Browse

You are looking at 1 - 10 of 2,255 items for :

  • Architecture and Design x
Clear All
Open access

Nina Schuster and Anne Volkmann

Zusammenfassung

Um Lebenschancen räumlich differenziert zu erfassen, stellt unser Beitrag in Anknüpfung an die Quartierseffekteforschung und den „capability approach“ einen Ansatz vor, der Lebenschancen als räumlich strukturierte Möglichkeiten und Wahlfreiheiten bei der Erfüllung von Bedürfnissen konzipiert. Individuelle Ressourcen entscheiden darüber, welche Möglichkeitsräume der Bedürfnisbefriedigung erschlossen werden können. Dies ist abhängig von der Lebenslage und verändert sich im Lebensverlauf, womit sich auch die Rolle des Quartiers für die Lebenschancen ändert. Anstatt von „benachteiligenden Quartieren“ zu sprechen, fokussieren wir auf benachteiligende Lebenslagen im Quartier.

Open access

Yonas Mitik Degu and Derbew Alebel

Abstract

Gyrocopter or gyroplane is a type of rotorcraft that uses an unpowered main rotor in free autorotation to develop lift. Gyrocopter rotor blades have smaller cord length and longer span compared to helicopters blades. National Advisory Committee for Aeronautics (NACA) 8-H-12 gyrocopter rotor blade profile, unsymmetrical airfoil sections were used for this research. An attempt has been made in this work to investigate the effect of ribs and spar elements in response to applied load. Three possible modeling alternatives were studied to predict the actual induced stress and deformation of the blade: Model I is by considering the blade shell part only, Model II is blade shell with 25 numbers of ribs and without the spar element and Model III is blade shell with 25 numbers of ribs and with spar element. The rotor blade was sized based on single seat open frame and high-wind-start gyrocopter. Structural static analysis has been carried out to evaluate the strength of composite rotor blade using ANSYS Workbench 15. The results show that among these three proposed models; Model III had registered minimum Von Mises stress and deformation. Also the result reveals that by considering ribs and spar element during analysis of gyrocopter blade is crucial because, it will help to know the actual induced stress and deformation. The predicted value of induced stress and deformation is closer to the actual values will help the designer not to overdesign the parts. Consequently, the main drawbacks related to overdesign increase in weight and cost will be minimized; thereby the product operational efficiency will be improved.

Open access

Temidayo Gabriel Apata

Abstract

China has pursued a sustainable path of development in line with reality for four decades. Economic restructuring started in its vast rural areas, focusing on reforms targeting income increase for rural farmers. These radical sustainable policies that China’s political leaders imbibed were not embraced by Nigeria’s past leaders and these resulted in the bane of underdevelopment. The study examines the level and composition of the drivers of public-spending policy mechanisms that contribute to gross domestic product (GDP) growth in the agricultural sector in China and Nigeria and draws up a model of Chinese development for Nigeria. Secondary data was used and were sourced from FAOSTAT and International Monetary Fund’s Government-Finance Statistics (various issues) from 1970–2016. Random-effects model results revealed that the policy of public-expenditure (PUEXP) and intervention (INTEV) variables were significant but negative, while enterprise-development (ENTDEV), drivers of development (DRIVERS) and Dummy D1t (modest public-expenditure access) were significant and positive for Nigeria. Three variables were significant and positive. The dummies D1t and D2t (macro-economic stability) were positive and significant for China. Public-expenditure and GDP growth has an inverse relationship in Nigeria, but a direct relationship in China. In Nigeria, PUEXP coefficient is ˗0.6810 and 0.8902 for China. Hence, macro-economic stability, enhanced market mechanisms and economic progress resulted in China and hereby lessons are drawn for Nigeria. Public leaders are responsible for governing the market in a manner that induces businesses to produce public value. However, if public-policy mechanisms are not well-designed to fit the economy’s needs it could significantly influence the economy in a negative way, and the society bears the costs.

Open access

Renata Valerievna Oplakanskaia, Lyudmila Alekseevna Osmuk, Anastasia Pogorelskaya and Inna Pomorina

Abstract

The paper examines the role of universities in city development under the Triple Helix model through case studies of Russian and British cities. The cases of Bristol and Sheffield illustrate that the implementation of the Triple Helix model can be achieved through different approaches. In Bristol, universities reached beyond their campuses to create a ground for cooperation with partners. In Sheffield, there was a platform for interaction with partners using the brand of a top university. Meanwhile, the examples of Tomsk and Novosibirsk provide some evidence for the growing importance of universities in the innovative urban economy. The comparative analysis provides recommendations for Russian universities, whose application of the Triple Helix model is prevented by the lack of experience in developing an effective marketing strategy and weak interactions between research and enterprises.

Open access

Agnieszka Szczepańska and Katarzyna Pietrzyk

Abstract

Centrally located public spaces, such as old towns, are an important feature of historic towns. They are often the most characteristic and representative element of a town that brings together members of the local community, plays various sociological and social roles and promotes direct interactions between the users of space. Only high-quality public spaces can effectively fulfil their role. The aim of this study was to analyse spatial order in public spaces on the example of the Old Town district of Morąg in North-Eastern Poland. The quality of public spaces was analysed with the use of a self-designed method, a field inventory and a questionnaire survey involving 100 members of the local community who were asked to evaluate the quality of public spaces in the town. The results of the comparison were used to identify public spaces that require revitalisation. The study demonstrates that spatial order directly influences the quality of public spaces. Our findings indicate that multidimensional analyses of spatial order and opinion surveys provide valuable inputs and should be included in studies evaluating the quality of public spaces.

