Формирование экстремальных волн на мелкой воде с учетом обрушения
Results of the analysis of long time series of sea level for June - September, 2009 near the Aniva cape (Sakhalin), recorded by pressure bottom station placed on depth of 12 m are given. There are 394 abnormal big waves, waves satisfying to freak wave amplitude criterion (the wave height exceeds the significant height more then twice) recorded. The amplification during six events exceeds 2.5 times. The cumulative frequency of the abnormal wave appearance is described by the Poisson distribution as follows from the theory of extreme statistics. Freak waves occurred on the average twice a day which is in good comparison with the Raleigh prediction for narrow-band Gaussian wave field.
Standing surface waves in a viscous infinite-depth fluid are studied. The solution of the problem is obtained in the linear and quadratic approximations. The case of long, as compared with the boundary layer thickness, waves is analyzed in detail. The trajectories of fluid particles are determined and an expression for the vorticity is derived.
This volume presents new results in the study and optimization of information transmission models in telecommunication networks using different approaches, mainly based on theiries of queueing systems and queueing networks .
The paper provides a number of proposed draft operational guidelines for technology measurement and includes a number of tentative technology definitions to be used for statistical purposes, principles for identification and classification of potentially growing technology areas, suggestions on the survey strategies and indicators. These are the key components of an internationally harmonized framework for collecting and interpreting technology data that would need to be further developed through a broader consultation process. A summary of definitions of technology already available in OECD manuals and the stocktaking results are provided in the Annex section.