Authors: O. Papazafeiropoulou

Abstract:

The first Greek expatriates created centers of culture in Australia from the beginning of the 19th century, in the large urban centers of the cities (Sydney, Melbourne, Brisbane, Adelaide, Perth). They created community theater according to their cultural standards, their socio-spiritual progress and development and their relationship with theatrical creation. At the same time, the Greek immigrants of the small towns and especially of New South Wales (NSW), created their own temples of art, erecting theater buildings (theatres and cinemas) many of which are preserved to this day. Hellenism in Australia operated in the field of entertainment, reflecting the currents of the time and the global spread of mechanical developments. The Australian-born young people of paroikia, as well as pioneering expatriates joined the theater and cinematographic events of Australia. They mobilized beyond the narrow confines of the community, gaining recognition and projecting Hellenism to the Australian establishment. G. Paizis (A. Haggard), Dimitrios Ioannidis, Stelios Saligaros, Angela Parsellis, Sofia Pergamalis, Raoul Cardamatis, Adam Tavlaridis, John Lemonne, Rudy Ricco, Artemis Linos, distinguished themselves by writing their names in the history of Australian theater. They served consequently the theatrical process, elevating the sentiment of the emigrants during the early years of its settlement in the Australian Commonwealth until the first post-war period. In general, research on Greek theater in Australia up to 1950 highlights the historical and cultural importance of the Greek diaspora in the development of Australian theatre. It highlights the contribution of Greek immigrants to the establishment of community theaters and their impact on wider Australian society. The study recognizes the pioneering individuals who played a major role in the development and recognition of Greek theater in Australia, contributing to cultural exchange and mutual respect between Greeks and Australians.

Keywords: Greeks, Community, Australia, amateur theatre, professional theatre, actors, variety shows, cinema.

Authors: Hadi Rouhi Belvirdi, Davoud Beheshtizadeh

Abstract:

The increasing demand for sustainable construction materials has led to a growing interest in high-strength recycled concrete (HSRC). Utilizing recycled materials not only reduces waste but also minimizes the depletion of natural resources. This study explores the application of artificial intelligence (AI) techniques to model and predict the properties of HSRC. In the past two decades, the production levels in various industries and, consequently, the amount of waste have increased significantly. Continuing this trend will undoubtedly cause irreparable damage to the environment. For this reason, engineers have been constantly seeking practical solutions for recycling industrial waste in recent years. This research utilized the results of the compressive strength of 90-day HSRC. The method for creating recycled concrete involved replacing sand with crushed glass and using glass powder instead of cement. Subsequently, a feedforward artificial neural network was employed to model the compressive strength results for 90 days. The regression and error values obtained indicate that this network is suitable for modeling the compressive strength data.

Keywords: High-strength recycled concrete, feedforward artificial neural network, regression, artificial intelligence.

Authors: Belayneh Matebie, Michael Melese

Abstract:

The study focuses on addressing the challenges in classifying and ensuring the quality of Eragrostis Teff, a small and round grain that is the smallest cereal grain. Employing a traditional classification method is challenging because of its small size and the similarity of its environmental characteristics. To overcome this, the current study employs a machine learning approach to develop a source and quality classification system for Teff cereal. Data are collected from various production areas in the Amhara regions, considering two types of cereal (high and low quality) across eight classes. A total of 5,920 images are collected, with 740 images for each class. Image enhancement techniques, including scaling, data augmentation, histogram equalization, and noise removal, are applied to preprocess the data. Convolutional Neural Network (CNN) is then used to extract relevant features and reduce dimensionality. The dataset is split into 80% for training and 20% for testing. Different classifiers, including Fine-tunned Visual Geometry Group (FVGG16), Fine-tunned InceptionV3 (FINCV3), Quality and Source Classification of Teff Cereal (QSCTC), Ensemble Method for Quality and Source Classification of Teff Cereal (EMQSCTC), Support Vector Machine (SVM), and Random Forest (RF) are employed for classification, achieving accuracy rates ranging from 86.91% to 97.72%. The ensemble of FVGG16, FINCV3, and QSCTC using the Max-Voting approach outperforms individual algorithms.

Keywords: Teff, ensemble learning, Max-Voting, Convolutional Neural Network, Support Vector Machine, Random Forest.

Authors: Hadi Fadaei

Abstract:

The opium poppy plant, known for its significant role in the global drug trade, poses a dual threat to food security and national security. This paper explores the application of remote sensing technology to identify the spectral reflectance characteristics of the opium poppy, aiming to enhance monitoring efforts and inform policy decisions. The increasing prevalence of opium poppy cultivation, particularly in regions where food security is already compromised, necessitates a comprehensive understanding of its spatial distribution and growth patterns. Remote sensing offers a non-invasive and efficient means of collecting data on agricultural practices, enabling the identification of crop types and their health status. By analyzing the spectral reflectance of the opium poppy plant, we can differentiate it from other crops, thereby providing critical insights into its cultivation areas. This capability is essential for developing targeted interventions to mitigate the impacts of illicit opium production on food security and local economies. The methodology involves the use of advanced remote sensing techniques, including satellite imagery and aerial photography, to capture high-resolution spectral data. These data will be processed using sophisticated algorithms to extract relevant features that characterize the opium poppy's reflectance. The analysis will focus on identifying specific spectral signatures associated with the plant at various growth stages, which can be correlated with its physiological characteristics. The findings of this research are expected to contribute significantly to the understanding of opium poppy cultivation dynamics. By establishing a reliable method for detecting and mapping opium poppy fields, policymakers, and law enforcement agencies can enhance their efforts to combat illegal drug production. Furthermore, this research aims to highlight the implications of opium poppy cultivation on food security, particularly in regions where agricultural resources are limited and communities are vulnerable. In conclusion, the integration of remote sensing technology into the monitoring of opium poppy cultivation presents a promising approach to addressing the challenges posed by this plant. By identifying its spectral reflectance characteristics, we can develop effective strategies to mitigate its impact on food security and support counter-terrorism initiatives. This research not only aims to advance the field of remote sensing but also seeks to contribute to broader discussions on agricultural sustainability and security in the face of evolving threats. The outcomes of this study will provide valuable insights for stakeholders involved in food security, law enforcement, and agricultural policy, ultimately fostering a more secure and resilient future.

Keywords: Opium poppy, remote sensing, spectral reflectance, food security, counter-terrorism.

