<abstract xmlns="http://www.w3.org/1999/xhtml">

Boiling is a phase-change phenomenon, which is of significant practical application potential due to large heat flux values exchanged in the process. The paper provides an overview of calculation methods that enable to determine the values of pool boiling heat flux on smooth surfaces. The most commonly used correlations were analysed and the boiling phenomenon occurring on smooth surfaces has been discussed based on the experimental data. A modification of the Rohsenow model has been proposed with the values of the constants determined experimentally.
</abstract>

Determination Methods of Boiling Heat Flux

<abstract xmlns="http://www.w3.org/1999/xhtml">

The remarkable feature of rapid urbanisation, which has fundamentally altered the distribution of land cover and land use (LULC), is what sets the contemporary era apart. The impact of these modifications on the resilience of Abuja’s metropolitan infrastructure from 2017 to 2022 is examined in this study. Our study examined the dynamic changes in LULC using information from remote sensing, geospatial analysis software, and land cover categorization techniques. The findings indicate major changes in Abuja’s topography, including a decrease in the number of water bodies, a decrease in the number of trees, the expansion of urban areas, changes in agricultural land use, and fluctuations in the amount of grazing land. The previously mentioned changes have significant consequences for urban infrastructure resilience, affecting various sectors such as water supply, transportation, housing, utilities, and food distribution systems. The infrastructure supporting water supply and sanitation may be severely stretched as the number of water bodies decreases, affecting the quantity and quality of accessible water supplies. As metropolitan areas expand, greater strain is placed on transportation infrastructure, exacerbating traffic congestion and complicating road maintenance difficulties. Changes in agricultural land use can have an impact on food production and distribution, hence affecting food security. Deforestation can cause ecological deterioration, affecting a variety of aspects such as temperature regulation, biological diversity, and atmospheric purity. Adaptive approaches, green infrastructure, and adopting sustainable urban design can all strengthen the resilience of urban infrastructure, according to this study. The significance of renewable energy adoption, community participation, green building laws, the establishment of public-private partnerships, integrated water resource management, and data-driven decision-making is emphasised. Improving legal frameworks that prioritise resilience and sustainability is critical. It is critical to have a complete grasp of the complicated links between changes in LULC, and the resilience of urban infrastructure in order to enable educated urban design and decision-making processes. Policymakers and urban planners may address and minimise the negative consequences of climate change while improving the overall quality of life in cities by using sustainable development practises. The findings of this study have the potential to dramatically improve Abuja’s people’s well-being and sustainability, especially given the variety of urban difficulties they encounter.
</abstract>

Assessing the Impact of Land Cover and Land Use Change on Urban Infrastructure Resilience in Abuja, Nigeria: A Case Study from 2017 to 2022

<abstract xmlns="http://www.w3.org/1999/xhtml">

The article analyzes the accessibility of selected examples of public utility buildings, implemented at the end of the 20th century and at the beginning of the 21st century, in the structures of the conteporary city of Kielce. In order to learn about the functioning and architectural solutions of buildings that are among the most frequented by the general public, an in situ study was conducted, using a multi-criteria method that allows comparative analysis and is an effective tool in making an accurate assessment. The selection of the most relevant evaluation criteria was based on the actual needs and psychophysical condition of today’s society. The research was locationally focused on the Kielce city area, taking into account current reports and statistics indicating the largest increase in the number of people over 65 in the Świętokrzyskie voivodeship. The studies carried out have led to conclusions and recommendations to help in the design and management of facility spaces.
</abstract>

Multi-Criteria Evaluation of Accessibility of Conteporary Public Utility Buildings – On the Example of Kielce

<abstract xmlns="http://www.w3.org/1999/xhtml">

The current trend of conservation of immovable monuments is – in addition to ongoing maintenance and protection – adaptation. Simply taking care of a monument is not an effective way to keep it in good repair if it is not used. Utility is the primary function of architecture, as buildings are erected for this purpose only. No building can survive without function, especially a centuries-old one. This is because the lack of a user condemns any monument to destruction, which leads to ruin and, ultimately, to demolition. Therefore, proper adaptation to new functions and current technical conditions is necessary. In the process of adaptation, all the heritage values of the object should be brought out and only then should new ones be introduced, taking into account the integrity of the monument and ensuring authenticity. Sacred architecture has special cultural and historical values, both tangible and intangible, i.e. spiritual. Continually discussed adaptations of religious buildings in the case of Judaic religious buildings destroyed and abandoned after World War II proved to be the best way to reclaim synagogues. The Kielce synagogue is one of the early examples of adaptation to another function. The building, destroyed during World War II, was rebuilt in the 1950s in a different form than the original one, for use as an archive. This historic building, however, has been standing useless for more than a decade now, and this fact has a destructive effect on its heritage value, therefore it is necessary to take action as soon as possible. Numerous concepts for this building located in a prestigious area in Kielce can be produced, which will be presented and evaluated in terms of substantive potential of utilizing its value in a new incarnation.
</abstract>

