The polycrystalline cubic boron nitride (PCBN) milling tool can be used in the mold industry to replace cemented carbide tools to improve machining efficiency and quality.It is necessary to study the tool wear and failure mechanism to increase machining efficiency and extend tool life.Cr12MoV is used to analyze the failure form of PCBN tools in the
Purpose: the purpose of the study is to analyze, identify and structure the main trends of technical and technological development of regions and corporations in the Russian North.Methods: to achieve the purpose, methods of factor and system analysis, general economic approaches are used.For the structuring of processes, the methodological tools of
One of the methods for water resources development to meet water supply requirements, is the use of treated urban wastewater.In this paper, the feasibility of use of refined urban wastewater of Sabzevar was evaluated.This study was implemented in Dorok desert land located Heel Sleeve in southwest of Sabzevar over three year( 2009- 2011).In order to
This research aims to make ultra high strength Reactive Powder Concrete Deodorant (RPC) with marble powder as one of the components.The use of marble powder can increase Calcium Silicate Hydrate (CSH) and the strength of RPC.The research method used to achieve the objectives is experimental and divided into two steps.The first step is the character
New places for the dead - cemeteries - were from the start understood as places of memory in which the undead and sleepless dead, ghosts and spirits did not abide.Anxieties about the public health problems of old burial grounds were born of a new interest Zin to separate the dead from the living; memory replaced the corpse as the placeholder for th