Design Environment Research Articles

Transformable Inspection Robot Design and Implementation for Complex Pipeline Environment

Transformable Inspection Robot Design and Implementation for Complex Pipeline Environment

Data models in ship design and construction – insights from 4D BIM

The lack of a cohesive understanding of a ship product data model, from design to operations, is currently a limiting factor in realizing more efficient ship lifecycle management and design processes. The paper sheds light on the history and gaps in realizing an integrated, interoperable, and multi-domain ship product data model. It also explores practices from BIM (Building Information Modelling) as an inspiration for solutions to overcome challenges related to information modeling, integrated design environment, and 4D engineering and planning.

Comparison of additive main effect–multiplicative interaction model and factor analytic model for genotypes ordination from multi‐environment trials

AbstractAn additive main effects and multiplicative interaction (AMMI) model is used to explore the genotype × environment interaction (GEI) in complete multi‐environmental trials. This model orders genotypes (G) according to their performance across environments (E) on a vectorial plane generated by the first two axes of a principal component analysis (AMMI‐biplot). Alternatively, interaction terms can be regarded as random effects, which can be predicted from linear mixed models using a factor analytic (FA) covariance structure for the GEI terms. Here, an FA‐biplot was obtained by plotting the G and E scores derived from the FA mixed model with complete and incomplete data. The aim of this work was to compare AMMI‐biplot with FA‐biplot for balanced data and then show the impact of the imbalance on the FA‐biplot. The G ordinations were assessed in four scenarios generated using datasets of 3 consecutive years obtained from comparative wheat trials conducted under a complete random block design in different environments across the Argentine network of cultivar assessment. For each scenario, G with the lowest performance in the third year were deleted, one by one, from all sites to generate a scenario with missing G. Although we used different statistical procedures to obtain AMMI‐biplot and FA‐biplot, they showed the same interaction pattern in the case of up to 50% of G dropped from all E in the last year of the multiyear trials. We conclude that the FA‐biplot yields a robust G ordination even when with incomplete datasets.

The Effect of Icon Color Combinations in Information Interfaces on Task Performance under Varying Levels of Cognitive Load

In human–computer interaction interfaces, icons serve as highly symbolic elements that convey information and significantly influence the performance of visual search and other tasks. Thus, the selection of appropriate colors plays a crucial role in the design of human–computer interfaces. This study aimed to investigate the effects of icon color combinations on human visual search task performance across various cognitive load conditions. The experiment was divided into two parts, involving a cognitive load test experiment and an icon search task, wherein the former required participants to select the target icon from 16 de-colored icons, and the latter involved selecting the target icon from 16 color combinations of 8 colors (background colors: black, red, blue, and purple; foreground colors: white, yellow, green, and turquoise). A total of 20 participants (11 females and 9 males, all aged between 18 and 24 years) were recruited for this experiment to perform both tasks sequentially. Through a comprehensive consideration of factors such as the NASA-TLX scale, retrieval time, etc., the experimental results revealed that cognitive load increased with time pressure, resulting in varying optimal color combinations for different cognitive load levels. Additionally, background colors did not affect task response time under different cognitive loads, whereas white foreground color was superior to turquoise foreground color in a medium cognitive load environment. Meanwhile, our results recommend prioritizing white-on-black as the preferred color combination, given that it demonstrated excellent cognitive performance in all three cognitive load environments. Conversely, white-on-blue is not recommended as a color combination for the design of high cognitive load environments. Concerning medium cognitive load environments, yellow-on-red or white-on-purple color combinations were preferred. Finally, in low cognitive load environments, white-on-purple is recommended as the primary color combination. Overall, this study provides a theoretical reference for the future design of interactive interface icons across various contexts.

The updated design of university libraries in the digital era

AbstractWith the rise of the digital era, digital reading and learning have become widespread. University libraries, as core locations for study and communication, face challenges in fully meeting the demands of modern teaching and learning. This paper takes the library at the Changqing campus of Shandong University of Arts as a case study to explore the environmental space design of constructed libraries in the digital era. By reviewing relevant concepts and theoretical frameworks, analyzing the existing environment, and researching intervention design methods, the paper discusses the positive role of adapting to the digital future in renovating established library spaces.

A Review of Olfactory Display Designs for Virtual Reality Environments

The field of Virtual Reality continues to evolve to provide an ever-greater sense of immersion to the user. However, VR experiences are still primarily constrained through the human senses of vision and audition, with some interest in haptic (mainly vibrotactile) applications. Only recently have olfactory displays- technologies that generate and deliver scent stimuli- been examined to provide the sense of smell to the human olfactory organ in virtual environments. This paper presents a classification and review of olfactory-enhanced virtual reality systems, particularly those that deployed a Head-Mounted Display (HMD) or Cave Automatic Virtual Environment (CAVE) system. In addition, the paper provides a discussion of the various technological and design challenges for developing an olfactory display suitable for enhancing virtual reality experiences. Finally, the paper proposes future perspectives on the field and includes a table summarizing the characteristics and features of the reviewed systems.

