bluuebunny/crossref_metadata_2025 huggingface dataset:
Landslide susceptibility in Phuoc Son, Quang Nam: A deep learning approach
Authors: Tran Anh Tuan , Pham Viet Hong , Tran Thi Tam , Nguyen Thi Anh Nguyet , Nguyen Van Dung , Phan Trong Trinh , Pham Tuan Huy , Tran Van Phong
Published: October 2024

Advanced machine learning and deep Learning modeling applications for landslide susceptibility mapping are becoming increasingly popular. This study applied a deep learning model (DL) with a multilayer neural network to landslide research in the Phuoc Son district, Quang Nam province. Two methods for selecting conditioning factors, Correlation Attribute and OneR, were used to choose 12 condition parameters for landslides (Slope, Relief, Elevation, Distance to road, Rainfall, Land use, Weathering crust, Geology, Aspect, Soil, Distance to fault, and Curvature). Comparing the predicted results with two standard models, Naïve Bayes (NB) and Support Vector Machine (SVM), showed that the DL model has higher and better prediction performance. Accordingly, the prediction performance of the DL model on the training dataset was ACC = 92.12%, AUC = 0.970, and on the validation dataset was ACC = 87.52, AUC = 0.944. The LSM developed based on the DL model indicates that areas with high landslide susceptibility are primarily concentrated in the southern part of the study area. These findings could be highly beneficial for urban planning management, risk management, and efforts to prevent and mitigate the damage caused by landslides in Phuoc Son.
Evaluation of Physico-Chemical and Heavy Metals Concentration of Groundwater in Okrika, Rivers State, Nigeria
Authors: Ojukwu Dr. Geraldine Okwy , Udom Prof. Godwin J. , Ehirim Prof. C.N.
Published: October 2024

Groundwater is susceptible to overexploitation and pollution, causing water stress. Seawater intrusion makes coastal aquifer groundwater more vulnerable. Therefore, this study examined groundwater samples from Okrika coastal community aquifers in Rivers State, Nigeria. Standard field and laboratory methods were used to analyze physico-chemical and microbiological parameters in 10 groundwater samples from functional boreholes in the study region. The water was tested for drinking, household, and other uses. Mean values for the following parameters are shown: pH: 5.6; Temperature: 29.3°C; Turbidity: 2.1 NTU; Dissolved Oxygen: 6.6 mg/L; Biological and Chemical Oxygen Demands: 0.4 and 0.6 mg/L; Hardness: 21.2 mg/L; Residual chlorine: < 0.01 mg/L; Electrical conductivity: 52.7 μS/cm; Salinity: 25.9 mg/L; Acidity: 0.4; Alkalinity: 6.6 mg/L; Total Suspended Solids: 0.5 mg/L; Total Dissolved Solids, 29mg/L; Nitrite, < 0.001 mg/L; Chloride, 13.6 mg/L; Sulphate, 0.7 mg/L; Nitrate; 0.9 mg/L; Phosphate, 0.5 mg/L; Calcium, 0.3 mg/L; Sodium, 3.1mg/L; Iron, 0.1 mg/L; Magnesium, 0.9 mg/L; Zinc, 0.04 mg/L; Lead < 0.001 mg/L; Total Coliform,1574 MPN/100 mL; Faecal Coliform, 1510 MPN/100 mL. The parameters' values are within NSDWQ 2015 and WHO 2017 limits, except for Iron, which has a slightly high concentration, and Total and Faecal Coliform, which have high values in most of the study area. These data also suggest that the groundwater is soft, low in dissolved components, and slightly acidic. Few aquifers in the research area had salt-water incursion due to chloride levels. The water is appropriate for drinking and other domestic uses when compared to drinking water standards. Acidity of the water can be treated by base- exchange with dolomite, while iron by aeration and filtration methods. Total Coliform and Faecal Coliform treatment involve removing contamination sources, repairing systems, shock chlorinating and flushing impacted boreholes.
Zinc in commercial marine fish from Peninsular Malaysia: Biomonitoring, health risks, and UNSDGs’ connection
Authors: Yap Chee Kong , Al-Mutairi Khalid Awadh
Published: October 2024

The present study aimed to determine the human health risk (HHR) of zinc (Zn) in forty species of marine commercial fishes sourced from Peninsular Malaysia and available between April and May 2023. These species exhibited concentrations of Zn ranging from 24.1 to 153 mg kg–1 dried weight. These values fell below the maximum allowable limits established by seafood safety guidelines, indicating that the fish are valuable sources of the essential element. The Zn target hazard quotient values were below 1, suggesting that consuming fish containing Zn poses no non-carcinogenic risks. Additionally, it was discovered that the computed estimated weekly Zn intake values were lower than the established provisional allowable weekly Zn intake. It can be inferred that ingesting fish from Peninsular Malaysia would not expose consumers to any detrimental consequences regarding Zn levels. Although this is true, on-going surveillance via Fish Watch (biomonitoring of metal pollution using fish) is imperative to safeguard the well-being of consumers who significantly depend on commercial marine fish imported from Peninsular Malaysia. The study contributes to the achievement of the United Nations Sustainable Development Goals, particularly Goal 3 (Good Health and Well-being) by promoting safe consumption, Goal 12 (Responsible Consumption and Production) through sustainable fishing practices, and Goal 14 (Life Below Water) by emphasizing the importance of protecting marine ecosystems.
Depuration kinetics of potentially toxic metals (Hg, Co and Cr) in Perna viridis: Implications for biomonitoring, environmental management, and planetary health
Authors: Yap Chee Kong , Al-Mutairi Khalid Awadh
Published: October 2024

