Heuristic model for production scheduling wide-strip rolling mill

The article deals with the methodology of creating the production schedule for wide-strip rolling mill, defining the rules, calculating types and number of campaigns, in the defined planning period, filling the campaigns, and campaigns sequence. In model creation is apply the heuristic approach, which is based on experiences of expert in production scheduling in metallurgy. On Induction thinking and analogy are defined heuristics rules. Other rules are defined with the regularities of technology, limitation and optimization criteria. Rules that we do not know resp. we do not want to be modeled we will continue to human expert

MODERNIZATION OF IRRIGATION SYSTEMS MANAGEMENT TO IMPROVE THEIR RELIABILITY

Results of many years of theoretical, operational and reclamation studies conducted in various climatic-economic conditions of the Republic of Uzbekistan are presented in the paper. Based on the research and experience data of developed countries, recommendations have been developed for modernizing the management of irrigation systems based on the cybernetic scheme model in order to increase the reliability coefficients of all parts of the system, as well as to increase the reliability coefficient and coefficient of performance (COP) of the Lower Syrdarya irrigation system

Heuristic model for production scheduling wide-strip rolling mill

The article deals with the methodology of creating the production schedule for wide-strip rolling mill, defining the rules, calculating types and number of campaigns, in the defined planning period, filling the campaigns, and campaigns sequence. In model creation is apply the heuristic approach, which is based on experiences of expert in production scheduling in metallurgy. On Induction thinking and analogy are defined heuristics rules. Other rules are defined with the regularities of technology, limitation and optimization criteria. Rules that we do not know resp. we do not want to be modeled we will continue to human expert

Independent Calibration of Radar Reflectivities Using Rasiosondes : Applications to ESRAD

A large number of empirical and theoretical studies haveshown that radar reflectivity from the atmosphere at 50MHz is proportional to the mean vertical gradient of therefractive index. Up to 30 km height the refractive indexis determined by temperature, pressure and humidityprofiles, which can readily be measured by radiosondes.In practice, humidity becomes unimportant abovethe mid-troposhere. The coefficient of proportionality betweenradar reflectivity and mean refractive index gradientshould, in principle, depend on the fine-scale structureof refractive index fluctuations. However, recent empiricalevidence shows that the coefficient varies very littlebetween widely different meteorological conditions andbetween radars in very different locations (Esrange, tropicalIndia, Antarctica). This means we can use meanprofiles of refractive index, measured by radiosondes, asan independent method to provide continuous calibrationof radar reflectivity and to cross-calibrate between differentradars without the need to interrupt operations for thekind of engineering tests which are usually used for calibration.We show how this can be applied for long-termcalibration of the 52 MHz atmospheric radar at Esrange,ESRAD.The observed invariability of the coefficient of proportionalityalso poses an intriguing question as to how it canbe explained. High-resolution sondes, constant-heightsondes, and UAV’s are suggested as suitable platformsfor further study of the radar scattering mechanisms.Upprättat; 2011; 20160622 (andbra