Authors: Khin T. Soe, Mark S. Pulham

Abstract:

Ballistic building materials play a crucial role in ensuring the safety of the occupants within protective structures. Traditional options like Ordinary Portland Cement (OPC)-based walls, including reinforced concrete walls, precast concrete walls, masonry walls, and concrete blocks, are frequently employed for ballistic protection, but they have several drawbacks such as being thick, heavy, costly, and challenging to construct. On the other hand, glass and composite materials offer lightweight and easier construction alternatives, but they come with a high price tag. Those various materials have long been used in protective structures but there are limited data available on ballistic wall panels or modular wall systems made from magnesium-based cement. This paper presents groundbreaking small arms test data related to the development of the world’s first magnesia cement ballistic wall panels and modular wall system. Non-hydraulic magnesia cement exhibits several superior properties, such as lighter weight, flexibility, acoustics, and fire performance, compared to the traditional Portland Cement. However, magnesia cement is hydrophilic and may degrade in prolonged contact with water. In this research, modified magnesia cement for water resistant and durability from UBIQ Technology is applied. The specimens are made of a modified magnesia cement formula and prepared in the Laboratory of UBIQ Technology Pty Ltd. The specimens vary in thickness, and the tests cover various small arms threats in compliance with standards AS/NZS2343 and UL752 and are performed up to the maximum threat level of Classification R2 (NATO) and UL-Level 8 (NATO) by the Accredited Test Centre, BMT (Ballistic and Mechanical Testing, VIC, Australia). In addition, the results of the test conducted on the specimens subjected to the small 12 mm diameter steel ball projectile impact generated by a gas gun are also presented and discussed in this paper. Gas gun tests were performed in UNSW@ADFA, Canberra, Australia. The tested results of the magnesia panels and wall systems are compared with one of concrete and other wall panels documented in the literature. The conclusion drawn is that magnesia panels and wall systems exhibit several advantages over traditional OPC-based wall systems, and they include being lighter, thinner, and easier to construct, all while providing equivalent protection against threats. This makes magnesia cement-based materials a compelling choice of application where efficiency and performance are critical to create a protective environment.

Keywords: Ballistics, small arms, gas gun, projectile, impact, wall panels, modular, magnesia cement.

Authors: Sasala Taiban

Abstract:

This paper explores the process and reflections on the restoration of traditional slate houses in the Rukai tribe's old settlement of Kucapungane. Designated as a "Class II Historical Site" by the Ministry of the Interior in 1991 and listed by UNESCO's World Monuments Fund in 2016, Kucapungane holds significant historical and cultural value. However, due to government neglect, tribal migration, and the passing of elders, the traditional knowledge and techniques for constructing slate houses face severe discontinuity. Over the past decades, residents have strived to preserve and transmit these traditional skills through the restoration and reconstruction of their homes. This study employs a qualitative methodology, combining ethnographic fieldwork, historical analysis, and participatory observation. The research includes in-depth interviews, focus group discussions, and hands-on participation in restoration activities to gather comprehensive data. The paper reviews the historical evolution of Kucapungane, the restoration process, and the challenges encountered, such as insufficient resources, technical preservation issues, material acquisition problems, and lack of community recognition. Furthermore, it highlights the importance of house restoration in indigenous consciousness and cultural revival, proposing strategies to address current issues and promote preservation. Through these efforts, the cultural heritage of the Rukai tribe can be sustained and carried forward into the future.

Keywords: Rukai, Kucapungane, slate house restoration, cultural heritage.

Authors: Vikram Kalekar

Abstract:

Modern Internet Protocol (IP) networks rely heavily on traditional and contemporary Quality of Service (QoS) management mechanisms to ensure the seamless and efficient transmission of network packets during routine operations. The advent of Software-Defined Networking (SDN) has ushered in a new era of network service delivery, characterized by innovative QoS methodologies. While numerous such techniques remain in the experimental phase, a significant subset has undergone rigorous testing within controlled environments, demonstrating promising potential for widespread industrial deployment. This survey endeavors to comprehensively analyze the diverse approaches to QoS and resource allocation within the SDN paradigm. Furthermore, this study seeks to critically evaluate these methodologies and offer insightful commentary on potential avenues for enhancing QoS management within the context of SDN architectures.

Keywords: Congestion, flow management, latency, Quality of Service, QoS, Software-Defined Networking.

Authors: Soniya Takshak, R. K. Sharma

Abstract:

Let q be a prime power and n be a positive integer, Fq stands for the finite field of q elements, and Fqn denotes the extension of Fq of degree n. Also, F∗q represents the multiplicative group of non-zero elements of Fq, and the generators of F∗q are called primitive elements. A normal element of a finite field Fqn is an element α such that the set of α and its all conjugates in Fqn forms a basis for Fqn over Fq. Primitive normal elements have several applications in coding theory and cryptography. So, establishing the existence of primitive normal elements under certain conditions is theoretically essential and a genuine issue. In this article, we provide a sufficient condition for the existence of a primitive normal element α in Fqn of a prescribed primitive norm and non-zero trace over Fq such that f(α) is also primitive, where f(x) is a rational function of degree sum m over Fqn. Particularly, for the rational functions of degree sum 4 over Fqn, where Fq is the field of characteristic 11 and n is greater than or equal to 7, we demonstrated that there are only 3 exceptional pairs (q, n) for which such kind of primitive normal elements may not exist. In general, we show that such elements always exist except for finitely many choices of (q, n). We used additive and multiplicative character sums as important tools to arrive at our conclusion.

Keywords: Finite Field, Primitive Element, Normal Element, norm, trace, character.

Authors: Abubakar Muhammad Umar, Nur Adeela Yasid, Hassan Mohd Daud, Mohd Yunus Abd Shukor

Abstract:

Glyphosate [N-(phosphonomethyl) glycine] is among the most broadly and generally recognised broad-spectrum herbicides used in agriculture due to its low cost and effectiveness in weed management. The pollution of glyphosate in the aquatic environment can be via water run-off from agricultural lands, or by spray drift, aerial spraying or due to industrial discharge, which may be seen as a threat to aquatic biota. Fish is one of the best organisms to study the toxicological aspects of glyphosate. A 49 days experiment was conducted under laboratory conditions to ascertain the effects of technical grade glyphosate on behaviour and histopathological conditions in the gills of red hybrid tilapia using a light inverted microscope. Air gasping, erratic swimming, fin movement, mucus secretion, haemorrhages, and loss of scales were observed as behavioural changes in the exposed fish. There was no histopathological complication observed in the gill of the control fish, but various levels of alterations were seen in the gills of the fish exposed to glyphosate herbicide. These include lifting of primary lamella, congestion of secondary lamella, as well as hyperplasia in both primary and secondary gill lamella, and hypertrophy of secondary gill lamella. Based on the findings of this study, glyphosate herbicide exerts behavioural and histopathological changes in the gill of red hybrid tilapia, and therefore, the fish is considered a good bioindicator in aquatic environment monitoring. Excessive usage of glyphosate herbicide near aquatic habitats should be discouraged.

Keywords: Fish Behaviour, gill histopathology, Oreochromis niloticus, glyphosate.

Authors: Georges Bou Ghantous

Abstract:

This literature review examines the transformative impact of Artificial Intelligence (AI) on higher education, highlighting both the potential benefits and challenges associated with its adoption. The review reveals that AI significantly enhances personalized learning by tailoring educational experiences to individual student needs, thereby boosting engagement and learning outcomes. Automated grading systems streamline assessment processes, allowing educators to focus on improving instructional quality and student interaction. AI's data-driven insights provide valuable analytics, helping educators identify trends in at-risk students and refine teaching strategies. Moreover, AI promotes enhanced instructional innovation through the adoption of advanced teaching methods and technologies, enriching the educational environment. Administrative efficiency is also improved as AI automates routine tasks, freeing up time for educators to engage in research and curriculum development. However, the review also addresses the challenges that accompany AI integration, such as data privacy concerns, algorithmic bias, dependency on technology, reduced human interaction, and ethical dilemmas. This balanced exploration underscores the need for careful consideration of both the advantages and potential hurdles in the implementation of AI in higher education.

