Core Technology Analysis of Intelligent Takeaway Cabinet System

1-7

Guixian Lin, Lu Zhang

Research Progress on Formation Mechanism of Plant Continuous Cropping Disorder

8-13

Lirong He, Na Wang

Analysis of the Application of Role-playing Method in the Teaching of Whole-process Cost Management Specialty in Higher Vocational Education

14-19

Liwei Fang

Effects of Different Exogenous Additive Materials on Soil Organic Matter and Cation Exchange Capacity

20-23

Zhe Liu, Shiliu Cao, Peng Wang

Study on Rapid Prediction of Coal Calorific Value by Hyperspectral Technique

24-28

Yongchun Wang, Liming Zhang and Mingxing Hao

Research Progress of Land Use Change at Home and Abroad

29-32

Li Qi, Siqi Liu

Study on Denoising Method of Acoustic Emission Signal of Natural Gas Pipeline Ball Valve Internal Leakage

33-44

Hengli Pu, Mingjiang Shi

Research Progress of Rural Revitalization Based on CNKI Database

45-49

Qing Liu

Study on Biological Control Technology of Plant Continuous Cropping Obstacle

50-54

Lirong He, Yintian Xiao

Spatial and Temporal Variability of Soil Moisture in the Loess Plateau

55-58

Lu Zhang, Lei Shi

Research on Teaching Reform of University Physics

59-62

Junmeng Lyu

Environmental Behavior of Polybrominated Biphenyl Ethers in Several Typical Environmental Media

63-67

Hongjian Fan, Liangyan Yang

Analysis and Forecast of Currency Based on ARIMA Model and Random Forest Regression Model

68-73

Wenjun Yang

The Effects of Different Conditions on the Preparation of C4 Olefins by Ethanol Coupling

74-80

Xinyi Li, Fangming Qi, Kaidi Wang and Lipu Zhang

Comparative Study of Land Use Classification in Yan 'an City Based on Random Forest and Neural Network

81-86

Dan Wu, Liangyan Yang

Research on Data Visualization Design Based on Big Data

87-90

Huiting Sun, Yanbin Long, Yuantao Li, Haoran Sun

Design of Lifting Equipment Beneficial to Students' Muscle Strength Training

91-97

Feiyang Teng, Yiming Niu, Jiaxing Wan, Jiasen Liu, Feng Yan

Research on Application of AGV Drive Unit Based on Finite Element Method

98-104

Yanxia Wang, Ningqiang Wu and Yuan Shao

Discussion on the Prevention and Control of Land Degradation in China

105-110

Panpan Zhang, Yanan Li

Progress in Research on Heavy Metal Pollution and Prevention in Soil-Crop Systems

111-117

Liheng Xia, Panpan Zhang

Discussion on Teaching Reform of Securities Course

118-123

Zhi Zhang

Progress in the Study of Sediment and Soil Heavy Metal Distribution Patterns in the Yangtze River Basin

124-128

Liheng Xia, Yanan Li

The Beauty of Raindrop Glaze’s Accidental Colouring

129-133

Yurong Wang

Research Progress on the Remediation of Heavy Metal Contaminated Soil by Edible Mushrooms

134-138

Liheng Xia, Jing Zhang