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CFD estimation of HDCs for varying bodies of revolution of underwater gliders

  • R.V. Shashank Shankar;R. Vijayakumar
    • Ocean Systems Engineering
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    • v.13 no.3
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    • pp.269-286
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    • 2023
  • Autonomous Underwater Gliders (AUGs) are a type of Underwater Vehicles that move without the help of a standard propeller. Gliders use buoyancy engines to vary their weight or buoyancy and traverse with the help of the Lift and Drag forces developed from the fuselage and the wings. The Lift and Drag Coefficients, also called Hydrodynamic coefficients (HDCs) play a major role in glider dynamics. This paper examines the effect of the different types of glider fuselages based on the bodies of revolution (BOR) of NACA sections. The HDCs of the glider fuselages are numerically estimated at a low-speed regime (105 Reynolds Number) using Computational Fluid Dynamics (CFD). The methodology is validated using published literature, and the results of CFD are discussed for possible application in the estimation of glider turning motion.

Advances in pediatric dentistry: new approaches to pain control and anxiety reduction in children - a narrative review

  • Ravi Vijaya Remi;Athimuthu Anantharaj;Prasanna Praveen;Rani Shankarappa Prathibha;Ramakrishna Sudhir
    • Journal of Dental Anesthesia and Pain Medicine
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    • v.23 no.6
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    • pp.303-315
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    • 2023
  • Painless treatment determines the quality of pediatric dental care. Although local anesthesia has been used to manage pain in dentistry, children often cite traditional aspirating syringes as a symbol of fear and pain. Adequate pain control during dental procedures may help alleviate fear and anxiety and instill positive oral health attitudes in children. Newer approaches such as intranasal spray, centbucridine, jet injectors, buzzy devices, and acupressure have been developed to help dentists provide near-painless injections while reducing dental anxiety. This review aims to summarize newer approaches to alleviate pain and anxiety in children.

Factors Influencing the quality of life of lung transplant patients (폐이식 환자 삶의 질 영향 요인)

  • Hwang, Byung Hee;Min, Hye Sook
    • Journal of Korean Critical Care Nursing
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    • v.16 no.3
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    • pp.73-86
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    • 2023
  • Purpose : This study aimed to identify the factors affecting the quality of life of lung transplant patients. Method : The participants were patients who received lung transplants at a general hospital in City Y. Data were collected through structured questionnaires from June 2023 to August 2023. General characteristics, lung transplantation-related characteristics, quality of life, functional disability, treatment compliance, social support, anxiety, and depression-were measured. For data analysis, hierarchical multiple regression was performed using SPSS/WIN 29.0. Results : In the final model, quality of life was associated with income, self-help group attendance, functional disability, social support, treatment compliance, and anxiety and depression. Together, they explained 61.2% of the total variance in the results. Conclusion : Our findings suggest that improving lung transplant patients' quality of life requires active intervention in stress management to perform treatment instructions well, a social support system that can help them financially, and encouraging and participating in social activities as patients.

OFF-SITE MANUFACTURE OF APARTMENT BUILDINGS

  • Neville Boyd
    • International conference on construction engineering and project management
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    • 2011.02a
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    • pp.304-310
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    • 2011
  • The populations of major cities in Australia are increasing rapidly and facing an acute housing shortage. Traditional apartment procurement techniques involve lengthy lead-times and factory-based, or offsite manufactured (OSM) multi-storey apartment buildings may offer the opportunity to help fulfill the need by significantly reducing build times. Other advantages of OSM may include superior quality, low weight ratios, economies of scale achieved through repetition of prefabricated units, use on infill sites, sustainable design standards and better occupational health and safety. There are also positive labour and training implications, which may help to alleviate an industry-wide shortage of skills through use of semi-skilled labour. Previous uncertainties about the adoption of offsite due to the high capital costs and perception issues were generally based on pre-cast concrete structures, which are quite a different building type in terms of flexibility, construction, delivery and finishes. Identification of drivers and constraints assists in the determination of current industry status, allows for a benchmark to be established and future opportunities and directions for OSM to be determined.

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Smart Health Monitoring System (SHMS) An Enabling Technology for patient Care

  • Irfan Ali Kandhro;Asif Ali Wagan;Muhammad Abdul Aleem;Rasheeda Ali Hassan;Ali Abbas
    • International Journal of Computer Science & Network Security
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    • v.24 no.3
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    • pp.43-52
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    • 2024
  • Health Monitoring System is a sophisticating technology and another way to the normal/regular management of the health of the patient. This Health Monitoring Mobile Application is a contribution from our side to the public and to the overall health industry in Pakistan. With the help of Health mobile application, the users will be able to store their medical records, prescriptions and retrieve them later. The users can store and keep track of their vital readings (heart rate, blood pressure, fasting glucose, random glucose). The mobile application also shows hospitals that are nearby in case the user wants to avail of any medical help. An important feature of the application is the symptoms-based disease prediction, the user selects the symptoms which he has and then the application will name certain diseases that match those symptoms based on relevant algorithms. The major advances and issues have been discussed, and as well as potential tasks to health monitoring will be identified and evaluated.