A Structured Literature Review on the Research and Design of Rehabilitation Environments.

This literature review is conducted to identify knowledge gaps and shape a framework for the development of guidelines and future research on programming and design of rehabilitation environments. Patients suffering from trauma, stroke, neurological or cardiopulmonary conditions, or recovering from surgery or cancer treatment require rehabilitation services. A comprehensive rehabilitation program can support continuum of care for inpatient and outpatient groups. However, within most facilities, rehabilitation environments are found to be outdated and undersized compared to other programs or lack the correct adjacencies within the facility. Unfortunately, this deficiency is echoed by limited guidelines on programming, planning, and design of these environments. General guidelines derived from healthcare environments research is not adaptable to rehabilitation environments, because the paradigm used in most healthcare environment research does not address specific needs of rehabilitation patients in regaining confidence or relearning daily life skills. We conducted a structured literature review, using Preferred Reporting Items for Systematic Reviews and Meta-Analyses as a basis for reporting the available body of work on evidence-based research in rehabilitation environments. Through analysis of the limited literature, specific mediators such as patient confidence and motivation were identified. An environment that creates a balance between privacy and social interaction can promote these mediators. Creating enriched environments through elements that engage the senses and encourage more social and physical interaction is essential for recovery. Finally, accessibility and wayfinding are of great importance in these environments due to potential limited mobility or cognitive impairments of patients.

Nature-Based Design in Stroke Rehabilitation Environments: A Scoping Review.

To identify, examine, and map the characteristics of knowledge of nature-based design in stroke rehabilitation facilities, examine how research in this field has been conducted and identify gaps in knowledge. Many stroke survivors have wide ranging impacts, resulting in long hospital stays to undertake rehabilitation. The physical environment can influence brain recovery; however, there is limited evidence to support the design of effective rehabilitation environments. Conversely, the health benefits available from connection with nature are well established. A nature-based design approach may have benefits and implications for the physical environment of inpatient stroke rehabilitation facilities; however, it is unclear what evidence exists in this field. This scoping review followed the JBI methodological guidance for the conduct of scoping reviews, with systematic searches of six databases. Twenty-eight studies were included in the review. Aims and research methods varied widely. Investigations in 19 studies related to gardens and other designed outdoor nature-based environments. Other studies explored natural analogues, nature inside, inside/outside connections, and the natural environment. Findings from the studies were spread across the fields of design, use, exposure to, and engagement in nature-based environments. The characteristics of knowledge underpinning nature-based design in stroke rehabilitation environments are highly diverse, and significant gaps exist in the evidence base. A framework developed during this review for mapping knowledge on the intentions and impacts for spaces and services in this field assisted to identify these gaps and may be applied to other areas of healthcare design research.

Deceived by Immersion: A Systematic Analysis of Deceptive Design in Extended Reality

The well-established deceptive design literature has focused on conventional user interfaces. With the rise of extended reality (XR), understanding deceptive design’s unique manifestations in this immersive domain is crucial. However, existing research lacks a full, cross-disciplinary analysis that analyzes how XR technologies enable new forms of deceptive design. Our study reviews the literature on deceptive design in XR environments. We use thematic synthesis to identify key themes. We found that XR’s immersive capabilities and extensive data collection enable subtle and powerful manipulation strategies. We identified eight themes outlining these strategies and discussed existing countermeasures. Our findings show the unique risks of deceptive design in XR, highlighting implications for researchers, designers, and policymakers. We propose future research directions that explore unintentional deceptive design, data-driven manipulation solutions, user education, and the link between ethical design and policy regulations.

Research on the application of improvisation in creative design process

This work explores the evolution of improvisation and its consequences in the design domain, focuses on its applicative value within the design process, dives into the significance of improvisation in design, and presents a team-based creative design framework anchored in improvisation. Utilizing an approach integrating theoretical synthesis and methodological practice, this study comprehensively analyzes team design processes and activities, along with an examination of the challenges encountered by design teams. To investigate how to incorporate improvisation into the design process, this study employs the method of theoretical integration and comprehensive analysis of method practice, summarizes the team design process and design activities, and analyzes the problems and challenges faced by the team design. In the face of problems such as poor communication, lack of motivation, exhaustion of inspiration, and fixed thinking faced by design teams during the creative conception stage, improvisation encourages designers to explore any possible ideas and creates a relaxed and humorous design environment, which can effectively break the fixed thinking of design, expand creative thinking space, promote team cooperation and communication, and improve team collaboration efficiency.

