BackgroundThere are various experimental measurement techniques used to measure residual stress and this work describes one such method, the slotting its application near surface stresses.ObjectiveThis examines macro-scale specimens.MethodsA series of numerical experiments were performed understand size required assume that specimen is infinitely large, namely thickness, width, height. To asses...

Abstract Attended home delivery requires offering narrow time slots for online booking. Given a fixed fleet of vehicles and uncertainty about the value potential future customers, retailers have to decide offered each individual order. To this end, dynamic slotting techniques compare reward from accepting an order opportunity cost not reserving required capacity later orders. However, exactly c...

With the end of the Supermarket Revolution in the 1970s, new forms of horizontal, vertical, and geographic competition have appeared to chaflenge the supremacy of the supermarket format. New retail formats like warehouse stores, supercenters, and fast-food outlets appear to affect local retail supermarket prices. Slotting allowances, coupons, and electronic data gathering have intensified retai...

We describe an important class of problems that arise in the economic design of \survivable" networks. Such networks are capable of accommodating all of the tra c between pairs of locations, even if some arbitrary link or node in the network is rendered unusable. Cycles play an important role in the design of survivable networks because they represent two-connected subnetworks of minimal size. ...

The design of a hybrid stepper motor for achieving a specific performance necessitates the choice of appropriate tooth geometry. In this paper, a detailed account of the results of twodimensional and three-dimensional finite-element (FE) analyses, conducted with different tooth width/tooth pitch ratios (t/X) and also with various tooth/slot shapes such as rectangular, trapezoidal, triangular, a...

Mining in deep coal seams is characterized by high ground stress, often accompanied and rock dynamic disasters such as bursts. High-pressure water jet slotting technology can relieve pressure reduce the stress concentration on seam, which one of effective relief measures burst for mining. Reasonable parameters are an important influence effectiveness achieved a high-pressure jet. This paper use...

The subject of this research is the sensorless control method verification an asynchronous motor by a simulation in area low speed (up to 5 Hz) via high-frequency analog signal injection method. implementation continuous simpler when compared with discrete injection; however, has more advantages processing. injected will be superimposed on main stator voltage. response manifested mainly based a...

Coal seam permeability is one of the key factors influencing gas extraction efficiency, which great significance to reduce coal and dynamic disasters in gassy mines. Hydraulic slotting technique an effective method stimulate reservoir, but selection parameters has impact on efficiency. For this reason, hydraulic model was established by using FLAC3D software analyze stress distribution before a...