A5029312855- Soil erosion and sediment transport
- Land Use and Ecosystem Services
- Hydrology and Watershed Management Studies
- Landslides and related hazards
- Hydrology and Sediment Transport Processes
- Antimicrobial Peptides and Activities
- Remote Sensing and Land Use
- Chemical Synthesis and Analysis
- Remote Sensing and LiDAR Applications
- Cryospheric studies and observations
- Biochemical and Structural Characterization
- Bacteriophages and microbial interactions
- Carbohydrate Chemistry and Synthesis
- Advanced Combustion Engine Technologies
- Advanced Surface Polishing Techniques
- Seismology and Earthquake Studies
- Soil Geostatistics and Mapping
- Metal and Thin Film Mechanics
- Environmental and Agricultural Sciences
- Environmental Changes in China
- Urban Transport and Accessibility
- Coordination Chemistry and Organometallics
- Climate change and permafrost
- Synthesis of Indole Derivatives
- Advanced Image and Video Retrieval Techniques
East China University of Science and Technology
2024-2025
Henan Agricultural University
2024
University of California, San Diego
2000-2024
Chuzhou University
2024
Jilin University
2012-2023
State Key Laboratory of Automotive Simulation and Control
2020-2023
Tsinghua University
2002-2023
Jiangsu Center for Collaborative Innovation in Geographical Information Resource Development and Application
2020-2023
Nanjing Normal University
2010-2023
Nanjing University of Information Science and Technology
2023
With accelerating urbanization, the regional ecological security pattern (ESP) faces unprecedented threats. The situation is particularly serious in Loess plateau of China (LPC) due to fragile environment and poor natural conditions. Constructing an network optimizing ESP significant for guiding development maintaining stability process. This study constructed by integrating minimum cumulative resistance (MCR) model morphological spatial-pattern-analysis approach LPC. Additionally,...
Natural capital accounting is an essential prerequisite for the harmonious development of human beings and nature benign interactions between economy environment. Although ecological footprint has significantly contributed to sustainability evaluation many years, traditional model limited by lack value accounting, incomplete account content, neglect multi-functions land, geographical spatial heterogeneity. These limitations reduce universality this model. To improve model, study takes...
Assessing cultivated land resource assets is a prerequisite for management and protection. Existing methods on the physical quantity usually ignore change in quality value lack unified standard framework. In this study, calorific was introduced to calculate an integrated accounting system with quantity, established based substitution market, income reduction, equivalent factor methods. Taking 14 cities Xinjiang as study area, quantities from 1990 2018 were calculated analyzed reveal...
The total synthesis of the novel immunosuppressant sanglifehrin A (SFA, 1) is described. approach flexible, convergent, and stereoselective. use Paterson's aldol methodology was pivotal for preparation novel, highly substituted spirolactam fragment SFA. 22-membered macrocyclic core molecule coupling this to moiety were successfully achieved using selective intra- intermolecular Stille reactions, respectively. Carbodiimide-based protocols employed tripeptide backbone.
Abstract Terraces are striking artificial landforms on slopes and widely distributed in the world. vital to soil water conservation agricultural production. However, automatic extraction of terraces entails certain drawbacks, such as low accuracy poor generalization ability. This study proposes a novel approach automatically extract from remote sensing images digital elevation models (DEMs) with high precision. First, terrace samples annotated collected train model. Then, three sample areas...
Abstract With the continuous development of aerospace, defense, and military industry, along with other high-end fields, complexity machined parts has gradually increased. Consequently, demand for tool intelligence also strengthened. However, traditional tools are prone to wear during cutting due high forces, temperatures, vibrations. Intelligent tools, in contrast ones, integrate sensors into their design, allowing real-time monitoring status timely prediction wear. The application...
Quantitative analysis of the differences and exploration evolution models different loess landform types are greatly important to in-depth understanding process mechanism landforms. In this research, several typical areas in Chinese Loess Plateau were selected, object-oriented image (OBIA) method was employed identify basic types. Three-dimensional (3D) landscape pattern indices introduced on foundation measure morphological structural features individual objects more detail. Compared with...
Wedelolactone, a benzofuran based natural product that can be isolated from Eclipta prostrata, exhibits variety of biological activities. It is inefficient to obtain wedelolactone sources, so it great significance perform total synthesis study on this important compound. In the current study, novel featuring palladium-catalyzed Suzuki coupling and acid-promoted intramolecular transesterification was discovered. comparison with those reported routes, strategy more convenient efficient, used...
Abstract The topological system of lakes and streams is the basis for deriving a multitude patterns processes in hydrology, geomorphology ecology. Flow direction key to constructing lake‐stream system. However, are important hydrological objects that should be considered since they linked during process material energy transportation. Therefore, flow algorithm can clearly express relationship streams, was proposed here. Lakes were taken as stream networks coupled into algorithm. A...
In recent years, applications and analyses based on slope units have become increasingly widespread. Compared with grid units, can better represent terrain features boundaries allow a more complete view of the morphology Earth’s surface. Maps also offer significant improvements for disaster prediction analysis land resources. Therefore, we need reasonable method unit classification. Although some methods been proposed classification, they too focused morphological variations not fully...
Abstract Sand dunes are predominantly distributed in arid regions. Automatic mapping and regionalization of sand large‐scale areas crucial to understanding the evolution trends aeolian environments. Different from existing studies primarily focused on extent desert areas, this study proposes a framework for automatic identification comprehensive based morphology. First, basal terrain dune area is constructed, difference between DEM calculated using threshold segmentation delineate dunes....
This paper presents an image motion model for airborne three-line-array (TLA) push-broom cameras. Both aircraft velocity and attitude instability are taken into account in modeling motion. Effects of pitch, roll, yaw on analyzed based geometric relations designated coordinate systems. The is mathematically modeled by multiplied exposure time. Quantitative analysis to image motion then conducted simulation experiments. results have shown that caused space invariant while by aircraft more...
Studies show that the valve lift (VL) of cam-driven hydraulic variable actuation (VVA) can be continuously adjusted in range 0–8.2 mm by controlling opening throttling valve. In present study, an orthogonal experiment with interaction was designed to analyze effect multi-factor coupling on VL, valve-seating velocity (VSV), and pressure fluctuation piston cavity. order reduce fluctuation, Taguchi method applied find optimal combination key parameters including diameter piston, spring preload...
Color calibration of digital microscope images stained biological slides may use a special slide (called slide) with known color samples that are usually filters. To evaluate quantitatively how well the has been done by particular system, another set different is needed, transmittance spectra typical material. A such colors comprises what called reference slide. In this article, method described for selecting was created prescription and then used to two embodiments management system several...