Results 71 to 80 of about 2,960 (140)

The Evolution of Sunspot Magnetic Fields Associated with a Solar Flare

open access: yes, 2011
Solar flares occur due to the sudden release of energy stored in active-region magnetic fields. To date, the pre-cursors to flaring are still not fully understood, although there is evidence that flaring is related to changes in the topology or ...
A. Canou   +53 more
core   +1 more source

Temporal and Structural Properties of Sunspot Small Short-living Group and Large Long-living Group Populations

open access: yesThe Astrophysical Journal
We investigate the properties of two types of solar active regions: the small short-living groups (SSGs) and the large long-living groups (LLGs). The combined distribution of areas of active regions is bimodal. When deconvolved, the distributions of each
Yury A. Nagovitsyn   +2 more
doaj   +1 more source

Identification of digital device hardware vulnerabilities based on scanning systems and semi-natural modeling

open access: yesРоссийский технологический журнал
Objectives. The development of computer technology and information systems requires the consideration of issues of their security, various methods for detecting hardware vulnerabilities of digital device components, as well as protection against ...
E. F. Pevtsov   +3 more
doaj   +1 more source

Severe Hypofunction of Allogeneic Hematopoietic Stem Cell Transplant in Patients with Oncohematological Diseases: Incidence, Risk Factors, and Outcomes

open access: yesКлиническая онкогематология, 2019
Aim. Based on strict criteria, to assess incidence, pretransplantation risk factors, and outcomes of severe hypofunction of graft, i.e. poor graft function (sPGF), following allogeneic hematopoietic stem cell transplantation (allo-HSCT) in adults ...
Tat’yana Aleksandrovna Rudakova   +15 more
doaj   +1 more source

METHODOLOGY FOR VERIFYING THE CHIP AUTHENTICITY BASED ON DYNAMIC ENERGY CONSUMPTION ANALYSIS

open access: yesБезопасность информационных технологий
In the conditions of restructuring and complication of logistic supply chains of EKB (Electronic Component Base) the risk of supplying counterfeit products increases significantly, which determines the relevance of the development of simple and cost ...
Vladislav A. Rogachev   +3 more
doaj   +1 more source

Observational Evidence for Coronal Twisted Flux Rope

open access: yes, 2008
Multi-instrument data sets of NOAA AR10938 on Jan. 16, 2007, (e.g., {\emph{Hinode}}, {\it{STEREO}}, {\it{GOES}}, {\it{MLSO}} and {\it{ISOON}} H$\alpha$) are utilized to study the fine structure and evolution of a magnetic loop system exhibiting multiple ...
Amari   +13 more
core   +1 more source

Current Helicity and Twist as Two Indicators of The Mirror Asymmetry of solar Magnetic Fields

open access: yes, 2008
A comparison between the two tracers of magnetic field mirror asymmetry in solar active regions, twist and current helicity, is presented. It is shown that for individual active regions these tracers do not possess visible similarity while averaging by ...
A.A. Pevtsov   +31 more
core   +1 more source

Butterfly Diagram and Carrington Maps for Century-Long Ca II K Spectroheliograms from Kodaikanal Observatory

open access: yes, 2016
The century-long (1907-2007) Ca II K spectroheliograms from Kodaikanal Solar Observatory (KSO) are calibrated, processed and analysed in the present study to follow the evolution of bright on disc structures called plages, the possible representatives of
Banerjee, Dipankar   +2 more
core   +1 more source

Relating near-Earth observations of an interplanetary coronal mass ejection to the conditions at its site of origin in the solar corona [PDF]

open access: yes, 2005
A halo coronal mass ejection (CME) was detected on January 20, 2004. We use solar remote sensing data (SOHO, Culgoora) and near-Earth in situ data (Cluster) to identify the CME source event and show that it was a long duration flare in which a magnetic ...
Balogh, A   +9 more
core  

Empirical Modeling of Radiative versus Magnetic Flux for the Sun-as-a-Star

open access: yes, 2010
We study the relationship between full-disk solar radiative flux at different wavelengths and average solar photospheric magnetic-flux density, using daily measurements from the Kitt Peak magnetograph and other instruments extending over one or more ...
Chapman, Gary   +3 more
core   +1 more source

Home - About - Disclaimer - Privacy