Open access

Sílvia Sousa

Abstract

Traditional planning practice, in its essence, usually pursues urban growth, and is more comfortable dealing with population increase and other growth dynamics than with population decline and what ensues. The main goal of this article is to assess local planning attitudes in Portugal towards demographic change, and in particular towards population decrease, in terms of housing development. In order to do so, a comparative content analysis of municipal director plans (PDM) – Planos Diretores Municipais – of the fourteen Portuguese cities that shrank prevalently and persistently across both conjoining periods 1991– 2001–2011 was completed using a simple matrix of analysis. The qualitative analysis of the regulations of these PDMs showed that aspects of population decrease and shrinkage in relation to housing development are gradually entering local planning practice, though there is not yet an overall intelligible strategy. In Portugal, demographic change and housing development are only just starting to come together in local spatial planning.

Open access

Manolis Christofakis, Eleni Gaki and Dimitrios Lagos

Abstract

The objective of this paper is to analyse the changes that occurred in the regional disparities and sectoral specialisation of the Greek regions due to the economic crisis. The research problem is to identify the effect that the crisis had on the developmental perspectives of the regions and on regional policy priorities. In this framework, we explore the regional disparities, along with the allocation and specialisation of economic sectors in two separate time periods: the pre-crisis period (2000–2007) and the crisis period (2008–2014). The variable used is regional employment in the branches of economic activity. The methods used are Coefficient of Variation, Location Quotients and Shift-Share Analysis. According to the results, we classify the spatial units into categories and we propose means of regional policy. The results show that the disparities increased during the first period of the crisis and declined in the next, without, however, reaching the levels of 2000. In the first period the dynamic economic sectors are concentrated mainly in the metropolitan region of Attica and in the island region of South Aegean, while local advantages are shown in several regions except Attica. During the period of crisis, Attica and South Aegean lost their sectoral dynamism, while a few regions resisted. Regarding the local share effects, the more urbanised regions show negative local shares. The rest of the regions exhibit local advantages. Thus, according to these results, a concluding remark is that the more traditional activities seem to be more resilient, unlike the modern activities, which seem more sensitive to the crisis and are located mainly in the large cities and the most urbanised regions of the country. Regarding the proposed regional policy means, infrastructure improvement is indicated for most of the urbanised regions in order to improve their developmental environment. For the other regions, a more balanced sectoral structure must be promoted. Of course, in order to propose more targeted policy measures, it is important that regional development features (according to the classification of the regions and the proposed policy measures) be adapted to smaller areas and to a greater number of narrower economic sectors, rather than simply applying them at the regional level. This is also true of the effect that some other factors such as human capital and innovative capacity have on regional resilience. Future research will focus on this.

Open access

Olena Hrechyshkina and Maryia Samakhavets

Abstract

The aim of the paper is to assess the current state, problems and prospects for the development of foreign trade in the Republic of Belarus in the international business environment. The evaluation of foreign trade indicators is based on information from different sources and on comparative economic analysis research methods. Our results indicate the export-oriented economy of the Republic of Belarus, and its dependence on the state of foreign markets and the international business environment. The identified problems in the development of Belarusian merchandise exports are due to the orientation towards primary products, and to poor diversification of products and geographical destination. Particular attention is paid to the internal and external factors restraining exports from the Republic of Belarus. Further development requires the full use of the Belarusian export potential and the implementation of measures to promptly resolve the export difficulties on international markets that stem from internal and external factors.

Open access

Szymon Wójcik

Abstract

In this study, potential factors influencing the decisions made by citizens of the city of Łódź, Poland, regarding the choice of transportation mode used in their daily travel activities were examined. In addition to a brief literature review, an empirical study was performed. Data from a previous quality-of-life study were used to enhance the scope of explanatory variables in a regression model. In order to identify the determinants of travel behaviour, binary logistic regression models were used. The results show that socio-demographic characteristics of respondents and household access to a car most influenced transport mode choices. Also, the relationship between geographic distances and subjective opinions regarding public transport were found to be statistically significant. The determinants for choosing either public or private transportation varied.

Open access

Daniela Szymańska and Mirosław Wylon

Abstract

The study presents the demographic development of big cities (≥100,000 inhabitants within the city’s administrative borders) in Poland from 1950 to 2016. The article demonstrates the similarities and differences in these cities’ demographic development, showing demographic trends in Poland’s various periods of socio-economic development using the graphical trajectory method. The presented study on demographic development of Polish cities uses trajectories, showing them to be an additional useful tool in analyses of demographic development of cities, regions and other territorial units. It was indicated that this simple graphic representation opens new interpretative possibilities; it demonstrates development stages, shows both the process nature (demographic development of cities in this case), and whether this process is progressive or regressive in nature. The trajectory method allows us to read the dynamics of changes in a particular process (in the distances between successive trajectory points).