scholarly journals Effect of Cylindrical Turbulators on the Mixing Process in Basic Venturi Gas Mixer Using OpenFOAM

2019 ◽  
Vol 252 ◽  
pp. 04004
Author(s):  
Mathias Romańczyk ◽  
Witold Elsner
Keyword(s):  
Mixing Time ◽  
Qualitative Evaluation ◽  
Fuel Mixture ◽  
Mixing Process ◽  
The European Union ◽  
Environmental Standards ◽  
Air Inlet ◽  
Venturi Pipe ◽  
The Impact

This study was devoted to improving the mixing quality in a Venturi gas mixer. It is well known that the performance of industrial gas engines strongly depends on the quality of air and fuel mixture and therefore on its homogeneity. Incorrect mixture proportions may lead to unstable operation of the entire industrial gas engine and excessive emissions exceeding environmental standards of the European Union. The effectiveness of the mixing process in a Venturi gas mixer depends on many factors, i.e. correct proportions between Air inlet, Venturi Throat diameter, as well as gas inlet area. To improve the intensification of the whole mixing process, as well as to increase the mixing time between gas and air, it was decided to insert disturbing elements in form of cylindrical turbulators into the Venturi pipe. Therefore numerical calculations were performed for the most commonly consumed by industrial gas engines lean Air-Fuel mixture, with an air excess coefficient ratio of λ = 1.6. In numerical analysis, OpenFOAM software was used to investigate the impact of cylindrical turbulators on the whole mixing process in a basic Venturi gas mixer. Particular attention was focused on the Air-Fuel Ratio (AFR) changes, Turbulent Kinetic Energy (TKE) and Pressure loss [Pa], which is one of the most qualitative evaluation parameters of a gas mixer.

Public Administration in Central and Eastern Europe

2021 ◽  
Author(s):  
Stanisław Mazur
Keyword(s):  
Public Administration ◽  
Public Management ◽  
Western Europe ◽  
Economic Transformation ◽  
The European Union ◽  
Quality Of Governance ◽  
Anglo American ◽  
The 2008 Financial Crisis ◽  
The Impact

In the early 1990s, the Central and Eastern European countries (CEE countries) saw the collapse of communist regimes and an unprecedented political and economic transformation that resulted in the establishment of democratic, law-governed states and market economies. Administrative reforms, which became an important milestone in this transformation, were considerably influenced both by administrative legacies predominant in the countries and by the Europeanization processes associated with their accession to the European Union. The administrative legacies, which combine elements of various traditions (e.g., German, Napoleonic, and Anglo-American) are still strongly affected by what is left of the communist era. Conversely, the impact of Europeanization processes on public administrations in CEE countries has proved to be much weaker than initially expected. The process of building a professional and apolitical civil service in CEE countries has been plagued by discontinuity and inconsistency, owing to the specific administrative culture of the region, the weakening pressure to modernize EU institutions, and the consequences of the 2008 financial crisis, as well as growing populist tendencies in the region. All these factors encouraged the belief that political control over public administration needs to be tightened in order for the effectiveness and quality of governance mechanisms to be improved. The quality of governance and public management varies widely across the CEE countries. What they have in common—at least to some extent—is the fairly high dynamics of change, including the reversal of the effects of previously implemented reforms. The latter factor may be interpreted as a search for country-specific reform paths, partly due to disappointment with the values and models prevailing in Western Europe, and somewhat as a consequence of growing populist tendencies in the region.

scholarly journals Entrepreneurial Innovation: the European Union perspective

2018 ◽  
Vol 18 (2) ◽  
pp. 137-154 ◽  
Author(s):  
Augustin Ignatov
Keyword(s):  
European Union ◽  
Future Research ◽  
The European Union ◽  
Business Innovation ◽  
The North ◽  
Quantitative Analyses ◽  
Entrepreneurial Innovation ◽  
Entrepreneurial Activities ◽  
The Impact

Abstract Entrepreneurship is the driving force of economic development and progress. A successful state, first of all, provides favourable conditions motivating the businesses to grow and flourish. Presently, the European Union is developing unevenly with multiple economic misbalances across the community, the West and the North being more competitive than the South and the East. The aim of the present research is to examine the framework of interdependence between the degree to which the governance quality and economic freedom in the European Union are supporting entrepreneurial activities and the performance of the community in terms of entrepreneurial innovation. The results reached through applying both qualitative and quantitative analyses show that the interdependence between entrepreneurial innovation and regulatory efficiency is strong for many of the European Union states which is determined by multiple factors including the institutional and economic ones. Also, the present paper underlines the importance of the proper regulatory framework for the efficient development of business innovation. The future research on this matter could consider in depth the impact of socio-cultural environment, its influence on the quality of governance and the impact of both upon the European entrepreneurial innovation.

