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Article
Finite-time Dynamic Surface Fault-tolerant Control for Hypersonic Vehicle with Mismatched Disturbances
This paper studies the tracking control problem of hypersonic vehicle in the process of external disturbance, parameters uncertainties and actuator faults. Firstly, a non-triangular velocity and altitude nonli...
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Article
Fe-Zn supersaturated solid solution prepared by mechanical alloying and laser sintering to accelerate degradation
The slow degration of iron limits its bone implant application. The solid solution of Zn in Fe is expected to accelerate the degradation. In this work, mechanical alloying (MA) was used to prepare Fe-Zn powder...
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Article
Green large-scale production of N/O-dual do** hard carbon derived from bagasse as high-performance anodes for sodium-ion batteries
Sodium-ion batteries are considered as a promising candidate for lithium-ion batteries due to abundant sodium resources and similar intercalation chemistry. Hard carbon derived from biomass with the virtue of ...
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Article
Settlement characteristics of bridge approach embankment based on scale model test
In order to analyze the effects of backfill materials, geometries and slab setting on the settlement of bridge approach embankment, scale model was built based on the structural characteristics of bridge appro...
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Article
Promotion of conversion activity of flue gas desulfurization gypsum into α-hemihydrate gypsum by calcination-hydration treatment
The massive accumulation of flue gas desulfurization (FGD) gypsum produced in the wet limestone-gypsum flue gas desulfurization process not only encroaches on lands but also causes serious environmental pollut...
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Article
Fast Pyrolysis of Corn Stalks at Different Growth Stages to Selectively Produce 4-Vinyl Phenol and 5-Hydroxymethyl Furfural
Fast pyrolysis of specific corn stalk (CS) materials offered a promising and convenient way to selectively produce two valuable compounds, i.e., 4-vinyl phenol (4-VP) and 5-hydroxymethyl furfural (5-HMF). In t...
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Article
Microstructure and mechanical properties of as-cast and extruded Mg-8Li-3Al-0.7Si alloy
Mg-8Li-3Al-0.7Si alloy was prepared by casting and deformed by hot extrusion in this study. And the microstructure of as-cast and extruded specimens was analyzed with OM, XRD, SEM and EDS. Results show that th...
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Article
Perturbation effect of rock rheology under uniaxial compression
Soft and medium-hard rocks are subjected to high rheology under high stress, and they are prone to a relatively large-degree of deformation when perturbed by external impacting loads. The phenomenon where rock...
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Article
A bearing fault diagnosis method based on sparse decomposition theory
The bearing fault information is often interfered or lost in the background noise after the vibration signal being transferred complicatedly, which will make it very difficult to extract fault features from th...
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Article
Re-study on localized structures based on variable separation solutions from the modified tanh-function method
We derive variable separation solutions of the ( \(1+1\) ...
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Article
Combustion Characteristics and Kinetics of Anthracite Blending with Pine Sawdust
The combustion characteristics and kinetics of anthracite, pine sawdust and their blends were investigated under combustion condition by thermogravimetric analysis, respectively. The fractions of pine sawdust ...
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Article
Improving wear resistance of magnesium by droplet spraying of Al-Si alloy
In order to improve the surface hardness and wear resistance of magnesium, Al-13%Si (mass fraction) alloy coating was deposited on pure magnesium by droplet spraying process. The microstructure was studied by ...
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Article
Lifting Force Acting on a Gate With High Head
The hydrodynamic lifting force acting on a gate with high head is one of the key factors concerning the safety and reliability of gates. The lifting force is closely related to hydrodynamic pressure, and gener...
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Article
Additive effects of N,N,N′,N′-tetraalkyl terephthalamide on crystalline morphology and mechanical properties of polypropylene
The effect of N,N,N′N′-tetraalkyl terephthalamide (TATA) on the crystallization of polypropylene (PP) was studied by means of differential scanning calorimetry, wide angle X-ray diffraction and polarized optical ...
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Article
Simultaneous determination of geniposidic acid, chlorogenic acid and geniposide in eucommia by HPLC
A high performance liquid chromatography (HPLC) method was established for simultaneous determination of geniposidic acid, chlorogenic acid and geniposide in eucommia. Detection at 240 nm with a reversed-phase...
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Article
Rock-forming mechanism of Fenghuangshan rockbody in Tongling area
Based on the detailed geological investigation and record of galleries and drill holes, a new idea has been advanced that granodiorite is earlier than quartz monzodiorite porphyry. Both of them are products of...
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Article
Approaches to location prognosis of concealed ore deposits (bodies) of productive mines
This paper demonstrates the channels and methods for location prognosis of concealed ore deposits (bodies) in the deep-seated and surrounding districts of productive mines in accordance with their special feat...