Nucleonic coal detector with independent, hydropneumatic suspension [PDF]
The design of a nucleonic, coal interface detector which measures the depth of coal on the roof and floor of a coal mine is presented. The nucleonic source and the nucleonic detector are on independent hydropneumatic suspensions to reduce the measurement
Handy, K., Jones, E. W.
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Environmental Stability and Electronic Properties of Individual Flakes of Ti2CTx MXene
Advanced Electronic Materials, EarlyView.The paper presents a synthesis of large Ti2CTx MXene flakes with sizes reaching 40 µm and examines their environmental stability and electronic behavior. It demonstrates that monolayer flakes degrade rapidly in ambient conditions, leading to semiconducting‐like behavior with low conductivity and mobility. In contrast, multilayer flakes exhibit enhanced
Md. Ibrahim Kholil +5 more
wiley +1 more source
Modelling and Validation of a Regenerative Shock Absorber System [PDF]
— For effective energy regeneration and vibration dampening, energy regenerative suspension systems have received more studies recently. This paper presents the dynamic modeling and a test system of a regenerative shock absorber system which converts ...
Ball, Andrew +5 more
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Pressure‐Induced Structural and Magnetic Evolution in Layered Antiferromagnet YbMn2Sb2
Advanced Electronic Materials, EarlyView.Pressure tunes the delicate balance between structure, magnetism, and electronic states in quantum materials. In YbMn2Sb2, high‐pressure X‐ray and neutron diffraction reveal a trigonal‐to‐monoclinic transition near 3.5 GPa, accompanied by unconventional magnetic ordering.
Mingyu Xu +9 more
wiley +1 more source
Development of an interface for an ultrareliable fault-tolerant control system and an electronic servo-control unit [PDF]
The NASA Ames Research Center sponsors a research program for the investigation of Intelligent Flight Control Actuation systems. The use of artificial intelligence techniques in conjunction with algorithmic techniques for autonomous, decentralized fault ...
Shaver, Charles, Williamson, Michael
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Graph‐based imitation and reinforcement learning for efficient Benders decomposition
AIChE Journal, EarlyView.Abstract This work introduces an end‐to‐end graph‐based agent for accelerating the computational efficiency of Benders Decomposition. The agent's policy is parameterized by a graph neural network, which takes as input a bipartite graph representation of the master problem and proposes a candidate solution.
Bernard T. Agyeman +3 more
wiley +1 more source
Dual-channel Potential Energy Recovery and Load Balancing Methods for Large Hydraulic Excavators
工程科学与技术Objective When recovering potential energy based on load balancing, the usual expectation is that the load force and the hydraulic force provided by the accumulator are fully balanced so as to reduce the energy provided by the hydraulic system.
Weiping WANG, Shun LU
doaj
Space shuttle pogo studies [PDF]
Topics covered include: (1) pogo suppression for main propulsion subsystem operation; (2) application of quarter-scale low pressure oxidizer turbopump transfer functions; (3) pogo stability during orbital maneuvering subsystem operation; and (4) errors ...
Coppolino, R. N., Lock, M. H., Rubin, S.
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A Computational Approach for Biomimetic Design of Liver‐On‐A‐Chip
Advanced Intelligent Discovery, EarlyView.A biomimetic liver‐on‐a‐chip with antiparallel perfusion was designed using COMSOL‐guided simulation to replicate hepatic acinus transport. Full‐scale modelling revealed diffusion‐dominated, length‐dependent nutrient gradients and low‐shear conditions.
Zhenxu Yang +9 more
wiley +1 more source
The design of a mechanical referencing system for the rear drum of the Longwall Shearer Coal Miner [PDF]
The design of two systems which reference the position of a longwall shearer coal miner to the mine roof of the present cut and of the last cut are presented.
Jones, E. W., Yang, T. C. H.
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