نتایج جستجو برای: uncertainty and frequency

تعداد نتایج: 16891140  

Journal: :Natural Hazards and Earth System Sciences 2021

Abstract. Assessing the risk of a historical-level flood is essential for regional protection and resilience establishment. However, due to limited spatiotemporal coverage observations, impact assessment relies on model simulations thus subject uncertainties from cascade physical processes. This study assesses hazard map with different combinations runoff inputs, variables frequency analysis fi...

Journal: :مجله علوم اعصاب شفای خاتم 0
usha barahmand department of psychology, faculty of education & psychology, university of mohaghegh ardabili, ardabil, iran. zeynab shahbazi young researchers and elites club, science and research branch, islamic azad university, ardabil, iran. parisa kalantari department of psychology, faculty psychology, science and research branch, islamic azad university, ardabil, iran.

intolerance of uncertainty (iu) is increasingly conceptualized as a transdiagnostic factor underlying anxiety disorders and depression. current understanding of the relationship between intolerance of uncertainty and specific obsessive compulsive symptom domains remains limited. the purpose of the present study was to explore the prevalence of obsessive compulsive beliefs and intolerance of unc...

Journal: :تحقیقات اقتصادی 0
حمید عزیزمحمدلو دانشجوی دوره‎ی دکتری علوم اقتصادی دانشگاه تهران

the quality of firms’ reaction against demand uncertainty affects the production inputs employment. in this research i have studied and compared the behavior of active firms in manufacturing sector with respect to the risk attitude and tested it’s effect on production inputs combination(with the special emphasize on labor employment). the research findings reveal that active firms in manufactur...

Journal: :The Journal of the Acoustical Society of America 2008
Bertram Scharf Adam Reeves Holly Giovanetti

Overshoot, the elevation in the threshold for a brief signal that comes on close to masker onset, was measured with signal frequency certain (same frequency on every trial) or uncertain (randomized over trials). In broadband noise, thresholds were higher 2 ms after masker onset than 200 ms later, by 9 dB with frequency certainty, by 6-7 dB with uncertainty. In narrowband noise centered on the s...

Journal: :Communication Research 2011
Jennifer Gibbs Nicole B. Ellison Chih-Hui Lai

This study investigates relationships between privacy concerns, uncertainty reduction behaviors, and self-disclosure among online dating participants, drawing on uncertainty reduction theory and the warranting principle. The authors propose a conceptual model integrating privacy concerns, self-efficacy, and Internet experience with uncertainty reduction strategies and amount of self-disclosure ...

2009
C. W. Oates

We experimentally investigate an optical clock based on Yb (I = 1/2) atoms confined in an optical lattice. We have evaluated all known frequency shifts to the clock transition, including a densitydependent collision shift, with a fractional uncertainty of 3.4 × 10, limited principally by uncertainty in the blackbody radiation Stark shift. We measured the absolute clock transition frequency rela...

2006
S R Jefferts

A recent evaluation of the accuracy of the National Physical Laboratory (NPL) primary frequency standard NPL-CsF1 by K Szymaniec et al (2005 Metrologia 42 49–57) reported an overall frequency uncertainty of δν/ν0 = 1 × 10−15. This stated uncertainty includes a correction of a frequency bias of δν/ν0 = 8 × 10−16 ± 3 × 10−16 attributed by the authors to microwave leakage. We believe that the stat...

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