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Number of results: 22
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Abstract

Supply chain management emerged as the ultimate management strategy to ensure the competitive advantages of companies in their markets. Suppliers are considered as inevitable sources of external risks in modern supply chains. In this respect, resonance is essential for the ability to adapt in resonance to disturbances and to restore in choosing suppliers. As suppliers of critical resources are vulnerable, choosing better suppliers to create resilience, and thereby reducing the risks in the supply chain as a whole. In recent years, emphasis has been placed on supply chain resilience and resilient suppliers, but few studies have been conducted on the evaluation and selection of resilient suppliers with multi-criteria decision making models. The main purposes of this study are a broad review of the literature on the resilient factor, factorization, efficiency of key factors in the reliance of suppliers and the ranking of resilient suppliers using the combined approach of SWARA and WASPAS. For this purpose, after a comprehensive review of Literature interview with the experts of petrochemical upstream industry, six key factors and overall resilience of suppliers were identified in eighteen factors. Then the weight of the dimensions was determined by using the SWARA method. The output of the method showed that supplier accountability and key performance factors were the most important factors in assessing the resilience of suppliers. Using the supporting method, five resilient suppliers were evaluated based on six dimensions and the final ranking of suppliers was determined. With this ranking, the industry will be a major step towards improving supply chain and increasing suppliers’ resilience to address disruptions and risks, improve supply and achieve competitive advantage and satisfy the consumers’ needs.
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Authors and Affiliations

Mehdi Ajalli
1
Nima Saberifard
2
Babak Zinati
2

  1. Bu-Ali Sina University, Department of Management, Hamedan, Iran
  2. slamic Azad University, Department of Industrial Management, Rasht Branch, Rasht, Iran
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Abstract

This article examines the role of laughter in overcoming crises. Based on the study of different materials produced in the Basque Country between 1987 and 2017 and analyzed using the CDA, we will see how punk culture a pioneer in the desacralization of ETA and how mass culture subsequently took hold of this topic, thus facilitating a collective catharsis.
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Authors and Affiliations

Ludivine Thouverez
1
ORCID: ORCID

  1. Universite de Poitiers, MIMMOC
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Abstract

Understanding and measuring mental well-being among adolescents has recently become a priority. The validity and reliability study of the 7-item short version of the Warwick Edinburgh Mental Well-Being Scale (SWEMWBS) has not been examined in Turkish adolescents. Therefore, this study aims to adapt the 7-item Warwick Edinburgh Mental Well-Being Scale to Turkish and examine the relationships between loneliness, emotional flexibility, resilience, and mental well-being. The data were collected by convenience sampling method from 820 adolescents aged 14-18 from 73 city of Turkey. During the adaptation process of SWEMWBS, confirmatory factor analysis, concurrent validity, and reliability analysis were performed. The findings confirmed the one dimensionality of the 7-item scale on the Turkish adolescent sample. In addition, a significant positive relationship was found between mental well-being and emotional flexibility and resilience. However, there was a significant negative correlation between mental well-being and loneliness. The results showed that the Turkish version of SWEMWBS had strong psychometric properties in adolescents.
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Authors and Affiliations

Yakup İme
1

  1. Necmettin Erbakan University, Konya-Turkey, Turkey
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Abstract

The aim of the research is to conceptualise the methodology of analysing regional development paths. To do so, the model of regional development path transformation was created. The model consists of indicators describing each of the process areas: 1) path dependency; 2) event exposure; 3) adaptation to short-term shocks; 4) long-term adaptability, and 5) region performance. The model also indicates relationships between these indicators and describes the most probable behaviours of the regional economies during the process.

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Authors and Affiliations

Korneliusz Pylak
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Abstract

The problem of regional diversity is the subject of a broad scientific discourse. The dynamics of territory development is connected with many factors. Among them, the so-called spaces for development opportunities of individual units and resiliance issues for external factors of regions. The author discusses the diversity of individuals from the point of view of these two factors. It indicates future directions of regional research, which will show why regions at the start with potentially the same structure are developing completely differently and why in most cases resistance is associated with innovation and in the case of Polish regions it is not.

