Performance indicators for reactive distillation design

A cost indicator for the design and multi-objective optimization of reactive distillation columns, designated capacity, was introduced in previous work by the authors. The question of this indicator’s effectiveness as a measure of the actual column cost, is herein investigated over a number of designs by comparing it with the value obtained by means of conventional costing procedures. The results show that the level of accuracy obtained when using capacity is satisfactory and certainly acceptable for a preliminary design stage

How team sports behave as a team? : general network metrics applied to sports analysis

The aim of this study was to analyse the general properties of networks in different team sports. Therefore, the analysis of variance to the general network properties between different team sports and different competitive levels was carried out. Sixty-six official matches (from Handball, Basketball, Football, Futsal, Rink-Hockey and Volleyball) were observed in five possible competitive levels (U12, U14, U16, U18 and Amateurs with more than 20 years). Analysis of variance revealed that the type of sport (p = 0.001; ��=0.647; moderate effect size) and competitive level(p = 0.001; �� = 0.355; small effect size)had significant statistical differences in the general network metrics. It was also found that football generates more connections between teammates but basketball and volleyball promote better results of density and clustering coefficient.info:eu-repo/semantics/publishedVersio

Are the prominent players the most accurate and efficient? : study in football players from different competitive levels

The aim of this study was to study the association between technical performance (volume of play, efficiency index and performance score) and tactical behaviour (indegree and outdegree centrality) in different competitive levels of football. Sixty-six male soccer players (U12 – 11.23 ± 0.3 years old and 2.11 ± 0.9 years of practice; U14 – 13.43 ± 0.8 years old and 3.76 ± 2.4 years of practice; U16 – 15.67 ± 0.7 years old and 5.32 ± 1.3 years of practice; U18 – 17.84 ± 1.1 years old and 9.21 ± 2.2 years of practice; Amateurs with more than 20 years old – 23.45 ± 4.2 years old and 11.12 ± 2.7 years of practice) were observed in three official matches. The indegree centrality showed a large positive correlation with performance score (r = 0.630; p = 0.001) and very large positive correlation with volume of play (r = 0.735; p = 0.001). The outdegree centrality showed large positive correlation with volume of play (r = 0.535; p = 0.001), efficiency index (r = 0.590; p = 0.001) and performance score (r = 0.669; p = 0.001). In conclusion, this study revealed that the prominence in network activity might be associated with the technical performance in the match.info:eu-repo/semantics/publishedVersio

Periodization based on small-sided soccer games : theoretical considerations

Small-sided games are training activities based on the official game. These games are usually used in soccer training to develop elements of physiological, physical, technical and tactical performance. In the last decade, many studies have been carried out to investigate the influence of small-sided games on physiological responses. Nevertheless, few studies have attempted to analyze the physiological effects or provide methodological considerations for training periodization. Thus, the aim of this paper is to review the general effects of small-sided games in terms of physiological responses. As a result a small review was developed to consider some methodological considerations to implement in soccer training. Finally, an example was proposed of a week spent carrying out soccer microcycles and orientations in order to adopt small-sided games for each session.info:eu-repo/semantics/publishedVersio

Sobre as Forças

[Extrato] Em dinâmica de sistemas mecânicos é por demais importante saber identificar os diversos tipos de forças que atuam nos corpos. De uma forma geral, pode definir-se força como sendo uma grandeza física que representa a medida quantitativa da interação dos corpos que constituem as máquinas e mecanismos. Como é sabido, em dinâmica de sistemas mecânicos, as forças tendem a modificar o estado de movimento (ou repouso) dos corpos materiais (...)

Sustainability: An Introduction View from ICIEOM

This Special Issue of the Brazilian Journal of Operations and Production Management (BJOPM) features four papers selected from the XVIII International Conference on Industrial Engineering and Operations Management (ICIEOM), which conference theme was “Sustainability”, and two invited papers based on keynote speeches regarding Sustainability and its association to Industrial Engineering fields (one from ICIEOM and the other from the ENEGEP conference). This editorial paper evaluates and summarizes these selected contributions as well as introduces the term sustainability

Sobre o carro analisado

Este documento contém uma análise descritiva do carro analisado no âmbito da unidade curricular Integradora II

Non-native freshwater fauna in Portugal: a review

We present the most updated list of non-native freshwater fauna established in Portugal, including the Azores and Madeira archipelagos. This list includes 67 species at national level but corresponds to 84 species records, of which 53 are in the mainland, 23 in the Azores and 8 in Madeira archipelagos. We also discuss the progression of the cumulative number of introductions since 1800 and identify the most probable vectors of introduction, main taxonomic groups and their regions of origin. Furthermore, we review the existing knowledge about ecological and economic impacts, invasion risk and potential distribution of invaders, under present and future climatic conditions, and the applied management actions, including the production of legislation. Along the 20th century the number of successful introductions increased at an approximate rate of two new species per decade until the beginning of 1970s. Since then, this rate increased to about 14 new species per decade. These introductions were mainly a result of fisheries, as contaminants or for ornamental purposes. Fish and mollusks are the taxonomic groups with more established species, representing more than half of the total. Most species (>70%) are native from other regions of Europe and North America. Studies about ecological or socioeconomic impacts are more common for fish, crustaceans and mollusks. Impacts for most amphibians, reptiles and mammals are not thoroughly studied. A few studies on the impacts and management actions of health-threatening mosquitoes are also available. The potential distribution in the Portuguese territory was modelled for 26 species. Only a minority of these models provides projections of distributions under scenarios of future climate change. A comparison of the Portuguese and EU legislation shows large discrepancies in the invasive species lists. Using the EU list and a ranking procedure for the national context, we identify freshwater species of high national concern for which actions are urgently needed.This work was supported by the FRISK Project (Ref. PTDC/AAG-MAA/0350/2014) to F. Ribeiro and by the strategic plan of MARE - Marine and Environmental Sciences Centre (UID/MAR/04292/2013) to F. Banha with a short term post-doc grant on the University of Evora and a small project. A. F. Filipe was supported by the FRESHING project funded by FCT and COMPETE (PTDC/AAG-MAA/2261/2014 - POCI-01-0145-FEDER-356 016824). R. Sousa was supported by FRESHCO project (contract: PTDC/AGRFOR/1627/2014) funded by FCT

Sobre o desempenho do carro

Este documento contém os procedimentos fundamentais para efetuar o desempenho do carro analisado no âmbito da unidade curricular Integradora II