National Library of Energy BETA

Sample records for male female current

  1. Male Female

    National Nuclear Security Administration (NNSA)

    2010 CLF % Male Female Hispanic or Latino 5.17% 4.79% White 38.33% 34.03% Black or African American 5.49% 6.53% Asian 1.97% 1.93% American Indian or Alaska Native 0.55% 0.53%...

  2. Interventional Radiology of Male Varicocele: Current Status

    SciTech Connect (OSTI)

    Iaccarino, Vittorio Venetucci, Pietro

    2012-12-15

    Varicocele is a fairly common condition in male individuals. Although a minor disease, it may cause infertility and testicular pain. Consequently, it has high health and social impact. Here we review the current status of interventional radiology of male varicocele. We describe the radiological anatomy of gonadal veins and the clinical aspects of male varicocele, particularly the physical examination, which includes a new clinical and ultrasound Doppler maneuver. The surgical and radiological treatment options are also described with the focus on retrograde and antegrade sclerotherapy, together with our long experience with these procedures. Last, we compare the outcomes, recurrence and persistence rates, complications, procedure time and cost-effectiveness of each method. It clearly emerges from this analysis that there is a need for randomized multicentre trials designed to compare the various surgical and percutaneous techniques, all of which are aimed at occlusion of the anterior pampiniform plexus.

  3. Proportions of spontaneous mutations in males and females with ornithine transcarbamylase deficiency

    SciTech Connect (OSTI)

    Tuchman, M.; Briede, T.; Matsuda, I.

    1995-01-02

    We used specific mutation analysis to estimate the proportions of males and females with ornithine transcarbamylase (OTC) deficiency whose mutations occurred in the germ cells of one of the parents. The mutations were identified in the probands, and subsequently carrier testing was performed on their mothers and some of the grandmothers. Of 28 OTC deficient male,s only 2 (7%) had sporadic mutations (95% CI, 0.6-18.5%), whereas of 15 OTC deficient females, 12 (80%) had sporadic mutations (95% CI, 63-99%) (P < 0.001). Based on these results we estimated the male/female mutation rate ratio ({nu}/{mu}) in the OTC gene to be approximately 52. Assuming a fitness for males with OTC deficiency of 0 and the proportion of new female mutants at 0.80, the estimated fitness of heterozygous females is 0.4. Because of the difference in mutation rates between male and female germ cells, we suggest that 9/10 or higher, rather than the conventional 2/3 proportion, be applied when estimating prior risk of carrier status in a mother of one affected male. The prior risk of a mother of an affected female is much lower, approximately 2/10. 23 refs., 1 tab.

  4. Evaluation of overall setup accuracy and adequate setup margins in pelvic image-guided radiotherapy: Comparison of the male and female patients

    SciTech Connect (OSTI)

    Laaksomaa, Marko; Kapanen, Mika; Tulijoki, Tapio; Peltola, Seppo; Hydynmaa, Simo; Kellokumpu-Lehtinen, Pirkko-Liisa

    2014-04-01

    We evaluated adequate setup margins for the radiotherapy (RT) of pelvic tumors based on overall position errors of bony landmarks. We also estimated the difference in setup accuracy between the male and female patients. Finally, we compared the patient rotation for 2 immobilization devices. The study cohort included consecutive 64 male and 64 female patients. Altogether, 1794 orthogonal setup images were analyzed. Observer-related deviation in image matching and the effect of patient rotation were explicitly determined. Overall systematic and random errors were calculated in 3 orthogonal directions. Anisotropic setup margins were evaluated based on residual errors after weekly image guidance. The van Herk formula was used to calculate the margins. Overall, 100 patients were immobilized with a house-made device. The patient rotation was compared against 28 patients immobilized with CIVCO's Kneefix and Feetfix. We found that the usually applied isotropic setup margin of 8 mm covered all the uncertainties related to patient setup for most RT treatments of the pelvis. However, margins of even 10.3 mm were needed for the female patients with very large pelvic target volumes centered either in the symphysis or in the sacrum containing both of these structures. This was because the effect of rotation (p ? 0.02) and the observer variation in image matching (p ? 0.04) were significantly larger for the female patients than for the male patients. Even with daily image guidance, the required margins remained larger for the women. Patient rotations were largest about the lateral axes. The difference between the required margins was only 1 mm for the 2 immobilization devices. The largest component of overall systematic position error came from patient rotation. This emphasizes the need for rotation correction. Overall, larger position errors and setup margins were observed for the female patients with pelvic cancer than for the male patients.

  5. TOTAL WORKFORCE Males

    National Nuclear Security Administration (NNSA)

    33 Females Male Female Male Female Male Female Male Female Male Female 1 1 1 7 3 2 7 5 55 18 PAY PLAN SES 3 EJ/EK 5 EN 05 13 EN 04 11 EN 03 1 NN (Engineering) 43 NQ (Prof/Tech/Admin) 23 NU (Tech/Admin Support) 1 * Reorganization, includes NA-SH and NA-00 employees. White 33.0% Associate Administrator for Infrastructure & Environment (NA-50) As of March 21, 2015 DIVERSITY 100 67 67.0% American Indian Alaska Native African American Asian American Pacific Islander Hispanic SES EJ/EK EN 05 EN 04

  6. Toxicokinetics of α-thujone following intravenous and gavage administration of α-thujone or α- and β-thujone mixture in male and female F344/N rats and B6C3F1 mice

    SciTech Connect (OSTI)

    Waidyanatha, Suramya; Johnson, Jerry D.; Hong, S. Peter; Robinson, Veronica Godfrey; Gibbs, Seth; Graves, Steven W.; Hooth, Michelle J.; Smith, Cynthia S.

    2013-09-01

    Plants containing thujone have widespread use and hence have significant human exposure. α-Thujone caused seizures in rodents following gavage administration. We investigated the toxicokinetics of α-thujone in male and female F344/N rats and B6C3F1 mice following intravenous and gavage administration of α-thujone or a mixture of α- and β-thujone (which will be referred to as α,β-thujone). Absorption of α-thujone following gavage administration was rapid without any dose-, species-, sex- or test article-related effect. Absolute bioavailability of α-thujone following administration of α-thujone or α,β-thujone was generally higher in rats than in mice. In rats, females had higher bioavailability than males following administration of either test article although a sex difference was not observed in mice. C{sub max} and AUC{sub ∞} increased greater than proportional to the dose in female rats following administration of α-thujone and in male and female mice following administration of α,β-thujone suggesting possible saturation of elimination kinetics with increasing dose. Dose-adjusted AUC{sub ∞} for male and female rats was 5- to 15-fold and 3- to 24-fold higher than mice counterparts following administration of α-thujone and α,β-thujone, respectively (p-value < 0.0001 for all comparisons). Following both intravenous and gavage administration, α-thujone was distributed to the brains of rats and mice with females, in general, having higher brain:plasma ratios than males. These data are in support of the observed toxicity of α-thujone and α,β-thujone where females were more sensitive than males of both species to α-thujone-induced neurotoxicity. In general there was no difference in toxicokinetics between test articles when normalized to α-thujone concentration. - Highlights: • Absorption of α-thujone following gavage administration was rapid in rats and mice. • Rats undergo higher exposure to α-thujone than mice. • α-Thujone brain:plasma ratios were greater than 1 in both rats and mice. • Brain:plasma ratio in females was higher than in males. • These data are in support of the observed neurotoxicity of α-thujone.

  7. TOTAL WORKFORCE Males

    National Nuclear Security Administration (NNSA)

    0 Females Male Female Male Female Male Female Male Female Male Female 2 1 4 3 20 2 5 1 24 13 PAY PLAN SES 1 EJ/EK 2 EN 05 2 EN 04 21 EN 03 7 NN (Engineering) 15 NQ (Prof/Tech/Admin) 26 NU (Tech/Admin Support) 1 Livermore Field Office As of March 21, 2015 DIVERSITY 75 55 73.3% American Indian Alaska Native African American Asian American Pacific Islander Hispanic White 26.7% SES EJ/EK EN 05 EN 04 EN 03 NN NQ NU 1.3% 2.7% 2.7% 28.0% 9.3% 20.0% 34.7% 1.3% 2.7% 1.3% 5.3% 4.0% 26.7% 2.7% 6.7% 1.3%

  8. TOTAL WORKFORCE Males

    National Nuclear Security Administration (NNSA)

    5 Females Male Female Male Female Male Female Male Female Male Female 2 3 0 0 3 0 9 10 35 12 PAY PLAN SES 2 EJ/EK 8 EN 05 1 EN 04 20 NN (Engineering) 15 NQ (Prof/Tech/Admin) 25 NU (Tech/Admin Support) 3 Los Alamos Field Office As of March 21, 2015 DIVERSITY 74 49 66.2% American Indian Alaska Native African American Asian American Pacific Islander Hispanic White 33.8% SES EJ/EK EN 05 EN 04 NN NQ NU 2.7% 10.8% 1.4% 27.0% 20.3% 33.8% 4.1% 2.7% 4.1% 0.0% 0.0% 4.1% 0.0% 12.2% 13.5% 47.3% 16.2%

  9. TOTAL WORKFORCE Males

    National Nuclear Security Administration (NNSA)

    3 Females Male Female Male Female Male Female Male Female Male Female 0 1 1 4 1 0 0 4 10 4 PAY PLAN SES 7 EX 2 EJ/EK 1 EN 05 1 EN 04 2 EN 00 1 NQ (Prof/Tech/Admin) 10 NU (Tech/Admin Support) 1 National Nuclear Security Administration (NA-1) As of March 21, 2015 DIVERSITY 25 12 48.0% American Indian Alaska Native African American Asian American Pacific Islander Hispanic White 52.0% SES EX EJ/EK EN 05 EN 04 EN 00 NQ NU 28.0% 8.0% 4.0% 4.0% 8.0% 4.0% 40.0% 4.0% 0.0% 4.0% 4.0% 16.0% 4.0% 0.0% 0.0%

  10. TOTAL WORKFORCE Males

    National Nuclear Security Administration (NNSA)

    9 Females Male Female Male Female Male Female Male Female Male Female 1 1 10 11 4 3 14 8 78 26 PAY PLAN SES 10 EX 1 EJ/EK 2 EN 05 8 EN 04 15 EN 03 6 NN (Engineering) 63 NQ (Prof/Tech/Admin) 51 White 31.4% Deputy Administrator for Defense Programs (NA-10) As of March 21, 2015 DIVERSITY 156 107 68.6% American Indian Alaska Native African American Asian American Pacific Islander Hispanic SES EX EJ/EK EN 05 EN 04 EN 03 NN NQ 6.4% 0.6% 1.3% 5.1% 9.6% 3.8% 40.4% 32.7% 0.6% 0.6% 6.4% 7.1% 2.6% 1.9%

  11. TOTAL WORKFORCE Males

    National Nuclear Security Administration (NNSA)

    5 Females Male Female Male Female Male Female Male Female Male Female 14 2 18 1 10 2 71 21 400 19 PAY PLAN SES 2 EJ/EK 2 EN 04 1 NN (Engineering) 11 NQ (Prof/Tech/Admin) 215 NU (Tech/Admin Support) 2 NV (Nuc Mat Courier) 325 DIVERSITY 558 513 91.9% American Indian Alaska Native African American Asian American Pacific Islander Hispanic White 8.1% Assistant Deputy Administrator for Secure Transportation (NA-15) As of March 21, 2015 SES EJ/EK EN 04 NN NQ NU NV 0.4% 0.4% 0.2% 2.0% 38.5% 0.4% 58.2%

  12. TOTAL WORKFORCE Males

    National Nuclear Security Administration (NNSA)

    91 Females Male Female Male Female Male Female Male Female Male Female 1 0 3 17 3 6 8 10 70 58 PAY PLAN SES 12 EX 1 EJ/EK 3 EN 05 1 EN 04 2 EN 03 1 EN 00 3 NN (Engineering) 27 NQ (Prof/Tech/Admin) 123 NU (Tech/Admin Support) 2 GS 15 1 Deputy Administrator for Defense Nuclear NonProliferation (NA-20) As of March 21, 2015 DIVERSITY 176 85 48.3% American Indian Alaska Native African American Asian American Pacific Islander Hispanic White 51.7% SES EX EJ/EK EN 05 EN 04 EN 03 EN 00 NN NQ NU GS 15

  13. TOTAL WORKFORCE Males

    National Nuclear Security Administration (NNSA)

    0 Females Male Female Male Female Male Female Male Female Male Female 0 1 4 8 2 0 1 0 138 61 PAY PLAN SES 25 EJ/EK 2 EN 05 9 NN (Engineering) 72 NQ (Prof/Tech/Admin) 91 NU (Tech/Admin Support) 16 * Includes NRLFO employees. Deputy Administrator for Naval Reactors (NA-30) As of March 21, 2015 DIVERSITY 215 145 67.4% American Indian Alaska Native African American Asian American Pacific Islander Hispanic White 32.6% SES EJ/EK EN 05 NN NQ NU 11.6% 0.9% 4.2% 33.5% 42.3% 7.4% 0.0% 0.5% 1.9% 3.7% 0.9%

  14. TOTAL WORKFORCE Males

    National Nuclear Security Administration (NNSA)

    4 Females Male Female Male Female Male Female Male Female Male Female 0 0 10 8 2 1 4 5 39 10 PAY PLAN SES 2 EJ/EK 3 EN 04 1 NN (Engineering) 20 NQ (Prof/Tech/Admin) 53 Associate Administrator for Emergency Operations (NA-40) As of March 21, 2015 DIVERSITY 79 55 69.6% American Indian Alaska Native African American Asian American Pacific Islander Hispanic White 30.4% SES EJ/EK EN 04 NN NQ 2.5% 3.8% 1.3% 25.3% 67.1% 0.0% 0.0% 12.7% 10.1% 2.5% 1.3% 5.1% 6.3% 49.4% 12.7% SUPERVISORS DISABILITY 7

  15. TOTAL WORKFORCE Males

    National Nuclear Security Administration (NNSA)

    Females Male Female Male Female Male Female Male Female Male Female 0 0 0 0 1 0 0 0 11 2 PAY PLAN SES 2 EJ/EK 1 EN 04 1 EN 00 1 NN (Engineering) 5 NQ (Prof/Tech/Admin) 4 DIVERSITY 14 12 85.7% American Indian Alaska Native African American Asian American Pacific Islander Hispanic White 14.3% Associate Administrator & Deputy Under Secretary for Counterterrorism & Counterproliferation (NA-80) As of March 21, 2015 SES EJ/EK EN 04 EN 00 NN NQ 14.3% 7.1% 7.1% 7.1% 35.7% 28.6% 0.0% 0.0% 0.0%

  16. TOTAL WORKFORCE Males

    National Nuclear Security Administration (NNSA)

    2 Females Male Female Male Female Male Female Male Female Male Female 2 1 4 9 4 0 20 25 57 37 PAY PLAN SES 7 EJ/EK 3 EN 04 11 EN 00 3 NN (Engineering) 30 NQ (Prof/Tech/Admin) 102 NU (Tech/Admin Support) 3 Associate Administrator for Acquistion & Project Management (NA-APM) As of March 21, 2015 DIVERSITY 159 87 54.7% American Indian Alaska Native African American Asian American Pacific Islander Hispanic White 45.3% SES EJ/EK EN 04 EN 00 NN NQ NU 4.4% 1.9% 6.9% 1.9% 18.9% 64.2% 1.9% 1.3% 0.6%

  17. TOTAL WORKFORCE Males

    National Nuclear Security Administration (NNSA)

    Females Male Female Male Female Male Female Male Female Male Female 0 0 3 3 0 1 0 1 4 2 PAY PLAN SES 1 NQ (Prof/Tech/Admin) 8 GS 15 2 GS 14 1 GS 13 1 GS 10 1 Associate Administrator of External Affairs (NA-EA) As of March 21, 2015 DIVERSITY 14 7 50.0% American Indian Alaska Native African American Asian American Pacific Islander Hispanic White 50.0% SES NQ GS 15 GS 14 GS 13 GS 10 7.1% 57.1% 14.3% 7.1% 7.1% 7.1% 0.0% 0.0% 21.4% 21.4% 0.0% 7.1% 0.0% 7.1% 28.6% 14.3% SUPERVISORS DISABILITY 4

  18. TOTAL WORKFORCE Males

    National Nuclear Security Administration (NNSA)

    9 Females Male Female Male Female Male Female Male Female Male Female 0 0 1 2 0 1 4 7 12 9 PAY PLAN SES 2 EJ/EK 1 EN 03 1 NN (Engineering) 1 NQ (Prof/Tech/Admin) 30 NU (Tech/Admin Support) 1 Office of General Counsel (NA-GC) As of March 21, 2015 DIVERSITY 36 17 47.2% American Indian Alaska Native African American Asian American Pacific Islander Hispanic White 52.8% SES EJ/EK EN 03 NN NQ NU 5.6% 2.8% 2.8% 2.8% 83.3% 2.8% 0.0% 0.0% 2.8% 5.6% 0.0% 2.8% 11.1% 19.4% 33.3% 25.0% SUPERVISORS DISABILITY

  19. TOTAL WORKFORCE Males

    National Nuclear Security Administration (NNSA)

    7 Females Male Female Male Female Male Female Male Female Male Female 1 2 2 6 1 0 0 5 9 4 PAY PLAN SES 1 EJ/EK 1 NQ (Prof/Tech/Admin) 27 NU (Tech/Admin Support) 1 Associate Administrator for Information Management & Chief Information Officer (NA-IM) As of March 21, 2015 DIVERSITY 30 13 43.3% American Indian Alaska Native African American Asian American Pacific Islander Hispanic White 56.7% SES EJ/EK NQ NU 3.3% 3.3% 90.0% 3.3% 3.3% 6.7% 6.7% 20.0% 3.3% 0.0% 0.0% 16.7% 30.0% 13.3% SUPERVISORS

  20. TOTAL WORKFORCE Males

    National Nuclear Security Administration (NNSA)

    4 Females Male Female Male Female Male Female Male Female Male Female 2 2 11 31 1 3 18 35 46 63 PAY PLAN SES 9 EJ/EK 1 EN 04 1 NQ (Prof/Tech/Admin) 194 NU (Tech/Admin Support) 7 DIVERSITY 212 78 36.8% American Indian Alaska Native African American Asian American Pacific Islander Hispanic White 63.2% Associate Administrator for Management & Budget (NA-MB) As of March 21, 2015 SES EJ/EK EN 04 NQ NU 4.2% 0.5% 0.5% 91.5% 3.3% 0.9% 0.9% 5.2% 14.6% 0.5% 1.4% 8.5% 16.5% 21.7% 29.7% SUPERVISORS

  1. TOTAL WORKFORCE Males

    National Nuclear Security Administration (NNSA)

    3 Females Male Female Male Female Male Female Male Female Male Female 1 1 2 3 2 2 6 5 44 12 PAY PLAN SES 2 EJ/EK 2 EN 05 1 EN 04 23 NN (Engineering) 25 NQ (Prof/Tech/Admin) 23 NU (Tech/Admin Support) 2 Nevada Field Office As of March 21, 2015 DIVERSITY 78 55 70.5% American Indian Alaska Native African American Asian American Pacific Islander Hispanic White 29.5% SES EJ/EK EN 05 EN 04 NN NQ NU 2.6% 2.6% 1.3% 29.5% 32.1% 29.5% 2.6% 1.3% 1.3% 2.6% 3.8% 2.6% 2.6% 7.7% 6.4% 56.4% 15.4% SUPERVISORS

  2. TOTAL WORKFORCE Males

    National Nuclear Security Administration (NNSA)

    2 Females Male Female Male Female Male Female Male Female Male Female 0 1 2 3 0 0 0 0 22 8 PAY PLAN SES 1 EN 05 1 EN 04 9 EN 03 1 NN (Engineering) 8 NQ (Prof/Tech/Admin) 16 White 33.3% Kansas City Field Office As of September 5, 2015 DIVERSITY 36 24 66.7% American Indian Alaska Native African American Asian American Pacific Islander Hispanic SES EN 05 EN 04 EN 03 NN NQ 2.8% 2.8% 25.0% 2.8% 22.2% 44.4% 0.0% 2.8% 5.6% 8.3% 0.0% 0.0% 0.0% 0.0% 61.1% 22.2% Prepared by NNSA Office of Civil Rights

  3. TOTAL WORKFORCE Males

    National Nuclear Security Administration (NNSA)

    1 Females Male Female Male Female Male Female Male Female Male Female 2 1 4 4 20 2 5 1 24 13 PAY PLAN SES 1 EJ/EK 2 EN 05 2 EN 04 21 EN 03 7 NN (Engineering) 15 NQ (Prof/Tech/Admin) 27 NU (Tech/Admin Support) 1 DIVERSITY 76 55 72.4% American Indian Alaska Native African American Asian American Pacific Islander Hispanic White 27.6% Livermore Field Office As of September 5, 2015 SES EJ/EK EN 05 EN 04 EN 03 NN NQ NU 1.3% 2.6% 2.6% 27.6% 9.2% 19.7% 35.5% 1.3% 2.6% 1.3% 5.3% 5.3% 26.3% 2.6% 6.6% 1.3%

  4. TOTAL WORKFORCE Males

    National Nuclear Security Administration (NNSA)

    5 Females Male Female Male Female Male Female Male Female Male Female 2 3 1 0 2 0 10 10 35 12 PAY PLAN SES 2 EJ/EK 7 EN 05 1 EN 04 22 EN 03 1 EN 00 2 NN (Engineering) 12 NQ (Prof/Tech/Admin) 25 NU (Tech/Admin Support) 3 DIVERSITY 75 50 66.7% American Indian Alaska Native African American Asian American Pacific Islander Hispanic White 33.3% Los Alamos Field Office As of September 5, 2015 SES EJ/EK EN 05 EN 04 EN 03 EN 00 NN NQ NU 2.7% 9.3% 1.3% 29.3% 1.3% 2.7% 16.0% 33.3% 4.0% 2.7% 4.0% 1.3% 0.0%

  5. TOTAL WORKFORCE Males

    National Nuclear Security Administration (NNSA)

    77 Females Male Female Male Female Male Female Male Female Male Female 2 1 5 12 4 0 20 27 54 37 PAY PLAN SES 4 EJ/EK 2 EN 04 11 EN 03 3 EN 00 6 NN (Engineering) 29 NQ (Prof/Tech/Admin) 104 NU (Tech/Admin Support) 3 Associate Administrator for Acquistion & Project Management (NA-APM) As of September 5, 2015 DIVERSITY 162 85 52.5% American Indian Alaska Native African American Asian American Pacific Islander Hispanic White 47.5% SES EJ/EK EN 04 EN 03 EN 00 NN NQ NU 2.5% 1.2% 6.8% 1.9% 3.7%

  6. TOTAL WORKFORCE Males

    National Nuclear Security Administration (NNSA)

    4 Females Male Female Male Female Male Female Male Female Male Female 0 1 2 4 1 1 1 4 10 4 PAY PLAN SES 6 EX 2 EN 05 1 EN 04 1 EN 00 1 NN (Engineering) 1 NQ (Prof/Tech/Admin) 15 NU (Tech/Admin Support) 1 Immediate Office of the Administrator (NA-1) As of September 5, 2015 DIVERSITY 28 14 50.0% American Indian Alaska Native African American Asian American Pacific Islander Hispanic White 50.0% SES EX EN 05 EN 04 EN 00 NN NQ NU 21.4% 7.1% 3.6% 3.6% 3.6% 3.6% 53.6% 3.6% 0.0% 3.6% 7.1% 14.3% 3.6%

  7. TOTAL WORKFORCE Males

    National Nuclear Security Administration (NNSA)

    1 Females Male Female Male Female Male Female Male Female Male Female 1 1 10 12 4 3 16 8 84 27 PAY PLAN SES 11 EJ/EK 2 EN 05 9 EN 04 15 EN 03 8 EN 00 5 NN (Engineering) 62 NQ (Prof/Tech/Admin) 53 ED 00 1 Deputy Administrator for Defense Programs (NA-10) As of September 5, 2015 DIVERSITY 166 115 69.3% American Indian Alaska Native African American Asian American Pacific Islander Hispanic White 30.7% SES EJ/EK EN 05 EN 04 EN 03 EN 00 NN NQ ED 00 6.6% 1.2% 5.4% 9.0% 4.8% 3.0% 37.3% 31.9% 0.6% 0.6%

  8. TOTAL WORKFORCE Males

    National Nuclear Security Administration (NNSA)

    3 Females Male Female Male Female Male Female Male Female Male Female 13 2 19 1 11 2 71 21 397 17 PAY PLAN SES 1 EJ/EK 2 EN 04 1 NN (Engineering) 11 NQ (Prof/Tech/Admin) 210 NU (Tech/Admin Support) 2 NV (Nuc Mat Courier) 327 White 7.8% Assistant Deputy Administrator for Secure Transportation (NA-15) As of September 5, 2015 DIVERSITY 554 511 92.2% American Indian Alaska Native African American Asian American Pacific Islander Hispanic SES EJ/EK EN 04 NN NQ NU NV 0.2% 0.4% 0.2% 2.0% 37.9% 0.4%

  9. TOTAL WORKFORCE Males

    National Nuclear Security Administration (NNSA)

    92 Females Male Female Male Female Male Female Male Female Male Female 1 0 3 16 4 7 9 10 72 59 PAY PLAN SES 12 EX 1 EJ/EK 3 EN 05 1 EN 04 4 EN 03 7 EN 00 4 NN (Engineering) 28 NQ (Prof/Tech/Admin) 118 NU (Tech/Admin Support) 1 GS 15 1 ED 00 1 DIVERSITY 181 89 49.2% American Indian Alaska Native African American Asian American Pacific Islander Hispanic White 50.8% Deputy Administrator for Defense Nuclear NonProliferation (NA-20) As of September 5, 2015 SES EX EJ/EK EN 05 EN 04 EN 03 EN 00 NN NQ

  10. TOTAL WORKFORCE Males

    National Nuclear Security Administration (NNSA)

    8 Females Male Female Male Female Male Female Male Female Male Female 0 1 4 6 3 0 1 0 81 21 PAY PLAN SES 26 EJ/EK 2 EN 05 11 NN (Engineering) 49 NQ (Prof/Tech/Admin) 25 NU (Tech/Admin Support) 4 DIVERSITY 117 89 76.1% American Indian Alaska Native African American Asian American Pacific Islander Hispanic White 23.9% Deputy Administrator for Naval Reactors (NA-30) As of September 5, 2015 SES EJ/EK EN 05 NN NQ NU 22.2% 1.7% 9.4% 41.9% 21.4% 3.4% 0.0% 0.9% 3.4% 5.1% 2.6% 0.0% 0.9% 0.0% 69.2% 17.9%

  11. TOTAL WORKFORCE Males

    National Nuclear Security Administration (NNSA)

    6 Females Male Female Male Female Male Female Male Female Male Female 0 0 10 9 2 1 4 5 39 11 PAY PLAN SES 2 EJ/EK 3 EN 04 2 NN (Engineering) 18 NQ (Prof/Tech/Admin) 56 DIVERSITY 81 55 67.9% American Indian Alaska Native African American Asian American Pacific Islander Hispanic White 32.1% Associate Administrator for Emergency Operations (NA-40) As of September 5, 2015 SES EJ/EK EN 04 NN NQ 2.5% 3.7% 2.5% 22.2% 69.1% 0.0% 0.0% 12.3% 11.1% 2.5% 1.2% 4.9% 6.2% 48.1% 13.6% Prepared by NNSA Office of

  12. TOTAL WORKFORCE Males

    National Nuclear Security Administration (NNSA)

    4 Females Male Female Male Female Male Female Male Female Male Female 1 1 1 6 3 2 7 5 52 20 PAY PLAN SES 3 EJ/EK 4 EN 05 12 EN 04 9 EN 03 2 EN 00 3 NN (Engineering) 42 NQ (Prof/Tech/Admin) 22 NU (Tech/Admin Support) 1 White 34.7% Associate Administrator for Safety, Infrastructure and Operations (NA-50) As of September 5, 2015 DIVERSITY 98 64 65.3% American Indian Alaska Native African American Asian American Pacific Islander Hispanic SES EJ/EK EN 05 EN 04 EN 03 EN 00 NN NQ NU 3.1% 4.1% 12.2%

  13. TOTAL WORKFORCE Males

    National Nuclear Security Administration (NNSA)

    0 Females Male Female Male Female Male Female Male Female Male Female 0 2 4 6 0 0 7 14 27 18 PAY PLAN SES 3 NN (Engineering) 6 NQ (Prof/Tech/Admin) 66 NU (Tech/Admin Support) 3 DIVERSITY 78 38 48.7% American Indian Alaska Native African American Asian American Pacific Islander Hispanic White 51.3% Associate Administrator for Defense Nuclear Security (NA-70) As of September 5, 2015 SES NN NQ NU 3.8% 7.7% 84.6% 3.8% 0.0% 2.6% 5.1% 7.7% 0.0% 0.0% 9.0% 17.9% 34.6% 23.1% Prepared by NNSA Office of

  14. TOTAL WORKFORCE Males

    National Nuclear Security Administration (NNSA)

    Females Male Female Male Female Male Female Male Female Male Female 0 0 0 0 1 0 0 0 11 3 PAY PLAN SES 2 EJ/EK 1 EN 04 1 EN 03 2 NN (Engineering) 5 NQ (Prof/Tech/Admin) 4 Associate Administrator & Deputy Under Secretary for Counterterrorism & Counterproliferation (NA-80) As of September 5, 2015 DIVERSITY 15 12 80.0% American Indian Alaska Native African American Asian American Pacific Islander Hispanic White 20.0% SES EJ/EK EN 04 EN 03 NN NQ 13.3% 6.7% 6.7% 13.3% 33.3% 26.7% 0.0% 0.0%

  15. TOTAL WORKFORCE Males

    National Nuclear Security Administration (NNSA)

    Females Male Female Male Female Male Female Male Female Male Female 0 0 1 2 0 0 0 1 6 2 PAY PLAN SES 2 EN 03 1 NQ (Prof/Tech/Admin) 7 GS 15 1 GS 14 1 DIVERSITY 12 7 58.3% American Indian Alaska Native African American Asian American Pacific Islander Hispanic White 41.7% Associate Administrator of External Affairs (NA-EA) As of September 5, 2015 SES EN 03 NQ GS 15 GS 14 16.7% 8.3% 58.3% 8.3% 8.3% 0.0% 0.0% 8.3% 16.7% 0.0% 0.0% 0.0% 8.3% 50.0% 16.7% Prepared by NNSA Office of Civil Rights

  16. TOTAL WORKFORCE Males

    National Nuclear Security Administration (NNSA)

    9 Females Male Female Male Female Male Female Male Female Male Female 0 1 1 2 0 1 5 7 11 8 PAY PLAN SES 2 EJ/EK 1 EN 03 1 NN (Engineering) 2 NQ (Prof/Tech/Admin) 29 NU (Tech/Admin Support) 1 DIVERSITY 36 17 47.2% American Indian Alaska Native African American Asian American Pacific Islander Hispanic White 52.8% Office of General Counsel (NA-GC) As of September 5, 2015 SES EJ/EK EN 03 NN NQ NU 5.6% 2.8% 2.8% 5.6% 80.6% 2.8% 0.0% 2.8% 2.8% 5.6% 0.0% 2.8% 13.9% 19.4% 30.6% 22.2% Prepared by NNSA

  17. TOTAL WORKFORCE Males

    National Nuclear Security Administration (NNSA)

    5 Females Male Female Male Female Male Female Male Female Male Female 1 2 2 4 1 0 0 5 10 4 PAY PLAN SES 1 EJ/EK 1 EN 05 1 NQ (Prof/Tech/Admin) 25 NU (Tech/Admin Support) 1 DIVERSITY 29 14 48.3% American Indian Alaska Native African American Asian American Pacific Islander Hispanic White 51.7% Associate Administrator for Information Management & Chief Information Officer (NA-IM) As of September 5, 2015 SES EJ/EK EN 05 NQ NU 3.4% 3.4% 3.4% 86.2% 3.4% 3.4% 6.9% 6.9% 13.8% 3.4% 0.0% 0.0% 17.2%

  18. TOTAL WORKFORCE Males

    National Nuclear Security Administration (NNSA)

    31 Females Male Female Male Female Male Female Male Female Male Female 1 2 11 31 1 4 18 34 45 60 PAY PLAN SES 8 EJ/EK 1 EN 04 2 NQ (Prof/Tech/Admin) 189 NU (Tech/Admin Support) 7 DIVERSITY 207 76 36.7% American Indian Alaska Native African American Asian American Pacific Islander Hispanic White 63.3% Associate Administrator for Management & Budget (NA-MB) As of September 5, 2015 SES EJ/EK EN 04 NQ NU 3.9% 0.5% 1.0% 91.3% 3.4% 0.5% 1.0% 5.3% 15.0% 0.5% 1.9% 8.7% 16.4% 21.7% 29.0% Prepared by

  19. TOTAL WORKFORCE Males

    National Nuclear Security Administration (NNSA)

    2 Females Male Female Male Female Male Female Male Female Male Female 0 1 3 6 4 1 8 4 65 30 PAY PLAN SES 2 EJ/EK 15 EN 05 1 EN 04 38 EN 03 7 EN 00 2 NN (Engineering) 16 NQ (Prof/Tech/Admin) 38 NU (Tech/Admin Support) 3 DIVERSITY 122 80 65.6% American Indian Alaska Native African American Asian American Pacific Islander Hispanic White 34.4% NNSA Production Office (NPO) As of September 5, 2015 SES EJ/EK EN 05 EN 04 EN 03 EN 00 NN NQ NU 1.6% 12.3% 0.8% 31.1% 5.7% 1.6% 13.1% 31.1% 2.5% 0.0% 0.8%

  20. TOTAL WORKFORCE Males

    National Nuclear Security Administration (NNSA)

    4 Females Male Female Male Female Male Female Male Female Male Female 0 0 0 2 1 1 1 0 66 41 PAY PLAN NN (Engineering) 30 NQ (Prof/Tech/Admin) 70 NU (Tech/Admin Support) 12 DIVERSITY 112 68 60.7% American Indian Alaska Native African American Asian American Pacific Islander Hispanic White 39.3% Naval Reactors Laboratory Field Office (NRLFO) As of September 5, 2015 NN NQ NU 26.8% 62.5% 10.7% 0.0% 0.0% 0.0% 1.8% 0.9% 0.9% 0.9% 0.0% 58.9% 36.6% Prepared by NNSA Office of Civil Rights (NA-1.2)

  1. TOTAL WORKFORCE Males

    National Nuclear Security Administration (NNSA)

    2 Females Male Female Male Female Male Female Male Female Male Female 1 1 2 3 2 2 6 5 43 11 PAY PLAN SES 2 EJ/EK 2 EN 05 1 EN 04 23 NN (Engineering) 24 NQ (Prof/Tech/Admin) 22 NU (Tech/Admin Support) 2 DIVERSITY 76 54 71.1% American Indian Alaska Native African American Asian American Pacific Islander Hispanic White 28.9% Nevada Field Office As of September 5, 2015 SES EJ/EK EN 05 EN 04 NN NQ NU 2.6% 2.6% 1.3% 30.3% 31.6% 28.9% 2.6% 1.3% 1.3% 2.6% 3.9% 2.6% 2.6% 7.9% 6.6% 56.6% 14.5% Prepared by

  2. TOTAL WORKFORCE Males

    National Nuclear Security Administration (NNSA)

    0 Females Male Female Male Female Male Female Male Female Male Female 0 1 2 4 1 0 0 0 13 5 PAY PLAN SES 1 EN 05 1 EN 04 3 NN (Engineering) 11 NQ (Prof/Tech/Admin) 9 NU (Tech/Admin Support) 1 Savannah River Field Office As of September 5, 2015 DIVERSITY 26 16 61.5% American Indian Alaska Native African American Asian American Pacific Islander Hispanic White 38.5% SES EN 05 EN 04 NN NQ NU 3.8% 3.8% 11.5% 42.3% 34.6% 3.8% 0.0% 3.8% 7.7% 15.4% 3.8% 0.0% 0.0% 0.0% 50.0% 19.2% Prepared by NNSA Office

  3. Guidance on the Use of Hand-Held Survey Meters for radiological Triage: Time-Dependent Detector Count Rates Corresponding to 50, 250, and 500 mSv Effective Dose for Adult Males and Adult Females

    SciTech Connect (OSTI)

    Bolch, W.E.; Hurtado, J.L.; Lee, C.; Manger, Ryan P; Hertel, Nolan; Burgett, E.; Dickerson, W.

    2012-01-01

    In June 2006, the Radiation Studies Branch of the Centers for Disease Control and Prevention held a workshop to explore rapid methods of facilitating radiological triage of large numbers of potentially contaminated individuals following detonation of a radiological dispersal device. Two options were discussed. The first was the use of traditional gamma cameras in nuclear medicine departments operated as makeshift wholebody counters. Guidance on this approach is currently available from the CDC. This approach would be feasible if a manageable number of individuals were involved, transportation to the relevant hospitals was quickly provided, and the medical staff at each facility had been previously trained in this non-traditional use of their radiopharmaceutical imaging devices. If, however, substantially larger numbers of individuals (100 s to 1,000 s) needed radiological screening, other options must be given to first responders, first receivers, and health physicists providing medical management. In this study, the second option of the workshop was investigated by the use of commercially available portable survey meters (either NaI or GM based) for assessing potential ranges of effective dose (G50, 50Y250, 250Y500, and 9500 mSv). Two hybrid computational phantoms were used to model an adult male and an adult female subject internally contaminated with 241Am, 60Cs, 137Cs, 131I, or 192Ir following an acute inhalation or ingestion intake. As a function of time following the exposure, the net count rates corresponding to committed effective doses of 50, 250, and 500 mSv were estimated via Monte Carlo radiation transport simulation for each of four different detector types, positions, and screening distances. Measured net count rates can be compared to these values, and an assignment of one of four possible effective dose ranges could be made. The method implicitly assumes that all external contamination has been removed prior to screening and that the measurements be conducted in a low background, and possibly mobile, facility positioned at the triage location. Net count rate data are provided in both tabular and graphical format within a series of eight handbooks available at the CDC website (http://www.bt.cdc.gov/radiation/clinicians/evaluation).

  4. Current

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    The technique applied successfully in experi- ment is control of the inductive current density profile. A surface poloidal inductive electric field has been applied to drive edge ...

  5. Gender-specific reduction of hepatic Mrp2 expression by high-fat diet protects female mice from ANIT toxicity

    SciTech Connect (OSTI)

    Kong, Bo; Csanaky, Ivn L.; Aleksunes, Lauren M.; Patni, Meghan; Chen, Qi; Ma, Xiaochao; Jaeschke, Hartmut; Weir, Scott; Broward, Melinda; Klaassen, Curtis D.; University of Kansas Cancer Center, Kansas City, KS ; Guo, Grace L.

    2012-06-01

    Emerging evidence suggests that feeding a high-fat diet (HFD) to rodents affects the expression of genes involved in drug transport. However, gender-specific effects of HFD on drug transport are not known. The multidrug resistance-associated protein 2 (Mrp2, Abcc2) is a transporter highly expressed in the hepatocyte canalicular membrane and is important for biliary excretion of glutathione-conjugated chemicals. The current study showed that hepatic Mrp2 expression was reduced by HFD feeding only in female, but not male, C57BL/6J mice. In order to determine whether down-regulation of Mrp2 in female mice altered chemical disposition and toxicity, the biliary excretion and hepatotoxicity of the Mrp2 substrate, ?-naphthylisothiocyanate (ANIT), were assessed in male and female mice fed control diet or HFD for 4 weeks. ANIT-induced biliary injury is a commonly used model of experimental cholestasis and has been shown to be dependent upon Mrp2-mediated efflux of an ANIT glutathione conjugate that selectively injures biliary epithelial cells. Interestingly, HFD feeding significantly reduced early-phase biliary ANIT excretion in female mice and largely protected against ANIT-induced liver injury. In summary, the current study showed that, at least in mice, HFD feeding can differentially regulate Mrp2 expression and function and depending upon the chemical exposure may enhance or reduce susceptibility to toxicity. Taken together, these data provide a novel interaction between diet and gender in regulating hepatobiliary excretion and susceptibility to injury. -- Highlights: ? High-fat diet decreases hepatic Mrp2 expression only in female but not in male mice. ? HFD significantly reduces early-phase biliary ANIT excretion in female mice. ? HFD protects female mice against ANIT-induced liver injury.