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Authors and Affiliations

Ewa Łaźniewska
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Abstract

The social, economic and environmental zone is constantly changing in terms of factors aimed at improving the quality of life, economic and technological development of the city while at the same time rational use of resources of the natural environment. Change as a dynamic factor is an impulse for creating new behaviors of residents and interactions between them and public and private sector entities. The article attempts to systematize selected contemporary concepts shaping the city, emphasizing the coherence of their assumptions and the scope of the issues discussed. Looking for features that characterize the city, which balance the needs and expectations of its users.

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Authors and Affiliations

Monika Janiszek
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Abstract

The aim of this study was to investigate the effectiveness of Acceptance and Commitment Therapy (ACT) among parents of children with autism spectrum disorder (ASD) through reducing psychopathology, improving quality of life, and developing psychological skills (psychological flexibility, self-compassion, and ego-resiliency). The study was quasi-experimental in the form of a four-week ACT intervention; three measurements were obtained (baseline, one week after training, one month after training). It involved 60 participants divided into three groups: two criteria groups (ACT in the off-line form, N=20, ACT in the on-line form, N=20), and one control group (N=20). The results showed a significant improvement in the area of quality of life and the level of psychological skills among parents participating in the ACT training, and this improvement was maintained both a week and a month after the end of the training. The form of participation in the training did not differentiate the groups, which may indicate their equivalence. In addition, significant intergroup differences were shown between participants from the criterion groups and those from the control group, as the subjects who did not participate in the training were characterized by lower quality of life and lower level of psychological skills, and higher intensity of psychopathological symptoms. The results can be used both in designing further scientific research and in clinical practice, especially in the psychological care of families of persons diagnosed with ASD, with special focus on the area of developing psychological skills and the use of short-term therapeutic methods.
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Authors and Affiliations

Anna Pyszkowska
1
Małgorzata Ewa Górnik-Durose
1

  1. University of Silesia, Katowice, Poland
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Abstract

This study aims to test the effectiveness of online Mindfulness-Based Cognitive Therapy in increasing the resilience of Covid-19 patients. It has applied a website-based cyberpsychology approach to providing Mindfulness- Based Cognitive Therapy interventions. The online program was delivered over six sessions. These were carried out across four meetings, each of which lasted 30-120 minutes. The study is pre-experimental, using a single group pre-test to post-test experimental design. There were 5 patient participants with Covid-19, 1 male and 4 female. They were aged 20-27 years. All were either asymptomatic or presented only mild symptoms. The Connor Davidson Resilience Scale (CD-RISC) was used to measure pre- to post-intervention change in resilience, and a negative emotion scale was used to derive emotion ratings after each session. Results were analysed using a Wilcoxon signed-rank test. This showed a value of Z = -2.023 (p < 0.05), with a mean rank of 3.00, and a sum of ranks of 15.00. The analysis indicates that online Mindfulness-Based Cognitive Therapy can significantly increase resilience in Covid-19 patients.
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Authors and Affiliations

Zainul Anwar
1
ORCID: ORCID

  1. University of Muhammadiyah Malang, Indonesia
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Abstract

The paper aims to answer the following questions: What are the trends in streetscape design? And how can streetscape become more resilient to climate change in the coming years? Although the research questions of exploratory nature also challenge theoretical claims, this is a hypothetical study, designed to foster a discussion about the visions of the future streetscape and new technology for an urban sidewalk. It covers a description and a cross-case comparison of an experimental product – the Climate Tile, implemented in Denmark in 2018, and a theoretical solution – the Sponge Pavement – a model system based on the structural soil foundation and permeable surface, evolved as an idea in 2018 in Poland. The cases are examples of innovations selected to describe a new type of water-permeable surfaces matching the urban context. Both solutions share common features: they are in that there is no need to place heavy equipment on the project site; they match the urban context of a dense city, being smooth, resistant and easy to clean. The comparison of the Climate Tile and the Sponge Pavement allowed determining the optimal application for the given solution. It also proved the trend towards the rainwater management-oriented direction of the development of the streetscape of the future. The study results could contribute to the discussion of the streetscape of the future. We would like to focus on the idea of the Sponge Pavement for further development in laboratory tests and as the pilot project.

