A5021690304- Advanced Materials Characterization Techniques
- Diamond and Carbon-based Materials Research
- Ion-surface interactions and analysis
- Metal and Thin Film Mechanics
- Force Microscopy Techniques and Applications
- nanoparticles nucleation surface interactions
- X-ray Diffraction in Crystallography
- Crystallization and Solubility Studies
- Semiconductor materials and devices
- High-pressure geophysics and materials
- Biomedical Text Mining and Ontologies
- Reproductive Health and Technologies
- Rangeland Management and Livestock Ecology
- Intimate Partner and Family Violence
- Advanced battery technologies research
- Electron and X-Ray Spectroscopy Techniques
- Plant Ecology and Soil Science
- Demographic Trends and Gender Preferences
- Groundwater and Watershed Analysis
- Electrocatalysts for Energy Conversion
- Advanced Chemical Physics Studies
- Wireless Sensor Networks and IoT
- Safety and Risk Management
- Speech Recognition and Synthesis
- Natural Language Processing Techniques
Inner Mongolia Agricultural University
2024
Southwest University
2023
Peking University
1991-2022
Pennsylvania State University
1987-1988
Atomic structures and atomic steps in the reconstruction of Ir Pt (001), (110), (131) surfaces, induced by nanosecond-pulsed-laser heating, have been observed field-ion microscope. The quasihexagonal arrangement atoms a (1\ifmmode\times\else\texttimes\fi{}5)-reconstructed (001) plane is revealed for first time mapping position surface reconstructed layer while it gradually field evaporated. reconstructs during annealing via disordered phase. final ordered phase has structure similar to...
Atomic steps and atomic structures in the reconstruction of Pt Ir surfaces, induced by nanosecond pulsed-laser heating, have been studied field ion microscopy. (110) planes reconstruct from (1×1) to (1×2) breaking [110] atom rows into fragments two several atoms lateral cross-channel jumps these fragments. Jumps single are rare. The structure we observed is consistent with ‘‘simple’’ missing row model. hexagonal Ir(001) (1×5) reconstructed surface has directly for first time. image appears...
Water resources are crucial factors that limit vegetation recovery, and rational planning of silvicultural patterns is essential for the efficient utilization water in arid semi-arid regions. This study examined strategies pure shrubs (pure stands
A novel method is proposed, which for performing just-in- time adaptation on language models in Chinese speech recognition using Web search engines. Latent semantic analysis (LSA) employed to change the probability distribution of N-gram model. The has two advantages. First, it needs relatively small amount data can be obtained from on-the-fly. Second, comparing traditional formula LSA, proposed approach more efficient, ensures second pass decoding performed with high speed. Experiments show...
According to the major phenomenon of cracks occurring in exterior wall insulation building, it analyzes causes fracture and potential harm main building structure. Combined with engineering practice, puts forward design principles control measures preventing accordance crack-caused crack-resistance mechanism.
Etude par microscopie ionique a emission de champ la structure atomique des surfaces equilibrees thermiquement. Observation une technique chauffage laser pulse reconstructions Ir, Pt. Analyse images obtenues pour Si bien ordonnees et resolues
The atomic structure of a solid surface can be imaged with the field-ion microscope and chemical species atoms identified by time-of-flight atom probe. By incorporating pulsed-laser technique to miscroscopy, structures steps in reconstruction studied spatial resolution ∼2.5 Å time few nanoseconds. mass material applicability probe are greatly improved, it is also an ion energy analyzer 5 parts 105 accuracy resolution, reaction dissociation 20 fs resolution. Some interesting phenomena such as...