GSSRR.ORG: International Journals: Publishing Research Papers in all Fields
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Real-Time Adaptive Background-Oriented Schlieren Imaging Algorithm with Spatiotemporal Variability Using Computer Vision and Particle Image Velocimetry
Get PDFThis study presents an advanced Background Oriented Schlieren (BOS) computational system designed for high-efficiency, high-resolution fluid flow visualization on mobile platforms. The system integrates wavelet transformations for multi-scale edge detection, Kalman filtering for noise reduction, and adaptive contrast enhancement using CLAHE. The results demonstrate improvements of 30.6% in edge detection sensitivity, 12.5% in resolution enhancement, and 11% in noise reduction, compared to the standard OpenCV and OpenPIV control algorithm. These metrics were calculated through rigorous image processing techniques, including the Laplacian of the image and gradient magnitude for edge detection, full-width at half-maximum (FWHM) for resolution, signal-to-noise resolution (SNR) for noise, and the Jaccard index for flow visualization accuracy.
The system’s ability to deliver accurate and detailed flow visualizations in real time makes it particularly suited for mobile applications, where computational resources are limited. The combination of wavelet analysis, predictive filtering, and adaptive contrast enhancement offers a robust solution for capturing subtle flow patterns, making this approach a significant advancement in BOS technology, with potential application in experimental fluid dynamics, aerodynamic testing, and environmental monitoring
Effect of Core Stability with Proprioceptive Neuromuscular Facilitation (PNF) on Standing Balance in Post Stroke Patients
Get PDFStroke patients will experience a situation where the ability to move will be increasingly reduced, such as sensory disturbances, mental, consciousness, weakness in the limbs that cause difficulty standing and walking which causes balance to be disturbed and most fatally causes death. Balance disorders experienced by post- stroke patients are caused by the absence of good cooperation in the sensory system such as visual, somatosensory including proprioceptors, and vestibular and musculoskeletal which are muscles, joints, and tissues regulated by the brain so that different responses occur to changes in internal and external conditions. Stroke or Cerebro Vascular Accident (CVA) is a central nervous system disorder that most commonly causes impaired functional activity as a result of coordination disorders, balance disorders, body control disorders, sensory disturbances, and movement reflex disorders that will decrease the individual\u27s ability to perform daily activities. This study aims to determine the effect between core stability and Proprioceptive Neuromuscular Facilitation (PNF) on the standing balance of post-stroke patients at the Stroke Center Hospital. With a quasi-experimental research method with a pretest – posttest two group design, with sampling using the Slovin formula. The number of samples was 30 post-stroke patients who met the inclusion criteria of 32 people and then randomly divided into 2 groups, namely Proprioceptive Neuromuscular Facilitation (PNF) as many as 15 people and Core Stability as many as 15 people.
Based on the results of this study, it can be concluded that there is a significant effect of core stability training on improving standing balance in post-stroke patients at the Stroke Center Hospital. In addition, the Proprioceptive Neuromuscular Facilitation (PNF) technique also has a positive impact on the standing balance of post-stroke patients at the same location. Furthermore, it was found that there was a difference in effectiveness between the two methods, where Proprioceptive Neuromuscular Facilitation (PNF) showed more effective results compared to core stability in improving standing balance in post-stroke patients. These results provide important insights into rehabilitation interventions that can be optimized to improve balance in post- stroke patients
The Phenomenological, Structural Synthesis Methodology for Art Theory
Get PDFThis paper reflects the practical importance of phenomenological, structural synthesis methods, which are universal research methods based on phenomenological methods. Also, the possibility of using this method in the interpretation of works of art was raised. In addition, phenomenological and structuralist synthesis method is explained within the framework of art theory, strengthening the possibility of using it within the popular categories of philosophy called Corporeality, anthropology and cultural studies
Using Snubber Circuits in a Brushless Exciter Will Reduce Voltage Commutation Spikes
