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  1.  16
    Facies, Rock Attributes, Stratigraphy, and Depositional Environments: Yanchang Formation, Central Ordos Basin, China.Stephen C. Ruppel, Harry Rowe, Kitty Milliken, Chao Gao & Yongping Wan - 2017 - Interpretation: SEG 5 (2):SF15-SF29.
    The Late Triassic Yanchang Formation is a major target of drilling for hydrocarbons in the Ordos Basin. Although most of the early focus on this thick succession of lacustrine rocks has been the dominant deltaic sandstones and siltstones, which act as local reservoirs of oil and gas, more recent consideration has been given to the organic-rich mudstone source rocks. We used modern chemostratigraphic analysis to define vertical facies successions in two closely spaced cores through the Chang 7 Member, the primary (...)
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    Prediction of Freezing of Gait in Parkinson’s Disease Using a Random Forest Model Based on an Orthogonal Experimental Design: A Pilot Study.Zhonelue Chen, Gen Li, Chao Gao, Yuyan Tan, Jun Liu, Jin Zhao, Yun Ling, Xiaoliu Yu, Kang Ren & Shengdi Chen - 2021 - Frontiers in Human Neuroscience 15.
    PurposeThe purpose of this study was to introduce an orthogonal experimental design to improve the efficiency of building and optimizing models for freezing of gait prediction.MethodsA random forest model was developed to predict FOG by using acceleration signals and angular velocity signals to recognize possible precursor signs of FOG. An OED was introduced to optimize the feature extraction parameters.ResultsThe main effects and interaction among the feature extraction hyperparameters were analyzed. The false-positive rate, hit rate, and mean prediction time were 27%, (...)
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  3. Chinese University Students’ Perceptions of Facilitation Strategies, Learning Motivation, and Satisfaction in Cloud-Based Virtual Classrooms.Rong Wang, Jiying Han, Chao Gao & Chuanyong Liu - 2021 - Frontiers in Psychology 12.
    This study investigated university students’ perceptions of facilitation strategies, learning motivation, and satisfaction, and the relationships between them in a cloud-based virtual classroom in mainland China. The results of an online questionnaire survey from a sample of 7,210 university students showed that students perceived high levels of facilitation strategies, learning motivation, and satisfaction. Students’ demographic characteristics, such as discipline, university type, gender, and grade, did not significantly affect their perceptions of facilitation strategies and learning outcomes. Instructor-student interaction and instructor innovation (...)
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    Fuzzy Integral Sliding Mode Control Based on Microbial Fuel Cell.Lei Lian, Peng Ji, Tianyu OuYang, Fengying Ma, Shanwen Xu, Chao Gao & Jing Liu - 2021 - Complexity 2021:1-8.
    Microbial fuel cell is a renewable clean energy. Microorganisms are used as catalysts to convert the chemical energy of organic matter in the sewage into electrical energy to realize sewage treatment and recover energy at the same time. It has good development prospects. However, the output power of MFC is affected by many factors, and it is difficult to achieve a stable voltage output. For the control-oriented single-chamber MFC, a fuzzy integral sliding mode control is designed. The continuous adjustment of (...)
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