Buildings In Areas Research Articles

Research on visual experience evaluation of fortress heritage landscape by integrating SBE–SD method and eye movement analysis

Urbanization has led to homogenizing heritage site landscapes, and the protective measures have become disconnected from public needs. Additionally, the complex and diverse overall characteristics of heritage sites and the uneven distribution of values across different areas are related to the lack of landscape experience assessment. The “subjective + objective” cognitive evaluation and visual perception framework that adopts the Scenic Beauty Estimation Procedure-Semantic Differential (SBE–SD) method and eye-tracking analysis can compensate for the limitations of a single evaluation method by integrating quantitative and qualitative analysis. This research takes the Yi’an Fortress in Zhangpu County, Fujian Province, as the object and examines the visual experiences of different areas and types of landscapes within the Yi’an Fortress. The findings reveal several key insights: (1) Significant differences were found in the landscape experiences of different areas within the heritage site. The visual experience score of the core building area of Yi’an Fortress is (1.01) > the heritage entrance area (0.897) > the residential area (0.841) > the natural ecological area (0.784), indicating that the natural ecological area should be the focus of future protection and development efforts, with a particular emphasis on enhancing the ‘landscape aesthetic’ and ‘landscape cultural’ aspects. (2) The landscape experience scores can be used to understand the reasons for the differences in participants’ experiences of different landscapes. The architectural heritage landscape of the Yi’an Fortress scored highest in the experience evaluation due to its superior performance in terms of ‘landscape form’ factors. The cultural decorative landscape scored next, while the garden greening landscape scored the lowest, due to their poorer performance in terms of ‘landscape form’ and ‘landscape aesthetics’. (3) The eye-tracking data was consistent with the results of the subjective evaluation, validating the “subjective + objective” cognitive evaluation and visual perception framework, employing the SBE–SD method and eye-tracking analysis is a scientific and effective method for assessing the visual experience of heritage landscapes. These results provide a scientific basis for the heritage planners and managers of the Yi’an fortress to improve the landscape environment, better meet public needs, and preserve the unique character of this vital cultural resource. Furthermore, this study offers a new research method and approach for the protection of other heritage landscapes.

The Carbon Emissions from Public Buildings in China: A Systematic Analysis of Evolution and Spillover Effects

Public buildings, being the primary source of carbon emissions in China’s construction sector, present a pressing need for emission control. This imperative task not only ensures the sustainable progression of China’s building industry but also holds pivotal significance in the realm of global energy conservation and emission curtailment. This study analyzed the spatiotemporal evolution of carbon emissions from public buildings in China and assessed the spatial influence of related factors using a dataset covering 30 provincial units from 2006 to 2021. The analysis employed Theil’s index, Moran’s I index, standard deviation ellipse, and the spatial Durbin model. The study revealed an upward trajectory in carbon emissions from public buildings in China, although the growth rate was generally decreasing. Disparities in emission distribution among provincial units stem largely from intra-regional distinctions, notably prominent in the Low-Intensity High-Economy regions. Provincial carbon emissions from public buildings exhibited significant spatial correlation, manifesting as clusters of high–high and low–low patterns, indicative of mutual influence among adjacent areas. Additionally, the shift in carbon emission focal points from the northeast to the southwest underscored a more pronounced surge in the southwestern regions. Variables such as energy intensity, energy structure, per capita public building area, disposable income per capita, openness level, and environmental governance directly impact carbon emissions from public buildings. Among these, energy intensity, energy structure, disposable income per capita, and environmental governance also had spatial spillover effects. These findings provide a scientific reference and a foundation for policy-making, aiding local administrations in crafting strategies to mitigate carbon emissions from public buildings and foster sustainable progress.

