Results 21 to 30 of about 70,662 (259)
A 17 Year Old With Developmental Delay Presenting With Increasing Confusion and Imbalance
Annals of Clinical and Translational Neurology, EarlyView.ABSTRACT Methylmalonic acidemia is an autosomal recessive genetic disorder primarily caused by defects in methylmalonyl‐CoA mutase and cobalamin (vitamin B12) metabolism. These defects disrupt the tricarboxylic acid cycle and oxidative phosphorylation, leading to the abnormal accumulation of metabolic products such as methylmalonic acid, propionic acid,
Wei Zhao, Yingli Zhang, Hongliang Zheng
wiley +1 more source
Optimization of traction characteristics of agricultural tractors
Traktory i sel hozmashiny, 2017 The productivity of the machine-tractor unit depends on the energy saturation of the tractor. It is assumed that the optimum traction characteristic corresponds to the minimum operating weight of the tractor and its maximum energy saturation, at which the maximum productivity of the machine and tractor unit is achieved with the lowest fuel consumption ...
V. A Samsonov, Yu. F Lachuga
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Advanced Engineering Materials, EarlyView.A two‐dimensional multiscale finite element analysis framework was established for the first‐generation MoSiBTiC alloy, and the mechanical and fracture‐related parameters of the constituent phases were calibrated through experiments and simulations. The framework provides a basis for analyzing crack propagation behavior in its complex microstructure ...
Junfeng Du +4 more
wiley +1 more source
Advanced Engineering Materials, EarlyView.This work shows that the mechanical performance of multimaterial digital light processing (DLP) printed thermoset composites is governed by resin compatibility and interfacial design rather than spatial patterning alone. Brittle and ductile resin combinations produced premature interfacial failure, while graded interfaces and mechanically compatible ...
Ahmed M. H. Ibrahim +3 more
wiley +1 more source
Study on Traction Characteristics of Point Contact State under Oil–Air Lubrication
LubricantsOil–air lubrication technology is commonly utilized in the lubrication design of traditional components to reduce friction between contact pairs. This study focuses on testing the point-contact friction pairs of two quantitative valves using a self-made ...
Bing Su, Han Li, Jiongli Ren, Zeyu Gong
doaj +1 more source
TRACTION CHARACTERISTICS OF A TRACTOR WITH HIGH ENERGY SATURATION
OF THE VIII INTERNATIONAL SCIENTIFIC AND PRACTICAL CONFERENCE «INNOVATIVE TECHNOLOGIES IN SCIENCE AND EDUCATION» («ITSE 2020» CONFERENCE), 2020 The efficiency of the machine-tractor unit depends on the operational energy saturation of the tractor, which is determined by the optimal ratio of the engine's operating power to the tractor's operating weight. The operational energy saturation depends on the operation performed. Conditional energy saturation is a constant indicator equal to the ratio
V.A. Samsonov, Y.F. Lachuga
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Advanced Functional Materials, EarlyView.Multiscale experiments and modeling reveal how Ti3C2Tx MXene nanosheets reinforce PVDF nanocomposites. An optimal MXene loading (∼1 wt.%) nearly doubles tensile strength through efficient stress transfer, flake alignment, and crack‐deflection mechanisms, transforming ductile polymer behavior into a controlled multi‐stage fracture pathway which aligns ...
Bita Soltan Mohammadlou +5 more
wiley +1 more source
THE TRACTION ELECTRIC OPERATION AND ITS EXPLOITATION ABILITIES
Nauka ta progres transportu, 2011 The possibilities of asynchronous traction electric motor drive are considered at the certain coupling mass taking into account the coupling restrictions.
V. M. Bezruchenko, O. A. Khoroshko
doaj
Research on traction load forecasting of electrified railway
机车电传动, 2023 In order to ensure the power quality of traction power supply system and reduce the costs for purchasing electricity by traction substation, a probabilistic forecasting model of traction load based on sparse Gaussian process (SGP) is proposed.
LIU Fu, LIAO Qishu
doaj
Evaluation of Property Difference between Traction Oil and Traction Grease
Journal of Advanced Mechanical Design, Systems, and Manufacturing, 2009 In this paper, the characteristics of traction grease are evaluated. The difference in film formation ability between traction oil and traction grease is focused on, and the state of film formation and the traction coefficient of traction oil and two ...
Masashi YAMANAKA +3 more
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