A5063236050- Methane Hydrates and Related Phenomena
- Underwater Vehicles and Communication Systems
- Offshore Engineering and Technologies
- 2D Materials and Applications
- Spacecraft and Cryogenic Technologies
- Hydraulic and Pneumatic Systems
- Underwater Acoustics Research
- Arctic and Antarctic ice dynamics
- Adaptive Control of Nonlinear Systems
- Hydrocarbon exploration and reservoir analysis
- Marine Biology and Ecology Research
- Water Quality Monitoring Technologies
- Microbial Community Ecology and Physiology
- Oil and Gas Production Techniques
- Drilling and Well Engineering
- Silicon and Solar Cell Technologies
- MXene and MAX Phase Materials
- Structural Integrity and Reliability Analysis
- Perovskite Materials and Applications
- Wireless Body Area Networks
- Geotechnical Engineering and Underground Structures
- Fluid Dynamics Simulations and Interactions
- Coastal and Marine Dynamics
- Microplastics and Plastic Pollution
- Optical measurement and interference techniques
Zhejiang University
2016-2025
Zhejiang Ocean University
2016-2025
Hefei Institutes of Physical Science
2021-2025
Institute of Solid State Physics
2021-2025
Chinese Academy of Sciences
2021-2025
University of Science and Technology of China
2021-2025
Sanya University
2021-2024
Zhejiang Lab
2024
Lanzhou University
2024
Institute of Microelectronics
2022-2024
This paper proposes a new adaptive time-delay control (ATDC) scheme for cable-driven manipulators. The proposed ATDC contains three elements, i.e., estimation (TDE), injected dynamics, and laws. TDE utilizes intentionally time-delayed signals to estimate the unknown system dynamics brings fascinating model-free nature. employ fractional-order nonsingular terminal sliding mode (FONTSM) manifold fast-TSM-type reaching law, thus it can ensure fast dynamical response high tracking accuracy in...
Broken-gap van der Waals (vdW) heterojunctions based on 2D materials are promising structures to fabricate high-speed switching and low-power multifunctional devices thanks its charge transport versus quantum tunneling mechanism. However, the current is usually generated under both positive negative bias voltage, resulting in small rectification photocurrent on/off ratio. In this paper, we report a broken-gap vdW heterojunction PtS2/WSe2 with bilateral accumulation region design big band...
Abstract Male infertility is a physiological phenomenon in which man unable to impregnate fertile woman during 12-month period of continuous, unprotected sexual intercourse. A growing body clinical and epidemiological evidence indicates that the increasing incidence male reproductive problems, especially infertility, shows very similar trend diabetes within same age range. In addition, large number previous vivo vitro experiments have also suggested complex pathophysiological changes caused...
Multilateral telerobotic system has potential applications in the industry environments with advantages of cooperative manipulation for remote and hazardous tasks, its control design is quite challenging due to several coupling issues such as stability, position tracking, force feedback, under time delays, various uncertainties, external disturbance. In this paper, a novel radial basis function neural network (RBFNN) based adaptive sliding mode proposed nonlinear multilateral...
Lateral homojunctions made of two-dimensional (2D) layered materials are promising for optoelectronic and electronic applications. Here, we report the lateral WSe2-WSe2 homojunction photodiodes formed spontaneously by thickness modulation in which there unique band structures a unilateral depletion region. The electrically tunable junctions can be switched from n-n to p-p diodes, corresponding rectification ratio increases about 1 1.2 × 104. In addition, an obvious photovoltaic behavior is...
2D material (2DM) based photodetectors with broadband photoresponse are of great value for a vast number applications such as multiwavelength photodetection, imaging, and night vision. However, compared traditional on bulk material, the relatively slow speed performance 2DM hinders their practical applications. Herein, submicrosecond-response photodetector ternary telluride InSiTe3 trigonal symmetry layered structure was demonstrated in this study. The exhibit an ultrafast (545-576 ns)...
van der Waals (vdW) heterodiodes composed of two-dimensional (2D) layered materials led to a new prospect in photoelectron diodes and photovoltaic devices. Existing studies have shown that Type-I heterostructures great potential be used as photodetectors; however, the tunneling phenomena not been fully revealed. Herein, highly efficient nn+ WS2/PtS2 vdW heterostructure photodiode is constructed. The device shows an ultrahigh reverse rectification ratio 105 owing transmission barrier-induced...