Keywords: Administrative efficiency, data-driven insights, data privacy, ethical dilemmas, higher education, personalized learning.

Authors: Lunliang Zhong, Bin Duan

Abstract:

The undergraduate graduation project is a vital part of the higher education curriculum, crucial for engineering accreditation. Current evaluations often summarize data without identifying underlying issues. This study applies the Peter-Clark algorithm to analyze causal relationships within the graduation project data of an Electronics and Information Engineering program, creating a causal model. Structural equation modeling confirmed the model's validity. The analysis reveals key teaching stages affecting project success, uncovering problems in the process. Introducing causal discovery and inference into project evaluation helps identify issues and propose targeted improvement measures. The effectiveness of these measures is validated by comparing the learning outcomes of two student cohorts, stratified by confounding factors, leading to improved teaching quality.

Keywords: Causal discovery, causal inference, continuous improvement, Peter-Clark algorithm, structural equation modeling, SEM.

Authors: Ruyuf Y. Alnafisah, Nouf S. Alammari, Amani S. Alqahtani

Abstract:

Beverage choice can have implications for the risk of non-communicable diseases. However, there is a lack of knowledge in assessing the nutritional content of these beverages. This study aims to describe the nutrient content of pre-packaged beverages available in the Saudi market. Data were collected from the Saudi Branded Food Database (SBFD). Nutrient content was standardized in terms of units and reference volumes to ensure consistency in analysis. A total of 1490 beverages were analyzed. The highest median levels of the majority of nutrients were found among dairy products; energy (68.4 [43-188] kcal/100 ml in a milkshake); protein (8.2 [0.5-8.2] g/100 ml in yogurt drinks); total fat (2.1 [1.3-3.5] g/100 ml in milk); saturated fat (1.4 [0-1.4]g/100 ml in yogurt drinks); cholesterol (30 [0-30] mg/100 ml in yogurt drinks); sodium (65 [65-65] mg/100 ml in yogurt drinks); and total sugars (12.9 (7.5-27] g/100 ml in milkshake). Carbohydrate level was the highest in nectar (13 [11.8-14.2] g/100 ml); fruits drinks (12.9 [11.9-13.9] g/100 ml), and sparkling juices (12.9 [8.8-14] g/100 ml). The highest added sugar level was observed among regular soft drinks (12(10.8-14] g/100 ml). The average rate of nutrient declaration was 60.95%. Carbohydrate had the highest declaration rate among nutrients (99.1%), and yogurt drinks had the highest declaration rate among beverage categories (92.7%). The median content of vitamins A and D in dairy products met the mandatory addition levels. This study provides valuable insights into the nutrient content of pre-packaged beverages in the Saudi market. It serves as a foundation for future research and monitoring. The findings of the study support the idea of taxing sugary beverages and raise concerns about the health effects of high sugar in fruit juices. Despite the inclusion of vitamins D and A in dairy products, the study highlights the need for alternative strategies to address these deficiencies.

Keywords: Pre-packaged beverages, nutrients content, nutrients declaration, daily percentage value, mandatory addition of vitamins.

Authors: Megan Burfoot, Shanta Budha-Magar, Ali Ghaffarianhoseini, Amirhosein Ghaffarianhoseini

Abstract:

Domestic backyards offer a valuable opportunity to contribute to biodiversity conservation efforts and promote ecological sustainability by cultivating native plant species. This study focuses on assessing the presence and maintenance of native plants in New Zealand's residential gardens through an online questionnaire. The survey was designed to collect data on the presence of native, exotic, and lawn plants in New Zealand backyards, alongside the allocation of maintenance resources for each category. Targeting a diverse range of residents and property sizes from different regions of New Zealand, this study sought to gain essential insights into practices related to native plant cultivation. Results reveal there is a collective inclination to reduce lawn coverage and introduce a higher abundance of native and exotic species. A thorough analysis of maintenance practices reveals a significant portion of respondents embracing environmentally friendly gardening, characterized by low-intensity fertilizer usage. Homeowners, especially those residing in their properties, demonstrate proactive engagement in backyard maintenance. Native plants were found to require more time, money and fertilizer for maintenance than those of exotic and lawn species. The insights gained from this study can guide targeted efforts to enhance urban biodiversity, making a significant contribution to the preservation and enrichment of New Zealand's unique biodiversity and ecological heritage in urban settings.

Keywords: Backyards, backyard maintenance, biodiversity, native planting.

Authors: Bastien Batardière, Joon Kwon

Abstract:

For finite-sum optimization, variance-reduced gradient methods (VR) compute at each iteration the gradient of a single function (or of a mini-batch), and yet achieve faster convergence than SGD thanks to a carefully crafted lower-variance stochastic gradient estimator that reuses past gradients. Another important line of research of the past decade in continuous optimization is the adaptive algorithms such as AdaGrad, that dynamically adjust the (possibly coordinate-wise) learning rate to past gradients and thereby adapt to the geometry of the objective function. Variants such as RMSprop and Adam demonstrate outstanding practical performance that have contributed to the success of deep learning. In this work, we present AdaLVR, which combines the AdaGrad algorithm with loopless variance-reduced gradient estimators such as SAGA or L-SVRG that benefits from a straightforward construction and a streamlined analysis. We assess that AdaLVR inherits both good convergence properties from VR methods and the adaptive nature of AdaGrad: in the case of L-smooth convex functions we establish a gradient complexity of O(n+(L+√nL)/ε) without prior knowledge of L. Numerical experiments demonstrate the superiority of AdaLVR over state-of-the-art methods. Moreover, we empirically show that the RMSprop and Adam algorithm combined with variance-reduced gradients estimators achieve even faster convergence.

Keywords: Convex optimization, variance reduction, adaptive algorithms, loopless.

Authors: Juanling Lin

Abstract:

The construction of urban parks is an important part of eco-city construction, and the intervention of big data provides a more scientific and rational platform for the assessment of urban parks by identifying and correcting the irrationality of urban park planning from the macroscopic level and then promoting the rational planning of urban parks. The study builds an urban park assessment system based on urban road network data and points of interest (POI) data, taking Futian District of Shenzhen as the research object, and utilizes the GIS geographic information system to assess the park system of Futian District in five aspects: park spatial distribution, accessibility, service capacity, demand, and supply-demand relationship. The urban park assessment system can effectively reflect the current situation of urban park construction and provide a useful exploration for realizing the rationality and fairness of urban park planning.

Keywords: Urban parks, assessment system, POI, supply and demand.

