The purpose of this article is to describe three recent structure theorems in the theory of several complex variables and to point out a few of the many applications of these three theorems. In the first section we discuss a characterization of those currents (defined on an open subset of C) which correspond to integration over complex subvarieties. The second section is concerned with the stru...

.................................................................................................... 1 1.0 Introduction .............................................................................................. 2 2.0 Methods ..................................................................................................... 3 2.1 Cockburn Sound fishing trials .................................

This work explores the performance of different silicon retainer ring designs when integrated into silicon micro-turbines (SMTs) incorporating thrust style bearings supported on 500 μm diameter steel balls. Experimental performance curves are presented for SMTs with rotor diameters of 5 mm and 10 mm, each with five different retainer designs varying in mechanical rigidity, ball pocket shape and...

In present investigation, we have prepared a nanocomposites of highly porous MnO2 spongy balls and multi-walled carbon nanotubes (MWCNTs) in thin film form and tested in novel redox-active electrolyte (K3[Fe(CN)6] doped aqueous Na2SO4) for supercapacitor application. Briefly, MWCNTs were deposited on stainless steel substrate by "dip and dry" method followed by electrodeposition of MnO2 spongy ...

The equations governing the motion of steel balls and their impact onto shell liners in industrial Semi-Autogenous Grinding (SAG) mills are derived in full details by the authors and are used in order to determine the effective design variables for optimizing the working conditions of the mill and to avoid severe impacts which lead to the breakage of SAG mill shell liners. These design vari...

Abstract Oil-impregnated porous polyimide (iPPI) materials are usually used as retainer for bearings. In these bearings, balls and rings, retainers two different kinds of contact. this paper, the friction wear properties iPPI were investigated using steel (disc)—steel (ball)—iPPI (pin) double-contact test rig simulating actual contact in The results show that compared with iPPI—steel single con...