This study aims to study the depuration kinetics of mercury (Hg), cobalt (Co), and chromium (Cr) in the soft tissues of the green-lipped mussel Perna viridis, transplanted from one polluted site (Kg. Pasir Puteh) to two relatively unpolluted sites (Sungai Belungkor and Kg. Sungai Melayu). The effectiveness of P. viridis as a biomonitor for heavy metal contamination was assessed by monitoring the reduction in metal concentrations over a six-week period. The results revealed that Hg exhibited the highest depuration rates, with reductions exceeding 95% at both sites, while Co and Cr showed slower depuration rates, with significant site-specific variations. Health risk assessments, including estimated daily intake, target hazard quotient, and estimated weekly intake, indicated a substantial decrease in potential risks associated with seafood consumption as a result of the depuration process. These findings underscore the importance of considering environmental conditions when interpreting depuration data, highlight the role of P. viridis in supporting sustainable environmental management practices, and connect the health of marine ecosystems to broader planetary health and global sustainability goals, including the United Nations Sustainable Development Goals.
THE WALTZ OF CULTURAL LAYERS, THROUGH WHICH THE RUSSIAN BIRCH SPROUTED
Authors:   Perm State University, Narskii I. V. ,   University of Tyumen
Published: October 2024

The article is dedicated to the problem of unofficial symbolism, which served as a marker of Russian-Soviet identity, using the example of the birch as the Russian national tree. The old lyrical waltz “Berezka” (“Birch”) is taken as a starting point and occasion to answer questions about the reasons for the popularity of the state dance en-semble “Birch” (“Berezka”), founded in 1948, among Soviet audiences and about the genealogy of the image of the birch as a “Russian tree”. The tasks set are solved in several steps. First, the correspondence of the audience with the management of “Berezka” in the spring of 1962 is examined, then the role of the round dance “Berezka” and espe-cially the old waltz of the same name in the concerts of the ensemble, in the feature film “Maiden Spring” (1960) and in the perception of the fans of the ensemble is revealed. The history of the music and lyrics of the waltz “Birch” is then illuminated. The bizarre combination of cultural phenomena and influences of different origins in the genealogy of the waltz makes it possible to speak of several different “cultural layers” from which the Russian tree and its suc-cessful reception by the Russian population “grew”. The most important of these “layers” were the peasant, Roman-tic and Soviet ones. The last and most recent one of these, in the search for an ideal image of the USSR for the imag-inary West, consolidated the idea of the birch tree as a symbol of Russia in the years of late Stalinism.
TRAJECTORIES OF ACTUALIZATION OF HISTORICAL RESEARCH: ABOUT THE BOOK “LIFE IN A CATASTROPHE: EVERYDAY LIFE OF THE POPULATION OF THE URALS IN 1917–1922” BY I.V. NARSKII
Authors:   European University in St. Petersburg, Kolonitskii B.I. ,   St. Petersburg Institute of History, Russian Academy of Sciences
Published: October 2024

The article is devoted to the consideration of the monographic research of I.V. Narskii, describing the con-tent of the book and its place in both Russian and foreign historiography. Suggestions are made regarding the possibilities for further use of the author's ideas. Published in 2001, Narskii's monograph garnered attention for its extensive use of sources from archives in Moscow and the Urals, as well as its innovative methodological framework. Narskii was among the first to employ the history of everyday life approach, which was primarily developed by German historians. Skillful application of this approach, accompanied by a switch in research per-spective and a change in the scale of description, allowed the researcher to re-construct various aspects of the life and survival of “little people” in a “turning point in history,” an era of enormous social catastrophe. Innovative in many respects, the monograph has had a significant impact not only on Russian, but also on foreign historiog-raphy. Now, in a different social and academic situation, the book remains relevant and stimulates new research. Other authors have used it as a reference for different historiographical directions, such as the history of emo-tions. Narskii’s observations, conclusions and assumptions can also be applied to the study of the new political elites of revolutionary Russia, the tactics of individual and group survival during times of social catastrophe, and the history of political culture of the revolutionary era.
A review of smart inverter capabilities for managing high levels of distributed energy resource integration in South Africa’s power grid
Authors: Dzobo Oliver , Tivani Lucas , Mbatha Lindani
Published: October 2024