The impact of IEQ in the university lecture theatres on students’ concentration levels in London

Purpose University students’ lecture theatre concentration levels are significantly related to indoor environmental quality (IEQ). The purpose of this study is to investigate the relationship between indoor environmental quality (IEQ) and the self-reported concentration levels of university students during the winter at University College London (UCL), UK. Design/methodology/approach A questionnaire survey and physical measurements were used to assess the IEQ factors affecting students’ concentration levels. Findings The lecture theatre design factor was the most significant factor influencing students’ concentration levels, and the facility environment was more important than the thermal environment, indoor air quality, and acoustic environment in influencing students’ concentration levels in this winter investigation at UCL, UK. Additionally, students prefer a colder thermal environment. The concentration level of students was positively correlated with the indoor air quality and negatively correlated with the acoustic environment. Practical implications Based on model application, this research could provide lecture theatre IEQ design. This research additionally provides an acceptable indoor thermal environment temperature range based on a large sample, which can be used to calibrate a student performance benchmark. Originality/value As this study evaluates the IEQ factors that influence the concentration levels of university students, interior designers and engineers should consider the rational layout of these factors. Therefore, this study may provide a reference for the interior environmental design of lecture theatres in educational buildings.

Searching for a Cheap Robust Steering Controller

The study of lateral steering control for Automated Driving Systems identifies new control solutions more often than new control problems. This is likely due to the maturity of the field. To prevent repeating efforts toward solving already-solved problems, what is needed is a cohesive way of evaluating all developed controllers under a wide variety of environmental conditions. This work serves as a step in this direction. Four controllers are tested on five maneuvers representing highways and collision avoidance trajectories. Each controller and maneuver combination is repeated on five sets of environmental conditions or Operational Design Domains (ODDs). The design of these ODDs ensures the translation of these experimental results to real-world applications. The commercial software, CarSim 2020, is extended with Simulink models of the environment, sensor dynamics, and state estimation performances to perform highly repeatable and realistic evaluations of each controller. The results of this work demonstrate that most of the combinations of maneuvers and ODDs have existing cheap controllers that achieve satisfactorily safe performance. Therefore, this field’s research efforts should be directed toward finding new control problems in lateral path tracking rather than proposing new controllers for ODDs that are already solved.

EquiCity game: a mathematical serious game for participatory design of spatial configurations

We propose a mathematical framework for developing social-choice games that are designed to mediate decision-making processes for city planning, urban area redevelopment, and architectural configuration of urban housing complexes. The proposed framework features a digital serious gaming approach for participatory design to support transparency and inclusion in the process of decision-making and ensure an equitable balance of sustainable development goals in spatial design outcomes. The mathematical process consists of a Markovian design machine for balancing the design decisions of actors, a massing configurator equipped with fuzzy logic and multi-criteria decision analysis, algebraic graph-theoretical accessibility evaluators, and automated solar-climatic evaluators using geospatial computational geometry. We demonstrate the effectiveness of the framework by implementing a multi-player online game that facilitates a participatory decision-making workshop for forming multi-functional building complexes by providing a generative configurator equipped with automated appraisal/scoring mechanisms for revealing the aggregate impact of alternatives. The EquiCity game empowers a group of decision-makers to reach a fair consensual spatial design by mathematically simulating many rounds of reasonable trade-offs between their decisions, with different levels of interest or control over various types of investments. The novelty of the framework is in its capability to encompass decision-making about the most idiosyncratic aspects of a site related to its heritage status and cultural significance to the most generic aspects such as balancing access to sunlight for the site while respecting ‘the right to sunlight’ of the neighbours of the site, ensuring coherence of the entire configuration with regards to a network of desired closeness ratings, the satisfaction of a programme of requirements, and intricately balancing individual development goals in conjunction with communal goals and environmental design codes.

