نتایج جستجو برای: 4000 2 4

تعداد نتایج: 3122165  

2016
Lori J. Leibold Emily Buss

Susceptibility to remote-frequency masking in children and adults was evaluated with respect to three stimulus features: (1) masker bandwidth, (2) spectral separation of the signal and masker, and (3) gated versus continuous masker presentation. Listeners were 4- to 6-year-olds, 7- to 10-year-olds, and adults. Detection thresholds for a 500-ms, 2000-Hz signal were estimated in quiet or presente...

2017
Hyewon Lee Min Hwang Eduard Muljadi Poul Sørensen Yong Cheol Kang Frede Blaabjerg

Hyewon Lee 1, Min Hwang 1, Eduard Muljadi 2, Poul Sørensen 3 and Yong Cheol Kang 4,* 1 Department of Electrical Engineering and Wind Energy Grid-Adaptive Technology (WeGAT) Research Center, Chonbuk National University, Chonju 54896, Korea; [email protected] (H.L.); [email protected] (M.H.) 2 National Renewable Energy Laboratory, Golden, CO 80401, USA; [email protected] 3 Department ...

Journal: :Health economics 2009
Hongmei Yi Linxiu Zhang Kim Singer Scott Rozelle Scott Atlas

The overall goal of the paper is to understand the progress of the design and implementation of China's New Cooperative Medical System (NCMS) program between 2004 (the second year of the program) and 2007. In the paper we seek to assess some of the strengths and weaknesses of the program using a panel of national-representative, household survey data that were collected in 2005 and early 2008. ...

2003
P.Udhayakala A.Jayanthi T. V. Rajendiran S. Gunasekaran

The FT-IR (4000-400 cm) and FTRaman (4000-100 cm) spectra of 2-chloro-4-nitroaniline (2Cl4NA) have been recorded using Bruker IFS 66 V spectrometer. An ab initio HF(HF/6-311G(d,p) and DFT(B3LYP/6-311G(d,p)) calculations have been performed giving energies, optimized structures, harmonic vibrational frequencies,IR intensities and Raman activities. The study is extended to the HOMO LUMO analysis ...

Journal: :Wilderness & environmental medicine 2015
Juan A Silva-Urra Cristian A Núñez-Espinosa Oscar A Niño-Mendez Héctor Gaitán-Peñas Cesare Altavilla Andrés Toro-Salinas Joan R Torrella Teresa Pagès Casimiro F Javierre Claus Behn Ginés Viscor

OBJECTIVE The possible effects of blue light during acute hypoxia and the circadian rhythm on several physiological and cognitive parameters were studied. METHODS Fifty-seven volunteers were randomly assigned to 2 groups: nocturnal (2200-0230 hours) or diurnal (0900-1330 hours) and exposed to acute hypoxia (4000 m simulated altitude) in a hypobaric chamber. The participants were illuminated b...

Journal: :Journal of Investigative Dermatology 1946

2007
Douglas Lanman

Recall, from Theorem 8.1-2 on page 490 in [4], that a random process X(t) with autocorrelation function RXX(t1, t2) has a m.s. derivative at time t if ∂RXX(t1, t2)/∂t1∂t2 exists at t1 = t2 = t. Furthermore, we recall that the correlation function RXX(t1, t2) is related to the covariance function KXX(t1, t2) as follows. RXX(t1, t2) = KXX(t1, t2) + μX(t1)μX(t2) (1) For this problem we have a cons...

Journal: :Acta Crystallographica Section E Structure Reports Online 2011

Journal: :Journal of environmental quality 2004
M L Adam S D Comfort M C Morley D D Snow

Ground water beneath the U.S. Department of Energy Pantex Plant is contaminated with the high explosive RDX (hexahydro-1,3,5-trinitro-1,3,5 triazine). The USDOE Innovative Treatment and Remediation Demonstration (ITRD) program identified in situ oxidation by permanganate as a technology fit for further investigation. We evaluated the efficacy of KMnO(4) to transform and mineralize RDX by determ...

Journal: :Trends in ecology & evolution 2010
Diane L Haughland Jean-Marc Hero Jim Schieck J Guy Castley Stan Boutin Péter Sólymos Ben E Lawson Gillian Holloway William E Magnusson

1 Department of Biological Sciences, University of Alberta, Edmonton, Alberta, Canada, T6G 2E9 2 Environmental Futures Centre, Griffith School of Environment, Griffith University, Gold Coast campus, QLD 4222, Australia 3 Alberta Biodiversity Monitoring Institute, Alberta Research Council, PO Bag 4000, Vegreville, Alberta, Canada, T9C 1T4 4 Alberta Biodiversity Monitoring Institute, University o...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید