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This study aims to improve the acceleration in the additive manufacturing (AM) process. AM tools, such as extrusion heads, jets, electric arcs, lasers and electron beams (EB), experience negligible forces. However, their speeds are limited by the positioning systems. In addition, a thin tool must travel several kilometers in tiny motions with several turns while realizing the AM part. Hence, acceleration is a more significant limiting factor than the velocity or precision for all except EB.

The sawtooth (ST) scanning strategy presented in this paper minimizes the time by combining three motion features: zigzag scan, 45º or 135º rotation for successive layers in G00 to avoid the CNC interpolation, and modifying these movements along 45º or 135º into sawtooth to halve the turns.

Sawtooth effectiveness is tested using an in-house developed Sand AM (SaAM) apparatus based on the laser–powder bed fusion AM technique. For a simple rectangle layer, the sawtooth achieved a path length reduction of 0.19%–1.49% and reduced the overall time by 3.508–4.889 times, proving that sawtooth uses increased acceleration more effectively than the other three scans. The complex layer study reduced calculated time by 69.80%–139.96% and manufacturing time by 47.35%–86.85%. Sawtooth samples also exhibited less dimensional variation (0.88%) than zigzag 45° (12.94%) along the build direction.

Sawtooth is limited to flying optics AM process.

Development of scanning strategy for flying optics AM process to reduce the warpage by improving the acceleration.

The purpose of this study is to investigate and analyse the potential of existing buildings in the UK to contribute to the net-zero emissions target. Specifically, it aims to address the significant emissions from building fabrics which pose a threat to achieving these targets if not properly addressed.

The study, based on a literature review and ten (10) case studies, explored five investigative approaches for evaluating building fabric: thermal imaging, in situ U-value testing, airtightness testing, energy assessment and condensation risk analysis. Cross-case analysis was used to evaluate both case studies using each approach. These methodologies were pivotal in assessing buildings’ existing condition and energy consumption and contributing to the UK’s net-zero ambitions.

Findings reveal that incorporating the earlier approaches into the building fabric showed great benefits. Significant temperature regulation issues were identified, energy consumption decreased by 15% after improvements, poor insulation and artistry quality affected the U-values of buildings. Implementing retrofits such as solar panels, air vents, insulation, heat recovery and air-sourced heat pumps significantly improved thermal performance while reducing energy consumption. Pulse technology proved effective in measuring airtightness, even in extremely airtight houses, and high airflow and moisture management were essential in preserving historic building fabric.

The research stresses the need to understand investigative approaches’ strengths, limitations and synergies for cost-effective energy performance strategies. It emphasizes the urgency of eliminating carbon dioxide (CO₂) and greenhouse gas emissions to combat global warming and meet the 1.5° C threshold.

This account becomes both a theoretical and a methodological exploration of walking with the law; as such the purpose of the paper is to demonstrate how we migh walk in order to attend to how the law makes the built environment possible, how it shapes and creates places to be lived in, visited and experienced and how the law manifests in human encounters and interactions in the everyday life of the city.

In this study, the authors combine a walking narrative approach with an open-ended interview to raise awareness of the law’s hidden presence in the urban environment. The authors explore the city of Sheffield, in Yorkshire, in the North of England, to learn about its past, regeneration and future development by combining the appreciation of the built environment, as experienced by the senses and movement, with a guided tour.

This study highlights the interconnectivity of law and place both objectively and subjectively: the authors discuss sensorial experiences of law, and also elaborate on the normativity of law, as manifested in the regulation and the making of urban places in Sheffield.

The originality lies in the combination of methods used to appreciate the manifestation of law in the built environment, comprising interview, autoethnographic elements and walking (multisensory experience).

The study examines the residential facades of the Al-Jadida neighborhood, focusing on the use of geometry and proportion in Aleppo's architectural history during the late Ottoman era. The analysis sheds light on the city's past and provides insights into the way residents utilized space and interacted with their surroundings.

The study involves collecting primary and secondary sources, including historical documents, photographs, and drawings. Visual analysis is employed to examine the facades overlooking the courtyard, with a focus on windows, doors, balconies, and other distinctive features that contribute to the overall courtyard design.

The findings reveal that traditional Aleppine architecture is centered around the courtyard and incorporates decorative openings and windows reflecting Islamic principles. Stone decorations are used with unique designs based on geometry and composition, contributing to Aleppo's cultural identity.

Including more samples for studying facades allows for the identification of changes in architectural styles and the influence of different cultural influences on the city's architecture over time. Moreover, conducting further studies is crucial for preserving this important part of Aleppo's history for future generations.

This research analyzes architectural facades in late Ottoman Aleppo, offering insights for future studies and understanding architectural design development. It also informs preservation efforts for historic buildings, enhancing understanding of architectural features and characteristics.