Distribution Patterns and Environmental Determinants of Invasive Alien Plants on Subtropical Islands (Fujian, China)

Plant invasions threaten the biodiversity of islands, causing serious impacts on their ecosystems. To investigate the distribution patterns of invasive alien plants on subtropical islands, the environmental determinants of species richness, and the growth forms of invasive alien plants, this study analyzed the composition and origin of invasive alien plants on 77 islands in Fujian. The similarity in the distribution of invasive alien plants between islands was assessed using the UPGMA. Moreover, feature selection, best-subset regression, and variance decomposition were performed using 19 environmental variables characterizing climate, anthropogenic disturbance, and landscape/geography, as well as the species richness and growth forms of invasive alien plants. Through the analysis, the main environmental factors affecting the species richness and growth forms of invasive alien plants on the Fujian islands were identified. The results showed 142 species of invasive alien plants in 38 families and 102 genera on 77 islands in Fujian. Annual herbs constituted the most representative growth form of invasive alien plants and tropical America was the main origin of invasive alien plants. The distribution of invasive alien plants across the 77 islands in Fujian showed a high degree of similarity, suggesting a nested pattern in their distribution. The proportions of building and farmland area (BFA), island area (A), and maximum elevation (ME) were the main driving factors of species richness and growth forms for invasive alien plants. In particular, BFA played a key role in driving plant invasion. The results of this study can help establish an early warning mechanism for invasive alien plants and better implement island ecological management, which are important for the protection of subtropical island ecosystems.

Reshaping an issue-based field: assessing the impact of the International Federation of Accountants (IFAC) on the global development aid agenda

PurposeThe paper studies how the International Federation of Accountants (IFAC) positioned itself in the process through which capacity building in developing countries was interpreted and enacted within the global development aid agenda from 1999 to 2016.Design/methodology/approachThe paper is an in-depth case study drawing on a comprehensive analysis of publications, reports and archival materials.FindingsThe paper unveils how IFAC shaped the interpretation of capacity building and its associated practices in a manner aligned with its expansionary aims thereby transforming itself into a prominent actor within, what we term, the capacity building issue-based field. It unpacks the strategies pursued by IFAC as it mobilised economic, social and cultural resources in support of its global capacity building ambitions for the accountancy profession. It reveals how key interactions between actors in the international development exchange field and the professional exchange field of accounting underpinned IFAC’s infiltration of, and impact on the evolution of, the capacity building issue-based field. We show how IFAC increased its influence in this field despite initially operating on the periphery of the global development aid agenda.Practical implicationsThe paper reveals how the global accountancy profession’s engagement with the capacity building activities of international development agencies became central to its commitment to serving the public interest. Our analysis suggests that deeper explorations of capacity building by the global accountancy profession in specific developing countries are required in order to determine whether these efforts have effectively catered to the needs of the citizens of those countries.Originality/valueThe work of professional accountancy organizations (PAOs) operating at the global level in the area of capacity building has been addressed in a fragmented fashion in prior research. This paper presents a unique analysis of developing alliances between the global accountancy profession and international aid agencies aimed at supporting the globalising efforts of IFAC within the realm of capacity building in international development aid. Theoretically, the paper advances prior work exploring the evolution of issue-based fields, in particular the role of inter-field relations in interstitial spaces within these processes.

Exploring the impact of HCI on smart buildings: A comprehensive literature review on user experience and sustainability

This paper provides insights into the application of human-computer interaction (HCI) principles in the field of smart building design, particularly their impact on improving occupant comfort, building energy efficiency, and the user interaction experience. The research context focuses on advances in HCI and the importance of smart buildings in enhancing quality of life and sustainability. The research theme focuses on how HCI principles can be utilized to improve the user interface design of smart buildings in order to promote more effective user-building system interactions. Through an extensive review of existing literature in the area of HCI and smart buildings, including recent research papers, case study reports, and technical overviews, this study concentrates on analyzing examples of HCI applications in smart lighting, temperature control systems, and energy management. Through this comprehensive literature review, this paper aims to illustrate how HCI principles can provide theoretical and practical guidance for the design of more humanized, interactive and environmentally friendly smart buildings, thereby providing insights and recommendations for future smart building design and research.

Designing Pocket Park at Dense Building Area with Micro Climate Approach

Pocket parks can create new public spaces without needing large-scale redevelopment, usually smaller than one hectare and created in densely developed urban areas. This research aims to improve the community's standard of living, creating a more comfortable environment for humans and the environment. This research focuses on the design of pocket parks in dense building areas with the concept of microclimate. Data is collected from field observations. The design results are expected to provide an understanding of the role of pocket parks in dense neighborhoods and guide future park planning and management.

