Ying Yang
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Cervical pregnancy treated with methotrexate combined with traditional Chinese medicine: a case report and literature review Open
Background Cervical pregnancy is a rare form of ectopic pregnancy in which the embryo implants within the cervical canal. With the growing use of assisted reproductive technologies (ARTs), its incidence has gradually increased. Traditional…
View article: Guideline Concordance of Chronic Kidney Disease Testing Remains Low in Patients with Diabetes and Hypertension: Real-World Evidence from a City in Northwest China
Guideline Concordance of Chronic Kidney Disease Testing Remains Low in Patients with Diabetes and Hypertension: Real-World Evidence from a City in Northwest China Open
Introduction: This study aimed to evaluate the guideline concordance of chronic kidney disease (CKD) testing among high-risk patients in a city in Northwest China and identify key factors influencing testing practices. Methods: A retrospec…
Investigation of the Microhardness, Morphology, and Wear Resistance of A7075 Subjected to Machine Hammer Peening Open
In industrial production, 7075 aluminum alloy (A7075) is prized for its strength and light weight. However, heat treatment can reduce its hardness and wear resistance. Therefore, proper surface treatments are often necessary to optimize it…
Further results on fixed‐time stability of time‐varying hybrid systems Open
The introduction of time‐varying factors makes it difficult and complex to study the stability of hybrid systems. How to improve the traditional stability analysis method to study the stability of time‐varying hybrid systems is a great cha…
Evaluation of genotype characteristics and drug resistance mutations in patients with chronic hepatitis B Open
Background: Hepatitis B is one of the public health priorities worldwide, especially in the Southwest China. Our study aimed to investigate the relationship between genotypes and drug resistance mutations among HBV patients in Southwest Ch…
Effect of speed sintering and aging on the translucency of high-translucent zirconia. Open
Speed sintering may decrease the translucency of high-strength zirconia and increase the translucency of high-translucent zirconia. Low-temperature degradation had no effect on the translucency of high-translucent zirconia. Speed sintering…
Global stability of a diffusive Leishmaniasis model with direct and indirect infection rate Open
Visceral leishmaniasis (VL), or black fever (kala-azar), is a fatal parasitic disease that infects a hosts internal organs.According to the World Health Organization (WHO), leishmaniasis is a major public health problem that has been negle…
The Effects of Shot Distance and Impact Sequence on the Residual Stress Field in Shot Peening Finite Element Model Open
In order to investigate the effect of shot distance and impact sequence on the residual stress distribution of 42CrMo steel in shot peening (SP) finite element (FE) simulation, 3D dynamic models with order dimple pattern and stochastic dim…
Fracture mechanism of a cylindrical shell cut by circumferential detonation collision Open
The failure mechanism of a cylindrical shell cut into fragments by circumferential detonation collision was experimentally and numerically investigated. A self-designed detonation wave regulator was used to control the detonation and cut t…
Fractional-Order Finite-Time, Fault-Tolerant Control of Nonlinear Hydraulic-Turbine-Governing Systems with an Actuator Fault Open
Hydropower units undertake tasks such as peak shaving, frequency modulation, and providing accident reserves in the power system. With the increasing capacity and structural complexity of power systems, hydropower units have become more im…
Stability Analysis of Discrete-Time Switched Linear Time-Varying Systems Based on Function-Dependent LMIs Open
This paper considers the problem of uniformly asymptotic stability (UAS) for discrete-time switched linear time-varying (DSLTV) systems. Starting with discrete-time linear time-varying (DLTV) systems, some stability conditions are given by…
Design of a Nonlinear Predictive Controller for a Fractional-Order Hydraulic Turbine Governing System with Mechanical Time Delay Open
A nonlinear predictive control method for a fractional-order hydraulic turbine governing system (HTGS) with a time delay is studied in this paper. First, a fractional-order model of a time-delay hydraulic turbine governing system is presen…
Cross-flow and torsion coupled dynamic response of submerged floating tunnel under the action of ocean current Open
Submerged floating tunnel (SFT) is a kind of long distance flexible sea structure. The dynamic behavior of SFT is bound to be affected by the action of ocean current. According to the typical cross-section of the structure, the two-dimensi…
Finite-Time Stability of a Time-Delay Fractional-Order Hydraulic Turbine Regulating System Open
Finite-time terminal sliding mode control of a time-delay fractional-order hydraulic turbine regulating system (HTRS) is studied. First, an improved Adams-Bashforth-Moulton algorithm is introduced to solve the fractional-order nonlinear sy…
Coupled Vibration Analysis of Submerged Floating Tunnel System in Wave and Current Open
Submerged floating tunnel (SFT) is an innovative underwater structure for crossing long straits, which withstands the effects of water wave and current throughout its lifecycle. This paper proposes a theoretical approach to investigate the…
Fracture mechanics analysis of cracked structures using weight function and neural network method Open
Stress intensity factors(SIFs) due to thermal-mechanical load has been established by using weight function method. Two reference stress states sere used to determine the coefficients in the weight function. Results were evaluated by using…
Identification of modified Swift constitutive model and its application in predicting FLDs of AA5083 at elevated temperatures Open
Aluminum alloy has been widely used in automobile industry, aerospace and other fields due to its characteristics of high specific strength, high specific stiffness, etc. The considerable potential for broad application of the alloy requir…
Stability analysis and <i>H<sub>∞</sub> </i> control of discrete T–S fuzzy hyperbolic systems Open
This paper focuses on the problem of constraint control for a class of discrete-time nonlinear systems. Firstly, a new discrete T–S fuzzy hyperbolic model is proposed to represent a class of discrete-time nonlinear systems. By means of the…
Challenge in Design and Construction of Submerged Floating Tunnel and State-of-art Open
Submerged Floating Tunnel (SFT) is a new type of transport structure. It is different from the general bridges and tunnels engineering, it has a significant advantage over conventional structures in crossing long, large and deep water area…
Coupled Vibration Analysis of CFRP Cable-tube System under Parametric Excitation in Submerged Floating Tunnel Open
Carbon fiber reinforced polymer (CFRP) has advantages of light weight, great strength, considerable flexibility and resistance to corrosion and fatigue. In this paper, the submerged floating tunnel (SFT) with CFRP cable is proposed. The co…