Potential Prebiotic Properties of Whey Protein and Glycomacropeptide in Gut Microbiome

  • Bryna Rackerby;Hoang Ngoc M. Le;Avery Haymowicz;David C. Dallas;Si Hong Park
    • Food Science of Animal Resources
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    • v.44 no.2
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    • pp.299-308
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    • 2024
  • Proteins in whey have prebiotic and antimicrobial properties. Whey protein comprises numerous bioactive proteins and peptides, including glycomacropeptide (GMP), a hydrophilic casein peptide that separates with the whey fraction during cheese making. GMP has traditionally been used as a protein source for individuals with phenylketonuria and also has prebiotic (supporting the growth of Bifidobacterium and lactic acid bacteria) and antimicrobial activities. GMP supplementation may help positively modulate the gut microbiome, help treat dysbiosis-related gastrointestinal disorders and improve overall health in consumers.

Helping People with Visual Disability Using AI

  • Naif Al Otaibi;Tariq S Almurayziq
    • International Journal of Computer Science & Network Security
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    • v.24 no.1
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    • pp.205-208
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    • 2024
  • Artificial Intelligence (AI) technology has evolved rapidly in recent years and is used in everything from banking to email management to surgery, but without the help of the visible, most of the fun features of the Internet include visual impairment. It benefits people with disabilities. The main purpose of this study is to find ways to help people with visual impairments using AI technology. A visually impaired request is made for the visually impaired. For example, when a message arrives that the program will notify you by voice (reads the sender's name, read the message, and replies to it if necessary), this is a special program installed on your mobile phone. This program uses a customized algorithm developed in Python to convert written text to voice, read text, and convert voice to written text on a message when a visually impaired person wants to respond. Then it sends the response in the form of a text message. Therefore, the research should lead to programs for people with visual impairments. This program makes mobile phones easier and more comfortable to use and makes the daily life easier for visual impairments.

How Customer Adaptability Factors Affect Information Systems for Transportation: Vehicle Scheduling Models with Time Flexibility

  • Soonhui Lee
    • Asia pacific journal of information systems
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    • v.27 no.1
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    • pp.1-17
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    • 2017
  • The need for effective information systems that can help in efficient transportation management has become essential. This study presents the potential benefits of developing a decision support system used by a trucking company for routing and scheduling. Our study investigates how customer exibility factors affect the utilization of transportation resources and establishes a vehicle scheduling model for better allocation of transportation resources with a time window. The results show vehicle savings from 25% up to 70% per day given different levels of exibility in delivery times. Increased capacity utilization can be achieved by considering only customer exibility in the model. Our study implies that incorporating customer exibility into the information system can help transportation organizations have the capability to gain control over management to cut costs and improve service.

Predictive factors of substance misuse and abuse in South Korean adolescents: a secondary data analysis of the 2021 Youth Risk Behavior Web-based Survey

  • So Yeon Park
    • Child Health Nursing Research
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    • v.30 no.1
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    • pp.67-74
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    • 2024
  • Purpose: This study aimed to identify the general characteristics and health behaviors of students with non-therapeutic substance use. Methods: This secondary data analysis used data from the 17th Korea Youth Risk Behavior Web-based Survey (2021). Analyses of the 54,848 adolescents used descriptive statisics, the Rao-Scott χ2 test, and logistic regression. Results: The risk factors for substance use among students were anxiety, loneliness, living separately from family, suicidal ideation, e-cigarette use, and high stress. Conclusion: The findings help identify the risk factors for non-therapeutic drug use among adolescents. Since South Korea does not have a drug prevention program for its adolescent population, an educational plan based on these findings could help prevent adolescent substance abuse.

Trends and Future Prospects of AI Technologies for Building Energy Management (건물 에너지 관리를 위한 인공지능 기술 동향과 미래 전망)

  • J. Jeong;W.K. Park
    • Electronics and Telecommunications Trends
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    • v.39 no.4
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    • pp.32-41
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    • 2024
  • Building energy management plays a crucial role in improving energy efficiency and optimizing energy usage. To achieve this, it is important to monitor and analyze energy-related data from buildings in real time using sensors to understand energy consumption patterns and establish optimal operational strategies. Because of the uncertainties in building energy-related data, there are challenges in analyzing these data and formulating operational strategies based on them. Artificial intelligence (AI) technology can help overcome these challenges. This paper investigates past and current research trends in AI technology and examines its future prospects for building energy management. By performing prediction and analysis based on energy consumption or supply data, the future energy demands of buildings can be forecasted and energy consumption can be optimized. Additionally, data related to the surrounding environment, occupancy, and other building energy-related factors can be collected and analyzed using sensors to establish operational strategies aimed at further reducing energy consumption and increasing efficiency. These technologies will contribute to cost savings and help minimize environmental impacts for building owners and operators, ultimately facilitating sustainable building operations.