Reconstruction and Protection of Industrial Building Area: A Case Study of Beijing Shougang Park

Reconstruction and Protection of Industrial Building Area: A Case Study of Beijing Shougang Park

Applying the Association of Australasian Acoustical Consultants (AAAC) guideline for acoustic assessment of gymnasiums and exercise facilities to field measured heavy hard impact data.

In this paper we apply the newly published Association of Australasian Acoustical Consultants (AAAC) Guideline for Acoustic Assessment of Gymnasiums and Exercise Facilities to field measured heavy hard impact data. ISO and ASTM have working groups developing standards with regards to heavy, hard impact noise. There is an industry need for a single number rating or other evaluation system "to assess the noise and vibration impact resulting from the use and operation of both existing and proposed gymnasiums and exercise facilities consistently, accurately and fairly." Lmax sound pressure levels resulting from 22.7 kg weight drops from 150 mm height were collected in a concrete building on numerous gym flooring build ups in two different adjacencies. AAAC guidelines are applied, and single number ratings reported. The AAAC metric is compared to other existing guidelines and metrics. This brings to light the need for a comprehensive ASTM guideline for assessing structure borne noise associated with fitness areas in mixed use buildings.

Knowledge, attitude and practice of caries prevention in children among Bhutanese oral health professionals.

Dental caries remains prevalent among children in Bhutan, despite an increasing number of oral health professionals (OHPs). Insights into caries preventive practices among OHPs can identify areas for capacity building. This cross-sectional descriptive study assessed the knowledge, attitude and practice of caries prevention in children among OHPs in Bhutan. A self-administered online questionnaire was sent to all active registered OHPs. The respondents included 73 dentists and 61 dental hygienists (88% response rate) with a mean experience of 8.4 ± 7.1 years. Many practitioners rarely saw children; most of them, however, exhibited a positive attitude towards caries prevention in children, yet lacked knowledge and practice, especially in younger children. Caries risk factors were not all recognized, and assessment was not practised. Many forms of fluoride were available, but their efficacy was underestimated. Fluoridated toothpaste was underutilized in younger children. Preventive practice relied mainly on giving advice. The most common limitations on preventive practice were the unavailability of materials and treatment prioritized over prevention. Caries prevention in Bhutanese children requires a systematic approach in the oral healthcare system and further education of OHPs. Proactive strategies, time management and efficient distribution of preventive materials could promote better practice.

Estimation of the Hazardous Chemical Leakage Scale Inside Buildings Using CFD

Increased industrialization and aging infrastructure have resulted in leaks of hazardous chemicals, such as CO. Leak modeling is crucial to developing emergency response strategies. Therefore, we simulated the time to criticality (TTC), which is the time to reach the threshold limit for occupational exposure, of a CO leak. The basis of the study is a fire dynamics simulator, a computational fluid dynamics model that was used to investigate the movement of CO in various scenarios, including using different building layouts and areas, temperatures, and leak diameters. Multiple regression analysis was performed to obtain regression equations for the TTC as a function of the independent variables. Ultimately, we found that the type of dispersion varies with respect to the temperature-dependent density of CO, and, among the independent variables, the leak diameter had the strongest effect on the TTC. The regression equations with logarithmic conversion were validated and found to have higher accuracy than those without logarithmic conversion. The findings provide useful information for developing emergency response plans regarding leak size in the case of hazardous chemical leakage. However, empirical studies of different gas types and leakage scenarios are required.

Improving cross-axis wind turbine performance: A Lab-scale investigation of rotor size and blades number

Horizontal and vertical-axis wind turbines have long been used to generate electricity in open areas by utilizing horizontal wind flow. Under certain conditions, for example in multi-storey building areas, wind flows not only from horizontal but also vertical directions. Therefore, this research aims to develop a new turbine model known as a cross-axis to capture wind flow from horizontal and vertical directions around multi-storey buildings. Design, production, testing, and performance analysis are carried out in this project. The model is designed with a rotor diameter of 700 mm which has 5 vertical blades and 10 horizontal blades with a total height of 600 mm which is divided into two configurations, upper and lower. Performance analysis was carried out using a wind tunnel in a conditioned laboratory both in loaded and unloaded conditions. The output power of the wind turbine is measured using an electric dynamometer. The no-load test was applied to determine the time required to move from non-rotating to constant rotation at different speeds and horizontal blade angles. Meanwhile, the load test is used to determine the power coefficient at various speeds, horizontal blade pitch angles, and loads. The research results show that the time required to move from a non-rotating speed to a constant speed is influenced by the wind speed and the blade pitch angle. The power coefficient was also observed to be influenced by wind speed, blade pitch angle, and load. Furthermore, the shortest time to reach a constant rotation speed is around 20 seconds at a wind speed of 7.6 m/s and a blade pitch angle of 25°. The maximum power coefficient of the wind turbine was obtained at 5.2% at a wind speed of 7.6 m/s, blade pitch angle of 25°, and tip speed ratio of 0.5.

