26 Result(s)
within
**ng-Jiang Long
Engineering
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Article
Effects of Acid Pretreatment on Purity of Copper Foil Recovered by Electrolytic Refining from Waste Printed Circuit Board
In order to extend the duration of the electrolyte solution in which copper granules recovered from waste printed circuit board are refined through electrolysis to obtain copper foil with high purity and which...
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Article
Debris falling forecast method for spacecraft disintegrating separation
Large spacecraft fall out of orbit and re-enter the atmosphere at the end of their lifetime, and they can break up into small debris upon re-entry. The spacecraft debris generated by the disintegration may lea...
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Article
Nonsingular Fast Terminal Sliding Mode Control for Uncertain Nonlinear Systems Based on Adaptive Super-twisting Sliding Mode Disturbance Observer
This paper presents a new nonsingular fast terminal sliding mode back-step** control (BSC) for uncertain nonlinear systems subjected to unknown mismatched disturbance based on an adaptive super-twisting slid...
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Article
Experimental study on triaxial creep characteristics of the anthracite coal under low confining pressure
The creep characteristics of coal pillars left over from old mining directly affect the long-term stability of underground engineering. To study the creep characteristics and long-term stability of the No. 3 a...
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Article
Thermodynamics of (Ca(OH)2-)NaOH-Na2WO4-H2O and (Ca(OH)2-)NaOH-Na3PO4-H2O systems and their application
The caustic soda autoclaving process for digesting scheelite (CaWO4) is a unique and widely used tungsten (W) metallurgy technology in China. However, some experimental phenomena still need a proper theoretical e...
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Chapter and Conference Paper
Wellbore Stability Analysis Model Considering Hydration Damage
During offshore drilling operation, mudstone formation is vulnerable to drilling fluid immersion, which would cause hydration swelling and imbibition diffusion, rock strength reduction, and wellbore instabilit...
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Chapter and Conference Paper
Research and Test of Intelligent Separate Production and Measurement Technology in Horizontal Wells
Horizontal well development is an important means to improve oil well production, but the water cut of horizontal well rises rapidly after water breakthrough, which is more difficult to control than that of ve...
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Chapter and Conference Paper
Research and Application of Drilling Engineering Monitoring and Remote Support Technology for CNPC Key Wells
The global oil and gas industry is in a critical period of digital transformation. Digital technologies such as the Internet of Things (IoT), cloud computing, big data, artificial intelligence (AI), and blockc...
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Article
Bifunctional polymer electrolyte with higher lithium-ion transference number for lithium-sulfur batteries
Lithium-sulfur (Li-S) batteries have attracted enormous interest due to their super-high theoretical energy density (2600 W · h/kg) in recent years. However, issues such as lithium dendrites and the shuttle ef...
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Article
Low-cycle fatigue behavior of K416B Ni-based superalloy at 650 °C
A study on the low-cycle fatigue (LCF) behavior of K416B alloy was conducted at 650 °C. According to the results, the LCF behavior of K416B alloy at 650 °C is mainly manifested as elastic deformation and the f...
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Article
A Novel Gait Pattern Recognition Method Based on LSTM-CNN for Lower Limb Exoskeleton
This paper describes a novel gait pattern recognition method based on Long Short-Term Memory (LSTM) and Convolutional Neural Network (CNN) for lower limb exoskeleton. The Inertial Measurement Unit (IMU) instal...
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Article
Room temperature tensile deformation behavior of a Ni-based superalloy with high W content
K416B Ni-based superalloy with high W content has good high temperature properties and low cost, which has a great development potential. To investigate the room temperature tensile property and the deformatio...
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Article
Displacement behavior and mechanism of long-term water flooding in sandstone oil reservoirs
Sandstone oil reservoirs with huge bottom water and high permeability are generally developed with high flow rate. After long-term water flooding (LTWF), the water flooding characteristics are quite different ...
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Article
Cooling control for castings by adopting skeletal sand mold design
The cooling control of the melt during the casting process is of great significance. A comprehensive closed-loop cooling control of castings by adopting a skeletal sand mold design was proposed. The skeletal s...
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Article
Factors affecting thin coal seam shearer drum coal-loading performance by a model test method
To solve the problem of a low coal-loading rate being exhibited by the drum shearer on Chinese thin coal seams, systematic tests and research were performed to study the pivotal factors’ influences on drum coa...
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Article
Stability Analysis for Time-delay Systems with Nonlinear Disturbances via New Generalized Integral Inequalities
This paper represents a novel less conservative stability criterion for time-delay systems with nonlinear disturbances. The main purpose is to obtain larger upper bound of the time-varying delay. A suitable Ly...
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Article
Microwave digestion and alkali fusion assisted hydrothermal synthesis of zeolite from coal fly ash for enhanced adsorption of Cd(II) in aqueous solution
A novel microwave digestion and alkali fusion assisted hydrothermal method was proposed to synthesize zeolite from coal fly ash and the zeolite product was studied for removal of Cd(II) from aqueous solution t...
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Article
GPU based numerical simulation of core shooting process
Core shooting process is the most widely used technique to make sand cores and it plays an important role in the quality of sand cores. Although numerical simulation can hopefully optimize the core shooting pr...
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Article
Adsorption of residual amine collector HAY from aqueous solution by refined carbon from coal fly ash and activated carbon
Refined carbon (RC) derived from coal fly ash (CFA) as well as powdered activated carbon (PAC) was investigated as adsorbent to remove residual amine collector HAY from aqueous solution. The RC and PAC were ch...
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Article
Electrochemical behavior of Mg-Al-Pb alloy in 3.5% NaCl solution
An investigation on electrochemical behavior of Mg-5%Pb alloy, Mg-6%Al alloy and Mg-6%Al-5%Pb alloy (mass fraction) in 3.5% NaCl (mass fraction) solution was conducted using electrochemical measurements and co...