Authors: Ilma Robo, Manola Kelmendi, Klevis Elezi, Nevila Alliu

Abstract:

The most important stage in deciding whether to re-treat or not endodontically is to find the reason for the clinical in-success. Therefore, endodontic re-treatment aims to eliminate the etiology of the pathology, where the main ones are the bacteria remaining in the inter-radicular spaces, or the presence of other irritants that can be not only bacterial toxins but also the elements that keep the batteries fixed or extra-canal toxins such as extraction outside the apex of the canal filling. Shortcomings of endodontic treatment can be corrected, if possible, only with endodontic re-treatment that is initially attempted orthograde and if clinical endodontic success is not achieved again, it can be performed retrograde, or surgically. The elements that do not help in this direction are the anatomical deformations in the canal network of the tooth roots, in the presence of the delta at the apex of the tooth root, in the isthmuses present, all of which can be explained by the endodontic canal anatomical morphology. Actually, even if the causative endodontic bacteria remain isolated and without an exit in the healthy periodontal tissues, then this can also be a clinical endodontic success, regardless of the fact that the endodontic isolation occurred only in the exits such as the apex or the accessory canals. Clinical endodontic in-success occurs only when bacterial residues emerge or provide an exit in the healthy periradicular tissues or along the entire length of the canal where the accessory canals exit.

Keywords: Endodontic success, E. faecalis, nanoparticles, laser diode, antibacterial, antiseptic.

Authors: Leila Baghaarabani, Parvin Razzaghi, Mennatolla Magdy Mostafa, Ahmad Albaqsami, Al Warith Al Rushaidi, Masoud Al Rawahi

Abstract:

Predicting the interaction between drugs and their molecular targets is pivotal for advancing drug development processes. Given the time and cost constraints, computational approaches have emerged as an effective approach to drug-target interaction (DTI) prediction. While most existing computational methods use drug molecules and protein sequences as inputs, this study goes further by introducing a protein representation developed using a masked protein language model. In this representation, each amino acid residue in the protein sequence is assigned a probability distribution, reflecting the likelihood of that residue occupying a specific position. The similarity between amino acid pairs is then calculated to generate a similarity matrix. To leverage this matrix, the study employs Bi-Level Routing Attention (BiFormer), a model that integrates transformer-based architectures with protein sequence analysis, representing a significant advancement in DTI prediction. BiFormer identifies the most critical regions of the protein sequence responsible for interactions with drugs, thereby deepening our understanding of these interactions. This approach demonstrates its ability to capture the local structural relationships within proteins and enhance the accuracy of DTI predictions. The proposed method was evaluated on two widely recognized datasets, Davis and KIBA, through comprehensive experiments that showcased its effectiveness compared to state-of-the-art techniques.

Keywords: BiFormer, transformer, protein language processing, self-attention mechanism, binding affinity, drug target interaction, similarity matrix, protein masked representation, protein language model.

Authors: Rui Yin, Ming Yin, Yang Wang

Abstract:

This paper presents empirical evidence supporting the Lorentz transformation for rotational frames in both inside critical cylinder (ICC) and outside critical cylinder (OCC) configurations, alongside the corresponding transformations of related physical quantities. These transformations are applied to derive the electromagnetic field parameters of a spinning charged particle. Our analysis of the particle's field energy not only reveals the masses of the proton and electron but also uncovers the underlying mechanism that accounts for the significant mass disparity between them. Additionally, we explore the relationship between the energy interval and the angular velocity of the spinning particle. Our results provide a deeper understanding of the nature of particle mass and may offer important insights into the study of dark energy and dark mass.

Keywords: Special Relativity, Lorentz Transformation. field energy, particle spin, dark mass, dark energy.

Authors: J. Scott Kenney

Abstract:

Not all pain is created equal. In recent decades, the concept of Illegitimate pain has begun to shed light on the phenomena of emotional and physical pain that is misunderstood, neglected, or stigmatized, broadly conceptualized along dimensions of relative legitimation and physicality. Yet, beyond a pioneering study of the suffering of closeted LGBTQ + individuals, along with an analysis of the pains experienced by students at a religious boarding school, there has been insufficient attention to what lies behind such marginalized suffering beyond the original claim that it relates to broad interpretive standards and structured power relations, mediated through interaction in various groups/settings. This paper seeks to delve theoretically into this underdeveloped terrain. Building on earlier work, it takes direct aim at the definitional aspect that lies analytically prior to such matters, theoretically unpacking the role of ideology. Following a general introduction focused on theoretical relationships between social structure, power, and ideas, the paper reviews a range of sociological literature on relevant matters. After condensing the insights from these various literatures into a series of theoretical statements, the paper analytically engages with these to articulate a series of theoretical and methodological elaborations intended to practically assist researchers in empirically examining such matters in today's complex social environment.

Keywords: Deviance, ideology, illegitimate pain, social theory, victimization.

Authors: Okezie A. Ihugba, Emeka E. Oguzie

Abstract:

Nigeria's renewable energy market is expanding due to increased environmental awareness, supportive government policies, and the need for energy diversification. This paper examines the role of solar batteries in enhancing Nigeria's energy security. With growing energy demands and frequent power outages, integrating solar batteries presents a viable solution to stabilize the energy supply. The study investigates the current state of solar battery technology in Nigeria, its economic and environmental benefits, and the challenges to implementation. Through a literature review, case studies, and stakeholder interviews, the paper provides a comprehensive analysis of solar batteries' contribution to a resilient energy future. Key players include Engie SA, TotalEnergies SE, Starsight Energy, Enel SpA, and North-South Power Co. Ltd. Challenges include high upfront costs, inadequate policies, weak infrastructure, and security risks. The paper recommends that the government should strengthen policies and incentives to encourage investments through tax breaks, subsidies, and financial incentives.

Keywords: Renewable energy, solar batteries, energy security, Nigeria's electricity generation, job creation.

Authors: Mutasim A. M. Ez Eldin, Tareq Saeid Al Zahrani, Gabel Zamil Al-Barakati, Ibrahim Mohamed AlHarthi, Marwan Mohamed Al Saikhan, Waleed Abdel Aziz Al Aklouk, Waheed Mohamed Saeid Ba Amer

Abstract:

The Knowledge Economic City (KEC) of Al Madinah Al Munawwarah is one of the major projects and represents a cornerstone for the new development activities for Al Madinah. The study area contains different geological units dominated by basalt and overlain by surface deposits. The surface soils vary in thickness and can be classified into well-graded SAND with silt and gravel (SW-SM), silty SAND with gravel (SM), silty GRAVEL with sand (GM), and sandy SILTY clay (CL-ML). The subsurface soil obtained from the drilled boreholes can be classified into poorly graded GRAVEL (GP), well-graded GRAVEL with sand (GW), poorly graded GRAVEL with silt (GP-GM), silty CLAYEY gravel with sand (GC-GM), silty SAND with gravel (SM), silt with SAND (ML), and silty CLAY with sand (CL-ML), sandy lean CLAY (CL), and lean CLAY (CL). The relative density of the deposit and the different gravel sizes intercalated with the soil influenced the Standard Penetration Test (SPT) values. The SPT N values are high and approach refusal even at shallow depths. The shallow refusal depth (0.10 to 0.90 m) of the Dynamic Cone Penetration Test (DCPT) was observed. Generally, the soil can be described as inactive with low plasticity and dense to very dense consistency. The basalt of the KEC site is characterized by slightly (W2) to moderately (W3) weathering, their strength ranges from moderate (S4) to very strong (S2), and the Rock Quality Designation (RQD) ranges from very poor (R5) to excellent (R1). The engineering geological map of the KEC characterized the geoengineering properties of the soil and rock materials and classified them into many zones. The high sulphate (SO42-) and chloride (Cl-) contents in groundwater call for protective measures for foundation concrete. The current study revealed that geohazard(s) mitigation measures concerning floods, volcanic eruptions, and earthquakes should be taken into consideration.