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Authors and Affiliations

Magdalena Wojnowska-Heciak
Jakub Heciak
Adam Kłak
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Abstract

This research examines the relationship between urban planning and environmental conditions. As urb-anisation processes increase the density of the built-up tissue of cities, this process puts a lot of pressure on land and natural resources such as rivers and soil. This article aims to verify whether environmental risks (e.g. flooding) and land protection from them is sufficiently addressed in the examined spatial policies and strategies.
This problem can be observed in the Powiśle district of Warsaw where buildings are constructed in the proximity of the unregulated Vistula River and that is why there is the direct risk of flooding. It is done despite the lack of legally binding Master plans which would consider the natural risk.
The literature research on the Municipality-led spatial planning policies and documents was completed with qualitative interviews with key actors in this process (planners: the authors of Master plans under construction, regarding the area of Powiśle South and North). Main designers and team members were asked about the priorities of these plans as well as their dynamics (taking more than ten years to establish those plans).
An environmental analysis was conducted in the GIS mapping system of many databases. The comparison of both aspects of current development, formal urban planning and environmental protection was made in an interdisciplinary approach. The study presents an analysis of the situation for urban planning along with flood maps and other environmental conditions. The results show the lack of necessary alignment of environmental issues with the planning documentation and strategies.
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Authors and Affiliations

Joanna Koszewska
1 2 3
ORCID: ORCID
Łukasz Kuzak
3
ORCID: ORCID

  1. Sorbonne Université – Faculté des Lettres, Ecole Doctorale de la Géographie de Paris, Institut de Géographie, 191, Saint Jacques, 75005, Paris, France
  2. Warsaw University of Technology, Faculty of Architecture, Warszawa, Poland
  3. Warsaw University of Technology, Faculty of Geodesy and Cartography, Plac Politechniki 1, 00-661 Warszawa, Poland
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Abstract

The targeted modification of the material composition is a common procedure used to improve the parameters of the final products. This paper deals with the targeted modification of polymer systems composition using two various types of alternative fillers. The first type of alternative filler (SVD) has been obtained from energetics where it arises as a by-product of flue gas desulfurization. The second alternative filler used (KAL) is based on waste from glass production. The elastomeric systems designed for the production of car tires and solid wheels for transport systems were used in the role of modified polymer systems. Alternative fillers (SVD, KAL) have been applied as a substitution of commonly used fillers (carbon black, silica). The filler – elastomeric matrix interaction, rheology, cure characteristics, as well as hardness and rebound resilience of vulcanizates, which are important parameters for their industrial application, have been studied in the new prepared polymeric systems. The main output of the work is a new formulation of an elastomeric system for industrial applications with high rebound resilience and low rolling resistance, which is the subject of the international patent [1]. The modification of composition using raw material substitution can also bring significant environmental and economic effects.
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Bibliography