A Nb 2 Pd 3 Se 8 photodetector based on the photothermoelectric effect exhibits a broadband detection capability (365 nm–10.6 μm) without external bias and polarization-sensitive with an anisotropic ratio of 1.42.
Abstract GaN's outstanding physical characteristics allow for a wide range of applications in numerous industries. Although individual GaN‐based ultraviolet (UV) photodetectors are the subject in‐depth research recent decades, demand array is rising as result advances optoelectronic integration technology. However, prerequisite constructing array, large‐area, patterned synthesis GaN thin films remains certain challenge. This work presents facile technique pattern growing high‐quality...
Offshore oil and gas resources play a crucial role in supplementing the energy needs of human society. The crisscrossing subsea pipeline network, which serves as vital infrastructure for storage transportation offshore gas, requires regular inspection maintenance to ensure safe operation prevent ecological pollution. In-line (ILI) techniques have been widely used detection potential hazards within network. This paper offers an overview ILI pipelines, examining their advantages, limitations,...
The artificially submerged cavitation water jet is effectively utilized by ejecting a high-pressure stream into low-pressure through concentric nozzles and utilizing the phenomenon generated shear layer formed between two streams. In this study, we investigated characteristics of jets combining numerical simulations erosion experiments. results indicate that an appropriate standoff distance can generate more clouds on workpiece surface, are most pronounced at dimensionless SD = 30. effect...
The viscosity of the working fluid is an important parameter for design and analysis underwater hydraulic systems, especially deep-sea systems. It requires precise values to ensure system efficiency energy saving. fluids systems mainly include mineral oil water-based liquids. Currently, there lacks accurate model describe variation pattern within full-ocean-depth pressure range across a broad temperature interval. In this study, Aviation Hydraulic Oil No. 10 deionized water were sampled...
It is crucial to accurately characterize the static and dynamic properties of seals for design deep-sea equipment. This study investigated movement resistance O-rings under high pressure (up 30 MPa) low temperature (2 °C). Numerical simulation models were set up investigate effects material seal structure dimensions on reciprocating friction installation force O-rings. Furthermore, a novel testing rig was developed facilitate measurement temperature. The results this indicate that nitrile...
Gassy soil is prevalent in coastal regions, and the presence of gas bubbles can significantly alter mechanical properties soil, potentially leading to various marine engineering geological hazards. In this study, a series triaxial tests were conducted on fine-grained gassy soils under different consolidation pressures (pc’), stress paths, initial pore water (uw0). These also used verify applicability newly proposed constitutive model. According test results, response excess pressure...
On-chip polarized photodetectors play a crucial role in advancing ultra-compact optoelectronic devices for next-generation technologies. However, simultaneously detecting the angle of linear polarization (AoLP) and degree (DoLP) within single device remains challenging task, particularly due to inherently weak states found naturally anisotropic materials. In this paper, it is reported on development twisted monopole barrier photodetector based PdSe2/MoS2/PdSe2 configuration. This features...
The thermophysical properties of working fluids serve as a fundamental basis for the design and analysis subsea hydraulic systems. Precise characterization oil properties—including bulk modulus, thermal conductivity, viscosity—is critical optimizing system efficiency energy conservation in deep-sea applications. However, no existing model accurately describes variation patterns these parameters across full-ocean-depth pressure ranges (0.1–110 MPa) wide temperature intervals (2–70 °C). In...
Two-dimensional (2D) noble transition-metal dichalcogenides (NTMDs) have drawn widespread attention due to the promising applications in electronics and optoelectronics. Here, we studied measured thermal transport properties of few-layer PtSe2 PtS2 using an optothermal Raman technique. First, obtained temperature- laser-correlative spectra with disparate thicknesses. It is found that temperature laser power increase, A1g Eg modes all specimens show red shifts. The conductivity values can be...