Keywords: Engineering geology, Knowledge Economic City, petrographic description, rock and soil investigations.

Authors: Wisdom Robert Duruji

Abstract:

The outbreak of SARS-CoV-2 serotype infection was recorded in January 2020 in Wuhan City, Hubei Province, China. This study examines the concepts of the COVID-19 pandemic and the implications of vaccines for health security in Nigeria and Diasporas. It challenges the widely accepted assumption that the first case of coronavirus infection in Nigeria was recorded on February 27th, 2020, in Lagos. The study utilizes a range of research methods to achieve its objectives. These include the double-layered culture technique, literature review, website knowledge, Google search, news media information, academic journals, fieldwork, and on-site observations. These diverse methods allow for a comprehensive analysis of the concepts and the implications being studied. The study finds that coronavirus infection can be asymptomatic; it may be the antigenicity of the leukocytes (white blood cells), which produce immunogenic hapten or interferons (α, β and γ) that fight infectious parasites, was an immune response that prevented severe virulence in healthy individuals; the reason healthy patients of coronavirus infection in Nigeria naturally recovered after two to three weeks of on-set of infection and test negative. However, the fatality data from the Nigerian Centre for Disease Control (NCDC) are incorrect in this study’s finding; it perused that the fatalities were primarily due to underlying ailments, hunger, and malnutrition in debilitated, comorbid, or compromised patients. This study concluded that the kits and Polymerase Chain Reaction (PCR) machine currently used by the NCDC in testing and confirming COVID-19 in Nigeria are not ideal; the Polymerase Chain Reaction Machine is programmed and negates separating the strain to its specific serotypes amongst its genera coronavirus, and family Coronaviridae; and might have confirmed patients with the symptoms of febrile caused by cough, catarrh, typhoid and malaria parasites as COVID-19 positive. Therefore, it is recommended that the coronavirus species infected in Nigeria are opportunistic parasites that thrive in human immuno-suppressed conditions like the herpesvirus; it cannot be eradicated by vaccines; the only virucides are interferons, immunoglobulins, and probably synthetic antiviral guanosine drugs like copegus or ribavirin. The findings emphasized that COVID-19 is not the primary pandemic disease in Nigeria; the lockdown was a mirage and not necessary; but rather, pandemic diseases in Nigeria are corruption, nepotism, hunger, and malnutrition caused by ineptitude in governance, religious dichotomy, and ethnic conflicts.     

Keywords: Coronavirus, corruption, COVID-19 pandemic, lockdown, Nigeria, vaccine.

Authors: Emilienne Lardy, Eric Ballot, Mariam Lafkihi

Abstract:

Efficient urban logistics requires a comprehensive understanding of traffic dynamics, particularly as it pertains to kinetic parameters influencing energy consumption and trip duration estimations. While real-time traffic information is increasingly accessible, current high-precision forecasting services embedded in route planning often function as opaque 'black boxes' for users. These services, typically relying on AI-processed counting data, fall short in accommodating open design parameters essential for management studies, notably within supply chain management. This work revisits the modeling of traffic conditions in the context of city logistics, emphasizing its significance from the user’s point of view, with two focuses. Firstly, the focus is not on the vehicle flow but on the vehicles themselves and the impact of the traffic conditions on their driving behavior. This means opening the range of studied indicators beyond vehicle speed, to describe extensively the kinetic and dynamic aspects of the driving behavior. To achieve this, we leverage the Art. Kinema parameters are designed to characterize driving cycles. Secondly, this study examines how the driving context (i.e., exogenous factors to the traffic flow) determines the mentioned driving behavior. Specifically, we explore how accurately the kinetic behavior of a vehicle can be predicted based on a limited set of exogenous factors, such as time, day, road type, orientation, slope, and weather conditions. To answer this question, statistical analysis was conducted on real-world driving data, which includes high-frequency measurements of vehicle speed. A factor analysis and a generalized linear model have been established to link kinetic parameters with independent categorical contextual variables. The results include an assessment of the adjustment quality and the robustness of the models, as well as an overview of the model’s outputs.

Keywords: Factor analysis, generalized linear model, real world driving data, traffic congestion, urban logistics, vehicle kinematics.

Authors: Subrata Sarkar, Amit Kalmegh, Patricia Cabrera, Andrew Masson, Oliver Fletcher

Abstract:

The aerospace industry is experiencing a profound product development transformation driven by the powerful integration of digitalization and 3D printing technologies. This paper delves into the significant impact of this convergence on aerospace innovation, specifically focusing on developing jet pumps for fuel systems. This case study is a compelling example of the immense potential of these technologies. In response to the industry's increasing demand for lighter, more efficient, and customized components, the combined capabilities of digitalization and 3D printing are reshaping how we envision, design, and manufacture critical aircraft parts, offering a new paradigm in aerospace engineering. We consider the development of a jet pump for a fuel system, a task that presents unique and complex challenges. Despite its seemingly simple design, the jet pump's development is hindered by many demanding operating conditions. The qualification process for these pumps involves many analyses and tests, leading to substantial delays and increased costs in fuel system development. However, by harnessing the power of automated simulations and integrating legacy design, manufacturing, and test data through digitalization, we can optimize the jet pump's design and performance, thereby revolutionizing product development. Furthermore, 3D printing's ability to create intricate structures using various materials, from lightweight polymers to high-strength alloys, holds the promise of highly efficient and durable jet pumps. The combined impact of digitalization and 3D printing extends beyond design, as it also reduces material waste and advances sustainability goals, aligning with the industry's increasing commitment to environmental responsibility. In conclusion, the convergence of digitalization and 3D printing is not just a technological advancement but a gateway to a new era in aerospace product development, particularly in the design of jet pumps. This revolution promises to redefine how we create aerospace components, making them safer, more efficient, and environmentally responsible. As we stand at the forefront of this technological revolution, aerospace companies must embrace these technologies as a choice and a strategic imperative for those striving to lead in innovation and sustainability in the 21st century.

Keywords: Jet pump, digitalization, 3D printing, aircraft fuel system.

Authors: Olaniyi Awe, Adelana R. Adetunji, Abraham A. Adeleke

Abstract:

Mining of alluvial gold ore by artisanal miners has been going on for decades at Itagunmodi, Southwestern Nigeria. In order to optimize the traditional panning gravity separation method commonly used in the area, a mineral particle size analysis study is critical. This study analyzed alluvial gold ore samples collected at identified five different locations in the area with a view to determine the ore particle size distributions. A 500 g measure of as-received alluvial gold ore sample was introduced into the uppermost sieve of an electrical sieve shaker consisting of sieves arranged in the order of decreasing nominal apertures of 5600 μm, 3350 μm, 2800μ m, 355 μm, 250 μm, 125 μm and 90 μm, and operated for 20 minutes. The amount of material retained on each sieve was measured and tabulated for analysis. A screen analysis graph using the Gaudin Schuman method was drawn for each of the screen tests on the alluvial samples. The study tests showed that the cumulative percentages of fine particles size -125+90 μm fractions and below were 45.00%, 36.00%, 39.60%, 43.00% and 36.80% for the selected samples. These primary ore characteristic results provide reference data for the alluvial gold ore processing method selection, process performance measurement and optimization.