Get PDFIn a brushless exciter with a multi-phase bridge rectification system, diodes open and close periodically. When a diode turns off, a commutation voltage spike is generated by the internal AC winding inductance of the machine. Voltage spikes can be detrimental to the health of the diodes that are operating in the machine. A diode can fail short in the reverse direction if its reverse recovery voltage is exceeded, or it can fail open due to excessive current in the forward direction. Voltage commutation spikes are known to occur with various amplitude in shaft voltage to ground with static excitation systems and exciter field voltage to ground in brushless excitation systems. This paper evaluates the phenomena of voltage commutation spikes and presents a snubber circuit as a robust solution that can reduce the amplitude of the spikes. Consequently, prolonging the life of the diode and allows it to function as designed at optimal level
Construction Sustainability of Building Based on WEB
Get PDFConstruction with a floor height of over 20m has high complexity and risk. Almost all activities have dangerous risks that must be planned early so that they can be anticipated and controlled during implementation, including the availability of standard operational procedures (SOP) and personal protective equipment (PPE). The construction safety management system containing the construction safety plan must be designed earlier and more accessible to apply. Construction safety planning has received less attention and more focus on implementation because the provider does not understand it, which is considered difficult to implement. Based on these problems, it is necessary to carry out construction safety planning for building work to minimize construction accidents at the project site so that it runs optimally and has zero accidents during construction. The WEB-based application aims to make it easier to use in planning construction sustainability. This article aims to design construction safety stages in building projects and analyze factors in construction safety planning in WEB-based building projects. The data analysis and discussion were carried out with 5 (five) explanations regarding the preparation stages in making a Construction Safety Plan, namely Leadership and Workforce Participation in Construction Safety, Construction Safety Planning, Construction Safety Support, Construction Safety Operations, and Implementation Performance Evaluation. Construction safety planning needs to plan and complete construction safety according to the conditions of the building project. In construction safety planning, it is necessary to analyze using the HIRARC method to prevent and minimize potential dangers. Hazard identification, risk assessment, and risk control are part of the risk management analysis, which is the basis of the Occupational Safety and Health Management System (SMK3). Then, the HIRARC method assessment results were obtained: 26 variables with low risk, 57 with medium risk, and 21 with high risk. The WEB design results begin with needs analysis, system design, implementation, testing, maintenance, and monitoring
Assessment of B. subtilis Toxicity in Wistar Rats through the Intraperitoneal Route
Get PDFThe effect of exposing wistar rats to insecticidal strains of B. subtilis was evaluated in this study to determine the safety of the strain as a biocontrol agent. Z. variegatus were collected from the university agricultural fields with the aid of an insect sweep net, brought to the lab, allowed to acclimatize and watched for the onset of diseased symptoms. The entomopathogenic bacteria was isolated from diseased Zonocerus variegatus and entomopathogenicity was confirmed through reinfection of healthy batch. Diseased Zonocerus variegatus were removed for microbial analysis and B. subtilis was fingered as the main entomopathogen. The microbe was cultured in liquid media, allowed to sporulate, centrifuged and washed with saline buffer. The optimal dose of the bacteria was prepared and introduced into the experimental animals through the intraperitoneal route. Animals were watched for five days before the tissues and organs were taken for hematological and histopathological analysis. Histopathological analysis showed benign effect of the microbe on the experimental animals – a further testimony to the assertion that most entomopathogenic microbes are non-lethal to other non-target animals within the environment thus making B. subtilis a potential candidate for the preparation of microbial pesticides
Review of Technical and Vocational Institution Educators’ Critical Thinking Competencies and the Moderating Effect of Leadership Support
Get PDFThis review article highlights the increasing focus on developing critical thinking skills in technical and vocational education, underscoring the crucial role of educators\u27 competencies and leadership support in this process. Drawing on research from nursing and higher education, the review presents a wide array of strategies for enhancing critical thinking, such as project-based learning and technology-enhanced tools, that can address existing gaps in vocational curricula. Supporting leadership is essential for successfully implementing these strategies, with effective leadership being linked to improved teaching confidence, innovative curriculum design, and better student engagement. Including insights from nursing and higher education enriches the understanding of critical thinking\u27s universal significance and offers a diverse set of adaptable strategies for vocational education. The review concludes by emphasizing the importance of critical thinking competencies for educators and the significant impact of leadership support. It calls for continued research into effective development strategies and their long-term effects on student success. This multidisciplinary approach highlights the need to adapt educational practices to meet the modern workforce\u27s demands, positioning critical thinking as a pivotal element in preparing students for future challenges and opportunities