Distributed energy resources (DERs), including solar panels, wind turbines, and battery storage, are becoming more prevalent in power grids. This increased penetration necessitates a closer look at how they impact the grid's operation. Power grid operators face challenges in ensuring the secure operation of the network in the presence of DERs. This includes managing voltage fluctuations, integrating diverse energy sources, and preventing grid overloads. This paper reviews the impacts of DERs on power grid operation and discusses strategies for enhancing the integration of DERs in South Africa’s grid. The strategies involve technology solutions, grid management techniques, and policy changes that facilitate the seamless integration of renewable energy sources. Smart inverters are highlighted as an essential component of the solution. Their advanced capabilities play a central role in managing voltage, frequency, and other aspects of power quality, which is critical when integrating DERs. The paper offers a comprehensive overview of the challenges of integrating inverter-based DERs into the power grid, highlighting lacks and deficiencies in existing South Africa power grid codes and standards and discussing solutions – thus paving a way for future investigations and developments. Eight international regulations are examined and compared, exposing the lack of a worldwide harmonisation and a consistent communication protocol. The paper calls for the evolution of power grid codes to adapt to the changing energy landscape and to harness the benefits of DERs and advanced smart inverter capabilities. This involves updating regulations and standards to ensure grid stability and reliability while accommodating renewable energy sources. The review can aid power utilities and regulators in making informed decisions in enhancing grid-connected DERs and ensuring safe and secure grid operation.
Quadratic Fractionally Integrated Moving Average Processes with Long-Range Dependence
Authors:   Federal Institute of Rio Grande do Sul, Alvorada, RS, Brazil., F. de Medeiros Jonas , C. Lopes Sílvia Regina ,   Mathematics and Statistics Institute at Federal University of Rio Grande do Sul, Porto Alegre, RS, Brazil., J. Karling Maicon ,   Statistics Program, CEMSE Division at King Abdullah University of Science and Technology, Thuwal, Saudi Arabia., L. Feltes Guilherme ,   Institute for Analysis and Numerics at Universität Münster, Münster, Germany.
Published: October 2024

Stochastic processes with the long-range dependency (LRD) property are fundamental to modeling data that exhibit slow power decay of the covariance function. Such behavior often appears in the analysis of financial data, telecommunications, and various natural phenomena. Thus, introducing new stochastic models and statistical methods that take the LRD into account is of great interest. Based on previous work, we introduce a new stochastic process called quadratic fractionally integrated moving average, that arises from the Quadratic Ornstein-Uhlenbeck Type (QOUT) process, proposed in the literature. We consider Lévy noises of finite second-order moments and use a construction based on a moving average stochastic process whose kernel is that of a QOUT process. Then, using Riemann-Liouville fractional integrals, we propose a fractionally integrated moving average process, for which we highlight some results, including the LRD. We also propose the estimation of the parameters for this process for the case of fractional Brownian noise, showing its efficiency through a Monte Carlo simulation. By an application based on Brazil’s stock market prices, we illustrate how this process can be used in practice with the Sao Paulo’s Stock Exchange Index data set, also known as the BOVESPA Index
Well-Possednes of a predator-prey reaction-diffusion model with functional response dependent on species
Authors:   Facultad de Ciencias Matemáticas, Universidad Nacional Mayor de San Marcos, Lima, Perú., Pino Romero Neisser
Published: October 2024

In this work, well-possednes of a predator-prey model with reaction-diffusion will be studied, where the Allee effect in the reproduction of the prey will be included, and predation dynamics through a functional response dependent on the species (prey and predator). In addition, a refuge strategy for the dam will be incorporated. In this way, the existence, uniqueness and positivity of the system’s solutions as the main result will be guaranteed.
Hidden Markov model: Method for building a business process model
Authors: Varnukhov Artem
Published: October 2024

More and more companies are influenced by the rapid development of technology (Industry 4.0/5.0 concept), are embracing digital transformation processes. The introduction of information systems makes it possible to accumulate a large amount of data about the company’s activities. Study of such information expands the opportunities for applying a data-driven approach to business process management (BPM). Processing and studying data from event logs using process mining methods make it possible to build digital models of business processes which turn out to be a useful source of information when carrying out analysis, modeling and reengineering within the framework of the process approach. In this paper, we develop a method for building a business process model based on a hidden Markov model, taking into account the restrictions imposed by the subject area. The use of a hidden Markov model allows us to use the apparatus of probability theory and mathematical statistics to analyze business processes, as well as to solve classification and clustering problems. This article describes the capabilities of a data-driven approach to business process management and demonstrates examples of the practical application of the method to solve business challenges: drawing a dependency graph that can be used to identify discrepancies between actual and expected execution, as well as a method for predicting the outcome of a business process based on the sequence of observed events.
Constructing a model to identify the determinants of successful software import substitution
Authors: Begicheva Svetlana , Begicheva Antonina , Nazarov Dmitry
Published: October 2024

