Yiheng Wei
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View article: Bioinspired TriPhase Interfacial Design Promotes Mass Transfer for Enhanced Photocatalytic Nitrogen Fixation
Bioinspired TriPhase Interfacial Design Promotes Mass Transfer for Enhanced Photocatalytic Nitrogen Fixation Open
View article: Super-Resolution Reconstruction of Sonograms Using Residual Dense Conditional Generative Adversarial Network
Super-Resolution Reconstruction of Sonograms Using Residual Dense Conditional Generative Adversarial Network Open
A method for super-resolution reconstruction of sonograms based on Residual Dense Conditional Generative Adversarial Network (RDC-GAN) is proposed in this paper. It is well known that the resolution of medical ultrasound images is limited,…
View article: Adaptive fractional distributed optimization algorithm with directed spanning trees
Adaptive fractional distributed optimization algorithm with directed spanning trees Open
View article: Carbon Hollow Fiber Penetration Electrode with Unsaturated Ni‐N <sub>2</sub> Coordination for Enhanced CO <sub>2</sub> Electroreduction
Carbon Hollow Fiber Penetration Electrode with Unsaturated Ni‐N <sub>2</sub> Coordination for Enhanced CO <sub>2</sub> Electroreduction Open
Hollow fiber gas penetration electrodes with a compact hierarchical pore structure have emerged as promising platforms for CO 2 electroreduction. However, developing carbon hollow fiber electrodes with efficient CO 2 electrocatalytic perfo…
View article: Singularity-Free Prescribed-Time Distributed Resource Allocation Based on Time Space Deformation
Singularity-Free Prescribed-Time Distributed Resource Allocation Based on Time Space Deformation Open
Article Singularity-Free Prescribed-Time Distributed Resource Allocation Based on Time Space Deformation Shuaiyu Zhou 1 , Peng Yi 2 , Shaofu Yang 3 and Yiheng Wei 1,* 1 The School of Mathematics, Southeast University, Nanjing 211189, China…
View article: Facet-oriented SnO2@Ni hollow fiber enables ampere-level CO2 electroreduction to formate with 85% single-pass conversion
Facet-oriented SnO2@Ni hollow fiber enables ampere-level CO2 electroreduction to formate with 85% single-pass conversion Open
The electrochemical conversion of CO2 into liquid fuels is a promising strategy for achieving carbon neutrality. Tin dioxide (SnO2) shows a notable ability to electrocatalytically convert CO2 into formate, …
View article: Fault Analysis of Transformer High-Voltage Outlet Device Considering Fiber Particle Aggregation
Fault Analysis of Transformer High-Voltage Outlet Device Considering Fiber Particle Aggregation Open
The main insulation for high-voltage outlet devices in transformers consists of a complex arrangement of alternating multilayer oil channels and insulating pressboard, with the insulation margin approaching the design limit. As transformer…
View article: Ampere-level CO2 electroreduction with single-pass conversion exceeding 85% in acid over silver penetration electrodes
Ampere-level CO2 electroreduction with single-pass conversion exceeding 85% in acid over silver penetration electrodes Open
View article: Fatigue Life Data Fusion Method of Different Stress Ratios Based on Strain Energy Density
Fatigue Life Data Fusion Method of Different Stress Ratios Based on Strain Energy Density Open
To accurately evaluate the probabilistic characteristics of the fatigue properties of materials with small sample data under different stress ratios, a data fusion method for torsional fatigue life under different stress ratios is proposed…
View article: Distributed optimization via active disturbance rejection control: A nabla fractional design
Distributed optimization via active disturbance rejection control: A nabla fractional design Open
This paper studies distributed optimization problems of a class of agents with fractional order dynamics and unknown external disturbances.Motivated by the celebrated active disturbance rejection control (ADRC) method, a fractional order e…
View article: Electronic Regulation on Ni‐based Catalysts for Efficient CO<sub>2</sub> Electroreduction
Electronic Regulation on Ni‐based Catalysts for Efficient CO<sub>2</sub> Electroreduction Open
Green power‐driven CO 2 electroreduction using earth‐abundant Ni‐based catalysts is a highly promising approach to fulfill renewable energy storage and a negative carbon cycle. However, metallic Ni nanoparticles and clusters always show se…
View article: Correction to “Nabla Fractional Distributed Optimization Algorithm Over Unbalanced Graphs”
Correction to “Nabla Fractional Distributed Optimization Algorithm Over Unbalanced Graphs” Open
View article: Multi-Objective Network Resource Allocation Method Based on Fractional Pid Control
Multi-Objective Network Resource Allocation Method Based on Fractional Pid Control Open
View article: Electrochemical Epoxidation of Propylene to Propylene Oxide via Halogen-Mediated Systems
Electrochemical Epoxidation of Propylene to Propylene Oxide via Halogen-Mediated Systems Open
As one of the most important derivatives of propylene, the production of propylene oxide (PO) is severely restricted. The traditional chlorohydrin process is being eliminated due to environmental concerns, while processes such as Halcon an…
View article: A Bayesian two-step multiple imputation approach based on mixed models for the missing in EMA data
A Bayesian two-step multiple imputation approach based on mixed models for the missing in EMA data Open
Ecological Momentary Assessments (EMA) capture real-time thoughts and behaviors in natural settings, producing rich longitudinal data for statistical and physiological analyses. However, the robustness of these analyses can be compromised …
