## Search

Now showing items 21-30 of 34

#### Hard turning with variable micro-geometry PcBN tools

(Elsevier, 2008)

This paper presents investigations on hard turning with variable edge design PcBN inserts. Turning of hardened AISI 4340 steel with uniform and variable edge design PcBN inserts is conducted, forces and tool wear are ...

#### Scheduling in robotic cells: process flexibility and cell layout

(Taylor & Francis, 2008)

The focus of this study is the identical parts robotic cell scheduling problem with m machines under the assumption of process and operational flexibility. A direct consequence of this assumption is a new robot move cycle ...

#### Identification and elimination of interior points for the minimum enclosing ball problem

(Society for Industrial and Applied Mathematics, 2008)

Given A := {a1,...,am} C ℝn, we consider the problem of reducing the input set for the computation of the minimum enclosing ball of A. In this note, given an approximate solution to the minimum enclosing ball problem, we ...

#### Two algorithms for the minimum enclosing ball problem

(Society for Industrial and Applied Mathematics, 2008)

Given A := {a1.....am} ⊂ ℝn and ε > 0, we propose and analyze two algorithms for the problem of computing a (1 + ε)-approximation to the radius of the minimum enclosing ball of A. The first algorithm is closely related ...

#### Variance reduction techniques: experimental comparison and analysis for single systems

(Taylor & Francis, 2008)

We provide a thorough analysis of the effectiveness of different Variance Reduction Techniques (VRTs). We consider both stand-alone and combined applications of two input techniques, Antithetic Variates (AV) and Latin ...

#### Linear inequalities among graph invariants: using graPHedron to uncover optimal relationships

(John Wiley & Sons, 2008)

Optimality of a linear inequality in finitely many graph invariants is defined through a geometric approach. For a fixed number of graph vertices, consider all the tuples of values taken by the invariants on a selected ...

#### Single CNC machine scheduling with controllable processing times and multiple due dates

(Taylor & Francis, 2008)

In this study, we solve the single CNC machine scheduling problem with controllable processing times. Our objective is to maximize the total profit that is composed of the revenue generated by the set of scheduled jobs ...

#### The US fashion industry: a supply chain review

(Elsevier, 2008)

The fashion industry has short product life cycles, tremendous product variety, volatile and unpredictable demand, and long and inflexible supply processes. These characteristics, a complex supply chain and wide availability ...

#### Backtracking and exchange of information: methods to enhance a beam search algorithm for assembly line scheduling

(Elsevier, 2008)

Beam search (BS) is used as a heuristic to solve various combinatorial optimization problems, ranging from scheduling to assembly line balancing. In this paper, we develop a backtracking and an exchange-of-information (EOI) ...

#### Implementation of warm-start strategies in interior-point methods for linear programming in fixed dimension

(Springer, 2008)

We implement several warm-start strategies in interior-point methods for linear programming (LP). We study the situation in which both the original LP instance and the perturbed one have exactly the same dimensions. We ...