01 false Working hours. 536.570-5... CATEGORIES OF CONTRACTING CONSTRUCTION AND ARCHITECT-ENGINEER CONTRACTS Contract Clauses 536.570-5 Working hours. Insert 552.236-74, Working Hours, in solicitations and contracts if construction, dismantling...

  1. 24 CFR 570.4 - Allocation of funds.

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ... 24 Housing and Urban Development 3 2011-04-01 2010-04-01 true Allocation of funds. 570.4 Section 570.4 Housing and Urban Development Regulations Relating to Housing and Urban Development (Continued) OFFICE OF ASSISTANT SECRETARY FOR COMMUNITY PLANNING AND DEVELOPMENT, DEPARTMENT OF HOUSING AND URBAN...

  2. 24 CFR 570.304 - Making of grants.

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ... 24 Housing and Urban Development 3 2011-04-01 2010-04-01 true Making of grants. 570.304 Section 570.304 Housing and Urban Development Regulations Relating to Housing and Urban Development (Continued) OFFICE OF ASSISTANT SECRETARY FOR COMMUNITY PLANNING AND DEVELOPMENT, DEPARTMENT OF HOUSING AND URBAN...

  3. 24 CFR 570.800 - Urban renewal regulations.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ... 24 Housing and Urban Development 3 2010-04-01 2010-04-01 false Urban renewal regulations. 570.800 Section 570.800 Housing and Urban Development Regulations Relating to Housing and Urban Development (Continued) OFFICE OF ASSISTANT SECRETARY FOR COMMUNITY PLANNING AND DEVELOPMENT, DEPARTMENT OF HOUSING AND...

  4. 24 CFR 570.800 - Urban renewal regulations.

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ... 24 Housing and Urban Development 3 2011-04-01 2010-04-01 true Urban renewal regulations. 570.800 Section 570.800 Housing and Urban Development Regulations Relating to Housing and Urban Development (Continued) OFFICE OF ASSISTANT SECRETARY FOR COMMUNITY PLANNING AND DEVELOPMENT, DEPARTMENT OF HOUSING AND...

  5. 24 CFR 570.405 - The insular areas.

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ... 24 Housing and Urban Development 3 2011-04-01 2010-04-01 true The insular areas. 570.405 Section 570.405 Housing and Urban Development Regulations Relating to Housing and Urban Development (Continued) OFFICE OF ASSISTANT SECRETARY FOR COMMUNITY PLANNING AND DEVELOPMENT, DEPARTMENT OF HOUSING AND URBAN...

  6. 24 CFR 570.304 - Making of grants.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ... 24 Housing and Urban Development 3 2010-04-01 2010-04-01 false Making of grants. 570.304 Section 570.304 Housing and Urban Development Regulations Relating to Housing and Urban Development (Continued) OFFICE OF ASSISTANT SECRETARY FOR COMMUNITY PLANNING AND DEVELOPMENT, DEPARTMENT OF HOUSING AND URBAN...

  7. 24 CFR 570.509 - Grant closeout procedures.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ... 24 Housing and Urban Development 3 2010-04-01 2010-04-01 false Grant closeout procedures. 570.509 Section 570.509 Housing and Urban Development Regulations Relating to Housing and Urban Development (Continued) OFFICE OF ASSISTANT SECRETARY FOR COMMUNITY PLANNING AND DEVELOPMENT, DEPARTMENT OF HOUSING AND...

  8. 24 CFR 570.4 - Allocation of funds.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ... 24 Housing and Urban Development 3 2010-04-01 2010-04-01 false Allocation of funds. 570.4 Section 570.4 Housing and Urban Development Regulations Relating to Housing and Urban Development (Continued) OFFICE OF ASSISTANT SECRETARY FOR COMMUNITY PLANNING AND DEVELOPMENT, DEPARTMENT OF HOUSING AND URBAN...