View article: Multi/Single-stage structured zero-gradient-sum approach for prescribed-time optimization
Multi/Single-stage structured zero-gradient-sum approach for prescribed-time optimization Open
Prescribed-time convergence mechanism has become a prominent research focus in the current field of optimization and control due to its ability to precisely control the target completion time. The recently arisen prescribed-time algorithms…
View article: Enhancing the Mathematical Theory of Nabla Tempered Fractional Calculus: Several Useful Equations
Enhancing the Mathematical Theory of Nabla Tempered Fractional Calculus: Several Useful Equations Open
Although many applications of fractional calculus have been reported in literature, modeling the physical world using this technique is still a challenge. One of the main difficulties in solving this problem is that the long memory propert…
View article: On some analytic properties of nabla tempered fractional calculus
On some analytic properties of nabla tempered fractional calculus Open
Despite many applications regarding fractional calculus have been reported in literature, it is still unknown how to model some practical process. One major challenge in solving such a problem is that, the nonlocal property is needed while…
View article: Some useful inequalities for nabla tempered fractional calculus
Some useful inequalities for nabla tempered fractional calculus Open
This paper gives particular emphasis to the nabla tempered fractional calculus, which involves the multiplication of the rising function kernel with tempered functions, and provides a more flexible alternative with considerable promise for…
View article: How to empower Grünwald–Letnikov fractional difference equations with available initial condition?
How to empower Grünwald–Letnikov fractional difference equations with available initial condition? Open
In this paper, the initial condition independence property of Grünwald–Letnikov fractional difference is revealed for the first time. For example, the solution x(k) of equation aG∇kαx(k) = f(x(k)), k > a + 1, cannot be calculated with init…
View article: Finite-time and Fixed-time Convergence in Continuous-time Optimization
Finite-time and Fixed-time Convergence in Continuous-time Optimization Open
It is known that the gradient method can be viewed as a dynamic system where various iterative schemes can be designed as a part of the closed loop system with desirable properties. In this paper, the finite-time and fixed-time convergence…
View article: Consistent approximation of fractional order operators
Consistent approximation of fractional order operators Open
Fractional order controllers become increasingly popular due to their versatility and superiority in various performance. However, the bottleneck in deploying these tools in practice is related to their analog or numerical implementation. …
View article: Analytical and numerical representations for discrete Grünwald–Letnikov fractional calculus
Analytical and numerical representations for discrete Grünwald–Letnikov fractional calculus Open
This paper focuses on the new representation of Grunwald-Letnikov discrete fractional calculus. By resorting the classical nabla Taylor series, the series representation of Grunwald-Letnikov difference/sum is established. Changing the expa…
View article: Analytical calculation of the inverse nabla Laplace transform
Analytical calculation of the inverse nabla Laplace transform Open
The inversion of nabla Laplace transform, corresponding to a causal sequence, is considered. Two classical methods, i.e., residual calculation method and partial fraction method are developed to perform the inverse nabla Laplace transform.…
View article: Generalization of the gradient method with fractional order gradient direction
Generalization of the gradient method with fractional order gradient direction Open
View article: Discussion on the Leibniz rule and Laplace transform of fractional derivatives using series representation
Discussion on the Leibniz rule and Laplace transform of fractional derivatives using series representation Open
Taylor series is a useful mathematical tool when describing and constructing\na function. With the series representation, some properties of fractional\ncalculus can be revealed clearly. This paper investigates two typical\napplications: L…
View article: Convolutional neural networks with fractional order gradient method
Convolutional neural networks with fractional order gradient method Open
View article: Modelling and simulation of nabla fractional dynamic systems with nonzero initial conditions
Modelling and simulation of nabla fractional dynamic systems with nonzero initial conditions Open
The paper focuses on the numerical approximation of discrete fractional order systems with the conditions of nonzero initial instant and nonzero initial state. First, the inverse nabla Laplace transform is developed and the equivalent infi…
View article: A novel perspective to gradient method: the fractional order approach
A novel perspective to gradient method: the fractional order approach Open
In this paper, we give some new thoughts about the classical gradient method (GM) and recall the proposed fractional order gradient method (FOGM). It is proven that the proposed FOGM holds a super convergence capacity and a faster converge…
View article: Sufficient and necessary conditions for stabilizing singular fractional order systems with partially measurable state
Sufficient and necessary conditions for stabilizing singular fractional order systems with partially measurable state Open