Role Of Cities in NCD Prevention and Management: A Qualitative Research Study among Doctors

Background: Noncommunicable diseases (NCDs) such as diabetes, hypertension, and cardiovascular diseases are major global health concerns, surpassing the mortality rates of communicable diseases. These conditions pose significant challenges to global development, particularly in low- and middle-income countries where two-thirds of NCD-related deaths occur. In Pakistan, NCDs account for nearly 25% of all fatalities. The prevention of NCDs requires continuous lifestyle modifications, and evidence suggests that the physical environment and urban design play crucial roles in influencing health behaviors and outcomes. Objective: This study aimed to assess doctors' perspectives on the role of cities in the prevention and management of NCDs in Pakistan, and to identify barriers and enablers to the development of healthy city policies. Methods: This descriptive exploratory study employed a qualitative approach, conducted at various private hospitals in the Twin Cities. A purposive sample of approximately 20 doctors from medical units and outpatient departments participated in focus group discussions (FGDs). Data were collected using a semi-structured interview guide, and the FGDs were audio-recorded with participants' consent. Thematic analysis was performed to identify major themes and subthemes related to the role of urban environments in NCD prevention and management. Results: Participants recognized the importance of physical activity, healthy environments, and lifestyle modifications in preventing NCDs. Key barriers to physical activity included socio-cultural norms, environmental limitations, and political/legislative challenges. Facilitators included individual willpower, health-seeking behavior, supportive policies, and perceived benefits. Poor air quality and the lack of green spaces were significant contributors to the increased prevalence of NCDs. Participants emphasized the need for government intervention to improve urban infrastructure, promote physical activity, and enhance public health initiatives. Conclusion: Well-planned cities can significantly reduce the burden of NCDs by addressing modifiable risk factors. Governments must prioritize the development of infrastructure that promotes physical activity, improves air quality, and increases access to green spaces. Comprehensive multisectoral strategies are essential to combat the rising threat of NCDs, particularly in rapidly urbanizing areas.

SM-BIM: A NEW CONCEPTUAL FRAMEWORK FOR MULTI-CRITERIA DECISION-MAKING PROCESS BASED ON SMART MATERIALS AND BUILDING INFORMATION MODELING

ABSTRACT Because the construction sector exerts a considerable environmental effect, especially on building materials, a growing interest in environmental design and construction has emerged. The United Nations has set sustainable development goals (SDGs) for 2030 to protect the environment, including energy conservation and doubling the global rate of improving energy efficiency, because building materials significantly affect energy consumption. Thus, building-material selection at the initial design phase is critical, and random selection of building materials often involves subjectivity, uncertainty, and ambiguity. This process costs time and resources while resulting in the inefficient environmental performance of buildings. Therefore, this study proposes the use of building-information modeling (BIM) as a tool because of its importance in attaining sustainability to aid in the selection process of smart materials (SMs) based on specified criteria and make the selection process faster and more accurate. This method is accomplished through a theoretical study of SMs and using a conceptual framework through four phases for multicriteria decision-making to improve energy efficiency and reduce the energy consumption of buildings. To pursue SDG 7, a theoretical and deductive approach is used.

Advancements in Text-to-Image Generation through Generative AI

Text-to-image generation, a fascinating intersection of natural language processing and computer vision, has witnessed remarkable progress in recent years. This research paper provides a comprehensive review of the state-of-the-art techniques, challenges, and applications in the field of text-to-image generation. The paper aims to analyze various approaches, discuss their strengths and limitations, and highlight potential directions for future research. Generative Artificial Intelligence (Generative AI) has revolutionized the fusion of textual information and visual content, giving rise to sophisticated Text-to-Image generators. In this context we will discuss dynamic landscape of Generative AI-driven text-to-image synthesis, exploring the state-of-the-art models, underlying architectures, and the impact of training strategies on the quality of generated images. The paper provides a comprehensive overview of Training strategies, encompassing dataset selection and fine-tuning approaches, are scrutinized for their impact on model performance. Common challenges, such as handling ambiguous textual descriptions and ensuring the avoidance of mode collapse, are addressed, offering insights into potential avenues for improvement. Training strategies, encompassing dataset selection and fine-tuning approaches, are scrutinized for their impact on model performance. Common challenges, such as handling ambiguous textual descriptions and ensuring the avoidance of mode collapse, are addressed, offering insights into potential avenues for improvement. Applications of Generative AI text-to-image generators are explored, ranging from content creation to virtual environment design, highlighting their versatility and real-world utility. Ethical considerations surrounding potential misuse, including the creation of deepfakes, are examined to foster a balanced understanding of the technology's societal implications. The research paper concludes with a forward-looking exploration of future directions in Generative AI text-to-image generation. Emphasizing the transformative potential of this technology, the paper envisions advancements in model architectures, training methodologies, and emerging applications, inviting researchers and practitioners to contribute to the ongoing evolution of this exciting field.

