A5066550564- Adaptive Control of Nonlinear Systems
- Advanced Control Systems Optimization
- Guidance and Control Systems
- Stability and Control of Uncertain Systems
- Fault Detection and Control Systems
- Prosthetics and Rehabilitation Robotics
- Robotic Locomotion and Control
- Viral Infections and Immunology Research
- Reproductive System and Pregnancy
- Plasma and Flow Control in Aerodynamics
- Animal Disease Management and Epidemiology
- Aerospace and Aviation Technology
- Reproductive Physiology in Livestock
- N-Heterocyclic Carbenes in Organic and Inorganic Chemistry
- Aerospace Engineering and Control Systems
- Catalytic C–H Functionalization Methods
- Robotic Path Planning Algorithms
- Neurogenetic and Muscular Disorders Research
- Bacterial Genetics and Biotechnology
- Topic Modeling
- Catalytic Cross-Coupling Reactions
- Fractal and DNA sequence analysis
- Natural Language Processing Techniques
- Control and Dynamics of Mobile Robots
- Spacecraft Dynamics and Control
Harbin Institute of Technology
2015-2025
Northwestern Polytechnical University
2024-2025
Lanzhou University
2022-2025
Jinan University
2024
Zhejiang Gongshang University
2024
Weifang Medical University
2023-2024
Shandong University of Science and Technology
2024
Jiangsu University
2024
Nanjing Agricultural University
2020-2024
Jiangsu Academy of Agricultural Sciences
2024
This paper designs a high-performance adaptive controller for the uncertain model of hypersonic flight vehicles (HFVs) proceed by faulty and hysteretic actuators. A parameterized HFV is derived, based on which tracking controllers velocity altitude are designed, sequentially. Compared with other strategies that mainly focus parametric uncertainty asymptotic tracking, utilization prescribed performance control technique can largely improve transient characteristics HFVs. novel handling...
In this paper, a combination of feedback linearization and disturbance observer-based control (DOBC) is adopted for the design state-feedback controller that regulates velocity altitude air-breathing hypersonic vehicles (AHVs) subject to constrained inputs. First, observer established estimate overall effect possible uncertainties disturbances on nominal vehicle model which called lumped disturbance. Then, compensation method proposed based counteract mismatched Furthermore, novel antiwindup...
This paper deals with fault-tolerant output tracking control for the flexible air-breathing hypersonic vehicle (AHV) subject to parametric uncertainties, external disturbances, and actuator constraints. By regarding dynamics as equivalent model can be split into three functional subsystems, namely, horizontal translation subsystem, vertical rotation subsystem. Then, each a disturbance observer is utilized estimate lumped effect of faults, while novel auxiliary system combined command...
Comprehensive Summary We report herein an unprecedented N ‐heterocyclic carbene‐catalyzed formal [3 + 3] annulation of ynals with ‐Ts indolin‐3‐ones under the oxidation condition affording functionalized pyrano[3,2‐ b ]indol‐2‐ones. The alkynyl acylazoliums via combination a carbene in presence oxidate proved to be important intermediates for success this transformation. This method features broad substrate scope and mild conditions, including axially chiral skeletons suitable substitutions.
We describe a new format for the recently introduced bio bar code technology, which improves dose response over 10 000-fold and thereby makes this technique analytically useful. Unlike other ultrasensitive protein detection methods, such as immuno-PCR or immuno-RCA, does not employ any enzymes to achieve limits in attomolar range. By sandwiching target between magnetic bead an amplifier nanoparticle, multiplicity of oligonucleotides are released each captured analyte. These surrogate targets...
This article deals with the problem of mobile robot path planning in an unknown environment that contains both static and dynamic obstacles, utilizing a reinforcement learning approach. We propose improved Dyna- <inline-formula xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink"> <tex-math notation="LaTeX">${Q}$ </tex-math></inline-formula> algorithm, which incorporates heuristic search strategies, simulated annealing mechanism, reactive navigation...