Indoor Air Quality and Personnel Satisfaction in Different Functional Areas of Semi-Underground Buildings

Indoor Air Quality and Personnel Satisfaction in Different Functional Areas of Semi-Underground Buildings

Refining urban morphology: An explainable machine learning method for estimating footprint-level building height

Fine-grained 3D buildings with diverse morphology are a cornerstone of urban physical structures and have profound implications for sustainable city development. However, accurately estimating building height at the footprint-level is a challenge. This study bridged this gap by using random forest models to integrate the elevation, geometry and shape attributes of individual buildings, further refining those with spatial aggregation. It considered over one million buildings across 10 large Chinese cities and trained two-types models that demonstrated commendable performance in city-specific (the mean absolute error (MAE) ranged from 3.43 m to 5.06 m) and combined (MAE = 4.68 m) models. Results revealed that the current dataset had a finer urban morphology compared with existing datasets and showed outstanding generalisability in method transfer and feature ablation tests. By incorporating Shapley values, we explored the features' global and local impacts. The explainable results demonstrated that building area was the most impactful feature, and the elevation-dimension features were particularly beneficial in estimating high-rise buildings. Using the fine-grained 3D buildings, we explored the connections between explicit morphology differences and implicit contexts in cities. Overall, our work is an endeavour to estimate footprint-level building height as fuel for refining urban morphology and enabling sustainable city studies.

Psychological Effects of a Living Wall System on Office Occupants: A Comparative Study Based on Physiological Responses

A Living wall system (LWS) is a biophilic design element that has been introduced into indoor environments in recent years. Previous studies have demonstrated that the LWS improves indoor visual comfort and air quality. However, studies on its psychological effects on occupants are still scarce. In this paper, the psychological effects were investigated by recording and analyzing the parameters of occupants’ physiological responses including an electroencephalogram (EEG) and heart rate variability (HRV). A cross-over experiment was conducted among 43 participants under three different desk work environments based on various materials involving an LWS, a fake LWS, and a bare white wall. The results conclude that LWSs effectively reduce the accumulation speed of negative psychological states caused by desk work to about 1/3, compared with a regular office environment without an LWS. However, occupants tend to be less excited and focused after resting in the LWS environment. Therefore, it is recommended to place LWSs in the rest area rather than close to the desk area in an office building, considering the balance between mental health and work efficiency.

Monitoring and Cause Analysis of Land Subsidence along the Yangtze River Utilizing Time-Series InSAR

Time-series monitoring of the land subsidence in the Yangtze River coastal area is crucial for maintaining river stability and early warning of disasters. This study employed PS-InSAR and SBAS-InSAR techniques to monitor the land subsidence along the Yangtze River in Nanjing, using a total of 42 Sentinel-1A images obtained between April 2015 and November 2021. The accuracy of both methods was compared and validated, while a comprehensive analysis was conducted to ascertain the spatial distribution characteristics and underlying causes of land subsidence. The maximum deviation between the two methods and six leveling point data did not exceed ±5 mm. Within the 5 km buffer zone on either side of the Yangtze River in Nanjing, four subsidence funnels were identified. Analysis of the factors contributing to land subsidence in this area indicates that underground engineering construction and operation, increasing ground building area, and geological condition all have certain correlations to the land subsidence. The results obtained through PS-InSAR and SBAS-InSAR technologies revealed a high degree of consistency in monitoring outcomes, and the latter method exhibited superior monitoring accuracy than the former one in this area. This study holds significant implications for guiding the scientific management of urban geohazards along the Yangtze River.

