Results 71 to 80 of about 22,234 (267)
Solar activity explored with new wavelet methods [PDF]
Annales Geophysicae, 2005 In order to improve the forecasts of the impact of solar activity on the terrestrial environment on time scales longer than days, improved understanding and forecasts of the solar activity are needed.
H. Lundstedt, L. Liszka, R. Lundin
doaj +1 more source
Modeling the Sunspot Number Distribution with a Fokker-Planck Equation
, 2011 Sunspot numbers exhibit large short-timescale (daily-monthly) variation in addition to longer timescale variation due to solar cycles. A formal statistical framework is presented for estimating and forecasting randomness in sunspot numbers on top of ...
Noble, Patrick, Wheatland, Mike
core +1 more source
Major Cybersecurity Breaches: Shaping Corporate Cybersecurity Policies and Closing the Gaps
Journal of Corporate Accounting &Finance, EarlyView.ABSTRACT As digitalization accelerates, cybercrime has intensified in both scale and impact over the past two decades. This study aims to critically examine major cybersecurity events, assess them through the lens of routine activity theory, examine insight from three other established criminological and organizational theories, and address central ...
Laura K. Rickett, Deborah Smith
wiley +1 more source
Automatic Recognition of Sunspots in HSOS Full-Disk Solar Images
, 2016 A procedure is introduced to recognise sunspots automatically in solar full-disk photosphere images obtained from Huairou Solar Observing Station, National Astronomical Observatories of China. The images are first pre-processed through Gaussian algorithm.
Deng, YuanYong +3 more
core +1 more source
International Journal of Climatology, EarlyView.Over the past 60 years, noticeable changes have been observed in the main hydroclimatological variables, driven by both natural and anthropogenic factors. In the context of climate change, such behaviour may adversely affect the state's economic activities, as well as increase the recurrence of extreme events in the region.
Ronaldo Guilherme Santos Lima +4 more
wiley +1 more source
Forecasting long-term sunspot numbers using the LSTM-WGAN model
Frontiers in Astronomy and Space SciencesThe sunspot number, an indicator of solar activity, is vital for forecasting variations in solar activity and predicting disturbances of the geomagnetic field.
Hao Yang +9 more
doaj +1 more source
Does Building a Relative Sunspot Number Make Sense? A Qualified 'Yes' [PDF]
, 2015 Recent research has demonstrated that the number of sunspots per group ('active region') has been decreasing over the last two or three solar cycles and that the classical Relative Sunspot Number (SSN) no longer is a good representation of solar magnetic
Svalgaard, Leif
core
Sunspot Number Second Differences as a Precursor of the Following 11-year Sunspot Cycle [PDF]
The Astrophysical Journal, 2017 Abstract Forecasting the strength of the sunspot cycle is highly important for many space weather applications. Our previous studies have shown the importance of sunspot number variability in the declining phase of the current 11-year sunspot cycle to predict the strength of the next cycle when the minimum of the current cycle has been ...
Tatiana Podladchikova +2 more
openaire +2 more sources
Outcomes of Direct Vocal Fold Testosterone Injections in Hormone‐Naïve Adults: A Case Series
Otolaryngology–Head and Neck Surgery, EarlyView.Abstract Two nonbinary testosterone‐naïve individuals were seen at the Northwestern Memorial Hospital Voice Clinic. The objective was to determine the effectiveness of direct testosterone injections to the vocal folds for voice masculinization in testosterone‐naïve individuals.
Mariah E. Morton‐Jones +5 more
wiley +1 more source
Frequency of Solar Spotless Days and Flare Index as Indices of Solar Cycle Activity [PDF]
Journal of Astronomy and Space Sciences, 2014 There was a research on the prolongation of solar cycle 23 by the solar cyclic variation of solar, interplanetary geomagnetic parameters by Oh & Kim (2013).
Suyeon Oh
doaj +1 more source