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Publicações

2018

Service innovation implications: The importance of business alignment by employees

Autores
Lima, IC; Au Yong Oliveira, M; Madaleno, M;

Publicação
Proceedings of the European Conference on Innovation and Entrepreneurship, ECIE

Abstract
The market's evolution and ever-increasing competitiveness forces organizations to find new ways to reinvent themselves. According to the principles of the Service Dominant (SD) Logic, it is argued that Service Innovation depends on the participation of all the direct actors in any given organization, focusing on its employees as key elements for delivering the brand promise made to the consumer, regardless of any eventual direct contact between them. The success of organizations relies on their growth capability and, for this reason, the measurement of investments is fundamental to the business strategy. Thus, the tangibility of the Internal Brand Management (IBM) is essential in management decisions, only possible through the construction of Key Performance Indicators (KPI). Given the intangibility inherent to the processes of brand building, brand promise delivery and service co-creation, which are directly dependent on the definition of the business strategy, the present article proposes a method to create KPIs with the aim of understanding the alignment of employees in relation to the business strategy. Based on a literature review, which corroborates the relevance of the theme, a case study is presented on a multinational Business-to-Business (B2B) organization. Using a mixed methodology, the research is divided into two moments: 1) A qualitative analysis which a) Identifies the strategic categories of the organization being studied, b) Evaluates the focus given to those main categories through the most important internal brand dissemination documents and c) Organizes the Employee Satisfaction Questionnaire based on those same categories; 2) A quantitative analysis to evaluate the results of the alignment of the Employee Satisfaction Questionnaires' answers with those strategic categories previously referred to for the period 2011 to 2017. Therefore, it is suggested that all organizations have tangible information that allows the identification of KPIs to serve IBM. However, traditionally, there is no objective systematization of these indicators, which could lead to the measurement of the employees' alignment under this perspective.

2018

Remote maintenance support with the aid of cyber-physical systems and cloud technology

Autores
Jantunen, E; Gorostegui, U; Zurutuza, U; Albano, M; Ferreira, LL; Hegedus, C; Campos, J;

Publicação
PROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERS PART I-JOURNAL OF SYSTEMS AND CONTROL ENGINEERING

Abstract
This article discusses how a business model based on traditional maintenance can evolve to generate servitization strategies, with the help of remote maintenance support. The application of cyber-physical systems and cloud technologies play a key role for such maintenance purposes. In fact, the utilization of large quantities of data collected on machines and their processing by means of advanced techniques such as machine learning enable novel techniques for condition-based maintenance. New sensor solutions that could be used in maintenance and interaction with cyber-physical systems are also presented. Here, data models are an important part of these techniques because of the huge amounts of data that are produced and should be processed. These data models have been used in a real case, supported by the Machinery Information Management Open System Alliance Open System Architecture for Condition-Based Maintenance standard architecture, for streamlining the modeling of collected data. In this context, an industrial use case is described, to enlighten the application of the presented concepts in a working pilot. Finally, current and future directions for application of cyber-physical systems and cloud technologies to maintenance are discussed.

2018

Robotic Welding Tests MIG Standard and CMT+P in Aluminum Alloy 6082-T6 for Optimization of Penetration, Cord Width and Reinforcement

Autores
Pascoal, A; Izeda, AE; Cecilio, V; Mineiro, N; Gonçalves, J; Ribeiro, JE;

Publicação
Proceedings

Abstract

2018

Load balance recovery for multi-drop distribution problems: A mixed integer linear programming approach

Autores
Silva, E; Ramos, AG; Oliveira, JF;

Publicação
TRANSPORTATION RESEARCH PART B-METHODOLOGICAL

Abstract
In road freight transport, a loaded vehicle with a distribution route and a compliant load balance at the depot can become non-compliant during the route, since the total weight of the cargo and its centre of gravity change with each delivery. Nowadays, vehicles circulating on our roads either undermine safety regulations or lack operational efficiency when these regulations are taken into account and cargo is extensively rearranged after each delivery. This issue has been completely ignored both in the vehicle routing literature and in the container loading literature. The aim of this work is to provide tools capable of ensuring that a cargo arrangement is load balanced along the complete distribution trip. It proposes a multi-drop load balance recovery algorithm (MDLBRA), which seeks to ensure that, when both a complete route and the respective cargo arrangement are provided, the boxes to be removed from the cargo arrangement at the depot and the boxes to be rearranged at each customer are identified, allowing the cargo to remain balanced after every delivery. It is important to notice that a MDLBRA is not a container loading algorithm: a MDLBRA modifies solutions generated by any container loading algorithm so that load balance is guaranteed when the truck leaves the depot and during the entire distribution route. A mixed integer linear programming (MILP) model is proposed to balance the cargo at each customer stop. The MILP model incorporates load distribution diagram constraints in order to determine the feasible domain for the location of the centre of gravity of the cargo arrangement, taking into account the regulatory requirements and the technical characteristics of the vehicle. Extensive computational experiments show that a MDLBRA can be used in practical contexts, as the MILP model was able to find a solution in less than ten minutes in 93% of the unbalanced test instances.

2018

Stress among on-duty firefighters: an ambulatory assessment study

Autores
Rodrigues, S; Paiva, JS; Dias, D; Paulo, J;

Publicação
PEERJ

Abstract
Background. Stress at work has been broadly acknowledged as a worldwide problem and has been the focus of concern for many researchers. Firefighting, in particular, is frequently reported as a highly stressful occupation. In order to investigate firefighters' occupational health in terms of stress events, perceptions, symptoms, and physiological reactions under real-world conditions, an ambulatory assessment protocol was developed. Methods. Seventeen firefighters' cardiac signal was continuously monitored during an average of three shifts within a working week with medical clinically certified equipment (VitalJacket (R)), which allows for continuous electrocardiogram (ECG) and actigraphy measurement. Psychological data were collected with a software application running on smartphones, collecting potential stressful events, stress symptoms, and stress appraisal. Results. A total of 450.56 h of medical-quality ECG were collected, and heart rate variability (HRV) analysis was performed. Findings suggest that although 'fire' situations are more common, 'accidents' are more stressful. Additionally, firefighters showed high levels of physiological stress (based on AVNN and LF/HF HRV metrics) when compared to normative healthy population values that may not be diagnosed using merely self-reports. Discussion. The proposed ambulatory study seems to be useful for the monitoring of stress levels and its potential impact on health of first responders. Additionally, it could also be an important tool for the design and implementation of efficient interventions and informed management resolutions in real time. Potential applications of this research include the development of quantified occupational health (qOHealth) devices for real life monitoring of emergency personnel stress reactions.

2018

Elliptical Monopole Antenna on InP Substrate for Sub-THz RTD-based Oscillators

Autores
Santos, HM; Pessoa, LM; Salgado, HM; Pinho, P;

Publicação
2018 IEEE ANTENNAS AND PROPAGATION SOCIETY INTERNATIONAL SYMPOSIUM ON ANTENNAS AND PROPAGATION & USNC/URSI NATIONAL RADIO SCIENCE MEETING

Abstract
The high permittivity of InP substrates has been a limiting factor for the bandwidth and efficiency of antennas fabricated in this material. In this manuscript we propose an elliptical monopole, monolithically fabricated in InP, fed by a CPW line. The suggested topology was simulated using HFSS finite element method. Input reflection coefficient measurements were performed on the monopole to validate the proposed antenna. Simulated and measured -10 dB bandwidths of 27 and 24 GHz were obtained, respectively. The peak simulated efficiency and realized gain were 95.37% and 4.6 dBi.

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