In the process of import substitution, higher educational institutions face several challenges in transitioning from the predominant use of foreign software to domestic alternatives. These challenges include a lack of user experience with domestic digital solutions, difficulty in transferring data between systems and other issues. The difficulties associated with the transition period create resistance to the digital transformation process. Research on import substitution in universities has identified three main themes: the challenges and risks associated with switching to domestic software, exploring the feasibility of a complete transition to Russian software and providing recommendations for selecting Russian solutions. This study aims to identify the factors that influence the adoption of import substitution software products in higher education. The article proposes a structural model to identify the factors that contribute to successful software import substitution. The model is based on the theories of innovation diffusion and technology adoption, and it was developed using SmartPLS software. The model is based on data collected from a survey of professors and staff at the Ural State University of Economics. The results of the study indicate that the attitude towards adopting import substitution software depends on several factors, including the personal characteristics and innovative features of the software. The most significant determinants of a positive attitude towards transitioning to domestic software include user involvement and self-efficacy. In addition, a positive perception of the need for import substitution can influence individual acceptance of transitioning to Russian software and recognizing import substitution as an economic policy of the country. The theoretical significance of the study lies in its proposal of an original model for identifying the determinants of successful software import substitution that differentiates between individual acceptance and public recognition of software import substitution. The findings of the study could be useful to university management in planning and implementing measures for an import substitution strategy.
Collective Countermeasures in Response to Cyber Operations under International Law
Authors: Martynova Ekaterina
Published: October 2024

The paper examines the application of collective countermeasures — i.e., measures taken by non-injured states — as a means of cooperative non-institutionalized response to malicious cyber-enabled activities undertaken or controlled by a state. Particularly, the paper investigates: the right of the state not injured by a cyber operation to take countermeasures against the perpetrating state under current international law; and state positions towards collective countermeasures and possible grounds for the development of a more supportive attitude within states to this form of collective reaction. General research and special legal methods, as well as game theory, are employed to test the hypothesis the concept of collective countermeasures has been gaining nascent and fragmented support by states in terms of its applicability in the context of cyber operations. The author concludes this emerging trend reflects the general tendency of states to join forces to halt malicious activities in cyberspace and impose political and economic costs upon the perpetrators. This allows one to assume that collective countermeasures in response to cyber operations might become an expectable means of reaction by ‘like-minded’ states. Their legitimation might, therefore, be determined not only (or not so much) by the development of international law due to the practical difficulty in harmonizing positions among states on this issue at the current stage, but rather as a part of the general political trend of uniting the efforts of states to bring wrongdoers in cyberspace to responsibility.
Legal Regulating Electronic Employment Contracts as a Modern Factor of Integration at International Regional Bodies (Exemplified by EEU, CIS and BRICS States Legislation)
Authors: Buyanova Marina , Batusova Ekaterina
Published: October 2024

The paper provides an analysis of general regulatory patterns concerning the signing, amendment and termination of electronic employment contracts within the Eurasian Economic Union (EEU), Commonwealth of Independent States (CIS) and BRICS as a trend of deepening integration at these international organizations. The core issue in this area is labor mobility in the context of digitization is not regulated internationally with efficiency. It gives rise to a controversy between the need to optimize labor mobility and a lack of comprehensive international instrument on electronic employment contract to improve legal regulation for more efficient utilization of human capital. The paper analyzes the legislation on electronic employment contracts in a number of EEU, CIS and BRICS member states to come up with recommendations for improving international legal regulation of electronic employment contracts via the relevant international instrument to be drafted. The authors identify a number of general regulatory patterns characteristic of countries such as Russia, Kazakhstan, Kyrgyzstan, Armenia, Belarus, Azerbaijan, Uzbekistan, China, South Africa, India and Brazil, with their national labor law sharing the following features: possibility of HR electronic document exchange for balance of workers’ and employers’ interests as enabled by regulations; transparent working conditions; electronic employment contract reporting through the software linked to public authorities’ websites, and the use of electronic digital signature to sign contracts. This prevents unauthorized amendment of the terms of outstanding employment contracts and allows to track the time when the relevant rights and duties were assigned. The paper comes up with recommendations for better protection of labor rights and duties through the use of electronic tools to conclude employment contracts such as a bilingual online form.
Child Neglect and Juvenile Delinquency Prevention Bodies: Priorities and Prospects in Context of Digitization
Authors: Saenko Ludmila , Nepomnyaschiy Pavel
Published: October 2024

The paper explores one of the priority issues faced by the country and society — preventing child neglect and juvenile delinquency with a special focus on cooperation between bodies for prevention of the deviant behavior. The study comprises an analysis of possibilities to address the problems arising in this regulatory area through the implementation of digital tools such as automated information systems. From this lens, the authors also explore the issue of developing and introducing the modern Profilaktika automated information system. Conceptual provisions for possible use of federal information systems by bodies for prevention of child neglect and maltreatment have been developed. In terms of methodology, analysis and synthesis of statistical information and comparative law are primarily used by the authors. The provisions substantiated by the paper can be useful for development of the relevant regulatory framework.
CHILD HEALTH BOOKLET IN MONITORING AND PROMOTING CHILD HEALTH: CHALLENGES AND STRATEGIES
Authors: Oliveira Francisco Ariclene , Leite Álvaro Jorge Madeiro
Published: October 2024