  1.  D. Ondrušová, M. Pajtášová, and I. Labaj, “Elastomer mixture and method of its preparation”, Patent PCT/SK2019/050015(2020). Available on: https://patentscope.wipo.int/search/en/detail.jsf?docId=WO2020130952&_cid=P21-KBV9GG-52072-1
  2.  L.M. McKeen, “Thermoplastic Polyurethane Elastomers (TPU)”, in Permeability Properties of Plastics and Elastomers chapter 12.1 pp. 251‒285, (3rd Edition). USA, Elsevier, 2012.
  3.  I. Kücükrendeci, “The investigation of suitable welding parameters in polypropylene sheets joined with friction stir welding”, Bull. Pol. Acad. Sci. Tech. Sci. 67(1), 133‒140 (2019), doi: 10.24425/bpas.2019.127342.
  4.  D. Ondrušová, I. Labaj, M. Pajtášová, and J. Vršková, “Preparation and properties of new elastomeric systems containing alternative fillers”, MATEC Web of Conferences 254(8), 07003 (2019), doi: 10.1051/matecconf/201925407003.
  5.  D. Ondrušová, I. Labaj, J. Vršková, M. Pajtášová, and V. Mezencevová, “Application of alternative additives in the polymer composite systems used in automotive industry”, IOP Conf. Ser.: Mater. Sci. Eng. 776, 012101 (2020).
  6.  J. Vršková, D. Ondrušová, I. Labaj, and I. Kopal, “Effect of alternative filler from glass industry on the selected properties of friction polymermatrix in automotive industry”, IOP Conf. Ser.: Mater. Sci. Eng. 776, 012106 (2020).
  7.  M. Pajtášová, D. Ondrušová, R. Janík, Z. Mičicová, B. Pecušová, I. Labaj, M. Kohutiar, and K. Moricová, “Using of alternative fillers based on the waste and its effect on the rubber properties”, MATEC Web of Conferences 254(8), 04010 (2019).
  8.  I. Labaj, D. Ondrušová, J, Vršková, and M. Kohutiar, “The effect of various alternative filler granularity on the properties of elastomeric vulcanizate”, IOP Conf. Ser.: Mater. Sci. Eng. 776, 012098 (2020).
  9.  W. Dierkes, “Raw materials and compounds”, Twente: University of Twente, (2007). [Online]. http://laroverket.com/wpcontent/ uploads/2015/03/Raw_materials_and_compounds.pdf
  10.  Z. Zhenglong, S. Bin, L. Jiangang, D. Zhiguang, and H. Zhongbo, “Research on ride comfort performance of a metal tire”, Bull. Pol. Acad. Sci. Tech. Sci. 68(3), 491‒502 (2020), doi: 10.24425/bpasts.2020.133384.
  11.  P.E.P. Giannelis, “Polymer-layered silicate nanocomposites: synthesis, properties and applications”, Appl. Organomet. Chem. 12, 675–680 (1998).
  12.  A. Limper, Mixing of Rubber Compounds, p.192, Munich: Hanser Publishers, 2012.
  13.  J.S. Dick, “Technology – Compounding and Testing for Performance”, in Rubber Mixing, 2nd Edition, chapter XXIII, pp. 504‒522, Munich: Hanser Publishers, 2009.
  14.  J. D. Vicente, Rheology, p. 338, Rijeka: InTech, 2012.
  15.  ASTM D2084–01, 2001, Standard Test Method for Rubber Property—Vulcanization Using Oscillating Disk Cure Meter ,USA: Plan Tech Inc.
  16.  ASTM D2240–15, 2017, Standard Test Method for Rubber Property—Durometer Hardness, USA: Plan Tech Inc.
  17.  B. Banerjee, “Rubbers, Compounding Ingredients and their Criterion in Tyre Retreading” in Tyre Retreading, chapter I, pp. 1–29, Shawbury: Smithers Rapra Technology Ltd., 2015.
  18.  J.S. Dick, “ODR Cure Test Parameters”, in Basic Rubber Testing – Selecting Methods for A Rubber Test Program, USA: ASTM International, 2003
  19.  J.S. Dick, Rubber Technology – Compounding and Testing for Performance, p. 592, 2nd Edition, Hanser Publishers, Munich, 2009.
  20.  S.R. Khimi and K.L. Pickerink, “A New Method to Predict Optimum Cure Time of Rubber Compound Using Dynamic Mechanical Analysis”, J. Appl. Polym. Sci. 131, 1‒6 2014, doi: 10.1002/app.40008.
  21.  S. Futamura, “Elastomer compositions for tire treads having low rolling resistance and good wet and dry grip traction”, European Patent Specification EP0234303B1, 1986. [Online]. https://patents.google.com/patent/EP0234303B1/en
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Authors and Affiliations

Darina Ondrušová
1
Ivan Labaj
1
Mariana Pajtášová
1
Juliana Vršková
1
Slavomíra Božeková
1
Andrea Feriancová
1
Petra Skalková
1