A space marching method for sonic boom near field predictions

The conventional sonic boom propagation prediction method widely adopted in supersonic aircraft design involves a two-step procedure. In the first step, a compressible viscous or inviscid Computational Fluid Dynamics analysis is applied to the aircraft geometry at flight conditions to produce a flow field solution near the aircraft. Then in the second step, a one dimensional nonlinear Burgers’ equation model is used to propagate sonic boom signature traces from the near field solution at flight altitude to the ground along a ray path. For an accurate ground signature prediction the near field signature must be accurately modeled at a sufficient distance from the aircraft flight path in order to minimize errors in the one dimensional propagation model. This is a very challenging task for general purpose CFD tools in a design environment because the cost of maintaining highly accurate off-body solutions increases dramatically as the radial distance is enlarged in the computational domain. It is also particularly difficult to apply these tools for wave propagation because the algorithms are normally lower order and numerically dissipative and dispersive. In this work a space marching procedure based on an optimized higher order finite difference method is developed and applied in conjunction with a CFD solution concentrated in the close vicinity of the aircraft. This new approach is much more efficient, compared to previous methods, in providing highly accurate near field signatures for full carpet ground predictions. Results indicate that near field signatures retain more waveform shape information farther from the aircraft geometry while reducing the CFD cost significantly. The predicted ground signature is also shown to converge in shape as the radial distance of the near field signature grows, which is indicative of a more ideal initial condition being supplied to the one dimensional wave propagation to ground. This feature is very difficult to replicate in a tractable manner with common CFD approaches used in design.

Environmental Design on Site-Specific Energy Solidary Communities around Public High Schools in the Metropolitan Area of Naples (Italy)

Renewable energy communities (RECs) around photovoltaic systems on public buildings are optimal solutions to counter energy poverty, ensuring all stakeholders access to cheap, reliable, sustainable, and modern energy systems. As the neighborhood is the minimum suitable unit for the implementation of highly sustainable settlements, this article discusses the potential and criticality of RECs at this scale in southern Italy. Starting with the concept of RECs, this study presents a methodology to size sustainable urban communities around school buildings. It integrates practical energy indicators with those defining performance in vegetation and water management. The impact of these factors is analyzed to identify the ideal community size in terms of energy efficiency, economic value, and social cohesion. An interactive scorecard ranks high school sites suitable for transformation into community hubs, taking into consideration the scale of substation distribution. The findings provide empirically validated operational guidelines and best practices to support the transition to smart, efficient, and socially inclusive communities. At the urban scale, the analysis evaluates different urban morphologies, microclimates, characteristics and density of buildings, and population around each assumed community hub. The study provides valuable guidance to local designers, planners, and administrators for the implementation of sustainable technologies by preparing a map of potential RECs.

Sustainable Tourism Infrastructure Development

This study looks at the development of sustainable tourist infrastructure, focusing only on physical factors. In terms of resource efficiency and environmental sustainability, planning, design, and management techniques are assessed through a review of the literature and case studies. In order to pinpoint problems and offer viable solutions, the research carefully examines how much energy, water, garbage, and transportation systems are used. The report promotes minimising environmental effect and optimising resource conservation in tourism infrastructure projects by highlighting eco-friendly technology and design ideas. Innovative strategies, such as the use of sustainable construction materials, integrated renewable energy, water-saving techniques, and effective transportation systems, are demonstrated in successful case studies. The research prioritises physical factors to ensure lowest ecological impact and long-term environmental resilience, advocating for sustainable tourist infrastructure by integrating theoretical and practical insights. The findings contribute to advancing sustainable development goals within the tourism sector, offering actionable recommendations for policymakers, planners, and developers to create destinations in harmony with natural surroundings. Keywords— Sustainable tourism, Tourism infrastructure, Physical parameters, Water usage, Waste management, Transportation systems

Harmonizing design and desire: Unveiling user-centered requirements for university buildings

The design of university buildings plays a critical role in users' productivity, health, and behavior. The design should incorporate end users' and architects' perceptions to prevent decreased satisfaction, productivity, and health issues. Meeting user needs and preferences is essential for creating functional buildings that cater to their requirements. However, user needs change over time, and research does not clearly define user-centered requirements in the design of university buildings. This study addresses the unclear definition of user-centered design requirements for university buildings, essential for ensuring spaces effectively meet evolving user needs. Aiming to identify these requirements and the challenges of integrating them into architectural design, two parts of the survey were conducted with 59 participants, including end-users from 11 academic institutions and architects in Egypt. The survey revealed a consensus on the importance of aesthetics, functionality, and indoor environmental quality. From the results, a satisfaction model for university buildings was developed, highlighting design attributes valued by users and architects alike. This model facilitates overcoming design challenges, thereby proposing a path towards creating functional, user-satisfying university spaces. This study's findings underscore the necessity of merging architectural practices with dynamic user expectations, contributing to the discourse on user-centered design in educational environments.