Promoting child health in Brazil faces significant challenges due to socioeconomic diversity and regional inequalities, impacting the effective use of the Child Health Record. The aim of this study was to analyze the challenges and strategies for the effective use of the Child Health Record in monitoring and promoting child health in Brazil. This is an Integrative Review of the literature, following the PRISMA protocol. Searches were conducted in databases such as LILACS, MEDLINE, BDENF, Redalyc, and SciELO in September 2023. Inclusion criteria: original articles in Portuguese, English, and Spanish, published between 2018 and 2023. Exclusion criteria: reviews, duplicates, theses, dissertations, books, and conference abstracts. The sample consisted of 13 studies. The main emerging thematic categories were: challenges in training health professionals, lack of parental engagement, regional variations in adherence and completion of the record, and strategies to improve its use, such as integration with computerized health systems and continuous training. The Child Health Record is essential for monitoring child health but faces significant challenges that compromise its effectiveness. The implementation of public policies for training health professionals and awareness campaigns for parents is recommended to improve adherence and completion of the record, ensuring healthy and comprehensive child development in Brazil.
Accelerated Heating Paper Pressboard and Transformer Oil for Transformer Aging Assessment
Authors:   Department of Electrical, Electronic and Systems Engineering, Faculty of Engineering & Built Environment, Universiti Kebangsaan Malaysia, Malaysia, Mohamed Ramizi , Abd Halim Syahirah ,   Department of Electrical, Electronic and Systems Engineering, Faculty of Engineering & Built Environment, Universiti Kebangsaan Malaysia, Malaysia, Sahrani Shafrida ,   Institute of Visual Informatics Universiti Kebangsaan Malaysia, Malaysia, Talib Mohd Aizam ,   TNB Labs Sdn Bhd, No. 1, Lorong Ayer Itam, Kawasan Institusi Penyelidikan, 43000 Kajang, Selangor
Published: October 2024

Paper pressboard is one of the main insulating elements that need to be investigated in order to identify the life span of high voltage transformer. In actual condition, the pressboard insulation is sealed in an enclosed metal container and immersed in transformer oil. Over the time, the pressboard insulation will degrade its performance and some part of pressboard polymeric compounds disbursed into its surrounding oil and some parts of oil compounds absorbed into the pressboard. This phenomenon can be analyzed and measured with its degree of polymerization (DP). Where DP is a measure of the chain length of the cellulose macromolecules, and is correlated to the mechanical strength of the paper and also can be correlated to transformer aging assessment. Based on reviews and reports, heat was believed to be the main cause of pressboard degradation in high voltage transformer. The correlation of heat and DP is difficult to obtain while a transformer is under commissioning, as this would need for the transformer to fully dismantle and extract the pressboard at the point of interest; as this is impossible at any circumstances, unless the transformer has undergone forensic investigation if total failure occurred. Therefore, this paper is presenting a technique under accelerated heating process in order to investigate the correlation of degraded paper pressboard and heated transformer oil under an influenced of controlled heat. A newly pressboard paper insulation was cut into pieces and undergone heating process immersed in transformer oil with predetermined heating hours. The pressboard and oil specimens were then put under difference tests, namely DP, furan compound, oil colour, neutralization value and water saturation. The results show good flag above the average until 288 hours heating process with reducing DP value. This give an indication that the heating element was certainly the main parameter of aging process based on the correlation of test parameter versus aging time.
A Recent Jet Impingement PVT Collector Technique Developed (Reversed Circular Flow Jet Impingement): Energy and Exergy Analysis
Authors:   School of Engineering, Faculty of Innovation & Technology,Taylor's University Lakeside Campus, 47500 Subang Jaya, Selangor, Ishak Muhammad Amir Aziat , Ibrahim Adnan ,   Solar Energy Research Institute, Universiti Kebangsaan Malaysia, 43600 Bangi, Selangor, Malaysia, Lim Yun Seng ,   LKC Faculty of Engineering and Science, University Tunku Abdul Rahman, Bandar Sungai Long, 43000, Cheras, Kajang, Malaysia, Amel Djebara ,   Laboratory for The Study of Industrials Energy System Studies (LESEI), Mechanical Engineering Department, Faculty of Technology, University of Batna 2, Algeria, Zouheyr Noui ,   Laboratory for The Study of Industrials Energy System Studies (LESEI), Mechanical Engineering Department, Faculty of Technology, University of Batna 2, Algeria
Published: October 2024

When subjected to solar irradiance, the upsurge in photovoltaic (PV) module temperature has constrained the photovoltaic thermal (PVT) technology’s ability to generate electrical power, thereby affecting its overall PVT efficiency. Jet impingement has proven to be a viable method in improving a PVT collector’s efficiency. This research functions as an extension to the existing established reversed circular flow jet impingement (RCFJI) PVT collector. The present study performed an in-house study to investigate the energy and exergy characteristics of the RCFJI PVT collector outlet configuration. The RCFJI outlet hole was configured into five distinct design settings: one hole (1h), two holes (2h), three holes (3h), four holes (4h), and five holes (5h). The experiment was executed with a uniform irradiance level of 900 W/m2 and flow rate varying from 0.01-0.14 kg/s. As a result, the peak photovoltaic and thermal efficiency achieved using the 1h configuration was 11.09% and 63.2% at 0.14 kg/s. Particularly, the 1h configuration yielded an overall PVT efficiency of 72.35%. The study noted that the optimal flow rate was 0.06 kg/s, leading to the highest exergy of 12.32%. In a nutshell, increasing the RCFJI outlet numbers does not favourably impact the energy efficiency of the RCFJI PVT collector. The significance of this study contributes to the understanding of outlet configuration effects on the RCFJI performance.
File Encryption by Iris Recognition System
Authors:   College Of Computing And Information Sciences, University Of Technology And Applied Sciences, Sultanate Of Oman, Ali Musab A. M. ,   Department of Cybersecurity, International Information Technology University, Almaty, Kazakhstan, Md Tahir Nooritawati ,   Faculty Of Electrical Engineering, Universiti Teknologi Mara (UiTM), Malaysia, Al-Rawe Israa ,   Technical Engineering College, Northern Technical University, Mosul, Iraq
Published: October 2024