When working at extremely high altitude, aerodynamic surfaces of air-breathing hypersonic vehicles (AHVs) may not provide sufficient control authority. To remedy this shortage, we consider AHVs equipped with the auxiliary reaction system (RCS), which utilize a set jets to compensate for ineffective surfaces. A novel longitudinal compound is proposed generate commands and RCS, adaptively. Constrained angle-of-attack, uncertain parameters, flexible dynamics are also considered.
The enantioselective and diastereoselective synthesis of atropisomeric hydrazides with defined vicinal central axial chirality via ternary catalysis in a one-pot process is reported.
The in situ-generated pyrrolin-3-ones serve as novel and versatile synthons, being employed intermediates for the efficient production of pyrrole-fused lactones with high yield excellent enantioselectivity. Herein, we introduce emerging rhodium oxidative N-heterocyclic carbene relay catalysis that enables a highly enantioselective cascade annulation between easily available 1,2,3-triazoles enals. In this proof-of-concept study, engage α,β-unsaturated acylazolium generated from enals via catalysis.
Mutations in the ARMC5 gene are generally associated with bilateral macronodular adrenal hyperplasia (BMAH), whereas primary aldosteronism (PA) is most commonly linked to cortical adenomas (ACA). Recent studies have identified mutations certain PA cases; however, it remains unclear whether BMAH can directly contribute PA. A patient undergoing evaluation for secondary hypertension was diagnosed BMAH, an elevated aldosterone/renin ratio (ARR) suggestive of PA, and subclinical Cushing's...
This paper designs a fault-tolerant adaptive controller for air-breathing hypersonic vehicles (AHVs) subject to modelling parameter uncertainties, external disturbances, and actuator nonlinearities of saturation backlash. The proposed control scheme is able compensate the effects by utilising states five auxiliary dynamic systems, which are driven differences between nominal saturated input signals. Additionally, surfaces on aerodynamic force moment, commonly neglected existing designs, can...
We report herein an efficient NHC-catalyzed kinetic resolution of acyclic tertiary propargylic alcohols that provides them in high to excellent enantioselectivity. This is the first example realized by enantioselective acylation. The recovered enantioenriched can be facilely converted into other valuable compounds such as densely functionalized and carbmates yields stereopurity. Density functional theory calculations were performed determine reaction mechanism understand origin enantiodiscrimination.
This paper designs a finite-time output tracking controller for air-breathing hypersonic vehicles (AHVs) subjected to disturbances and actuator constraints. After proper derivations, the original model is divided into two independent subsystems undergoing mismatched lumped disturbance. A disturbance observer (FTDO) employed estimate disturbance, while an auxiliary system combined with command pre-filter designed analyze effect of input saturation caused by restrained actuators. Based on FTDO...
Cable-driven parallel robots (CDPRs) have the characteristics of large workspace and fast response speed, which attracted lots interests in past decade. Most CDPRs use flexible cables to manipulate moving platform while length is changed by winches fixed on base. Consequently, interferences among driving cables, platform, environment become inevitable problems, significantly limit effective its performance complex multiobstacle environment. This article proposes a novel CDPR with movable...
Due to the unique airframe/scramjet integration of air-breathing hypersonic vehicles (AHVs), flight status has complex influences on scramjet efficiency. This article studies longitudinal control problem AHVs configured with variable geometry inlet, in parallel full considerations operation. In velocity loop, an adaptive reference generator is constructed accommodate state-dependent constraint fuel-to-air equivalency ratio that required by avoidance thermal choking. Meanwhile altitude...
Abstract Osteoporosis (OP) has severely affected human health, which is characterized by abnormal differentiation of osteoclasts. Urolithin B (UB), as a potential natural drug, been reported to exhibit numerous biological activities including antioxidant and anti‐inflammatory but its effects on OP, especially RANKL‐stimulated osteoclast formation activation, are still understood. In our study, we have demonstrated for the first time that UB inhibits RANKL‐induced explored mechanisms action....