Keywords: Alluvial gold ore, Gaudin Schumann, particle size, sieve shaker.

Authors: Liu Yao

Abstract:

With the acceleration of urbanization and the profound change of industrial structure, a large number of unused and abandoned industrial heritage has emerged in the city, and the industrial communities attached to them have also fallen into a state of decline. This decline is not only reflected in the aging and decay of the physical space, but also in the rupture and absence of historical and cultural veins. Therefore, in urban renewal, we should not only pay attention to the physical transformation and reconstruction, but also think deeply about how to inherit the spiritual core of industrial heritage communities, how to awaken and reconstruct their place memory, and how to promote its organic integration with the process of urban redevelopment. This study takes the Jiangnan Cement Factory industrial heritage community as a typical case, and analyzes the challenges and opportunities it faces in the process of renewal, protection and utilization. With the continuation of the spirit of place as the core, we are committed to realizing the sustainable development of the community's industry, space and culture. Based on this, we propose three types of regeneration strategies, including industrial activation, spatial restoration and spiritual continuity, in order to provide useful theoretical references and practical guidance for the future conservation of industrial heritage and the sustainable development of communities.

Keywords: Spirit of place, industrial heritage communities, urban renewal, sustainable communities.

Authors: R. Prinsloo

Abstract:

Rule 41A was introduced to the Uniform Rules of Court with the intention of promoting alternative dispute resolution (ADR), specifically mediation, as a means of resolving disputes; its voluntary nature allows parties to explore mediation willingly without the imposition of a mandatory requirement. Defamation suits, often notorious for their protracted litigation timelines, could benefit from the streamlined efficiency offered by mandatory rule 41A processes. Mediation, when mandated, could serve as a swift alternative, alleviating the burden on the court system and providing expedited relief to aggrieved parties. By incorporating a mandatory mediation step, parties might be encouraged to engage in a more constructive dialogue at an earlier stage, potentially fostering resolutions that might be elusive within the confines of protracted courtroom battles. This expedited resolution could not only benefit the litigants involved but also contribute to the broader efficiency and efficacy of the legal system. However, the application of rule 41A in defamation cases raises intriguing questions about its effectiveness in balancing the scales between freedom of expression and the protection of reputation. In considering the potential merits of making rule 41A mandatory in defamation cases, a key consideration is the prospect of expeditious and cost-effective resolution.

Keywords: Constitution of South Africa, defamation, litigation, mandatory, mediation.

Authors: M. Hisham, S. Cabemaiwai, S. Prasad, T. Dauvakatini, R. Ananthanarayanan

Abstract:

A solenoid valve is an important part of many fluid systems. Its purpose is to regulate fluid flow in a machine. Due to the crucial role of the solenoid valve and its design intricacy, it is quite expensive to be obtained in Fiji and is not manufactured locally. A concern raised by the local health industry is that the housing of the solenoid valve gets damaged when machines are continuously being used and this part of the valve is very costly to replace due to the lack of availability in Fiji and many other South Pacific region countries. This study explores the agile manufacturing of a solenoid coil housing using the Fused Deposition Modeling (FDM) process. An emergy study was carried out to analyze the feasibility and sustainability of producing the part locally after estimating a Unit Emergy Value (or emergy transformity) of 1.27E + 05 sej/j for the electricity in Fiji. The total emergy of the process was calculated to be 3.05E + 12 sej, of which a majority was sourced from imported services and materials. Renewable emergy sources contributed to just 16.04% of the total emergy. Therefore, the part is suitable to be manufactured in Fiji with a reasonable quality and a cost of $FJ 2.85. However, the loading on the local environment is found to be significant and therefore, alternative raw materials for the filament like recycled PET should be explored or alternative manufacturing processes may be analyzed before committing to fabricating the part using FDM in its analyzed state.

Keywords: Emergy analysis, fused deposition modeling, solenoid valve housing, sustainable production.

Authors: Mohsen Hasirian, Amir Shahab Shahabi

Abstract:

Modern societies, marked by expansive Internet connectivity and the rise of e-commerce, are now integrated with digital platforms at an unprecedented level. The efficiency, speed, and accessibility of e-commerce have garnered a substantial consumer base. Against this backdrop, electronic banking has undergone rapid proliferation within the realm of online activities. However, this growth has inadvertently given rise to an environment conducive to illicit activities, notably electronic payment fraud, posing a formidable challenge to the domain of electronic banking. A pivotal role in upholding the integrity of electronic commerce and business transactions is played by electronic fraud detection, particularly in the context of credit cards which underscores the imperative of comprehensive research in this field. To this end, our study presents an Attentional Bi-Stream Sequence Learner (AttBiSeL) framework that leverages attention mechanism and recurrent networks. By incorporating bidirectional recurrent layers, specifically bidirectional Long Short-Term Memory (LSTM) and Gated Recurrent Unit (GRU) layers, the proposed model adeptly extracts past and future transaction sequences, while accounting for the temporal flow of information in both directions. Moreover, the integration of an attention mechanism accentuates specific transactions to varying degrees, as manifested in the output of the recurrent networks. The effectiveness of the proposed approach in automatic credit card fraud classification is evaluated on the European Cardholders' Fraud Dataset. Empirical results validate that the hybrid architectural paradigm presented in this study yields enhanced accuracy compared to previous studies.

Keywords: Attention mechanism, credit card fraud, deep learning, recurrent neural network.

Authors: A. Uluwita, F. Pedrosa, G. Georgiev, C. Bernard, R. Masterson

Abstract:

CERN is an international organization funded by 23 countries that provide the particle physics community with excellence in particle accelerators and other related facilities. Founded in 1954, CERN has a wide range of accelerators that allow groundbreaking science to be conducted. Accelerators bring particles to high levels of energy and make them collide with each other or with fixed targets, creating specific conditions that are of high interest to physicists. A chain of accelerators is used to ramp up the energy of particles and eventually inject them into the largest and most recent one: the Large Hadron Collider (LHC). Among this chain of machines is, for instance, the Proton Synchrotron, which was started in 1959 and is still in operation. These machines, called "injectors”, keep evolving over time, as well as the related infrastructure. Massive decommissioning of obsolete cables started in 2015 at CERN in the frame of the so-called "injectors de-cabling project phase 1". Its goal was to replace aging cables and remove unused ones, freeing space for new cables necessary for upgrades and consolidation campaigns. To proceed with the de-cabling, a project co-ordination team was assembled. The start of this project led to the investigation of legacy cables throughout the organization. The identification of cables stacked over half a century proved to be arduous. Phase 1 of the injectors de-cabling was implemented for 3 years with success after overcoming some difficulties. Phase 2, started 3 years later, focused on improving safety and structure with the introduction of a quality assurance procedure. This paper discusses the implementation of this quality assurance procedure throughout phase 2 of the project and the transition between the two phases. Over hundreds of kilometers of cable were removed in the injectors complex at CERN from 2015 to 2023.