This study evaluates the architectural status of circular prototype mosques in Kuwait. The argument is that the once dominant and powerful image of mosques is now merely a repetitive reproduction through the prototype scheme. The study focuses on the circular prototype design, which has been constructed in many of Kuwait's recent residential areas. It evaluates qualitatively the worshipers' experiences of these mosques.

The research methodology is qualitative. The main question is how well the circular prototype mosques are received by worshipers and local communities. Various research methods were used, including walk-through survey and group interview with worshipers and semi-structured interview with key informants in Public Authority for Housing Welfare and Ministry of Awqaf and Islamic Affairs. Purposive sampling was chosen to select for key informants. Time-location sampling was selected for worshipers' group interview.

Circular prototype presents several weaknesses. The community did not receive the circular design well as it deviates from the traditional and modern rectangular mosque design prevalent in Kuwait. This research highlights the importance of considering traditional design principles, community preferences and functional requirements while designing a mosque. It also emphasizes the need for an extensive evaluation of prototype designs to identify potential weaknesses before proceeding with the final design.

It is recommended that future mosque design projects in Kuwait consider traditional design principles; community preferences; and financial, functional and sustainability requirements. In addition, the findings of this study can be used to inform future mosque design projects in Kuwait and to ensure that they are functional, cost-effective and well received by the community.

This research provides an informative and comprehensive analysis of Kuwait's prototype mosque designs from the 1950s to the present day. It focuses on the current circular prototype, critically examining its advantages and disadvantages. This research is the first to evaluate the history and design improvements over the years. As such, this research offers invaluable information to those interested in Kuwait's religious architecture and cultural history.

The indigenous and sustainable knowledge possessed by the tribal people and communities plays an extremely important role in the conservation of the climate. As per the United Nations Sustainable Development Goals (UN SDGs), tribal communities play an important role in preserving traditional knowledge, culture, food practices and textiles. The remains of the Indus Valley civilisation highlight the importance of the culture and religion. Animism and the worship of nature to achieve success in routines and tasks have been practised by these tribes for centuries. India is a mosaic of more than 705 different colourful tribes, and each of these tribes has their own identity that differentiates it from the other tribes. With increasing ecological complexities, the knowledge owned by the tribes is extremely useful in the preservation of the climate. This chapter seeks to explore the various hues and colours that constitute the mosaic of Indian tribal culture.

The impact of extreme heat on prisons and carceral facilities is becoming increasingly visible, yet remains overlooked by scholars, practitioners and policymakers. Prisons are a unique type of infrastructure designed to severely limit and control the movement of hundreds and even thousands of individuals as a form of punishment. This leads to many significant challenges to mitigating the risk of heat-related illness in prisons and other carceral spaces that have remained overlooked across many disciplines including emergency management, disasters, corrections and public health.

For this study, we analyzed 192 surveys from incarcerated persons in state prisons throughout Texas to understand how incarceration and the punitive prison environment create challenges to managing extreme heat in prisons.

We found that characteristics of modern incarceration, including communal distribution of resources, crowded conditions and a lack of agency for incarcerated people, create barriers to accessing resources during periods of extreme heat. Furthermore, the punitive nature of the prison environment as manifested in the relationship between staff and incarcerated persons and certain prison policies also create barriers to incarcerated persons accessing resources to reduce their risk of heat-related illness and death.

These issues are particularly relevant to the health and safety of incarcerated persons during periods of extreme temperatures but also speak broadly to the implications of incarceration, disaster risk, and the advancement of human rights for incarcerated people.

This article addresses a gap in the literature by including the perspectives of persons incarcerated in Texas prisons experiencing extreme heat and implicates the characteristics of incarceration and punishment in the production of disaster risk.

Severe inequality from climate change exists between the Global North and Global South. The North significantly contributes to climate change yet retreats to protect itself against its harmful impacts. Conversely, members of the Global South bear the brunt of the climate crisis with limited protection against its destructive effects. Climate justice aims to address this inequality. This paper explores the effects of climate change reforms and policies that have been established to foster accountability and climate justice.

This research follows a qualitative exploratory case study method. It draws on a supply- and demand-led approach and local accounts to analyse the (in)effectiveness with which six national and international reforms and policies have achieved accountability for climate justice. The research analysed a variety of empirical documents including contemporary research, reports, academic literature, non-government and government documents and policies, media releases and Pacific Islander accounts.

Climate change reforms and policies, which come together to form supply-side accountability, have largely failed to engender accountability in the Global North for the impacts of climate change. Nor have they mitigated climate change to any tangible extent at all. This has created a system of modern-day climate apartheid. Improving accountability and remediating climate injustices going forward will require a focus on demand-led instruments and accountability, which includes the voice of citizens.

This paper responds to AAAJ’s special issue call for examining accounting and accountability with regard to environmental and climate racism. Limited research to date explores the issue of climate apartheid and climate justice and its relationship with accountability. This research attempts to fill that gap.