This paper designs a framework for an iris recognition system to obtain significant information by encryption and decryption using iris recognition system to improve the security level of stored extended data. Iris feature to confirm the character of an individual person to grant access to the information document. The strategy is extracted using 1D filter Log-Gabor which has high decidability and minimum variance between (inter & intra) class. In this paper, the 1D filter Log-Gabor was applied, the results are based on FAR and FRR, as feature selection models with SVM type nonlinear quadratic as classifiers CASIA datasets were used. The iris image captured by a high-resolution webcam is used to enter a record that identifies the eligible individual as the beneficiary. The prepared image is matched with the registered iris in the dataset and only if a match is found, it is included in the file. It adds to the assortment of information by providing evidence of the usefulness of the iris in verifying the person, it shows that the iris is very reliable. Segmentation specific area only clarifies the exhibit of this exploration work novel strategy among iris segmentation procedures, all together in restricting the pupil before limiting the iris.
Effect of Multiple Orifices of Wave Energy Converter Air Columns Towards Overall Turbine Output
Authors:   Centre for Defence Research & Technology (CODRAT), National Defence University Malaysia (UPNM), Kem Perdana Sungai Besi, Kuala Lumpur, 57000, Malaysia, Mohd Azhar Nurul Afiqah , Jalani Muhamad Aiman ,   Centre for Defence Research & Technology (CODRAT), National Defence University Malaysia (UPNM), Kem Perdana Sungai Besi, Kuala Lumpur, 57000, Malaysia, Abdul Rahman Mohd Rosdzimin ,   Centre for Defence Research & Technology (CODRAT), National Defence University Malaysia (UPNM), Kem Perdana Sungai Besi, Kuala Lumpur, 57000, Malaysia, Ghazali Elyasabath ,   Hydraulic and Instrumentation Laboratory, National Water Research Institute of Malaysia (NAHRIM), Lot 5377, Jln. Putra Permai, Seri Kembangan, 43300, Selangor, Malaysia, Samion Mohd Kamarul Huda ,   Hydraulic and Instrumentation Laboratory, National Water Research Institute of Malaysia (NAHRIM), Lot 5377, Jln. Putra Permai, Seri Kembangan, 43300, Selangor, Malaysia, Imai Yasutaka ,   Institute of Ocean Energy, Saga University, Japan, Saad Mohd Rashdan ,   Centre for Defence Research & Technology (CODRAT), National Defence University Malaysia (UPNM), Kem Perdana Sungai Besi, Kuala Lumpur, 57000, Malaysia,   Department of Aeronautic Engineering & Aviation, Faculty of Engineering, National Defence University Malaysia (UPNM)
Published: October 2024

This study investigated a Wave Energy Converter (WEC) device known as the Backward Bent Duct Buoy (BBDB) by looking at the correlation between the number of orifices toward the power generation efficiency. The BBDB type of WEC has a major potential due to its design simplicity and relatively good performance. However, limited studies have been done regarding the BBDB device compared with other types of WEC, especially on the design of orifices. Thus, the objective of this study was to explore the effect of having a multiple number of orifices on the top panel of the BBDB device toward its power efficiency. It was achieved by designing and fabricating four BBDB top panels with varying number of orifices followed by experimental wave tank tests. The results showed that the top panel with 2 orifices produced the highest efficiency of 39% followed by the top panels with 4 orifices (27%), 1 orifice (23%) and 3 orifices (22%). This leads to the conclusion that top panels with multiple orifices promote better efficiency than single orifice.
Dynamic Modelling and Validation of Tracked Vehicle with In-Track Motor
Authors:   Department of Mechanical Engineering, Faculty of Engineering, National Defence University of Malaysia, Kem Sungai Besi, 57000 Kuala Lumpur, Malaysia, Ruslan Noor Amira Ilyanie , Amer Noor Hafizah ,   Centre of Defense Research and Technology, National Defence University of Malaysia, Kem Sungai Besi, 57000 Kuala Lumpur, Malaysia,   Department of Mechanical Engineering, Faculty of Engineering, National Defence University of Malaysia, Kem Sungai Besi, 57000 Kuala Lumpur, Malaysia, Madzan Nurulhani Adlina ,   Department of Electrical and Electronic Engineering, Faculty of Engineering, National Defence University of Malaysia, Kem Sungai Besi, 57000 Kuala Lumpur, Malaysia, Hudha Khisbullah ,   Department of Mechanical Engineering, Faculty of Engineering, National Defence University of Malaysia, Kem Sungai Besi, 57000 Kuala Lumpur, Malaysia, Abd. Kadir Zulkiffli ,   Department of Mechanical Engineering, Faculty of Engineering, National Defence University of Malaysia, Kem Sungai Besi, 57000 Kuala Lumpur, Malaysia, Syed Mohd Dardin Syed Mohd Fairuz ,   Department of Electrical and Electronic Engineering, Faculty of Engineering, National Defence University of Malaysia, Kem Sungai Besi, 57000 Kuala Lumpur, Malaysia, Mohamed Ishak Saiddi Ali Firdaus ,   Department of Mechanical Engineering, Faculty of Engineering, National Defence University of Malaysia, Kem Sungai Besi, 57000 Kuala Lumpur, Malaysia
Published: October 2024