  6. Jonathan Male | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Jonathan Male About Us Jonathan Male - Director, Bioenergy Technologies Office Photo of Jonathan Male Dr. Jonathan Male is the Director for the Bioenergy Technologies Office (BETO) in the Office of Energy Efficiency and Renewable Energy (EERE). In this role, he leads the Office's work to lower costs, reduce technical risk, and accelerate deployment of bioenergy and renewable chemicals technologies. He oversees research and development across the entire supply chain-from sustainable biomass

  7. Current sensor

    DOE Patents [OSTI]

    Yakymyshyn, Christopher Paul; Brubaker, Michael Allen; Yakymyshyn, Pamela Jane

    2007-01-16

    A current sensor is described that uses a plurality of magnetic field sensors positioned around a current carrying conductor. The sensor can be hinged to allow clamping to a conductor. The current sensor provides high measurement accuracy for both DC and AC currents, and is substantially immune to the effects of temperature, conductor position, nearby current carrying conductors and aging.

  8. Crybb2 deficiency impairs fertility in female mice

    SciTech Connect (OSTI)

    Gao, Qian; Sun, Li-Li; Xiang, Fen-Fen; Gao, Li; Jia, Yin; Zhang, Jian-Rong; Tao, Hai-Bo; Zhang, Jun-Jie; Li, Wen-Jie

    2014-10-10

    Highlights: Crybb2 deletion impaired female fertility. Crybb2 deletion dramatically affected the production of reproduction-related hormones and hormone response. Crybb2 deletion impaired follicular development and inhibited the proliferation of granulosa cells. Crybb2 deletion promoted follicular atresia and apoptosis in granulosa cells. - Abstract: Beta-B2-crystallin (CRYBB2), encoded by Crybb2 gene, is a major protein in the mammalian eye lens that plays an important role in maintaining the transparency of the ocular lens. However, CRYBB2 also plays important roles in many extra-lenticular tissues and organs such as the retina, brain and testis. Our previous studies demonstrated that male Crybb2 deficient (Crybb2{sup ?/?}) mice have reduced fertility compared with wild-type (WT) mice, while female Crybb2{sup ?/?} mice exhibited reduced ovary weights and shorter estrous cycle percentages. Here we specifically investigated the role of CRYBB2 in the female reproductive system. Our studies revealed that ovaries from female Crybb2{sup ?/?} mice exhibited significantly reduced numbers of primordial, secondary and pre-ovulatory follicles when compared with WT mice, while the rate of atretic follicles was also increased. Additionally, fewer eggs were collected from the oviduct of Crybb2{sup ?/?} female mice after superovulation. Estrogen levels were higher in the metestrus and diestrus cycles of female Crybb2{sup ?/?} mice, while progesterone levels were lower in diestrus cycles. Furthermore, the expression of survival and cell cycle genes, Bcl-2, Cdk4 and Ccnd2, were significantly decreased in granulosa cells isolated from female Crybb2{sup ?/?} mice, consistent with the predominant expression of CRYBB2 in ovarian granulosa cells. Our results reveal a critical role for CRYBB2 in female fertility and specific effects on the proliferation and survival status of ovarian granulosa cells.

  9. Current Contracts

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Current Awards Stewardship Science Academic Alliances (SSAA) Program Current Awards Under Construction

    Current Awards National Laser Users' Facility Grant Program Current Awards Under Construction

    Nuclear Waste Partnership (NWP) U.S. Department of Energy Carlsbad Field Office Management and Operating Contractor for the Waste Isolation Pilot Plant Contract Number DE-EM0001971 NWP Contract DE-EM0001971 Award/Contract Section B - Supplies or Services Prices / Costs Section C -

  10. Current Titles

    SciTech Connect (OSTI)

    Various

    2006-06-01

    This booklet is published for those interested in current research being conducted at the National Center for Electron Microscopy. The NCEM is a DOE-designated national user facility and is available at no charge to qualified researchers. Access is controlled by an external steering committee. Interested researchers may contact Jane Cavlina, Administrator, at 510/486-6036.

  11. Current Research

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Current Research The U.S. Department of Transportation (USDOT) has established its only high-performance computing and engineering analysis research facility at Argonne National Laboratory to provide applications support in key areas of applied research and development for the USDOT community. The Transportation Research and Analysis Computing Center (TRACC) features a state-of-the-art massively parallel computer system, advanced scientific visualization capability, high-speed network

  12. Assessment of High Rates of Precocious Male Maturation in a Spring Chinook Salmon Supplementation Hatchery Program, Annual Report 2002-2003.

    SciTech Connect (OSTI)

    Larsen, Donald; Beckman, Brian; Cooper, Kathleen

    2003-08-01

    The Yakima River Spring Chinook Salmon Supplementation Project in Washington State is currently one of the most ambitious efforts to enhance a natural salmon population in the United States. Over the past five years we have conducted research to characterize the developmental physiology of naturally- and hatchery-reared wild progeny spring chinook salmon (Oncorhynchus tshawytscha) in the Yakima River basin. Fish were sampled at the main hatchery in Cle Elum, at remote acclimation sites and, during smolt migration, at downstream dams. Throughout these studies the maturational state of all fish was characterized using combinations of visual and histological analysis of testes, gonadosomatic index (GSI), and measurement of plasma 11-ketotestosterone (11-KT). We established that a plasma 11-KT threshold of 0.8 ng/ml could be used to designate male fish as either immature or precociously maturing approximately 8 months prior to final maturation (1-2 months prior to release as 'smolts'). Our analyses revealed that 37-49% of the hatchery-reared males from this program undergo precocious maturation at 2 years of age and a proportion of these fish appear to residualize in the upper Yakima River basin throughout the summer. An unnaturally high incidence of precocious male maturation may result in loss of potential returning anadromous adults, skewing of female: male sex ratios, ecological, and genetic impacts on wild populations and other native species. Precocious male maturation is significantly influenced by growth rate at specific times of year and future studies will be conducted to alter maturation rates through seasonal growth rate manipulations.

  13. Current to Current | Open Energy Information

    Open Energy Info (EERE)

    Current Jump to: navigation, search Name: Current to Current Address: 35 Corporate Dr Place: Burlington Zip: 1803 Region: United States Sector: Marine and Hydrokinetic Phone...

  14. Gender, Lies and Video Games: the Truth about Females and Computing

    ScienceCinema (OSTI)

    Klawe, Maria M. [Princeton University, Princeton, New Jersey, United States

    2009-09-01

    This talk explores how girls and women differ from boys and men in their uses of and attitudes towards computers and computing. From playing computer games to pursuing computing careers, the participation of females tends to be very low compared to that of males. Why is this? Opinions range from girls wanting to avoid the math and/or the geek image of programming to girls having better things to do with their lives. We discuss research findings on this issue, as well as initiatives designed to increase the participation of females in computing.

  15. Tracking the sources of polybrominated diphenyl ethers in birds: Foraging in waste management facilities results in higher DecaBDE exposure in males

    SciTech Connect (OSTI)

    Gentes, Marie-Line; Mazerolle, Marc J.; Giroux, Jean-François; Patenaude-Monette, Martin; and others

    2015-04-15

    Differences in feeding ecology are now recognized as major determinants of inter-individual variations in contaminant profiles of free-ranging animals, but exceedingly little attention has been devoted to the role of habitat use. Marked inter-individual variations and high levels of polybrominated diphenyl ethers (PBDEs) (e.g., DecaBDE) have previously been documented in ring-billed gulls (Larus delawarensis) breeding in a colony near Montreal (QC, Canada). However, the environmental sources of these compounds, and thus the reasons causing these large inter-individual variations remain unidentified. In the present study, we used GPS-based telemetry (±5 to 10 m precision) to track ring-billed gulls from this colony to reconstruct their movements at the landscape level. We related habitat use of individual gulls (n=76) to plasma concentrations (ng/g ww) and relative contributions (percentages) to Σ{sub 38}PBDEs of major congeners in the internationally restricted PentaBDE and current-use DecaBDE mixtures. Male gulls that visited waste management facilities (WMFs; i.e., landfills, wastewater treatment plants and related facilities; 25% of all GPS-tracked males) exhibited greater DecaBDE (concentrations and percentages) and lower PentaBDE (percentages) relative to those that did not. In contrast, no such relationships were found in females. Moreover, in males, DecaBDE (concentrations and percentages) increased with percentages of time spent in WMFs (i.e., ~5% of total foraging time), while PentaBDE (percentages) decreased. No relationships between percentages of time spent in other habitats (i.e., urban areas, agriculture fields, and St. Lawrence River) were found in either sex. These findings suggest that animals breeding in the vicinity of WMFs as well as mobile species that only use these sites for short stopovers to forage, could be at risk of enhanced DecaBDE exposure. - Highlights: • The study was conducted on breeding gulls with high levels of flame retardants. • Ring-billed gulls were GPS-tracked to associate habitat use with plasma PBDEs. • Males that visited waste management facilities had greater DecaBDE. • DecaBDE also increased with time spent in waste management facilities in males. • No relationships between habitat use and PBDEs were found in females.

  16. Inhalation reproductive toxicology studies: Male dominant lethal study of n-hexane in Swiss (CD-1) mice: Final report

    SciTech Connect (OSTI)

    Mast, T.J.; Rommereim, R.L.; Evanoff, J.J.; Sasser, L.B.; Decker, J.R.; Stoney, K.H.; Weigel, R.J.; Westerberg, R.B.

    1988-08-01

    The straight-chain hydrocarbon, n-hexane, is a volatile, ubiquitous solvent routinely used in industrial environments; consequently, the opportunity for industrial, environmental or accidental exposure to hexane vapors is significant. Although myelinated nerve tissue is the primary target organ of hexane, the testes have also been identified as being sensitive to hexacarbon exposure. The objective of this study was to evaluate male dominant lethal effects in Swiss (CD-1) mice after exposure to 0, 200, 1000, or 5000 ppM n-hexane, 20 h/day for 5 consecutive days. Each exposure concentration consisted of 30 randomly selected, proven male breeders; 4 groups. The mice were weighed just prior to the first day of exposure and at weekly intervals until sacrifice. Ten males in each dose group were sacrificed one day after the cessation of exposure, and their testes and epididymides were removed for evaluation of the germinal epithelium. The remaining male mice, 20 per group, were individually housed in hanging wire-mesh breeding cages where they were mated with unexposed, virgin females for eight weekly intervals; new females were provided each week. The mated females were sacrificed 12 days after the last day of cohabitation and their reproductive status and the number and viability of the implants were recorded. The appearance and behavior of the male mice were unremarkable throughout the study period and no evidence of n-hexane toxicity was observed. 18 refs., 3 figs., 11 tabs.

  17. Current Schedule of Experiments

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Current Schedule of Experiments Current Schedule of Experiments - Updated 4/2016

  18. Superconducting fault current controller/current controller

    DOE Patents [OSTI]

    Cha, Yung S.

    2004-06-15

    A superconducting fault current controller/current controller employs a superconducting-shielded core reactor (SSCR) with a variable impedance in a secondary circuit to control current in a primary circuit such as an electrical distribution system. In a second embodiment, a variable current source is employed in a secondary circuit of an SSCR to control current in the primary circuit. In a third embodiment, both a variable impedance in one secondary circuit and a variable current source in a second circuit of an SSCR are employed for separate and independent control of current in the primary circuit.

  19. Gender Equality and Female Empowerment Policy

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    GENDER EQUALITY AND FEMALE EMPOWERMENT POLICY USAID POLICY MARCH 2012 "Achieving our objectives for global development will demand accelerated efforts to achieve gender equality and women's empowerment. Otherwise, peace and prosperity will have their own glass ceiling." Hillary Clinton JANUARY 2012 USAID GENDER EQUALITY AND FEMALE EMPOWERMENT POLICY MARCH 2012 WASHINGTON, DC i Photo credits: Cover (clockwise from top left): Erwin Rose/USAID;The Hunger Project; Unilever Tea Tanzania,

  20. Commercial Current Promotions

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    New Commercial Program Development Commercial Current Promotions Industrial Federal Agriculture This page features all current special promotions for commercial programs....

  1. Hepatic injury induces contrasting response in liver and kidney to chemicals that are metabolically activated: Role of male sex hormone

    SciTech Connect (OSTI)

    Kim, Young C. [College of Pharmacy, Seoul National University, San 56-1 Shinrim-Dong, Kwanak-Ku, Seoul (Korea, Republic of)], E-mail: youckim@snu.ac.kr; Yim, Hye K.; Jung, Young S. [College of Pharmacy, Seoul National University, San 56-1 Shinrim-Dong, Kwanak-Ku, Seoul (Korea, Republic of); Park, Jae H. [College of Veterinary Medicine, Seoul National University, San 56-1 Shinrim-Dong, Kwanak-Ku, Seoul (Korea, Republic of); Kim, Sung Y. [College of Pharmacy, Wonkwang University, 344-2 Shinyong-Dong, Iksan (Korea, Republic of)

    2007-08-15

    Injury to liver, resulting in loss of its normal physiological/biochemical functions, may adversely affect a secondary organ. We examined the response of the liver and kidney to chemical substances that require metabolic activation for their toxicities in mice with a preceding liver injury. Carbon tetrachloride treatment 24 h prior to a challenging dose of carbon tetrachloride or acetaminophen decreased the resulting hepatotoxicity both in male and female mice as determined by histopathological examination and increases in serum enzyme activities. In contrast, the renal toxicity of the challenging toxicants was elevated markedly in male, but not in female mice. Partial hepatectomy also induced similar changes in the hepatotoxicity and nephrotoxicity of a challenging toxicant, suggesting that the contrasting response of male liver and kidney was associated with the reduction of the hepatic metabolizing capacity. Carbon tetrachloride pretreatment or partial hepatectomy decreased the hepatic xenobiotic-metabolizing enzyme activities in both sexes but elevated the renal p-nitrophenol hydroxylase, p-nitroanisole O-demethylase and aminopyrine N-demethylase activities significantly only in male mice. Increases in Cyp2e1 and Cyp2b expression were also evident in male kidney. Castration of males or testosterone administration to females diminished the sex-related differences in the renal response to an acute liver injury. The results indicate that reduction of the hepatic metabolizing capacity induced by liver injury may render secondary target organs susceptible to chemical substances activated in these organs. This effect may be sex-specific. It is also suggested that an integrated approach should be taken for proper assessment of chemical hazards.

  2. Current to Current Corporation | Open Energy Information

    Open Energy Info (EERE)

    Zip: 1803 Sector: Ocean Product: Developing a technology which generates power from ocean currents : Submersible Power Generators (SPG). Coordinates: 44.446275,...

  3. Current measuring system

    DOE Patents [OSTI]

    Dahl, David A.; Appelhans, Anthony D.; Olson, John E.

    1997-01-01

    A current measuring system comprising a current measuring device having a first electrode at ground potential, and a second electrode; a current source having an offset potential of at least three hundred volts, the current source having an output electrode; and a capacitor having a first electrode electrically connected to the output electrode of the current source and having a second electrode electrically connected to the second electrode of the current measuring device.

  4. Current measuring system

    DOE Patents [OSTI]

    Dahl, D.A.; Appelhans, A.D.; Olson, J.E.

    1997-09-09

    A current measuring system is disclosed comprising a current measuring device having a first electrode at ground potential, and a second electrode; a current source having an offset potential of at least three hundred volts, the current source having an output electrode; and a capacitor having a first electrode electrically connected to the output electrode of the current source and having a second electrode electrically connected to the second electrode of the current measuring device. 4 figs.

  5. Current measurement apparatus

    DOE Patents [OSTI]

    Umans, Stephen D.

    2008-11-11

    Apparatus and methods are provided for a system for measurement of a current in a conductor such that the conductor current may be momentarily directed to a current measurement element in order to maintain proper current without significantly increasing an amount of power dissipation attributable to the current measurement element or adding resistance to assist in current measurement. The apparatus and methods described herein are useful in superconducting circuits where it is necessary to monitor current carried by the superconducting elements while minimizing the effects of power dissipation attributable to the current measurement element.

  6. Current Power Rates

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    links Financial Information Financial Public Processes Asset Management Cost Verification Process Rate Cases Rate Information Current Power Rates Current Transmission Rates...

  7. Current Transmission Rates

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    links Financial Information Financial Public Processes Asset Management Cost Verification Process Rate Cases Rate Information Current Power Rates Current Transmission Rates...

  8. Anomalous - viscosity current drive

    DOE Patents [OSTI]

    Stix, Thomas H.; Ono, Masayuki

    1988-01-01

    An apparatus and method for maintaining a steady-state current in a toroidal magnetically confined plasma. An electric current is generated in an edge region at or near the outermost good magnetic surface of the toroidal plasma. The edge current is generated in a direction parallel to the flow of current in the main plasma and such that its current density is greater than the average density of the main plasma current. The current flow in the edge region is maintained in a direction parallel to the main current for a period of one or two of its characteristic decay times. Current from the edge region will penetrate radially into the plasma and augment the main plasma current through the mechanism of anomalous viscosity. In another aspect of the invention, current flow driven between a cathode and an anode is used to establish a start-up plasma current. The plasma-current channel is magnetically detached from the electrodes, leaving a plasma magnetically insulated from contact with any material obstructions including the cathode and anode.

  9. About Direct Current

    Broader source: Energy.gov [DOE]

    Learn about Direct Current -- a podcast about the energy that lights our homes, powers our lives and shapes our world.

  10. CIRCUITS FOR CURRENT MEASUREMENTS

    DOE Patents [OSTI]

    Cox, R.J.

    1958-11-01

    Circuits are presented for measurement of a logarithmic scale of current flowing in a high impedance. In one form of the invention the disclosed circuit is in combination with an ionization chamber to measure lonization current. The particular circuit arrangement lncludes a vacuum tube having at least one grid, an ionization chamber connected in series with a high voltage source and the grid of the vacuum tube, and a d-c amplifier feedback circuit. As the ionization chamber current passes between the grid and cathode of the tube, the feedback circuit acts to stabilize the anode current, and the feedback voltage is a measure of the logaritbm of the ionization current.

  11. WE-E-BRE-01: An Image-Based Skeletal Dosimetry Model for the ICRP Reference Adult Female - Internal Electron Sources

    SciTech Connect (OSTI)

    O'Reilly, S; Maynard, M; Marshall, E; Bolch, W; Sinclair, L; Rajon, D; Wayson, M

    2014-06-15

    Purpose: Limitations seen in previous skeletal dosimetry models, which are still employed in commonly used software today, include the lack of consideration of electron escape and cross-fire from cortical bone, the modeling of infinite spongiosa, the disregard of the effect of varying cellularity on active marrow self-irradiation, and the lack of use of the more recent ICRP definition of a 50 micron surrogate tissue region for the osteoprogenitor cells - shallow marrow. These limitations were addressed in the present dosimetry model. Methods: Electron transport was completed to determine specific absorbed fractions to active marrow and shallow marrow of the skeletal regions of the adult female. The bone macrostructure was obtained from the whole-body hybrid computational phantom of the UF series of reference phantoms, while the bone microstructure was derived from microCT images of skeletal region samples taken from a 45 year-old female cadaver. The target tissue regions were active marrow and shallow marrow. The source tissues were active marrow, inactive marrow, trabecular bone volume, trabecular bone surfaces, cortical bone volume and cortical bone surfaces. The marrow cellularity was varied from 10 to 100 percent for active marrow self-irradiation. A total of 33 discrete electron energies, ranging from 1 keV to 10 MeV, were either simulated or modeled analytically. Results: The method of combining macro- and microstructure absorbed fractions calculated using MCNPX electron transport was found to yield results similar to those determined with the PIRT model for the UF adult male in the Hough et al. study. Conclusion: The calculated skeletal averaged absorbed fractions for each source-target combination were found to follow similar trends of more recent dosimetry models (image-based models) and did not follow current models used in nuclear medicine dosimetry at high energies (due to that models use of an infinite expanse of trabecular spongiosa)

  12. Electric current locator

    DOE Patents [OSTI]

    King, Paul E.; Woodside, Charles Rigel

    2012-02-07

    The disclosure herein provides an apparatus for location of a quantity of current vectors in an electrical device, where the current vector has a known direction and a known relative magnitude to an input current supplied to the electrical device. Mathematical constants used in Biot-Savart superposition equations are determined for the electrical device, the orientation of the apparatus, and relative magnitude of the current vector and the input current, and the apparatus utilizes magnetic field sensors oriented to a sensing plane to provide current vector location based on the solution of the Biot-Savart superposition equations. Description of required orientations between the apparatus and the electrical device are disclosed and various methods of determining the mathematical constants are presented.

  13. Current Solicitations - Hanford Site

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    DOE-RL Contracts/Procurements Current Solicitations DOE-RL Contracts/Procurements RL Contracts & Procurements Home Prime Contracts Current Solicitations Other Sources DOE RL Contracting Officers DOE RL Contracting Officer Representatives Current Solicitations Email Email Page | Print Print Page |Text Increase Font Size Decrease Font Size The Richland Operations Office uses Fedconnect (https://www.fedconnect.net) to post solicitations on FedBizOps. Quotes/proposals are also received using

  14. Current Testbed Research

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Current Testbed Research Previous Testbed Research Proposal Process Terms and Conditions Dark Fiber Testbed Federated Testbed Circuits Test Circuit Service Performance (perfSONAR)...

  15. Current Annualized Request

    Office of Environmental Management (EM)

    Appropriation FY 2012 FY 2013 FY 2014 Current Annualized Request CR % Energy And Water Development, And Related Agencies Energy Programs Energy Efficiency and Renewable Energy...

  16. RF current sensor

    DOE Patents [OSTI]

    Moore, James A.; Sparks, Dennis O.

    1998-11-10

    An RF sensor having a novel current sensing probe and a voltage sensing probe to measure voltage and current. The current sensor is disposed in a transmission line to link all of the flux generated by the flowing current in order to obtain an accurate measurement. The voltage sensor is a flat plate which operates as a capacitive plate to sense voltage on a center conductor of the transmission line, in which the measured voltage is obtained across a resistance leg of a R-C differentiator circuit formed by the characteristic impedance of a connecting transmission line and a capacitance of the plate, which is positioned proximal to the center conductor.

  17. Ultracapacitor current collector

    DOE Patents [OSTI]

    Jerabek, Elihu Calfin (Glenmont, NY); Mikkor, Mati (Ann Arbor, MI)

    2001-10-16

    An ultracapacitor having two solid, nonporous current collectors, two porous electrodes separating the collectors, a porous separator between the electrodes and an electrolyte occupying the pores in the electrodes and separator. At least one of the current collectors comprises a conductive metal substrate coated with a metal nitride, carbide or boride coating.

  18. Current level detector

    DOE Patents [OSTI]

    Kerns, Cordon R.

    1977-01-01

    A device is provided for detecting the current level of a DC signal. It includes an even harmonic modulator to which a reference AC signal is applied. The unknown DC signal acts on the reference AC signal so that the output of the modulator includes an even harmonic whose amplitude is proportional to the unknown DC current.

  19. Voltage controlled current source

    DOE Patents [OSTI]

    Casne, Gregory M.

    1992-01-01

    A seven decade, voltage controlled current source is described for use in testing intermediate range nuclear instruments that covers the entire test current range of from 10 picoamperes to 100 microamperes. High accuracy is obtained throughout the entire seven decades of output current with circuitry that includes a coordinated switching scheme responsive to the input signal from a hybrid computer to control the input voltage to an antilog amplifier, and to selectively connect a resistance to the antilog amplifier output to provide a continuous output current source as a function of a preset range of input voltage. An operator controlled switch provides current adjustment for operation in either a real-time simulation test mode or a time response test mode.

  20. CURRENT TRANSFER SYSTEMS

    DOE Patents [OSTI]

    Watt, D.A.

    1956-07-01

    A current transfer system is described for transferring current between a rotating member and a co-axial stationary member. The particular area of application for the invention is in connection with homopolar generators where a low voltage and high current are generated. The current tramsfer system of the invention comprises a rotor member and a co-axial stator member wherein one of the members is shaped to provide a circumferential surface concave in section and the other member is shaped to have a peripheral portion in close proximity to the surface, whereby a liquid metal can be stably supported between the two members when they are moving relative to one another to establish an electrical conducting path between the members.

  1. Current Annualized Request

    Office of Environmental Management (EM)

    Organization FY 2012 FY 2013 FY 2014 Current Annualized Request CR % National Security Weapons Activities* 7,214,834 7,557,342 7,868,409 +311,067 +4.1% Defense Nuclear...

  2. Geothermal Energy: Current abstracts

    SciTech Connect (OSTI)

    Ringe, A.C.

    1988-02-01

    This bulletin announces the current worldwide information available on the technologies required for economic recovery of geothermal energy and its use as direct heat or for electric power production. (ACR)

  3. Current control circuitry

    DOE Patents [OSTI]

    Taubman, Matthew S.

    2005-03-15

    Among the embodiments of the present invention is an apparatus that includes a transistor (30), a servo device (40), and a current source (50). The servo device (40) is operable to provide a common base mode of operation of the transistor (30) by maintaining an approximately constant voltage level at the transistor base (32b). The current source (150) is operable to provide a bias current to the transistor (30). A first device (24) provides an input signal to an electrical node (70) positioned between the emitter (32e) of the transistor (30) and the current source (50). A second device (26) receives an output signal from the collector (32c) of the transistor (30).

  4. Current Financial Opportunities

    Broader source: Energy.gov [DOE]

    Current hydrogen-related funding opportunities through the U.S. Department of Energy's (DOE) Fuel Cell Technologies Office are listed below. The Fuel Cell Technologies Office offers opportunities for both financial and technical assistance.

  5. Current Testbed Research

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Current Testbed Research Network R&D Software-Defined Networking (SDN) Experimental Network Testbeds 100G SDN Testbed Dark Fiber Testbed Test Circuit Service Testbed Results Current Testbed Research Previous Testbed Research Performance (perfSONAR) Software & Tools Development Data for Researchers Partnerships Publications Workshops Contact Us Technical Assistance: 1 800-33-ESnet (Inside US) 1 800-333-7638 (Inside US) 1 510-486-7600 (Globally) 1 510-486-7607 (Globally) Report Network

  6. Beam current sensor

    DOE Patents [OSTI]

    Kuchnir, Moyses; Mills, Frederick E.

    1987-01-01

    A current sensor for measuring the DC component of a beam of charged particles employs a superconducting pick-up loop probe, with twisted superconducting leads in combination with a Superconducting Quantum Interference Device (SQUID) detector. The pick-up probe is in the form of a single-turn loop, or a cylindrical toroid, through which the beam is directed and within which a first magnetic flux is excluded by the Meisner effect. The SQUID detector acts as a flux-to-voltage converter in providing a current to the pick-up loop so as to establish a second magnetic flux within the electrode which nulls out the first magnetic flux. A feedback voltage within the SQUID detector represents the beam current of the particles which transit the pick-up loop. Meisner effect currents prevent changes in the magnetic field within the toroidal pick-up loop and produce a current signal independent of the beam's cross-section and its position within the toroid, while the combination of superconducting elements provides current measurement sensitivites in the nano-ampere range.

  7. Beam current sensor

    DOE Patents [OSTI]

    Kuchnir, M.; Mills, F.E.

    1984-09-28

    A current sensor for measuring the dc component of a beam of charged particles employs a superconducting pick-up loop probe, with twisted superconducting leads in combination with a Superconducting Quantum Interference Device (SQUID) detector. The pick-up probe is in the form of a single-turn loop, or a cylindrical toroid, through which the beam is directed and within which a first magnetic flux is excluded by the Meisner effect. The SQUID detector acts as a flux-to-voltage converter in providing a current to the pick-up loop so as to establish a second magnetic flux within the electrode which nulls out the first magnetic flux. A feedback voltage within the SQUID detector represents the beam current of the particles which transit the pick-up loop. Meisner effect currents prevent changes in the magnetic field within the toroidal pick-up loop and produce a current signal independent of the beam's cross-section and its position within the toroid, while the combination of superconducting elements provides current measurement sensitivities in the nano-ampere range.

  8. Adjustable direct current and pulsed circuit fault current limiter

    DOE Patents [OSTI]

    Boenig, Heinrich J.; Schillig, Josef B.

    2003-09-23

    A fault current limiting system for direct current circuits and for pulsed power circuit. In the circuits, a current source biases a diode that is in series with the circuits' transmission line. If fault current in a circuit exceeds current from the current source biasing the diode open, the diode will cease conducting and route the fault current through the current source and an inductor. This limits the rate of rise and the peak value of the fault current.

  9. FAST ACTING CURRENT SWITCH

    DOE Patents [OSTI]

    Batzer, T.H.; Cummings, D.B.; Ryan, J.F.

    1962-05-22

    A high-current, fast-acting switch is designed for utilization as a crowbar switch in a high-current circuit such as used to generate the magnetic confinement field of a plasma-confining and heat device, e.g., Pyrotron. The device particularly comprises a cylindrical housing containing two stationary, cylindrical contacts between which a movable contact is bridged to close the switch. The movable contact is actuated by a differential-pressure, airdriven piston assembly also within the housing. To absorb the acceleration (and the shock imparted to the device by the rapidly driven, movable contact), an adjustable air buffer assembly is provided, integrally connected to the movable contact and piston assembly. Various safety locks and circuit-synchronizing means are also provided to permit proper cooperation of the invention and the high-current circuit in which it is installed. (AEC)

  10. Clean Currents | Open Energy Information

    Open Energy Info (EERE)

    Currents Jump to: navigation, search Logo: Clean Currents Name: Clean Currents Address: 155 Gibbs St. Suite 425 Place: Rockville, Maryland Zip: 20850 Sector: Wind energy...

  11. Fault current limiter

    DOE Patents [OSTI]

    Darmann, Francis Anthony

    2013-10-08

    A fault current limiter (FCL) includes a series of high permeability posts for collectively define a core for the FCL. A DC coil, for the purposes of saturating a portion of the high permeability posts, surrounds the complete structure outside of an enclosure in the form of a vessel. The vessel contains a dielectric insulation medium. AC coils, for transporting AC current, are wound on insulating formers and electrically interconnected to each other in a manner such that the senses of the magnetic field produced by each AC coil in the corresponding high permeability core are opposing. There are insulation barriers between phases to improve dielectric withstand properties of the dielectric medium.

  12. Motor Current Data Collection System

    Energy Science and Technology Software Center (OSTI)

    1992-12-01

    The Motor Current Data Collection System (MCDCS) uses IBM compatible PCs to collect, process, and store Motor Current Signature information.

  13. High current ion source

    DOE Patents [OSTI]

    Brown, Ian G. (1088 Woodside Rd., Berkeley, CA 94708); MacGill, Robert A. (645 Kern St., Richmond, CA 94805); Galvin, James E. (2 Commodore Dr. #276, Emeryville, CA 94608)

    1990-01-01

    An ion source utilizing a cathode and anode for producing an electric arc therebetween. The arc is sufficient to vaporize a portion of the cathode to form a plasma. The plasma leaves the generation region and expands through another regon. The density profile of the plasma may be flattened using a magnetic field formed within a vacuum chamber. Ions are extracted from the plasma to produce a high current broad on beam.

  14. SRNL LDRD - Current Projects

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Current Projects Continuing Strategic Initiatives Long-Term, In-Situ Monitoring for Subsurface Contaminant Stability (Charles Turick) Spectroscopic Techniques for the Characterization of Particulates from Proliferation Activities (Eliel Villa-Aleman) Ternary Carbide Clad Coatings, and High-Conductivity Fuel System for Accident Tolerant Light Water Reactor Fuel (Robert Sindelar) Structural Integrity of Dual-Purpose Canister for Used Nuclear Fuel under Extended Storage and Transportation (Thad

  15. Fuel cell current collector

    DOE Patents [OSTI]

    Katz, Murray; Bonk, Stanley P.; Maricle, Donald L.; Abrams, Martin

    1991-01-01

    A fuel cell has a current collector plate (22) located between an electrode (20) and a separate plate (25). The collector plate has a plurality of arches (26, 28) deformed from a single flat plate in a checkerboard pattern. The arches are of sufficient height (30) to provide sufficient reactant flow area. Each arch is formed with sufficient stiffness to accept compressive load and sufficient resiliently to distribute the load and maintain electrical contact.

  16. Management of Male Breast Cancer in the United States: A Surveillance, Epidemiology and End Results Analysis

    SciTech Connect (OSTI)

    Fields, Emma C.; DeWitt, Peter; Fisher, Christine M.; Rabinovitch, Rachel

    2013-11-15

    Purpose: To analyze the stage-specific management of male breast cancer (MBC) with surgery and radiation therapy (RT) and relate them to outcomes and to female breast cancer (FBC). Methods and Materials: The Surveillance, Epidemiology, and End Results database was queried for all primary invasive MBC and FBC diagnosed from 1973 to 2008. Analyzable data included age, race, registry, grade, stage, estrogen and progesterone receptor status, type of surgery, and use of RT. Stage was defined as localized (LocD): confined to the breast; regional (RegD): involving skin, chest wall, and/or regional lymph nodes; and distant: M1. The primary endpoint was cause-specific survival (CSS). Results: A total of 4276 cases of MBC and 718,587 cases of FBC were identified. Male breast cancer constituted 0.6% of all breast cancer. Comparing MBC with FBC, mastectomy (M) was used in 87.4% versus 38.3%, and breast-conserving surgery in 12.6% versus 52.6% (P<10{sup ?4}). For males with LocD, CSS was not significantly different for the 4.6% treated with lumpectomy/RT versus the 70% treated with M alone (hazard ratio [HR] 1.33; 95% confidence interval [CI] 0.49-3.61; P=.57). Postmastectomy RT was delivered in 33% of males with RegD and was not associated with an improvement in CSS (HR 1.11; 95% CI 0.88-1.41; P=.37). There was a significant increase in the use of postmastectomy RT in MBC over time: 24.3%, 27.2%, and 36.8% for 1973-1987, 1988-1997, and 1998-2008, respectively (P<.0001). Cause-specific survival for MBC has improved: the largest significant change was identified for men diagnosed in 1998-2008 compared with 1973-1987 (HR 0.73; 95% CI 0.60-0.88; P=.0004). Conclusions: Surgical management of MBC is dramatically different than for FBC. The majority of males with LocD receive M despite equivalent CSS with lumpectomy/RT. Postmastectomy RT is greatly underutilized in MBC with RegD, although a CSS benefit was not demonstrated. Outcomes for MBC are improving, attributable to improved therapy and its use in this unscreened population.

  17. Current Annualized Request

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Appropriation FY 2012 FY 2013 FY 2014 Current Annualized Request CR $ % Energy And Water Development, And Related Agencies Energy Programs Energy Efficiency and Renewable Energy 1,780,548 1,820,713 2,775,700 +995,152 +55.9% Electricity Delivery and Energy Reliability 136,178 139,954 169,015 +32,837 +24.1% Nuclear Energy 760,466 770,075 735,460 -25,006 -3.3% Race to the Top for Energy Efficiency and Grid Modernization 0 0 200,000 +200,000 N/A Fossil Energy Programs Fossil Energy Research and

  18. Current status of APEX

    SciTech Connect (OSTI)

    Betts, R.R.

    1993-10-01

    The ATLAS Positron Experiment (APEX) is designed to investigate narrow structures observed in the energy spectra of positions and positron-electron coincidences produced in collisions of high Z ions with high Z targets at Coulomb barrier energies. The apparatus consists of a large diameter uniform-field solenoid mounted transverse to the beam direction. Scattered heavy ions are detected in a gas-counter array. Electrons and positrons transversing the solenoid are detected in highly segmented silicon arrays surrounded by position sensitive NaI detectors for positron identification. The concept of APEX and the current status of the apparatus will be discussed.

  19. Aternating current photovoltaic building block

    DOE Patents [OSTI]

    Bower, Ward Issac; Thomas, Michael G.; Ruby, Douglas S.

    2004-06-15

    A modular apparatus for and method of alternating current photovoltaic power generation comprising via a photovoltaic module, generating power in the form of direct current; and converting direct current to alternating current and exporting power via one or more power conversion and transfer units attached to the module, each unit comprising a unitary housing extending a length or width of the module, which housing comprises: contact means for receiving direct current from the module; one or more direct current-to-alternating current inverters; an alternating current bus; and contact means for receiving alternating current from the one or more inverters.

  20. Current Annualized Request

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Organization FY 2012 FY 2013 FY 2014 Current Annualized Request CR $ % National Security Weapons Activities* 7,214,834 7,557,342 7,868,409 +311,067 +4.1% Defense Nuclear Nonproliferation 2,300,950 2,409,930 2,140,142 -160,808 -7.0% Naval Reactors 1,080,000 1,086,610 1,246,134 +166,134 +15.4% Office of the Administrator 410,000 412,509 397,784 -12,216 -3.0% Total, National Nuclear Security Administration 11,005,784 11,466,391 11,652,469 +304,177 +2.8% Energy and Environment Energy Efficiency and

  1. Currents, Berkeley Lab's Biweekly Newspaper

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Currents Index A-Z Index Search Phone Book Comments Ernest Orlando Lawrence Berkeley National Laboratory Search Currents Back Issues (1994 to present) Search Lab science articles...

  2. Differential regulation of apoptosis in slow and fast twitch muscles of aged female F344BN rats

    DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)

    Rice, Kevin M.; Manne, Nandini D. P. K.; Gadde, Murali K.; Paturi, Satyanarayana; Arvapalli, Ravikumar; Blough, Eric

    2015-03-28

    Age-related muscle atrophy is characterized by decreases in muscle mass and is thought be mediated, at least in part, by increases in myocyte apoptosis. Recent data has demonstrated that the degree of muscle loss with aging may differ between males and females while other work has suggested that apoptosis as indicated by DNA fragmentation may be regulated differently in fast- and slow-twitch muscles. Herein, we investigate how aging affects the regulation of muscle apoptosis in the fast-twitch extensor digitorum longus (EDL) and slow-twitch soleus muscles of young (6-month), aged (26-month), and very aged (30-month) female Fischer 344/NNiaHSD × Brown Norway/BiNiamore » (F344BN) rats. Tissue sections were stained with hydroethidium for ROS and protein extract was subjected to immunoblotting for assessing apoptotic markers. Our data suggest that decreases in muscle mass were associated with increased DNA fragmentation (TUNEL positive) and increases in reactive oxygen species (ROS) as determined by hydroethidium staining in both the EDL and soleus. Similar to our previous work using aged male animals, we observed that the time course and magnitude of changes in Bax, Bcl-2, caspase-3, caspase-9, and cleavage of α-fodrin protein were regulated differently between muscles. As a result, These data suggest that aging in the female F344BN rat is associated with decreases in muscle mass, elevations in ROS level, increased muscle cell DNA fragmentation, and alterations in cell membrane integrity and that apoptotic mechanisms may differ between fiber types.« less

  3. NONDESTRUCTIVE EDDY CURRENT TESTING

    DOE Patents [OSTI]

    Renken, C.J. Jr.

    1961-05-23

    An eddy current testing device is described for measuring metal continuity independent of probe-to-sample spacing. An inductance would test probe is made a leg of a variable impedance bridge and the bridge is balanced with the probe away from the sample. An a-c signal is applied across the input terminals of the bridge circuit. As the probe is brought into proximity with the metal sample, the resulting impedance change in the probe gives an output signal from the bridge whose phase angle is proportional to the sample continuity and amplitude is proportional to the probe-tosample spacing. The output signal from the bridge is applied to a compensating network where, responsive to amplitude changes from the bridge output signal, a constant phased voltage output is maintained when the sample is continuous regardless of probe-to-sample spacing. A phase meter calibrated to read changes in resistivity of the metal sample measures the phase shift between the output of the compensating network and the original a-c signal applied to the bridge.

  4. Circulating current battery heater

    DOE Patents [OSTI]

    Ashtiani, Cyrus N.; Stuart, Thomas A.

    2001-01-01

    A circuit for heating energy storage devices such as batteries is provided. The circuit includes a pair of switches connected in a half-bridge configuration. Unidirectional current conduction devices are connected in parallel with each switch. A series resonant element for storing energy is connected from the energy storage device to the pair of switches. An energy storage device for intermediate storage of energy is connected in a loop with the series resonant element and one of the switches. The energy storage device which is being heated is connected in a loop with the series resonant element and the other switch. Energy from the heated energy storage device is transferred to the switched network and then recirculated back to the battery. The flow of energy through the battery causes internal power dissipation due to electrical to chemical conversion inefficiencies. The dissipated power causes the internal temperature of the battery to increase. Higher internal temperatures expand the cold temperature operating range and energy capacity utilization of the battery. As disclosed, either fixed frequency or variable frequency modulation schemes may be used to control the network.

  5. High temperature current mirror amplifier

    DOE Patents [OSTI]

    Patterson, III, Raymond B.