THE IMPACT OF BUSINESS ENVIRONMENT ON REGIONAL DISPARITIES

2016 ◽  
Vol 4 ◽  
pp. 187-191 ◽  
Author(s):  
Viktor Šoltés ◽  
Katarína Repková Štofková
Keyword(s):  
Statistical Data ◽  
Slovak Republic ◽  
Business Environment ◽  
Specific Form ◽  
Regional Disparities ◽  
The European Union ◽  
Related Quality ◽  
The Impact ◽  
Positive Effect

The structure of the business environment, as part of the socio-economic situation, indirectly affects a citizen’s quality of life. A “friendly” business environment has a positive effect on job formation, thus helping with employment. A country encourages formation and development of large enterprises through various incentives that reduce regional disparities, especially in less-developed regions. Nevertheless, a huge majority of enterprises in the European Union are small- and medium-sized. Self-employed persons are considered a specific form of business. Their activity is strongly influenced by state policy. This paper analyzes the business environment in regions of the Slovak Republic. Its principal aim is to examine the development of regional disparities and the related quality of citizens’ lives. An evaluation of statistical data of the structure of the business environment in the Slovak Republic indicated a change in legal units in relation to business. Although the number of legal units are stable, the number of legal persons has increased and that of natural persons-entrepreneurs decreased. Deepening of regional disparities was not observed across regions of the Slovak Republic.

Effects of Vacuum Mixing, Water Addition, and Mixing Time on the Quality of Fresh Chinese White Noodles and the Optimization of the Mixing Process

2015 ◽  
Vol 92 (5) ◽  
pp. 427-433 ◽  
Author(s):  
Rui Liu ◽  
Yimin Wei ◽  
Xiaolong Ren ◽  
Yanan Xing ◽  
Yingquan Zhang ◽  
...  
Keyword(s):  
Mixing Time ◽  
Mixing Process ◽  
Water Addition ◽  
Chinese White ◽  
Vacuum Mixing ◽  
Mixing Water

Optimization of the Mixing Process and Quality Evaluation of the Thirteen-Component Granular Mixture

2014 ◽  
Vol 693 ◽  
pp. 261-266 ◽  
Author(s):  
Jolanta B. Krolczyk ◽  
Marek Tukiendorf ◽  
Rafał Dawid
Keyword(s):  
Quality Assessment ◽  
Quality Evaluation ◽  
Mixing Time ◽  
Sum Of Squares ◽  
Mixing Times ◽  
Mixing Process ◽  
Component Mixture ◽  
Granular Mixture ◽  
Research Results

The paper presents the research on the quality of thirteen-component granular mixture. The changes in the quality of the mixture after reduction the mixing time from a standard time of 30 minutes to: 25 minutes, 20 minutes and 15 minutes have been analyzed. The research has been conducted in industrial conditions where a vertical mixer with worm agitator with the charge of two tons was used. Research results were presented graphically as changes in concentration of components shares in the mixing time of 30, 25, 20 and 15 minutes and the obtained results were compared. Quality assessment of a thirteen-component mixture with the use of residual sum of squares for four mixing times was carried out.

New scientometric indicator for the qualitative evaluation of scientific production

2015 ◽  
Vol 116 (11/12) ◽  
pp. 661-676 ◽  
Author(s):  
Nedra Ibrahim ◽  
Anja Habacha Chaibi ◽  
Mohamed Ben Ahmed
Keyword(s):  
Qualitative Evaluation ◽  
Production Quality ◽  
Scientific Production ◽  
Bibliographic Databases ◽  
Scientometric Indicator ◽  
Content Type ◽  
Publish Or Perish ◽  
The Impact ◽  
Quality Of Research