  1. Alexander Dubček University of Trenčín, Faculty of Industrial Technologies in Púchov, Ivana Krasku 491/30, 020 01 Púchov, Slovakia
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Abstract

The interview with Michele Salzman, a renowned scholar of Late Antiquity at the University of California, Riverside, focuses on issues of reinterpreting the methods of the historian of anti-quity in the face of new research developments. Here Salzman outlines the importance and possibilities of interdisciplinary studies and the global dimension of Late Antiquity, outlining the possible research horizons of the coming decades. Referring to the case of the decline of the Roman Empire, the conversation deals with the ways in which the interpretation of the past can be understood as a reflection of the current desires or fears of societies in times of crisis. Special attention in the conversation was given to the issues of resilience and the role of women in the period of Late Antiquity.
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Authors and Affiliations

Marta Nowak
1
ORCID: ORCID

  1. Uniwersytet Marii Curie‑Skłodowskiej w Lublinie
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Abstract

Although Indonesia has recorded good performance in its national economic development, especially in the agriculture sector during the Covid-19 pandemic, the impact of the pandemic on farming and food systems has not been evaluated yet. This study has evaluated the resilience of the two dominant existing farming systems in West Timor, i.e. (i) wetland farming system and (ii) dryland farming system. This research aims to understand the resilience of farming after the Covid-19 pandemic and to develop strategic policies that could be adopted to increase the resilience of the farming system in West Timor. A quantitative analysis using the Structural Equation Modelling (SEM) was employed to evaluate the relationship and impact of the following seven generic aspects: labour movement, sustainability, economy, socio- culture, output markets, input markets, farming system resilience, and 27 reflective indicators. The analysis shows that dryland farming systems are more resilient than wetland farming systems. It might be understood from the size of the regression coefficient, as the impact of exogenous construct variables of the environment, socioculture, input, and output on the resilience of dryland farming systems is more significant than on wetlands. Economic performance rather than labour movement factors will create better resilience of farming systems for wetland or dryland after the Covid-19 pandemic. Finally, the economic recovery process and the ongoing input supply mechanism after the Covid-19 pandemic have increased the resilience of the dryland food system more than the resilience of the wetland farming system.
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Authors and Affiliations

Fredrik L. Benu
1
ORCID: ORCID
Hamza H. Wulakada
2
ORCID: ORCID
David B.W. Pandie
3
ORCID: ORCID
Yosua Tanggela
1
ORCID: ORCID
Paul G. King
4
ORCID: ORCID
Halena M. Asa
5
ORCID: ORCID
Yantus A.B. Neolaka
6
ORCID: ORCID

  1. Nusa Cendana University, School of Environment, Jl. Adisucipto, Penfui, No. 5, Kupang, 85001, Nusa Tenggara Timur, Indonesia
  2. Nusa Cendana University, Faculty of Education and Teachers Training, Department of Geography Education, Jl. Adisucipto, Penfui, No. 5, Kupang, 85001, Nusa Tenggara Timur, Indonesia
  3. Nusa Cendana University, Faculty of Politics and Social Science, Jl. Adisucipto, Penfui, No. 5, Kupang, 85001, Nusa Tenggara Timur, Indonesia
  4. Griffith University, School of Environment and Science, Building No. 13, 170 Kessels Road, Nathan, 4111, Queensland, Australia
  5. Nusa Cendana University, Faculty of Agriculture, Department of Forestry, Jl. Adisucipto, Penfui, No. 5, Kupang, 85001, Nusa Tenggara Timur, Indonesia
  6. Nusa Cendana University, Faculty of Education and Teachers Training, Department of Chemical Education, Jl. Adisucipto, Penfui, No. 5, Kupang, 85001, Nusa Tenggara Timur, Indonesia
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Abstract