Keywords: CERN, de-cabling, injectors, quality assurance procedure.

Authors: Obedat Abdulazeez, Yongsheng Guo, Xiaoxian Zhu

Abstract:

This paper analyses the design and impact of public policies on the development of Small and Medium-sized Enterprises (SMEs) in Nigeria, focusing on the Small and Medium Enterprises Development Agency of Nigeria (SMEDAN). SMEs play a significant role in Nigeria’s economic growth, job creation, and income generation but face significant challenges including power supply, financing, insecurity, and taxation. This paper analyses how SMEDAN’s policies and initiatives address these challenges and promote SME growth. Using mixed methods, interviews and questionnaires were conducted with SME owners/managers and SMEDAN officials to evaluate the effectiveness of SMEDAN’s interventions. In this study, 336 responses were received from SMEs in Kaduna state, Nigeria, and descriptive analysis was utilized to analyze the data. Findings reveal that business-clinics, financial-linkage, and training, have positively impacted SME development. However, less than half of the respondents agree that there is a need for increased outreach and better implementation of policies to enhance SME growth. Recommendations are provided for policymakers to improve the design of support strategies by ensuring a more encouraging environment for SME development and by targeting the areas that have not been captured.

Keywords: Nigeria, public policy, Small and Medium-sized Enterprises, SME, SMEDAN, Small and Medium Enterprises Development Agency of Nigeria.

Authors: Tharunika Sridhar

Abstract:

Almost all areas of smart city tourism development now require robust infrastructure upgrades to meet emerging standards in consumer safety, motivation, and support. Technologies like 5G, IoT, and AI significantly support the data-intensive tourism sector by enhancing customer satisfaction through convenient solutions such as real-time assistance, location tracking, and personalized services. This research thoroughly analyzes an IoT-based tourist support model to evaluate its ability to assist various traveler demographics, including solo travelers, youth, and purpose-driven tourists such as health and adventure travelers. Although promising, effective implementation requires prioritizing user trust and data protection, as high implementation costs and varying user acceptance may present challenges.

Keywords: Smart Tourism, 5G, Internet of Things, Artificial Intelligence.

Authors: Petr Šimek

Abstract:

This work deals with the problem of synchronization of bus frames during transmission using USB (Universal Serial Bus). The principles for synchronization between USB and the non-deterministic CAN (Controller Area Network) bus will be described here. Furthermore, the work deals with ensuring the time sequence of communication frames when receiving from multiple communication bus channels. The structure of a general object for storing frames from different types of communication buses, such as CAN and LIN (Local Interconnect Network), will be described here. Finally, an evaluation of the communication throughput of bus frames for USB high speed will be performed. The creation of this architecture was based on the analysis of the communication of control units with a large number of communication buses. For the design of the architecture, a test HW with a USB-HS interface was used, which received previously known messages, which were compared with the received result. The result of this investigation is the block architecture of the control program for test HW ensuring correct data transmission via the USB bus.

Keywords: communication analysis, controller area network, interface, local interconnect network, synchronization, USB

Authors: Mansa Radhakrishnan, Anwar Ali, Muhammad Rizwan Mughal

Abstract:

Many universities around the world are working on modular and low budget architecture of small spacecraft to reduce the development cost of the overall system. This paper focuses on the design of a modular solar power harvesting system for a hexagonal-shaped small satellite. The designed solar power harvesting systems are composed of solar panels and power converter subsystems. The solar panel is composed of solar cells mounted on the external face of the printed circuit board (PCB), while the electronic components of power conversion are mounted on the interior side of the same PCB. The solar panel with dimensions 16.5 cm × 99 cm is composed of 36 solar cells (each solar cell is 4 cm × 7 cm) divided into four parallel banks where each bank consists of 9 solar cells. The output voltage of a single solar cell is 2.14V, and the combined output voltage of 9 series connected solar cells is around 19.3V. The output voltage of the solar panel is boosted to the satellite power distribution bus voltage level (28V) by a boost converter working on a constant voltage maximum power point tracking (MPPT) technique. The solar panel module is an eight-layer PCB having embedded coil in 4 internal layers. This coil is used to control the attitude of the spacecraft, which consumes power to generate a magnetic field and rotate the spacecraft. As power converter and distribution subsystem components are mounted on the PCB internal layer, therefore it is mandatory to do thermal analysis in order to ensure that the overall module temperature is within thermal safety limits. The main focus of the overall design is on compactness, miniaturization, and efficiency enhancement.

Keywords: small satellites, power subsystem, converter, maximum power point tracking, MPPT

Authors: Kamal Kithsiri Karunadasa Hewawasam Revulge

Abstract:

This paper is an interpretative historical analysis of Australian migration laws that examines asylum and refugee policies and attitudes in Australia. It looks at major turning points in Australian migration history, and in doing so, we reviewed relevant literature on the aspects crucial to highlighting the current trend of Australian migration policies. The data was collected using secondary data from official government sources, including annual reports, media releases on immigration, inquiry reports, statistical information, and other available literature to identify critical historical events that significantly affected the systematic developments of asylum seekers and refugee policies in Australia and to look at the historical trends of official thinking. A reliance on using these official sources is justified as those are the most convincing sources to analyse the historical events in Australia. Additional literature provides us with critical analyses of the behaviour and culture of the Australian immigration administration. The analytical framework reviewed key Australian Government immigration policies since British colonization and the settlement era of 1787–the 1850s and to the present. The fundamental basis for doing so is that past events and incidents offer us clues and lessons relevant to the present day. Therefore, providing a perspective on migration history in Australia helps analyse how current policymakers' strategies developed and changed over time. Attention is also explicitly focused on Australian asylum and refugee policy internationally, as it helped to broaden the analysis. The finding proved a link between past events and adverse current Australian government policies towards asylum seekers and refugees. It highlighted that Australia's current migration policies are part of a carefully and deliberately planned pattern that arose from the occupation of Australia by early British settlers. In this context, the remarkable point is that the historical events of taking away children from their Australian indigenous parents, widely known as the 'stolen generation' reflected a model of assimilation, or a desire to absorb other cultures into Australian society by fully adopting the settlers' language, their culture, and losing indigenous people's traditions. Current Australian policies towards migrants reflect the same attitude. Hence, it could be argued that policies and attitudes towards asylum seekers and refugees, particularly so-called 'boat people' to some extent, still reflect Australia's earlier colonial and 'white Australia' history. 