    1984-05-22

    A high temperature current mirror amplifier having biasing means in the transdiode connection of the input transistor for producing a voltage to maintain the base-collector junction reversed-biased and a current means for maintaining a current through the biasing means at high temperatures so that the base-collector junction of the input transistor remained reversed-biased. For accuracy, a second current mirror is provided with a biasing means and current means on the input leg.

  6. Oscillatory nonohomic current drive for maintaining a plasma current

    DOE Patents [OSTI]

    Fisch, N.J.

    1984-01-01

    Apparatus and methods are described for maintaining a plasma current with an oscillatory nonohmic current drive. Each cycle of operation has a generation period in which current driving energy is applied to the plasma, and a relaxation period in which current driving energy is removed. Plasma parameters, such as plasma temperature or plasma average ionic charge state, are modified during the generation period so as to oscillate plasma resistivity in synchronism with the application of current driving energy. The invention improves overall current drive efficiencies.

  7. Oscillatory nonhmic current drive for maintaining a plasma current

    DOE Patents [OSTI]

    Fisch, Nathaniel J.

    1986-01-01

    Apparatus and method of the invention maintain a plasma current with an oscillatory nonohmic current drive. Each cycle of operation has a generation period in which current driving energy is applied to the plasma, and a relaxation period in which current driving energy is removed. Plasma parameters, such as plasma temperature or plasma average ionic charge state, are modified during the generation period so as to oscillate plasma resistivity in synchronism with the application of current driving energy. The invention improves overall current drive efficiencies.

  8. Galvanic currents and hydrogen permeation currents caused by galvanic coupling

    SciTech Connect (OSTI)

    Armacanquil, M.E. ); Harasyn, D.E. )

    1990-05-01

    This paper reports on galvanic coupling and hydrogen permeation experiments performed in a Devanathan-Stachurski cell to measure simultaneously the galvanic currents and the hydrogen permeation currents in an attempt to determine the extent of hydrogen charging into noble metals as a result of galvanic coupling. Large amounts of hydrogen permeated through the more noble element of the couple. The magnitude of the hydrogen permeation flux varied depending on the galvanic coupling conditions. No simple direct relationship between galvanic currents and hydrogen permeation currents was observed, although large hydrogen permeation currents were usually developed whenever large galvanic currents were established.

  9. High temperature current mirror amplifier

    DOE Patents [OSTI]

    Patterson, R.B. III.

    1984-05-22

    Disclosed is a high temperature current mirror amplifier having biasing means in the transdiode connection of the input transistor for producing a voltage to maintain the base-collector junction reversed-biased and a current means for maintaining a current through the biasing means at high temperatures so that the base-collector junction of the input transistor remained reversed-biased. For accuracy, a second current mirror is provided with a biasing means and current means on the input leg. 2 figs.

  10. Fault current limiter and alternating current circuit breaker

    DOE Patents [OSTI]

    Boenig, Heinrich J.

    1998-01-01

    A solid-state circuit breaker and current limiter for a load served by an alternating current source having a source impedance, the solid-state circuit breaker and current limiter comprising a thyristor bridge interposed between the alternating current source and the load, the thyristor bridge having four thyristor legs and four nodes, with a first node connected to the alternating current source, and a second node connected to the load. A coil is connected from a third node to a fourth node, the coil having an impedance of a value calculated to limit the current flowing therethrough to a predetermined value. Control means are connected to the thyristor legs for limiting the alternating current flow to the load under fault conditions to a predetermined level, and for gating the thyristor bridge under fault conditions to quickly reduce alternating current flowing therethrough to zero and thereafter to maintain the thyristor bridge in an electrically open condition preventing the alternating current from flowing therethrough for a predetermined period of time.

  11. Fault current limiter and alternating current circuit breaker

    DOE Patents [OSTI]

    Boenig, H.J.

    1998-03-10

    A solid-state circuit breaker and current limiter are disclosed for a load served by an alternating current source having a source impedance, the solid-state circuit breaker and current limiter comprising a thyristor bridge interposed between the alternating current source and the load, the thyristor bridge having four thyristor legs and four nodes, with a first node connected to the alternating current source, and a second node connected to the load. A coil is connected from a third node to a fourth node, the coil having an impedance of a value calculated to limit the current flowing therethrough to a predetermined value. Control means are connected to the thyristor legs for limiting the alternating current flow to the load under fault conditions to a predetermined level, and for gating the thyristor bridge under fault conditions to quickly reduce alternating current flowing therethrough to zero and thereafter to maintain the thyristor bridge in an electrically open condition preventing the alternating current from flowing therethrough for a predetermined period of time. 9 figs.

  12. Current:

    Office of Legacy Management (LM)

    Control c Health Physics Protection . 0 AECMED managed opeiations E Little or None .G AECME3 responsible for c AECKE3 responsibility accountability C Contractoi:'responsibilit...

  13. Current:

    Office of Legacy Management (LM)

    ORE OR RAW MATL 0 E q FINAL PRODUCT IJ E ; WASTE & RESIDUE 0 G E q ,. . ' . FEZtlED INVOLVE??ENl- AT SITE ----------... - Control c Health Physics Protection G AEC...

  14. Current

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    ... Institute of Technology (OIT) commissioned a newly installed 1.75 MW of geothermal power. Combined with a 2 MW solar array, this clean energy makes OIT the first university in ...

  15. Ionization tube simmer current circuit

    DOE Patents [OSTI]

    Steinkraus, R.F. Jr.

    1994-12-13

    A highly efficient flash lamp simmer current circuit utilizes a fifty percent duty cycle square wave pulse generator to pass a current over a current limiting inductor to a full wave rectifier. The DC output of the rectifier is then passed over a voltage smoothing capacitor through a reverse current blocking diode to a flash lamp tube to sustain ionization in the tube between discharges via a small simmer current. An alternate embodiment of the circuit combines the pulse generator and inductor in the form of an FET off line square wave generator with an impedance limited step up output transformer which is then applied to the full wave rectifier as before to yield a similar simmer current. 6 figures.

  16. Ionization tube simmer current circuit

    DOE Patents [OSTI]

    Steinkraus, Jr., Robert F.

    1994-01-01

    A highly efficient flash lamp simmer current circuit utilizes a fifty percent duty cycle square wave pulse generator to pass a current over a current limiting inductor to a full wave rectifier. The DC output of the rectifier is then passed over a voltage smoothing capacitor through a reverse current blocking diode to a flash lamp tube to sustain ionization in the tube between discharges via a small simmer current. An alternate embodiment of the circuit combines the pulse generator and inductor in the form of an FET off line square wave generator with an impedance limited step up output transformer which is then applied to the full wave rectifier as before to yield a similar simmer current.

  17. Inductance due to spin current

    SciTech Connect (OSTI)

    Chen, Wei

    2014-03-21

    The inductance of spintronic devices that transport charge neutral spin currents is discussed. It is known that in a media that contains charge neutral spins, a time-varying electric field induces a spin current. We show that since the spin current itself produces an electric field, this implies existence of inductance and electromotive force when the spin current changes with time. The relations between the electromotive force and the corresponding flux, which is a vector calculated by the cross product of electric field and the trajectory of the device, are clarified. The relativistic origin generally renders an extremely small inductance, which indicates the advantage of spin current in building low inductance devices. The same argument also explains the inductance due to electric dipole current and applies to physical dipoles consist of polarized bound charges.

  18. DEEP WATER ISOTOPIC CURRENT ANALYZER

    DOE Patents [OSTI]

    Johnston, W.H.

    1964-04-21

    A deepwater isotopic current analyzer, which employs radioactive isotopes for measurement of ocean currents at various levels beneath the sea, is described. The apparatus, which can determine the direction and velocity of liquid currents, comprises a shaft having a plurality of radiation detectors extending equidistant radially therefrom, means for releasing radioactive isotopes from the shaft, and means for determining the time required for the isotope to reach a particular detector. (AEC)

  19. Current Electric | Open Energy Information

    Open Energy Info (EERE)

    Jump to: navigation, search Name: Current Electric Region: United States Sector: Marine and Hydrokinetic This company is listed in the Marine and Hydrokinetic Technology...

  20. Current | OpenEI Community

    Open Energy Info (EERE)

    Submitted by Ocop(5) Member 15 July, 2014 - 07:07 MHK LCOE Reporting Guidance Draft Cost Current DOE LCOE numerical modeling Performance Tidal Wave To normalize competing...

  1. Current Awards | National Nuclear Security Administration

    National Nuclear Security Administration (NNSA)

    Stewardship Science Academic Alliances Program Current Awards Current Awards Stewardship Science Academic Alliances (SSAA) Program Current Awards Under Construction

  2. Current Awards | National Nuclear Security Administration

    National Nuclear Security Administration (NNSA)

    National Laser User Facilities Program Current Awards Current Awards National Laser Users' Facility Grant Program Current Awards Under Construction

  3. Current Communications Needs | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Current Communications Needs Current Communications Needs Oncor Electric Delivery chart of current communications needs PDF icon Current Communications Needs More Documents & ...

  4. Property:CurrentMeasurement | Open Energy Information

    Open Energy Info (EERE)

    Type String Description MHK Current Measurement Categories Used in FormTemplate MHKSensor & MHKInstrument Allows Values Current Statistics (Current);Turbulence (Current);1D...

  5. Anomalous-viscosity current drive

    DOE Patents [OSTI]

    Stix, T.H.; Ono, M.

    1986-04-25

    The present invention relates to a method and apparatus for maintaining a steady-state current for magnetically confining the plasma in a toroidal magnetic confinement device using anomalous viscosity current drive. A second aspect of this invention relates to an apparatus and method for the start-up of a magnetically confined toroidal plasma.

  6. METHOD OF PEAK CURRENT MEASUREMENT

    DOE Patents [OSTI]

    Baker, G.E.

    1959-01-20

    The measurement and recording of peak electrical currents are described, and a method for utilizing the magnetic field of the current to erase a portion of an alternating constant frequency and amplitude signal from a magnetic mediums such as a magnetic tapes is presented. A portion of the flux from the current carrying conductor is concentrated into a magnetic path of defined area on the tape. After the current has been recorded, the tape is played back. The amplitude of the signal from the portion of the tape immediately adjacent the defined flux area and the amplitude of the signal from the portion of the tape within the area are compared with the amplitude of the signal from an unerased portion of the tape to determine the percentage of signal erasure, and thereby obtain the peak value of currents flowing in the conductor.

  7. Ocean current wave interaction study

    SciTech Connect (OSTI)

    Hayes, J.G.

    1980-09-20

    A numerical model has been developed to incorporate refraction of ocean surface gravity waves by major ocean currents. The model is initialized with directional wave spectra and verified with aircraft synthetic aperture radar X band spectra, laser profilometer spectra, and pitch and roll buoy data. Data collected during the Marineland test experiment are used as surface truth observations for the wave-current study. Evidence of Gulf Stream refraction and trapping of surface waves as well as caustics in the current is shown and modeled assuming a nonuniform Gulf Stream distribution. Frequency and directional resolution of the wave spectral distribution and the current refraction patterns illustrates the need for further study of ocean current-wave interaction in wave refraction studies.

  8. Passive fault current limiting device

    DOE Patents [OSTI]

    Evans, D.J.; Cha, Y.S.

    1999-04-06

    A passive current limiting device and isolator is particularly adapted for use at high power levels for limiting excessive currents in a circuit in a fault condition such as an electrical short. The current limiting device comprises a magnetic core wound with two magnetically opposed, parallel connected coils of copper, a high temperature superconductor or other electrically conducting material, and a fault element connected in series with one of the coils. Under normal operating conditions, the magnetic flux density produced by the two coils cancel each other. Under a fault condition, the fault element is triggered to cause an imbalance in the magnetic flux density between the two coils which results in an increase in the impedance in the coils. While the fault element may be a separate current limiter, switch, fuse, bimetal strip or the like, it preferably is a superconductor current limiter conducting one-half of the current load compared to the same limiter wired to carry the total current of the circuit. The major voltage during a fault condition is in the coils wound on the common core in a preferred embodiment. 6 figs.

  9. Passive fault current limiting device

    DOE Patents [OSTI]

    Evans, Daniel J.; Cha, Yung S.

    1999-01-01

    A passive current limiting device and isolator is particularly adapted for use at high power levels for limiting excessive currents in a circuit in a fault condition such as an electrical short. The current limiting device comprises a magnetic core wound with two magnetically opposed, parallel connected coils of copper, a high temperature superconductor or other electrically conducting material, and a fault element connected in series with one of the coils. Under normal operating conditions, the magnetic flux density produced by the two coils cancel each other. Under a fault condition, the fault element is triggered to cause an imbalance in the magnetic flux density between the two coils which results in an increase in the impedance in the coils. While the fault element may be a separate current limiter, switch, fuse, bimetal strip or the like, it preferably is a superconductor current limiter conducting one-half of the current load compared to the same limiter wired to carry the total current of the circuit. The major voltage during a fault condition is in the coils wound on the common core in a preferred embodiment.

  10. Current balancing for battery strings

    DOE Patents [OSTI]

    Galloway, James H.

    1985-01-01

    A battery plant is described which features magnetic circuit means for balancing the electrical current flow through a pluraliircuitbattery strings which are connected electrically in parallel. The magnetic circuit means is associated with the battery strings such that the conductors carrying the electrical current flow through each of the battery strings pass through the magnetic circuit means in directions which cause the electromagnetic fields of at least one predetermined pair of the conductors to oppose each other. In an alternative embodiment, a low voltage converter is associated with each of the battery strings for balancing the electrical current flow through the battery strings.

  11. Current Awards | National Nuclear Security Administration

    National Nuclear Security Administration (NNSA)

    Current Awards Stewardship Science Academic Alliances (SSAA) Program Current Awards Under Construction

  12. Current Awards | National Nuclear Security Administration

    National Nuclear Security Administration (NNSA)

    Current Awards National Laser Users' Facility Grant Program Current Awards Under Construction

  13. DTE Energy- Solar Currents Program

    Broader source: Energy.gov [DOE]

    Note: The Solar Currents program has fulfilled phase two of the pilot program of additional 2 megawatts of customer-owned solar projects by 2015, and is no longer accepting applications. 

  14. LANSCE Beam Current Limiter (XL)

    SciTech Connect (OSTI)

    Gallegos, F.R.; Hall, M.J.

    1997-01-01

    The Radiation Security System (RSS) at the Los Alamos Neutron Science Center (LANSCE) is an engineered safety system that provides personnel protection from prompt radiation due to accelerated proton beams. The Beam Current Limiter (XL), as an active component of the RSS, limits the maximum average current in a beamline, thus the current available for a beam spill accident. Exceeding the pre-set limit initiates action by the RSS to mitigate the hazard (insertion of beam stoppers in the low energy beam transport). The beam limiter is an electrically isolated, toroidal transformer and associated electronics. The device was designed to continuously monitor beamline currents independent of any external timing. Fail-safe operation was a prime consideration in its development. Fail-safe operation is defined as functioning as intended (due to redundant circuitry), functioning with a more sensitive fault threshold, or generating a fault condition. This report describes the design philosophy, hardware, implementation, operation, and limitations of the device.

  15. Magneto-optic current sensor

    DOE Patents [OSTI]

    Lanagan, Michael T.; Valsko-Vlasov, Vitalii K.; Fisher, Brandon L.; Welp, Ulrich

    2003-10-07

    An optical current transducer configured to sense current in the conductor is disclosed. The optical current transducer includes a light source and a polarizer that generates linearly polarized light received from a the light source. The light is communicated to a magneto-optic garnet that includes, among other elements, bismuth, iron and oxygen and is coupled to the conductor. The magneto-optic garnet is configured to rotate the polarization of the linearly polarized light received from the polarizer. The optical current transducer also includes an analyzer in optical communication with the magneto-optic garnet. The analyzer detects the rotation of the linearly polarized light caused by the magneto-optic garnet.

  16. Monitoring Current, Voltage and Power

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Monitoring Current, Voltage and Power in Photovoltaic Systems Anton Driesse 1 , Joshua S. Stein 2 , Daniel Riley 2 , Craig Carmignani 2 1 PV Performance Labs, Freiburg, Germany 2 Sandia National Laboratories, Albuquerque, New Mexico Abstract - Accurate photovoltaic system performance monitoring is critical for profitable long-term operation. Irradiance, temperature, power, current and voltage signals contain rapid fluctuations that are not observable by typical monitoring systems. Nevertheless

  17. electromagnetics, eddy current, computer codes

    Energy Science and Technology Software Center (OSTI)

    2002-03-12

    TORO Version 4 is designed for finite element analysis of steady, transient and time-harmonic, multi-dimensional, quasi-static problems in electromagnetics. The code allows simulation of electrostatic fields, steady current flows, magnetostatics and eddy current problems in plane or axisymmetric, two-dimensional geometries. TORO is easily coupled to heat conduction and solid mechanics codes to allow multi-physics simulations to be performed.

  18. Sexual Function in Males After Radiotherapy for Rectal Cancer

    SciTech Connect (OSTI)

    Bruheim, Kjersti, E-mail: Kjersti.bruheim@medisin.uio.n [Oslo University Hospital, Ulleval Cancer Centre, Oslo (Norway); Guren, Marianne G. [Oslo University Hospital, Ulleval Cancer Centre, Oslo (Norway); Dahl, Alv A. [Oslo University Hospital, Department of Clinical Cancer Research, the Norwegian Radium Hospital, Oslo (Norway); Faculty of Medicine, University of Oslo, Oslo (Norway); Skovlund, Eva [School of Pharmacy, University of Oslo, Oslo (Norway); Balteskard, Lise [University Hospital of Northern Norway, Tromso (Norway); Carlsen, Erik [Oslo University Hospital, Department of Gastrointestinal Surgery, Ulleval, Oslo (Norway); Fossa, Sophie D. [Oslo University Hospital, Department of Clinical Cancer Research, the Norwegian Radium Hospital, Oslo (Norway); Faculty of Medicine, University of Oslo, Oslo (Norway); Tveit, Kjell Magne [Oslo University Hospital, Ulleval Cancer Centre, Oslo (Norway); Faculty of Medicine, University of Oslo, Oslo (Norway)

    2010-03-15

    Purpose: Knowledge of sexual problems after pre- or postoperative radiotherapy (RT) with 50 Gy for rectal cancer is limited. In this study, we aimed to compare self-rated sexual functioning in irradiated (RT+) and nonirradiated (RT-) male patients at least 2 years after surgery for rectal cancer. Methods and Materials: Patients diagnosed with rectal cancer from 1993 to 2003 were identified from the Norwegian Rectal Cancer Registry. Male patients without recurrence at the time of the study. The International Index of Erectile Function, a self-rated instrument, was used to assess sexual functioning, and serum levels of serum testosterone were measured. Results: Questionnaires were returned from 241 patients a median of 4.5 years after surgery. The median age was 67 years at survey. RT+ patients (n = 108) had significantly poorer scores for erectile function, orgasmic function, intercourse satisfaction, and overall satisfaction with sex life compared with RT- patients (n = 133). In multiple age-adjusted analysis, the odds ratio for moderate-severe erectile dysfunction in RT+ patients was 7.3 compared with RT- patients (p <0.001). Furthermore, erectile dysfunction of this degree was associated with low serum testosterone (p = 0.01). Conclusion: RT for rectal cancer is associated with significant long-term effects on sexual function in males.

  19. Variable current speed controller for eddy current motors

    DOE Patents [OSTI]

    Gerth, H.L.; Bailey, J.M.; Casstevens, J.M.; Dixon, J.H.; Griffith, B.O.; Igou, R.E.

    1982-03-12

    A speed control system for eddy current motors is provided in which the current to the motor from a constant frequency power source is varied by comparing the actual motor speed signal with a setpoint speed signal to control the motor speed according to the selected setpoint speed. A three-phase variable voltage autotransformer is provided for controlling the voltage from a three-phase power supply. A corresponding plurality of current control resistors is provided in series with each phase of the autotransformer output connected to inputs of a three-phase motor. Each resistor is connected in parallel with a set of normally closed contacts of plurality of relays which are operated by control logic. A logic circuit compares the selected speed with the actual motor speed obtained from a digital tachometer monitoring the motor spindle speed and operated the relays to add or substract resistance equally in each phase of the motor input to vary the motor current to control the motor at the selected speed.

  20. Geothermal Technologies Office Current Outlook | Department of...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Current Outlook Geothermal Technologies Office Current Outlook PDF icon 2015 GRC GTO ... GRC Annual Meeting 2015 Presentation: GTO Current Outlook Geothermal Technologies Office ...

  1. Force As A Momentum Current

    SciTech Connect (OSTI)

    Munera, Hector A.

    2010-07-28

    Advantages of a neo-Cartesian approach to classical mechanics are noted. If conservation of linear momentum is the fundamental principle, Newton's three laws become theorems. A minor paradox in static Newtonian mechanics is identified, and solved by reinterpreting force as a current of momentum. Contact force plays the role of a mere midwife in the exchange of momentum; however, force cannot be eliminated from physics because it provides the numerical value for momentum current. In this sense, in a neo-Cartesian formulation of mechanics the concept of force becomes strengthened rather than weakened.

  2. Eddy current thickness measurement apparatus

    DOE Patents [OSTI]

    Rosen, Gary J.; Sinclair, Frank; Soskov, Alexander; Buff, James S.

    2015-06-16

    A sheet of a material is disposed in a melt of the material. The sheet is formed using a cooling plate in one instance. An exciting coil and sensing coil are positioned downstream of the cooling plate. The exciting coil and sensing coil use eddy currents to determine a thickness of the solid sheet on top of the melt.

  3. High critical current superconducting tapes

    DOE Patents [OSTI]

    Holesinger, Terry G. (Los Alamos, NM); Jia, Quanxi (Los Alamos, NM); Foltyn, Stephen R. (Los Alamos, NM)

    2003-09-23

    Improvements in critical current capacity for superconducting film structures are disclosed and include the use of a superconducting RE-BCO layer including a mixture of rare earth metals, e.g., yttrium and europium, where the ratio of yttrium to europium in the RE-BCO layer ranges from about 3 to 1 to from about 1.5 to 1.

  4. Current Mode Logic Fan Out

    Energy Science and Technology Software Center (OSTI)

    2011-05-07

    Current mode logic is used in high speed timing systems for particle accelerators due to the fast rise time of the electrical signal. This software provides the necessary documentation to produce multiple copies of a single input for distribution to multiple devices. This software supports the DOE mission by providing a method for producing high speed signals in accelerator timing systems.

  5. Current Obsession: AC/DC

    Broader source: Energy.gov [DOE]

    Though humans have been harnessing water to perform work for thousands of years, the evolution of modern hydropower began in the late 1800’s–coincidentally at the same time that Thomas Edison and Nikola Tesla were embroiled in a battle now known as the War of the Currents.

  6. Current responsive devices for synchronous generators

    DOE Patents [OSTI]

    Karlicek, Robert F.

    1983-01-01

    A device for detecting current imbalance between phases of a polyphase alternating current generator. A detector responds to the maximum peak current in the generator, and detecting means generates an output for each phase proportional to the peak current of each phase. Comparing means generates an output when the maximum peak current exceeds the phase peak current.

  7. Current responsive devices for synchronous generators

    DOE Patents [OSTI]

    Karlicek, R.F.

    1983-09-27

    A device for detecting current imbalance between phases of a polyphase alternating current generator. A detector responds to the maximum peak current in the generator, and detecting means generates an output for each phase proportional to the peak current of each phase. Comparing means generates an output when the maximum peak current exceeds the phase peak current. 11 figs.

  8. For current viewing resistor loads

    DOE Patents [OSTI]

    Lyons, Gregory R.; Hass, Jay B.

    2011-04-19

    The invention comprises a terminal unit for a flat cable comprising a BNC-PCB connector having a pin for electrically contacting one or more conducting elements of a flat cable, and a current viewing resistor having an opening through which the pin extends and having a resistor face that abuts a connector face of the BNC-PCB connector, wherein the device is a terminal unit for the flat cable.

  9. High PRF high current switch

    DOE Patents [OSTI]

    Moran, Stuart L.; Hutcherson, R. Kenneth

    1990-03-27

    A triggerable, high voltage, high current, spark gap switch for use in pu power systems. The device comprises a pair of electrodes in a high pressure hydrogen environment that is triggered by introducing an arc between one electrode and a trigger pin. Unusually high repetition rates may be obtained by undervolting the switch, i.e., operating the trigger at voltages much below the self-breakdown voltage of the device.

  10. Current Students | The Ames Laboratory

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Current Students Ames Laboratory's spring 2016 Science Undergraduate Laboratory Internship (SULI) students began their program with the start of spring semester. The students are Timothy Hackett and Kathryn White. Welcome 2016 spring semester Science Undergraduate Laboratory Internship (SULI) students. During your 16-week internship, we are focused on your success! Our students receive guidance from PhD scientist/mentors and work in an exciting research environment alongside scientists, post

  11. Repeated in utero and lactational 2,3,7,8-tetrachlorodibenzo-p-dioxin exposure affects male gonads in offspring, leading to sex ratio changes in F{sub 2} progeny

    SciTech Connect (OSTI)

    Ikeda, Masahiko . E-mail: ikedam@ys2.u-shizuoka-ken.ac.jp; Tamura, Masashi; Yamashita, Junko; Suzuki, Chinatsu; Tomita, Takako

    2005-08-15

    The effects of in utero and lactational 2,3,7,8-tetrachlorodibenzo-p-dioxin (TCDD) on the reproductive system of male rat offspring (F{sub 1}) and the sex ratio of the subsequent generation (F{sub 2}) were examined. Female Holtzman rats were gavaged with an initial loading dose of 400 ng/kg TCDD prior to mating, followed by weekly maintenance doses of 80 ng/kg during mating, pregnancy, and the lactation period. Maternal exposure to TCDD had no significant effects on fetus/pup (F{sub 1}) mortality, litter size, or sex ratio on gestation day (GD) 20 or postnatal day (PND) 2. The TCDD concentration in maternal livers and adipose tissue on GD20 was 1.21 and 1.81 ng/kg, respectively, and decreased at weaning to 0.72 in the liver and 0.84 in the adipose tissue. In contrast, the TCDD concentration in pup livers was 1.32 ng/kg on PND2 and increased to 1.80 ng/kg at weaning. Ventral prostate weight of male offspring was significantly decreased by TCDD exposure on PND28 and 120 compared with that of controls. Weight of the testes, cauda epididymides, and seminal vesicle, and sperm number in the cauda epididymis were not changed by TCDD exposure at PND120. TCDD- or vehicle-exposed male offspring were mated with unexposed females. The sex ratio (percentage of male pups) of F{sub 2} offspring was significantly reduced in the TCDD-exposed group compared with controls. These results suggest that in utero and lactational TCDD exposures affect the development of male gonads in offspring (F{sub 1}), leading to changes in the sex ratio of the subsequent generation (F{sub 2})

  12. High-dose radioiodine treatment for differentiated thyroid carcinoma is not associated with change in female fertility or any genetic risk to the offspring

    SciTech Connect (OSTI)

    Bal, Chandrasekhar . E-mail: csbal@hotmail.com; Kumar, Ajay; Tripathi, Madhavi; Chandrashekar, Narayana; Phom, Hentok; Murali, Nadig R.; Chandra, Prem; Pant, Gauri S.

    2005-10-01

    Background: We tried to evaluate the female fertility and genetic risk to the offspring from the exposure to high-dose {sup 131}I by assessing the pregnancy outcomes and health status of the children of female patients with differentiated thyroid cancer who had received therapeutic doses of {sup 131}I. Materials and Methods: From 1967 to 2002, a total of 1,282 women had been treated with {sup 131}I. Of these patients, 692 (54%) were in the reproductive age group (18-45 years). Forty women had a total of 50 pregnancies after high-dose {sup 131}I. Age at presentation ranged from 16 to 36 years (mean, 23 {+-} 4 years). Histopathology was papillary thyroid cancer in 32 cases and follicular thyroid cancer in 8 cases. Results: Single high-dose therapy was given in 30 cases, 2 doses were given in 7 cases, 3 doses were given in 2 cases, and four doses were given in 1 case in which lung metastases had occurred. In 37 patients (92%), disease was successfully ablated before pregnancy. Ovarian absorbed-radiation dose calculated by the MIRD method ranged from 3.5 to 60 cGy (mean, 12 {+-} 11 cGy). The interval between {sup 131}I therapy and pregnancy varied from 7 to 120 months (37.4 {+-} 28.2 months). Three spontaneous abortions occurred in 2 women. Forty-seven babies (20 females and 27 males) were born. Forty-four babies were healthy with normal birth weight and normal developmental milestones. Twenty women delivered their first baby after {sup 131}I therapy. The youngest child in our series is 11 months of age, and the oldest is 8.5 years of age. Conclusions: Female fertility is not affected by high-dose radioiodine treatment, and the therapy does not appear to be associated with any genetic risks to the offspring.

  13. High current capacity electrical connector

    DOE Patents [OSTI]

    Bettis, Edward S.; Watts, Harry L.

    1976-01-13

    An electrical connector is provided for coupling high current capacity electrical conductors such as copper busses or the like. The connector is arranged in a "sandwiched" configuration in which a conductor plate contacts the busses along major surfaces thereof clamped between two stainless steel backing plates. The conductor plate is provided with a plurality of contact buttons affixed therein in a spaced array such that the caps of the buttons extend above the conductor plate surface to contact the busses. When clamping bolts provided through openings in the sandwiched arrangement are tightened, Belleville springs provided under the rim of each button cap are compressed and resiliently force the caps into contact with the busses' contacting surfaces to maintain a predetermined electrical contact area provided by the button cap tops. The contact area does not change with changing thermal or mechanical stresses applied to the coupled conductors.

  14. Rotating concave eddy current probe

    DOE Patents [OSTI]

    Roach, Dennis P. (Albuquerque, NM); Walkington, Phil (Albuquerque, NM); Rackow, Kirk A. (Albuquerque, NM); Hohman, Ed (Albuquerque, NM)

    2008-04-01

    A rotating concave eddy current probe for detecting fatigue cracks hidden from view underneath the head of a raised head fastener, such as a buttonhead-type rivet, used to join together structural skins, such as aluminum aircraft skins. The probe has a recessed concave dimple in its bottom surface that closely conforms to the shape of the raised head. The concave dimple holds the probe in good alignment on top of the rivet while the probe is rotated around the rivet's centerline. One or more magnetic coils are rigidly embedded within the probe's cylindrical body, which is made of a non-conducting material. This design overcomes the inspection impediment associated with widely varying conductivity in fastened joints.

  15. Underwater slow current turbo generator

    SciTech Connect (OSTI)

    Wracsaricht, L.J.

    1981-12-15

    A self-contained electrical generating device for placement in a naturally flowing stream. The generating device converts the kinetic energy generated by fluid flow or gravity contained within the flowing stream whether river or ocean current into useful electric energy using blade configuration and placement to maximize the usable energy. The present invention also using auxiliary means to increase the rate of flow of the fluid by the blades of the generator thus increasing the energy capable of conversion. The rotor and the stator are located radially outwardly from the rotating hub of the generating system and are supported by spoke like legs thus greatly reducing any resistance to water flow, minimizing the disturbance to the flowing stream and maximizing the relative linear velocity between the rotor and the stator.

  16. HIGH CURRENT COAXIAL PHOTOMULTIPLIER TUBE

    DOE Patents [OSTI]

    Glass, N.W.

    1960-01-19

    A medium-gain photomultiplier tube having high current output, fast rise- time, and matched output impedance was developed. The photomultiplier tube comprises an elongated cylindrical envelope, a cylindrical anode supported at the axis of the envelope, a plurality of elongated spaced opaque areas on the envelope, and a plurality of light admitting windows. A photo-cathode is supported adjacent to each of the windows, and a plurality of secondary emissive dynodes are arranged in two types of radial arrays which are alternately positioned to fill the annular space between the anode and the envelope. The dynodes are in an array being radially staggered with respect to the dynodes in the adjacent array, the dynodes each having a portion arranged at an angle with respect to the electron path, such that electrons emitted by each cathode undergo multiplication upon impingement on a dynode and redirected flight to the next adjacent dynode.

  17. Natural Currents Energy Group | Open Energy Information

    Open Energy Info (EERE)

    Natural Currents Energy Group Jump to: navigation, search Name: Natural Currents Energy Group Place: New York Sector: Hydro, Ocean, Renewable Energy, Solar, Wind energy Product:...

  18. Current Group LLC | Open Energy Information

    Open Energy Info (EERE)

    Group LLC Jump to: navigation, search Name: Current Group, LLC Place: Germantown, Maryland Zip: 20874 Sector: Services Product: Current provides electric utilities with smart grid...

  19. Hydrogen Storage - Current Technology | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Storage - Current Technology Hydrogen Storage - Current Technology Hydrogen storage is a ... for the full platform of light-duty automotive vehicles using fuel cell power plants. ...

  20. Current work in energy analysis

    SciTech Connect (OSTI)

    1998-03-01

    This report describes the work performed at Berkeley Lab most recently. One of the Labs accomplishments is the publication of Scenarios of US Carbon Reductions, an analysis of the potential of energy technologies to reduce carbon emissions in the US. This analysis is described and played a key role in shaping the US position on climate change in the Kyoto Protocol negotiations. The Labs participation in the fundamental characterization of the climate change issue by the IPCC is described. Described also is a study of leaking electricity, which is stimulating an international campaign for a one-watt ceiling for standby electricity losses from appliances. This ceiling has the potential to save two-thirds of the 5% of US residential electricity currently expended on standby losses. The 54 vignettes contained in the report summarize results of research activities ranging in scale from calculating the efficacy of individual lamp ballasts to estimating the cost-effectiveness of the national Energy Star{reg_sign} labeling program, and ranging in location from a scoping study of energy-efficiency market transformation in California to development of an energy-efficiency project in the auto parts industry in Shandong Province, China.

  1. Female Pelvic Vein Embolization: Indications, Techniques, and Outcomes

    SciTech Connect (OSTI)

    Lopez, Anthony James

    2015-08-15

    Until recently, the main indication for pelvic vein embolization (PVE) in women was to treat pelvic venous congestion syndrome (PVC) but increasingly, patients with refluxing pelvic veins associated with leg varicosities are also being treated. A more unusual reason for PVE is to treat pelvic venous malformations, although such lesions may be treated with sclerotherapy alone. Embolotherapy for treating PVC has been performed for many years with several published studies included in this review, whilst an emerging indication for PVE is to treat lower limb varicosities associated with pelvic vein reflux. Neither group, however, has been subjected to an adequate randomized, controlled trial. Consequently, some of the information presented in this review should be considered anecdotal (level III evidence) at this stage, and a satisfactory ‘proof’ of clinical efficacy remains deficient until higher-level evidence is presented. Furthermore, a wide range of techniques not accepted by all are used, and some standardization will be required based on future mandatory prospective studies. Large studies have also clearly shown an unacceptably high recurrence rate of leg varicose veins following venous surgery. Furthermore, minimally or non-invasive imaging is now revealing that there is a refluxing pelvic venous source in a significant percentage of women with de novo leg varicose veins, and many more with recurrent varicosities. Considering that just over half the world’s population is female and a significant number of women not only have pelvic venous reflux, but also have associated leg varicosities, minimally invasive treatment of pelvic venous incompetence will become a common procedure.

  2. Ocean current resource assessment | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Ocean current resource assessment Ocean current resource assessment Ocean current resource assessment Office presentation icon 45_ocean_resource_gtrc_haas.ppt More Documents & Publications Tidal Energy Resource Assessment Free Flow Energy (TRL 1 2 3 Component) - Design and Development of a Cross-Platform Submersible Generator Optimized for the Conditions of Current Energy Conversion

  3. Current Long-Term Operating Schedule

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Current Long-Term Operating Schedule Print This schedule is also available as an .xls spreadsheet.

  4. Current Long-Term Operating Schedule

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Current Long-Term Operating Schedule Print This schedule is also available as an .xls spreadsheet.

  5. Current Long-Term Operating Schedule

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Current Long-Term Operating Schedule Print This schedule is also available as an .xls spreadsheet.

  6. ELECTROMIGRATION ISSUES IN HIGH CURRENT HORN.

    SciTech Connect (OSTI)

    ZHANG, S.Y.; BELLAVIA, S.; SANDBERG, J.; ET AL.

    2005-05-16

    The secondary particle focusing horn for the AGS neutrino experiment proposal is a high current and high current density device. The peak current of horn is 300 kA. At the smallest area of horn, the current density is near 8 kA/mm{sup 2}. At very high current density, a few kA/mm{sup 2}, the electromigration phenomena will occur. Momentum transfer between electrons and metal atoms at high current density causes electromigration. The reliability and lifetime of focusing horn can be severely reduced by electromigration. In this paper, we discuss issues such as device reliability model, incubation time of electromigration, and lifetime of horn.

  7. A Current Perspective on Photocatalysis

    SciTech Connect (OSTI)

    Fujita, E.; Muckerman, J.T.; Domen, K.

    2011-02-18

    The efficient conversion of solar photons into solar electricity and solar fuels is one of the most important scientific challenges of this century owing to dwindling fossil fuel reserves and the need for clean energy. While research in the direct conversion of solar energy to electricity in the areas of low-cost photovoltaic (PV) systems based on all-inorganic semiconductors, dye-sensitized solar cells, organic, and molecular PV is more technically advanced than its direct conversion to fuels, electricity may not be the ultimate primary solar energy conversion choice owing to the intermittence of solar radiation, the considerable energy loss during transmission, the availability of cost-effective storage media for electricity, and the continuing need for liquid transportation fuels. On the other hand, the direct conversion of solar photons to fuels such as H{sub 2}, CO, alcohols, and hydrocarbons using H{sub 2}O and CO{sub 2} as feedstocks offers a solution for the storage and distribution of solar energy in the form of stable chemical bonds that can be activated to provide energy at arbitrary times and locations. The latter approach to photocatalysis is generally called artificial photosynthesis, and has received renewed interest over the past five or so years. While 'photocatalysis' has not traditionally been restricted to the generation of 'solar fuels,' and has included the production of other useful chemicals, polymerization, and environmental remediation applications, the recent upsurge of interest has been driven mostly by renewable energy issues. It was the pioneering work on photo-electrochemical splitting of water to H{sub 2} and O{sub 2} by n-type TiO{sub 2} using ultraviolet light, by Fujishima and Honda in 1972, that ushered in the area of research that has come to be known as 'solar fuels,' and that has led to the terms 'photocatalysis' and 'solar fuels' becoming almost synonymous. This special issue of ChemSusChem is devoted to providing a current perspective on the field of photocatalysis. It contains invited papers from leading researchers in a wide range of important aspects of the field that address materials, photophysical, photochemical, and electrocatalysis issues. The area remains primarily the domain of basic research studies because progress toward the promise offered by the early work has (at least until recently) been slow, despite its significance having become increasingly recognized. The present collection of papers deals with new semiconductor photocatalysts, molecular catalysts for hydrogen production and water oxidation, dye-sensitized photoelectrochemical cells, and electrochemical CO{sub 2} reduction. Overall photochemical water splitting without any applied bias potential is achieved in several systems, especially under UV irradiation. Further advances are also achieved in a few semiconductor systems, such as GaZn oxynitrides or two-step (so-called 'Z-scheme') systems to produce H{sub 2} and O{sub 2} without any sacrificial reagent under visible irradiation. When band gaps of semiconductors are narrowed to absorb more visible light for greater efficiency, or when band positions are not suitable for carrying out one-electron redox processes, multielectron catalysts are required to promote proton-coupled electron transfer reactions in producing solar fuels. In homogeneous photocatalysis systems, sacrificial reagents are typically used to investigate the catalytic activity, detailed kinetics, and mechanisms of a half reaction. Photoelectrolysis systems with immobilized catalysts (metals, metal oxides, or molecular catalysts) on electrodes can separate oxidized products, such as O{sub 2}, and reduced products, such as H{sub 2}, CO, CH{sub 3}OH, and others, by means of proton- or hydroxide-conducting membranes. The following paragraphs briefly summarize these contributions. In the area of UV-driven water splitting, Townsend et al. prepared Pt-and/or IrO{sub x}-coated niobate (Nb{sub 6}O{sub 17}{sup 4-}) nanoscrolls and tested photochemical water reduction with methanol as a sacrificial rea

  8. Fluorochemicals used in food packaging inhibit male sex hormone synthesis

    SciTech Connect (OSTI)

    Rosenmai, A.K.; Nielsen, F.K.; Pedersen, M.; Hadrup, N.; Trier, X.; Christensen, J.H.; Vinggaard, A.M.