  9. 48 CFR 570.105-1 - Contracting by negotiation.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... 48 Federal Acquisition Regulations System 4 2010-10-01 2010-10-01 false Contracting by negotiation. 570.105-1 Section 570.105-1 Federal Acquisition Regulations System GENERAL SERVICES ADMINISTRATION... by negotiation. Contracting by negotiation is usually appropriate for acquiring space in a building...

  10. 9 CFR 590.570 - Pasteurization of liquid eggs.

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ... 9 Animals and Animal Products 2 2010-01-01 2010-01-01 false Pasteurization of liquid eggs. 590.570... EGG PRODUCTS INSPECTION INSPECTION OF EGGS AND EGG PRODUCTS (EGG PRODUCTS INSPECTION ACT) Sanitary, Processing, and Facility Requirements § 590.570 Pasteurization of liquid eggs. (a) Pasteurization facilities...

  11. 29 CFR 570.71 - Occupations involved in agriculture.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... 29 Labor 3 2012-07-01 2012-07-01 false Occupations involved in agriculture. 570.71 Section 570.71... CHILD LABOR REGULATIONS, ORDERS AND STATEMENTS OF INTERPRETATION 1-Occupations in Agriculture... agriculture. (a) Findings and declarations of fact as to specific occupations. The following occupations in...

  12. 29 CFR 570.71 - Occupations involved in agriculture.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... 29 Labor 3 2011-07-01 2011-07-01 false Occupations involved in agriculture. 570.71 Section 570.71... CHILD LABOR REGULATIONS, ORDERS AND STATEMENTS OF INTERPRETATION 1-Occupations in Agriculture... agriculture. (a) Findings and declarations of fact as to specific occupations. The following occupations in...

  13. 29 CFR 570.71 - Occupations involved in agriculture.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... 29 Labor 3 2013-07-01 2013-07-01 false Occupations involved in agriculture. 570.71 Section 570.71... CHILD LABOR REGULATIONS, ORDERS AND STATEMENTS OF INTERPRETATION 1-Occupations in Agriculture... agriculture. (a) Findings and declarations of fact as to specific occupations. The following occupations in...

  14. 29 CFR 570.71 - Occupations involved in agriculture.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... 29 Labor 3 2014-07-01 2014-07-01 false Occupations involved in agriculture. 570.71 Section 570.71... CHILD LABOR REGULATIONS, ORDERS AND STATEMENTS OF INTERPRETATION 1-Occupations in Agriculture... agriculture. (a) Findings and declarations of fact as to specific occupations. The following occupations in...

  15. 29 CFR 570.71 - Occupations involved in agriculture.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 29 Labor 3 2010-07-01 2010-07-01 false Occupations involved in agriculture. 570.71 Section 570.71... CHILD LABOR REGULATIONS, ORDERS AND STATEMENTS OF INTERPRETATION 1-Occupations in Agriculture... agriculture. (a) Findings and declarations of fact as to specific occupations. The following occupations in...

  16. 9 CFR 590.570 - Pasteurization of liquid eggs.

    Code of Federal Regulations, 2011 CFR

    2011-01-01

    ... 9 Animals and Animal Products 2 2011-01-01 2011-01-01 false Pasteurization of liquid eggs. 590.570... EGG PRODUCTS INSPECTION INSPECTION OF EGGS AND EGG PRODUCTS (EGG PRODUCTS INSPECTION ACT) Sanitary, Processing, and Facility Requirements § 590.570 Pasteurization of liquid eggs. (a) Pasteurization facilities...

