Results 41 to 50 of about 11,379 (251)
Borophene‐based sensing platforms: Pioneering ultrasensitive detection
FlexMat, EarlyView.Schematic Diagram of Performance Optimization Strategies and Sensing Application Characteristics of Two‐Dimensional Boron‐Based Materials in Novel Sensors. Abstract Borophene is an emerging two‐dimensional (2D) material. Since significant breakthroughs were achieved in the experimental synthesis of borophene, the exploration and development of ...
Chi Yuan, Yanpeng Ji, Yi Liu, Guoan Tai
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Simulation Study on Compound Percussion Frequency Matching Characteristics
Shiyou jixie, 2019 There are many researches on the traditional axial impact rock breaking and torsional impact rock breaking mechanism. But researches on the rock breaking mechanism of compound percussion drilling are few and are still in infancy state.
Li Yumei +4 more
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Analysis on the mechanism of sound production and effects of musical flue pipe
Cognitive Computation and Systems, 2022 String instruments, wind instruments and percussion instruments are three traditional categories of musical instruments, among which wind instruments play an important role. Usually, pitches of wind instruments are determined by the vibrating air column,
Jing Jiang +4 more
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Journal of Quaternary Science, EarlyView.ABSTRACT The cave of Les Pradelles (Marillac‐le‐Franc, France) was repeatedly visited by Neandertals ~55 000 years ago and is a key site in discussions of Neandertal cannibalism. Excavations between 1967 and 1980 (Vandermeersch) and between 2001 and 2013 (Maureille/Mann) produced a rich faunal assemblage (>20 000 bones), alongside Quina Mousterian ...
Pauline Raymond +7 more
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Shock and Vibration, 2017 Based on an optimized lunar regolith coring bit (LRCB) configuration, the load characteristics of rotary-percussive drilling of lunar rock simulant in a laboratory environment are analyzed to determine the effects of the drilling parameters (the ...
Peng Li +3 more
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Movement Disorders Clinical Practice, EarlyView.Abstract Background Corticobasal syndrome (CBS) is a progressive neurodegenerative condition characterized by asymmetric limb rigidity, apraxia, dystonia, and myoclonus, with no approved symptomatic or disease‐modifying drug treatments. Neurologic music therapy (NMT)® employs evidence‐based techniques targeting sensorimotor rehabilitation, and high ...
Kyurim Kang +4 more
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Наука и техника, 2012 The aim of this paper is theoretical and experimental studys of a percussion and subsequent ultrasonic impacts on the indenter depth penetration into material of rigid-plastic foundation.The obtained results allow us to estimate an influence of ...
M. G. Kiselev +2 more
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Calculation of Natural Frequencies of Retaining Walls Using the Transfer Matrix Method
Advances in Civil Engineering, 2019 The dynamic response magnitudes of retaining walls under seismic loadings, such as earthquakes, are influenced by their natural frequencies. Resonances can occur when the natural frequency of a wall is close to the loading frequency, which could result ...
Peng Xu, Guanlu Jiang
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Neuroprotection, EarlyView.Schematic diagram of the experimental design and key findings of traumatic brain injury (TBI) with varying severities. Mild, moderate, and severe TBI were induced in the right motor cortex of mice using the controlled cortical impact (CCI) method, with impact depths of 0.5, 1.0, and 2.0 mm, respectively. A subset of severe TBI mice received minocycline
Yan Yu +13 more
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Designed and Testing of the Positive Displacement Motor Driven Rotary Percussion Drilling Device
Shiyou jixie, 2016 The stability and service life of common rotary percussion drilling downhole tool is influenced by poor working conditions and is far from the field requirement. In view of this,a PDM driven drill string reciprocating percussion concept has been proposed,
Ma Guangjun +2 more
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