A5069205912- Geotechnical Engineering and Underground Structures
- Geotechnical Engineering and Soil Mechanics
- Geotechnical Engineering and Soil Stabilization
- Space Science and Extraterrestrial Life
- Planetary Science and Exploration
- Seismic Waves and Analysis
- Spacecraft Design and Technology
- Seismic Performance and Analysis
- Coal Properties and Utilization
- Grouting, Rheology, and Soil Mechanics
- Civil and Geotechnical Engineering Research
- Urban Transport and Accessibility
- Geoscience and Mining Technology
- Hydrocarbon exploration and reservoir analysis
- earthquake and tectonic studies
- Methane Hydrates and Related Phenomena
- Geotechnical Engineering and Analysis
- Soil, Finite Element Methods
- EEG and Brain-Computer Interfaces
- Microbial Applications in Construction Materials
- Proteins in Food Systems
- Rock Mechanics and Modeling
- Industrial Vision Systems and Defect Detection
- Vehicle License Plate Recognition
- Food Chemistry and Fat Analysis
Yunnan Agricultural University
2024
China Earthquake Administration
2009-2024
Heilongjiang Earthquake Agency
2022
Wuhan University
2020-2021
Yunnan University of Finance And Economics
2021
Taizhou University
2020
Zhejiang University
2020
Guilin University of Technology
2019
Research Institute of Petroleum Exploration and Development
2017-2019
Xi'an Jiaotong University
2013
Objective. Various approaches have been applied for the quantification of event-related desynchronization/synchronization (ERD/ERS) in EEG/MEG data analysis, but most them are based on band power analysis. In this paper, we sought a novel method using nonlinear measurement to quantify ERD/ERS time course motor-related EEG. Approach. We Kolmogorov entropy EEG relation hand movement imagination and execution first time. To further test validity measure, tested it five human subjects feature...
The 2008 M w 7.9 Wenchuan, earthquake caused naturally deposited ravelly soils to liquefy over a wide area. Although liquefaction of gravely is recognized by the geotechnical profession, observations and nonlique-faction case histories within literature are few. Through several years systematic study following Wenchuan (M 7.9), 92 locations gravel were identified, described, mapped. These lie an approximately 3,000 km 2 area Chengdu Plain. Peak ground accelerations estimated at sites range...
Abstract This study conducted scientific evidence linking neighbourhood built environment to adults’ leisure‐time physical activity (LTPA) among adults in China. Data were obtained from a questionnaire survey April July 2017 1002 aged 18‐69 years old Pingshan District, Shenzhen, Chinese Walkable Environment Scale for urban community residents and International Physical Activity Questionnaire used measure participants’ activity, which was categorised into walking (LTW) moderate‐to‐vigorous...
Coal reservoirs in the Qinshui Basin are characterized by high thermal evolution degree, low permeability, reservoir pressure, lower gas saturation and strong heterogeneity, so its coalbed methane (CBM) development is quite difficult. In this paper, practice of high-rank CBM horizontal wells Fanzhuang–Zhengzhuang Block was analyzed terms geological engineering factors to clarify productivity influencing factors, suitable conditions potential tapping countermeasures multi-lateral wells. It...
With the progress of deep learning research, convolutional neural networks have become most important method in feature extraction. How to effectively classify and recognize extracted features will directly affect performance entire network. Traditional processing methods include classification models such as fully connected network support vector machines. In order solve problem that traditional is prone over-fitting for small samples, a CNN-TWSVM hybrid model was proposed by fusing twin...
Displacement spectrum is an essential aspect in displacement-based seismic design (DBSD) philosophy that, comparing to force-based, describes a more explicit way the structural response and damage. To better apply DBSD, displacement model period ranging up 15 s rephrased using recent high-quality digital strong motion data worldwide, particularly from China territory. After systematical analysis conducted of influence factors as magnitude, distance, site conditions on spectrum, it found that...
The structure and fractal characteristics of nanopores high-rank coal were investigated using an approach that integrates N₂ adsorption field emission scanning electron microscopy (FE-SEM). results indicated the Shanxi Formation has a complex pore-fracture network composed organic matter pores, mineral-related microfractures. pore type tends to be complicated, main types are inkbottle pores open which more conducive methane enrichment. Ro,max negative relationship with total volume. In...
The relation between neighbourhood built environment and obesity has been described as both nuanced complex.The objective of this study was to examine the relationship environment, physical activity, in a rapidly urbanised area China.This is cross-sectional study. Descriptive statistics were used describe socio-demographic variables, activity levels BMI status. Multivariable logistic regression models association likelihood engaging different types BMI.A total 842 respondents completed...
Abstract Ground-motion frequency characteristics have a significant impact on structural damage. A quantitative description of the ground-motion spectral features structures is an urgent topic that requires solutions. In this study, ratio peak displacement to acceleration (R d 2 ) used as representative index characteristics. The seismic records collected from Kik-net strong-motion array in Japan are grouped according their R values. By adopting incremental dynamic analysis method, fragility...
In this experiment sodium carboxymethyl cellulose (CMC-Na) was used as the only carbon source to isolate decomposing bacteria from soil of Qiongzhusi Forest Park in Kunming, Yunnan Province. The ratio hydrolytic circle diameter and colony formed by strain on Congo red medium determined for primary screening, then filter paper disintegration test CMC enzyme activity assay were rescreen. A bacterium (HS-2) with high obtained, its up 16.42 U/ml. (U means unit enzymes, activity, unit) Gram stain...
Abstract In order to solve the problems of poor adaptability reservoir stimulation technology and low gas production single well in high-rank coalbed methane (CBM) reservoir, a new concept "methane-leading" corresponding method system are put forward. The emphasizes complexity coal energy releasing process development. Through targeted artificial stimulation, multi-stage interconnected fracture network is built reduce seepage resistance finally improve well. characteristics traditional...