This paper describes the use of an evolutionary algorithm to solve an engineering design problem. The problem involves determining the geometry and operating settings for a crusher in a comminution circuit for ore processing. The intention is to provide a tool for consulting engineers that can be used to explore candidate designs for various scenarios. The algorithm has proved capable of derivi...

2 Research method Different methods of coal processing into fuel [1, 6, 12] usually require its intensive comminution. Such situation needs the creation of new technologies for coal micronization [4, 11, 17] that enlarge specific surface of coal micro particles what finally intensifies burning process of such coal dust. Some interesting effects of water-coal mixture ensure waterjetting technolo...

Microwave heating stands as a strong candidate for selective liberation of multiphase materials like concrete. It takes advantage of the differences in thermal, dielectric and mechanical properties of each of the components to create stress gradients that can lead to grain boundary fracture and embrittlement. The work and results reported are concerned with selective liberation of concrete’s ra...

BACKGROUND AND PURPOSE Histotripsy is a pulsed focused ultrasound technology in which initiation and control of acoustic cavitation allow for precise mechanical fractionation of tissues. The present study examines the feasibility of using histotripsy for erosion of urinary calculi. MATERIALS AND METHODS Histotripsy treatment was delivered from a 750-kHz transducer in the form of 5-cycle acous...

PURPOSE To describe a variant of intertrochanteric fracture not well-characterised in the existing classification systems. METHODS 10 women and 2 men aged 59 to 98 (median, 80) years with intertrochanteric fractures characterised by a low intertrochanteric fracture, a basicervical fracture fragment, and a thin or fractured lateral wall with greater trochanteric comminution were reviewed. RE...

This study presents a practical approach used to find the best location for installing new stone crusher machine and landfill (waste) in Sarcheshmeh copper in-pit mine located southeast of Iran. Fuzzy analytical hierarchal process (FAHP) technique order preference by similarity ideal solution (TOPSIS) are two methods, which applied as part multi-criteria decision making (MCDM) analysis. In firs...