background and aim: although nuchal cord is a common occurrence at birth, there is little attention to its importance or management at birth, and teaching includes premature clamping and cutting of the cord as the common option.  although grade 1 evidence is lacking, the optimal management of the nuchal cord,  the somersault manoeuvre  is not taught or included in any current guidelines. what e...

A new approach based on vector field clustering for tool path optimization of 5-axis CNC machining is presented in this paper. The strategy of the approach is to produce an efficient tool path with respect to the optimal cutting direction vector field. The optimal cutting direction maximizes the machining strip width. We use the normalized cut clustering technique to partition the vector field ...

Taguchi's design of experiment is utilized to optimize the process parameters in turning operation with dry environment. Three parameters, cutting speed (v), feed (f), and depth of cut (d), with three different levels are taken for the responses like material removal rate (MRR) and surface roughness (R a ). The machining is conducted with Taguchi L9 orthogonal array, and based on the S/N analys...

In a course in elementary statistics for psychology students using criterion-referenced achievement tests, the total test score, based on dichotomously scored items, was used for classifying students into those who passed and those who failed. The score on a test is considered as depending on a latent variable; it is assumed that the students can be dichotomized into the categories “mastery” (w...

The cutting sequence in the optimization of multipass turning operations has not gained much attention in many previous studies. The objective of this paper is to present a novel method to determine the optimal sequence of cutting passes and machining parameters in turning operations with practical constraints. The optimization problem of minimizing the total production cost is solved in two ph...

One of the main issues in the glass industry is the minimization of the trim loss generated when cutting large parts (stocks) into small items. In our application stocks are produced in the plant. Many distinct stock sizes are feasible, and technical constraints limit the variety of cutting patterns to those producing a single type of item per stock. Consequently, the focus is not on seeking an...

The optimal cutting of lumber into dimension parts for products like furniture, windows, and mouldings is a challenging problem due to the almost infinite number of possible cutting patterns. Yet, finding the optimal pattern that utilizes the available lumber most efficiently is of paramount importance, as lumber costs are a major expense of producers of solid wood parts. This study used data d...