    2013-01-01

    Polyfluoroalkyl phosphate surfactants (PAPS) are widely used in food contact materials (FCMs) of paper and board and have recently been detected in 57% of investigated materials. Human exposure occurs as PAPS have been measured in blood; however knowledge is lacking on the toxicology of PAPS. The aim of this study was to elucidate the effects of six fluorochemicals on sex hormone synthesis and androgen receptor (AR) activation in vitro. Four PAPS and two metabolites, perfluorooctanoic acid (PFOA) and 8:2 fluorotelomer alcohol (8:2 FTOH) were tested. Hormone profiles, including eight steroid hormones, generally showed that 8:2 diPAPS, 8:2 monoPAPS and 8:2 FTOH led to decreases in androgens (testosterone, dehydroepiandrosterone, and androstenedione) in the H295R steroidogenesis assay. Decreases were observed for progesterone and 17-OH-progesterone as well. These observations indicated that a step prior to progestagen and androgen synthesis had been affected. Gene expression analysis of StAR, Bzrp, CYP11A, CYP17, CYP21 and CYP19 mRNA showed a decrease in Bzrp mRNA levels for 8:2 monoPAPS and 8:2 FTOH indicating interference with cholesterol transport to the inner mitochondria. Cortisol, estrone and 17β-estradiol levels were in several cases increased with exposure. In accordance with these data CYP19 gene expression increased with 8:2 diPAPS, 8:2 monoPAPS and 8:2 FTOH exposures indicating that this is a contributing factor to the decreased androgen and the increased estrogen levels. Overall, these results demonstrate that fluorochemicals present in food packaging materials and their metabolites can affect steroidogenesis through decreased Bzrp and increased CYP19 gene expression leading to lower androgen and higher estrogen levels. -- Highlights: ► Fluorochemicals found in 57% of paper and board food packaging were tested. ► Collectively six fluorochemicals were tested for antiandrogenic potential in vitro. ► Three out of six tested fluorochemicals inhibited synthesis of male sex hormones. ► Generally, levels of estrogens and cortisol stayed unaffected or increased. ► The effect on steroid synthesis was specific on gene expression of Bzrp and CYP19.

  9. Current DOE and OSHA VPP Sites

    Broader source: Energy.gov [DOE]

    Need to know which sites are current DOE-VPP or OSHA VPP Sites? The link, below, will take you to a Voluntary Protection Programs Participant's Association web page where you may search for current...

  10. current energy | OpenEI Community

    Open Energy Info (EERE)

    current energy Home Kch's picture Submitted by Kch(24) Member 15 July, 2014 - 07:07 MHK Cost Breakdown Structure Draft CBS current energy GMREC LCOE levelized cost of energy marine...

  11. Apparatus and method for critical current measurements

    DOE Patents [OSTI]

    Martin, Joe A.; Dye, Robert C.

    1992-01-01

    An apparatus for the measurement of the critical current of a superconductive sample, e.g., a clad superconductive sample, the apparatus including a conductive coil, a means for maintaining the coil in proximity to a superconductive sample, an electrical connection means for passing a low amplitude alternating current through the coil, a cooling means for maintaining the superconductive sample at a preselected temperature, a means for passing a current through the superconductive sample, and, a means for monitoring reactance of the coil, is disclosed, together with a process of measuring the critical current of a superconductive material, e.g., a clad superconductive material, by placing a superconductive material into the vicinity of the conductive coil of such an apparatus, cooling the superconductive material to a preselected temperature, passing a low amplitude alternating current through the coil, the alternating current capable of generating a magnetic field sufficient to penetrate, e.g., any cladding, and to induce eddy currents in the superconductive material, passing a steadily increasing current through the superconductive material, the current characterized as having a different frequency than the alternating current, and, monitoring the reactance of the coil with a phase sensitive detector as the current passed through the superconductive material is steadily increased whereby critical current of the superconductive material can be observed as the point whereat a component of impedance deviates.

  12. High temperature superconducting fault current limiter

    DOE Patents [OSTI]

    Hull, J.R.

    1997-02-04

    A fault current limiter for an electrical circuit is disclosed. The fault current limiter includes a high temperature superconductor in the electrical circuit. The high temperature superconductor is cooled below its critical temperature to maintain the superconducting electrical properties during operation as the fault current limiter. 15 figs.

  13. In-line beam current monitor

    DOE Patents [OSTI]

    Ekdahl, C.A. Jr.; Frost, C.A.

    1984-11-13

    An intense relativistic electron beam current monitor for a gas neutralized beam transport line includes a first foil for conducting plasma current to the wall where it is measured as it traverses an inductive loop formed by a cavity in the wall. An insulator foil separates the first foil from a second conducting foil which returns the current to the plasma environment.

  14. In-line beam current monitor

    DOE Patents [OSTI]

    Ekdahl, Jr., Carl A.; Frost, Charles A.

    1986-01-01

    An intense relativistic electron beam current monitor for a gas neutralized beam transport line includes a first foil for conducting plasma current to the wall where it is measured as it traverses an inductive loop formed by a cavity in the wall. An insulator foil separates the first foil from a second conducting foil which returns the current to the plasma environment.

  15. Expert system for analyzing eddy current measurements

    DOE Patents [OSTI]

    Levy, Arthur J.; Oppenlander, Jane E.; Brudnoy, David M.; Englund, James M.; Loomis, Kent C.

    1994-01-01

    A method and apparatus (called DODGER) analyzes eddy current data for heat exchanger tubes or any other metallic object. DODGER uses an expert system to analyze eddy current data by reasoning with uncertainty and pattern recognition. The expert system permits DODGER to analyze eddy current data intelligently, and obviate operator uncertainty by analyzing the data in a uniform and consistent manner.

  16. Aquantis Ocean Current Turbine Development Project Report

    SciTech Connect (OSTI)

    Fleming, Alex J.

    2014-08-23

    The Aquantis® Current Plane (“C-Plane”) technology developed by Dehlsen Associates, LLC (DA) and Aquantis, Inc. is an ocean current turbine designed to extract kinetic energy from ocean currents. The technology is capable of achieving competitively priced base-load, continuous, and reliable power generation from a source of renewable energy not before possible in this scale or form.

  17. High temperature superconducting fault current limiter

    DOE Patents [OSTI]

    Hull, John R.

    1997-01-01

    A fault current limiter (10) for an electrical circuit (14). The fault current limiter (10) includes a high temperature superconductor (12) in the electrical circuit (14). The high temperature superconductor (12) is cooled below its critical temperature to maintain the superconducting electrical properties during operation as the fault current limiter (10).

  18. DOE - NNSA/NFO -- Current Publications

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Current Publications NNSA/NFO Language Options U.S. DOE/NNSA - Nevada Field Office Following are the current publications for the U.S. Department of Energy. Current Publications DOE_NV -- 209 Rev 16 DOE_NV -- 209 Rev 16 Print Copy Print Icon PRINT PAGE | Email Icon EMAIL PAGE Date Last Modified: January 25, 2016

  19. PUMPS FOR LIQUID CURRENT-CONDUCTING MATERIAL

    DOE Patents [OSTI]

    Watt, D.A.

    1958-12-23

    An induction-type liquid conductor pump is described wherein the induced current flow is substantially tnansverse to the flow of the liquid in the duct, thus eliminating parallel current flow that tends to cause unwanted pressures resulting in turbulence, eddy-flow, heating losses, and reduced pumping efficiency. This improvement is achieved by offering the parallel current a path of lower impedance along the duct than that offered by the liquid so that the induced currents remaining in the liquid flow in a substantially transverse directlon. Thick copper bars are brazed to the liquid duct parallel to the flow, and additional induced currents are created in the copper bars of appropriate magnitude to balance the ohmic drop ln the current paths outside of the liquid metal.

  20. Current Portfolio Awardees | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Small Business Innovation Research » Current Portfolio Awardees Current Portfolio Awardees View the current portfolio of Small Business Innovation Research and Small Business Technology Transfer awardees below. Learn more about the program phases. View the FY2016 EERE Phase I Awardees Technology-to-Market Home About the Technology-to-Market Program Cleantech University Prize Energy Transition Initiative Lab-Corps Small Business Innovation Research Eligibility Funding Phases Funding Schedule

  1. Current Rulemakings and Notices | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Appliance & Equipment Standards » Rulemakings & Notices » Current Rulemakings and Notices Current Rulemakings and Notices The Department of Energy has compiled a summary tables that link to each current rulemaking and its associated product page. Each rulemaking page: Provides an update on the most recent activity related to that rulemaking Describes the rulemaking's purpose Lists rulemaking milestones and provides links to key documents and the docket Links to any related rulemakings

  2. Current Safe Operating Practices | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Safety, Codes & Standards » Current Approaches to Safety, Codes & Standards » Current Safe Operating Practices Current Safe Operating Practices Safe operating practices are established to minimize the known hazards associated with handling hydrogen-fire, explosion, and asphyxiation. Some hazards can be mitigated by hydrogen's unique properties. For example, hydrogen's high dispersion coefficient allows it to dissipate rapidly and makes it virtually impossible for hydrogen to explode in

  3. Current generation by minority species heating

    SciTech Connect (OSTI)

    Fisch, N.J.

    1980-07-01

    It is proposed that electric currents be generated from the preferential heating of ions traveling in one direction but with no net momentum injected into the system. This can be accomplished with, for example, traveling waves in a two-ion-species plasma. The current can be generated efficiently enough for the scheme to be of interest in maintaining steady-state toroidal currents in a reactor.

  4. Hot Plasma Partial to Bootstrap Current

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Hot Plasma Partial to Bootstrap Current Hot Plasma Partial to Bootstrap Current New calculations shed light on self-generated current, which could help reduce fusion reactor costs July 9, 2014 Kathy Kincade, +1 510 495 2124, kkincade@lbl.gov Supercomputers at NERSC are helping plasma physicists "bootstrap" a potentially more affordable and sustainable fusion reaction. If successful, fusion reactors could provide almost limitless clean energy. In a fusion reaction, energy is released

  5. DNA Origami: A History and Current Perspective

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Origami: A History and Current Perspective Authors: Nangreave, J., Han, D., Liu, Y., and Yan, H. Title: DNA Origami: A History and Current Perspective Source: Current Opinion in Chemical Biology Year: 2010 Volume: 14 Pages: 608-615 ABSTRACT: Researchers have been using DNA for the rational design and construction of nanoscale objects for nearly 30 years. Recently, [`]scaffolded DNA origami' has emerged as one of the most promising assembly techniques in DNA nanotechnology with a broad range of

  6. NREL: Measurements and Characterization - Current Versus Voltage

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    of devices, including: open-circuit voltage (Voc), short-circuit current (Isc), fill factor (FF), maximum power output of the device (Pmax), voltage at maximum power...

  7. Hybrid high direct current circuit interrupter

    DOE Patents [OSTI]

    Rockot, J.H.; Mikesell, H.E.; Jha, K.N.

    1998-08-11

    A device and a method are disclosed for interrupting very high direct currents (greater than 100,000 amperes) and simultaneously blocking high voltages (greater than 600 volts). The device utilizes a mechanical switch to carry very high currents continuously with low loss and a silicon controlled rectifier (SCR) to bypass the current around the mechanical switch while its contacts are separating. A commutation circuit, connected in parallel with the SCR, turns off the SCR by utilizing a resonant circuit to divert the SCR current after the switch opens. 7 figs.

  8. Tubular solid oxide fuel cell current collector

    DOE Patents [OSTI]

    Bischoff, Brian L.; Sutton, Theodore G.; Armstrong, Timothy R.

    2010-07-20

    An internal current collector for use inside a tubular solid oxide fuel cell (TSOFC) electrode comprises a tubular coil spring disposed concentrically within a TSOFC electrode and in firm uniform tangential electrical contact with the electrode inner surface. The current collector maximizes the contact area between the current collector and the electrode. The current collector is made of a metal that is electrically conductive and able to survive under the operational conditions of the fuel cell, i.e., the cathode in air, and the anode in fuel such as hydrogen, CO, CO.sub.2, H.sub.2O or H.sub.2S.

  9. Current Hydrological Information (hydro/fcrps)

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Current Hydrological Information For general hydrological information, see the National Weather Service Northwest River Forecast Center (NWRFC) Home Page (www.nwrfc.noaa.gov) For...

  10. Theory of current-drive in plasmas

    SciTech Connect (OSTI)

    Fisch, N.J.

    1986-12-01

    The continuous operation of a tokamak fusion reactor requires, among other things, a means of providing continuous toroidal current. Such operation is preferred to the conventional pulsed operation, where the plasma current is induced by a time-varying magnetic field. A variety of methods has been proposed to provide continuous current, including methods which utilize particle beams or radio frequency waves in any of several frequency regimes. Currents as large as half a mega-amp have now been produced in the laboratory by such means, and experimentation in these techniques has now involved major tokamak facilities worldwide.

  11. Atmospheric Radiation Measurement Program Science Plan. Current...

    Office of Scientific and Technical Information (OSTI)

    Atmospheric Radiation Measurement Program Science Plan. Current Status and Future Directions of the ARM Science Program Citation Details In-Document Search Title: Atmospheric ...

  12. Current trends in the Advanced Bioindustry

    Broader source: Energy.gov [DOE]

    Afternoon Plenary Session: Current Trends in the Advanced Bioindustry State of Technology—Michael McAdams, President, Advanced Biofuels Association

  13. Natural Currents Energy Services | Open Energy Information

    Open Energy Info (EERE)

    Wiscasset Tidal Energy Plant This company is involved in the following MHK Technologies: RED HAWK Retrieved from "http:en.openei.orgwindex.php?titleNaturalCurrentsEnergySer...

  14. Hybrid high direct current circuit interrupter

    DOE Patents [OSTI]

    Rockot, Joseph H.; Mikesell, Harvey E.; Jha, Kamal N.

    1998-01-01

    A device and a method for interrupting very high direct currents (greater than 100,000 amperes) and simultaneously blocking high voltages (greater than 600 volts). The device utilizes a mechanical switch to carry very high currents continuously with low loss and a silicon controlled rectifier (SCR) to bypass the current around the mechanical switch while its contacts are separating. A commutation circuit, connected in parallel with the SCR, turns off the SCR by utilizing a resonant circuit to divert the SCR current after the switch opens.

  15. Additional Guidance Regarding Application of Current Procedures...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Additional Guidance Regarding Application of Current Procedures for Testing Energy Consumption of Clothes Washers with Warm Rinse Cycles, Issued: June 30, 2010 Additional Guidance...

  16. Temperature compensated and self-calibrated current sensor using reference current

    DOE Patents [OSTI]

    Yakymyshyn, Christopher Paul; Brubaker, Michael Allen; Yakymyshyn, Pamela Jane

    2008-01-22

    A method is described to provide temperature compensation and self-calibration of a current sensor based on a plurality of magnetic field sensors positioned around a current carrying conductor. A reference electrical current carried by a conductor positioned within the sensing window of the current sensor is used to correct variations in the output signal due to temperature variations and aging.

  17. Structural insight into the regulation of MOF in the male-specific...

    Office of Scientific and Technical Information (OSTI)

    Structural insight into the regulation of MOF in the male-specific lethal complex and the non-specific lethal complex Citation Details In-Document Search Title: Structural insight ...

  18. Metal current collect protected by oxide film

    DOE Patents [OSTI]

    Jacobson, Craig P.; Visco, Steven J.; DeJonghe, Lutgard C.

    2004-05-25

    Provided are low-cost, mechanically strong, highly electronically conductive current collects and associated structures for solid-state electrochemical devices, techniques for forming these structures, and devices incorporating the structures. The invention provides solid state electrochemical devices having as current interconnects a ferritic steel felt or screen coated with a protective oxide film.

  19. Enhancing critical current density of cuprate superconductors

    DOE Patents [OSTI]

    Chaudhari, Praveen

    2015-06-16

    The present invention concerns the enhancement of critical current densities in cuprate superconductors. Such enhancement of critical current densities include using wave function symmetry and restricting movement of Abrikosov (A) vortices, Josephson (J) vortices, or Abrikosov-Josephson (A-J) vortices by using the half integer vortices associated with d-wave symmetry present in the grain boundary.

  20. Current Postdoctoral Researchers | Argonne National Laboratory

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Current Postdocs Current Postdoctoral Researchers Name Topic - Any - General Argonne Information -Awards -Honors Energy -Energy efficiency --Vehicles ---Alternative fuels ---Automotive engineering ---Biofuels ---Diesel ---Electric drive technology ---Fuel economy ---Fuel injection ---Heavy-duty vehicles ---Hybrid & electric vehicles ---Hydrogen & fuel cells ---Internal combustion ---Maglev systems ---Powertrain research ---Vehicle testing --Building design ---Construction ---Industrial

  1. Electric field induced spin-polarized current

    DOE Patents [OSTI]

    Murakami, Shuichi; Nagaosa, Naoto; Zhang, Shoucheng

    2006-05-02

    A device and a method for generating an electric-field-induced spin current are disclosed. A highly spin-polarized electric current is generated using a semiconductor structure and an applied electric field across the semiconductor structure. The semiconductor structure can be a hole-doped semiconductor having finite or zero bandgap or an undoped semiconductor of zero bandgap. In one embodiment, a device for injecting spin-polarized current into a current output terminal includes a semiconductor structure including first and second electrodes, along a first axis, receiving an applied electric field and a third electrode, along a direction perpendicular to the first axis, providing the spin-polarized current. The semiconductor structure includes a semiconductor material whose spin orbit coupling energy is greater than room temperature (300 Kelvin) times the Boltzmann constant. In one embodiment, the semiconductor structure is a hole-doped semiconductor structure, such as a p-type GaAs semiconductor layer.

  2. Self-triggering superconducting fault current limiter

    DOE Patents [OSTI]

    Yuan, Xing; Tekletsadik, Kasegn

    2008-10-21

    A modular and scaleable Matrix Fault Current Limiter (MFCL) that functions as a "variable impedance" device in an electric power network, using components made of superconducting and non-superconducting electrically conductive materials. The matrix fault current limiter comprises a fault current limiter module that includes a superconductor which is electrically coupled in parallel with a trigger coil, wherein the trigger coil is magnetically coupled to the superconductor. The current surge doing a fault within the electrical power network will cause the superconductor to transition to its resistive state and also generate a uniform magnetic field in the trigger coil and simultaneously limit the voltage developed across the superconductor. This results in fast and uniform quenching of the superconductors, significantly reduces the burnout risk associated with non-uniformity often existing within the volume of superconductor materials. The fault current limiter modules may be electrically coupled together to form various "n" (rows).times."m" (columns) matrix configurations.

  3. Characteristics of surface current flow inferred from a global ocean current data set

    SciTech Connect (OSTI)

    Meehl, G.A.

    1982-06-01

    A seasonal global ocean-current data set (OCDS) digitized on a 5/sup 0/ grid from long-term mean shipdrift-derived currents from pilot charts is presented and described. Annual zonal means of v-component currents show subtropical convergence zones which moved closest to the equator during the respective winters in each hemisphere. Net annual v-component surface flow at the equator is northward. Zonally average u-component currents have greatest seasonal variance in the tropics with strongest westward currents in the winter hemisphere. An ensemble of ocean currents measured by buoys and current meters compares favorably with OCDS data in spite of widely varying time and space scales. The OCDS currents and directly measured currents are about twice as large as computed geostrophic currents. An analysis of equatorial Pacific currents suggests that dynamic topography and sea-level change indicative of the geostrophic flow component cannot be relied on solely to infer absolute strength of surface currents which include a strong Ekman component. Comparison of OCDS v-component currents and meridional transports predicted by Ekman theory shows agreement in the sign of transports in the midlatitudes and tropics in both hemispheres. Ekman depths required to scale OCDS v-component currents to computed Ekman transports are reasonable at most latitudes with layer depths deepening closer to the equator.

  4. Eddy current technique for predicting burst pressure

    DOE Patents [OSTI]

    Petri, Mark C.; Kupperman, David S.; Morman, James A.; Reifman, Jaques; Wei, Thomas Y. C.

    2003-01-01

    A signal processing technique which correlates eddy current inspection data from a tube having a critical tubing defect with a range of predicted burst pressures for the tube is provided. The method can directly correlate the raw eddy current inspection data representing the critical tubing defect with the range of burst pressures using a regression technique, preferably an artificial neural network. Alternatively, the technique deconvolves the raw eddy current inspection data into a set of undistorted signals, each of which represents a separate defect of the tube. The undistorted defect signal which represents the critical tubing defect is related to a range of burst pressures utilizing a regression technique.

  5. Polarized electron beams at milliampere average current

    SciTech Connect (OSTI)

    Poelker, Matthew

    2013-11-01

    This contribution describes some of the challenges associated with developing a polarized electron source capable of uninterrupted days-long operation at milliAmpere average beam current with polarization greater than 80%. Challenges will be presented in the context of assessing the required level of extrapolation beyond the performance of today's CEBAF polarized source operating at ~ 200 uA average current. Estimates of performance at higher current will be based on hours-long demonstrations at 1 and 4 mA. Particular attention will be paid to beam-related lifetime-limiting mechanisms, and strategies to construct a photogun that operate reliably at bias voltage > 350kV.

  6. Apparatus for producing voltage and current pulses

    DOE Patents [OSTI]

    Kirbie, Hugh; Dale, Gregory E.

    2010-12-21

    An apparatus having one or more modular stages for producing voltage and current pulses. Each module includes a diode charging means to charge a capacitive means that stores energy. One or more charging impedance means are connected to the diode charging means to provide a return current pathway. A solid-state switch discharge means, with current interruption capability, is connected to the capacitive means to discharge stored energy. Finally, a control means is provided to command the switching action of the solid-state switch discharge means.

  7. Transformer current sensor for superconducting magnetic coils

    DOE Patents [OSTI]

    Shen, S.S.; Wilson, C.T.

    1985-04-16

    The present invention is a current transformer for operating currents larger than 2kA (two kiloamps) that is capable of detecting a millivolt level resistive voltage in the presence of a large inductive voltage. Specifically, the present invention includes substantially cylindrical primary turns arranged to carry a primary current and substantially cylindrical secondary turns arranged coaxially with and only partially within the primary turns, the secondary turns including an active winding and a dummy winding, the active and dummy windings being coaxial, longitudinally separated and arranged to mutually cancel voltages excited by commonly experienced magnetic fields, the active winding but not the dummy winding being arranged within the primary turns.

  8. Current constriction of high-current vacuum arc in vacuum interrupters

    SciTech Connect (OSTI)

    Wang Lijun; Jia Shenli; Zhang Ling; Yang Dingge; Shi Zongqian; Gentils, Francois; Jusselin, Benoit

    2008-03-15

    Compared with previous paper [L. Wang et al., J. Appl. Phys. 100, 113304 (2006)], higher-current vacuum arc is simulated and analyzed based on magnetohydrodynamics model, and current constriction phenomenon in arc column is mainly paid attention to and analyzed in this paper. According to simulation results, it can be found that significant current constriction only appears near anode regions for lower-current vacuum arc. However, with the increase of arc current, current constriction also appears near the cathode side, and with the further increase of arc current, current constriction near the cathode side can become more significant than that near the anode side. The current constriction near the cathode side can be mainly caused by very high current level. The increase of axial magnetic field (AMF) strength will inhibit current constriction in the whole arc column. For influence of AMF distribution, saddle-shaped distributed AMF can more efficiently inhibit current constriction of arc column than bell-shaped AMF. The phenomenon of current constriction near the cathode side has also been found by many experiments, which also can verify the correctness of simulation results.

  9. Transformer current sensor for superconducting magnetic coils

    DOE Patents [OSTI]

    Shen, Stewart S.; Wilson, C. Thomas

    1988-01-01

    A transformer current sensor having primary turns carrying a primary current for a superconducting coil and secondary turns only partially arranged within the primary turns. The secondary turns include an active winding disposed within the primary turns and a dummy winding which is not disposed in the primary turns and so does not experience a magnetic field due to a flow of current in the primary turns. The active and dummy windings are wound in opposite directions or connected in series-bucking relationship, and are exposed to the same ambient magnetic field. Voltages which might otherwise develop in the active and dummy windings due to ambient magnetic fields thus cancel out. The resultant voltage is purely indicative of the rate of change of current flowing in the primary turns.

  10. Current Events | National Nuclear Security Administration

    National Nuclear Security Administration (NNSA)

    Current Events (This list is of selected events only) Date ConferencesWorkshops March 11-12, 2015 Stewardship Science Academic Programs Symposium Santa Fe, NM March 14-18, 2015 ...

  11. DOE - NNSA/NFO -- Current Films

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Films > Current Nevada Field Office Film Library Instructions: Click the Windows Media or MPG Movie link to view the video Film details are listed on the right Refer to the Viewing Instructions

  12. Certificate of Current Cost and Pricing Data

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    CERTIFICATE OF CURRENT COST AND PRICING DATA (OCT 1997) This is to certify that, to the best of my knowledge and belief, the cost or pricing data (as defined in section 15.401 of...

  13. Non-contact current and voltage sensor

    DOE Patents [OSTI]

    Carpenter, Gary D; El-Essawy, Wael; Ferreira, Alexandre Peixoto; Keller, Thomas Walter; Rubio, Juan C; Schappert, Michael A

    2014-03-25

    A detachable current and voltage sensor provides an isolated and convenient device to measure current passing through a conductor such as an AC branch circuit wire, as well as providing an indication of an electrostatic potential on the wire, which can be used to indicate the phase of the voltage on the wire, and optionally a magnitude of the voltage. The device includes a housing that contains the current and voltage sensors, which may be a ferrite cylinder with a hall effect sensor disposed in a gap along the circumference to measure current, or alternative a winding provided through the cylinder along its axis and a capacitive plate or wire disposed adjacent to, or within, the ferrite cylinder to provide the indication of the voltage.

  14. BEDES Current Activities | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Current Activities BEDES Current Activities BEDES is continually growing and improving. If you'd like to participate in some of the activities listed here, you can join the BEDES Working Group. BEDES 1.0 dictionary updates are planned for Spring and Fall 2015. An interactive, searchable version of the BEDES dictionary is planned for Spring 2015. BEDES Pilot programs are being launched with selected organizations, which will begin developing and disseminating BEDES-compliant mappings and schemas

  15. Current Test Procedure Waivers | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Current Test Procedure Waivers Current Test Procedure Waivers The U.S. Department of Energy's (DOE) regulations for covered products permit a person to seek a waiver, or an interim waiver, from the test procedure requirements for covered appliances and commercial equipment if certain criteria are satisfied. Regulations applicable to test procedure waivers for appliances can be found at 10 CFR 430.27; those applicable to test procedure waivers for commercial equipment are at 10 CFR 431.401. This

  16. Heating and current drive systems for TPX

    SciTech Connect (OSTI)

    Swain, D.; Goranson, P.; Halle, A. von; Bernabei, S.; Greenough, N.

    1994-05-24

    The heating and current drive (H and CD) system proposed for the TPX tokamak will consist of ion cyclotron, neutral beam, and lower hybrid systems. It will have 17.5 MW of installed H and CD power initially, and can be upgraded to 45 MW. It will be used to explore advanced confinement and fully current-driven plasma regimes with pulse lengths of up to 1,000 s.

  17. Coastal ocean current response to storm winds

    SciTech Connect (OSTI)

    Gordon, R.L.

    1982-03-20

    Design of offshore structures requires knowledge of the appropriate current profile to be used in conjunction with the design wave. Accurate determination of the current profile will depend on reliable current models. Vertical transfer of momentum in storm-driven current models is commonly treated either by using eddy viscosity or by assuming 'slab-like' mixed layer flow. These two fundamentally different approaches predict different current speeds and profiles during severe storms. The existing data base is inadequate to determine which approach is better, but most existing data sets are subject to one or more of four limitations that can lead one improperly to interpret the data as supporting the existence of current velocity shear in otherwise uniform mixed layers. One-dimensional slab models are found to compare favorably with observed wind-driven currents at the Ocean Test Structure in the Gulf of Mexico (deployed in 20 m deep water). By using some reasonably simple assumptions, these slab models are able to replicate many of the significantly features of the wide range of different responses. The character of the response appears to depend on an interaction of stratification and topography. Barotropic responses are characteristic of typical coastal responses; current oriented longshore and are in phase with the wind. Baroclinic responses are dominantly inertial as might be expected in the deep sea, but with an additional near-bottom cross-shore counter flow. The structure of one observed barotropic response is compared to detail to predictions of both slab and eddy viscosity models and found consistent with a slab model and inconsistent with eddy viscosity models. Shear observed during this event was not significantly different from zero, but was significantly below estimated shear predictions of four eddy viscosity models given the peak 0.4 N/m/sup 2/ wind stress.

  18. MHK technologies include current energy conversion

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    technologies include current energy conversion (CEC) devices, e.g., hydrokinetic turbines that extract power from water currents (riverine, tidal, and ocean) and wave energy conversion (WEC) devices that extract power from wave motion. Sandia's MHK research leverages decades of experience in engineering and design and analysis (D&A) of wind power technologies, and its vast research complex, including high-performance computing (HPC), advanced materials and coatings, nondestructive

  19. Critical-Current Reduction in Thin Superconducting Wires Due to Current Crowding

    SciTech Connect (OSTI)

    Hortensius, H.L.; Driessen, E.F.C.; Klapwijk, T.M.; Berggren, K.K.; Clem, John

    2012-05-03

    We demonstrate experimentally that the critical current in superconducting NbTiN wires is dependent on their geometrical shape, due to current-crowding effects. Geometric patterns such as 90{degrees} corners and sudden expansions of wire width are shown to result in the reduction of critical currents. The results are relevant for single-photon detectors as well as parametric amplifiers.

  20. Fetal and neonatal exposure to nicotine leads to augmented hepatic and circulating triglycerides in adult male offspring due to increased expression of fatty acid synthase

    SciTech Connect (OSTI)

    Ma, Noelle; Nicholson, Catherine J.; Wong, Michael; Holloway, Alison C.; Hardy, Daniel B.

    2014-02-15

    While nicotine replacement therapy is assumed to be a safer alternative to smoking during pregnancy, the long-term consequences for the offspring remain elusive. Animal studies now suggest that maternal nicotine exposure during perinatal life leads to a wide range of adverse outcomes for the offspring including increased adiposity. The focus of this study was to investigate if nicotine exposure during pregnancy and lactation leads to alterations in hepatic triglyceride synthesis. Female Wistar rats were randomly assigned to receive daily subcutaneous injections of saline (vehicle) or nicotine bitartrate (1 mg/kg/day) for two weeks prior to mating until weaning. At postnatal day 180 (PND 180), nicotine exposed offspring exhibited significantly elevated levels of circulating and hepatic triglycerides in the male offspring. This was concomitant with increased expression of fatty acid synthase (FAS), the critical hepatic enzyme in de novo triglyceride synthesis. Given that FAS is regulated by the nuclear receptor Liver X receptor (LXR?), we measured LXR? expression in both control and nicotine-exposed offspring. Nicotine exposure during pregnancy and lactation led to an increase in hepatic LXR? protein expression and enriched binding to the putative LXRE element on the FAS promoter in PND 180 male offspring. This was also associated with significantly enhanced acetylation of histone H3 [K9,14] surrounding the FAS promoter, a hallmark of chromatin activation. Collectively, these findings suggest that nicotine exposure during pregnancy and lactation leads to an increase in circulating and hepatic triglycerides long-term via changes in the transcriptional and epigenetic regulation of the hepatic lipogenic pathway. - Highlights: Our data reveals the links nicotine exposure in utero and long-term hypertriglyceridemia. It is due to nicotine-induced augmented expression of hepatic FAS and LXR? activity. Moreover, this involves nicotine-induced enhanced acetylation of histone H3 [K9,14]. This provides a mechanism for developmental origins of health and disease (DOHaD)

  1. Electronic constant current and current pulse signal generator for nuclear instrumentation testing

    DOE Patents [OSTI]

    Brown, Roger A.

    1994-01-01

    Circuitry for testing the ability of an intermediate range nuclear instrut to detect and measure a constant current and a periodic current pulse. The invention simulates the resistance and capacitance of the signal connection of a nuclear instrument ion chamber detector and interconnecting cable. An LED flasher/oscillator illuminates an LED at a periodic rate established by a timing capacitor and circuitry internal to the flasher/oscillator. When the LED is on, a periodic current pulse is applied to the instrument. When the LED is off, a constant current is applied. An inductor opposes battery current flow when the LED is on.

  2. Electronic constant current and current pulse signal generator for nuclear instrumentation testing

    DOE Patents [OSTI]

    Brown, R.A.

    1994-04-19

    Circuitry is described for testing the ability of an intermediate range nuclear instrument to detect and measure a constant current and a periodic current pulse. The invention simulates the resistance and capacitance of the signal connection of a nuclear instrument ion chamber detector and interconnecting cable. An LED flasher/oscillator illuminates an LED at a periodic rate established by a timing capacitor and circuitry internal to the flasher/oscillator. When the LED is on, a periodic current pulse is applied to the instrument. When the LED is off, a constant current is applied. An inductor opposes battery current flow when the LED is on. 1 figures.

  3. Daily movements of female white-tailed deer relative to parturition and breeding.

    SciTech Connect (OSTI)

    Gino J. D'Angelo; Christopher E. Comer; John C. Kilgo; Cory D. Drennan; David A. Osborn; Karl V. Miller

    2005-10-01

    Abstract: To assess how white-tailed deer (Odocoileus virginianus) herd demographics influence reproductive behaviors, we examined 24-h diel movements of female whitetailed deer relative to parturition and breeding in a low-density population with a near even sex ratio at the Savannah River Site (SRS), South Carolina. We conducted a series of intensive, 24-h radio-tracking periods of 13 females during spring and fall 2002. We compared daily range (ha), rate of travel (m/h), and distance between extreme daily locations (m), among the periods of pre-parturition and post-parturition and pre-, peak-, and post-rut. From pre-parturition to post-parturition, we observed decreases in diel range size (?¢????38.2%), distance between extreme diel locations (?¢????17.0%), and diel rate of travel (?¢????18.2%). Diel range size, distance between extreme diel locations, and diel rate of travel during the pre-rut and rut exceeded those observed during post-rut. We further identified substantial increases in mobility during 12 24-h diel periods for eight females during our fall monitoring. Our data suggest that female white-tailed deer reduce mobility post-fawning following exaggerated movements during pre-parturition. Furthermore, despite a near equal sex ratio, estrous does may be required to actively seek potential mates due to low population density.

  4. Structural insight into the regulation of MOF in the male-specific lethal

    Office of Scientific and Technical Information (OSTI)

    complex and the non-specific lethal complex (Journal Article) | SciTech Connect Structural insight into the regulation of MOF in the male-specific lethal complex and the non-specific lethal complex Citation Details In-Document Search Title: Structural insight into the regulation of MOF in the male-specific lethal complex and the non-specific lethal complex Authors: Huang, Jing ; Wan, Bingbing ; Wu, Lipeng ; Yang, Yuting ; Dou, Yali ; Lei, Ming [1] + Show Author Affiliations (Michigan-Med)

  5. Variable energy constant current accelerator structure

    DOE Patents [OSTI]

    Anderson, O.A.

    1988-07-13

    A variable energy, constant current ion beam accelerator structure is disclosed comprising an ion source capable of providing the desired ions, a pre-accelerator for establishing an initial energy level, a matching/pumping module having means for focusing means for maintaining the beam current, and at least one main accelerator module for continuing beam focus, with means capable of variably imparting acceleration to the beam so that a constant beam output current is maintained independent of the variable output energy. In a preferred embodiment, quadrupole electrodes are provided in both the matching/pumping module and the one or more accelerator modules, and are formed using four opposing cylinder electrodes which extend parallel to the beam axis and are spaced around the beam at 90/degree/ intervals with opposing electrodes maintained at the same potential. 12 figs., 3 tabs.

  6. GRC Annual Meeting 2015 Presentation: GTO Current Outlook | Department...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    GRC Annual Meeting 2015 Presentation: GTO Current Outlook GRC Annual Meeting 2015 Presentation: GTO Current Outlook PDF icon 2015 GRC GTO Current Outlook final.pdf More Documents & ...

  7. Research Site Locations for Current and Former EERE Postdoctoral...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Research Site Locations for Current and Former EERE Postdoctoral Awards Research Site Locations for Current and Former EERE Postdoctoral Awards Research Site Locations for Current ...

  8. Property:ElectricalCurrentMeasurement | Open Energy Information

    Open Energy Info (EERE)

    Description MHK Electrical Current Measurement Categories Used in FormTemplate MHKSensor Allows Values AC (Electric Current);DC (Electric Current) Retrieved from "http:...

  9. Current Status of Concentrator Photovoltaic (CPV) Technology

    SciTech Connect (OSTI)

    Philipps, S. P.; Bett, A. W.; Horowitz, K.; Kurtz, S.

    2015-01-01

    This report describes the current status of the market and technology for concentrator photovoltaic (CPV) cells and modules. Significant progress in CPV has been achieved, including record efficiencies for modules (36.7%) and cells (46%), as well as growth of large field installations in recent years. CPV technology may also have the potential to be cost-competitive on a levelized cost of energy (LCOE) basis in regions of high direct normal irradiance (DNI). The study includes an overview of all installations larger than 1 MW, information on companies currently active in the CPV field, efficiency data, and estimates of the LCOE in different scenarios.

  10. SEASAT altimeter determination of ocean current variability

    SciTech Connect (OSTI)

    Bernstein, R.L.; Born, G.H.; Whritner, R.H.

    1982-04-30

    Radar altimeters of great precision (roughly-equal10 cm), such as the one that flew on the SEASAT satellite, are capable of measuring the small oceanic height variations associated with geostrophic ocean currents. An experiment was concluded in the Kuroshio Current east of Japan, verifying this capability. Air-expendable bathythermographs (AXBT's) were dropped to coincide with the SEASAT subtract during flights on September 25 and October 5 and 13, 1978. Changes in surface dynamic height between flights were inferred from the AXBT data. They agreed generally to within +- 10 cm of height changes observed in the altimeter data.

  11. Current as of 7/18/2011

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Current and Past Years' Facts of the Week Current and Past Years' Facts of the Week In 1989, petroleum consumption in the transportation sector surpassed U.S. petroleum production for the first time, creating a gap that must be met with imports of petroleum. In 2009, however, the U.S. production of petroleum began to increase. Learn more about the Transportation Petroleum Gap at the July 14, 2014 Fact of the Week. Information on historical gas prices is available on the August 25, 2014 fact of

  12. Fluctuation of heat current in Josephson junctions

    SciTech Connect (OSTI)

    Virtanen, P.; Giazotto, F.

    2015-02-15

    We discuss the statistics of heat current between two superconductors at different temperatures connected by a generic weak link. As the electronic heat in superconductors is carried by Bogoliubov quasiparticles, the heat transport fluctuations follow the Levitov–Lesovik relation. We identify the energy-dependent quasiparticle transmission probabilities and discuss the resulting probability density and fluctuation relations of the heat current. We consider multichannel junctions, and find that heat transport in diffusive junctions is unique in that its statistics is independent of the phase difference between the superconductors.

  13. Flexible moldable conductive current-limiting materials

    DOE Patents [OSTI]

    Shea, John Joseph; Djordjevic, Miomir B.; Hanna, William Kingston

    2002-01-01

    A current limiting PTC device (10) has two electrodes (14) with a thin film of electric conducting polymer material (20) disposed between the electrodes, the polymer material (20) having superior flexibility and short circuit performance, where the polymer material contains short chain aliphatic diepoxide, conductive filler particles, curing agent, and, preferably, a minor amount of bisphenol A epoxy resin.

  14. Beam current controller for laser ion source

    SciTech Connect (OSTI)

    Okamura, Masahiro

    2014-10-28

    The present invention relates to the design and use of an ion source with a rapid beam current controller for experimental and medicinal purposes. More particularly, the present invention relates to the design and use of a laser ion source with a magnetic field applied to confine a plasma flux caused by laser ablation.

  15. CP Violation, Neutral Currents, and Weak Equivalence

    DOE R&D Accomplishments [OSTI]

    Fitch, V. L.

    1972-03-23

    Within the past few months two excellent summaries of the state of our knowledge of the weak interactions have been presented. Correspondingly, we will not attempt a comprehensive review but instead concentrate this discussion on the status of CP violation, the question of the neutral currents, and the weak equivalence principle.

  16. LOW-LEVEL DIRECT CURRENT AMPLIFIER

    DOE Patents [OSTI]

    Kerns, Q.A.

    1959-05-01

    A d-c amplifier is described. Modulation is provided between a d-c signal and an alternating current to give an output signal proportional to the d- c signal. The circuit has high sensitivity and accuracy. (T.R.H.)

