The Eastward Enlargement of the Eurozone: Trade and FDI

Trade and FDI, Economic Integration

Continuous dynamic monitoring of bridges: different perspectives of application

This paper makes a brief characterisation of some aspects related with the extensive research activity of the Laboratory of Vibrations and Structural Monitoring (ViBest) of the Faculty of Engineering of the University of Porto (FEUP) in the field of Continuous Dynamic Monitoring of Bridges and Special Structures, selecting four examples where large high quality databases have been created since 2007, namely Infante D. Henrique bridge, Pedro e Ines footbride, FEUP Campus stress-ribbon footbridge and Trezoi railway bridge

CALCULATION OF PRESSURE DROP IN NARROW ROTATING ANNULAR CLEARANCES

This paper presents a review of correlations used for pressure drop calculation in narrow annular clearances with rotation of inner cylinder. Based on these review, a new general correlation is proposed to calculate pressure drop through such clearances. Results are compared with experimental data for different flow regimes: laminar, laminar with Taylor vortex, smooth and rough turbulent, with good agreement. The main objective is to develop a simple and general correlation that could be used for backflow calculation in twin-screw multiphase pumps. In this kind of pump, the volumetric efficiency is defined mainly by the backflow rate which occurs in the annular clearance between screw and casing. Usually, the backflow is calculated ignoring the influence of shaft rotation over pressure drop and does not consider the several possible flow regimes. Depending on operational conditions, this simplification can lead to significant errors

SUBSEA MULTIPHASE PUMPING SYSTEM X GAS LIFT: AN EXERGO-ECONOMIC COMPARISON

This paper presents a methodology for an exergetic comparison between two artificial lift systems: a gas lift and a twin-screw multiphase pump system, and a standalone offshore platform. A software (Hysys.Process v2.1) was used to simulate an offshore platform with the artificial lift methods and calculate all properties (including exergy) of the material and energy streams. The twin-screw multiphase pump behavior was simulated with a thermodynamic model developed recently (NAKASHIMA (2000) and NAKASHIMA, OLIVEIRA and CAETANO (2002)). The operational conditions of the PETROBRAS 7- MRL-72D-RJS well operating with cited systems were predicted by an internal study conducted in PETROBRAS (BARUZZI et al. (2001a) and partially published in BARUZZI et al. (2001b)). The comparisons cover the range of 2000 to 2020, the same range adopted in the study. Results show that in general the production costs are lower when the multiphase pump is used. The main advantages of this method over the gas lift is the absence of material (gas) recycle and a better energy management

Collection time inequalities: fetching water in Ethiopia

In 2015, WHO and UNICEF reported that only 12% of Ethiopia’s population have access to water on premises. High proportion of the population thus needs to fetch water for their survival. Considering the importance of time to fetch water on an individual’s health and well-being, we aim to demonstrate where water fetching issues are the most prevalent. This study highlights the widespread burden of fetching water and the significant disparities in terms of accessibility with regards to the location of the source within population groups. Characterization of collection time by regions, type of source, education level and water fetcher illustrated where work mostly remains to reach universal access to drinking water

Revisiting MDGs in view of accessibility with particular attention to distance: examples in Eastern Africa

Data from WHO and UNICEF Joint Monitoring Programme (JMP) for Water Supply and Sanitation show that 91% of the worldwide population have access to an improved source of water in 2015. However, this indicator does not reflect the definition of water access considering distance to the source. This is an important factor to take into account considering that 42.5% of the world population don’t have access to water on their premises in 2015. This study examined accessibility data from the JMP by taking distance into account for 5 Eastern African countries. As reported by JMP, 72,6% of these countries population have access to an improved water source while our analysis revealed that this figure falls to 58,5 % when considering distance in the access criterion. To achieve universal and equitable access to safe and affordable drinking water for all, as desired in the new Sustainable Development Goals, this impact must be considered to ensure reasonable access to water

Diagnóstico de propriedades agrícolas no município de Cristalina-GO, visando estabelecer um sistema de produção integrada de feijão comum (Phaseolus vulgaris L.).

Está se conduzindo um projeto para subsidiar a implantação de um Modelo de Produção Integrada de Feijão. Realizou-se um diagnóstico dos sistemas de produção em uso e de algumas características das propriedades candidatas a sediarem essas Unidades. Esse diagnóstico norteou a elaboração do sistema de produção para feijão irrigado, que está sendo validado a campo com a participação dos produtores

Equine protease inhibitor system as a marker for the diagnosis of chronic obstructive pulmonary disease (COPD).

Polymorphism in programming languages enables code reuse. Here, we show that polymorphism has broad applicability far beyond computations for technical computing: parallelism in distributed computing, presentation of visualizations of runtime data flow, and proofs for formal verification of correctness. The ability to reuse a single codebase for all these purposes provides new ways to understand and verify parallel programs.Comment: 10 pages, 3 figures. Proceedings of HPTCDL, the 1st Workshop on High Performance Technical Computing in Dynamic Languages, November 17, 2014, New Orleans, Louisiana, USA. Supporting Information available at http://jiahao.github.io/parallel-prefi