The COVID-19 pandemic has exposed a specific paradox of contemporary urban planning. Cities that since the dawn of civilization have been considered the safest and most attractive human habitats turn into traps in a pandemic. For example New York, the most densely populated city in the United States, became the world’s epicentre of the pandemic in April 2020. Since 1992, successive teams governing the city stimulated pro-ecological planning strategies. From a neglected city, threatened with crime and plagued by terrorism, they turned it into a green metropolis, a symbol of a city of the 21st century. One of the most important planning and urban achievements was the successful revitalization of the post-industrial waterfront piers of Brooklyn and Queens. The rapid growth of bicycle transport stimulated by the planning authorities and supported by the construction of a network of bicycle routes along the main streets and coastal promenades should be noted as well. The aim of this study is to investigate the effects of the planning transformations in New York on the course of the COVID-19 pandemic, and to answer the question whether they made the city more resilient and safer.
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Authors and Affiliations

Artur Jasiński
1
ORCID: ORCID
Wojciech Oktawiec
2
ORCID: ORCID

  1. Andrzej Frycz Modrzewski Krakow University, Faculty of Architecture and Fine Arts
  2. New York Institute of Technology, School of Architecture and Design
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Abstract

The aim of the research was to identify factors favouring the change of innovation process models by diff erent regions, especially less developed regions. The chapter addresses the most critical issues in the literature of path dependence and resilience. Literature analysis allowed to identify the puzzling areas of the existing research and build out of them a transparent and holistic approach to a comprehensive set of conditions for the transformation of regional development paths. Findings of the research are an important step in understanding nonlinear and holistic processes of the renewal and creation of the regional development paths, as well as explaining how adaptation to short-term shocks and long-term adaptability is the result of the interactions among path dependency, event exposure and reactive ability.

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Authors and Affiliations

Korneliusz Pylak
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Abstract

This article takes up the matter of contemporary threats to cities and urbanity, setting the problems cities face today against the background of the two categories of the resilient city and the city developing sustainably. The author describes and presents the evolution of the sustainable development concept as such, as well as the generational change in priorities that has taken place where the development of urbanised areas is concerned, given the way the concept has undergone a certain devaluation, in the light of its failure to achieve fulfi lment. The challenges cities face today require multi-faceted activity, in respect of increased inclusivity, robustness and resilience, and flexibility. This leaves today’s idea of the resilient city embracing old elements of the sustainable city, but also augmenting them in various ways.

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Authors and Affiliations

Jacek Kwiatkowski
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Abstract

Flood risk management are considerably influenced by several factors, such as all sources of flooding, social circum-stances, policy and even the potential for local economic growth. To encourage government, business, community and oth-er parties to continue investing in flood risk management projects, it is necessary to give understanding that the projects can also provide economic benefits through systematic predictions and assessments of costs, benefits and social values, espe-cially on flood-affected communities. This study aims: (1) to develop knowledge and understanding on small-scale flood risk management project in Malang City, Indonesia, and; (2) to assess the economic efficiency of the project investment considering all benefits, both monetary and non-monetary. The research method is a mixed method combining quantitative questionnaires (N = 53 from 162 families) with qualitative in-depth interviews (N = 10) and field observations. The runoff discharge and the inundation depth were calculated using hydrology and hydraulic analysis, while the economic efficiency was analysed using cost benefit analysis (CBA). The results show that the community-based flood risk management system can reduce the flood risk up to 30% compared to before the implementation of that system. This system also provides direct financial benefits through the use of drainage channels for fish and vegetables farming. It causes the increase of the net so-cial benefit about 70–90% and the net present value (NPV) greater than zero (NPV > 0). Therefore, the project investment is recommended to be proceeded.

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Authors and Affiliations

Laksni Sedyowati
ORCID: ORCID
Grahita Chandrarin
Ginanjar I.K. Nugraha
Bambang Nugroho
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Abstract

The aim of the study was to analyse the state of flood-prone areas development in 10 towns on the Warta River in the Wielkopolska region in terms of the possibility of adapting existing and planned buildings to flood risks. A significant percentage of the areas exposed to floods was the basic criterion for selecting three towns for the second stage of the research. The analysis of the content of 22 local spatial development plans (LSDP) in three selected towns has revealed that the plans for special flood hazard areas (SFH) and embanked areas lack precise requirements for flood adaptation. The research proved that small riverside towns in Wielkopolska region insufficiently use planning tools to create appealing and resilient waterfronts and reduce their vulnerability. New buildings not adapted to changing water levels are still being built in the flood-prone areas, because LSPD plans do not impose such requirements. The authors proposed the graphical analysis method (based on overlay maps), which allows to indicate the areas requiring special flood-adaptation guidelines. The building and site recommendations in LSDP should refer to BFE level and may include various types of amphibious architecture and their location conditions, which has been identified in the study.

