A5020868910- Land Use and Ecosystem Services
- Land Rights and Reforms
- Drilling and Well Engineering
- Hydraulic Fracturing and Reservoir Analysis
- Hydropower, Displacement, Environmental Impact
- Oil and Gas Production Techniques
- Environmental Impact and Sustainability
- Conservation, Biodiversity, and Resource Management
- Urban Transport and Accessibility
- Rural development and sustainability
- China's Socioeconomic Reforms and Governance
- Spatial and Panel Data Analysis
- Environmental Sustainability in Business
- Agriculture, Land Use, Rural Development
- Environmental Education and Sustainability
- Reservoir Engineering and Simulation Methods
- Efficiency Analysis Using DEA
- Soil and Land Suitability Analysis
- Heavy metals in environment
- Remote Sensing and Land Use
- Energy, Environment, Economic Growth
- Economic and Environmental Valuation
- Organic Food and Agriculture
- Microbial Metabolic Engineering and Bioproduction
- Bioinformatics and Genomic Networks
East China University of Science and Technology
2020-2022
China National Petroleum Corporation (China)
2015-2020
Zhejiang University
2013-2019
Ministry of Natural Resources
2017
Currently, China will promote county towns' urbanization, and few studies have analyzed spatial effects of urban land-use intensity on CO2 emissions predicted at the level accurately. Here, taking data from 2010 to 2015 Zhejiang Province as an example, we effect three aspects input, density output by Durbin model (SDM). And then a machine learning method Back Propagation Neural Network (BPNN) was proposed predict for 2035 nonlinearly under different promotions intensity. The main result...
The existing evaluation system of cultivated land quality mainly considers the natural and utilisation conditions, but without sufficient emphasis on ecological environment, which can’t meet requirements trinity pattern protection policy. This study, using GIS spatial analysis multifactor comprehensive method, constructed a index system, applied it in Shengzhou. results show that: (1) under was classified into five levels revealed normal distribution with third level area as peak, successive...
Humans currently face a problematic ecological dilemma regarding economic growth. It is difficult to meet human needs by only studying growth created artificial costs, and all countries need pay attention the task of improving level welfare under constraints an environment from perspective sustainable development. The focus wellbeing performance (EWP) how achieve maximum output or higher improvement with fewest conversions natural inputs. In this paper, we use super-efficiency SBM model...
Understanding farmers’ participation is crucial for achieving an effective impact on rural living environmental governance and promoting sustainable development. Taking Sandu Town in eastern China as a case study, in-depth semi-structured interviews with farmers, village cadres, town managers were conducted this study. Then, conceptual framework incorporating comprehensive factors presented to analyze the driving mechanisms of farmer domestic waste management. The results show that...
Summary Understanding how metabolic reactions translate the genome of an organism into its phenotype is a grand challenge in biology. Genome-wide association studies (GWAS) statistically connect genotypes to phenotypes, without any recourse known molecular interactions, whereas mechanistic description ties gene function through regulatory networks (GRNs), protein-protein interactions (PPIs) and pathways. Integration different information levels expected provide good way for mapping...
The requisition–compensation balance of farmlands (RCBF) is a strict Chinese policy that aims to ensure food security. However, the process supplementing arable land has substantially damaged ecological environment through blind development grasslands, woodlands, and wetlands supplement land. Can alone security? To answer this question, study introduced concepts equivalent unit (ALEU) (FEU) based on idea Zhoushan City in Zhejiang Province, China was selected as research area. This analyzed...
In an attempt to resolve the increasingly severe grassland degradation, China has implemented a series of protection policies. Herders are one key stakeholders in these policies, and their willingness participate directly affects effective implementation We conducted field survey herders Qinghai Gansu Provinces identify factors that impact adopt policies then incorporated number extension framework Institutional Analysis Design (IAD) model. First, we analyzed using binary logistic...
Abstract Downhole shear swirling flow vibration cementing tool has shear, rotational and triple effects. It can improve quality in various aspects. This paper developed discussion the aspects of to change fluid performance by realize turbulent displacement wall stress flow, periodically relative position clearance casing eccentric revolution, increase compression strength cement so on. analyzed mechanism enhancing downhole detail. deepened understanding tool. Then research results help...
During extracting casing in high-inclination directional well, the existence of variable direction joint (VDJ) can enhance build-up ability washover string. And it increase compatibility between head and to some extent. However, too large or small bending angle VDJ will result that cuts upper bottom parts casing. Therefore, is necessary design reasonable angles for damage wells with different borehole curvature. In this paper, through geometrical mechanical analysis on string VDJ, a rate...
Nowadays extracting or changing casing is a mature technique used in vertical wells, which can solve the problems of breaking and corrosion. But for directional damage phenomena milling head cutting often happen because stiffness difference between washover string casing. In order to evaluate compatibility casing, some studies have been made this paper: (1) an axial force calculation model established, mechanical analysis condition well wall outside inside. (2) turning obtained through...
Abstract In horizontal Wells, non-uniform ground stress is the root cause of irregular borehole shape. The failure caliper instrument in section leads to accurate evaluation shape, which makes it difficult calculate frictional resistance tubing string later stage. This paper studies shape calculation model from following two aspects: (1) aspect diameter expansion caused by shaft wall collapse. By establishing coulomb-Mohr criterion cylindrical coordinate system, well collapse instability...