Purpose – This paper aims to propose a new qualitative indicator for the evaluation of the productions of researchers in any discipline. Design/methodology/approach – Based on the study of existing quantitative indicators, the authors’ approach consisted of the hybridization of two indicators. This hybridization is based on the individual H_index (Hi_index) and H_index contemporary (Hc_index) weighted by qualitative factors. The initial sources of the data are online bibliographic databases, such as Google Scholar and Publish or Perish. Findings – A new scientometric indicator was used to compare the scientific production quality of researchers and their classification (as part of a research community) as the classification of national and international research institutions. The authors have applied a new indicator to compare and classify the members of their laboratory, RIADI, according to their quality of scientific production. Practical implications – The indicator is an improvement of the H_index. It is a measure that can have an impact on society (influencing research attitudes, affecting quality of research). By this contribution, the authors measure more than one aspect by involving all the external factors that can affect the quality of research. Originality/value – This paper fulfils a gap in the literature concerning the absence of a qualitative indicator among the set of existing quantitative measures. Additionally, this paper addresses the limitations of the existing qualitative practices, such as peer review and citation analysis. In the new qualitative indicator, the authors involve all of these qualitative aspects: the influence of the age of the paper, the number of co-authors, the order of the co-authors, the impact factor of journals and the conference rankings.

scholarly journals Informal caregivers’ views on the quality of healthcare services provided to older patients aged 80 or more in the hospital and 30 days after discharge

2020 ◽  
Author(s):  
Ingvild Lilleheie ◽  
Jonas Debesay ◽  
Asta Bye ◽  
Astrid Bergland
Keyword(s):  
Health Services ◽  
Social Services ◽  
Healthcare System ◽  
Older Patients ◽  
Informal Caregivers ◽  
Healthcare Providers ◽  
The European Union ◽  
Professional Care ◽  
The Impact

Abstract Background: In the European Union (EU), informal caregivers provide 60% of all care. Informal caregiving ranges from assistance with daily activities and provision of direct care to helping care recipients to navigate within complex healthcare and social services systems. While recent caregiver surveys document the impact of informal caregivers, systematic reviews show that they have unmet needs. Because of the political desire to reduce the length of hospital stays, older patients are discharged from the hospital ‘quicker and sicker’ than before. The transition between different levels of the healthcare system and the period after hospital discharge is critical for elderly patients.Caregivers’ perspectives on the quality of older patients’ care journeys between levels of the healthcare system may provide valuable information for healthcare providers and policymakers. This study aims to explore older patient’s informal caregivers’ views on healthcare quality in the hospital and in the first 30 days after hospitalisation. Method: We conducted semi-structured individual interviews with 12 participants to explore and describe informal caregivers’ subjective experiences of providing care to older relatives. The interviews were then transcribed and analysed thematically.Results: The analysis yielded the overarching theme ‘Informal caregivers – a health service alliance – quality contributor’, which was divided into four main themes: ‘Fast in, fast out’, ‘Scant information’, ‘Disclaimer of responsibility’ and ‘A struggle to secure professional care’. The healthcare system seemed to pay little attention to ensuring mutual understandings between those involved in discharge, treatment and coordination. The participants experienced that the healthcare providers’ main focus was on the patients’ diseases, although the health services are supposed to view patients holistically.Conclusion: Based on the information given by informal caregivers, health services must take into account each person’s needs and preferences. To deliver quality healthcare, better coordination between inter-professional care teams and the persons they serve is necessary. Health professionals must strengthen the involvement of caregivers in transitions between care and healthcare. Future work should evaluate targeted strategies for formal caregivers to cooperate, support and empower family members as informal caregivers.

scholarly journals Implications of coal disappearance from the energy mix in Romania

2022 ◽  
Vol 354 ◽  
pp. 00057
Author(s):  
Izabela-Maria Apostu ◽  
Maria Lazar ◽  
Florin Faur
Keyword(s):  
Energy System ◽  
The European Union ◽  
Energy Strategy ◽  
Energy Mix ◽  
2030 Agenda ◽  
Firm Commitment ◽  
Reduce Emissions ◽  
The Impact ◽  
The Eu

The firm commitment of the European Union (EU) to fully implement the 2030 Agenda requires the Member States to find and implement solutions to meet global targets, including ensuring clean and affordable energy. The EU encourages the elimination of coal from the energy mix in order to quantitatively reduce emissions and the impact on the environment and human health. Romania attaches great importance to the 2030 Agenda and understands that developing the national economy, increasing the quality of life, and caring for the environment are inextricably linked to the development and modernization of the energy system, for which the National Energy Strategy 2019-2030 was developed. According to it, in the perspective of 2050, Romania will be based on a diversified, balanced, and modern energy mix through clean technologies. But what if coal would disappear from the energy mix? The causes of the disappearance of coal from the energy mix could be represented by global or national policies or the depletion of known exploitable reserves, the latter being a less probable variant. In this paper, we aim to highlight and analyze some scenarios related to the possibilities of replacing coal in the energy mix, which would change the perspectives.

scholarly journals Integration of practice nurse competencies in general practices in Belgium: a qualitative evaluation study of a postgraduate program.

