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Showing 1 to 16 of 16 for “"Weight estimation"”.
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Weight Estimation of Electronic Power Conversion Systems
… to develop low-cost architectures which reduce weight, increase efficiency and improve reliability of the system. However, how to evaluate different architectures and select a better one is still not clear. This thesis presents a procedure to estimate weight of electronic power conversion …
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Principal Component Regression for Construction of Wing Weight Estimation Models
… the lessons learned from fitting the wing weight data of 41 subsonic transports by three types of interpolation methods---least polynomial interpolation, radial basis function interpolation, and Kriging interpolation. The objective of this thesis is to develop an automatic procedure of …
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Validation of weight estimation by age and length based methods in the South African population
… These calculations are most often based on weight, which is a difficult parameter to obtain. It is rare that one is able to weigh a child before a resuscitation. There are many different methods available for weight estimation. Most of these are formulae based on age but length based tools …
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The validation of the mid-upper arm circumference measurement in adults as a weight estimation tool in a high HIV prevalence setting
Background Accurate weight estimation in emergency centres is important to ensure accurate treatment and limit adverse outcomes. The mid-upper arm circumference (MUAC) as a weight estimation tool has recently expanded to adults. The MUAC's ease of use and cost effectiveness could be beneficial to …
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Accuracy of estimated fetal weight using ultrasound at term in pregnant women diagnosed with gestational and pre-gestational diabetes at Groote Schuur Hospital
… risk of perinatal complications with a fetal weight at birth of more than 4 000 g, especially if macrosomia occurs in the context of diabetes. In order to predict fetal macrosomia, fetal weight estimation remains an important component of antenatal surveillance. Despite the relative inaccuracy …
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Fusion of correlated information in multifidelity aircraft design optimization
… involves the construction of three separate wing weight estimation models that simplify different aspects of the wing sizing problem, thereby creating a scenario where model fidelities are not confined to a rigid hierarchy. The second stage involves the establishment of a formal definition of …
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AI-ML Powered Pig Behavior Classification and Body Weight Prediction
… focuses on activity classification and body weight prediction in pigs. Activity monitoring is essential for understanding the health and growth of pigs. To automate this task effectively, we propose efficient and accurate sensor-based deep learning (DL) solutions. Among these, the 2D Residual …
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Comparative Evaluation of Propulsive Power Transmission Technologies for High-Speed Vertical Takeoff and Landing (HSVTOL) Cargo Aircraft
… methodology for transmission sizing and weight estimation, ultimately revealing the most suitable transmission type for HSVTOL applications across varying weight ranges, thereby offering valuable guidance for future design endeavors. Within this technical scope, the weight of hydraulic …
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Development of a Multi-Disciplinary Design Optimization Framework for a Strut-Braced Wing Transport Aircraft in PACELAB APD 3.1
… number of 0.78. The aerodynamics, engine size / weight estimation and structural modules were heavily modified and extended to accomplish this. Comparisons to results for the same mission generated with FLOPS and VT MDO are also discussed. For the strut-braced configuration, large fuel savings on …
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Design and assessment of a super high speed, hybrid hydrofoil/SWATH crew boat
… of the manned module, internal arrangements, weight estimation, speed profile determination and engine selection. The hydrofoil design phase limits on resizing the four surface-piercing super-cavitating hydrofoils to keep the vessel even keel at maximum speed. To achieve this, the front foils …
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Structural Optimization and Design of a Strut-Braced Wing Aircraft
… wing structures could suffer from a significant weight penalty. Thus, the use of an external strut or a truss bracing is promising for weight reduction. Due to the unconventional nature of the proposed concept, commonly available wing weight equations for transport aircraft will not be …
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Use and management of energy resources from Water, Energy, and Food (WEF) nexus perspective: The case of Vhembe District Municipality (VDM), Limpopo Province
… and IBMR SPSSR Statistics version 28 based on weight estimation and multinomial logistic regression approaches. Biomass and mains electricity are the main sources of energy, with energy stacking being a universal strategy observed in majority of households. Renewable energy sources such as …
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Intelligent Flight Control Systems Using Adaptive Deep Neural Networks and Concurrent Learning-Based Design Methods
… algorithm, which combines online adaptive DNN weight adaptation with offline batch-like training updates using a recorded data stack. The analysis focuses on the closed-loop performance improvements resulting from the use of optimum CL data-selection algorithms, which ensure that the recorded …
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Salt stress responses in pear and quince: physiological and molecular aspects
… were collected and organs separated for dry weight estimation and mineral analyses (Cu, Fe, Mn, Zn Mg, Ca, K, Na and Cl). Mineral contents have been affected by salinity; same macro/micro nutrients were altered in some organs or relocated within the plant. This plant response could have …
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Integration of Traffic and Structural Health Monitoring Systems Using A Novel Nothing-On-Road (NOR) Bridge-Weigh-In-Motion (BWIM) System
… bridges' integrity and safety further. Bridge weight-in-motion (BWIM) is a system that takes the instrumented bridges as a scale and uses the structure response to compute the trucks' weights with no interruption in the traffic. In a particular type of BWIM, called nothing-on-road BWIM …
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Ultrasound prediction of large fetuses. Epidemiological and clinical investigations
The proportions of newborns with a birth weight (BW) >4,000 g and of macrosomic newborns (BW >4,500 g) have increased during the last two decades, parallel with an increasing maternal pre-pregnancy body mass index (BMI) and age at the time for pregnancy. Delivery of a large fetus, especially >4,500 …