A5101555503- Fatigue and fracture mechanics
- Urban Stormwater Management Solutions
- High Temperature Alloys and Creep
- Metallurgy and Material Forming
- Hydrology and Watershed Management Studies
- Flood Risk Assessment and Management
- Titanium Alloys Microstructure and Properties
- Electrochemical sensors and biosensors
- Analytical Chemistry and Sensors
- Wildlife-Road Interactions and Conservation
- Probabilistic and Robust Engineering Design
- Smart Materials for Construction
- High-Velocity Impact and Material Behavior
- Mesoporous Materials and Catalysis
- Urban Heat Island Mitigation
- Catalysis for Biomass Conversion
- Soil and Unsaturated Flow
- Conducting polymers and applications
- Polymer crystallization and properties
- Electrochemical Analysis and Applications
- Drilling and Well Engineering
- Mechanical Failure Analysis and Simulation
- Hydraulic Fracturing and Reservoir Analysis
- Catalysis and Hydrodesulfurization Studies
- Chemistry and Chemical Engineering
University of Maryland, College Park
2023-2024
Earth System Science Interdisciplinary Center
2023-2024
State Key Laboratory of Pollution Control and Resource Reuse
2021-2023
Fudan University
2021-2023
Shanghai Institute of Pollution Control and Ecological Security
2021-2023
Novartis (China)
2020
Research Center for Eco-Environmental Sciences
2017-2019
Chinese Academy of Sciences
2017-2019
University of Chinese Academy of Sciences
2018-2019
Chongqing University
2010-2016
The catalytic activity was enhanced by the introduction of C18PA on support Ru/Nb 2 O 5 catalyst. addition more Lewis acid sites activated aromatic ring in phenol and promoted formation cyclohexanol.
The method of oxidative upgrade by nitric acid is used to convert polystyrene plastic into a high-value chemical raw material, benzoic acid. yield can reach nearly 90% at 180 °C within 3 h, while the purity product more than 95%.
LCZ696 is a novel treatment for patients suffering from heart failure that combines the two active pharmaceutical ingredients sacubitril and valsartan in single chemical compound. While an established drug substance, new manufacturing process suitable large-scale commercial production had to be developed sacubitril. The use of chemocatalysis, biocatalysis, flow chemistry as state-of-the-art technologies allowed efficiently build up structure achieve defined performance targets.
The fatigue crack propagation tests for circular notched compact tension specimens of GH4133B superalloy used in a turbine disk aero-engine are carried out at room temperature. test data shows that the transition region from short to long growth, growth rate appears as fluctuation form with acceleration following deceleration. A quasi harmonic function is constructed model region, and result indicates such suitable describe behavior. metallographic analysis respect microscopic observation...
Abstract Mesoporous silica has been functionalized with vanadium pentoxide (V 2 O 5 ) and cerium oxide (CeO ). It was then immobilized biocatalyst horseradish (HRP) to realize highly sensitive detection of H . The electrode characterized SEM, cyclic voltammetry, impedance measurements. A well‐defined peak for HRP reduction noticed at about −0.31 V an apparent heterogeneous electron transfer rate constant 1.01 s −1 catalytic achieved. Michaelis calculated be 0.018 mM. On this electrode,...
Different combinations of low impact development (LID) technologies can be applied for control urban non-point source pollution. There are currently few evaluations pollution and load reduction based on a combination porous asphalt bio-retention. Taking Shenzhen International Low Carbon City as an example, road-deposited sediments were collected prior to after rainfall events. Runoff was monitored under six typical events, from the inlet/outlet Through analysis changes in process...
Abstract With intensified global warming, accurate quantification of hydrological processes in seasonally frozen regions, particularly with irrigated overwinter crops, is necessary to develop management strategies that promote groundwater conservation. By incorporating a physically based freeze‐thaw cycle module into the Soil and Water Assessment Tool (SWAT‐FT) model, variations surface hydrology dynamics were systematically assessed North China Plain under three Shared Socioeconomic...
At room temperature, the low cycle fatigue tests for smooth specimens of TC25 titanium alloy under various stress ranges are operated at a CSS280I-20w Electro Hydraulic Servo Universal Testing Machine with microscopic observation system, and lifetimes measured. Based upon analysis stress-strain hysteresis loop alloy, simplified Manson-Coffin formula is derived according to both experimental characteristics constitutive model, plotted against ranges, stress-fatigue life curve obtained by...
Acid fracturing, with a pumping pressure up to 140 MPa for fractural liquid injection, is commonly used in enhanced oil recovery. Subjected severely high hoop stress, stress corrosion cracking (SCC) often occurs at cracks inside manifold elbows which are due acid and fracturing propping agent erosion. To avoid the occurrence of SCC, it necessary establish substantial understanding fracture strength thick-walled elbow, including state distribution elbow SCC properties material. Base on...
The temperature sweep tests at defferent frequencies and heating rates, frequency various temperatures for the samples of poly(methyl methacrylate) are carried out on a dynamic mechanical thermal spectrometer EPLEXOR® 500N-Gabo. effects temperature, rate properties investigated. results indicate that glass transition increases with increasing from 1 to 100Hz, 3 8°C/min as well. curves rates suggest storage modulus is non-sensitive 3°C/min or 8°C/min, while 5°C/min, there exists critical...
The fatigue crack growth tests for nickel-based GH4133B superalloy used in turbine disk of a type aero-engine are carried out at room temperature. stress intensity factor ranges and the rates various ratios measured, corresponding threshold determined. Using Paris formula, experiment data analyzed. It is shown that rate increasing with range ratio, modified formula considering can describe behavior precisely. fracture surface morphologies investigated using scanning electron microscope....
The high cycle fatigue tests for smooth specimens of TC25 titanium alloy under different stress ratios are carried out on a MTS 809 Material Test Machine at given maximum level 917MPa ambient temperature, the lifetimes such measured, and effects amplitude mean life analyzed. initial resistance is measured two ends specimen alloy, every certain cycles, test interrupted, current values various cycles measured. ratio change adopted to characterize damage evolution in modified Chaboche model...
The fatigue crack initiation life at various stress ratios for GH4133B superalloy specimen with different circular notch radios are studied ambient temperature and atmospheric pressure utilizing the fracture mechanics method. It is shown that a controlling parameter Δ K I / ρ 0.5 can be adopted to characterize life, effect of radius on increases increasing control parameter, while firstly then decreases ratio. surfaces notched compact tension specimens tests investigated using scanning...
The short fatigue crack growth tests for circular notched compact tension specimens of GH4133B superalloy used in turbine disk aero-engine are carried out at ambient temperature and atmospheric pressure. stress intensity factor ranges the rates various ratios measured, corresponding effective considering closure effect calculated. It is shown that range Δ K eff , can be applied to describe deceleration acceleration rate during propagation. fracture surface morphologies region investigated...
The uniaxial tensions for foam nickel ceramic specimens with different relative densities are carried out on a CSS-44020 Universal Electronic Test Machine at ambient temperature, and the tensile tests various strain rates temperatures performed as well. effects of density, rate temperature elastic modulus investigated. It is found that material increases density stain rate, while decreases temperature. Simultaneously, yield strength studied. shown stress but reversed increasing comparison...