Sawing by circular saw blades is predominant in the mechanized treatment of natural stone. The predictive sawing force crucial for optimizing, controlling, and monitoring process. In this work, a novel model predicting force, which based on distribution undeformed chip thickness at contact arc, was proposed. Based analysis geometry blade, segment surface divided into front end rear according to...

The choice of geometrical shape of the blades has a considerable effect on aerodynamic performance and flow characteristics in axial compressors. In this paper, the effects of the blades shape on the aerodynamic design characteristics are investigated based on Streamline Curvature Method (SCM). Initially, the Streamline Curvature Method (SCM) is used for designing a two-stage axial compressor. ...

This paper describes the feasibility analysis of an innovative, extensible blade technology. The blade aims to significantly improve the energy production of a wind turbine, particularly at locations with unfavorable wind conditions. The innovative ‘smart’ blade will be extended at low wind speed to harvest more wind energy; on the other hand, it will be retracted to its original shape when the...

The introduction of blade servers for diverse applications is expanding rapidly. The switch blade—a key network component of the blade server—must provide high performance to accommodate growing data-communication demands generated by network consolidation as in Fibre Channel over Ethernet (FCoE), have a compact, low-power-consumption design, and have switch control software optimized for blade...

Dans un article récent [1], Abderezak Ould Houcine montre qu’un groupe superstable résiduellement C pour une pseudo-variété C admet une série normale définissable G = G0⊲G1⊲· · ·⊲Gn telle que Gi/Gi+1 ∈ C pour i < n, et Gn est résoluble ; si G est ω-stable, on peut choisir Gn nilpotent. Nous étendons son résultat aux groupes supersimples, et montrons en même temps qu’on peut toujours prendre Gn ...

In this paper, the sensitivity of the structural integrity of wind turbine blades to debonding of the shear web from the spar cap was investigated. In this regard, modal analysis, static and fatigue testing were performed on a 45.7 m blade for three states of the blade: (i) as received blade (ii) when a crack of 200 mm was introduced between the web and the spar cap and (iii) when the crack was...

Abstract This paper presents the results of an experimental study two closely spaced vortices generated by a rotating blade with modified tip geometry. The experiments are carried out in water channel facilities and involve generic one-bladed rotor operating regime near hover. It is equipped parametric fin placed perpendicular to pressure surface tip, which generates co-rotating vortex pair hav...

Introductions to Philosophy There are many good introductions to philosophy: [22], [53] and [1] have the advantage of being short and cheap. There are a few books [44, 11, 34] that introduce philosophical ideas by analysing films which raise philosophical issues. One of the advantages of these books is that they allow you to say that you are doing valuable research for this module while watchin...