EVALUATION OF INTERACTIVE SPACES FOR ENHANCED LEARNING IN ARCHITECTURE DEPARTMENT BUILDINGS IN NIGER STATE, NIGERIA

The design studio is still the focal point of curricular programmes in architectural faculties around the world, and it is regarded as the gold standard for architectural design education. However, the architecture studio's primary role in the existing academic framework of architectural education needs to be reconsidered. As a result, a shift to architecture studio design is required to create an environment that delivers an immersive and collaborative feeling of setting for studio users. The job of architecture is to build and develop places that fulfil the demands of architecture users and the usage of spaces by different individuals and groups of people, just as an architecture design studio is considered as a learning environment and usually a location where interactions occur. This study investigates the methodologies and goals of architectural design for open space facilities that relieve stress in learning environments such as those found on university campuses in a compact urban setting. The literature reviews, along with expert input, indicate strategies for integrating sustainability as the foundation for achieving a functional institutional environment structure for Nigerian schools of architecture; thus, this serves as the foundation for the development of a questionnaire to collect relevant data. Improving quality and service delivery through better interactive space organisation. The findings suggest that architects should incorporate sustainable building areas into their theoretical preparation. According to the study, it is critical to set standards for an alternative design approach that is user-centered while also strengthening the training of student architects by creating more interactive spaces.

Carbon emissions path of public buildings based on LEAP model in Changsha city (China)

China is currently the world's top carbon emitter due to the acceleration of urbanization, the rapid growth of energy consumption and the rise in carbon emissions, with the construction industry leading the three energy sectors in terms of emission reduction potential. Among the various sectors, the construction industry holds immense potential for emission reduction, with public buildings playing a crucial role. In China, the expansion of public building spaces is closely linked to the pace of urbanization and contributes to a rising share of total building area. Public buildings, characterized by high energy usage, offer a great opportunity for energy conservation and emission reduction. Changsha is experiencing rapid growth and change, and the city is becoming more industrialized and urbanized, which leads to a prominent contradiction between energy supply and demand. There is also great potential for energy conservation and emission reduction in public buildings. Additionally, Changsha is an important node city in the Yangtze River urban agglomeration and the middle reaches of the Yangtze River Economic Belt. It is a typical area that has hot summer and cold winter, thus Changsha is selected as the research case to examine the carbon emission path of public buildings. The primary influencing factors of carbon emissions of public buildings in Changsha City are determined by using the LMDI factor decomposition method addition model. The scenario analysis method is adopted to set the two energy consumption forecast scenarios, which are the baseline scenario and the green scenario. Based on LEAP model and GREAT framework structure, the LEAP prediction model is constructed to predict the carbon emissions of public buildings in Changsha City from 2021 to 2035. The Baseline scenario indicates that while carbon emissions from public buildings in Changsha continue to rise, they are expected to decline starting in 2030. The peak carbon emission of 34.279 million tons of CO2 is predicted for 2032. In contrast, the Green scenario reveals a significantly slower growth rate in carbon emissions from public buildings, with the peak carbon emission projected to reach 27.054 million tons in 2030. This aligns with China's national goal. The findings of this study support the accuracy of the long-term prediction of the model, and offer recommendations for energy conservation and emission reduction in Changsha. This study also provides an example and certain guidance for other provinces and cities that have similar development models and climate conditions. Pertinent development strategies serve as a point of reference for other typical hot summer and cold winter regions.

Provenance Studies of Natural Stones Used in Historical Buildings of the Peninsula de Barbanza, Galicia, Spain (North-Western Iberia)

