In the metal forming process, a realistic frictional coefficient must be specified at the die/work piece interface. Several methods are developed to evaluate friction coefficient in large deformation processes. This paper presents the concept of friction calibration map to determine different frictional conditions between interfaces of die and billet in the upsetting process. One such map is ge...

A new method to extract map elements from color cartographic maps was developed. The proposed method is divided into three major sections: pre-processing, crude color segmentation, and extraction of map elements using their shapes. The whole segmenting process was done in the HSV color coordinates[l] instead of the RGB color coordinates. The preprocessing transforms the inputted RGB image into ...

Markovian service process (MSP) is a model similar to the Markovian arrival process (MAP), where arrivals are replaced with service completions. The MSP can represent various queueing models such as vacation models, N -policy models and exceptional service models. We analyze MAP/MSP/1 queues and obtain a new sort of matrix-type factorization of the vector generating function for the stationary ...

The paper presents advantages of contextual cartography (or adaptive cartography) for the Digital Earth vision. Theoretical background connecting Digital Earth and contextual cartographic visualization is followed by practical example from an environment where the time is crucial: Crisis management. The example includes configuration process of Contextual Web Map Service (CWMS) called Sissi tha...

Consider a 2-stage single-server tandem queue with a MAP to the first stage and the exponential service times. Using the DREB scheme, we formulate the joint queue length process into a single-dimensional level-dependent quasi-birth-death (LDQBD) process with expanding blocks. This allows us to show that the departure process from stage 1 is a MAP with infinite phases or IMAP and that the depart...

let ? be an open connected subset of the complex plane c and let t be a bounded linear operator on a hilbert space h. for ? in ? let e the orthogonal projection onto the null-space of t-?i . we discuss the necessary and sufficient conditions for the map ?? to b e continuous on ?. a generalized gram- schmidt process is also given.

Objective Using Failure Mode and Effects Analysis (FMEA) as an example quality improvement approach, our objective was to evaluate whether secondary use of orders, forms, and notes recorded by the electronic health record (EHR) during daily practice can enhance the accuracy of process maps used to guide improvement. We examined discrepancies between expected and observed activities and individu...

this paper reports a survey and case study research outcomes on the application of data envelopment analysis (dea) to the ranking method of european foundation for quality management (efqm) business excellence model in iran’s automotive industry and improving benchmarking process after assessment. following the global trend, the iranian industry leaders have introduced the efqm practice to thei...