Tag: 2021苏州夜生活


first_imgWe applied Ensemble Empirical Mode Decomposition (EEMD) for the first time to ionosonde data to study trends in the critical frequency of the F2 peak, foF2, and its height, hmF2, from 1959 to 2005. EEMD decomposes a time series into several quasi-cyclical components, called Intrinsic Mode Functions (IMFs), and a residual, which can be interpreted as a long-term trend. In contrast to the more commonly used linear regression-based trend analysis, EEMD makes no assumptions on the functional form of the trend and no separate correction for the influence of solar activity variations is needed. We also adopted a more rigorous significance testing procedure with less restrictive underlying assumptions than the F-test, which is normally used as part of a linear regression-based trend analysis. EEMD analysis shows that trends in hmF2 and foF2 between 1959 and 2005 are mostly highly linear, but the F-test tends to overestimate the significance of trends in hmF2 and foF2 in 30% and 25% of cases, respectively. EEMD-based trends are consistently more negative than linear regression-based trends, by 30-35% for hmF2 and about 50% for foF2. This may be due to the different treatment of the influence of a long-term decrease in solar activity from 1959 to 2005. We estimate the effect of this decrease in solar activity with two different data-based methods as well as using numerical model simulations. While these estimates vary, all three methods demonstrate a larger relative influence of the Sun on trends in foF2 than on trends in hmF2.last_img read more


first_imgFor fans of Lettuce, you can catch them at the 2nd annual Fool’s Paradise March 31 & April 1, 2017 in St. Augustine, FL alongside Joe Russo’s Almost Dead, The Floozies, The Motet, a special Manic Science set featuring Manic Focus and Break Science, The Main Squeeze, Organ Freeman, along with Oteil Burbridge and Antwaun Stanley as Artists at Large. The guys will also be leading several artist excursions, like sailing, mini-golf, and even a ping pong tournament to raise money for charity! Head here for more information.,For fans of Lettuce, you can catch them at the 2nd annual Fool’s Paradise March 31 & April 1, 2017 in St. Augustine, FL alongside Joe Russo’s Almost Dead, The Floozies, The Motet, a special Manic Science set featuring Manic Focus and Break Science, The Main Squeeze, Organ Freeman, along with Oteil Burbridge and Antwaun Stanley as Artists at Large. The guys will also be leading several artist excursions, like sailing, mini-golf, and even a ping pong tournament to raise money for charity! Head here for more information. Jam Cruise has finally shared the first of their new weekly video series from TourGigs to celebrate the success of their 15th installment at sea. To properly kick the party off, the fist video is from Lettuce‘s pool deck performance from the ship, performing “Last Suppit.” When Adam Deitch (drums), Jesus Coomes (bass), Adam “Shmeeans” Smirnoff (guitar), Neal Evans (keys), Nigel Hall (keys, vocals) and The Shady Horns’ saxophonist Ryan Zoidis and trumpeter Eric “Benny” Bloom are on the same stage, great, firing things happen – such as been the case for the last 25 years!Regular suspects on Jam Cruise, the New York funk lords played two sets on the boat as Lettuce – with the pool deck as their second performance on the fourth night. Performing “Last Suppit,” enjoy the future funk pioneers in their wave-shifting set at sea in the video below:last_img read more

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