Revealing the Dominant Risk Factor for Hepatitis B in Pregnant Women at the Waena Health Center, Jayapura City
Get PDFBackground: Hepatitis B is an infection of the Hepatitis B virus through fluids and blood. The incidence of Hepatitis B in pregnant women is influenced by the age of first marriage, ethnicity, education, occupation, parity, history of blood transfusions, history of Hepatitis B immunization, hepatitis B status of sexual partners, and family history of living in the same house. Objective: To reveal the dominant risk factor for Hepatitis B in pregnant women at the Waena Health Center, Jayapura City.Method: Type of case-control study with a population of 48 pregnant women. Data were obtained using questionnaires, medical records, chi-square analysis, Odds Ratio, and logistical binary regression. Results: A significant factor affecting the incidence of hepatitis B in pregnant women was the hepatitis B status of sexual partners (p-value 0.007; OR = 12,143; CI 95% (1,947 – 75,736). An insignificant factor with the incidence of hepatitis B in pregnant women was tribe (p-value 1,000; OR = 0.880), education (p-value 1,000; OR = 1.546), family history of living in the same house infected with hepatitis B (p-value 0.441; OR = 3,182), hepatitis B immunization (p-value1,000; OR = 1,375). The dominant factor for the incidence of hepatitis B in pregnant women is the status of Hepatitis B in sexual partners. Conclusion: The status of Hepatitis B in couples is dangerous to pregnant women and fetuses, so the prevention of Hepatitis B needs to be increased through screening for infectious diseases
Improvement Strategy Service Functional Eligibility Certificate Using the AHP Method
Get PDFFailure building is one? worry for owner building. There is usually failure because of errors in planning, so the government makes an effort to enforce regulation of SLF applications. The goal is to ensure a level of safety, convenience, and health building. However, in implementation publishing, there are inhibiting factors. The objective of the study is to develop improvement strategies for SLF service. The AHP method is used as evaluation in compile priority, which is later level 80% priority is used for developing strategies through the Triangulation Method. For priorities selected as follows: implementation of SLF socialization; existence building Regional Regulation; fulfillment of admin and technical requirements; HR competency who understands SLF response building owner; availability of consultant; concern public against SLF; coordination between service technical; completeness tool help inspection building eligibility; completeness document licensing; standardization to mechanism evaluation. For the sake of improving SLF services in Jember Regency, then the strategy can be taken is need procurement socialization of the importance of SLF in society, information building regulations are tightened and distributed in a way evenly, necessary good coordination? between departments, consultants, and applicants. Besides that, additional human resources are needed for officer SLF issuance to speed up the implementation process
Development and Enhancement of Autonomous Mobile Robots Using Reinforcement Learning: Improving Navigation and Obstacle Avoidance in Small-Scale Industrial Settings
Get PDFThe rapid development and integration of Autonomous Mobile Robots (AMRs) have revolutionised industries by enhancing automation capabilities. A critical challenge in this evolution is achieving effective navigation and obstacle avoidance, essential for deploying AMRs seamlessly in varied environments. This paper presents a detailed exploration of AMR navigation and obstacle avoidance advancements through the application of reinforcement learning, specifically focusing on small-scale Sri Lankan manufacturing facilities. The study demonstrates the effectiveness of Q-learning in managing dynamic obstacles within a factory environment. The AMR avoided obstacles in 36 out of 50 test runs, achieving a 72\% success rate, and maintained an average distance of 12 cm from each obstacle, underscoring the algorithm\u27s precision in maintaining safe navigation paths while dynamically adapting to environmental changes. The continuous monitoring by ultrasonic sensors, combined with iterative learning, enabled the robot to refine its decision-making process and efficiently navigate through the environment. This paper also provides a comprehensive examination of conventional methods, tracing their historical development and assessing their role in addressing real-world challenges. The results highlight the significant improvements brought by reinforcement learning, particularly when integrated with sensor fusion and motor control technologies, to enhance navigation and dynamic object collision avoidance