  17. Light sources based on semiconductor current filaments

    DOE Patents [OSTI]

    Zutavern, Fred J.; Loubriel, Guillermo M.; Buttram, Malcolm T.; Mar, Alan; Helgeson, Wesley D.; O'Malley, Martin W.; Hjalmarson, Harold P.; Baca, Albert G.; Chow, Weng W.; Vawter, G. Allen

    2003-01-01

    The present invention provides a new type of semiconductor light source that can produce a high peak power output and is not injection, e-beam, or optically pumped. The present invention is capable of producing high quality coherent or incoherent optical emission. The present invention is based on current filaments, unlike conventional semiconductor lasers that are based on p-n junctions. The present invention provides a light source formed by an electron-hole plasma inside a current filament. The electron-hole plasma can be several hundred microns in diameter and several centimeters long. A current filament can be initiated optically or with an e-beam, but can be pumped electrically across a large insulating region. A current filament can be produced in high gain photoconductive semiconductor switches. The light source provided by the present invention has a potentially large volume and therefore a potentially large energy per pulse or peak power available from a single (coherent) semiconductor laser. Like other semiconductor lasers, these light sources will emit radiation at the wavelength near the bandgap energy (for GaAs 875 nm or near infra red). Immediate potential applications of the present invention include high energy, short pulse, compact, low cost lasers and other incoherent light sources.

  18. Current Job Openings | Princeton Plasma Physics Lab

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Employment Opportunities Directory Environment, Safety & Health Furth Plasma Physics Library Lab Leadership Organization Chart Technology Transfer Contact Us Business Operations Careers/ Human Resources Employment Opportunities Directory Environment, Safety & Health Furth Plasma Physics Library Lab Leadership Organization Chart Technology Transfer Current Job Openings Engineering Head, Engineering Department Position Summary: The Head of Engineering is responsible for planning and

  19. Evolution of the current wedge and the generator current circuit by fast reconnection

    SciTech Connect (OSTI)

    Ugai, M.

    2009-01-15

    Temporal dynamics of the generator current circuit and the current wedge is studied on the basis of the spontaneous fast reconnection model. Once the fast reconnection jet causes magnetic field dipolarization, a magnetohydrodynamic (MHD) generator arises ahead of the magnetic loop top. The generator effect is so powerful that a current circuit is strongly driven in the generator region and evolves to approach the loop footpoint through field-aligned currents along the loop boundary; simultaneously, the sheet current directed to the generator region turns its direction toward the loop footpoint, giving rise to current wedge evolution outside the generator current circuit. Both these current circuits are eventually connected to a layer around the separatrix in the loop footpoint, where the current is concentrated and intensified, leading to drastic energy dissipations. It is concluded that the MHD generator ahead of the magnetic loop top, provided and sustained by the fast reconnection jet, plays a crucial role in the two-ribbon heating observed in geomagentic substorms and solar flares.

  20. Mutation analysis of BRCA1 and BRCA2 in a male breast cancer population

    SciTech Connect (OSTI)

    Friedman, L.S.; Gayther, S.A.; Ponder, B.A.J.

    1997-02-01

    A population-based series of 54 male breast cancer cases from Southern California were analyzed for germ-line mutations in the inherited breast/ovarian cancer genes, BRCA1 and BRCA2. Nine (17%) of the patients had a family history of breast and/or ovarian cancer in at least one first-degree relative. A further seven (13%) of the patients reported breast/ovarian cancer in at least one second-degree relative and in no first-degree relatives. No germ-line BRCA1 mutations were found. Two male breast cancer patients (4% of the total) were found to carry novel truncating mutations in the BRCA2 gene. Only one of the two male breast cancer patients carrying a BRCA2 mutation had a family history of cancer, with one case of ovarian cancer in a first-degree relative. The remaining eight cases (89%) of male breast cancer with a family history of breast/ovarian cancer in first-degree relatives remain unaccounted for by mutations in either the BRCA1 gene or the BRCA2 gene. 23 refs., 1 fig., 5 tabs.

  1. Contoured Surface Eddy Current Inspection System

    DOE Patents [OSTI]

    Batzinger, Thomas James; Fulton, James Paul; Rose, Curtis Wayne; Perocchi, Lee Cranford

    2003-04-08

    Eddy current inspection of a contoured surface of a workpiece is performed by forming a backing piece of flexible, resiliently yieldable material with a contoured exterior surface conforming in shape to the workpiece contoured surface. The backing piece is preferably cast in place so as to conform to the workpiece contoured surface. A flexible eddy current array probe is attached to the contoured exterior surface of the backing piece such that the probe faces the contoured surface of the workpiece to be inspected when the backing piece is disposed adjacent to the workpiece. The backing piece is then expanded volumetrically by inserting at least one shim into a slot in the backing piece to provide sufficient contact pressure between the probe and the workpiece contoured surface to enable the inspection of the workpiece contoured surface to be performed.

  2. Current Experiments in Particle Physics (September 1996)

    SciTech Connect (OSTI)

    Galic, H.; Lehar, F.; Klyukhin, V.I.; Ryabov, Yu.G.; Bilak, S.V.; Illarionova, N.S.; Khachaturov, B.A.; Strokovsky, E.A.; Hoffman, C.M.; Kettle, P.-R.; Olin, A.; Armstrong, F.E.

    1996-09-01

    This report contains summaries of current and recent experiments in Particle Physics. Included are experiments at BEPC (Beijing), BNL, CEBAF, CERN, CESR, DESY, FNAL, Frascati, ITEP (Moscow), JINR (Dubna), KEK, LAMPF, Novosibirsk, PNPI (St. Petersburg), PSI, Saclay, Serpukhov, SLAC, and TRIUMF, and also several proton decay and solar neutrino experiments. Excluded are experiments that finished taking data before 1991. Instructions are given for the World Wide Web (WWW) searching of the computer database (maintained under the SLAC-SPIRES system) that contains the summaries. This report contains full summaries of 180 approved current and recent experiments in elementary particle physics. The focus of the report is on selected experiments which directly contribute to our better understanding of elementary particles and their properties such as masses, widths or lifetimes, and branching fractions.

  3. Alternating current long range alpha particle detector

    DOE Patents [OSTI]

    MacArthur, D.W.; McAtee, J.L.

    1993-02-16

    An alpha particle detector, utilizing alternating currents, which is capable of detecting alpha particles from distinct sources. The use of alternating currents allows use of simpler ac circuits which, in turn, are not susceptible to dc error components. It also allows the benefit of gas gain, if desired. In the invention, a voltage source creates an electric field between two conductive grids, and between the grids and a conductive enclosure. Air containing air ions created by collision with alpha particles is drawn into the enclosure and detected. In some embodiments, the air flow into the enclosure is interrupted, creating an alternating flow of ions. In another embodiment, a modulated voltage is applied to the grid, also modulating the detection of ions.

  4. Alternating current long range alpha particle detector

    DOE Patents [OSTI]

    MacArthur, Duncan W.; McAtee, James L.

    1993-01-01

    An alpha particle detector, utilizing alternating currents, whcih is capable of detecting alpha particles from distinct sources. The use of alternating currents allows use of simpler ac circuits which, in turn, are not susceptible to dc error components. It also allows the benefit of gas gain, if desired. In the invention, a voltage source creates an electric field between two conductive grids, and between the grids and a conductive enclosure. Air containing air ions created by collision with alpha particles is drawn into the enclosure and detected. In some embodiments, the air flow into the enclosure is interrupted, creating an alternating flow of ions. In another embodiment, a modulated voltage is applied to the grid, also modulating the detection of ions.

  5. Eddy current signal comparison for tube identification

    SciTech Connect (OSTI)

    Glass, S. W. E-mail: Ratko.Vojvodic@areva.com; Vojvodic, R. E-mail: Ratko.Vojvodic@areva.com

    2015-03-31

    Inspection of nuclear power plant steam generator tubes is required to justify continued safe plant operation. The steam generators consist of thousands of tubes with nominal diameters of 15 to 22mm, approximately 1mm wall thickness, and 20 to 30m in length. The tubes are inspected by passing an eddy current probe through the tubes from tube end to tube end. It is critical to know exactly which tube identification (row and column) is associated with each tube's data. This is controlled by a precision manipulator that provides the tube ID to the eddy current system. Historically there have been some instances where the manipulator incorrectly reported the tube ID. This can have serious consequences including lack of inspection of a tube, or if a pluggable indication is detected, the tube is likely to be mis-plugged thereby risking a primary to secondary leak.

  6. Cryogenic Current Lead Analysis Model Program

    Energy Science and Technology Software Center (OSTI)

    1992-01-01

    CCLAMP was developed to provide a tool for tha analysis of superconducting or normal current leads used to supply electricity from a warm interface (usually room temperature) to a device at cryogenic temperatures. It determines the heat leak to the cryogenic connection and the mass flow of the cryogen (typically helium) for the lead and installation modelled. It may be used to thermally optimize a lead design for a particular application. The user provides relevantmore » geometry details to model the electrical (length, diameter, superconducting length) and heat exchanger design of the lead (heat transfer coefficient, heat transfer area). It has a transient analysis capability so that lead transients such as cool down, current ramping, flow disruptions, and control simulations can be performed.« less

  7. Tidal & Current Modeling Development and Validation

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Tidal & Current Modeling Development and Validation - Sandia Energy Energy Search Icon Sandia Home Locations Contact Us Employee Locator Energy & Climate Secure & Sustainable Energy Future Stationary Power Energy Conversion Efficiency Solar Energy Wind Energy Water Power Supercritical CO2 Geothermal Natural Gas Safety, Security & Resilience of the Energy Infrastructure Energy Storage Nuclear Power & Engineering Grid Modernization Battery Testing Nuclear Fuel Cycle Defense

  8. Current experiments in elementary particle physics. Revision

    SciTech Connect (OSTI)

    Galic, H.; Armstrong, F.E.; von Przewoski, B.

    1994-08-01

    This report contains summaries of 568 current and recent experiments in elementary particle physics. Experiments that finished taking data before 1988 are excluded. Included are experiments at BEPC (Beijing), BNL, CEBAF, CERN, CESR, DESY, FNAL, INS (Tokyo), ITEP (Moscow), IUCF (Bloomington), KEK, LAMPF, Novosibirsk, PNPI (St. Petersburg), PSI, Saclay, Serpukhov, SLAC, and TRIUMF, and also several underground and underwater experiments. Instructions are given for remote searching of the computer database (maintained under the SLAC/SPIRES system) that contains the summaries.

  9. Current and lattice matched tandem solar cell

    DOE Patents [OSTI]

    Olson, Jerry M. (Lakewood, CO)

    1987-01-01

    A multijunction (cascade) tandem photovoltaic solar cell device is fabricated of a Ga.sub.x In.sub.1-x P (0.505.ltoreq.X.ltoreq.0.515) top cell semiconductor lattice matched to a GaAs bottom cell semiconductor at a low-resistance heterojunction, preferably a p+/n+ heterojunction between the cells. The top and bottom cells are both lattice matched and current matched for high efficiency solar radiation conversion to electrical energy.

  10. DIAGNOSIS OF EQUILIBRIUM MAGNETIC PROFILES, CURRENT TRANSPORT,

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    DIAGNOSIS OF EQUILIBRIUM MAGNETIC PROFILES, CURRENT TRANSPORT, AND INTERNAL STRUCTURES IN A REVERSED-FIELD PINCH USING ELECTRON TEMPERATURE FLUCTUATIONS by Eli Parke A dissertation submitted in partial fulfillment of the requirements for the degree of Doctor of Philosophy (Physics) at the UNIVERSITY OF WISCONSIN-MADISON 2014 Date of final oral examination: 08/01/14 The dissertation is approved by the following members of the Final Oral Committee: Daniel J. Den Hartog, Research Professor, Physics

  11. Ferrosilicon smelting in a direct current furnace

    DOE Patents [OSTI]

    Dosaj, V.D.; May, J.B.

    1992-12-29

    The present invention is a process for smelting ferrosilicon alloy. The process comprises adding a carbon source and tailings comprising oxides of silicon and iron to a substantially closed furnace. Heat is supplied to the furnace by striking a direct current arc between a cathode electrode and an anode functional hearth. In a preferred embodiment of the present invention, the cathode electrode is hollow and feed to the substantially closed furnace is through the hollow electrode. 1 figure.

  12. Andreev current for low temperature thermometry

    SciTech Connect (OSTI)

    Faivre, T. Pekola, J. P.; Golubev, D. S.

    2015-05-04

    We demonstrate experimentally that disorder enhanced Andreev current in a tunnel junction between a normal metal and a superconductor provides a method to measure electronic temperature, specifically at temperatures below 200 mK when aluminum is used. This Andreev thermometer has some advantages over conventional quasiparticle thermometers: For instance, it does not conduct heat and its reading does not saturate until at lower temperatures. Another merit is that the responsivity is constant over a wide temperature range.

  13. Current Events | National Nuclear Security Administration

    National Nuclear Security Administration (NNSA)

    Computing Current Events (This list is of selected events only) Date Conferences/Workshops March 11-12, 2015 Stewardship Science Academic Programs Symposium Santa Fe, NM March 14-18, 2015 SIAM Conference on Computational Science and Engineering Salt Lake City, UT April 27-30, 2015 July 27-30, 2015 November 15-20, 2015 Salishan Conference on High-Speed Computing Oregon DOE Computational Science Graduate Fellowship (CSGF) Annual Program Review Crystal Gateway Marriott, Arlington, VA Supercomputing

  14. Architecture for high critical current superconducting tapes

    DOE Patents [OSTI]

    Jia, Quanxi; Foltyn, Stephen R.

    2002-01-01

    Improvements in critical current capacity for superconducting film structures are disclosed and include the use of, e.g., multilayer YBCO structures where individual YBCO layers are separated by a layer of an insulating material such as CeO.sub.2 and the like, a layer of a conducting material such as strontium ruthenium oxide and the like or by a second superconducting material such as SmBCO and the like.

  15. Ferrosilicon smelting in a direct current furnace

    DOE Patents [OSTI]

    Dosaj, Vishu D. (Midland, MI); May, James B. (Midland, MI)

    1992-12-29

    The present invention is a process for smelting ferrosilicon alloy. The process comprises adding a carbon source and tailings comprising oxides of silicon and iron to a substantially closed furnace. Heat is supplied to the furnace by striking a direct current arc between a cathode electrode and an anode functional hearth. In a preferred embodiment of the present invention, the cathode electrode is hollow and feed to the substantially closed furnace is through the hollow electrode.

  16. HIGH VOLTAGE, HIGH CURRENT SPARK GAP SWITCH

    DOE Patents [OSTI]

    Dike, R.S.; Lier, D.W.; Schofield, A.E.; Tuck, J.L.

    1962-04-17

    A high voltage and current spark gap switch comprising two main electrodes insulatingly supported in opposed spaced relationship and a middle electrode supported medially between the main electrodes and symmetrically about the median line of the main electrodes is described. The middle electrode has a perforation aligned with the median line and an irradiation electrode insulatingly supported in the body of the middle electrode normal to the median line and protruding into the perforation. (AEC)

  17. Variable energy constant current accelerator structure

    DOE Patents [OSTI]

    Anderson, Oscar A.

    1990-01-01

    A variable energy, constant current ion beam accelerator structure is disclosed comprising an ion source capable of providing the desired ions, a pre-accelerator for establishing an initial energy level, a matching/pumping module having means for focusing means for maintaining the beam current, and at least one main accelerator module for continuing beam focus, with means capable of variably imparting acceleration to the beam so that a constant beam output current is maintained independent of the variable output energy. In a preferred embodiment, quadrupole electrodes are provided in both the matching/pumping module and the one or more accelerator modules, and are formed using four opposing cylinder electrodes which extend parallel to the beam axis and are spaced around the beam at 90.degree. intervals with opposing electrodes maintained at the same potential. Adjacent cylinder electrodes of the quadrupole structure are maintained at different potentials to thereby reshape the cross section of the charged particle beam to an ellipse in cross section at the mid point along each quadrupole electrode unit in the accelerator modules. The beam is maintained in focus by alternating the major axis of the ellipse along the x and y axis respectively at adjacent quadrupoles. In another embodiment, electrostatic ring electrodes may be utilized instead of the quadrupole electrodes.

  18. A New High-Current Proton Accelerator

    SciTech Connect (OSTI)

    Cleland, M. R.; Galloway, R. A.; DeSanto, L.; Jongen, Y.

    2009-03-10

    A high-current (>20 mA) dc proton accelerator is being developed for applications such as boron neutron capture therapy (BNCT) and the detection of explosive materials by nuclear resonance absorption (NRA) of gamma radiation. The high-voltage dc accelerator (adjustable between 1.4 and 2.8 MeV) will be a single-ended industrial Dynamitron registered system equipped with a compact high-current, microwave-driven proton source. A magnetic mass analyzer inserted between the ion source and the acceleration tube will select the protons and reject heavier ions. A sorption pump near the ion source will minimize the flow of neutral hydrogen gas into the acceleration tube. For BNCT, a lithium target for generating epithermal neutrons is being developed that will be capable of dissipating the high power (>40 kW) of the proton beam. For NRA, special targets will be used to generate gamma rays with suitable energies for exciting nuclides typically present in explosive materials. Proton accelerators with such high-current and high-power capabilities in this energy range have not been developed previously.

  19. Eddy current inspection tool. [Patent application

    DOE Patents [OSTI]

    Petrini, R.R.; Van Lue, D.F.

    1980-10-29

    A miniaturized inspection tool, for testing and inspection of metal objects in locations with difficult accessibility, which comprises eddy current sensing equipment with a probe coil, and associated coaxial coil cable, oil energizing means, and circuit means responsive to impedance changes in the coil as effected by induced eddy currents in a test object to produce a data output signal proportional to such changes. The coil and cable are slideably received in the utility channel of the flexible insertion tube of a fiberoptic scope. The scope is provided with light transmitting and receiving fiberoptics for viewing through the flexible tube, and articulation means for articulating the distal end of the tube and permitting close control of coil placement relative to a test object. The eddy current sensing equipment includes a tone generator for generating audible signals responsive to the data output signal. In one selected mode of operation, the tone generator responsive to the output signal above a selected level generates a constant single frequency tone for signalling detection of a discontinuity and, in a second selected mode, generates a tone whose frequency is proportional to the difference between the output signal and a predetermined selected threshold level.

  20. Current Abstracts Nuclear Reactors and Technology

    SciTech Connect (OSTI)

    Bales, J.D.; Hicks, S.C.

    1993-01-01

    This publication Nuclear Reactors and Technology (NRT) announces on a monthly basis the current worldwide information available from the open literature on nuclear reactors and technology, including all aspects of power reactors, components and accessories, fuel elements, control systems, and materials. This publication contains the abstracts of DOE reports, journal articles, conference papers, patents, theses, and monographs added to the Energy Science and Technology Database during the past month. Also included are US information obtained through acquisition programs or interagency agreements and international information obtained through acquisition programs or interagency agreements and international information obtained through the International Energy Agency`s Energy Technology Data Exchange or government-to-government agreements. The digests in NRT and other citations to information on nuclear reactors back to 1948 are available for online searching and retrieval on the Energy Science and Technology Database and Nuclear Science Abstracts (NSA) database. Current information, added daily to the Energy Science and Technology Database, is available to DOE and its contractors through the DOE Integrated Technical Information System. Customized profiles can be developed to provide current information to meet each user`s needs.

  1. Fast wave current drive in DEMO

    SciTech Connect (OSTI)

    Lerche, E.; Van Eestera, D.; Messiaen, A.; Collaboration: EFDA-PPPT Contributors

    2014-02-12

    The ability to non-inductively drive a large fraction of the toroidal plasma current in magnetically confined plasmas is an essential requirement for steady state fusion reactors such as DEMO. Besides neutral beam injection (NBI), electron-cyclotron resonance heating (ECRH) and lower hybrid wave heating (LH), ion-cyclotron resonance heating (ICRH) is a promising candidate to drive current, in particular at the high temperatures expected in fusion plasmas. In this paper, the current drive (CD) efficiencies calculated with coupled ICRF wave / CD numerical codes for the DEMO-1 design case (R{sub 0}=9m, B{sub 0}=6.8T, a{sub p}=2.25m) [1] are presented. It will be shown that although promising CD efficiencies can be obtained in the usual ICRF frequency domain (20-100MHz) by shifting the dominant ion-cyclotron absorption layers to the high-field side, operation at higher frequencies (100-300MHz) has a stronger CD potential, provided the parasitic RF power absorption of the alpha particles can be minimized.

  2. Female physicists lead the way on Jefferson Lab experiment | Jefferson Lab

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Female physicists lead the way on Jefferson Lab experiment Some of the women working on experiment E00-116 Some of the women who worked on experiment E00-116 (left to right): Simona Malace (Hampton University and University of Bucharest), Ioana Niculescu (James Madison University, co-spokesperson), Erin McGrath (James Madison University), Ya Li (University of Houston), Tanya Ostapenko (Gettysburg College), Wendy Hinton (Hampton University), Crystal Bertoncini (Vassar College). Absent from photo:

  3. Indirectly sensing accelerator beam currents for limiting maximum beam current magnitude

    DOE Patents [OSTI]

    Bogaty, J.M.; Clifft, B.E.; Bollinger, L.M.

    1995-08-08

    A beam current limiter is disclosed for sensing and limiting the beam current in a particle accelerator, such as a cyclotron or linear accelerator, used in scientific research and medical treatment. A pair of independently operable capacitive electrodes sense the passage of charged particle bunches to develop an RF signal indicative of the beam current magnitude produced at the output of a bunched beam accelerator. The RF signal produced by each sensing electrode is converted to a variable DC voltage indicative of the beam current magnitude. The variable DC voltages thus developed are compared to each other to verify proper system function and are further compared to known references to detect beam currents in excess of pre-established limits. In the event of a system malfunction, or if the detected beam current exceeds pre-established limits, the beam current limiter automatically inhibits further accelerator operation. A high Q tank circuit associated with each sensing electrode provides a narrow system bandwidth to reduce noise and enhance dynamic range. System linearity is provided by injecting, into each sensing electrode, an RF signal that is offset from the bunching frequency by a pre-determined beat frequency to ensure that subsequent rectifying diodes operate in a linear response region. The system thus provides a large dynamic range in combination with good linearity. 6 figs.

  4. Indirectly sensing accelerator beam currents for limiting maximum beam current magnitude

    DOE Patents [OSTI]

    Bogaty, John M.; Clifft, Benny E.; Bollinger, Lowell M.

    1995-01-01

    A beam current limiter for sensing and limiting the beam current in a particle accelerator, such as a cyclotron or linear accelerator, used in scientific research and medical treatment. A pair of independently operable capacitive electrodes sense the passage of charged particle bunches to develop an RF signal indicative of the beam current magnitude produced at the output of a bunched beam accelerator. The RF signal produced by each sensing electrode is converted to a variable DC voltage indicative of the beam current magnitude. The variable DC voltages thus developed are compared to each other to verify proper system function and are further compared to known references to detect beam currents in excess of pre-established limits. In the event of a system malfunction, or if the detected beam current exceeds pre-established limits, the beam current limiter automatically inhibits further accelerator operation. A high Q tank circuit associated with each sensing electrode provides a narrow system bandwidth to reduce noise and enhance dynamic range. System linearity is provided by injecting, into each sensing electrode, an RF signal that is offset from the bunching frequency by a pre-determined beat frequency to ensure that subsequent rectifying diodes operate in a linear response region. The system thus provides a large dynamic range in combination with good linearity.

  5. CURRENT BUILDUP IN EMERGING SERPENTINE FLUX TUBES

    SciTech Connect (OSTI)

    Pariat, E.; Masson, S.; Aulanier, G.

    2009-08-20

    The increase of magnetic flux in the solar atmosphere during active-region formation involves the transport of the magnetic field from the solar convection zone through the lowest layers of the solar atmosphere, through which the plasma {beta} changes from >1 to <1 with altitude. The crossing of this magnetic transition zone requires the magnetic field to adopt a serpentine shape also known as the sea-serpent topology. In the frame of the resistive flux-emergence model, the rising of the magnetic flux is believed to be dynamically driven by a succession of magnetic reconnections which are commonly observed in emerging flux regions as Ellerman bombs. Using a data-driven, three-dimensional (3D) magnetohydrodynamic numerical simulation of flux emergence occurring in active region 10191 on 2002 November 16-17, we study the development of 3D electric current sheets. We show that these currents buildup along the 3D serpentine magnetic-field structure as a result of photospheric diverging horizontal line-tied motions that emulate the observed photospheric evolution. We observe that reconnection can not only develop following a pinching evolution of the serpentine field line, as usually assumed in two-dimensional geometry, but can also result from 3D shearing deformation of the magnetic structure. In addition, we report for the first time on the observation in the UV domain with the Transition Region and Coronal Explorer (TRACE) of extremely transient loop-like features, appearing within the emerging flux domain, which link several Ellermam bombs with one another. We argue that these loop transients can be explained as a consequence of the currents that build up along the serpentine magnetic field.

  6. COMPILATION OF CURRENT HIGH ENERGY PHYSICS EXPERIMENTS

    SciTech Connect (OSTI)

    Wohl, C.G.; Kelly, R.L.; Armstrong, F.E.; Horne, C.P.; Hutchinson, M.S.; Rittenberg, A.; Trippe, T.G.; Yost, G.P.; Addis, L.; Ward, C.E.W.; Baggett, N.; Goldschmidt-Clermong, Y.; Joos, P.; Gelfand, N.; Oyanagi, Y.; Grudtsin, S.N.; Ryabov, Yu.G.

    1981-05-01

    This is the fourth edition of our compilation of current high energy physics experiments. It is a collaborative effort of the Berkeley Particle Data Group, the SLAC library, and nine participating laboratories: Argonne (ANL), Brookhaven (BNL), CERN, DESY, Fermilab (FNAL), the Institute for Nuclear Study, Tokyo (INS), KEK, Serpukhov (SERP), and SLAC. The compilation includes summaries of all high energy physics experiments at the above laboratories that (1) were approved (and not subsequently withdrawn) before about April 1981, and (2) had not completed taking of data by 1 January 1977. We emphasize that only approved experiments are included.

  7. High current regimes in RFX-mod

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    current regimes in RFX-mod This article has been downloaded from IOPscience. Please scroll down to see the full text article. 2008 Plasma Phys. Control. Fusion 50 124031 (http://iopscience.iop.org/0741-3335/50/12/124031) Download details: IP Address: 128.104.166.214 The article was downloaded on 13/10/2010 at 22:51 Please note that terms and conditions apply. View the table of contents for this issue, or go to the journal homepage for more Home Search Collections Journals About Contact us My

  8. Sensing Current and Forces with SPM

    SciTech Connect (OSTI)

    Park, Jeong Y.; Maier, Sabine; Hendriksen, Bas; Salmeron, Miquel

    2010-07-02

    Atomic force microscopy (AFM) and scanning tunneling microscopy (STM) are well established techniques to image surfaces and to probe material properties at the atomic and molecular scale. In this review, we show hybrid combinations of AFM and STM that bring together the best of two worlds: the simultaneous detection of atomic scale forces and conduction properties. We illustrate with several examples how the detection of forces during STM and the detection of currents during AFM can give valuable additional information of the nanoscale material properties.

  9. Current experiments in elementary particle physics. Revised

    SciTech Connect (OSTI)

    Galic, H.; Wohl, C.G.; Armstrong, B.; Dodder, D.C.; Klyukhin, V.I.; Ryabov, Yu.G.; Illarionova, N.S.; Lehar, F.; Oyanagi, Y.; Olin, A.; Frosch, R.

    1992-06-01

    This report contains summaries of 584 current and recent experiments in elementary particle physics. Experiments that finished taking data before 1986 are excluded. Included are experiments at Brookhaven, CERN, CESR, DESY, Fermilab, Tokyo Institute of Nuclear Studies, Moscow Institute of Theoretical and Experimental Physics, KEK, LAMPF, Novosibirsk, Paul Scherrer Institut (PSI), Saclay, Serpukhov, SLAC, SSCL, and TRIUMF, and also several underground and underwater experiments. Instructions are given for remote searching of the computer database (maintained under the SLAC/SPIRES system) that contains the summaries.

  10. Eddy current measurement of tube element spacing

    DOE Patents [OSTI]

    Latham, Wayne Meredith; Hancock, Jimmy Wade; Grut, Jayne Marie

    1998-01-01

    A method of electromagnetically measuring the distance between adjacent tube elements in a heat exchanger. A cylindrical, high magnetic permeability ferrite slug is placed in the tube adjacent the spacing to be measured. A bobbin or annular coil type probe operated in the absolute mode is inserted into a second tube adjacent the spacing to be measured. From prior calibrations on the response of the eddy current coil, the signals from the coil, when sensing the presence of the ferrite slug, are used to determine the spacing between the tubes.

  11. Soft-commutated direct current motor

    DOE Patents [OSTI]

    Hsu, John S. (Oak Ridge, TN)

    1999-01-01

    A method and circuit is disclosed for soft-commutation of a direct current (DC) motor. An attenuation circuit is connected through auxiliary brushes A, A', B and B' to the commutator (16) to drain circuit from successive armature coils (15) before the main brushes (27, 28) disconnects from each of the coils (15). This prevents the spark generation that normally occurs in conventional DC motors. The attenuation circuit may also be connected before energization of the coil (15) for a soft turning on operation.

  12. EM Current Project Performance.xls

    Office of Environmental Management (EM)

    Current Critical Decision Original Approved Cost Original Completion Date Rebaselines Rebaselined Project Cost Rebaselined Completion Date Site RL-0011.C1 Plutonium Finishing Plant (PFP) Decontamination and Dismantlement - ARRA Base CD-3 $330,200,000 9/30/2011 1 $352,000,000 11/30/2017 Hanford Site RL-0041.C1 Nuclear Facility D&D - River Corridor Closure Project CD-3 $2,251,500,000 9/30/2019 0 Hanford Site RL-0011.C2 Plutonium Finishing Plant Demolition Project CD-3 $72,600,000 8/31/2018 0

  13. Soft-commutated direct current motor

    DOE Patents [OSTI]

    Hsu, J.S.

    1999-07-27

    A method and circuit is disclosed for soft-commutation of a direct current (DC) motor. An attenuation circuit is connected through auxiliary brushes A, A[prime], B and B[prime] to the commutator (16) to drain circuit from successive armature coils (15) before the main brushes (27, 28) disconnects from each of the coils (15). This prevents the spark generation that normally occurs in conventional DC motors. The attenuation circuit may also be connected before energization of the coil (15) for a soft turning on operation. 13 figs.

  14. HIGH CURRENT RADIO FREQUENCY ION SOURCE

    DOE Patents [OSTI]

    Abdelaziz, M.E.

    1963-04-01

    This patent relates to a high current radio frequency ion source. A cylindrical plasma container has a coil disposed around the exterior surface thereof along the longitudinal axis. Means are provided for the injection of an unionized gas into the container and for applying a radio frequency signal to the coil whereby a radio frequency field is generated within the container parallel to the longitudinal axis thereof to ionize the injected gas. Cathode and anode means are provided for extracting transverse to the radio frequency field from an area midway between the ends of the container along the longitudinal axis thereof the ions created by said radio frequency field. (AEC)

  15. Current experiments in elementary particle physics

    SciTech Connect (OSTI)

    Wohl, C.G.; Armstrong, F.E.; Trippe, T.G.; Yost, G.P. ); Oyanagi, Y. ); Dodder, D.C. ); Ryabov, Yu.G.; Slabospitsky, S.R. . Inst. Fiziki Vysokikh Ehnergij); Frosch, R. (Swiss Inst. for Nuclear Research, Villigen (Switzerla

    1989-09-01

    This report contains summaries of 736 current and recent experiments in elementary particle physics (experiments that finished taking data before 1982 are excluded). Included are experiments at Brookhaven, CERN, CESR, DESY, Fermilab, Tokyo Institute of Nuclear Studies, Moscow Institute of Theoretical and Experimental Physics, Joint Institute for Nuclear Research (Dubna), KEK, LAMPF, Novosibirsk, PSI/SIN, Saclay, Serpukhov, SLAC, and TRIUMF, and also several underground experiments. Also given are instructions for searching online the computer database (maintained under the SLAC/SPIRES system) that contains the summaries. Properties of the fixed-target beams at most of the laboratories are summarized.

  16. Current experiments in elementary particle physics

    SciTech Connect (OSTI)

    Wohl, C.G.; Armstrong, F.E., Oyanagi, Y.; Dodder, D.C.; Ryabov, Yu.G.; Frosch, R.; Olin, A.; Lehar, F.; Moskalev, A.N.; Barkov, B.P.

    1987-03-01

    This report contains summaries of 720 recent and current experiments in elementary particle physics (experiments that finished taking data before 1980 are excluded). Included are experiments at Brookhaven, CERN, CESR, DESY, Fermilab, Moscow Institute of Theoretical and Experimental Physics, Tokyo Institute of Nuclear Studies, KEK, LAMPF, Leningrad Nuclear Physics Institute, Saclay, Serpukhov, SIN, SLAC, and TRIUMF, and also experiments on proton decay. Instructions are given for searching online the computer database (maintained under the SLAC/SPIRES system) that contains the summaries. Properties of the fixed-target beams at most of the laboratories are summarized.

  17. Current Projects | Princeton Plasma Physics Lab

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Current Projects In Situ Production of Radionuclide Technetium-99m Researchers at Princeton Plasma Physics Laboratory have developed a new process for the production of Molybdenum 99 (Mo-99), a man made radionuclide which decays (T 1/2 = 66 hours) to Technetium-99m (Tc-99m). Tc-99 m is a radioactive tracer isotope, used in the nuclear medical field for diagnostic imaging, for 2/3 of all diagnostic medical isotope procedures In the United States. Tc-99m has a relatively short half life of 6

  18. Combined current collector and electrode separator

    DOE Patents [OSTI]

    Gerenser, Robert J.; Littauer, Ernest L.

    1983-01-01

    This relates to reactive metal cells wherein there is a cathode and a consumable anode. It is necessary to separate the cathode from the anode so that an electrolyte may constantly flow over the face of the anode opposing the cathode. It has been found that this separator may also beneficially function as a current collector. The combined current collector and separator includes a peripheral supporting frame of which a portion may function as a bus-bar. A plurality of bars or ribs extend in parallel relation across the opening defined by the supporting frame and are electrically connected to the bus-bar portion. It is preferred that each bar or rib have a pointed or line edge which will engage and slightly bite into the associated anode to maintain the bar or rib in electrical contact with the anode. This abstract forms no part of the specification of this application and is not to be construed as limiting the claims of the application.

  19. Combined current collector and electrode separator

    DOE Patents [OSTI]

    Gerenser, R.J.; Littauer, E.L.

    1983-08-23

    This relates to reactive metal cells wherein there is a cathode and a consumable anode. It is necessary to separate the cathode from the anode so that an electrolyte may constantly flow over the face of the anode opposing the cathode. It has been found that this separator may also beneficially function as a current collector. The combined current collector and separator includes a peripheral supporting frame of which a portion may function as a bus-bar. A plurality of bars or ribs extend in parallel relation across the opening defined by the supporting frame and are electrically connected to the bus-bar portion. It is preferred that each bar or rib have a pointed or line edge which will engage and slightly bite into the associated anode to maintain the bar or rib in electrical contact with the anode. This abstract forms no part of the specification of this application and is not to be construed as limiting the claims of the application. 6 figs.

  20. Transient digitizer with displacement current samplers

    DOE Patents [OSTI]

    McEwan, Thomas E.

    1996-01-01

    A low component count, high speed sample gate, and digitizer architecture using the sample gates is based on use of a signal transmission line, a strobe transmission line and a plurality of sample gates connected to the sample transmission line at a plurality of positions. The sample gates include a strobe pickoff structure near the strobe transmission line which generates a charge displacement current in response to propagation of the strobe signal on the strobe transmission line sufficient to trigger the sample gate. The sample gate comprises a two-diode sampling bridge and is connected to a meandered signal transmission line at one end and to a charge-holding cap at the other. The common cathodes are reverse biased. A voltage step is propagated down the strobe transmission line. As the step propagates past a capacitive pickoff, displacement current i=c(dv/dT), flows into the cathodes, driving the bridge into conduction and thereby charging the charge-holding capacitor to a value related to the signal. A charge amplifier converts the charge on the charge-holding capacitor to an output voltage. The sampler is mounted on a printed circuit board, and the sample transmission line and strobe transmission line comprise coplanar microstrips formed on a surface of the substrate. Also, the strobe pickoff structure may comprise a planar pad adjacent the strobe transmission line on the printed circuit board.

  1. Transient digitizer with displacement current samplers

    DOE Patents [OSTI]

    McEwan, T.E.

    1996-05-21

    A low component count, high speed sample gate, and digitizer architecture using the sample gates is based on use of a signal transmission line, a strobe transmission line and a plurality of sample gates connected to the sample transmission line at a plurality of positions. The sample gates include a strobe pickoff structure near the strobe transmission line which generates a charge displacement current in response to propagation of the strobe signal on the strobe transmission line sufficient to trigger the sample gate. The sample gate comprises a two-diode sampling bridge and is connected to a meandered signal transmission line at one end and to a charge-holding cap at the other. The common cathodes are reverse biased. A voltage step is propagated down the strobe transmission line. As the step propagates past a capacitive pickoff, displacement current i=c(dv/dT), flows into the cathodes, driving the bridge into conduction and thereby charging the charge-holding capacitor to a value related to the signal. A charge amplifier converts the charge on the charge-holding capacitor to an output voltage. The sampler is mounted on a printed circuit board, and the sample transmission line and strobe transmission line comprise coplanar microstrips formed on a surface of the substrate. Also, the strobe pickoff structure may comprise a planar pad adjacent the strobe transmission line on the printed circuit board. 16 figs.

  2. Current Density Scaling in Electrochemical Flow Capacitors

    SciTech Connect (OSTI)

    Hoyt, NC; Wainright, JS; Savinell, RF

    2015-02-18

    Electrochemical flow capacitors (EFCs) are a recently developed energy storage technology. One of the principal performance metrics of an EFC is the steady-state electrical current density that it can accept or deliver. Numerical models exist to predict this performance for specific cases, but here we present a study of how the current varies with respect to the applied cell voltage, flow rate, cell dimensions, and slurry properties using scaling laws. The scaling relationships are confirmed by numerical simulations and then subsequently by comparison to results from symmetric cell EFC experiments. This modeling approach permits the delimitation of three distinct operational regimes dependent on the values of two nondimensional combinations of the pertinent variables (specifically, a capacitive Graetz number and a conductivity ratio). Lastly, the models and nondimensional numbers are used to provide design guidance in terms of criteria for proper EFC operation. (C) The Author(s) 2015. Published by ECS. This is an open access article distributed under the terms of the Creative Commons Attribution 4.0 License (CC BY, http://creativecommons.org/licenses/by/4.0/), which permits unrestricted reuse of the work in any medium, provided the original work is properly cited. All rights reserved.

  3. Integrated current collector and catalyst support

    DOE Patents [OSTI]

    Bregoli, L.J.

    1984-10-17

    An integrated current collecting electrode for a molten carbonate fuel cell includes a corrugated metal conductive strip positioned in contact with a catalyst layer. The corrugations of the metal strip form a plurality of gas channels immediately adjacent the surface of the catalyst through which a reactant gas flows. Each channel is filled with a particulate material to maintain separation between the metal strip and the catalyst in ensuring gas channel integrity. The catalyst may be in the form of a compacted, particulate material provided the particle size of the material within the gas channels is larger than that of the catalyst particles to prevent catalyst migration to the metal conductor and provide reactant gas access to the catalyst layer. The gas channels formed by the corrugations of the metal strip are arranged in an offset pattern along the direction of gas flow for improved reactant gas distribution to the catalyst layer. The particulate material positioned within the gas flow channels may be a ceramic conductor such as a perovskite or a spinel for enhanced current collection.

  4. Integrated current collector and catalyst support

    DOE Patents [OSTI]

    Bregoli, Lawrence J.

    1985-10-22

    An integrated current collecting electrode for a molten carbonate fuel cell includes a corrugated metal conductive strip positioned in contact with a catalyst layer. The corrugations of the metal strip form a plurality of gas channels immediately adjacent the surface of the catalyst through which a reactant gas flows. Each channel is filled with a particulate material to maintain separation between the metal strip and the catalyst in ensuring gas channel integrity. The catalyst may be in the form of a compacted, particulate material provided the particle size of the material within the gas channels is larger than that of the catalyst particles to prevent catalyst migration to the metal conductor and provide reactant gas access to the catalyst layer. The gas channels formed by the corrugations of the metal strip are arranged in an offset pattern along the direction of gas flow for improved reactant gas distribution to the catalyst layer. The particulate material positioned within the gas flow channels may be a ceramic conductor such as a perovskite or a spinel for enhanced current collection.