  17. Magnesium based degradable biomaterials: A review

    NASA Astrophysics Data System (ADS)

    Gu, Xue-Nan; Li, Shuang-Shuang; Li, Xiao-Ming; Fan, Yu-Bo

    2014-09-01

    Magnesium has been suggested as a revolutionary biodegradable metal for biomedical applications. The corrosion of magnesium, however, is too rapid to match the rates of tissue healing and, additionally, exhibits the localized corrosion mechanism. Thus it is necessary to control the corrosion behaviors of magnesium for their practical use. This paper comprehensively reviews the research progress on the development of representative magnesium based alloys, including Mg-Ca, Mg-Sr, Mg-Zn and Mg-REE alloy systems as well as the bulk metallic glass. The influence of alloying element on their microstructures, mechanical properties and corrosion behaviors is summarized. The mechanical and corrosion properties of wrought magnesium alloys are also discussed in comparison with those of cast alloys. Furthermore, this review also covers research carried out in the field of the degradable coatings on magnesium alloys for biomedical applications. Calcium phosphate and biodegradable polymer coatings are discussed based on different preparation techniques used. We also compare the effect of different coatings on the corrosion behaviors of magnesium alloys substrate.

  18. Influence of silica nanospheres on corrosion behavior of magnesium matrix syntactic foam

    NASA Astrophysics Data System (ADS)

    Qureshi, W.; Kannan, S.; Vincent, S.; Eddine, N. N.; Muhammed, A.; Gupta, M.; Karthikeyan, R.; Badari, V.

    2018-04-01

    Over the years, the development of Magnesium alloys as biodegradable implants has seen significant advancements. Magnesium based materials tend to provide numerous advantages in the field of biomedical implants over existing materials such as titanium or stainless steel. The present research focuses on corrosive behavior of Magnesium reinforced with different volume percentages of Hollow Silica Nano Spheres (HSNS). These behaviors were tested in two different simulated body fluids (SBF) namely, Hank’s Buffered Saline Solution (HBSS) and Phosphate Buffered Solution (PBS). This corrosion study was done using the method of electrochemical polarization with a three-electrode configuration. Comparative studies were established by testing pure Mg which provided critical information on the effects of the reinforcing material. The HSNS reinforced Mg displayed desirable characteristics after corrosion experiments; increased corrosion resistance was witnessed with higher volume percentage of HSNS.

  19. 48 CFR 923.570-2 - Solicitation provision and contract clause.

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ... contract clause. 923.570-2 Section 923.570-2 Federal Acquisition Regulations System DEPARTMENT OF ENERGY SOCIOECONOMIC PROGRAMS ENVIRONMENT, ENERGY AND WATER EFFICIENCY, RENEWABLE ENERGY TECHNOLOGIES, OCCUPATIONAL SAFETY, AND DRUG-FREE WORKPLACE Drug-Free Workplace 923.570-2 Solicitation provision and contract clause...

  20. 48 CFR 923.570-2 - Solicitation provision and contract clause.

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ... contract clause. 923.570-2 Section 923.570-2 Federal Acquisition Regulations System DEPARTMENT OF ENERGY SOCIOECONOMIC PROGRAMS ENVIRONMENT, ENERGY AND WATER EFFICIENCY, RENEWABLE ENERGY TECHNOLOGIES, OCCUPATIONAL SAFETY, AND DRUG-FREE WORKPLACE Drug-Free Workplace 923.570-2 Solicitation provision and contract clause...

  1. 48 CFR 923.570-2 - Solicitation provision and contract clause.

    Code of Federal Regulations, 2012 CFR

    2012-10-01

    ... contract clause. 923.570-2 Section 923.570-2 Federal Acquisition Regulations System DEPARTMENT OF ENERGY SOCIOECONOMIC PROGRAMS ENVIRONMENT, ENERGY AND WATER EFFICIENCY, RENEWABLE ENERGY TECHNOLOGIES, OCCUPATIONAL SAFETY, AND DRUG-FREE WORKPLACE Drug-Free Workplace 923.570-2 Solicitation provision and contract clause...

  2. 48 CFR 923.570-2 - Solicitation provision and contract clause.

