To Pop Vinyl meet the requirements of TSI (Technical Specification for Interoperability)to freight electric locomotive, design of integral bearing and lightweight structure was adopted, and the structure of underframe and other components was optimized.The strength and crashworthiness were simulated by FEA software.Static load test for vehicle body
Photography at the Polish auction market
The article analyses the state of the photography auction market in Poland on the basis of the sales in the period from the first photography auction (1996) until Warning Chime Speaker the end of 2011.The data allow the reader to discover the scale of this market (turnover, number of items sold), characteristics of purchased objects (price records,