  5. Current and Future Research at DANCE

    DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)

    Jandel, M.; Baramsai, B.; Bredeweg, T. A.; Couture, A.; Hayes, A.; Kawano, T.; Mosby, S.; Rusev, G.; Stetcu, I.; Taddeucci, T. N.; et al

    2015-05-28

    An overview of the current experimental program on measurements of neutron capture and neutron induced fission at the Detector for Advanced Neutron Capture Experiments (DANCE) is presented. Three major projects are currently under way: 1) high precision measurements of neutron capture cross sections on Uranium isotopes, 2) research aimed at studies of the short-lived actinide isomer production in neutron capture on 235U and 3) measurements of correlated data of fission observables. New projects include developments of auxiliary detectors to improve the capability of DANCE. We are building a compact, segmented NEUtron detector Array at DANCE (NEUANCE), which will be installedmore » in the central cavity of the DANCE array. It will thus provide experimental information on prompt fission neutrons in coincidence with the prompt fission gamma-rays measured by 160 BaF2 crystals of DANCE. Additionally, unique correlated data will be obtained for neutron capture and neutron-induced fission using the DANCE-NEUANCE experimental set up in the future.« less

  6. Anthropometry for WorldSID, a World-Harmonized Midsize Male Side Impact Crash Dummy

    SciTech Connect (OSTI)

    S. Moss; Z. Wang; M. Salloum; M. Reed; M. Van Ratingen; D. Cesari; R. Scherer; T. Uchimura; M. Beusenberg

    2000-06-19

    The WorldSID project is a global effort to design a new generation side impact crash test dummy under the direction of the International Organization for Standardization (ISO). The first WorldSID crash dummy will represent a world-harmonized mid-size adult male. This paper discusses the research and rationale undertaken to define the anthropometry of a world standard midsize male in the typical automotive seated posture. Various anthropometry databases are compared region by region and in terms of the key dimensions needed for crash dummy design. The Anthropometry for Motor Vehicle Occupants (AMVO) dataset, as established by the University of Michigan Transportation Research Institute (UMTRI), is selected as the basis for the WorldSID mid-size male, updated to include revisions to the pelvis bone location. The proposed mass of the dummy is 77.3kg with full arms. The rationale for the selected mass is discussed. The joint location and surface landmark database is appended to this paper.

  7. DIFFERENTIAL SENSITIVITY OF MALE GERM CELLS TO MAINSTREAM AND SIDESTREAM TOBACCO SMOKE IN THE MOUSE

    SciTech Connect (OSTI)

    Polyzos, Aris; Schmid, Thomas Ernst; Pina-Guzman, Belem; Quintanilla-Vega, Betzabet; Marchetti, Francesco

    2009-03-13

    Cigarette smoking in men has been associated with increased chromosomal abnormalities in sperm and with increased risks for spontaneous abortions, birth defects and neonatal death. Little is known, however, about the reproductive consequences of paternal exposure to second-hand smoke. We used a mouse model to investigate the effects of paternal exposure to sidestream (SS) smoke, the main constituent of second-hand smoke, on the genetic integrity and function of sperm, and to determine whether male germ cells were equally sensitive to mainstream (MS) and SS smoke. A series of sperm DNA quality and reproductive endpoints were investigated after exposing male mice for two weeks to MS or SS smoke. Our results indicated that: (i) only SS smoke significantly affected sperm motility; (ii) only MS smoke induced DNA strand breaks in sperm; (iii) both MS and SS smoke increased sperm chromatin structure abnormalities; and (iv) MS smoke affected both fertilization and the rate of early embryonic development, while SS smoke affected fertilization only. These results show that MS and SS smoke have differential effects on the genetic integrity and function of sperm and provide further evidence that male exposure to second-hand smoke, as well as direct cigarette smoke, may diminish a couple's chance for a successful pregnancy and the birth of a healthy baby.

  8. Fault current limiter with shield and adjacent cores

    DOE Patents [OSTI]

    Darmann, Francis Anthony; Moriconi, Franco; Hodge, Eoin Patrick

    2013-10-22

    In a fault current limiter (FCL) of a saturated core type having at least one coil wound around a high permeability material, a method of suppressing the time derivative of the fault current at the zero current point includes the following step: utilizing an electromagnetic screen or shield around the AC coil to suppress the time derivative current levels during zero current conditions.

  9. Unconventional petroleum: a current awareness bulletin

    SciTech Connect (OSTI)

    Grissom, M.C.

    1983-10-30

    The summaries in this bulletin cover both secondary and tertiary recovery of petroleum and the following topics under Oil Shales and Tar Sands: reserves and exploration; site geology and hydrology; drilling, fracturing, and mining; oil production, recovery, and refining; properties and composition; direct uses and by-products; health and safety; marketing and economics; waste research and management; environmental aspects; and regulations. These summaries and older citations to information on petroleum, oil shales, and tar sands back to the 1960's are available for on-line searching and retrieval on the Energy Data Base using the DOE/RECON system or commercial on-line retrieval systems. Retrospective searches can be made on any aspect of petroleum, oil shales, or tar sands, or customized profiles can be developed to provide current information for each user's needs.

  10. Self field triggered superconducting fault current limiter

    DOE Patents [OSTI]

    Tekletsadik, Kasegn D.

    2008-02-19

    A superconducting fault current limiter array with a plurality of superconductor elements arranged in a meanding array having an even number of supconductors parallel to each other and arranged in a plane that is parallel to an odd number of the plurality of superconductors, where the odd number of supconductors are parallel to each other and arranged in a plane that is parallel to the even number of the plurality of superconductors, when viewed from a top view. The even number of superconductors are coupled at the upper end to the upper end of the odd number of superconductors. A plurality of lower shunt coils each coupled to the lower end of each of the even number of superconductors and a plurality of upper shunt coils each coupled to the upper end of each of the odd number of superconductors so as to generate a generally orthoganal uniform magnetic field during quenching using only the magenetic field generated by the superconductors.

  11. HIGH CURRENT ENERGY RECOVERY LINAC AT BNL.

    SciTech Connect (OSTI)

    LITVINENKO,V.N.; BEN-ZVI,I.; BARTON,D.S.; ET AL.

    2005-05-16

    We present the design and parameters of an energy recovery linac (ERL) facility, which is under construction in the Collider-Accelerator Department at BNL. This R&D facility has the goal of demonstrating CW operation of an ERL with an average beam current in the range of 0.1-1 ampere and with very high efficiency of energy recovery. The possibility of a future upgrade to a two-pass ERL is also being considered. The heart of the facility is a 5-cell 703.75 MHz super-conducting RF linac with strong Higher Order Mode (HOM) damping. The flexible lattice of the ERL provides a test-bed for exploring issues of transverse and longitudinal instabilities and diagnostics of intense CW electron beams. This ERL is also perfectly suited for a far-IR FEL. We present the status and plans for construction and commissioning of this facility.

  12. High Current Energy Recovery Linac at BNL

    SciTech Connect (OSTI)

    Vladimir N. Litvinenko; Donald Barton; D. Beavis; Ilan Ben-Zvi; Michael Blaskiewicz; J.M. Brennan; A. Burrill; R. Calaga; P. Cameron; X. Chang; Roger Connolly; D. Gassner; H. Hahn; A. Hershcovitch; H.C. Hseuh; P. Johnson; D. Kayran; J. Kewisch; R. Lambiase; G. McIntyre; W. Meng; T. C. Nehring; A. Nicoletti; D. Pate; J. Rank; T. Roser; T. Russo; J. Scaduto; K. Smith; T. Srinivasan-Rao; N. Williams; K.-C. Wu; Vitaly Yakimenko; K. Yip; A. Zaltsman; Y. Zhao; H. Bluem; A. Burger; Mike Cole; A. Favale; D. Holmes; John Rathke; Tom Schultheiss; A. Todd; J. Delayen; W. Funk; L. Phillips; Joe Preble

    2004-08-01

    We present the design, the parameters of a small test Energy Recovery Linac (ERL) facility, which is under construction at Collider-Accelerator Department, BNL. This R&D facility has goals to demonstrate CW operation of ERL with average beam current in the range of 0.1 - 1 ampere, combined with very high efficiency of energy recovery. A possibility for future up-grade to a two-pass ERL is considered. The heart of the facility is a 5-cell 700 MHz super-conducting RF linac with HOM damping. Flexible lattice of ERL provides a test-bed for testing issues of transverse and longitudinal instabilities and diagnostics of intense CW e-beam. ERL is also perfectly suited for a far-IR FEL. We present the status and our plans for construction and commissioning of this facility.

  13. Current problems in plasma spray processing

    SciTech Connect (OSTI)

    Berndt, C.C.; Brindley, W.; Goland, A.N.; Herman, H.; Houck, D.L.; Jones, K.; Miller, R.A.; Neiser, R.; Riggs, W.; Sampath, S.; Smith, M.; Spanne, P.

    1991-12-31

    This detailed report summarizes 8 contributions from a thermal spray conference that was held in late 1991 at Brookhaven National Laboratory (Upton, Long Island, NY, USA). The subject of ``Plasma Spray Processing`` is presented under subject headings of Plasma-particle interactions, Deposit formation dynamics, Thermal properties of thermal barrier coatings, Mechanical properties of coatings, Feed stock materials, Porosity: An integrated approach, Manufacture of intermetallic coatings, and Synchrotron x-ray microtomographic methods for thermal spray materials. Each section is intended to present a concise statement of a specific practical and/or scientific problem, then describe current work that is being performed to investigate this area, and finally to suggest areas of research that may be fertile for future activity.

  14. Current problems in plasma spray processing

    SciTech Connect (OSTI)

    Berndt, C.C.; Brindley, W.; Goland, A.N.; Herman, H.; Houck, D.L.; Jones, K.; Miller, R.A.; Neiser, R.; Riggs, W.; Sampath, S.; Smith, M.; Spanne, P. . Thermal Spray Lab.)

    1991-01-01

    This detailed report summarizes 8 contributions from a thermal spray conference that was held in late 1991 at Brookhaven National Laboratory (Upton, Long Island, NY, USA). The subject of Plasma Spray Processing'' is presented under subject headings of Plasma-particle interactions, Deposit formation dynamics, Thermal properties of thermal barrier coatings, Mechanical properties of coatings, Feed stock materials, Porosity: An integrated approach, Manufacture of intermetallic coatings, and Synchrotron x-ray microtomographic methods for thermal spray materials. Each section is intended to present a concise statement of a specific practical and/or scientific problem, then describe current work that is being performed to investigate this area, and finally to suggest areas of research that may be fertile for future activity.

  15. Left-Wing Extremism: The Current Threat

    SciTech Connect (OSTI)

    Karl A. Seger

    2001-04-30

    Left-wing extremism is ''alive and well'' both in the US and internationally. Although the current domestic terrorist threat within the U. S. is focused on right-wing extremists, left-wing extremists are also active and have several objectives. Leftist extremists also pose an espionage threat to U.S. interests. While the threat to the U.S. government from leftist extremists has decreased in the past decade, it has not disappeared. There are individuals and organizations within the U.S. who maintain the same ideology that resulted in the growth of left-wing terrorism in this country in the 1970s and 1980s. Some of the leaders from that era are still communicating from Cuba with their followers in the U.S., and new leaders and groups are emerging.

  16. Eddy-current-damped microelectromechanical switch

    DOE Patents [OSTI]

    Christenson, Todd R.; Polosky, Marc A.

    2009-12-15

    A microelectromechanical (MEM) device is disclosed that includes a shuttle suspended for movement above a substrate. A plurality of permanent magnets in the shuttle of the MEM device interact with a metal plate which forms the substrate or a metal portion thereof to provide an eddy-current damping of the shuttle, thereby making the shuttle responsive to changes in acceleration or velocity of the MEM device. Alternately, the permanent magnets can be located in the substrate, and the metal portion can form the shuttle. An electrical switch closure in the MEM device can occur in response to a predetermined acceleration-time event. The MEM device, which can be fabricated either by micromachining or LIGA, can be used for sensing an acceleration or deceleration event (e.g. in automotive applications such as airbag deployment or seat belt retraction).

  17. Eddy-current-damped microelectromechanical switch

    DOE Patents [OSTI]

    Christenson, Todd R.; Polosky, Marc A.

    2007-10-30

    A microelectromechanical (MEM) device is disclosed that includes a shuttle suspended for movement above a substrate. A plurality of permanent magnets in the shuttle of the MEM device interact with a metal plate which forms the substrate or a metal portion thereof to provide an eddy-current damping of the shuttle, thereby making the shuttle responsive to changes in acceleration or velocity of the MEM device. Alternately, the permanent magnets can be located in the substrate, and the metal portion can form the shuttle. An electrical switch closure in the MEM device can occur in response to a predetermined acceleration-time event. The MEM device, which can be fabricated either by micromachining or LIGA, can be used for sensing an acceleration or deceleration event (e.g. in automotive applications such as airbag deployment or seat belt retraction).

  18. Estrous cycle affects the neurochemical and neurobehavioral profile of carvacrol-treated female rats

    SciTech Connect (OSTI)

    Trabace, L.; Zotti, M.; Morgese, M.G.; Tucci, P.; Colaianna, M.; Schiavone, S.; Avato, P.; Cuomo, V.

    2011-09-01

    Carvacrol is the major constituent of essential oils from aromatic plants. It showed antimicrobial, anticancer and antioxidant properties. Although it was approved for food use and included in the chemical flavorings list, no indication on its safety has been estimated. Since the use of plant extracts is relatively high among women, aim of this study was to evaluate carvacrol effects on female physiology and endocrine profiles by using female rats in proestrus and diestrus phases. Serotonin and metabolite tissue content in prefrontal cortex and nucleus accumbens, after carvacrol administration (0.15 and 0.45 g/kg p.o.), was measured. Drug effects in behavioral tests for alterations in motor activity, depression, anxiety-related behaviors and endocrine alterations were also investigated. While in proestrus carvacrol reduced serotonin and metabolite levels in both brain areas, no effects were observed in diestrus phase. Only in proestrus phase, carvacrol induced a depressive-like behavior in forced swimming test, without accompanying changes in ambulation. The improvement of performance in FST after subchronic treatment with fluoxetine (20 mg/kg) suggested a specific involvement of serotonergic system. No differences were found across the groups with regard to self-grooming behavior. Moreover, in proestrus phase, carvacrol reduced only estradiol levels without binding hypothalamic estradiol receptors. Our study showed an estrous-stage specific effect of carvacrol on depressive behaviors and endocrine parameters, involving serotonergic system. Given the wide carvacrol use not only as feed additive, but also as cosmetic essence and herbal remedy, our results suggest that an accurate investigation on the effects of its chronic exposure is warranted. - Highlights: > Carvacrol induced a depressive-like phenotype in rats, depending on ovarian cyclicity. > Carvacrol selectively reduced serotonin content in female rats in proestrus phase. > Carvacrol reduced serotonin levels in areas belonging to the emotional circuit. > Carvacrol reduced plasma estradiol levels only during the proestrus phase.

  19. Protection of the female reproductive system from natural and artificial insults

    DOE Patents [OSTI]

    Tilly, Jonathan L.; Kolesnick, Richard N.

    2010-12-14

    Described are methods for protecting the female reproductive system against natural and artificial insults by administering to women a composition comprising an agent that antagonizes one or more acid sphingomyelinase (ASMase) gene products. Specifically, methods disclosed herein serve to protect women's germline from damage resulting from cancer therapy regimens including chemotherapy or radiotherapy. In one aspect, the method preserves, enhances, or revives ovarian function in women, by administering to women a composition containing sphingosine-1-phosphate, or an analog thereof. Also disclosed are methods to prevent or ameliorate menopausal syndromes and to improve in vitro fertilization techniques.

  20. Spin-current diode with a ferromagnetic semiconductor (Journal...

    Office of Scientific and Technical Information (OSTI)

    The spin-current diode, a low dissipation device, may have important applications in spintronics, as the conventional charge-current diode does in electronics. Authors: Sun, ...

  1. MHK Technologies/Current Catcher | Open Energy Information

    Open Energy Info (EERE)

    Primary Organization Offshore Islands Ltd Technology Resource Click here CurrentTidal Technology Type Click here Axial Flow Turbine Technology Description The Current...

  2. MHK Technologies/Uldolmok Pilot Tidal Current Power Plant | Open...

    Open Energy Info (EERE)

    Uldolmok Pilot Tidal Current Power Plant < MHK Technologies Jump to: navigation, search << Return to the MHK database homepage Uldolmok Pilot Tidal Current Power Plant.jpg...

  3. OFPP Current Issues - Anne Rung, OFPP Administrator | Department...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    OFPP Current Issues - Anne Rung, OFPP Administrator OFPP Current Issues - Anne Rung, OFPP Administrator We're Moving Forward in Three Areas Launching Category Management Driving ...

  4. Fault Current Limiters (FCL) Fact Sheet | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Fault Current Limiters (FCL) Fact Sheet Fault Current Limiters (FCL) Fact Sheet Plugging America Into the Future of Power: Superconducting & Solid-state Power Equipment What are ...

  5. Current Trends in Policy - What's new? - Berta Schreiber, Director...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Current Trends in Policy - What's new? - Berta Schreiber, Director, Office of Policy, OAPM Current Trends in Policy - What's new? - Berta Schreiber, Director, Office of Policy, ...

  6. ENERGY STAR PortfolioManager Current Year Instructions

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Current Year" Time frame Select "Multiple Properties" Using filters, choose properties to ... it as an Excel file Open downloaded "Current Year" report, select all and copy In ...

  7. Current Status of the Spent Nuclear Fuel Management Program in...

    Office of Scientific and Technical Information (OSTI)

    Current Status of the Spent Nuclear Fuel Management Program in the United States. Citation Details In-Document Search Title: Current Status of the Spent Nuclear Fuel Management...

  8. Low Cost, High Temperature, High Ripple Current DC Bus Capacitors...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Low Cost, High Temperature, High Ripple Current DC Bus Capacitors Low Cost, High Temperature, High Ripple Current DC Bus Capacitors 2010 DOE Vehicle Technologies and Hydrogen...

  9. Alternating current loss reduction for rectangular busbars by...

    Office of Scientific and Technical Information (OSTI)

    Alternating current loss reduction for rectangular busbars by covering their edges with low permeable magnetic caps Citation Details In-Document Search Title: Alternating current...

  10. Research Site Locations for Current EERE Postdoctoral Awards...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Site Locations for Current EERE Postdoctoral Awards Research Site Locations for Current EERE Postdoctoral Awards Image icon mappostdoctoral-researchawards.png More Documents & ...

  11. Surface-Modified Copper Current Collector for Lithium Ion Battery...

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Copper Current Collector for Lithium Ion Battery Anode Lawrence Berkeley National ... the adhesion of anode laminate to copper current collectors in lithium ion batteries. ...

  12. Voith Hydro Ocean Current Technologies | Open Energy Information

    Open Energy Info (EERE)

    Ocean Current Technologies Jump to: navigation, search Name: Voith Hydro Ocean Current Technologies Place: Germany Sector: Hydro Product: Germany-based JV between Voith Hydro and...

  13. Drivers and Barriers in the Current Concentrated Solar Power...

    Open Energy Info (EERE)

    Drivers and Barriers in the Current Concentrated Solar Power (CSP) Market (Webinar) Jump to: navigation, search Tool Summary LAUNCH TOOL Name: Drivers and Barriers in the Current...

  14. Assessment of Energy Production Potential from Ocean Currents...

    Broader source: Energy.gov (indexed) [DOE]

    of ocean currents in the United States and the database created with that data. Assessment of Energy Production Potential from Ocean Currents along the United States Coastline...

  15. DARK CURRENT-VOLTAGE MEASUREMENTS ON PHOTOVOLTAIC MODULES AS...

    Office of Scientific and Technical Information (OSTI)

    DARK CURRENT-VOLTAGE MEASUREMENTS ON PHOTOVOLTAIC MODULES AS A DIAGNOSTIC OR MANUFACTURING ... saturation currents) that dictate the electrical performance of a photovoltaic device. ...

  16. MHK Technologies/THOR Ocean Current Turbine | Open Energy Information

    Open Energy Info (EERE)

    THOR Ocean Current Turbine < MHK Technologies Jump to: navigation, search << Return to the MHK database homepage THOR Ocean Current Turbine.jpg Technology Profile Primary...

  17. MHK Technologies/Ocean Current Linear Turbine | Open Energy Informatio...

    Open Energy Info (EERE)

    Current Linear Turbine < MHK Technologies Jump to: navigation, search << Return to the MHK database homepage Ocean Current Linear Turbine.jpg Technology Profile Primary...

  18. MHK Technologies/EnCurrent Turbine | Open Energy Information

    Open Energy Info (EERE)

    EnCurrent Turbine < MHK Technologies Jump to: navigation, search << Return to the MHK database homepage EnCurrent Turbine.jpg Technology Profile Primary Organization New Energy...

  19. MHK ISDB/Instruments/Nortek Aquadopp Current Meter | Open Energy...

    Open Energy Info (EERE)

    Velocity Planar Measurement (Current), 3D Velocity Volumetric Measurement (Current), Density (Ice), Direction (Ice), Speed (Ice), Thickness (Ice), Pressure (Tidal), Sea Surface...

  20. Indonesia and Climate Change: Current Status and Policies | Open...

    Open Energy Info (EERE)

    Indonesia and Climate Change: Current Status and Policies Jump to: navigation, search Name Indonesia and Climate Change: Current Status and Policies AgencyCompany Organization...

  1. Assessment of Energy Production Potential from Ocean Currents...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Assessment of Energy Production Potential from Ocean Currents along the United States Coastline Assessment of Energy Production Potential from Ocean Currents along the United...

  2. EXTENDED SCHMIDT LAW: ROLE OF EXISTING STARS IN CURRENT STAR...

    Office of Scientific and Technical Information (OSTI)

    EXTENDED SCHMIDT LAW: ROLE OF EXISTING STARS IN CURRENT STAR FORMATION Citation Details In-Document Search Title: EXTENDED SCHMIDT LAW: ROLE OF EXISTING STARS IN CURRENT STAR ...

  3. Plasmoid Formation in Current Sheet with Finite Normal Magnetic...

    Office of Scientific and Technical Information (OSTI)

    Plasmoid Formation in Current Sheet with Finite Normal Magnetic Component Citation Details In-Document Search Title: Plasmoid Formation in Current Sheet with Finite Normal Magnetic ...

  4. Aviation Enterprises Ltd see Marine Current Turbines Ltd | Open...

    Open Energy Info (EERE)

    Aviation Enterprises Ltd see Marine Current Turbines Ltd Jump to: navigation, search Name: Aviation Enterprises Ltd see Marine Current Turbines Ltd Region: United Kingdom Sector:...

  5. Current Drive for Plasma Via Vertically-Structured Permanent...

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Current Drive for Plasma Via Vertically-Structured Permanent Magnet System. This invention uses the rotatoin of permanent magnets to generate a plasma current with toroidal fusion...

  6. New Airborne Technology Measures Ocean Surface Currents for Offshore...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Airborne Technology Measures Ocean Surface Currents for Offshore Energy Production and Emergency Rescue Missions New Airborne Technology Measures Ocean Surface Currents for ...

  7. Direct-Current Resistivity Survey At Cove Fort Area (Warpinski...

    Open Energy Info (EERE)

    Direct-Current Resistivity Survey At Cove Fort Area (Warpinski, Et Al., 2002) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Direct-Current...

  8. Direct-Current Resistivity At Honokowai Area (Thomas, 1986) ...

    Open Energy Info (EERE)

    Direct-Current Resistivity At Honokowai Area (Thomas, 1986) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Direct-Current Resistivity At...

  9. Direct-Current Resistivity At Lualualei Valley Area (Thomas,...

    Open Energy Info (EERE)

    Direct-Current Resistivity At Lualualei Valley Area (Thomas, 1986) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Direct-Current Resistivity At...

  10. Direct-Current Resistivity Survey At Hualalai Northwest Rift...

    Open Energy Info (EERE)

    Direct-Current Resistivity Survey At Hualalai Northwest Rift Area (Thomas, 1986) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Direct-Current...

  11. Direct-Current Resistivity At Hualalai Northwest Rift Area (Thomas...

    Open Energy Info (EERE)

    Direct-Current Resistivity At Hualalai Northwest Rift Area (Thomas, 1986) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Direct-Current...

  12. Direct-Current Resistivity Survey At Lualualei Valley Area (Thomas...

    Open Energy Info (EERE)

    Direct-Current Resistivity Survey At Lualualei Valley Area (Thomas, 1986) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Direct-Current...

  13. Direct-Current Resistivity Survey At Roosevelt Hot Springs Area...

    Open Energy Info (EERE)

    Direct-Current Resistivity Survey At Roosevelt Hot Springs Area (Combs 2006) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Direct-Current...

  14. Direct-Current Resistivity Survey At Honokowai Area (Thomas,...

    Open Energy Info (EERE)

    Direct-Current Resistivity Survey At Honokowai Area (Thomas, 1986) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Direct-Current Resistivity...

  15. Direct-Current Resistivity Survey At Cove Fort Area - Liquid...

    Open Energy Info (EERE)

    Direct-Current Resistivity Survey At Cove Fort Area - Liquid (Combs 2006) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Direct-Current...

  16. Direct-Current Resistivity At Lahaina-Kaanapali Area (Thomas...

    Open Energy Info (EERE)

    Direct-Current Resistivity At Lahaina-Kaanapali Area (Thomas, 1986) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Direct-Current Resistivity At...

  17. Direct-Current Resistivity Survey At Lahaina-Kaanapali Area ...

    Open Energy Info (EERE)

    Direct-Current Resistivity Survey At Lahaina-Kaanapali Area (Thomas, 1986) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Direct-Current...

  18. Current and Past 48 Hours HMS Observations - Hanford Site

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Hanford Meteorological Station Current and Past 48 Hours HMS Observations Hanford Meteorological Station Real Time Met Data from Around the Site Current and Past 48 Hours HMS ...

  19. Pepco Update on Current Construction Work and Mirant Generation...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Pepco Update on Current Construction Work and Mirant Generation Needs for Pepco's Planned June Line Outage Pepco Update on Current Construction Work and Mirant Generation Needs for...

  20. Characterization of high-current, high-temperature superconductor current lead elements

    SciTech Connect (OSTI)

    Niemann, R.C.; Evans, D.J.; Fisher, B.L.; Brockenborough, W.E.; Roberts, P.R.; Rodenbush, A.J.

    1996-08-01

    The refrigeration loads of current leads for superconducting magnets can be significantly reduced by using high-temperature superconductor (HTS) leads. An HTS conductor type that is well suited for this application is a laminated sintered stack of HTS powder-in-tube (PIT) tapes. The superconducting elements are normally characterized by their manufacturer by measuring critical currents at 77 K in self field. Additional characterization, which correlates electrical performance at 77 K and at lower temperatures with applied magnetic fields, provides the current lead designer and conductor element manufacturer with critical information. For HTS conductor elements comprising a laminated and sintered stack of Bi-2223 PIT tapes having an alloyed Ag sheath, this characterization uses variable applied fields and operating temperatures.

  1. Radiation induced leakage current and stress induced leakage current in ultra-thin gate oxides

    SciTech Connect (OSTI)

    Ceschia, M.; Paccagnella, A.; Cester, A.; Scarpa, A.; Ghidini, G.

    1998-12-01

    Low-field leakage current has been measured in thin oxides after exposure to ionizing radiation. This Radiation Induced Leakage Current (RILC) can be described as an inelastic tunneling process mediated by neutral traps in the oxide, with an energy loss of about 1 eV. The neutral trap distribution is influenced by the oxide field applied during irradiation, thus indicating that the precursors of the neutral defects are charged, likely being defects associated to trapped holes. The maximum leakage current is found under zero-field condition during irradiation, and it rapidly decreases as the field is enhanced, due to a displacement of the defect distribution across the oxide towards the cathodic interface. The RILC kinetics are linear with the cumulative dose, in contrast with the power law found on electrically stressed devices.

  2. Conversion of pure spin current to charge current in amorphous bismuth

    SciTech Connect (OSTI)

    Emoto, H.; Ando, Y.; Shinjo, T.; Shiraishi, M.; Shikoh, E.; Fuseya, Y.

    2014-05-07

    Spin Hall angle and spin diffusion length in amorphous bismuth (Bi) are investigated by using conversion of a pure spin current to a charge current in a spin pumping technique. In Bi/Ni{sub 80}Fe{sub 20}/Si(100) sample, a clear direct current (DC) electromotive force due to the inverse spin Hall effect of the Bi layer is observed at room temperature under a ferromagnetic resonance condition of the Ni{sub 80}Fe{sub 20} layer. From the Bi thickness dependence of the DC electromotive force, the spin Hall angle and the spin diffusion length of the amorphous Bi film are estimated to be 0.02 and 8?nm, respectively.

  3. Neutrino-Nucleon Neutrino-Nucleon Neutral Current Elastic Neutral Current Elastic

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Neutrino-Nucleon Neutral Current Elastic Neutral Current Elastic Interactions in MiniBooNE Interactions in MiniBooNE Denis Perevalov Denis Perevalov University of Alabama University of Alabama for the MiniBooNE collaboration for the MiniBooNE collaboration presented by: Rex Tayloe, Indiana University Nuint '09 2 Neutrino-Nucleon NC Elastic Scattering    p , n    p , n   Z p,n p,n   - The most fundamental NC probe of the nucleus/nucleon. - Unlike CC

  4. Superconducting matrix fault current limiter with current-driven trigger mechanism

    DOE Patents [OSTI]

    Yuan, Xing

    2008-04-15

    A modular and scalable Matrix-type Fault Current Limiter (MFCL) that functions as a "variable impedance" device in an electric power network, using components made of superconducting and non-superconducting electrically conductive materials. An inductor is connected in series with the trigger superconductor in the trigger matrix and physically surrounds the superconductor. The current surge during a fault will generate a trigger magnetic field in the series inductor to cause fast and uniform quenching of the trigger superconductor to significantly reduce burnout risk due to superconductor material non-uniformity.

  5. Impact of Radiotherapy on Fertility, Pregnancy, and Neonatal Outcomes in Female Cancer Patients

    SciTech Connect (OSTI)

    Wo, Jennifer Y.; Viswanathan, Akila N.

    2009-04-01

    Purpose: Radiation has many potential long-term effects on cancer survivors. Female cancer patients may experience decreased fertility depending on the site irradiated. Oncologists should be aware of these consequences and discuss options for fertility preservation before initiating therapy. Methods and Materials: A comprehensive review of the existing literature was conducted. Studies reporting the outcomes for female patients treated with cranio-spinal, abdominal, or pelvic radiation reporting fertility, pregnancy, or neonatal-related outcomes were reviewed. Results: Cranio-spinal irradiation elicited significant hormonal changes in women that affected their ability to become pregnant later in life. Women treated with abdomino-pelvic radiation have an increased rate of uterine dysfunction leading to miscarriage, preterm labor, low birth weight, and placental abnormalities. Early menopause results from low-dose ovarian radiation. Ovarian transposition may decrease the rates of ovarian dysfunction. Conclusions: There is a dose-dependent relationship between ovarian radiation therapy (RT) and premature menopause. Patients treated with RT must be aware of the impact of treatment on fertility and explore appropriate options.

  6. Current-potential characteristics of electrochemical systems

    SciTech Connect (OSTI)

    Battaglia, V.S.

    1993-07-01

    This dissertation contains investigations in three distinct areas. Chapters 1 and 2 provide an analysis of the effects of electromagnetic phenomena during the initial stages of cell discharge. Chapter 1 includes the solution to Maxwell`s equations for the penetration of the axial component of an electric field into an infinitely long cylindrical conductor. Chapter 2 contains the analysis of the conductor included in a radial circuit. Chapter 3 provides a complete description of the equations that describe the growth of an oxide film. A finite difference program was written to solve the equations. The system investigated is the iron/iron oxide in a basic, aqueous solution. Chapters 4 and 5 include the experimental attempts for replacing formaldehyde with an innocuous reducing agent for electroless deposition. In chapter 4, current-versus-voltage curves are provided for a sodium thiosulfate bath in the presence of a copper disk electrode. Also provided are the cathodic polarization curves of a copper/EDTA bath in the presence of a copper electrode. Chapter 5 contains the experimental results of work done with sodium hypophosphite as a reducing agent. Mixed-potential-versus-time curves for solutions containing various combinations of copper sulfate, nickel chloride, and hypophosphite in the presence of a palladium disk electrode provide an indication of the reducing power of the solutions.

  7. Safety pharmacology Current and emerging concepts

    SciTech Connect (OSTI)

    Hamdam, Junnat; Sethu, Swaminathan; Smith, Trevor; Alfirevic, Ana; Alhaidari, Mohammad; Atkinson, Jeffrey; Ayala, Mimieveshiofuo; Box, Helen; Cross, Michael; Delaunois, Annie; Dermody, Ailsa; Govindappa, Karthik; Guillon, Jean-Michel; Jenkins, Rosalind; Kenna, Gerry; Lemmer, Bjrn; Meecham, Ken; Olayanju, Adedamola; Pestel, Sabine; Rothfuss, Andreas; and others

    2013-12-01

    Safety pharmacology (SP) is an essential part of the drug development process that aims to identify and predict adverse effects prior to clinical trials. SP studies are described in the International Conference on Harmonisation (ICH) S7A and S7B guidelines. The core battery and supplemental SP studies evaluate effects of a new chemical entity (NCE) at both anticipated therapeutic and supra-therapeutic exposures on major organ systems, including cardiovascular, central nervous, respiratory, renal and gastrointestinal. This review outlines the current practices and emerging concepts in SP studies including frontloading, parallel assessment of core battery studies, use of non-standard species, biomarkers, and combining toxicology and SP assessments. Integration of the newer approaches to routine SP studies may significantly enhance the scope of SP by refining and providing mechanistic insight to potential adverse effects associated with test compounds. - Highlights: SP mandatory non-clinical risk assessments performed during drug development. SP organ system studies ensure the safety of clinical participants in FiH trials. Frontloading in SP facilitates lead candidate drug selection. Emerging trends: integrating SP-Toxicological endpoints; combined core battery tests.

  8. Current and future industrial energy service characterizations

    SciTech Connect (OSTI)

    Krawiec, F.; Thomas, T.; Jackson, F.; Limaye, D.R.; Isser, S.; Karnofsky, K.; Davis, T.D.

    1980-10-01

    Current and future energy demands, end uses, and cost used to characterize typical applications and resultant services in the industrial sector of the United States and 15 selected states are examined. A review and evaluation of existing industrial energy data bases was undertaken to assess their potential for supporting SERI research on: (1) market suitability analysis, (2) market development, (3) end-use matching, (3) industrial applications case studies, and (4) identification of cost and performance goals for solar systems and typical information requirements for industrial energy end use. In reviewing existing industrial energy data bases, the level of detail, disaggregation, and primary sources of information were examined. The focus was on fuels and electric energy used for heat and power purchased by the manufacturing subsector and listed by 2-, 3-, and 4-digit SIC, primary fuel, and end use. Projections of state level energy prices to 1990 are developed using the energy intensity approach. The effects of federal and state industrial energy conservation programs on future industrial sector demands were assessed. Future end-use energy requirements were developed for each 4-digit SIC industry and were grouped as follows: (1) hot water, (2) steam (212 to 300/sup 0/F, each 100/sup 0/F interval from 300 to 1000/sup 0/F, and greater than 1000/sup 0/F), and (3) hot air (100/sup 0/F intervals). Volume I details the activities performed in this effort.

  9. Current Status of VHTR Technology Development

    SciTech Connect (OSTI)

    David Petti; Hans Gougar; Richard Wright; William Windes; Steve Herring; Richard Schultz; Paul Humrickhouse

    2010-10-01

    Abstract – High Temperature Gas-cooled Reactors (HTGRs) featuring particle fuel reached the stage of commercial deployment in the mid-1980s with the Fort St.Vrain and Thorium HochTemperatur Reaktor feeding electricity to the grids in the United States and West Germany, respectively. The technology was then adopted by Japan and China with the operation of the High Temperature Test Reactor in Oarai, Japan and the High Temperature Reactor (HTR-10) in China. Increasing the outlet temperature of the HTGR to even higher temperatures above 900°C will improve the thermodynamic efficiency of the system and enable application of a new class of gas reactor, the very high temperature reactor, to provide process heat, electricity, and hydrogen to chemical industries with the attendant benefits of improved energy security and reduced CO2 emissions. However, the increase in coolant outlet temperature presents a number of technical challenges associated with fuel, materials, power conversion, and analysis methods for the reactor and hydrogen production. The U.S. Department of Energy is sponsoring a broad program of research and development with a goal of addressing the technical challenges over a broad range of outlet temperatures as part of the Next Generation Nuclear Plant Project. This paper describes the research and development activities that are currently underway to realize the technologies needed for an HTGR that features outlet temperatures of 750 to 950°C.

  10. Increased bile acids in enterohepatic circulation by short-term calorie restriction in male mice

    SciTech Connect (OSTI)

    Fu, Zidong Donna; Klaassen, Curtis D.

    2013-12-15

    Previous studies showed glucose and insulin signaling can regulate bile acid (BA) metabolism during fasting or feeding. However, limited knowledge is available on the effect of calorie restriction (CR), a well-known anti-aging intervention, on BA homeostasis. To address this, the present study utilized a doseresponse model of CR, where male C57BL/6 mice were fed 0, 15, 30, or 40% CR diets for one month, followed by BA profiling in various compartments of the enterohepatic circulation by UPLC-MS/MS technique. This study showed that 40% CR increased the BA pool size (162%) as well as total BAs in serum, gallbladder, and small intestinal contents. In addition, CR dose-dependently increased the concentrations of tauro-cholic acid (TCA) and many secondary BAs (produced by intestinal bacteria) in serum, such as tauro-deoxycholic acid (TDCA), DCA, lithocholic acid, ?-muricholic acid (?MCA), and hyodeoxycholic acid. Notably, 40% CR increased TDCA by over 1000% (serum, liver, and gallbladder). Interestingly, 40% CR increased the proportion of 12?-hydroxylated BAs (CA and DCA), which correlated with improved glucose tolerance and lipid parameters. The CR-induced increase in BAs correlated with increased expression of BA-synthetic (Cyp7a1) and conjugating enzymes (BAL), and the ileal BA-binding protein (Ibabp). These results suggest that CR increases BAs in male mice possibly through orchestrated increases in BA synthesis and conjugation in liver as well as intracellular transport in ileum. - Highlights: Dose response effects of short-term CR on BA homeostasis in male mice. CR increased the BA pool size and many individual BAs. CR altered BA composition (increased proportion of 12?-hydroxylated BAs). Increased mRNAs of BA enzymes in liver (Cyp7a1 and BAL) and ileal BA binding protein.

  11. Reducing current reversal time in electric motor control

    DOE Patents [OSTI]

    Bredemann, Michael V

    2014-11-04

    The time required to reverse current flow in an electric motor is reduced by exploiting inductive current that persists in the motor when power is temporarily removed. Energy associated with this inductive current is used to initiate reverse current flow in the motor.

  12. Spin-current diode with a ferromagnetic semiconductor

    SciTech Connect (OSTI)

    Sun, Qing-Feng Xie, X. C.

    2015-05-04

    Diode is a key device in electronics: the charge current can flow through the device under a forward bias, while almost no current flows under a reverse bias. Here, we propose a corresponding device in spintronics: the spin-current diode, in which the forward spin current is large but the reversed one is negligible. We show that the lead/ferromagnetic quantum dot/lead system and the lead/ferromagnetic semiconductor/lead junction can work as spin-current diodes. The spin-current diode, a low dissipation device, may have important applications in spintronics, as the conventional charge-current diode does in electronics.

  13. Direct Current - An Energy.gov Podcast | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Direct Current - An Energy.gov Podcast Direct Current - An Energy.gov Podcast Direct Current - An Energy.gov Podcast We go inside the hidden costs of rooftop solar, the origins of the Energy Department, and more! What is this podcast all about? Learn about Direct Current and meet the team behind the show. Get new episodes of Direct Current delivered to your device as soon as they are released.

