867 research outputs found

    Practical experience of using ultrasound flowmeters at the measurement associated petroleum gas

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    © Published under licence by IOP Publishing Ltd. The results of field tests of several ultrasound flowmeters at existing oil and gas extraction objects are given in the paper. Measured medium - associated petroleum gas. This work aims to create a unified system for measuring the amount and parameters of APG in order to reduce operating costs

    Assessing Health Needs of the Burlington Probation and Parole Population

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    The Burlington Probation and Parole population confronts numerous social, economic, and healthcare challenges upon their return to the community. While health and healthcare issues of inmates have been studied extensively, the health status and medical issues of the reentry offenders, particularly in rural areas have not been previously assessed. Data about health risks, major medical issues, and lifestyle choices among offenders on parole in the rural setting may prove helpful in the identification of preventative measures and development of strategies to promote positive health behaviors among the target population. The aim of this study is to evaluate the health risks among offenders on parole in the Burlington area and guide recommendations towards improving their health outcomes through community and educational initiatives. We also sought to gain a better understanding of the barriers within the rural setting that prevent positive health behaviors among the parolees upon their reintegration into the communityhttps://scholarworks.uvm.edu/comphp_gallery/1068/thumbnail.jp

    Suppression of electron spin relaxation in Mn-doped GaAs

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    We report a surprisingly long spin relaxation time of electrons in Mn-doped p-GaAs. The spin relaxation time scales with the optical pumping and increases from 12 ns in the dark to 160 ns upon saturation. This behavior is associated with the difference in spin relaxation rates of electrons precessing in the fluctuating fields of ionized or neutral Mn acceptors, respectively. For the latter the antiferromagnetic exchange interaction between a Mn ion and a bound hole results in a partial compensation of these fluctuating fields, leading to the enhanced spin memory.Comment: 4 pages, 4 figure

    Anisotropic Magnetoconductance in Quench-Condensed Ultrathin Beryllium Films

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    Near the superconductor-insulator (S-I) transition, quench-condensed ultrathin Be films show a large magnetoconductance which is highly anisotropic in the direction of the applied field. Film conductance can drop as much as seven orders of magnitude in a weak perpendicular field (< 1 T), but is insensitive to a parallel field in the same field range. We believe that this negative magnetoconductance is due to the field de-phasing of the superconducting pair wavefunction. This idea enables us to extract the finite superconducting phase coherence length in nearly superconducting films. Our data indicate that this local phase coherence persists even in highly insulating films in the vicinity of the S-I transition.Comment: 4 pages, 4 figure RevTex, Typos Correcte

    A proposed reaction channel for the synthesis of the superheavy nucleus Z = 109

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    We apply a statistical-evaporation model (HIVAP) to calculate the cross sections of superheavy elements, mainly about actinide targets and compare with some available experimental data. A reaction channel 30^{30}Si + 243^{243}Am is proposed for the synthesis of the element Z = 109 and the cross section is estimated.Comment: 4 pages, 2 figures, 2 tables; two typos are corrected in Ref. [12] and [19
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