A5100691700- Concrete Properties and Behavior
- Dam Engineering and Safety
- Concrete and Cement Materials Research
- Geotechnical Engineering and Underground Structures
- Geomechanics and Mining Engineering
- Concrete Corrosion and Durability
- Geotechnical Engineering and Analysis
- Innovative concrete reinforcement materials
- Nanomaterials for catalytic reactions
- Catalysis and Hydrodesulfurization Studies
- Soil, Finite Element Methods
- Phase Change Materials Research
- Smart Materials for Construction
- Innovations in Concrete and Construction Materials
- Iterative Learning Control Systems
- Advanced Sensor and Control Systems
- Catalytic Processes in Materials Science
- Fire effects on concrete materials
- Civil and Geotechnical Engineering Research
- Rock Mechanics and Modeling
- Urban Design and Spatial Analysis
- Geotechnical Engineering and Soil Stabilization
- Heat Transfer and Optimization
- Computer Graphics and Visualization Techniques
- Fault Detection and Control Systems
Hohai University
2014-2025
State Intellectual Property Office
2025
Tianjin University of Science and Technology
2020-2024
Shaanxi University of Science and Technology
2022-2024
Huzhou University
2022-2024
Chinese Academy of Sciences
2014-2024
Technology and Engineering Center for Space Utilization
2023-2024
University of Chinese Academy of Sciences
2024
Xi'an University of Technology
2023-2024
Harbin Institute of Technology
2004-2023
In this paper, two different backstepping neural network (NN) control approaches are presented for a class of affine nonlinear systems in the strict-feedback form with unknown nonlinearities. By special design scheme, controller singularity problem is avoided perfectly both approaches. Furthermore, closed loop signals guaranteed to be semiglobally uniformly ultimately bounded and outputs system proved converge small neighborhood desired trajectory. The performances closed-loop can shaped as...
Fluid flow and heat transfer of nanofluids have gained a lot attention due to their wide application in industry. In this context, the appropriate solution such phenomena is study exciting challenging field by research community. This paper presents an extension well-known collocation method (CM) investigate accurate solutions unsteady among two parallel plates. First, mathematical model developed for discussed phenomena, then converted into non-dimensional form using viable similarity...
Abstract Temperature‐programmed reduction of transition‐metal phosphate precursors is the most commonly used method for preparation phosphides (a new class versatile metal catalysts), but processes are still not clear. Here we describe construction a temperature‐programmed reduction‐infrared spectroscopy apparatus (TPR‐IR) to analyze gas flows during nickel, molybdenum, and tungsten phosphates. PH 3 P n+ species already appeared in at low temperature (ca. 200 °C), was involved formation...
Laser engineered net shaping (LENS) is an advanced additive manufacturing technology combining rapid prototyping and synchronization technology. Its multi-powder feeder delivery system enables multi-materials building in single deposition, which appropriate for of functionally graded materials (FGMs). In this study, martensitic-stainless steel (MSS)/austenitic stainless (ASS) FGMs with composition transitioning from 100% MSS incrementally to ASS by 25% gradients are fabricated LENS. The...
Background Psychological pain is the most important factor affecting suicide rates. However, factors contributing to psychological in medical students remain poorly understood. Objective This study aimed investigate effects of a stress mindset on and mediating roles cognitive reappraisal self-identity among Chinese students. Methods Medical ( N = 2056; 1,369, 66.60% female; 683, 33.40% male) from China completed multiple measures mindset, self-identity, reappraisal, pain. Correlation...
A bulk MoP catalyst and a series of catalysts modified by cerium oxide [Ce–MoP(x), where x represents the Ce/Mo molar ratio] were prepared coprecipitation followed in situ H2 temperature-programmed reduction. The addition did not affect electronic structure but decreased particle size changed morphology coordination state particles. was an aggregate heterogeneously distributed pebble-like particles, while Ce–MoP(x) mixture rod-like only possessed small amount acid sites showed almost no...
Concrete vibration construction sustains high labor intensity, a poor working environment, difficulties in quality control, and other problems. Current research on concrete focuses monitoring quality, evaluating processes quantitatively, assessing mechanical of unreinforced mesh (plain concrete). Standardizing under reinforcing steel remains difficult. There is still lag the evaluation rework consumption human material resources. To tackle these issues, vibrating robotic arm system based...
When using the conventional finite element method, a great number of grid nodes are necessary to describe large and uneven temperature gradients in concrete around cooling pipes when calculating field mass with pipes. In this paper, gradient properties pipe were studied. A new calculation method was developed based on these an explicit iterative algorithm. With small nodes, both distribution along water can be correctly calculated method. computing models, regarded as third boundary...
Abstract Pipe cooling is an effective method of mass concrete temperature control, but its accurate and convenient numerical simulation still a cumbersome problem. An improved embedded model, considering the water variation along pipe, was proposed for simulating field early-age structures containing pipes. The model verified with engineering example. Then, p-version self-adaption algorithm deduced, initial values boundary conditions were examined. Comparison some samples shows that can...