  14. Atrazine-induced reproductive tract alterations after transplacental and/or lactational exposure in male Long-Evans rats

    SciTech Connect (OSTI)

    Rayner, Jennifer L.; Enoch, Rolondo R.; Wolf, Douglas C.; Fenton, Suzanne E. . E-mail: fenton.suzanne@epa.gov

    2007-02-01

    Studies showed that early postnatal exposure to the herbicide atrazine (ATR) delayed preputial separation (PPS) and increased incidence of prostate inflammation in adult Wistar rats. A cross-fostering paradigm was used in this study to determine if gestational exposure to ATR would also result in altered puberty and reproductive tissue effects in the male rat. Timed-pregnant Long-Evans (LE) rats were dosed by gavage on gestational days (GD) 15-19 with 100 mg ATR/kg body weight (BW) or 1% methylcellulose (controls, C). On postnatal day (PND)1, half litters were cross-fostered, creating 4 treatment groups; C-C, ATR-C, C-ATR, and ATR-ATR (transplacental-milk as source, respectively). On PND4, male offspring in the ATR-ATR group weighed significantly less than the C-C males. ATR-ATR male pups had significantly delayed preputial separation (PPS). BWs at PPS for C-ATR and ATR-ATR males were reduced by 6% and 9%, respectively, from that of C-C. On PND120, lateral prostate weights of males in the ATR-ATR group were significantly increased over C-C. Histological examination of lateral and ventral prostates identified an increased distribution of inflammation in the lateral prostates of C-ATR males. By PND220, lateral prostate weights were significantly increased for ATR-C and ATR-ATR, but there were no significant changes in inflammation in either the lateral or ventral prostate. These results suggest that in LE rats, gestational ATR exposure delays PPS when male offspring suckle an ATR dam, but leads to increased lateral prostate weight via transplacental exposure alone. Inflammation present at PND120 does not increase in severity with time.

  15. Current density partitioning in time-dependent current density functional theory

    SciTech Connect (OSTI)

    Mosquera, Martín A.; Wasserman, Adam; Department of Physics, Purdue University, West Lafayette, Indiana 47907

    2014-05-14

    We adapt time-dependent current density functional theory to allow for a fragment-based solution of the many-electron problem of molecules in the presence of time-dependent electric and magnetic fields. Regarding a molecule as a set of non-interacting subsystems that individually evolve under the influence of an auxiliary external electromagnetic vector-scalar potential pair, the partition 4-potential, we show that there are one-to-one mappings between this auxiliary potential, a sharply-defined set of fragment current densities, and the total current density of the system. The partition electromagnetic (EM) 4-potential is expressed in terms of the real EM 4-potential of the system and a gluing EM 4-potential that accounts for exchange-correlation effects and mutual interaction forces between fragments that are required to yield the correct electron dynamics. We prove the zero-force theorem for the fragmented system, establish a variational formulation in terms of action functionals, and provide a simple illustration for a charged particle in a ring.

  16. Cathode fall model and current-voltage characteristics of field emission driven direct current microplasmas

    SciTech Connect (OSTI)

    Venkattraman, Ayyaswamy

    2013-11-15

    The post-breakdown characteristics of field emission driven microplasma are studied theoretically and numerically. A cathode fall model assuming a linearly varying electric field is used to obtain equations governing the operation of steady state field emission driven microplasmas. The results obtained from the model by solving these equations are compared with particle-in-cell with Monte Carlo collisions simulation results for parameters including the plasma potential, cathode fall thickness, ion number density in the cathode fall, and current density vs voltage curves. The model shows good overall agreement with the simulations but results in slightly overpredicted values for the plasma potential and the cathode fall thickness attributed to the assumed electric field profile. The current density vs voltage curves obtained show an arc region characterized by negative slope as well as an abnormal glow discharge characterized by a positive slope in gaps as small as 10 ?m operating at atmospheric pressure. The model also retrieves the traditional macroscale current vs voltage theory in the absence of field emission.

  17. Integrated main rail, feed rail, and current collector

    DOE Patents [OSTI]

    Petri, R.J.; Meek, J.; Bachta, R.P.; Marianowski, L.G.

    1994-11-08

    A separator plate is described for a fuel cell comprising an anode current collector, a cathode current collector and a main plate, the main plate disposed between the anode current collector and the cathode current collector. The anode current collector forms a flattened peripheral wet seal structure and manifold wet seal structure on the anode side of the separator plate and the cathode current collector forms a flattened peripheral wet seal structure and manifold wet seal structure on the cathode side of the separator plate. In this manner, the number of components required to manufacture and assemble a fuel cell stack is reduced. 9 figs.

  18. Integrated main rail, feed rail, and current collector

    DOE Patents [OSTI]

    Petri, Randy J.; Meek, John; Bachta, Robert P.; Marianowski, Leonard G.

    1994-01-01

    A separator plate for a fuel cell comprising an anode current collector, a cathode current collector and a main plate, the main plate disposed between the anode current collector and the cathode current collector. The anode current collector forms a flattened peripheral wet seal structure and manifold wet seal structure on the anode side of the separator plate and the cathode current collector forms a flattened peripheral wet seal structure and manifold wet seal structure on the cathode side of the separator plate. In this manner, the number of components required to manufacture and assemble a fuel cell stack is reduced.

  19. A Superconducting transformer system for high current cable testing

    SciTech Connect (OSTI)

    Godeke, A.; Dietderich, D. R.; Joseph, J. M.; Lizarazo, J.; Prestemon, S. O.; Miller, G.; Weijers, H. W.

    2010-02-15

    This article describes the development of a direct-current (dc) superconducting transformer system for the high current test of superconducting cables. The transformer consists of a core-free 10 464 turn primary solenoid which is enclosed by a 6.5 turn secondary. The transformer is designed to deliver a 50 kA dc secondary current at a dc primary current of about 50 A. The secondary current is measured inductively using two toroidal-wound Rogowski coils. The Rogowski coil signal is digitally integrated, resulting in a voltage signal that is proportional to the secondary current. This voltage signal is used to control the secondary current using a feedback loop which automatically compensates for resistive losses in the splices to the superconducting cable samples that are connected to the secondary. The system has been commissioned up to 28 kA secondary current. The reproducibility in the secondary current measurement is better than 0.05% for the relevant current range up to 25 kA. The drift in the secondary current, which results from drift in the digital integrator, is estimated to be below 0.5 A/min. The system's performance is further demonstrated through a voltage-current measurement on a superconducting cable sample at 11 T background magnetic field. The superconducting transformer system enables fast, high resolution, economic, and safe tests of the critical current of superconducting cable samples.

  20. Hydrogen Production and Storage for Fuel Cells: Current Status...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    and Storage for Fuel Cells: Current Status Hydrogen Production and Storage for Fuel Cells: Current Status Presented at the Clean Energy States Alliance and U.S. Department of ...

  1. Formation of current filaments and magnetic field generation in a quantum current-carrying plasma

    SciTech Connect (OSTI)

    Niknam, A. R.; Taghadosi, M. R.; Majedi, S.; Khorashadizadeh, S. M.

    2013-09-15

    The nonlinear dynamics of filamentation instability and magnetic field in a current-carrying plasma is investigated in the presence of quantum effects using the quantum hydrodynamic model. A new nonlinear partial differential equation is obtained for the spatiotemporal evolution of the magnetic field in the diffusion regime. This equation is solved by applying the Adomian decomposition method, and then the profiles of magnetic field and electron density are plotted. It is shown that the saturation time of filamentation instability increases and, consequently, the instability growth rate and the magnetic field amplitude decrease in the presence of quantum effects.

  2. Direct-current-like Phase Space Manipulation Using Chirped Alternating Current Fields

    SciTech Connect (OSTI)

    P.F. Schmit and N.J. Fisch

    2010-02-01

    Waves in plasmas can accelerate particles that are resonant with the wave. A dc electric field also accelerates particles, but without a resonance discrimination, which makes the acceleration mechanism profoundly different. Whereas wave-particle acceleration mechanisms have been widely discussed in the literature, this work discusses the direct analogy between wave acceleration and dc field acceleration in a particular parameter regime explored in previous works. Apart from the academic interest of this correspondence, there may be practical advantages in using waves to mimic dc electric fields, for example, in driving plasma current with high efficiency.

  3. Method and apparatus for reducing the harmonic currents in alternating-current distribution networks

    DOE Patents [OSTI]

    Beverly, Leon H.; Hance, Richard D.; Kristalinski, Alexandr L.; Visser, Age T.

    1996-01-01

    An improved apparatus and method reduce the harmonic content of AC line and neutral line currents in polyphase AC source distribution networks. The apparatus and method employ a polyphase Zig-Zag transformer connected between the AC source distribution network and a load. The apparatus and method also employs a mechanism for increasing the source neutral impedance of the AC source distribution network. This mechanism can consist of a choke installed in the neutral line between the AC source and the Zig-Zag transformer.

  4. Method and apparatus for reducing the harmonic currents in alternating-current distribution networks

    DOE Patents [OSTI]

    Beverly, L.H.; Hance, R.D.; Kristalinski, A.L.; Visser, A.T.

    1996-11-19

    An improved apparatus and method reduce the harmonic content of AC line and neutral line currents in polyphase AC source distribution networks. The apparatus and method employ a polyphase Zig-Zag transformer connected between the AC source distribution network and a load. The apparatus and method also employs a mechanism for increasing the source neutral impedance of the AC source distribution network. This mechanism can consist of a choke installed in the neutral line between the AC source and the Zig-Zag transformer. 23 figs.

  5. Comments of Current Group, LLC | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Current Group, LLC Comments of Current Group, LLC Comments of Current Group, LLC regarding the request for information: Addressing Policy and Logistical Challenges to Smart Grid Implementation PDF icon Comments of Current Group, LLC More Documents & Publications SGIG and SGDP Highlights: Jumpstarting a Modern Grid (October 2014) Municipal Utilities' Investment in Smart Grid Technologies Improves Services and Lowers Costs (October 2014) Final Report- High Penetration Solar PV Deployment

  6. High current density cathode for electrorefining in molten electrolyte

    DOE Patents [OSTI]

    Li, Shelly X.

    2010-06-29

    A high current density cathode for electrorefining in a molten electrolyte for the continuous production and collection of loose dendritic or powdery deposits. The high current density cathode eliminates the requirement for mechanical scraping and electrochemical stripping of the deposits from the cathode in an anode/cathode module. The high current density cathode comprises a perforated electrical insulated material coating such that the current density is up to 3 A/cm.sup.2.

  7. Assessment of Energy Production Potential from Ocean Currents along the

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    United States Coastline | Department of Energy Ocean Currents along the United States Coastline Assessment of Energy Production Potential from Ocean Currents along the United States Coastline Report summarizing the results of seven years of numerical model simulations of ocean currents in the United States and the database created with that data. PDF icon Assessment of Energy Production Potential from Ocean Currents along the United States Coastline More Documents & Publications

  8. Current Fuel Cell Technologies Office Financial Opportunities | Department

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    of Energy Financial Opportunities » Current Fuel Cell Technologies Office Financial Opportunities Current Fuel Cell Technologies Office Financial Opportunities Current hydrogen-related funding opportunities through the U.S. Department of Energy's (DOE) Fuel Cell Technologies Office (FCTO) are listed below. FCTO offers opportunities for both financial and technical assistance. Although FCTO attempts to maintain current information on these solicitations, the official source for funding

  9. Assessment of Energy Production Potential from Ocean Currents along the

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    United States Coastline | Department of Energy Energy Production Potential from Ocean Currents along the United States Coastline Assessment of Energy Production Potential from Ocean Currents along the United States Coastline Report summarizing the results of seven years of numerical model simulations of ocean currents in the United States and the database created with that data. PDF icon energy_production_ocean_currents_us.pdf More Documents & Publications Assessment of Energy Production

  10. New Airborne Technology Measures Ocean Surface Currents for Offshore Energy

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Production and Emergency Rescue Missions | Department of Energy Airborne Technology Measures Ocean Surface Currents for Offshore Energy Production and Emergency Rescue Missions New Airborne Technology Measures Ocean Surface Currents for Offshore Energy Production and Emergency Rescue Missions April 11, 2016 - 10:40am Addthis Ocean surface current velocities on image of sea surface temperatures, March 29, 2015. Figure from “Real Time Observing and Forecasting of Loop Currents in

  11. Hydrogen Fueling for Current and Anticipated Fuel Cell Electric Vehicles

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    (FCEVs) | Department of Energy for Current and Anticipated Fuel Cell Electric Vehicles (FCEVs) Hydrogen Fueling for Current and Anticipated Fuel Cell Electric Vehicles (FCEVs) Download presentation slides from the DOE Fuel Cell Technologies Office webinar "Hydrogen Fueling for Current and Anticipated Fuel Cell Electric Vehicles (FCEVs)" held on June 24, 2014. PDF icon Hydrogen Fueling for Current and Anticipated Fuel Cell Electric Vehicles (FCEVs) Webinar Slides More Documents

  12. Modeling options for Current Energy Convertor Systems and Associated...

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    for Current Energy Converter Systems and Associated Challenges Marine and Hydrokinetic Instrumentation, Measurement & Computer Modeling Workshop Allie Cribbs Ocean Engineer ...

  13. First Measurement of Muon Neutrino Charged Current Quasielastic...

    Office of Scientific and Technical Information (OSTI)

    Using a high statistics sample of muon neutrino charged current quasielastic (CCQE) ... NEUTRINO OSCILLATION; NEUTRINOS; NUCLEONS; SCATTERING; SIMULATION; STATISTICS; TARGETS

  14. Multi-megampere current interruption from explosive deformation of conductors

    SciTech Connect (OSTI)

    Goforth, J.H.; Williams, A.H.; Marsh, S.P.

    1985-01-01

    Two approaches for using explosives to interrupt current flowing in solid conductors are described. One concept uses explosives to extrude the switch conductor into thin regions that fuse due to current in the switch. A preliminary scaling law is presented. The second approach employs dielectric jets to sever current carrying conductors. A feasibility experiment and an improved design are described.

  15. Vapor cooled current lead for cryogenic electrical equipment

    DOE Patents [OSTI]

    Vansant, James H.

    1983-01-01

    Apparatus and method are provided for conducting electric current to cryogenic electrical equipment devices. A combination of inner and outer tubes together form a plurality of hollow composite tubes housed in a sheath. Top and bottom block mounting means are fitted to hold the composite tubes and are affixed to the ends of the sheath. This combination forms a current lead. The current lead is attached to a cryogenic device housing a fluid coolant which moves through the current lead, cooling the current lead as the fluid travels.

  16. Apparatus for electrode current control in linear MHD generators

    DOE Patents [OSTI]

    Demirjian, Ara M.; Solbes, Albert

    1984-01-01

    Apparatus for controlling a plurality of opposing, electrode, direct-currents at pre-set locations across a channel that comprises a converter for converting each electrode current into first and second periodic control signals which are 180.degree. out of phase with respect to each other and which have equal magnitudes corresponding to the magnitude of the associated electrode current; and couplers for magnetically coupling individual ones of the first control signals and for magnetically coupling individual ones of the second signals such that the corresponding electrode currents are equalized or rendered proportional by balancing the same in the same or constant ratios in accordance with the locations of the electrode currents.

  17. Method and apparatus for measuring low currents in capacitance devices

    DOE Patents [OSTI]

    Kopp, M.K.; Manning, F.W.; Guerrant, G.C.

    1986-06-04

    A method and apparatus for measuring subnanoampere currents in capacitance devices is reported. The method is based on a comparison of the voltages developed across the capacitance device with that of a reference capacitor in which the current is adjusted by means of a variable current source to produce a stable voltage difference. The current varying means of the variable current source is calibrated to provide a read out of the measured current. Current gain may be provided by using a reference capacitor which is larger than the device capacitance with a corresponding increase in current supplied through the reference capacitor. The gain is then the ratio of the reference capacitance to the device capacitance. In one illustrated embodiment, the invention makes possible a new type of ionizing radiation dose-rate monitor where dose-rate is measured by discharging a reference capacitor with a variable current source at the same rate that radiation is discharging an ionization chamber. The invention eliminates high-megohm resistors and low current ammeters used in low-current measuring instruments.

  18. DISTRIBUTION OF ELECTRIC CURRENTS IN SOLAR ACTIVE REGIONS

    SciTech Connect (OSTI)

    Trk, T.; Titov, V. S.; Miki?, Z.; Leake, J. E.; Archontis, V.; Linton, M. G.; Dalmasse, K.; Aulanier, G.; Kliem, B.

    2014-02-10

    There has been a long-standing debate on the question of whether or not electric currents in solar active regions are neutralized. That is, whether or not the main (or direct) coronal currents connecting the active region polarities are surrounded by shielding (or return) currents of equal total value and opposite direction. Both theory and observations are not yet fully conclusive regarding this question, and numerical simulations have, surprisingly, barely been used to address it. Here we quantify the evolution of electric currents during the formation of a bipolar active region by considering a three-dimensional magnetohydrodynamic simulation of the emergence of a sub-photospheric, current-neutralized magnetic flux rope into the solar atmosphere. We find that a strong deviation from current neutralization develops simultaneously with the onset of significant flux emergence into the corona, accompanied by the development of substantial magnetic shear along the active region's polarity inversion line. After the region has formed and flux emergence has ceased, the strong magnetic fields in the region's center are connected solely by direct currents, and the total direct current is several times larger than the total return current. These results suggest that active regions, the main sources of coronal mass ejections and flares, are born with substantial net currents, in agreement with recent observations. Furthermore, they support eruption models that employ pre-eruption magnetic fields containing such currents.

  19. A new approach to investigate leakage current mechanisms in infrared photodiodes from illuminated current-voltage characteristics

    SciTech Connect (OSTI)

    Gopal, Vishnu

    2014-08-28

    This paper presents a new approach to investigate leakage current mechanisms in infrared photodiodes from the illuminated currentvoltage characteristics. The example of mid-wave mercury cadmium telluride photodiodes is presented to illustrate the new approach. The new method is suitable for evaluating diodes in an array environment as advance knowledge of any of the material or device parameters are not required. The thermal saturation current is estimated from the observed open circuit voltage and zero-bias current (photo-current) of the diode. The ohmic shunt resistance is estimated from the observed maximum dynamic impedance of the diode. The experimentally observed reverse bias diode current in excess of thermal current, photo-current, and ohmic shunt current is reported to be best described by an exponential function of the type, I{sub excess}?=?I{sub r0}?+?K{sub 1} exp (K{sub 2} V), where I{sub r0}, K{sub 1}, and K{sub 2} are fitting parameters and V is the applied bias voltage. Our investigations reveal a close link between the excess current and the sources of ohmic currents in the diode. Exponential growth of excess current with the applied bias voltage has been interpreted as an indication of soft breakdown of the diodes.

  20. Chiral Two-body Currents and Neutrinoless Double Beta Decay

    SciTech Connect (OSTI)

    Menendez, Javier [Institut fuer Kernphysik, Technische Universitaet Darmstadt, 64289 Darmstadt (Germany); ExtreMe Matter Institute EMMI, GSI Helmholtzzentrum fuer Schwerionenforschung GmbH, 64291 Darmstadt (Germany)

    2011-12-16

    The nuclear matrix elements (NMEs) of neutrinoless double-beta (0{nu}{beta}{beta}) decay are studied using weak currents derived in the framework of chiral effective field theory. Apart from the standard one-body (1b) currents, it is shown that two-body (2b) currents contribute to weak processes. The normal-ordered 1b part of 2b currents modifies the Gamow-Teller (GT){sigma}{tau}{sup -} part of the 1b current, contributing to the well-known quenching of GT single-{beta} decays. The momentum-transfer dependence of the quenching due to 2b currents is also predicted. Therefore, including 2b currents allows to address, microscopically, the problem of the axial weak coupling (g{sub A}) value, which is the biggest uncertainty in the 0{nu}{beta}{beta} decay NME calculations for all available methods.

  1. Dynamics of the Disruption Halo Current Toroidal Asymmetry in NSTX

    SciTech Connect (OSTI)

    S.P. Gerhardt

    2012-09-27

    This paper describes the dynamics of disruption halo current non-axisymmetries in the lower divertor of the National Spherical Torus Experiment [M. Ono, et al. Nuclear Fusion 40, 557 (2000)]. While. The halo currents typically have a strongly asymmetric structure where they enter the divertor floor, and this asymmetry has been observed to complete up to 7 toroidal revolutions over the duration of the halo current pulse. However, the rotation speed and toroidal extend of the asymmetry can vary significantly during the pulse. The rotation speed, halo current pulse duration, and total number of revolutions tend to be smaller in cases with large halo currents. The halo current pattern is observed to become toroidally symmetric at the end of the halo current pulse. It is proposed that this symmeterization is due to the loss of most or all of the closed field line geometry in the final phase of the vertical displacement event.

  2. The effects of UCP-1 polymorphisms on obesity phenotypes among Korean female subjects

    SciTech Connect (OSTI)

    Shin, Hyoung Doo; Kim, Kil Soo; Cha, Min Ho; Yoon, Yoosik . E-mail: ysyoon66@naver.com

    2005-09-23

    Three SNPs of UCP-1 including A-3826G, A-1766G, and Ala64Thr (G+1068A) were genotyped among 453 overweight Korean female subjects recruited from an obesity clinic. Four common haplotypes with frequency greater than 0.04 were constructed with three SNPs. For an accurate evaluation of the effects of UCP-1 polymorphism on body fat accumulation, all subjects were tested using computerized tomography to measure the cross-sectional fat tissue areas at abdominal and distal part of the body. By statistical analyses, ht4[GAA] showed a significant association with decreased abdominal fat tissue area (P = 0.02, dominant model), fat tissue area at thigh (P = 0.008, dominant model), body fat mass (P = 0.002, dominant model), and waist-to-hip ratio (P = 0.01, dominant model). In addition, ht3[GAG] was associated with the accelerated reduction of waist-to-hip ratio and body fat mass by very low calorie diet among subjects who finished one-month-weight control program (P = 0.05-0.006)

  3. Apparatuses and method for converting electromagnetic radiation to direct current

    DOE Patents [OSTI]

    Kotter, Dale K; Novack, Steven D

    2014-09-30

    An energy conversion device may include a first antenna and a second antenna configured to generate an AC current responsive to incident radiation, at least one stripline, and a rectifier coupled with the at least one stripline along a length of the at least one stripline. An energy conversion device may also include an array of nanoantennas configured to generate an AC current in response to receiving incident radiation. Each nanoantenna of the array includes a pair of resonant elements, and a shared rectifier operably coupled to the pair of resonant elements, the shared rectifier configured to convert the AC current to a DC current. The energy conversion device may further include a bus structure operably coupled with the array of nanoantennas and configured to receive the DC current from the array of nanoantennas and transmit the DC current away from the array of nanoantennas.

  4. The Current State of Technology for Cellulosic Ethanol | Department of

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Energy The Current State of Technology for Cellulosic Ethanol The Current State of Technology for Cellulosic Ethanol At the February 12, 2009 joint Web conference of DOE's Biomass and Clean Cities programs, Andy Aden (National Renewable Energy Laboratory) discussed the current state of technology for cellulosic ethanol - How close are we? PDF icon aden_20090212.pdf More Documents & Publications Integrated Biorefinery Process Process Design and Economics for Biochemical Conversion of

  5. Current Trends in Policy - What's new? - Berta Schreiber, Director,

    Energy Savers [EERE]

    Appliance & Equipment Standards » Rulemakings & Notices » Current Rulemakings and Notices Current Rulemakings and Notices The Department of Energy has compiled a summary tables that link to each current rulemaking and its associated product page. Each rulemaking page: Provides an update on the most recent activity related to that rulemaking Describes the rulemaking's purpose Lists rulemaking milestones and provides links to key documents and the docket Links to any related rulemakings

  6. First Measurement of Muon Neutrino Charged Current Quasielastic (CCQE)

    Office of Scientific and Technical Information (OSTI)

    Double Differential Cross Section (Conference) | SciTech Connect First Measurement of Muon Neutrino Charged Current Quasielastic (CCQE) Double Differential Cross Section Citation Details In-Document Search Title: First Measurement of Muon Neutrino Charged Current Quasielastic (CCQE) Double Differential Cross Section Using a high statistics sample of muon neutrino charged current quasielastic (CCQE) events, we report the first measurement of the double differential cross section (d{sup

  7. Heavy pair production currents with general quantum numbers in

    Office of Scientific and Technical Information (OSTI)

    dimensionally regularized nonrelativistic QCD (Journal Article) | SciTech Connect Heavy pair production currents with general quantum numbers in dimensionally regularized nonrelativistic QCD Citation Details In-Document Search Title: Heavy pair production currents with general quantum numbers in dimensionally regularized nonrelativistic QCD We discuss the form and construction of general color singlet heavy particle-antiparticle pair production currents for arbitrary quantum numbers, and

  8. Near-surface Density Currents Observed in the Southeast Pacific

    Office of Scientific and Technical Information (OSTI)

    Stratocumulus-topped Marine Boundary Layer (Journal Article) | SciTech Connect SciTech Connect Search Results Journal Article: Near-surface Density Currents Observed in the Southeast Pacific Stratocumulus-topped Marine Boundary Layer Citation Details In-Document Search Title: Near-surface Density Currents Observed in the Southeast Pacific Stratocumulus-topped Marine Boundary Layer Density currents (i.e. cold pools or outflows) beneath marine stratocumulus clouds are characterized using a

  9. Current Approaches to Safety, Codes and Standards | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Safety, Codes & Standards » Current Approaches to Safety, Codes and Standards Current Approaches to Safety, Codes and Standards Current approaches to hydrogen and fuel cells safety, codes and standards are based on existing practices, guidelines, and codes and standards developed as a result of hydrogen's use in the chemical and aerospace industries. While some codes and standards for hydrogen and hydrogen-related systems are already available, in many cases they do not fully address the

  10. Current Fiscal Year FOIA Requests received by Golden Field Office |

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Department of Energy Current Fiscal Year FOIA Requests received by Golden Field Office Current Fiscal Year FOIA Requests received by Golden Field Office Golden Field Office Status of FOIA Requests Received -- Current Quarter FY'16, from the U.S. Department of Energy. PDF icon GFO Status of FOIA Requests Received More Documents & Publications Previous Fiscal Year FOIA Requests received by Golden Field Office Golden Annual FOIA Report Office of Information Resources (MA-90)

  11. Neutron detection using a current biased kinetic inductance detector

    Office of Scientific and Technical Information (OSTI)

    (Journal Article) | SciTech Connect SciTech Connect Search Results Journal Article: Neutron detection using a current biased kinetic inductance detector Citation Details In-Document Search Title: Neutron detection using a current biased kinetic inductance detector We demonstrate neutron detection using a solid state superconducting current biased kinetic inductance detector (CB-KID), which consists of a superconducting Nb meander line of 1 μm width and 40 nm thickness. {sup 10}B-enriched

  12. Current-voltage characteristics of organic heterostructure devices with

    Office of Scientific and Technical Information (OSTI)

    insulating spacer layers (Journal Article) | SciTech Connect Current-voltage characteristics of organic heterostructure devices with insulating spacer layers Citation Details In-Document Search Title: Current-voltage characteristics of organic heterostructure devices with insulating spacer layers The dark current density in donor/acceptor organic planar heterostructure devices at a given forward voltage bias can either increase or decrease when an insulating spacer layer is added between the

  13. Temperature compensated current sensor using reference magnetic field

    DOE Patents [OSTI]

    Yakymyshyn, Christopher Paul (Seminole, FL); Brubaker, Michael Allen (Loveland, CO); Yakymyshyn, Pamela Jane (Seminole, FL)

    2007-10-09

    A method is described to provide temperature compensation and self-calibration of a current sensor based on a plurality of magnetic field sensors positioned around a current carrying conductor. A reference magnetic field generated within the current sensor housing is detected by a separate but identical magnetic field sensor and is used to correct variations in the output signal due to temperature variations and aging.

  14. Assessment of Energy Production Potential from Ocean Currents...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Report summarizing the results of seven years of numerical model simulations of ocean currents in the United States and the database created with that data. PDF icon ...

  15. Spintronics: spin current from a paramagnet | Argonne National...

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Spintronics: spin current from a paramagnet July 30, 2015 Tweet EmailPrint Researchers in ... This has important implications for the field of spintronics and the development of ...

  16. Recent and Current Research & Roadmapping Activities: Overview (Presentation)

    SciTech Connect (OSTI)

    Darzins, A.

    2008-09-01

    December 2008 DOE Algal Biofuels Technology Roadmap Workshop plenary presentation: summarizes past and current algal biofuels activity, status of research funding, and recent roadmapping activities.

  17. NREL: Awards and Honors - Current Interrupt Charging Algorithm...

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Current Interrupt Charging Algorithm for Lead-Acid Batteries Developers: Matthew A. Keyser, Ahmad A. Pesaran, and Mark M. Mihalic, National Renewable Energy Laboratory; Robert F....

  18. Hydrogen Fueling for Current and Anticipated Fuel Cell Electric...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Hydrogen Fueling for Current and Anticipated Fuel Cell Electric Vehicles (FCEVs) Download presentation slides from the DOE Fuel Cell Technologies Office webinar "Hydrogen Fueling ...

  19. Current CO-OP Open Positions | Argonne National Laboratory

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Cooperative Education Frequently Asked Questions Program Openings National School on Neutron and X-ray Scattering Contact education@anl.gov Current CO-OP Open Positions We...

  20. First Measurement of Muon Neutrino Charged Current Quasielastic...

    Office of Scientific and Technical Information (OSTI)

    current quasielastic (CCQE) events, we report the first measurement of the double differential cross section (dsup 2sigmadTsub mud cos thetasub mu) for this process. ...

  1. Direct Current - An Energy.gov Podcast | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Direct Current - An Energy.gov Podcast Direct Current - An Energy.gov Podcast Jump to Podcast Items List. Podcast Meta Data itunes-icon-1400px-square.jpg Direct Current - An Energy.gov Podcast Album Art Category Government & Organizations Category Author Energy.gov Digital Team Copyright © Department of Energy HOW TO SUBSCRIBE To subscribe using iTunes, click here. To subscribe using another podcatcher, copy this URL: http://energy.gov/podcasts/direct-current-energygov-podcast?format=itunes

  2. DARK CURRENT-VOLTAGE MEASUREMENTS ON PHOTOVOLTAIC MODULES AS...

    Office of Scientific and Technical Information (OSTI)

    cells, providing an effective way to determine fundamental performance parameters without the need for a solar ... information regarding short-circuit current, but is more ...

  3. Direct-Current Resistivity Survey At Raft River Geothermal Area...

    Open Energy Info (EERE)

    Raft River Geothermal Area (1983) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Direct-Current Resistivity Survey At Raft River Geothermal Area...

  4. Gyrokinetic neoclassical study of the bootstrap current in the...

    Office of Scientific and Technical Information (OSTI)

    Title: Gyrokinetic neoclassical study of the bootstrap current in the tokamak edge pedestal with fully non-linear Coulomb collisions Authors: Hager, Robert 1 ; Chang, C. S. 1 + ...

  5. Strain-assisted current-induced magnetization reversal in magnetic...

    Office of Scientific and Technical Information (OSTI)

    It is found that the critical current density for in-plane magnetization reversal ... ; Department of Physics, University of Science and Technology Beijing, Beijing 100083 ...

  6. Presentation: Introduction to Current & Prior Studies of the...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Energy Laboratories on current and prior studies of the DOE Laboratories delivered by Mark Taylor, Susannah Howieson, and Julian Zhu from the Science and Technology Policy ...

  7. Counter-current flow limitation in thin rectangular channels...

    Office of Scientific and Technical Information (OSTI)

    AND INFORMATION SCIENCE; CORE FLOODING SYSTEMS; COUNTERFLOW SYSTEMS; TWO-PHASE FLOW; RESEARCH AND TEST REACTORS; COMPARATIVE EVALUATIONS; COUNTER CURRENT; CRITICALITY; FILMS; ...

  8. Current-voltage characteristics of organic heterostructure devices...

    Office of Scientific and Technical Information (OSTI)

    Current-voltage characteristics of organic heterostructure devices with insulating spacer ... Visit OSTI to utilize additional information resources in energy science and technology. A ...

  9. MHK Technologies/Zero Impact Water Current Turbine | Open Energy...

    Open Energy Info (EERE)

    Impact Water Current Turbine < MHK Technologies Jump to: navigation, search << Return to the MHK database homepage Technology Profile Primary Organization Green Wave Energy Corp...

  10. MHK Technologies/Current Electric Generator | Open Energy Information

    Open Energy Info (EERE)

    harnessing the motion of water current to rotate the generator Two forms of magnetic induction and solar cells on the outer housing will produce electricity very efficiently The...

  11. Method and apparatus to trigger superconductors in current limiting devices

    DOE Patents [OSTI]

    Yuan, Xing; Hazelton, Drew Willard; Walker, Michael Stephen

    2004-10-26

    A method and apparatus for magnetically triggering a superconductor in a superconducting fault current limiter to transition from a superconducting state to a resistive state. The triggering is achieved by employing current-carrying trigger coil or foil on either or both the inner diameter and outer diameter of a superconductor. The current-carrying coil or foil generates a magnetic field with sufficient strength and the superconductor is disposed within essentially uniform magnetic field region. For superconductor in a tubular-configured form, an additional magnetic field can be generated by placing current-carrying wire or foil inside the tube and along the center axial line.

  12. Combined Electric Machine and Current Source Inverter Drive System...

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    The current source inverter by itself can eliminate a large portion of the capacitors, but it requires additional inductors. This technology's integration reduces the dependency on ...

  13. Direct-Current Resistivity Survey At Kilauea East Rift Geothermal...

    Open Energy Info (EERE)

    Survey At Kilauea East Rift Geothermal Area (FURUMOTO, 1976) Exploration Activity Details Location Kilauea East Rift Geothermal Area Exploration Technique Direct-Current...

  14. There are currently no significant reported user bugs with CAF...

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    1-800-66-NERSC, option 3 or 510-486-8611 Home For Users Software Compilers CAF (Coarray Fortran) CAF Bug Reports There are currently no significant...

  15. MHK Technologies/CurrentStar | Open Energy Information

    Open Energy Info (EERE)

    Technology Profile Primary Organization Bourne Energy Technology Type Click here Axial Flow Turbine Technology Description The CurrentStar series is designed to harness the...

  16. Session #1: Cutting Edge Methodologies--Beyond Current DFT

    Broader source: Energy.gov [DOE]

    Benchmarking state-of-the-art approaches, accurate energy landscape. Identify problems with the current DFT-LDA and GGA approaches and possible pathways to overcome these problems.

  17. Application of dynamic displacement current for diagnostics of...

    Office of Scientific and Technical Information (OSTI)

    current was used for diagnostics of ionization processes between the ionization wave front and a plane anode. It is demonstrated that during the generation of a...

  18. Shared Solar: Current Landscape, Market Potential, and the Impact...

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Shared Solar: Current Landscape, Market Potential, and the Impact of Federal Securities Regulation David Feldman, 1 Anna M. Brockway, 2 Elaine Ulrich, 2 and Robert Margolis 1 1...

  19. Review of Natural Phenomena Hazards (NPH) Requirements Currently...

    Office of Environmental Management (EM)

    Review of Natural Phenomena Hazards (NPH) Requirements Currently Applied to the Thomas Jefferson National Accelerator Facility (TJNAF) Review of Natural Phenomena Hazards (NPH)...

  20. Direct-Current Resistivity Survey At Brady Hot Springs Area ...

    Open Energy Info (EERE)

    Brady Hot Springs Area (Combs 2006) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Direct-Current Resistivity Survey At Brady Hot Springs Area...

  1. Evidence for breathing modes in direct current, pulsed, and high...

    Office of Scientific and Technical Information (OSTI)

    Evidence for breathing modes in direct current, pulsed, and high power impulse magnetron sputtering plasmas Citation Details In-Document Search This content will become publicly...

  2. Integration of Novel Flux Coupling Motor and Current Source Inverter...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    More Documents & Publications Current Source Inverters for HEVs and FCVs Vehicle Technologies Office Merit Review 2014: Wireless Charging Integration of Novel Flux Coupling Motor ...

  3. Integration of Novel Flux Coupling Motor and Current Source Inverter...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    More Documents & Publications Integration of Novel Flux Coupling Motor and Current Source Inverter Novel Flux Coupling Machine without Permanent Magnets John Hsu, Oak Ridge ...

  4. Research Site Locations for Current and Former EERE Postdoctoral Awards

    Broader source: Energy.gov [DOE]

    Research Site Locations for Current and Former EERE Postdoctoral Awards, from the U.S. Department of Energy's Office of Energy Efficiency and Renewable Energy.

  5. Current Practices of the Department of Water Resources in Supervision...

    Open Energy Info (EERE)

    search OpenEI Reference LibraryAdd to library PermittingRegulatory Guidance - GuideHandbook: Current Practices of the Department of Water Resources in Supervision of...

  6. Current Geothermal Projects-Exploration Activity | Open Energy...

    Open Energy Info (EERE)

    Activity Jump to: navigation, search OpenEI Reference LibraryAdd to library Web Site: Current Geothermal Projects-Exploration Activity Abstract "Geothermal exploration...

  7. Direct optical detection of current induced spin accumulation...

    Office of Scientific and Technical Information (OSTI)

    harmonic generation Citation Details In-Document Search Title: Direct optical detection of current induced spin accumulation in metals by magnetization-induced second harmonic ...

  8. Direct-Current Resistivity Survey At Dixie Valley Geothermal...

    Open Energy Info (EERE)

    Valley Geothermal Area Exploration Technique Direct-Current Resistivity Survey Activity Date 2003 - 2003 Usefulness useful DOE-funding Unknown Exploration Basis The Goals of this...

  9. Toward Understanding of Differences in Current Cloud Retrievals...

    Office of Scientific and Technical Information (OSTI)

    In this study, an in-depth analysis of nine existing ... This study suggests the need to further validate current ... Country of Publication: United States Language: English ...

  10. MHK Technologies/Sub Surface Counter Rotation Current Generator...

    Open Energy Info (EERE)

    that operate independently that tether freely anchored offshore in deep waters in the Gulf Stream Current producing continuos clean energy for the eastern seaboard Technology...

  11. Leaders in Future and Current Technology Teaming Up to Improve...

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Leaders in Future and Current Technology Teaming Up to Improve Ethanol Production For more ... with Broin and Associates, Inc., a major ethanol producer, to develop new technologies to ...

  12. Direct-Current Resistivity Survey At Kilauea East Rift Geothermal...

    Open Energy Info (EERE)

    Direct-Current Resistivity Survey At Kilauea East Rift Geothermal Area (Thomas, 1986) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity:...

  13. Direct-Current Resistivity Survey At Cove Fort Area - Vapor ...

    Open Energy Info (EERE)

    2002) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Direct-Current Resistivity Survey At Cove Fort Area - Vapor (Warpinski, Et Al., 2002)...

  14. Designing spectrum-splitting dichroic filters to optimize current...

    Office of Scientific and Technical Information (OSTI)

    Title: Designing spectrum-splitting dichroic filters to optimize current-matched photovoltaics Authors: Miles, Alexander ; Cocilovo, Byron ; Wheelwright, Brian ; Pan, Wei ; Tweet, ...

  15. Analysis on Current Status of the Gas Filling Station Networks...

    Open Energy Info (EERE)

    Name: Analysis on Current Status of the Gas Filling Station Networks Website Focus Area: Natural Gas Topics: Potentials & Scenarios Website: www.gashighway.net...

  16. Current Status of the high enthalpy conventional geothermal fields...

    Open Energy Info (EERE)

    Current Status of the high enthalpy conventional geothermal fields in Europe and the potential perspectives for their exploitation in terms of EGS Jump to: navigation, search...

  17. Stress evolution during growth in direct-current-sputtered zinc...

    Office of Scientific and Technical Information (OSTI)

    Stress evolution during growth in direct-current-sputtered zinc oxide films at various oxygen flows Citation Details In-Document Search Title: Stress evolution during growth in ...

  18. Clean Energy Manufacturing Initiative Current Activities | Department of

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Energy Current Activities Clean Energy Manufacturing Initiative Current Activities The Clean Energy Manufacturing Initiative (CEMI) takes concrete actions to build momentum around American innovation, growth, and competitiveness in clean energy manufacturing. Activity areas include technology research and development (R&D); new innovation models; competitiveness analysis; stakeholder engagement; and energy productivity technical assistance. Technology Research and Development Investment

  19. There are currently no significant reported user bugs with CAF.

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Reports » There are currently no significant reported user bugs with CAF. There are currently no significant reported user bugs with CAF. November 18, 2013 No reported CAF bugs. Subscribe via RSS Subscribe Browse by Date November 2013 Last edited: 2013-11-18 15:10:05

  20. Demodulation circuit for AC motor current spectral analysis

    DOE Patents [OSTI]

    Hendrix, Donald E.; Smith, Stephen F.

    1990-12-18

    A motor current analysis method for the remote, noninvasive inspection of electric motor-operated systems. Synchronous amplitude demodulation and phase demodulation circuits are used singly and in combination along with a frequency analyzer to produce improved spectral analysis of load-induced frequencies present in the electric current flowing in a motor-driven system.

  1. Geometry-dependent critical currents in superconducting nanocircuits

    SciTech Connect (OSTI)

    Clem, John R.; Berggren, Karl K.