2019 ◽  
Author(s):  
Evi Matthys ◽  
Roy Remmen ◽  
Peter Van Bogaert
Keyword(s):  
Qualitative Research ◽  
Practice Nurse ◽  
Qualitative Evaluation ◽  
Daily Practice ◽  
Future Expectations ◽  
Practice Nurses ◽  
Roles And Responsibilities ◽  
General Practices ◽  
The Impact

Abstract Background Recently, first steps were taken to educate primary care nurses in Belgium and consequently trained practice nurses have only recently been introduced in Belgian general practices. Therefore, it is unclear what the experiences of general practitioners (GPs) and trained practice nurses are concerning these new multidisciplinary collaborations. With this study we would like to report new insights in the visions and experiences of GPs and practice nurses concerning the new postgraduate education for practice nurses, the current and future roles and responsibilities taken on by practice nurses, and the experienced collaboration between GPs and practice nurses. Methods A qualitative research methodology was chosen, based on the principles of a descriptive qualitative research design. This study was conducted in primary healthcare in Belgium. Four focus group interviews were conducted. A total of twenty practice nurses and ten GPs participated. The practice nurses had followed or were currently following the postgraduate program for practice nurses, all the GPs were experienced in collaborating with a trained practice nurse. Results Four major themes could be derived from the data: practice nurses’ roles and responsibilities, importance of protocol care, consequences of the collaboration, and future opportunities and perspectives. GPs expressed the importance of education for practice nurses, in order for them to take on more responsibilities in the practices. Trained practice nurses showed more initiative towards taking on a broader range of tasks. They both expressed the importance of care protocols in support of a good multidisciplinary collaboration. The impact on the daily practice was experienced as far-reaching by GPs. While collaborating with trained practice nurses, GPs experienced the ability to provide a higher quality of care. Conclusion Both GPs and trained practice nurses have positive experiences about providing shared care in general practices. GPs were surprised by the initiative, shown by practice nurses, and by the broad range of tasks nurses took on. The impact of this collaboration on both the daily practice and the quality of patient care, is unanimously experienced as positive, even though it entails a higher workload. GPs have specific future expectations about the practice nurse education and roles.

scholarly journals Trading on Food Quality due to Changes in Prices: Are There Any Nutritional Effects?

Nutrients ◽  
2019 ◽  
Vol 12 (1) ◽  
pp. 23 ◽  
Author(s):  
Cesar Revoredo-Giha ◽  
Faical Akaichi ◽  
Neil Chalmers
Keyword(s):  
Nutritional Quality ◽  
Food Prices ◽  
Rate Of Change ◽  
The European Union ◽  
Nutritional Effects ◽  
Food And Drink ◽  
Quality Of Products ◽  
The Uk ◽  
The Impact

The analysis of changes in prices is not only important because they directly affect households’ affordability and, therefore, their food security but also because they may trigger changes in the composition of their food and drink choices. Thus, an increase in prices may force a household with limited resources to choose a bundle of goods with lower prices that substitute their original choices and are probably of lower quality. This paper considers the situation of each UK country and the implications that trading down in quality within a food and drink category has on nutrition. Two motivations to pursue these analyses are to explore the sort of substitutions that households do within a category due to an increase in prices and, in the UK leaving the European Union (Brexit) context, the impact that an increase in food prices may have on nutrition. After computing estimates for trading down for each country for the period 2007–2014, we regress the annual rate of change by nutrient with respect to the annual trading in quality for six food qualities that are major contributors of fat, sugar and salt to the diet. The results indicate that trading down in quality occurs in most of the studied categories and countries, and when households trade down, they move to products with worse nutritional quality. This points out the need to keep improving the quality of products through reformulation, ensure that consumers are well informed of nutritional quality of products and monitor the effect of changes in prices.

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