نتایج جستجو برای: cvn

تعداد نتایج: 550  

Journal: :Monthly Notices of the Royal Astronomical Society 1983

Journal: :Procedia Structural Integrity 2016

2004
Tod E Strohmayer

We report on Chandra ACIS observations of the ultracompact AM CVn binary ES Cet. This object has a 10.3 minute binary period and is the most compact of the confirmed AM CVn systems. We have, for the first time, unambiguously detected the X-ray counterpart to ES Cet. In a 20 ksec ACIS-S image a point-like X-ray source is found within 1 " of the catalogued optical position. The mean countrate in ...

2000
T. R. Marsh

We present high resolution spectra of the AM CVn helium binary GP Com at two different wavelength ranges. The spectra show the same flaring behaviour observed in previous UV and optical data. We find that the central spike contributes to the flare spectra indicating that its origin is probably the compact object. We also detect that the central spike moves with orbital phase following an S-wave...

Journal: :Monthly Notices of the Royal Astronomical Society 1983

Journal: :Jurnal Kejuruteraan 2022

The Charpy V Notch toughness (CVN) of steel is an important property while considering structural and heavy loading conditions. In welded structures, CVN attributed to many variables like composition steel, heat input welding, pre- post-heat treatments the weldment, type welding process etc. regression analysis works accurately for three four variables. weldment associated more than three-four ...

Journal: :Language and speech 2009
Katsuo Tamaoka Shogo Makioka

The present study investigated the existence of a Japanese mental syllabary and units stored therein for speech production. Experiment 1 compared naming latencies between high and low initial mora frequencies using CVCVCV nonwords, indicating that nonwords with a high initial mora frequency were named faster than those with a low frequency initial mora. Experiments 2 and 3 clarified the possibi...

2015
H. C. Campbell T. R. Marsh S. P. Littlefair A. J. Drake J. Fernández-Hernández L. K. Hardy D. L. Harrison K. Iłkiewicz P. G. Jonker C. S. Kochanek B. J. Shappee S. J. Smartt M. A. P. Torres A. Scholz G. Simonian K. Z. Stanek L. Szabados C. Waters R. W. Wilson

We report the discovery and characterisation of a deeply eclipsing AM CVn-system, Gaia14aae (= ASSASN-14cn). Gaia14aae was identified independently by the All-Sky Automated Survey for Supernovae (ASAS-SN; Shappee et al. 2014) and by the Gaia Science Alerts project, during two separate outbursts. A third outburst is seen in archival PanSTARRS-1 (PS1; Schlafly et al. 2012; Tonry et al. 2012; Magn...

Journal: :Journal of applied microbiology 2004
P-K Chang R A Wilson N P Keller T E Cleveland

AIMS To investigate how linoleic acid affects conidial production and sclerotial development in a strictly mitotic Aspergillus parasiticus field isolate as related to improving biocompetitivity of atoxigenic Aspergillus species. METHODS AND RESULTS We disrupted A. parasiticusDelta12-oleic acid desaturase gene (odeA) responsible for the conversion of oleic acid to linoleic acid. We examined co...

2014
LAURA BARTLETT DAVID VAN AKEN

Lightweight advanced high strength steels (AHSS) with aluminum contents between 4 and 12 weight percent have been the subject of intense interest in the last decade because of an excellent combination of high strain rate toughness coupled with up to a 17% reduction in density. Fully austenitic cast steels with a nominal composition of Fe-30%Mn-9%Al-0.9%C are almost 15% less dense than quenched ...

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