    2011-11-18

    In this paper, we calculate the critical currents in thin superconducting strips with sharp right-angle turns, 180{sup o} turnarounds, and more complicated geometries, where all the line widths are much smaller than the Pearl length {Lambda} = 2{lambda}{sup 2}/d. We define the critical current as the current that reduces the Gibbs-free-energy barrier to zero. We show that current crowding, which occurs whenever the current rounds a sharp turn, tends to reduce the critical current, but we also show that when the radius of curvature is less than the coherence length, this effect is partially compensated by a radius-of-curvature effect. We propose several patterns with rounded corners to avoid critical-current reduction due to current crowding. These results are relevant to superconducting nanowire single-photon detectors, where they suggest a means of improving the bias conditions and reducing dark counts. These results also have relevance to normal-metal nanocircuits, as these patterns can reduce the electrical resistance, electromigration, and hot spots caused by nonuniform heating.

  2. Kink modes and surface currents associated with vertical displacement events

    SciTech Connect (OSTI)

    Manickam, Janardhan; Boozer, Allen; Gerhardt, Stefan

    2012-08-15

    The fast termination phase of a vertical displacement event (VDE) in a tokamak is modeled as a sequence of shrinking equilibria, where the core current profile remains constant so that the safety-factor at the axis, q{sub axis}, remains fixed and the q{sub edge} systematically decreases. At some point, the n = 1 kink mode is destabilized. Kink modes distort the magnetic field lines outside the plasma, and surface currents are required to nullify the normal component of the B-field at the plasma boundary and maintain equilibrium at finite pressure. If the plasma touches a conductor, the current can be transferred to the conductor, and may be measurable by the halo current monitors. This report describes a practical method to model the plasma as it evolves during a VDE, and determine the surface currents, needed to maintain equilibrium. The main results are that the onset conditions for the disruption are that the growth-rate of the n = 1 kink exceeds half the Alfven time and the associated surface current needed to maintain equilibrium exceeds one half of the core plasma current. This occurs when q{sub edge} drops below a low integer, usually 2. Application to NSTX provides favorable comparison with non-axisymmetric halo-current measurements. The model is also applied to ITER and shows that the 2/1 mode is projected to be the most likely cause of the final disruption.

  3. Temperature compensated and self-calibrated current sensor

    DOE Patents [OSTI]

    Yakymyshyn, Christopher Paul; Brubaker, Michael Allen; Yakymyshyn, Pamela Jane

    2007-09-25

    A method is described to provide temperature compensation and reduction of drift due to aging for a current sensor based on a plurality of magnetic field sensors positioned around a current carrying conductor. The offset voltage signal generated by each magnetic field sensor is used to correct variations in the output signal due to temperature variations and aging.

  4. Current-Driven Filament Instabilities in Relativistic Plasmas. Final report

    SciTech Connect (OSTI)

    Chuang Ren

    2013-02-13

    This grant has supported a study of some fundamental problems in current- and flow-driven instabilities in plasmas and their applications in inertial confinement fusion (ICF) and astrophysics. It addressed current-driven instabilities and their roles in fast ignition, and flow-driven instabilities and their applications in astrophysics.

  5. DPSS Laser Beam Quality Optimization Through Pump Current Tuning

    SciTech Connect (OSTI)

    Omohundro, Rob; Callen, Alice; Sukuta, Sydney; /San Jose City Coll.

    2012-03-30

    The goal of this study is to demonstrate how a DPSS laser beam's quality parameters can be simultaneously optimized through pump current tuning. Two DPSS lasers of the same make and model were used where the laser diode pump current was first varied to ascertain the lowest RMS noise region. The lowest noise was found to be 0.13% in this region and the best M{sup 2} value of 1.0 and highest laser output power were simultaneously attained at the same current point. The laser manufacturer reported a M{sup 2} value of 1.3 and RMS noise value of .14% for these lasers. This study therefore demonstrates that pump current tuning a DPSS laser can simultaneously optimize RMS Noise, Power and M{sup 2} values. Future studies will strive to broaden the scope of the beam quality parameters impacted by current tuning.

  6. Fast chirality reversal of the magnetic vortex by electric current

    SciTech Connect (OSTI)

    Lim, W. L. Liu, R. H.; Urazhdin, S.; Tyliszczak, T.; Erokhin, S. G.; Berkov, D.

    2014-12-01

    The possibility of high-density information encoding in magnetic materials by topologically stable inhomogeneous magnetization configurations such as domain walls, skyrmions, and vortices has motivated intense research into mechanisms enabling their control and detection. While the uniform magnetization states can be efficiently controlled by electric current using magnetic multilayer structures, this approach has proven much more difficult to implement for inhomogeneous states. Here, we report direct observation of fast reversal of magnetic vortex by electric current in a simple planar structure based on a bilayer of spin Hall material Pt with a single microscopic ferromagnetic disk contacted by asymmetric electrodes. The reversal is enabled by a combination of the chiral Oersted field and spin current generated by the nonuniform current distribution in Pt. Our results provide a route for the efficient control of inhomogeneous magnetization configurations by electric current.

  7. Sex-based differences in gene expression in hippocampus following postnatal lead exposure

    SciTech Connect (OSTI)

    Schneider, J.S. Anderson, D.W.; Sonnenahalli, H.; Vadigepalli, R.

    2011-10-15

    The influence of sex as an effect modifier of childhood lead poisoning has received little systematic attention. Considering the paucity of information available concerning the interactive effects of lead and sex on the brain, the current study examined the interactive effects of lead and sex on gene expression patterns in the hippocampus, a structure involved in learning and memory. Male or female rats were fed either 1500 ppm lead-containing chow or control chow for 30 days beginning at weaning.Blood lead levels were 26.7 {+-} 2.1 {mu}g/dl and 27.1 {+-} 1.7 {mu}g/dl for females and males, respectively. The expression of 175 unique genes was differentially regulated between control male and female rats. A total of 167 unique genes were differentially expressed in response to lead in either males or females. Lead exposure had a significant effect without a significant difference between male and female responses in 77 of these genes. In another set of 71 genes, there were significant differences in male vs. female response. A third set of 30 genes was differentially expressed in opposite directions in males vs. females, with the majority of genes expressed at a lower level in females than in males. Highly differentially expressed genes in males and females following lead exposure were associated with diverse biological pathways and functions. These results show that a brief exposure to lead produced significant changes in expression of a variety of genes in the hippocampus and that the response of the brain to a given lead exposure may vary depending on sex. - Highlights: > Postnatal lead exposure has a significant effect on hippocampal gene expression patterns. > At least one set of genes was affected in opposite directions in males and females. > Differentially expressed genes were associated with diverse biological pathways.

  8. Prenatal ethanol exposure programs an increased susceptibility of non-alcoholic fatty liver disease in female adult offspring rats

    SciTech Connect (OSTI)

    Shen, Lang; Liu, Zhongfen; Gong, Jun; Zhang, Li; Wang, Linlong; Magdalou, Jacques; Chen, Liaobin; Wang, Hui

    2014-01-15

    Prenatal ethanol exposure (PEE) induces dyslipidemia and hyperglycemia in fetus and adult offspring. However, whether PEE increases the susceptibility to non-alcoholic fatty liver disease (NAFLD) in offspring and its underlying mechanism remain unknown. This study aimed to demonstrate an increased susceptibility to high-fat diet (HFD)-induced NAFLD and its intrauterine programming mechanisms in female rat offspring with PEE. Rat model of intrauterine growth retardation (IUGR) was established by PEE, the female fetus and adult offspring that fed normal diet (ND) or HFD were sacrificed. The results showed that, in PEE + ND group, serum corticosterone (CORT) slightly decreased and insulin-like growth factor-1 (IGF-1) and glucose increased with partial catch-up growth; In PEE + HFD group, serum CORT decreased, while serum IGF-1, glucose and triglyceride (TG) increased, with notable catch-up growth, higher metabolic status and NAFLD formation. Enhanced liver expression of the IGF-1 pathway, gluconeogenesis, and lipid synthesis as well as reduced expression of lipid output were accompanied in PEE + HFD group. In PEE fetus, serum CORT increased while IGF-1 decreased, with low body weight, hyperglycemia, and hepatocyte ultrastructural changes. Hepatic IGF-1 expression as well as lipid output was down-regulated, while lipid synthesis significantly increased. Based on these findings, we propose a “two-programming” hypothesis for an increased susceptibility to HFD-induced NAFLD in female offspring of PEE. That is, the intrauterine programming of liver glucose and lipid metabolic function is “the first programming”, and postnatal adaptive catch-up growth triggered by intrauterine programming of GC-IGF1 axis acts as “the second programming”. - Highlights: • Prenatal ethanol exposure increase the susceptibility of NAFLD in female offspring. • Prenatal ethanol exposure reprograms fetal liver’s glucose and lipid metabolism . • Prenatal ethanol exposure cause the adaptive change of glucocorticoid-IGF1 axis.

  9. An ethanolic extract of black cohosh causes hematological changes but not estrogenic effects in female rodents

    SciTech Connect (OSTI)

    Mercado-Feliciano, Minerva; Cora, Michelle C.; Witt, Kristine L.; Granville, Courtney A.; Hejtmancik, Milton R.; Fomby, Laurene; Knostman, Katherine A.; Ryan, Michael J.; Newbold, Retha; Smith, Cynthia; Foster, Paul M.; Vallant, Molly K.; Stout, Matthew D.

    2012-09-01

    Black cohosh rhizome (Actaea racemosa) is used as a remedy for pain and gynecological ailments; modern preparations are commonly sold as ethanolic extracts available as dietary supplements. Black cohosh was nominated to the National Toxicology Program (NTP) for toxicity testing due to its widespread use and lack of safety data. Several commercially available black cohosh extracts (BCE) were characterized by the NTP, and one with chemical composition closest to formulations available to consumers was used for all studies. Female B6C3F1/N mice and Wistar Han rats were given 0, 15 (rats only), 62.5 (mice only), 125, 250, 500, or 1000 mg/kg/day BCE by gavage for 90 days starting at weaning. BCE induced dose-dependent hematological changes consistent with a non-regenerative macrocytic anemia and increased frequencies of peripheral micronucleated red blood cells (RBC) in both species. Effects were more severe in mice, which had decreased RBC counts in all treatment groups and increased micronucleated RBC at doses above 125 mg/kg. Dose-dependent thymus and liver toxicity was observed in rats but not mice. No biologically significant effects were observed in other organs. Puberty was delayed 2.9 days at the highest treatment dose in rats; a similar magnitude delay in mice occurred in the 125 and 250 mg/kg groups but not at the higher doses. An additional uterotrophic assay conducted in mice exposed for 3 days to 0.001, 0.01, 0.1, 1, 10, 100 and 500 mg/kg found no estrogenic or anti-estrogenic activity. These are the first studies to observe adverse effects of BCE in rodents. -- Highlights: ? Mice and rats were dosed with black cohosh extract for 90 days starting at weaning. ? Hematological changes were consistent with a non-regenerative macrocytic anemia. ? Peripheral micronucleated red blood cell frequencies increased. ? Puberty was delayed 2.9 days in rats. ? No estrogenic/anti-estrogenic activity was seen in the uterotrophic assay.

  10. Current disruption and its spreading in collisionless magnetic reconnection

    SciTech Connect (OSTI)

    Jain, Neeraj; Büchner, Jörg; Ji, Hantao

    2013-11-15

    Recent magnetic reconnection experiments (MRX) [Dorfman et al., Geophys. Res. Lett. 40, 233 (2013)] have disclosed current disruption in the absence of an externally imposed guide field. During current disruption in MRX, both the current density and the total observed out-of-reconnection-plane current drop simultaneous with a rise in out-of-reconnection-plane electric field. Here, we show that current disruption is an intrinsic property of the dynamic formation of an X-point configuration of magnetic field in magnetic reconnection, independent of the model used for plasma description and of the dimensionality (2D or 3D) of reconnection. An analytic expression for the current drop is derived from Ampere's Law. Its predictions are verified by 2D and 3D electron-magnetohydrodynamic (EMHD) simulations. Three dimensional EMHD simulations show that the current disruption due to localized magnetic reconnection spreads along the direction of the electron drift velocity with a speed which depends on the wave number of the perturbation. The implications of these results for MRX are discussed.

  11. MHD simulation of RF current drive in MST

    SciTech Connect (OSTI)

    Hendries, E. R.; Anderson, J. K.; Forest, C. B.; Reusch, J. A.; Seltzman, A. H.; Sovinec, C. R.; Diem, S.; Harvey, R. W.

    2014-02-12

    Auxiliary heating and current drive using RF waves such as the electron Bernstein wave (EBW) promises to advance the performance of the reversed field pinch (RFP). In previous computational work [1], a hypothetical edge-localized current drive is shown to suppress the tearing activity which governs the macroscopic transport properties of the RFP. The ideal conditions for tearing stabilization include a reduced toroidal induction, and precise width and radial position of the Gaussian-shaped external current drive. In support of the EBW experiment on the Madison Symmetric Torus, an integrated modeling scheme now incorporates ray tracing and Fokker-Plank predictions of auxiliary current into single fluid MHD. Simulations at low Lundquist number (S ∼ 10{sup 4}) generally agree with the previous work; significantly more burdensome simulations at MST-like Lundquist number (S ∼ 3×10{sup 6}) show unexpected results. The effect on nonlinearly saturated current profile by a particular RF-driven external force decreases in magnitude and widens considerably as the Lundquist number increases toward experimental values. Simulations reproduce the periodic current profile relaxation events observed in experiment (sawteeth) in the absence of current profile control. Reduction of the tearing mode amplitudes is still observable; however, reduction is limited to periods between the large bursts of magnetic activity at each sawtooth. The sawtoothing pattern persists with up to 10 MW of externally applied RF power. Periods with prolonged low tearing amplitude are predicted with a combination of external current drive and a reduced toroidal loop voltage, consistent with previous conclusions. Finally, the resistivity profile is observed to have a strong effect on the optimal externally driven current profile for mode stabilization.

  12. Motor monitoring method and apparatus using high frequency current components

    DOE Patents [OSTI]

    Casada, Donald A.

    1996-01-01

    A motor current analysis method and apparatus for monitoring electrical-motor-driven devices. The method and apparatus utilize high frequency portions of the motor current spectra to evaluate the condition of the electric motor and the device driven by the electric motor. The motor current signal produced as a result of an electric motor is monitored and the low frequency components of the signal are removed by a high-pass filter. The signal is then analyzed to determine the condition of the electrical motor and the driven device.

  13. For Current and Retired Employees Only - Hanford Site

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Organization For Current and Retired Employees Only About Us HERO Home All HDC Discounts (PDF) For Current and Retired Employees Only For Current and Retired Employees Only Email Email Page | Print Print Page |Text Increase Font Size Decrease Font Size Seattle Mariners vs. St. Louis Cardinals (pdf) June 26, 2016 Seattle Sounders vs. L.A. Galaxy (pdf) July 9, 2016 Boat Races (pdf) July 30 - 31, 2016 Dust Devils Baseball and BBQ (pdf) July 22 or August 11, 2016 The Tillicum Village Excursion (pdf)

  14. Energy current imaging method for time reversal in elastic media

    SciTech Connect (OSTI)

    Anderson, Brian E; Ulrich, Timothy J; Le Bas, Pierre - Yves A; Larmat, Carene; Johnson, Paul A; Guyer, Robert A; Griffa, Michele

    2009-01-01

    An energy current imaging method is presented for use in locating sources of wave energy during the back propagation stage of the time reversal process. During the back propagation phase of an ideal time reversal experiment, wave energy coalesces from all angles of incidence to recreate the source event; after the recreation, wave energy diverges in every direction. An energy current imaging method based on this convergence/divergence behavior has been developed. The energy current imaging method yields a smaller spatial distribution for source reconstruction than is possible with traditional energy imaging methods.

  15. Effect of current injection into thin-film Josephson junctions

    SciTech Connect (OSTI)

    Kogan, V. G.; Mints, R. G.

    2014-11-11

    New thin-film Josephson junctions have recently been tested in which the current injected into one of the junction banks governs Josephson phenomena. One thus can continuously manage the phase distribution at the junction by changing the injected current. Our method of calculating the distribution of injected currents is also proposed for a half-infinite thin-film strip with source-sink points at arbitrary positions at the film edges. The strip width W is assumed small relative to Λ=2λ2/d;λ is the bulk London penetration depth of the film material and d is the film thickness.

  16. Tunable Polarization of Spin Polarized Current by Magnetic Field

    SciTech Connect (OSTI)

    Joo, S.; Kim, K.; Lee, J.; Kim, T.; Rhie, K.; Hong, J.; Shin, K-H.

    2010-10-10

    The spin polarization of a high g-factor bulk semiconductor is theoretically investigated in the presence of a magnetic field parallel to a driving electric field. Calculations have been carried out using the energy-dependent relaxation time approximation in association with spin-flip scattering. As the magnitude of the magnetic field increases, the spin-polarized current alternates between the spin-up and spin-down states for the low spin-scattering system. This implies that the current polarization can be tuned by controlling the magnetic field strength, suggesting possible applications to spintronic devices. An experimental method for investigating alternative current polarization is also considered.

  17. Motor monitoring method and apparatus using high frequency current components

    DOE Patents [OSTI]

    Casada, D.A.

    1996-05-21

    A motor current analysis method and apparatus for monitoring electrical-motor-driven devices are disclosed. The method and apparatus utilize high frequency portions of the motor current spectra to evaluate the condition of the electric motor and the device driven by the electric motor. The motor current signal produced as a result of an electric motor is monitored and the low frequency components of the signal are removed by a high-pass filter. The signal is then analyzed to determine the condition of the electrical motor and the driven device. 16 figs.

  18. Current Status of the WArP Experiment

    SciTech Connect (OSTI)

    Szelc, A. M.

    2009-04-17

    The WArP Collaboration is getting ready to run the WArP 100 liter detector in the Underground laboratory in Gran Sasso, Italy. The new detector, scheduled to run in 2008, should improve the current sensitivity limits by a factor of 10. Meanwhile, an active R and D program is being conducted. The highlights of this program, namely the runs with Argon depleted in the radioactive isotope {sup 39}Ar currently in preparation and the measurements of the effects of contamination with Nitrogen and Oxygen on the Liquid Argon effective light yield will be presented as well as the current status of the 100 liter detector.

  19. Scaling of lower hybrid current drive with temperature

    SciTech Connect (OSTI)

    Harvey, R.W. ); McCoy, M.G. ); Ram, A.K.; Bers, A. ); Fuchs, V. )

    1992-06-01

    The 3-D Fokker-Planck/quasilinear code (CQL3D) is used to study the temperature scaling of lower hybrid current drive (LHCD) in the JET and JT-60 experiments. An offset-linear increase of current drive efficiency is obtained as a function of volume average temperature {l angle}T{sub e}{r angle} up to {approximately} 2.5, and reduced rate of efficiency increase is found at higher temperatures. The LHCD results indicate some fast wave/LH current drive synergy in the JET LH/FW experiments; however, code results discussed here show that synergy is not due to TTMP damping of the fast wave.

  20. Effect of current injection into thin-film Josephson junctions

    DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)

    Kogan, V. G.; Mints, R. G.

    2014-11-11

    New thin-film Josephson junctions have recently been tested in which the current injected into one of the junction banks governs Josephson phenomena. One thus can continuously manage the phase distribution at the junction by changing the injected current. Our method of calculating the distribution of injected currents is also proposed for a half-infinite thin-film strip with source-sink points at arbitrary positions at the film edges. The strip width W is assumed small relative to Λ=2λ2/d;λ is the bulk London penetration depth of the film material and d is the film thickness.

  1. Cross-sectional relationships of exercise and age to adiposity in60,617 male runners

    SciTech Connect (OSTI)

    Williams, Paul T.; Pate, Russell R.

    2004-06-01

    The objective of this report is to assess in men whether exercise affects the estimated age-related increase in adiposity, and contrariwise, whether age affects the estimated exercise-related decrease in adiposity. Cross-sectional analyses of 64,911 male runners who provided data on their body mass index (97.6 percent), waist (91.1 percent), hip (47.1 percent), and chest circumferences (77.9 percent). Between 18 to 55 years old, the decline in BMI with weekly distance run (slope+-SE) was significantly greater in men 25-55 years old (slope+-:-0.036+-0.001 kg/m2 per km/wk) than in younger men (-0.020+-0.002 kg/m 2 per km/wk). Declines in waist circumference with running distance were also significantly greater in older than younger men (P<10-9 for trend),i.e., the slopes decreased progressively from -0.035+-0.004 cm per km/wk in 18-25 year old men to -0.097+-0.003 cm per km/wk in 50-55 year old men. Increases in BMI with age were greater for men who ran under 16km/wk than for longer distance runners. Waist circumference increased with age at all running levels, but the increase appeared to diminish by running further (0.259+-0.015 cm per year if running<8 km/wk and 0.154+-0.003 cm per year for>16 km/wk). In men over 50 years old, BMI declined -0.038+-0.001 kg/m2 per km/wk run when adjusted for age and declined -0.054+-0.003 kg/m2 (increased 0.021+-0.007 cm) per year of age when adjusted for running distance. Their waist circumference declined-0.096+-0.002 cm per km/wk run when adjusted for age and increased 0.021+-0.007 cm per year of age when adjusted for running distance. These cross-sectional data suggest that age and vigorous exercise interact with each other in affecting mens adiposity, and support the proposition that vigorous physical activity must increase with age to prevent middle-age weight gain. We estimate that a man who ran 16 km/wk at age 25 would need to increase their weekly running distance by 65.7 km/wk by age 50 in order to maintain his same waist circumference.

  2. Assessment of Energy Production Potential from Ocean Currents...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Report summarizing the results of seven years of numerical model simulations of ocean currents in the United States and the database created with that data. PDF icon Assessment of ...

  3. Fuel Quality and Metering: Current Status and Future Needs |...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Fuel Quality and Metering: Current Status and Future Needs These slides were presented at ... 10-11, 2009 BILIWG Meeting: DOE Hydrogen Quality Working Group Update and Recent Progress ...

  4. Webinar: Hydrogen Fueling for Current and Anticipated FCEVs

    Broader source: Energy.gov [DOE]

    The Energy Department will present a live webinar titled "Hydrogen Fueling for Current and Anticipated Fuel Cell Electric Vehicles" on Tuesday, June 24, from 12:00 p.m. to 1:00 p.m. Eastern...

  5. Positive-electrode current collector for liquid-metal cells

    DOE Patents [OSTI]

    Shimotake, H.; Bartholme, L.G.

    1982-09-27

    A current collector for the positive electrode of an electrochemical cell with a positive electrode including a sulfide. The cell also has a negative electrode and a molten salt electrolyte including halides of a metal selected from the alkali metals and the alkaline earth metals in contact with both the positive and negative electrodes. The current collector has a base metal of copper, silver, gold, aluminum or alloys thereof with a coating thereon of iron, nickel, chromium or alloys thereof. The current collector when subjected to cell voltage forms a sulfur-containing compound on the surface thereby substantially protecting the current collector from further attack by sulfur ions during cell operation. Both electroless and electrolytic processes may be used to deposit coatings.

  6. Motor current signature analysis method for diagnosing motor operated devices

    DOE Patents [OSTI]

    Haynes, Howard D.; Eissenberg, David M.

    1990-01-01

    A motor current noise signature analysis method and apparatus for remotely monitoring the operating characteristics of an electric motor-operated device such as a motor-operated valve. Frequency domain signal analysis techniques are applied to a conditioned motor current signal to distinctly identify various operating parameters of the motor driven device from the motor current signature. The signature may be recorded and compared with subsequent signatures to detect operating abnormalities and degradation of the device. This diagnostic method does not require special equipment to be installed on the motor-operated device, and the current sensing may be performed at remote control locations, e.g., where the motor-operated devices are used in accessible or hostile environments.

  7. Positive electrode current collector for liquid metal cells

    DOE Patents [OSTI]

    Shimotake, Hiroshi; Bartholme, Louis G.

    1984-01-01

    A current collector for the positive electrode of an electrochemical cell with a positive electrode including a sulfide. The cell also has a negative electrode and a molten salt electrolyte including halides of a metal selected from the alkali metals and the alkaline earth metals in contact with both the positive and negative electrodes. The current collector has a base metal of copper, silver, gold, aluminum or alloys thereof with a coating thereon of iron, nickel, chromium or alloys thereof. The current collector when subjected to cell voltage forms a sulfur-containing compound on the surface thereby substantially protecting the current collector from further attack by sulfur ions during cell operation. Both electroless and electrolytic processes may be used to deposit coatings.

  8. Land Use and Water Efficiency in Current and Potential Future...

    Office of Scientific and Technical Information (OSTI)

    Water Efficiency in Current and Potential Future U.S. Corn and Brazilian Sugarcane Ethanol Systems (Poster) Citation Details In-Document Search Title: Land Use and Water Efficiency ...

  9. Current Awards | U.S. DOE Office of Science (SC)

    Office of Science (SC) Website

    Experimental Program to Stimulate Competitive Research (EPSCoR) EPSCoR Home About Current Awards How to Apply Manage Your Grant Recent News SBIRSTTR Home BES Home Contact ...

  10. Measurement of total ion current from vacuum arc plasmasources

    SciTech Connect (OSTI)

    Oks, Efim M.; Savkin, Konstantin P.; Yushkov, Georgiu Yu.; Nikolaev, Alexey G.; Anders, A.; Brown, Ian G.

    2005-07-01

    The total ion current generated by a vacuum arc plasma source was measured. The discharge system investigated allowed ion collection from the arc plasma streaming through a hemispherical mesh anode with geometric transparency of 72 percent. A range of different cathode materials was investigated, and the arc current was varied over the range 50-500 A. We find that the normalized ion current (Iion/Iarc) depends on the cathode material, with values in the range from 5 percent to 19 percent and generally greater for elements of low cohesive energy. The application of a strong axial magnetic field in the cathode and arc region leads to increased normalized ion current, but only by virtue of enhanced ion charge states formed in a strong magnetic field.

  11. Metal Current Collector Protected by Oxide Film - Energy Innovation...

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    a cost-efficient, structurally sound technology for current collection and cell-to-cell interconnection of high ... It is particularly useful for large cells (e.g. 1m x 1m ...

  12. Eigenmodes of quasi-static magnetic islands in current sheet

    SciTech Connect (OSTI)

    Li Yi; Cai Xiaohui; Chai Lihui; Wang Shui; Zheng Huinan; Shen Chao

    2011-12-15

    As observation have shown, magnetic islands often appear before and/or after the onset of magnetic reconnections in the current sheets, and they also appear in the current sheets in the solar corona, Earth's magnetotail, and Earth's magnetopause. Thus, the existence of magnetic islands can affect the initial conditions in magnetic reconnection. In this paper, we propose a model of quasi-static magnetic island eigenmodes in the current sheet. This model analytically describes the magnetic field structures in the quasi-static case, which will provide a possible approach to reconstructing the magnetic structures in the current sheet via observation data. This model is self-consistent in the kinetic theory. Also, the distribution function of charged particles in the magnetic island can be calculated.

  13. Presentation: Introduction to Current & Prior Studies of the DOE Laboratories

    Broader source: Energy.gov [DOE]

    A briefing to the Comission to Review the Effectiveness of the National Energy Laboratories on current and prior studies of the DOE Laboratories delivered by Mark Taylor, Susannah Howieson, and...

  14. Measurement of total ion current from vacuum arc plasma sources

    SciTech Connect (OSTI)

    Oks, E.M.; Savkin, K.P.; Yushkov, G.Yu.; Nikolaev, A.G.; Anders, A.; Brown, I.G.

    2006-03-15

    The total ion current generated by a vacuum arc plasma source was measured. The discharge system investigated allowed ion collection from the arc plasma streaming through a hemispherical mesh anode with geometric transparency of 72%. A range of different cathode materials was investigated, and the arc current was varied over the range of 50-500 A. We find that the normalized ion current (I{sub ion}/I{sub arc}) depends on the cathode material, with values in the range from 5% to 19% and generally greater for elements of low cohesive energy. The application of a strong axial magnetic field in the cathode and arc region leads to increased normalized ion current, but only by virtue of enhanced ion charge states formed in a strong magnetic field.

  15. There are currently no significant reported user bugs with the...

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    no significant reported user bugs with the GNU compilers. November 18, 2013 by Mike Stewart, NERSC USG. Status: No current NERSC user bugs. Subscribe via RSS Subscribe Browse by...

  16. Aquantis C-Plane Ocean Current Turbine Project

    SciTech Connect (OSTI)

    Fleming, Alex

    2015-09-16

    The Aquantis 2.5 MW Ocean Current Generation Device technology developed by Dehlsen Associates, LLC (DA) is a derivation of wind power generating technology (a means of harnessing a slow moving fluid) adapted to the ocean environment. The Aquantis Project provides an opportunity for accelerated technological development and early commercialization, since it involves the joining of two mature disciplines: ocean engineering and wind turbine design. The Aquantis Current Plane (C-Plane) technology is an ocean current turbine designed to extract kinetic energy from a current flow. The technology is capable of achieving competitively priced, continuous, base-load, and reliable power generation from a source of renewable energy not before possible in this scale or form.

  17. Feasibility of Tital and Ocean Current Energy in False Pass,...

    Energy Savers [EERE]

    Monty Worthington Director of Project Development - Alaska Feasibility of Tidal and Ocean Current Energy in False Pass, Aleutian Islands, Alaska (DE-EE0005624.000) Presented to DOE ...

  18. Interpretation of Synthetic Aperture Radar measurements of ocean currents

    SciTech Connect (OSTI)

    Rufenach, C.L.; Shuchman, R.A.; Lyzenga, D.R.

    1983-02-28

    Synthetic Aperture Radar (SAR) experiments hae been performed over the last few years to measure ocean currents inferred from shifts in the Doppler spectral peak. Interpretations of aircraft SAR measurements, when compared with limited surface values, tend to underestimate the currents by about 25%. A theory is developed that modifies the classical Doppler expression showing that the radar measurements are dependent on the radar processor (system) bandwidth and the received signal bandwidth. Measured bandwidths give a correction that increases the inferred current values by about 25%, bringing the measurements into good agreement. This new correction lends credence to the theory and increases the potential for application of SAR systems to future ocean current measurements. SAR measurements should include the determination of processor and signal bandwidths such that this correction can be applied.

  19. Vacuum gaps with small tunnel currents at large electric field...

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    small tunnel currents at large electric field and its potential applications for energy storage, charge storage and power supplies. Friday, May 27, 2011 - 4:00pm SSRL Conference...

  20. Neutral Current Elastic Interactions at MiniBooNE

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    A Neutral current event results in an energetic nucleon that interacts with the detector media, ionizing and exciting atoms which emit photons that can be detected by the (PMTs)....

  1. North Brawley Power Plant Placed in Service; Currently Generating...

    Open Energy Info (EERE)

    Placed in Service; Currently Generating 17 MW; Additional Operations Update Jump to: navigation, search OpenEI Reference LibraryAdd to library Web Site: North Brawley Power Plant...

  2. Describing Current & Potential Markets for Alternative-Fuel Vehicles

    U.S. Energy Information Administration (EIA) Indexed Site

    Energy, and Safety Data" on alternative fuels and alternative-fuel vehicles. No specific projects are currently underway. Some related data may be developed as part of the EPACT...

  3. Proton Therapy for Cancer: Current Status, Promise and Challenges...

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    March 9, 2016, 4:15pm to 5:30pm Colloquia MBG Auditorium Proton Therapy for Cancer: Current Status, Promise and Challenges Dr. Dennis Mah ProCure Proton Therapy Center Colloquium...

  4. Current Collector Corrosion in Ca-Ion Batteries - Joint Center...

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    May 23, 2015, Research Highlights Current Collector Corrosion in Ca-Ion Batteries C45 ... Ca-ion batteries, but it should not be a roadblock to practical implementation. ...

  5. Atmospheric Radiation Measurement Program Science Plan. Current Status and

    Office of Scientific and Technical Information (OSTI)

    Future Directions of the ARM Science Program (Technical Report) | SciTech Connect Atmospheric Radiation Measurement Program Science Plan. Current Status and Future Directions of the ARM Science Program Citation Details In-Document Search Title: Atmospheric Radiation Measurement Program Science Plan. Current Status and Future Directions of the ARM Science Program The Atmospheric Radiation Measurement (ARM) Program has matured into one of the key programs in the U.S. Climate Change Science

  6. Emerging Resistive Switching Memory Technologies: Overview and Current

    Office of Scientific and Technical Information (OSTI)

    Status. (Conference) | SciTech Connect Resistive Switching Memory Technologies: Overview and Current Status. Citation Details In-Document Search Title: Emerging Resistive Switching Memory Technologies: Overview and Current Status. Abstract not provided. Authors: Marinella, Matthew Publication Date: 2014-05-01 OSTI Identifier: 1147687 Report Number(s): SAND2014-4459C 521502 DOE Contract Number: DE-AC04-94AL85000 Resource Type: Conference Resource Relation: Conference: ISCAS 2014 held June

  7. Emittance and Current of Electrons Trapped in a Plasma Wakefield

    Office of Scientific and Technical Information (OSTI)

    Accelerator (Conference) | SciTech Connect Emittance and Current of Electrons Trapped in a Plasma Wakefield Accelerator Citation Details In-Document Search Title: Emittance and Current of Electrons Trapped in a Plasma Wakefield Accelerator In recent experiments plasma electrons became trapped in a plasma wakefield accelerator (PWFA). The transverse size of these trapped electrons on a downstream diagnostic yields an upper limit measurement of transverse normalized emittance divided by peak

  8. Ferromagnets as pure spin current generators and detectors (Patent) |

    Office of Scientific and Technical Information (OSTI)

    SciTech Connect Patent: Ferromagnets as pure spin current generators and detectors Citation Details In-Document Search Title: Ferromagnets as pure spin current generators and detectors Provided is a spintronics device. The spintronics can include a ferromagnetic metal layer, a positive electrode disposed on a first surface portion of the ferromagnetic metal layer, and a negative electrode disposed on a second surface portion of the ferromagnetic metal. Authors: Qu, Danru ; Miao, Bingfeng ;

  9. Generation of magnetic skyrmion bubbles by inhomogeneous spin Hall currents

    Office of Scientific and Technical Information (OSTI)

    (Journal Article) | DOE PAGES Generation of magnetic skyrmion bubbles by inhomogeneous spin Hall currents This content will become publicly available on March 7, 2017 « Prev Next » Title: Generation of magnetic skyrmion bubbles by inhomogeneous spin Hall currents Authors: Heinonen, Olle ; Jiang, Wanjun ; Somaily, Hamoud ; te Velthuis, Suzanne G. E. ; Hoffmann, Axel Publication Date: 2016-03-07 OSTI Identifier: 1240477 Type: Publisher's Accepted Manuscript Journal Name: Physical Review B

  10. Sandia National Laboratories: Working with Sandia: Current Suppliers

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Current Suppliers Construction Supplier Resources iSupplier iSupplier Account Manage your company profile within our iSupplier Portal How to manage your iSupplier Account Accounts Payable Accounts Payable Invoicing Process Contract Information Contract Information Construction/Facilities Construction/Facilities Contract Audit Contract Audit Economic Impact Economic Impact Current and Past News Scam Notice, July 2015 Suspect/Counterfeit Help Management iSupplier Account supreg@sandia.gov

  11. Laser diagnostic for high current H{sup {minus}} beams

    SciTech Connect (OSTI)

    Shafer, R.E.

    1998-01-01

    Laser photodetachment can be used on high current, high energy H{sup {minus}} beams to carry out a wide variety of beam diagnostic measurements parasitically during normal operation, without having to operate the facility at either reduced current or duty cycle. Suitable Q-switched laser systems are small, inexpensive, and can be mounted on or near the beamline. Most of the proposed laser-based diagnostics techniques have already been demonstrated.

  12. Current Opportunities Related to Water-Energy | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Current Opportunities Related to Water-Energy Current Opportunities Related to Water-Energy Below are links to Funding Opportunity Announcements (FOAs) and Requests for Information (RFIs) listed related to water-energy. On each web page is a detailed description of the opportunity. Regional and Global Climate Modeling and Integrated Assessment Research: An Integration Framework for Multi-Model, U.S. Regional Climate Evaluation - April 18, 2016 deadline The Office of Biological and Environmental

  13. ARM - ARM Instrumentation Status: New, Current, and Future

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Instrumentation Status: New, Current, and Future Publications Journal Articles Conference Documents Program Documents Technical Reports Publications Database Public Information Materials Image Library Videos Publication Resources Submit a Publication Publishing Procedures ARM Style Guide (PDF, 448KB) Acronyms Glossary Logos Contacts RSS for Publications ARM Instrumentation Status: New, Current, and Future October-December 2010 (PDF, 1.7MB) September 2010 (PDF, 1.0MB) August 2010 (PDF, 1.0MB)

  14. Plasmoid Formation in Current Sheet with Finite Normal Magnetic Component

    Office of Scientific and Technical Information (OSTI)

    (Journal Article) | SciTech Connect Plasmoid Formation in Current Sheet with Finite Normal Magnetic Component Citation Details In-Document Search Title: Plasmoid Formation in Current Sheet with Finite Normal Magnetic Component Authors: Zhu, P. ; Raeder, J. Publication Date: 2013-06-07 OSTI Identifier: 1102825 Type: Publisher's Accepted Manuscript Journal Name: Physical Review Letters Additional Journal Information: Journal Volume: 110; Journal Issue: 23; Journal ID: ISSN 0031-9007 Publisher:

  15. Direct current uninterruptible power supply method and system

    DOE Patents [OSTI]

    Sinha, Gautam

    2003-12-02

    A method and system are described for providing a direct current (DC) uninterruptible power supply with the method including, for example: continuously supplying fuel to a turbine; converting mechanical power from the turbine into alternating current (AC) electrical power; converting the AC electrical power to DC power within a predetermined voltage level range; supplying the DC power to a load; and maintaining a DC load voltage within the predetermined voltage level range by adjusting the amount of fuel supplied to the turbine.

  16. Ferromagnets as pure spin current generators and detectors (Patent) |

    Office of Scientific and Technical Information (OSTI)

    DOEPatents Ferromagnets as pure spin current generators and detectors Title: Ferromagnets as pure spin current generators and detectors Provided is a spintronics device. The spintronics can include a ferromagnetic metal layer, a positive electrode disposed on a first surface portion of the ferromagnetic metal layer, and a negative electrode disposed on a second surface portion of the ferromagnetic metal. Inventors: Qu, Danru ; Miao, Bingfeng ; Chien, Chia -Ling ; Huang, Ssu -Yen Issue Date:

  17. Current Challenges in Commercially Producing Biofuels from Lignocellulosic

    Office of Scientific and Technical Information (OSTI)

    Biomass (Journal Article) | SciTech Connect Current Challenges in Commercially Producing Biofuels from Lignocellulosic Biomass Citation Details In-Document Search Title: Current Challenges in Commercially Producing Biofuels from Lignocellulosic Biomass Biofuels that are produced from biobased materials are a good alternative to petroleum based fuels. They offer several benefits to society and the environment. Producing second generation biofuels is even more challenging than producing first

  18. Current-biased potentiometric NOx sensor for vehicle emissions

    DOE Patents [OSTI]

    Martin, Louis Peter; Pham, Ai Quoc

    2006-12-26

    A nitrogen oxide sensor system for measuring the amount of nitrogen oxide in a gas. A first electrode is exposed to the gas. An electrolyte is positioned in contact with the first electrode. A second electrode is positioned in contact with the electrolyte. A means for applying a fixed current between the first electrode and the second electrode and monitoring the voltage required to maintain the fixed current provides a measurement of the amount of nitrogen oxide in the gas.

  19. Forum engages current and developing nuclear security leaders | National

    National Nuclear Security Administration (NNSA)

    Nuclear Security Administration Forum engages current and developing nuclear security leaders Monday, April 18, 2016 - 9:37am Graduate Fellow Temica Stewart listens as NNSA Associate Administrator for Management and Budget Randall Hendrickson speaks with Fellows and alumni at the Alumni Forum. In late March, the NNSA Graduate Fellowship Program (NGFP) Alumni Forum brought together current and former fellows with leaders from across the national laboratories and the nuclear security

  20. Toward Understanding of Differences in Current Cloud Retrievals of ARM

    Office of Scientific and Technical Information (OSTI)

    Ground-based Measurements (Journal Article) | SciTech Connect Toward Understanding of Differences in Current Cloud Retrievals of ARM Ground-based Measurements Citation Details In-Document Search Title: Toward Understanding of Differences in Current Cloud Retrievals of ARM Ground-based Measurements Accurate observations of cloud microphysical properties are needed for evaluating and improving the representation of cloud processes in climate models. However, large differences are found in