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Authors and Affiliations

Anna B. Januchta-Szostak
Agata Karaśkiewicz
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Abstract

The increasing demand for electricity and global attention to the environment has led energy planners and developers to explore developing control techniques for energy stability. The primary objective function of this research in an interconnected electrical power system to increase the stability of the system with the proposed RRVR technique is evaluated in terms of the different constraints like THD (%), steady-state error (%), settling time (s), overshoot (%), efficiency (%) and to maintain the frequency at a predetermined value, and controlling the change of the power flow of control between the areas renewable energy generation (solar, wind, and fuel cell with battery management system) based intelligent grid system. To provide high-quality, reliable and stable electrical power, the designed controller should perform satisfactorily, that is, suppress the deviation of the load frequency. The performance of linear controllers on non-linear power systems has not yet been found to be effective in overcoming this problem. In this work, a fractional high-order differential feedback controller (FHODFC) is proposed for the LFC problems in a multi-area power system. The gains of FHODFC are best adjusted by resilience random variance reduction technique (RRVR) designed to minimize the overall weighted absolute error performance exponential time. Therefore, the controller circuit automatically adjusts the duty cycle value to obtain a desired constant output voltage value, despite all the grid system’s source voltage and load output changes. The proposed interconnected multi-generation energy generation topology is established in MATLAB 2017b software.
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Bibliography

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Authors and Affiliations

B. Prakash Ayyappan
1
R. Kanimozhi
2

  1. Department of Electrical and Electronics Engineering, V.S.B Engineering College, Karur and Research Scholar (Electrical), Anna University, Chennai, Tamilnadu, India
  2. Department of Electrical and Electronics Engineering, University College of Engineering, Anna University-BIT Campus, Tiruchirapalli, Tamilnadu, India
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Abstract

The third decade of the 21st century clearly reminded us of the volatility, uncertainty, complexity and ambiguity of the environment in which economies, organizations and individuals operate, bringing at least two serious economic crises. On the one hand, the COVID-19 pandemic brought an unprecedented shock of both demand and supply nature, thus materializing the risks associated with the system of international economic connections constructed over many decades. On the other hand, we are facing a global economic crisis caused by Russia's armed aggression against Ukraine. The aim of the article is to capture the impact of the above-mentioned phenomena on the economic situation in Poland from the internal and international perspective, with the global perspective also taken into account. As part of the internal perspective, the focus was on inflationary processes in the short and long term, taking into account their course and possible countermeasures. As part of the international perspective, attention was drawn to one of the most frequently discussed issues, which is making forecasts and assessments regarding the effectiveness and efficiency of sanctions imposed on Russia and Belarus. The second problem within this perspective, which affects both many European economies and developed economies around the world in a tanginble way, is Europe's dependence on Russia for access to energy resources and on China for production capacity. The third issue from the international perspective are the problems related to the reconstruction of the Ukrainian economy after the war and the development prospects of this economy, paying particular attention to the role that Polish enterprises can play in these processes. Finally, within the global perspective, attention was paid to two issues, namely the so-called economy of moderation and the future of globalization. It was assumed that moderation can be considered a synonym of global rationality and a guarantee of the long-term survival of civilization, and therefore also a special case of the so-called common good. With regard to globalization, understood as an advanced form of internationalization, the focus was on the opportunities and threats for the region of Central and Eastern Europe resulting from significant changes in international value chains in connection with the COVID-19 pandemic and the war in Ukraine.
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Authors and Affiliations

Marian Gorynia
1
Piotr Trąpczyński
1

  1. Instytut Gospodarki Międzynarodowej, Uniwersytet Ekonomiczny w Poznaniu

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