Search results for " Programming"

A combined multi-criteria approach to support FMECA analyses: A real-world case

2018

[EN] The paper proposes an approach that combines reliability analyses and multi-criteria decision methods to optimize maintenance activities of complex systems. A failure mode, effects, and criticality analysts (FMECA) is initially performed and the fuzzy TOPSIS (FTOPSIS) method is then applied to rank previously identified failure modes. For prioritization, failure modes are assessed against three evaluation criteria that differ from those traditionally involved in risk priority number (RPN) computation (i.e. severity, occurrence and detection). Two criteria refer to the maintenance management reflecting the operational time taken by the maintenance activity performed after the occurrence…

WiSHFUL : enabling coordination solutions for managing heterogeneous wireless networks

2017

The paradigm shift toward the Internet of Things results in an increasing number of wireless applications being deployed. Since many of these applications contend for the same physical medium (i.e., the unlicensed ISM bands), there is a clear need for beyond-state-of-the-art solutions that coordinate medium access across heterogeneous wireless networks. Such solutions demand fine-grained control of each device and technology, which currently requires a substantial amount of effort given that the control APIs are different on each hardware platform, technology, and operating system. In this article an open architecture is proposed that overcomes this hurdle by providing unified programming i…

Improving operation of a complex headworks system for municipal use and hydropower production by mathematical programming

2013

The paper presents a Mixed Integer Non Linear Programming (MINLP) model of the water resources system supplying Genoa, in northern Italy. The system presently features five reservoirs, three main river intakes, and two well fields. The hydrological regime is typically Mediterranean; water availability is however relatively abundant, so that drought issues are limited, especially now that water demand from the supply sources has decreased due to reduced population, deindustrialization and to improvement in the operation and maintenance of the water distribution network. In this context, it is worthwhile considering the possibility to relax an over-conservative management of resources, justif…

Panel Discussion: Systems for Data Analysis What they AEE; what they Could be?

1985

CRANE: I’d like to pose a couple of questions: (1) Command Languages — A tool for the astronomer or for the programmer? (2) Portability — Holy Cow or Red Herring? I propose that we start with the first one and see how far we get. If we don’t get past that, fine. If we get on to the question of portability, this is also fine. Let me just open up the discussion by asking Rudi Albrecht to make a comment.

Conflict management in massive polylogues: A case study from YouTube

2014

Abstract The aim of this paper is to examine how conflict begins, unfolds and ends in a massive, new media polylogue, specifically, a YouTube polylogue. Extant research has looked into how conflict begins, unfolds and/or ends. However, to our knowledge, the models and taxonomies developed so far have not been applied to the analysis of the mediated conflict of massive polylogues. Drawing on the difference between methods of analysis that are natively digital versus those that have been digitized, i.e., they were developed for off-line research and then migrated on-line, one of the goals of this paper is to test whether non-natively digital, extant models and taxonomies, if digitized, would …

Optimum plastic design for multiple sets of loads

1974

We study optimum plastic design of structures made up, or conceived as assemblies of finite elements, each having an elemental piece-wise linear rigid-plastic behaviour. Since cost function linearly dependent on design variables are considered, optimization problems in linear programming are encountered. Allowance is made for design dependent mass forces, and for some technological constraints. The design growing process is studied in the case of various sets of alternative applied loads, and the optimality conditions are written in a proper geometrical form which leads to a generalization of the concept of Foulkes mechanism.

Design and Performance of a High Temperature Superconducting Axial Flux Generator

2013

In this paper, a high temperature axial flux (HTSAF) generator is presented. In this generator the excitation of the generator is obtained by using some high temperature superconducting magnets. In order to reduce the negative effects of vibrations, the excitation is located on the stationary part of the generator. Starting, running and endurance tests of the machine are presented.

Organization of Production Processes through the Multi-Service Method by Performing some Identical Operations of the same Duration and Structure

2013

Organisation of production processes, by means of multi service method refers to the performance of attributions within a working system, using simultaneously or successively more inputs or more items in a single means of production, by one or more employees. In the specifically chosen case, in order to outline the advantages that shall be obtained after implementing the multi service method, we want to illustrate a situation where there are the execution conditions of certain identical operations, with the same duration and structure, in which case the running time of the performer and the means of production will be identical. Serving multiple machines finds application in all industrial …

A Study on Effect of Physical Activity through Listening to Music on The Everyday Stress and Resilience of The Preschoolers Participating in a Full-d…

2013

New exact methods for the time-invariant berth allocation and quay crane assignment problem

2019

Abstract Efficient management of operations in seaport container terminals has become a critical issue, due to the increase in maritime traffic and the strong competition between ports. In this paper we focus on two seaside operational problems: the Berth Allocation Problem and the Quay Crane Assignment Problem, which are considered in an integrated way. For the continuous BACAP problem with time-invariant crane assignment we propose a new mixed integer linear model in which the vessels can be moored at any position on the quay, not requiring any quay discretization. The model is enhanced by adding several families of valid inequalities. The resulting model is able to solve instances with u…