A5102009628- Advanced Polymer Synthesis and Characterization
- Environmental and Agricultural Sciences
- Climate variability and models
- Environmental Changes in China
- Hydrology and Watershed Management Studies
- Photochromic and Fluorescence Chemistry
- Hydrogels: synthesis, properties, applications
- Hydrology and Drought Analysis
- Groundwater and Watershed Analysis
- Polymer Surface Interaction Studies
- Vestibular and auditory disorders
- Water-Energy-Food Nexus Studies
- Precipitation Measurement and Analysis
- Nanoparticle-Based Drug Delivery
- Flood Risk Assessment and Management
- Synthetic Organic Chemistry Methods
- Glaucoma and retinal disorders
- Research studies in Vietnam
- DNA and Nucleic Acid Chemistry
- Energy and Environment Impacts
- Migraine and Headache Studies
- Water Quality and Pollution Assessment
- Groundwater and Isotope Geochemistry
- Transcranial Magnetic Stimulation Studies
- Hydrology and Sediment Transport Processes
China Institute of Water Resources and Hydropower Research
2016-2023
Ministry of Water Resources of the People's Republic of China
2016-2023
Peking University
2011-2017
Peking University People's Hospital
2017
Xi'an Medical University
2013-2016
Capital Medical University
2016
China Rehabilitation Research Center
2016
Shaanxi University of Science and Technology
2010-2011
Caged antisense oligodeoxynucleotides (asODNs) are synthesized by linking two ends of linear using a photocleavable linker. Two them (H30 and H40) have hairpin-like structures which show large difference in thermal stability (Delta T(m) = 17.5 degrees C 11.6 C) comparing to uncaged ones. The other three (C20, C30 C40) without stable secondary the middle 20 deoxynucleotides complementary 40-mer RNA. All caged asODNs restricted opening provides control over RNA/asODN interaction. RNase H assay...
Abstract Twenty-one provinces in China have the problem of groundwater over-exploitation, and Hebei is province with longest-lasting most severe over-exploitation problems. In 2014, Chinese government initiated a pilot project control Province. Comprehensive measures been adopted, including replacement supply surface water, development water-saving agricultural irrigation system, adjustment planting mode, improvement water use right pricing systems. Pilot projects treatment Province can...
We intend to form photosensitive block copolymer micelles for controllable release of encapsulated substances. Here, we designed and synthesized a new photocleavable cross-linker (2-nitrophenyl ethylene glycol dimethacrylate) methyl methacrylate (MMA) atom transfer radical polymerization. Four different ratios (0:1, 1:26, 1:16, 1:8.8) the MMA monomer were used four copolymers (P0, P1, P2, P3) with PEO-Br as macroinitiator. Gel permeation chromatography (1) H NMR studies showed that linear...
Abstract Groundwater is an important water source to support China's economic and social development. Since the 1970s, China, especially north region, has started intensively pump groundwater as a supply for agricultural irrigation, industry city expansion. To meet demand due rapid development of economy society, continuously disorderly exploited great extent prolonged time in some regions besides faulty operation management, insufficient emphasis on protection, which leads severe problems...
In response to major water-related challenges, the Chinese government is preparing significantly expand river restoration efforts. The high level of development in many basins requires that this work be undertaken strategically. This article identifies current global challenges and presents a framework for strategic restoration, together with set eight 'golden rules'. rules were developed specifically address situation, but are relevant elsewhere, particularly heavily highly contested basins.
ABSTRACT A crosslinked amphiphilic copolymer [poly(ethylene glycol) (PEG)–poly(methyl methacrylate) (PMMA)–ethylene glycol dimethacrylate (EGDM)] composed of PMMA, PEG, and crosslinking units (EGDM) was synthesized by atom transfer radical polymerization to develop micelles as carriers for hydrophobic drugs. By adjusting the molar ratio methyl methacrylate EGDM, three block samples (P0, P1, P2) were prepared. The measurement gel permeation chromatography 1 H‐NMR indicated formation...
ABSTRACT A novel dual‐responsive (light and pH) particle based on poly(methacrylic acid), acid)–poly[1‐(2‐nitrophenyl)ethane‐1,2‐diyl bis(2‐methylacrylate)]was prepared with the facile method of two‐step homogeneous radical polymerization methacrylic acid as monomer 1‐(2‐nitrophenyl)ethane‐1,2‐diyl bis(2‐methylacrylate) a photodegradable crosslinker. Photolytic assessments were conducted upon irradiation UV lamp; this led to disintegration caused by cleavage photolabile crosslinking points....
Abstract The trend of change in temperature and precipitation North China Plain over past few decades was examined using the non-parametric Mann-Kendall test this paper. For part, a significant positive annual (0.03 °C/year) non-significant negative (-0.67 mm/year) are found (NCP) from 1960 to 2009. Furthermore, winter summer be most important factors for change. increases 0.04°C per year. As precipitation, it by 11% south Yellow River, NCP, decreases 20% north 2000-2009 compared 1990-1999....
[Purpose] The purpose of this study was to explore the immediate effects different frequencies auditory stimulation on lower limb motor function healthy people. [Subjects and Methods] subjects were 7 people (5 males 2 females). subjects' measured without (control), with 500, 1,000, 1,500, 2,000 Hz. parameters maximum knee extension torque, average Timed Up Go test (TUG) time, Functional Reach (FR), 10-meter walking time. [Results] TUG times Hz showed significant decreases compared control....
Abstract The traditional drought field studies are inadequate to study characteristics from the perspective of trend and periodicity at same time, especially compare interannual interdecadal variations different types in reveal their similarity difference patterns. Pearl River Basin (PRB) was determined this paper using standardized precipitation evapotranspiration index (SPEI) empirical orthogonal function (EOF)/rotated (REOF). Periodic features were recognized by extreme-point symmetric...
Abstract Traditional studies on the carrying capacity of groundwater resources mainly focus a comprehensive evaluation, and this paper provides quantitative prediction early warning resources, which is important for management protection. This study constructed an indicator system established method determined grades Henan Province various cities from 2023 to 2025, analyzed spatial distribution pattern. The results showed that 2025 were mild warnings. In subsystems, economic society systems...
Abstract A precipitation barycenter reflects the overall spatial distribution and long-term evolution of regional precipitation. Understanding changes in has significant implications for drought management, flood control, water resource management. This paper analyzed transfer monthly, interannual, interdecadal on Huang-Huai-Hai Plain (‘3H’ Plain). We also discussed influence station network barycenter. The results were as follows: (1) trajectory monthly ‘3H’ was generally ‘8’-shaped. rainy...
Abstract The traditional groundwater overexploitation restoration only considers the impact on groundwater, basis of which, this paper also comprehensively economic society and ecological environment. Based analyzing effect groundwater–economic society–ecological environment (GESEE) system, an evaluation indicator system covering GESEE was constructed, method for established, effects were evaluated Hebei Province, China, from 2014 to 2019. results showed that in Province obvious, grade...