Search results for "Operations"
showing 10 items of 1692 documents
Sustainable European fishery and the Friend of the Sea scheme: tools to achieve sustainable development in the fishery sector
2015
This paper investigates the role of the Friend of the Sea (FOS) scheme as a market tool for sustainable competitive advantage. To capture this effect, we apply a theoretical framework based on the stakeholder theory (SHT) and the natural-resource-based view (NRBV) to two case studies each in Italy and Spain. Our model allows us to explain the main factors determining an effective and competitive sustainable business model in the fishery sector. The results confirm the relevant influence of market forces in acquiring FOS certification and the role of the same as a counterpart to state authority.
Human Factor and LEAN Analysis at Industrial Manufacturing Plants
2018
The aim of the research was to find out effective identification and prevention of ergonomics problems in industrial metal processing manufacturing plant, based on human factor workload analysis and LEAN failure mode and effect analysis. Creation of safe, effective work places, emphasizing human oriented approach and implementing ergonomics in business process management is one of the main conditions for sustainable development of an enterprise. For the research were chosen packaging, assembling and quality control manufacturing plant operations due to main complaints from workers about physical overload, intensive work pace and task complexity. Human factor analysis provides holistic under…
Editorial: Special issue on Simulation in Transportation
2020
Transportation systems and related policies are complex and cross-sectoral, covering different socio-economic and management aspects, and involving multiple stakeholders (such as users, operators, and public policymakers). Mobility and accessibility are central to economic and societal well-being, yet the process of doing so may have significant impacts on land use, environment, and public health. Furthermore, the many feedbacks involved occur at varying degrees of spatial, temporal, and socio-demographic granularity and levels of uncertainty. Simulation models are well established in transportation-related operational research and management science, and the alternative approaches of Syste…
Using Machine Learning to Characterize Atrial Fibrotic Substrate From Intracardiac Signals With a Hybrid in silico and in vivo Dataset
2021
[EN] In patients with atrial fibrillation, intracardiac electrogram signal amplitude is known to decrease with increased structural tissue remodeling, referred to as fibrosis. In addition to the isolation of the pulmonary veins, fibrotic sites are considered a suitable target for catheter ablation. However, it remains an open challenge to find fibrotic areas and to differentiate their density and transmurality. This study aims to identify the volume fraction and transmurality of fibrosis in the atrial substrate. Simulated cardiac electrograms, combined with a generalized model of clinical noise, reproduce clinically measured signals. Our hybrid dataset approach combines in silico and clinic…
Enabling quantum non-Markovian dynamics by injection of classical colored noise
2017
The non-Markovian nature of quantum systems recently turned to be a key subject for investigations on open quantum system dynamics. Many studies, from its theoretical grounding to its usefulness as a resource for quantum information processing and experimental demonstrations, have been reported in the literature. Typically, in these studies, a structured reservoir is required to make non-Markovian dynamics emerge. Here, we investigate the dynamics of a qubit interacting with a bosonic bath and under the injection of a classical stochastic colored noise. A canonical Lindblad-like master equation for the system is derived by using the stochastic wave function formalism. Then, the non-Markovia…
Rhizomatic Target Audiences of the Cyber Domain
2016
Target Audience Analysis (TAA) is a process of finding suitable target audiences for psychological operations (PSYOPS). Typically, a TAA is a one-way process with some kind of a feedback system. The cyber domain presents a challenge to this type of sequential, linear process by refusing to stay still while the process is being executed, possibly leading to results from yesterday’s data in an environment that no longer exists today. Another challenge is that identifiable human beings—the traditional targets of PSYOPS—are not the only inhabitants of the cyber domain. Physical devices, nicknames, IP addresses, networks, and a vast amount of data populate this environment, in which there are no…
Mainz Rolling Brains
2000
Our agent team is the result of a development which had to take place under tight time limitations. The total development time available was slightly less than three months where over most of the time the team developers could invest no more than a few hours per week. The code was developed from scratch to improve over the design and quality of last year’s code. Thus one of the challenges was to keep a smooth development line and to avoid dead ends in the development, as well as to maintain a development environment in which a larger number of developers could work productively.
Technology and human sciences: A dialogue to be constructed or a common tread to be rediscovered?
2013
In this contribution we begin to discuss the thesis that an analysis of the similarities and differences of typical methodologies of human sciences, technology and hard sciences show some unforeseen but strong similarities between human sciences and technologies. In this context fuzzy sets ideas provide useful tools which help to render the analysis more quantitative but without loosing the connection with a purely descriptive analysis. These kinds of considerations would have been hardly conceivable in the setting of XIX Century conception of science. It is the development of Information sciences that has allowed these problems to emerge. In this paper we shall then briefly outline the gen…
Formulations and valid inequalities for the capacitated dispersion problem
2023
This work focuses on the capacitated dispersion problem for which we study several mathematical formulations in different spaces using variables associated with nodes, edges, and costs. The relationships among the presented formulations are investigated by comparing the projections of the feasible sets of the LP relaxations onto the subspace of natural variables. These formulations are then strengthened with families of valid inequalities and variable-fixing procedures. The separation problems associated with the valid inequalities that are exponential in number are shown to be polynomially solvable by reducing them to longest path problems in acyclic graphs. The dual bounds obtained from s…
Market scope of vendors in the OSS software market
2007
This paper studies the market scope of vendors that produce software for telecommunications operators, i.e. the Operations Support Systems (OSS) market. The aim is to find out the strategies used by vendors in the OSS market. The market scope is studied on two dimensions: 1) the breadth of the scope in the OSS market; and 2) focus on the telecommunications industry. The breadth of market scope is divided into four categories: niche, vertical, layer and broad scope. We examine empirical vendor data from the years 2002 and 2005. Results show that all hypothesized strategies are present in the market. Most of the firms have either a niche, a vertical or a broad market scope, and they are speci…