This paper addresses dynamic modelling and validation of a tracked vehicle, as well as provides an in-depth examination of an in-track DC motor system. The characteristics of the DC motor will be rigorously assessed, providing a foundational understanding to enhance vehicle control and mobility. Furthermore, an independent DC motor controller will be developed through an inverse model database of its characteristics. The model validation process will involve various trajectory types, including right and left turns. The real vehicle was equipped with an Arduino Mega and MPU6050 accelerometer sensor, along with the DC motor controller unit. Data acquisition was developed by integrating Arduino and the MATLAB/Simulink simulation environment. The proposed model was validated by evaluating the Root Mean Square (RMS) of the percentage error between the values of the experiment and the model prediction. It was found that, for right and left turns of the vehicle, the percentage error produced is below 12.7% which shows the model is able to follow the path in real conditions, providing a foundation for future advancements in transportation and autonomous technology.
Simulation Study and Experimental Validation on The Effect of Generator Blade Type and Arrangement on Maximum Torque Generated For Micro Hydropower Generator
Authors:   Department of Aerospace Engineering, Faculty of Engineering, Universiti Putra Malaysia, 43400 UPM Serdang, Selangor, Malaysia, Hazmin Mohd Haniff , Mustapha Faizal ,   Department of Aerospace Engineering, Faculty of Engineering, Universiti Putra Malaysia, 43400 UPM Serdang, Selangor, Malaysia
Published: October 2024

This paper contributes to an ongoing development of a micro hydropower network system tailored for implementation along river networks in Malaysia. The concept involves deploying multiple micro hydropower generators to charge a battery positioned on the riverbank. This interconnected hydropower network work alongside similar network systems to either charge larger batteries or serve multiple communities, enhancing its scalability and utility. The primary aim of this study is to determine a better generator blade type, and explore the relationship between the arrangement of generator blades in the river and the resulting torque generated. An experiment is conducted to determine the superior turbine type. The simulation process integrates engineering simulation software (ANSYS) and 3D modeling software (CATIA). ANSYS is employed to simulate river conditions with specific flow rates, while CATIA facilitates the design of generator blades, subsequently imported into ANSYS for simulation. The objective of the simulation is to identify the blade arrangement yielding the highest maximum generated torque. Subsequently, an experiment involving 3D printing the selected turbine types and measuring their rotational speed under consistent water flow conditions using a digital tachometer is conducted. From the experiment, it is found that curved blade types outperform straight blade types, while from the ANSYS simulation it is found that a distance between generator blades ranging from 300mm to 400mm offers optimal performance. This comprehensive approach enables a thorough evaluation of turbine configurations and their real-world performance, advancing micro hydropower technology for sustainable energy generation along river networks.
Fresh And Hardened Properties of Binary Blend Sustainable Self-Compacting Concrete (SCC) Containing Calcined Eggshell and Silica Fume as Partial Replacement of Cement
Authors:   School of Civil Engineering, College of Engineering, Universiti Teknologi MARA, 40450 Shah Alam, Selangor, Malaysia, Md Zain Mohd Raizamzamani , Lian Oh Chai ,   School of Civil Engineering, College of Engineering, Universiti Teknologi MARA, 40450 Shah Alam, Selangor, Malaysia, Siong Wee Lee ,   School of Civil Engineering, College of Engineering, Universiti Teknologi MARA, Johor Pasir Gudang Campus, 81750 Masai, Johor, Malaysia, Chen Kang ,   Department of Civil Engineering, Xi’an Jiaotong-Liverpool University, EB552 (SIP Campus-Engineering Building (EB)),  Suzhou Industrial Park, Suzhou 215123, P.R. China
Published: October 2024