Traditionally, the building stones used in the architectural heritage of Galicia (Spain) during the past were mainly extracted from quarries located in the surrounding areas of the historical buildings. Thus, a great variety of monuments were built with the same type of granite but with different degrees of weathering depending on local conditions, geological context (facies), and period of construction. The main purpose of this work is to evaluate the probable origin of the construction materials of six historical buildings on the Barbanza Peninsula, Galicia (Spain), based on the degree of weathering and petrographic-mineralogical characteristics. The evaluation was performed on six different samples of granite according to the geological context in outcrops of places where there are old quarries. We used X-ray fluorescence spectrometry (XRF), X-ray diffraction (XRD), and petrographic microscopy (PM) to attempt to address whether the origin is really local to the Barbanza Peninsula or whether the stone was brought from more distant places, based on our knowledge of the geological context of the study area. Based on the chemical, textural, and mineralogical analyses obtained, the material used for construction has a local origin and comes from small quarries spread over a wide area within the Peninsula itself. Barbanza-type granite is the most abundant within the geological context of the area and also the most used as a construction material. Other types of granites identified are the Confurco Granite and other granitoids of the Noya complex. The Chemical Alteration Index (CIA) shows low to moderate weathering in the granites, fitting petrographic observations. In monuments, samples show higher concentrations of Na and K due to salt crystallization. They show microcracks due to extraction, cutting, and finishing processes and common alteration processes of the main minerals, such as sericitization of plagioclase and chloritization of biotite. This work consists of a multidisciplinary study focused on the geological perspective for the identification and preservation of historic quarries. Knowledge of the original material also presents a unique opportunity for the restoration and/or reconstruction of monuments, which allows for the maintenance of their conceptual and constructive homogeneity.

Computational Fluid Dynamics Simulation of High-Resolution Spatial Distribution of Sensible Heat Fluxes in Building-Congested Area

Urban areas consist of various land cover types, with a high proportion of artificial surfaces among them. This leads to unfavorable thermal environments in urban areas. Continuous research on the thermal environment, specifically on the sensible heat flux (Qh), has been conducted. However, previous research has faced temporal, spatial, and resolution limitations when it comes to detailed analysis of sensible heat flux in urban areas. Therefore, in this study, a computational fluid dynamics (CFD) model combined with the LDAPS and the VUCM was developed to simulate Qh at one-hour intervals over a 1-month period in an urban area with various land cover types. Model validation was performed by comparing it with measurements, confirming the suitability of the model for simulating Qh. The land cover was categorized into five types: building, road, bare land, grassland, and tree areas. Qh exhibited distinct patterns depending on the land cover type. When averaging the Qh distribution over the target period, buildings, roads, and bare land areas showed a predominance of upward Qh values, while grassland and tree areas displayed dominant downward Qh values. Additionally, even within the same land cover types, slight Qh variations were identified based on their surroundings. The averaged Qh value for building areas was the highest at 36.79 W m−2, while that for tree areas was −3.04 W m−2. Moreover, during the target period, the time-averaged Qh showed that building, road, and bare land areas peaked at 14 LST, while grassland and tree areas exhibited very low Qh values. Notably, buildings reached a maximum Qh of 103.30 W m−2 but dropped to a minimum of 1.14 W m−2 at 5 LST.

Product Design of Vegetable Floss Made from Kluwih (Artocarpus camansi) Fruit

Abstract Increasing awareness of health risks encourages the development of plant-based products to replace the animal products. One of the popular snack foods is floss made from beef or chicken meat. Vegetable floss is a potential product to develop for vegetarian or kids. This study aims to provide a product design of vegetable floss made from kluwih fruit starts from formulation, characterization, scale up in small scale industry, include factory layout, calculation of cost of goods sold as well as business development model that was suitable for vegetable floss market. Notably, this study aims to make vegetable floss without using garlic or shallots in the seasoning, distinguishing it from the previous research of vegetable floss. Human-Centered Design used to match the product with the consumer’s expectations. The vegetable floss formulation and production process were successfully defined after several iteration. The best results had the characteristics of brown color, fibrous, light, and acceptable tastes. The floss had water, ash, protein, fat and carbohydrate contents of 6.05%; 2.29%; 2.07%; 27.80% and 61.79%, respectively, and organoleptic quality of its color and flavor were in the like category. Small scale production was planned with the capacity of 300 kg kluwih fruits per month using a series of machine for peeling, shredding, seasoning preparation, boiling, mixing, frying, oil draining, and packaging. Factory required a building area of 92.31 m2. The cost of goods sold was set at IDR 32,178.8 for 150 g aluminum foil pouch and IDR 12,534.6 for 50 g plastic jar packaging. Business Model Canvas showed the overall business activity of vegetable floss products. Based on the SWOT analysis and matrix, there were 12 alternative strategies that have an effect on improving the element of key partners, key activities, value propositions, customer relationship, customer segments, channels, and revenue streams.