A5102751290- Force Microscopy Techniques and Applications
- Adhesion, Friction, and Surface Interactions
- Polymer Surface Interaction Studies
- Diamond and Carbon-based Materials Research
- Hydrogels: synthesis, properties, applications
- Biopolymer Synthesis and Applications
- Corrosion Behavior and Inhibition
- Dyeing and Modifying Textile Fibers
- Photopolymerization techniques and applications
- Skin Protection and Aging
- High voltage insulation and dielectric phenomena
- Graphene and Nanomaterials Applications
- Dendrimers and Hyperbranched Polymers
- Biomedical and Engineering Education
- Enhanced Oil Recovery Techniques
- Epoxy Resin Curing Processes
- Photochromic and Fluorescence Chemistry
- Lubricants and Their Additives
- Carbon and Quantum Dots Applications
- Smart Materials for Construction
- Anodic Oxide Films and Nanostructures
- Ferroelectric and Negative Capacitance Devices
- Advanced Neural Network Applications
- Nanocluster Synthesis and Applications
- Copper Interconnects and Reliability
Chizhou University
2017-2023
Sinopec (China)
2021
Tsinghua University
2012-2021
Shandong University of Technology
2021
Carnegie Mellon University
2020
University of Akron
2016-2017
Tianjin University
2013-2014
Intel (United States)
2012
Fudan University
2007
Friction behavior of aqueous solution at macroscale is quite different from that nanoscale. At macroscale, tribochemistry usually occurs between lubricant and friction surfaces in the running-in process due to a high contact pressure, most such processes can lead reduction. In present work, we reported hydrogen ions played an important role (friction reducing process), which could result coefficient 0.4 0.04 Si(3)N(4) glass macroscale. It found low state are closely dependent on...
Carbon sources with different numbers of carboxyl groups greatly affect the photoluminescence and quantum yield carbon nanodots.
Abstract Although investigations on superlubricity are increasing, the corresponding measurement errors, which have a great effect measured friction coefficient, not been widely discussed. The present article analyzes origin of errors in rotating ball-on-flat apparatus and shows that these play an important role relationship between real coefficient. Based analysis, two methods were proposed to eliminate main error. One is obtaining same coefficients reverse sliding directions by adjusting...
The scaling of the thickness, hs, a densely grafted polymer brush chain length N and grafting density σ swollen in vapor agrees quantitatively with reported by Kuhl et al. for brushes liquid. Deep brush, next to substrate, shape segment concentration profile is same whether liquid or vapor. Differences are manifested primarily interface surrounding fluid. much more abrupt than that This has implications compressibility surface fluctuations at surface.
A chemical-crosslinked, biocompatible and injectable hydrogel was formed by Fenton reaction initiated polymerization. The gelation time of N-(2-hydroxyethyl)acrylamide PEG-diacrylate, which are two representative monomers, shown to be tunable from instant 15 min at an H2O2 concentration below several mmol L−1 in neutral medium. strength the could regulated monomer Fenton's reagent. hydrogels prepared H2O2/Fe2+ initiation showed low cytotoxicity. bone marrow mesenchymal stem cells L929...
The demulsification of the oily wastewater generated in oil recovery process is very important crude exploitation. In present work, 10 block copolymers based on polyethyleneimine were synthesized, and their performances for treating studied. evaluation efficiency, effects temperature, dosage treatment by prepared also investigated. To explore causes differences, interface activity copolymer molecules at water‐oil was investigated interfacial tension, a mechanism diagram proposed. could be...
Swollen polymer brushes are found in various applications including biomedical coatings where the brush provides stability against harsh environmental conditions and mediates interactions with surroundings. The surface height fluctuations of planar polystyrene (0.04–0.61 chains/nm2) highly swollen toluene vapor so strongly slowed by tethering chains that they unobservable current experimental window length time. This is case despite fact segmental dynamics should be very fast due to...
The research on the diffusion of water in coatings has been a hot topic many fields, such as chemistry, coating structure and hydrogen bonding. In this paper, DGEBA epoxy was used sample to explore process 3 wt.% NaCl solution at different temperatures. Two-stage established by immersion experiment MD simulation. synergistic effect temperature properties revealed FTIR method adsorption-desorption cyclic testing. results showed that increased, saturation content increased. At temperatures,...
Abstract NOTE: The first page of text has been automatically extracted and included below in lieu an abstract An Integrated Undergraduate Biomedical Engineering Laboratory Course courses are essential part a successful undergraduate engineering curriculum. integrated laboratory course was developed to provide undergraduates biomedical with the opportunity make measurements on interpret data from living systems. Through combination lectures experiences, students were exposed five areas...
Initial reaction mechanisms of atomic layer deposition TaN barrier on the different group-terminated SiOC surfaces have been investigated by density functional theory. TaCl5 molecules are hardly absorbed –CH3 terminated mostly existing in dielectrics, which retards a uniform growth. After NH3 plasma pretreatment, –NH2 enhance chemisorptions and guarantee ALD sequences to go ahead, thus dielectrics can be easily synthesized. In addition, HCl as by-products desorbed benefit high quality with...
To achieve high accuracy, DNN training usually consumes and generates myriads of data, which requires a large DRAM for efficient processing. The refresh power consumption in has become severe problem. Previous energy saving methods have drawbacks on usability, flexibility or supporting. We propose ADROIT, an adaptive dynamic optimization framework various DNNs processing platforms. ADROIT dynamically adjusts the rates different types data according to runtime loss feedback training. Data...
To reveal the failure mechanism of epoxy coating under condition high concentration ion content, taking DGEBA as research object, this paper manually coated X80 steel samples with coating, and five-point test method determined thickness at 25±5 μm. The electrochemical impedance change characteristics sample in 10 wt.% NaCl solution immersion time were studied by test, evolution was established. results show that process can be divided into three stages: diffusion process, formation electric...
Abstract At present, hydraulic transmission loaders have high automatic adaptability and convenient operation, but their efficiency is low, the intelligent degree of energy consumption regulation limited. Strengthening research locking device in torque converter an important measure to effectively reduce consumption. Therefore, uses MATLAB software parameters build external characteristic curves engine converter, builds dynamic model based on working principle process lockup clutch. The...
Abstract With the development of machine vision technology, visual inspection technology has been widely used in many fields. Among them, 3D detection based on line structured light attracted attention relevant scholars because its advantages easy acquisition image information and high accuracy. Therefore, applying to field three‐dimensional weld can improve effect, so a simulation analysis was proposed. First, model parameter calibration algorithm imaging system are studied, then...