New Proposal for the Former Synagogue in Kielce

<abstract xmlns="http://www.w3.org/1999/xhtml">

Superabsorbent polymers (SAP) allow for the introduction of changes to the pore network characteristics in cementitious composites and the course of binder hydration. Therefore, SAP addition contributes to significant changes in multiple properties of concrete. The effect of internal curing differs depending on its design process – the initial content of curing water in the concrete mix, polymer characteristics and water absorption properties, the state in which it’s added (non-saturated/hydrogel), and the design method regarding curing water content in the entire water content. The authors investigated those variables’ influence on selected concrete properties – compressive strength, water absorption, and shrinkage. All independent variables significantly influenced the studied properties of concrete. The increase in the total water-to-cement ratio led to a significant decrease in the mechanical properties of cementitious composites. Modification with the use of SAP added in the form of hydrogel had the most positive influence on the properties of concrete..
</abstract>

The Influence of Total Water-To-Cement Ratio on the Mechanical Properties of Cementitious Composites Internally Cured with Polyacrylic Superabsorbent Polymers (SAP)

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Structure and Environment

ABOUT THE JOURNAL   Structure and Environment, a quarterly journal, has been published by the Kielce University of Technology since 2009.  It uses Editorial Manager for online submission and manuscript tracking https://www.editorialmanager.com/sae/default1.aspx. It is recommended to provide ORCID codes for each co-author. Papers are published in English and are assigned digital object identifier DOI:10.30540/sae.  Structure and Environment is an Open Access journal that allows unrestricted and free-of-charge access to its content at www.sae.tu.kielce.pl and www.sciendo.com./journal/SAE.  Peer-review process:   The editor appoints two reviewers whose names are hidden from the authors.  Manuscript evaluations are assigned one of four outcomes:　Accept, Minor Revisions, Major Revisions, and Reject. Manuscripts with Minor Revision" do not require a second review. Manuscripts receiving a Major Revision evaluation must be subjected to a second review. If the author(s) failed to make satisfactory changes, the manuscript is rejected Rejected manuscripts are given no further consideration.  The editor decides whether the paper fulfill all requirements i.e. formal and scientific.  As soon as the publication appears in electronic forms on the Internet there is no possibility to change the content of the article.   The authors do not bear any publication costs.　   In 2023, Structure and Environment was entered into the Polish Ministry of Education and Science Journals list with a score of 70 points. Committed to ensuring the high quality of our publications.  The content of the quarterly is indexed by more 10 ten bibliographic databases and made available in the collection of peer-reviewed interdisciplinary scientific articles, e-Publikacje Nauki Polskiej.　  Format of the journal – electronic forme- ISSN: 2657 – 6902  ISSN: 2081 - 1500DOI: 10.30540/sae/  Journal Metrics:  Index Copernicus Value (IVC) 2022 = 100  The Polish Ministry of Education and Science 2021 = 70 pts   Archiving  Sciendo archives the contents of this journal in Portico - digital long-term preservation service of scholarly books, journals and collections.  Plagiarism Policy  The editorial board is participating in a growing community of Similarity Check System's users in order to ensure that the content published is original and trustworthy. Similarity Check is a medium that allows for comprehensive manuscripts screening, aimed to eliminate plagiarism and provide a high standard and quality peer-review process. 

Structure and Environment

Volume 16 (2024): Issue 1 (March 2024)

ENVIRONMENT

Determination Methods of Boiling Heat Flux

Assessing the Impact of Land Cover and Land Use Change on Urban Infrastructure Resilience in Abuja, Nigeria: A Case Study from 2017 to 2022

STRUCTURE

Multi-Criteria Evaluation of Accessibility of Conteporary Public Utility Buildings – On the Example of Kielce

New Proposal for the Former Synagogue in Kielce

The Influence of Total Water-To-Cement Ratio on the Mechanical Properties of Cementitious Composites Internally Cured with Polyacrylic Superabsorbent Polymers (SAP)

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