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ... contract clause. 923.570-2 Section 923.570-2 Federal Acquisition Regulations System DEPARTMENT OF ENERGY SOCIOECONOMIC PROGRAMS ENVIRONMENT, ENERGY AND WATER EFFICIENCY, RENEWABLE ENERGY TECHNOLOGIES, OCCUPATIONAL SAFETY, AND DRUG-FREE WORKPLACE Drug-Free Workplace 923.570-2 Solicitation provision and contract clause...

  3. 24 CFR 570.608 - Lead-based paint.

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ... 24 Housing and Urban Development 3 2011-04-01 2010-04-01 true Lead-based paint. 570.608 Section... DEVELOPMENT COMMUNITY FACILITIES COMMUNITY DEVELOPMENT BLOCK GRANTS Other Program Requirements § 570.608 Lead-based paint. The Lead-Based Paint Poisoning Prevention Act (42 U.S.C. 4821-4846), the Residential Lead...

  4. 24 CFR 570.608 - Lead-based paint.

    Code of Federal Regulations, 2012 CFR

    2012-04-01

    ... 24 Housing and Urban Development 3 2012-04-01 2012-04-01 false Lead-based paint. 570.608 Section... DEVELOPMENT COMMUNITY FACILITIES COMMUNITY DEVELOPMENT BLOCK GRANTS Other Program Requirements § 570.608 Lead-based paint. The Lead-Based Paint Poisoning Prevention Act (42 U.S.C. 4821-4846), the Residential Lead...

  5. 24 CFR 570.608 - Lead-based paint.

    Code of Federal Regulations, 2013 CFR

    2013-04-01

    ... 24 Housing and Urban Development 3 2013-04-01 2013-04-01 false Lead-based paint. 570.608 Section... DEVELOPMENT COMMUNITY FACILITIES COMMUNITY DEVELOPMENT BLOCK GRANTS Other Program Requirements § 570.608 Lead-based paint. The Lead-Based Paint Poisoning Prevention Act (42 U.S.C. 4821-4846), the Residential Lead...

  6. 24 CFR 570.608 - Lead-based paint.

    Code of Federal Regulations, 2014 CFR

    2014-04-01

    ... 24 Housing and Urban Development 3 2014-04-01 2013-04-01 true Lead-based paint. 570.608 Section... DEVELOPMENT COMMUNITY FACILITIES COMMUNITY DEVELOPMENT BLOCK GRANTS Other Program Requirements § 570.608 Lead-based paint. The Lead-Based Paint Poisoning Prevention Act (42 U.S.C. 4821-4846), the Residential Lead...

  7. 24 CFR 570.608 - Lead-based paint.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ... 24 Housing and Urban Development 3 2010-04-01 2010-04-01 false Lead-based paint. 570.608 Section... DEVELOPMENT COMMUNITY FACILITIES COMMUNITY DEVELOPMENT BLOCK GRANTS Other Program Requirements § 570.608 Lead-based paint. The Lead-Based Paint Poisoning Prevention Act (42 U.S.C. 4821-4846), the Residential Lead...

  8. A SEARCH FOR MAGNESIUM IN EUROPA'S ATMOSPHERE

    DOE Office of Scientific and Technical Information (OSTI.GOV)

    Hoerst, S. M.; Brown, M. E., E-mail: sarah.horst@colorado.edu

    Europa's tenuous atmosphere results from sputtering of the surface. The trace element composition of its atmosphere is therefore related to the composition of Europa's surface. Magnesium salts are often invoked to explain Galileo Near Infrared Mapping Spectrometer spectra of Europa's surface, thus magnesium may be present in Europa's atmosphere. We have searched for magnesium emission in the Hubble Space Telescope Faint Object Spectrograph archival spectra of Europa's atmosphere. Magnesium was not detected and we calculate an upper limit on the magnesium column abundance. This upper limit indicates that either Europa's surface is depleted in magnesium relative to sodium and potassium,more » or magnesium is not sputtered as efficiently resulting in a relative depletion in its atmosphere.« less

  9. 48 CFR 1436.570 - Prohibition against use of lead-based paint.