The current study explored the fresh and hardened properties of sustainable self-compacting concrete (SCC) incorporating calcined eggshell powder (CaESP) and silica fume (SF) as a partial replacement of cement. Waste materials such eggshells, with their high calcium content, have the potential to be used as a cement substitute for SCC. This effort is primarily driven by the restriction of the area of landfills and the desire to reduce greenhouse gas emissions. This study assesses the SCC mixture’s fresh properties, such as workability, passing ability, and segregation resistance, using a multitude of experimental techniques. In addition, the current study also includes an investigation on the hardened properties of the concrete such as compressive and split tensile strengths. SCC cubic specimens with the crosssectional size of 100 x 100 x 100 mm were tested under compression, and cylindrical specimens with dimensions of 50 mm diameter x 100 mm height were tested under split-tensile test for 7 and 28 days of water curing. The test specimens’ failure behaviour was then examined. The experimental results revealed that the compressive strength of SCC with combined ESP and SF attained its maximum strength at volume fractions of 10% ESP and 0% SF. Considering splittensile strength has a direct proportional relationship with compressive strength, the split-tensile strength observation was identical to compressive strength, with 10% ESP and 0% SF reaching the maximum strength under split-tensile strength test. The experimental results into the failure mode of SCC specimens showed that higher percentages of CaESP and SF enhance the susceptibility to cracking in SCC specimens, whereas lower percentages of ESP and SF improve crack resistance. The study’s findings have the potential to elevate the use of waste materials in concrete manufacturing, hence reducing environmental impact and supporting sustainable practices in the construction industry.
Challenges and Strategies of Rural Community Towards Sustainable Development
Authors:   School of Civil Engineering, College of Engineering, Universiti Teknologi MARA Shah Alam, 40450 Selangor, Malaysia, Salleh Afza Razan , Mustaffa Nur Kamaliah ,   School of Civil Engineering, College of Engineering, Universiti Teknologi MARA Shah Alam, 40450 Selangor, Malaysia, Mat Isa Che Maznah ,   Civil Engineering Studies, College of Engineering, Universiti Teknologi MARA Pulau Pinang Branch, Permatang Pauh Campus, Aziz Azizul Salfaizal ,   Yayasan Telekom Malaysia, Level 6, TM Annexe 2, Jalan Pantai Jaya, Wilayah Persekutuan, 59200 Kuala Lumpur, Malaysia
Published: October 2024

Disparities between rural and urban areas continue to face the dilemma of spatial inequality in social and economic development. Sustainable development plays a major role in rural areas since it can improve their quality of life through socio-economic development whilst preserving the environment. This study is conducted to explore the knowledge and attitudes of rural communities towards sustainable development and to determine the challenges and strategies of rural communities on sustainable development. A mixed-method research approach was adopted from 131 respondents from the rural communities supported by interviews with three (3) experts in environmental and sustainability in Malaysia. The data was analyzed by using Statistical Package for the Social Sciences (SPSS) and content analysis. The respondents perceived themselves as having a good level of knowledge and attitudes towards sustainable development, however the experts opined the opposite views. Lack of infrastructure becomes the main challenges for the rural communities in achieving sustainable development and by improving basic utilities and communication services can help the rural communities to have a better lifestyle and sustainable life which are echoed by the experts. This study is significant to improve lifestyle of the rural communities and contribute to the sustainable development of the country.
El análisis de la intervención urbanística en Cartolandia a través del método de la foto-voz
Authors: Pintor-Sandoval Renato , Correa-Ramírez Jhon Jaime
Published: October 2024

This paper addresses the irregular settlement of Cartolandia in Tijuana, Baja California, Mexico in1955, until its eviction in 1972. Using the Photo-voice methodology it allows the interviewees to give voice to the selected photographs. This method helps to rescue studies of oral memory, detecting emotions, events, anecdotes and feedback from the experiences of the actors. It is concluded that the process of gentrification helped the city to redesign its urban fabric, but for the locals, the social stigma and the breakdown of social cohesion and community identity persist.
In Quest of Better Clinicopathologic Correlation in the Diagnosis of Dementia:The Florida Cognitive Assessment
Authors: Nadeau Stephen
Published: October 2024

Introduction: Clinical evaluation of dementia, even by experts, is neither systematic nor optimal and provides a demonstrably inadequate basis for diagnosis of specific underlying pathologies. Post-mortem pathologic evaluation also has serious limitations. As a result, clinicopathologic correlation, even with Alzheimer’s disease and even in a 2024 study, was only 71%. Thus, there is a pressing need for a bedside cognitive evaluation instrument that can potentially improve the accuracy of clinical evaluation. This paper introduces such an instrument, the Florida Cognitive Assessment. Methods: The Florida Cognitive Assessment was designed by a group of experts in behavioral neurology with the aim of providing a profile of cognitive impairment rather than just a score. Over the years, it has been refined on the basis of clinical experience to take maximal advantage of all observed patient behaviors that could signal impairment in particular cognitive domains. Tests specific to all of the most common dementias are included. Results and Discussion: In clinical practice, the Florida Cognitive Assessment, a test that requires 10-15 minutes to administer, has proven to be an invaluable tool in fully characterizing the nature of the cognitive profile and in quickly arriving at a diagnosis of a specific type of dementia that is fully congruent with established criteria. Results have also been congruent with those of neuropsychological testing carried out in particular individuals. The Florida Cognitive Assessment has not been empirically validated. The only truly adequate validation would be in terms of post-mortem neuropathology. Psychometric properties could be quantified and correlation of some test results with those of neuropsychological assessment is feasible. Conclusions: The Florida Cognitive Assessment has already proven to be a very useful tool in providing a means for rapid assessment of the specific domains of impairment in particular individuals with dementia. It has the theoretical potential for substantially improving clinicopathologic correlation.