Keywords: migration law, refugee law, international law, administrative law

Authors: Mohammad Borhani, Afshin Danehkar

Abstract:

With the increase in population and the upward trend of energy demand, mankind has considered using suppliers that guarantee a stable energy supply, unlike fossil fuels. Fossil fuels not only widely emit greenhouse gases, which are one of the main factors in ozone layer depletion, but they will also be depleted in the near future. In this context, one sustainable method of energy supply is the utilization of wind turbines that convert wind energy into electricity. Therefore, this study focuses on wind turbines and their installation requirements. Wind turbines are primarily classified based on their rotation axis into two categories: horizontal axis and vertical axis. Both types can be installed and operated in various man-made environments such as cities, villages, airports, and other human settlements due to technological advancements. The main distinction between offshore and onshore wind turbines lies in their installation and foundation. Offshore wind turbines are typically categorized into five types: monopile, jacketed, tripod, gravity-driven, and floating wind turbines. To enhance the efficiency of a wind power plant, the distance between turbines is usually maintained at 5 to 7 times the rotor diameter. When turbines are perpendicular to the wind direction, the distance is typically 3 to 5 times the rotor diameter.

Keywords: wind farms, horizontal axis wind turbines, sustainable development, wind energy potential, renewable energy

Authors: Katherine Lapierre

Abstract:

The research engages with the notion of the irrational in the conception of digital architectural design. Following this line, various projects are developed and proposed explorations in the form of plans and 3D models that expose the precarious balance between feasibility, viability, and impossibility due to standards and physical and technical constraints. These different experiments are a testing ground for new practices and media, such as the exploration of different techniques of 3D printing for building construction. The work focuses on outsider architecture, directly referring to the expression “Art Brut” (or "Outsider Art"). It represents an unprecedented potential sphere of action, broadening the debate on the status and possible contribution of Art Brut notions to architecture and design in constructing a global architectural discourse. The project focuses on the design of models/sculptures inspired by empirical practices drawn from the Catalog raisonné of outsider architecture, a database. The works use enlarged-scale versions of chosen artifacts of nature that have been scanned and transformed. Outsider architectures revive Bachelardian theories silenced by the paradigm shift that accompanied modernity. The research-creation work follows this line of thought, linking the unconscious with the Bachelardian concept of material imagination. The model and plan studies are based on a process halfway between sculpture and architecture, used to create living units that explore the potential of digital architecture as a trigger for the imagination. The different representation techniques used in these creations contribute to developing various skills in computer modeling, 3D scanning and 3D printing. Outsider creates the opportunity to investigate methods of representation sidelined by architectural practice. The logic of construction shifts, emphasizing the creation of spaces with numeric tools of representation that follow empirical design methods drawn from the field of architecture. Model-making becomes a laboratory for the formal exploration of various numeric transformations: anamorphism, scaling, piercing, extruding, and erasing.

Keywords: singular architecture, outsider art, architecture, archisculpture, maquette-sculpture, photo mount, collage, 3D print

Authors: Kang Liu, Meng Liu, Meng-Long Wu, Da-Chang Yue, Hong-Yi Pan

Abstract:

The soil setup is an important factor affecting pile bearing capacity; there are many factors that influence it, all of which are closely related to pile construction disturbances. During pile installation in soil, a significant amount of excess pore pressure is generated, creating disturbance zones around the pile. The dissipation rate of excess pore pressure is an important factor influencing the pile setup. The paper aims to examine how alterations in parameters within disturbance zones affect the dissipation of excess pore pressure. An axisymmetric FE model is used to simulate pile installation in clay, subsequently consolidation using PLAXIS 3D. The influence of disturbed zone on setup is verified, by comparing the parametric studies in uniform field and non-uniform field. Three types of consolidation are employed: consolidation in three directions, vertical consolidation, horizontal consolidation. The results of the parametric study show that the permeability coefficient decreases, soil stiffness decreases, and reference pressure increases in the disturbance zone, resulting in an increase in the dissipation time of excess pore pressure and exhibiting a noticeable threshold phenomenon, which has been commonly overlooked in previous literature. The research in this paper suggests that significant thresholds occur when the coefficient of permeability decreases to half of the original site's value for three-directional and horizontal consolidation within the disturbed zone. Similarly, the threshold for vertical consolidation is observed when the coefficient of permeability decreases to one-fourth of the original site's value. Especially in pile setup research, consolidation is assumed to be horizontal; the study findings suggest that horizontal consolidation has experienced notable alterations as a result of the presence of disturbed zones. Furthermore, the selection of pile installation methods proves to be critical. A nonlinearity excess pore pressure formula is proposed based on cavity expansion theory, which includes the distribution of soil profile modulus with depth.

Keywords: pile setup, threshold value effect, installation effects, uniform field, non-uniform field

Authors: Ali Berk Bozan, Reşat Atalay Oyguç

Abstract:

The demand for precast reinforced concrete (RC) structures is growing, considering their certain benefits, including faster assembly, homogeneous materials, and high-quality labor. The structural integrity of precast RC constructions is influenced by the effectiveness of the joints and connections. This paper contains an analytical study about four types of precast RC frames, which vary according to the number of storeys and the number of bays with two different types of moment-resisting beam-to-column connection is investigated under cyclic displacement loading up to 5.6% drift rate by using ABAQUS software. The first connection type is the widely used moment-resisting connection that is defined as a wet connection in Turkish Seismic Code (TBDY). The second connection type is known as Artificial Controllable Plastic Hinge. The goal of this connection is to defend RC components from earthquake-related plastic deformations by keeping them in a specialized connecting section. It will be possible to repair the broken connections after the earthquake. The cyclic behavior of the four types of frames with the mechanical plastic hinge and wet connection were analytically investigated, and then comparisons and suggestions were made on period, ductility, and structural system behavior coefficient. The analytical study shows that the replaceable plastic hinge element provides a significant period increase. Especially in the case of two storeys and two bays, the change in the period was felt the most compared to other frames. The results for ductility show a significant change in the ductility of the frames with replaceable plastic hinges. While the average effect of ACPH on ductility in frame 1B2S is 47.5%, the average effect of ACPH on ductility in frame 2B2S is 57.3% respectively.

Keywords: precast structures, replaceable plastic hinge, beam to column connections, ductility

Authors: Andrew John Zeller, Artjoms Formulevics

Abstract:

Banking and financial services are rapidly transitioning from being monolithic structures focusing merely on their own financial offerings to becoming integrated players in multiple customer journeys and supply chains. Banks themselves are refocusing on being liquidity providers and underwriters in these networks, while the general concept of ‘embeddedness’ builds on the market readily available API (Application Programming Interface) architectures to flexibly deliver services to various requestors, i.e., online retailers who need finance and insurance products to better serve their customers, respectively. With this new flexibility come new requirements for enhanced cybersecurity. API structures are more decentralized and inherently prone to change. Unfortunately, this has not been comprehensively addressed in the literature. This paper tries to fill this gap by looking at security approaches and technologies relevant to API architectures found in embedded finance. After presenting the research methodology applied and introducing the major bodies of knowledge involved, the paper will discuss six dominating technology trends shaping high-level financial services architectures. Subsequently, embedded finance and the respective usage of API strategies will be described. Building on this, security considerations for APIs in financial and insurance services will be elaborated on before concluding with some ideas for possible further research.

Keywords: embedded finance, embedded banking strategy, cybersecurity, API management, data security, cybersecurity, IT management