The simplest water diversion method in irrigation systems is using intakes. Measuring the mean velocity is one of the essential hydraulic parameters in increasing the efficiency of the intake. In this study, the mean velocity was predicted for different width ratios of an intake using ANN-MLP neural network model. In order to do that, the flow field within a 90-degree intake was first simulated...

Several effective methods have been developed recently to demonstrate simultaneous high energy and power density in Lithium - carbon fluoride (Li-CFx) batteries. These can achieve as a 1000 Wh/kg at 60–70 kW/kg (40–50 C rate) coin cells 750 12.5 (20 pouch cells. This performance is made possible by an ingenious nano-architecture design, controlled porosity, boron doping, electrolyte additives. ...

Lithium-fluorinated carbon (Li-CFx) batteries have become one of the most widely applied power sources for high energy density applications because advantages provided by CFx cathode. Moreover, large gap between practical and theoretical potentials alongside stoichiometric limit commercial graphite fluorides indicates potential further improvement. Herein, monolayer fluorinated graphene nanorib...

Nanosphere lithography (NSL) masks were created by spin-coating of polystyrene particles onto silicon surfaces. Fluorinated hydrocarbon films were coated on the nanosphere lithography masks using plasma-enhanced chemical vapor deposition (PECVD) to obtain ordered arrays of fluorinated hydrocarbon. Atomic force microscope images show hexagonally ordered nanodots of dimension 225 ± 11 nm with a h...

This paper considers the problem of predicting the technical and operating characteristics of the propulsion system of a microsatellite created by microelectronic technology. The coupled thermomechanical problem of hydrodynamics has been solved by the ANSYS CFX package. The microengine design has been optimized, the heating of its case in the operating time of the fuel chamber has been analyzed...

Water impact phenomenon of general bow section is a critical event for planning hulls. In this paper, the water entry of several arbitrary bow sections is investigated. For this purpose, arbitrary bow shapes which are introduced by Lewis form approximation are considered. In order to obtain pressure distribution and free surface profile, volume of fluid (VOF) method coupled with finite volume m...

Perhaps the most obvious myth is that graphics calculators are mainly useful for drawing graphs of functions and hence are not relevant to most mathematics curricula. An hour or two with a modern graphics calculator will quickly dispel this myth. For example, my book, More mathematics with a graphics calculator: Casio cfx-9850G, contains sixteen chapters, only four of which are primarily concer...

Three different test cases involving free surface flows with surface tension were investigated with ANSYS CFX. Transient analyses were performed in all cases. The three cases were: (1) oscillations of a twodimensional cylindrical rod; (2) rise of liquid in a capillary; and (3) rise of an air bubble train through stagnant water. The mesh resolution, timestep, and solver settings required to obta...