    Code of Federal Regulations, 2012 CFR

    2012-10-01

    ... lead-based paint. 1436.570 Section 1436.570 Federal Acquisition Regulations System DEPARTMENT OF THE... 1436.570 Prohibition against use of lead-based paint. (a) Definitions. As used in this section... of Lead-Based Paint, in solicitations and contracts when construction of residential structures or...

  10. 48 CFR 1436.570 - Prohibition against use of lead-based paint.

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ... lead-based paint. 1436.570 Section 1436.570 Federal Acquisition Regulations System DEPARTMENT OF THE... 1436.570 Prohibition against use of lead-based paint. (a) Definitions. As used in this section... of Lead-Based Paint, in solicitations and contracts when construction of residential structures or...

  11. 48 CFR 1436.570 - Prohibition against use of lead-based paint.

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ... lead-based paint. 1436.570 Section 1436.570 Federal Acquisition Regulations System DEPARTMENT OF THE... 1436.570 Prohibition against use of lead-based paint. (a) Definitions. As used in this section... of Lead-Based Paint, in solicitations and contracts when construction of residential structures or...

  12. 48 CFR 1436.570 - Prohibition against use of lead-based paint.

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ... lead-based paint. 1436.570 Section 1436.570 Federal Acquisition Regulations System DEPARTMENT OF THE... 1436.570 Prohibition against use of lead-based paint. (a) Definitions. As used in this section... of Lead-Based Paint, in solicitations and contracts when construction of residential structures or...

  13. 24 CFR 570.610 - Uniform administrative requirements and cost principles.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ... 24 Housing and Urban Development 3 2010-04-01 2010-04-01 false Uniform administrative requirements and cost principles. 570.610 Section 570.610 Housing and Urban Development Regulations Relating to... GRANTS Other Program Requirements § 570.610 Uniform administrative requirements and cost principles. The...

  14. 28 CFR 570.42 - Non-medical escorted trips.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... 28 Judicial Administration 2 2013-07-01 2013-07-01 false Non-medical escorted trips. 570.42... RELEASE COMMUNITY PROGRAMS Escorted Trips § 570.42 Non-medical escorted trips. (a) Non-medical escorted trips allow an inmate to leave the institution under staff escort for approved, non-medical reasons...

  15. Biocompatibility and Biocorrosion of Hydroxyapatite-Coated Magnesium Plate: Animal Experiment.

    PubMed

    Lim, Ho-Kyung; Byun, Soo-Hwan; Woo, Jae-Man; Kim, Sae-Mi; Lee, Sung-Mi; Kim, Bong-Ju; Kim, Hyoun-Ee; Lee, Jung-Woo; Kim, Soung-Min; Lee, Jong-Ho

    2017-09-30

    Magnesium (Mg) has the advantage of being resorbed in vivo, but its resorption rate is difficult to control. With uncontrolled resorption, Magnesium as a bone fixation material has minimal clinical value. During resorption not only is the strength rapidly weakened, but rapid formation of metabolite also occurs. In order to overcome these disadvantages, hydroxyapatite (HA) surface coating of pure magnesium plate was attempted in this study. Magnesium plates were inserted above the frontal bone of Sprague-Dawley rats in both the control group (Bare-Mg group) and the experimental group (HA-Mg group). The presence of inflammation, infection, hydrogen gas formation, wound dehiscence, and/or plate exposure was observed, blood tests were performed, and the resorption rate and tensile strength of the retrieved metal plates were measured. The HA-Mg group showed no gas formation or plate exposure until week 12. However, the Bare-Mg group showed consistent gas formation and plate exposure beginning in week 2. WBC (White Blood Cell), BUN (Blood Urea Nitrogen), Creatinine, and serum magnesium concentration levels were within normal range in both groups. AST (Aspartate Aminotransferase) and ALT (Alanine Aminotransferase) values, however, were above normal range in some animals of both groups. The HA-Mg group showed statistically significant advantage in resistance to degradation compared to the Bare-Mg group in weeks 2, 4, 6, 8, and 12. Degradation of HA-Mg plates proceeded after week 12. Coating magnesium plates with hydroxyapatite may be a viable method to maintain their strength long enough to allow bony healing and to control the resorption rate during the initial period.

