A classical example of chatter prone machining is the boring operation. Turning under conditions with high vibrations in the cutting tool deteriorates the surface finish and may cause tool breakage. Severe noise is also a consequence of the high vibration levels in the boring bar. Active control is one possible solution to the noise and vibration problem in boring operations. In boring operatio...

A serious fire game with two different scenarios for the search and rescue (SAR) operation was designed and played. In the first scenario, the SAR operation was performed without any smartphone app assistance, while in the second scenario, our recently developed smartphone app was employed to carry out the evacuation. In this paper, the effects of utilizing this app on organizing firefighting t...

In this research paper, E 250 B0 as per IS: 2062 steel material are turned on computer numeric controlled (CNC) turning center by using Chemical Vapor Deposition (CVD) coated cemented carbide inserts of 0.8 mm and 1.2 mm. This paper discusses an investigation of effect of process parameters (speed, feed, depth of cut & nose radius) on responding quality parameter (boring operation). This study ...

Nowadays, fatigue life of engineering components is a major topic. In the literature, extensive works have been reported in order to assess machining-induced surface integrity which known be first-order parameter for resistance. This paper lies framework turning-induced residual stress prediction by presenting an up-dated method based on two-scale approach. Previous aimed at building 3D hybrid ...

For the purpose to facilitate development of high-speed Spindle Units (SUs) running on rolling bearings, we have developed a beam element model, algorithms, and software for computer analysis of thermal characteristics of SUs. The thermal model incorporates a model of heat generation in rolling bearings, a model of heat transfer from bearings, and models for estimation of temperature and temper...

We have treated 1 1 patients aged three days to 15 years with bladder exstrophy by horizontal osteotomies of the innominate bones. The operation was originally used for older patients with severe deformity or failed previous surgery but is now applied as a primary procedure in the first week of life. The osteotomies enable the complex malformations to be corrected in a single operation without ...

Most RFID applications in the Internet of Things (IoTs) use multiple readers to read the IDs of multiple tags and form the RFID network. In such a network, unguarded reader deployment may generate over-crowded readers, cause interferences and, as a result, increases the deployment cost while degrading tag detection. Seeing that desirable reader deployment is crucial for RFID system performance,...

An exact approach is developed to determine the optimum machining conditions and tool allocation decisions simultaneously to minimize the total production cost on a CNC turning machine. There are multiple machining operations and we consider a set of alternative cutting tool types for each operation. The existing tool management approaches at the system level fail to relate the tooling issues t...

The paper deals with the problem of proper selection of tools and cutting parameters for a given task in external turning on the basis of catalogue recommendation. The described method takes into account, in its algorithms, various factors influencing machining operation like an actual machine tool and properties of workpiece material. The architecture of the CAPP system including a module for ...

From a carrier perspective, the possibility of turning a permanent connection (PC) into a soft permanent connection (SPC) and vice versa, without actually affecting data plane traffic being carried over it, is a valuable option. In other terms, such operation can be seen as a way of transferring the ownership and control of an existing and in-use data plane connection between the management pla...