  16. Metabolomic and proteomic analysis of a clonal insulin-producing beta-cell line (INS-1 832/13).

    PubMed

    Fernandez, Céline; Fransson, Ulrika; Hallgard, Elna; Spégel, Peter; Holm, Cecilia; Krogh, Morten; Wårell, Kristofer; James, Peter; Mulder, Hindrik

    2008-01-01

    Metabolites generated from fuel metabolism in pancreatic beta-cells control exocytosis of insulin, a process which fails in type 2 diabetes. To identify and quantify these metabolites, global and unbiased analysis of cellular metabolism is required. To this end, polar metabolites, extracted from the clonal 832/13 beta-cell line cultured at 2.8 and 16.7 mM glucose for 48 h, were derivatized followed by identification and quantification, using gas chromatography (GC) and mass spectrometry (MS). After culture at 16.7 mM glucose for 48 h, 832/13 beta-cells exhibited a phenotype reminiscent of glucotoxicity with decreased content and secretion of insulin. The metabolomic analysis revealed alterations in the levels of 7 metabolites derived from glycolysis, the TCA cycle and pentose phosphate shunt, and 4 amino acids. Principal component analysis of the metabolite data showed two clusters, corresponding to the cells cultured at 2.8 and 16.7 mM glucose, respectively. Concurrent changes in protein expression were analyzed by 2-D gel electrophoresis followed by LC-MS/MS. The identities of 86 spots corresponding to 75 unique proteins that were significantly different in 832/13 beta-cells cultured at 16.7 mM glucose were established. Only 5 of these were found to be metabolic enzymes that could be involved in the metabolomic alterations observed. Anticipated changes in metabolite levels in cells exposed to increased glucose were observed, while changes in enzyme levels were much less profound. This suggests that substrate availability, allosteric regulation, and/or post-translational modifications are more important determinants of metabolite levels than enzyme expression at the protein level.

  17. 48 CFR 923.570-2 - Solicitation provision and contract clause.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... contract clause. 923.570-2 Section 923.570-2 Federal Acquisition Regulations System DEPARTMENT OF ENERGY SOCIOECONOMIC PROGRAMS ENVIRONMENT, CONSERVATION, OCCUPATIONAL SAFETY, AND DRUG-FREE WORKPLACE Drug-Free... and operated under the authority of the Atomic Energy Act of 1954, as amended, as specified in 923.570...

  18. 24 CFR 570.492 - State's reviews and audits.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ... 24 Housing and Urban Development 3 2010-04-01 2010-04-01 false State's reviews and audits. 570.492... (Continued) OFFICE OF ASSISTANT SECRETARY FOR COMMUNITY PLANNING AND DEVELOPMENT, DEPARTMENT OF HOUSING AND... Block Grant Program § 570.492 State's reviews and audits. (a) The state shall make reviews and audits...

  19. Magnesium Gluconate

    MedlinePlus

    Magnesium gluconate is used to treat low blood magnesium. Low blood magnesium is caused by gastrointestinal disorders, prolonged vomiting or ... disease, or certain other conditions. Certain drugs lower magnesium levels as well.This medication is sometimes prescribed ...

  20. 24 CFR 570.495 - Reviews and audits response.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ... 24 Housing and Urban Development 3 2010-04-01 2010-04-01 false Reviews and audits response. 570... Development Block Grant Program § 570.495 Reviews and audits response. (a) If HUD's review and audit under... information or assurances will be required before acceptance of one or more of the certifications required for...